WO2017020827A1

WO2017020827A1 - Integrated compact intelligent power information collection module

Info

Publication number: WO2017020827A1
Application number: PCT/CN2016/093014
Authority: WO
Inventors: 颜庭乔; 马成有; 殷东明; 杨飞
Original assignee: 南京新联电子股份有限公司; 南京新联电能云服务有限公司
Priority date: 2015-08-04
Filing date: 2016-08-03
Publication date: 2017-02-09
Also published as: CN105021929B; CN105021929A

Abstract

Provided is an integrated compact intelligent power information collection module. The power information collection module comprises: a module base (6), a power access and voltage sampling unit (1) disposed on the module base (6), and a circuit board (4) connected to the power access and voltage sampling unit (1), wherein a test power cable (L) is clamped by the module base (6) and the power access and voltage sampling unit (1) so that the power information collection module engages the test power cable (L), and the power access and voltage sampling unit (1) pushes a pointed mechanism thereof to pierce an insulation layer of the test power cable (L) so as to sample a voltage of a conductive core (M) of the test power cable (L). The power information collection module is characterized by a compact size, a light weight and a low cost, and can be installed easily. Moreover, the invention can effectively monitor power utilization information and power quality of a power utilization loop branch, thereby realizing precise power utilization management.

Description

Integrated small intelligent power information collection module

[0001] The present application claims the priority of the Chinese invention patent filed on August 4, 2015, the application number is CN201510469865.7, and the invention name is "integrated small smart power collection module", and all contents of the invention patent are here. All introduced. Technical field

[0002] The present invention relates to electrical information monitoring techniques, and more particularly to an integrated small smart power information collection module. Background technique

[0003] In order to achieve refined power management and demand side response, to achieve the purpose of orderly power consumption and energy saving, the power unit needs to be extended to the power circuit of each branch in addition to the monitoring of the total power circuit. Monitor. In the prior art, current transformers, collectors, communication modules, and the like are generally installed in each branch circuit to realize monitoring of power consumption information and power quality of each power circuit.

[0004] The current transformer in the existing monitoring device is composed of a primary transformer and a secondary transformer (generally called an instrument transformer, which is installed in the collector), which is large in size and high in cost, and is limited by the installation space on site. Installation is difficult, and even some branch circuits need to be modified to install; there are many branch circuits in the power unit, and each branch circuit needs to be connected to current transformers, collectors, communication modules, etc., and the equipment cost is high; The voltage signal is connected to each branch, and the power failure operation is required during installation to affect the production and operation activities of the power unit. There are many on-site access cables, and even professional wiring is required. The installation difficulty and workload are large, and the construction cost is high. High and long construction period. Summary of the invention

In view of this, the technical problem to be solved by the present invention is to provide an integrated small intelligent power information collection module, which solves the problems of large size, high cost, and difficult installation of existing monitoring equipment, and affects the production of power units during the installation process. Operational issues.

In order to solve the above problems, a specific embodiment of the present invention provides an integrated small smart electric device. The force information collecting module comprises: a module base, a power access and voltage sampling unit disposed on the base of the module, and a circuit board connected to the power access and voltage sampling unit. The module base and the power access and voltage sampling unit jointly clamp the cable under test so that the power information acquisition module is stuck on the cable under test, and the power access and voltage sampling unit are driven by the self-contained The tip mechanism pierces the insulation of the cable under test, thereby sampling the voltage of the conductive core of the cable under test.

[0007] Embodiments of the present invention also provide an integrated small intelligent power information collection module, including: a power supply access and voltage sampling unit, a current sampling unit, a cable temperature detecting component, a circuit board, and a branch neutral wiring port. , module base. Wherein, the power access and voltage sampling unit and the current sampling unit are connected to the module base, the cable temperature detecting component is installed at the bottom of the tested cable, the circuit board is installed in the module base, and the branch neutral wiring port is connected to the power information. In the acquisition module.

[0008] When working, the power access and voltage sampling unit and the current sampling unit are shared module bases, and the branch zero line is connected to the power information acquisition module by the branch zero line connection port, and the circuit board in the module base can be performed. Signal processing and transmission, cable temperature detecting component is installed at the bottom of the cable to be tested, the temperature of the cable surface can be detected, the insulating sleeve and the crimping block are tightly pressed together with the cable under test, and the insulating sleeve and/or the crimping block have剌Needle, during the extrusion process, the 剌 pin can be connected to the cable conductive core through the cable insulation layer to carry out voltage collection, so that the power information acquisition module can be directly hung on the cable under test, and the mechatronic design makes the power information The acquisition module is small in size and easy to install.

[0009] Through the description of the above specific embodiments of the present invention, it can be known that the advantages and features of the integrated small intelligent power information acquisition module are: Mechatronics design, realizing the fusion of the traditional primary current transformer and the secondary current transformer, the volume Compact, lightweight, low cost; integrated power supply and voltage sampling unit and current sampling unit, the voltage signal can be collected, the current signal can be collected, and the cable surface can be realized only by installing the power information acquisition module. Monitoring function such as temperature acquisition; In the process of installing the power information acquisition module, the branch circuit does not need to be powered off. Only the opening card mechanism is used to connect the power information acquisition module to the cable under test, and the cable is squeezed through the pressure block. The 剌 pin is connected to the cable conductive layer through the cable insulation layer, and the conductor pin introduces the voltage signal into the power information acquisition module to supply power to the power information acquisition module, and realizes functions such as voltage sampling, current sampling and data transmission, and is simple to install and convenient to operate. , construction speed is fast, low cost, in During the installation process, there is no impact on the production and operation of the electricity unit.

[0010] It is to be understood that the foregoing general description and claims DRAWINGS

[0011] The accompanying drawings, which are set forth in the claims

[0012] Figure 1 is a structural view of the overall installation of the present invention;

[0013 Figure 2 is an open structure diagram before installation;

[0014 Figure 3A is a power supply access and voltage sampling structure diagram;

[0015] FIG. 3B is an enlarged structural view of the lancet of FIG. 3A;

[0016 Figure 4 is a current sampling structure diagram.

[0017] Symbol Description:

[0018] 1 power supply access and voltage sampling unit

[0019] 2 current sampling unit

[0020] 3 cable temperature detecting element

[0021] 4 circuit board

[0022] 5 branch neutral wiring port

[0023] 6 module base

[0024] 1-1 crimping bracket

[0025] 1-2 pressure line bracket shaft

1-3 tightening the crimping bracket fixing member

[0027] 1-4 rotating crimping screw

[0028] 1-5 crimping block

[0029] 1-6 剌 needle

[0030] 1-7 Insulation sleeve

[0031] 2- 1 current sampling unit cover

[0032] 2-2 Current Sampling Cap Shaft

[0033] 2-3 magnetic core

[0034] 2-4 sampling chip embodiment The spirit and scope of the present invention will be apparent from the following description of the embodiments of the invention. The embodiments may be modified and modified by the teachings of the present invention without departing from the spirit and scope of the invention.

The illustrative embodiments of the invention and the description thereof are intended to illustrate the invention, but are not intended to limit the invention. In addition, the same or similar reference numerals are used in the drawings and the embodiments to represent the same or similar parts.

[0037] Referring to FIG. 1 and FIG. 2, an integrated small intelligent power information collection module includes: a power supply access and voltage sampling unit 1, a current sampling unit 2, a cable temperature detecting component 3, a circuit board 4, and a branch neutral wiring. Port 5, module base 6. Wherein, the power supply access and voltage sampling unit 1, the current sampling unit 2 is connected to the module base 6, the cable temperature detecting component 3 is installed at the bottom of the tested cable L, the circuit board 4 is installed in the module base 6, and the branch neutral line The wiring port 5 is connected to the power information collecting module;

[0038] During operation, the power supply access and voltage sampling unit 1 and the current sampling unit 2 share the module base 6, and the branch circuit neutral line Z is connected to the power information collection by the bypassed neutral connector port 5 through the plugged connector. In the module, the circuit board 4 in the module base 6 can perform signal processing and transmission, and a cable temperature detecting component 3 is installed at the bottom of the tested cable L to detect the cable surface temperature, the insulating sleeve 1-7, the crimping block 1- 5 The cable L is tightly pressed together, so that the power information collecting module can be directly hung on the cable L to be tested. The mechatronic design makes the power information collecting module small in size and convenient to install.

Referring to FIG. 2, the power supply access and voltage sampling unit 1 includes: a crimping bracket 1-1, a crimping bracket rotating shaft 1-2, and a tightening crimping bracket fixing member 1-3. The pressure wire bracket 1-1 is connected to the pressure wire support rotating shaft 1-2, and the wire clamping frame fixing member 1-3 fixes the current sampling unit upper cover 2-1 on the module base; the current sampling unit 2 It includes a current sampling unit upper cover 2-1 and a current sampling upper cover rotating shaft 2-2. The current sampling unit upper cover 2-1 is connected to the current sampling upper cover rotating shaft 2-2. During operation, the crimping bracket 1-1 can be rotated along the reel shaft 1-2, and the current sampling unit upper cover 2-1 can be rotated along the current sampling upper cover shaft 2-2. Open the crimping bracket 1-1 and the current sampling unit upper cover 2-1 to clamp the power information acquisition module to the cable L to be tested. Tighten the crimping bracket fixing member 1-3 to press the crimping bracket 1-1. And the current sampling unit upper cover 2-1 is fixed on the module base 6.

[0040] Referring to FIG. 3A, the power supply access and voltage sampling unit 1 further includes: a rotary crimping screw 1-4, a crimping block 1-5, a pin 1-6, and an insulating sleeve 1-7. Wherein, the rotary crimping screw 1-4 is connected to the crimping block 1-5, and the needle tip of the cymbal 1-6 is disposed corresponding to the insulating layer of the cable L to be tested, and the periphery of the tested cable L is absolutely Edge set 1-7. When working, rotate the crimping screw 1-4, push the crimping block 1-5 to squeeze the cable L to be tested, the needle

The tip of the 1- 6 is pierced through the insulating layer of the cable L to be tested and the conductive core M of the cable L to be tested, so that the signal in the cable L to be tested can be introduced into the power information collecting module. The power supply is also provided to the circuit board and the sampling chip of the power information acquisition module through the neutral signal connected from the zero line connection port 5 of the branch. The insulating sleeve 1-7 is an insulating flexible material. After being pressed against the cable L to be tested, it is closely adhered to the outer insulating layer of the tested cable L to provide safety protection and fixing. At the same time, the thimble 1-6 can be removed during disassembly. Eject the cable.

[0041] Referring to FIG. 3B, FIG. 3B is an enlarged structural view of the boring needle of FIG. 3A. The cymbals 1-6 can be disposed on the insulating sleeve 1-7, and the cymbals 1-6 can also be disposed at the crimping blocks 1-5. Upper, the thimbles 1-6 can also be disposed on the insulating sleeve 1-7 and the crimping blocks 1-5 at the same time. The 剌 1-6 is the tip mechanism of the power supply and voltage sampling unit 1 , and the 剌 1-6 is broken by an external force (for example, an external force applied by a rotary crimping screw 1-4, a spring, etc.) The insulating layer of the cable L to be tested, thereby causing the pin 1-6 to be in contact with the conductive core M of the cable L to be tested, the voltage of the cable L to be tested can be sampled, and the power on the cable L to be tested can also be used to collect power information. The module is powered.

Referring to FIG. 4, the current sampling unit 2 further includes: a magnetic core 2-3 that closes the magnetic circuit and a sampling chip 2-4. During operation, the magnetic core 2-3 in the current collecting unit 2 of the power information collecting module installed and fixed on the cable L to be tested forms a closed magnetic circuit, and the sampling chip 2-4 senses the cable to be tested through the magnetic core 2-3. The magnetic field change caused by the change of the L current realizes current sampling, that is, the magnetic core 2-3 of the closed magnetic circuit and the sampling chip 2-4 sense the magnetic field change caused by the change of the current of the measured cable L, thereby realizing current sampling.

[0043] After the current sampling unit 2 is connected to the cable L to be tested, the current signal sensed from the cable L to be tested is directly transmitted to the circuit board 4 for sampling operation, and the signal sensed after passing through the secondary current transformer is not required. Passed to the board 4 for acquisition operations.

[0044] A cable temperature detecting element 3 is mounted at the bottom of the insulating sleeve 1-7 for detecting the surface temperature of the cable.

[0045] The thimbles 1-6 are electrically conductive materials, and the remaining components that are in contact with the cable L to be tested (e.g., the crimping blocks 1-5, 剌 pins 1-7) are all insulating materials.

[0046] The power supply access and voltage sampling unit 1 and the current sampling unit 2 are both open-ended design, and the power supply access and voltage sampling unit 1, the current sampling unit 2 and the module base 6 complete the clamping of the cable L to be tested. Voltage sampling and current sampling upper cover part (ie, crimping bracket 1-1 and current sampling unit upper cover)

2- 1 ) Both can be rotated and opened. After opening, the power information acquisition module can be removed from the cable L to be tested.

[0047] The crimping block 1-5 extrudes the cable to connect the pin 1-6 through the cable insulation layer to the conductive core M, and the conductive pin 1-6 introduces a voltage signal into the module base as a power information acquisition module. Power supply and voltage Sampling signals, insulation sleeves 1-7 provide insulation protection and prevent the crimping screws 1-4 from loosening and disassembling to act as a dome.

[0048] The cable temperature detecting element 3 is mounted in the module base 6, and the cable temperature detecting element 3 and the cable L to be tested are isolated by the insulating sleeve 1-7, thereby ensuring that the cable temperature detecting element 3 can measure the cable L to be tested. The surface temperature is again insulated from the cable L under test. The cable temperature detecting element 3 transmits the detected cable temperature information to the circuit board 4 in the power information collecting module, thereby detecting whether the temperature of the cable under test L is within an allowable range.

[0049] When the power information collecting module is installed, the insulating sleeve 1-7 and the crimping block 1-5 which are in contact with the cable L to be tested are made of insulating and high-voltage resistant materials, and the live parts are provided by an insulating sleeve. 1-7 package, all parts in contact with the installer during installation are insulated from the cable L to be tested, so it can be installed with power, that is, during the process of installing the power information acquisition module, the branch circuit does not need to be powered off.

The above description is only illustrative of the specific embodiments of the present invention, and any equivalent changes and modifications made by those skilled in the art should be included in the present invention without departing from the spirit and scope of the invention. The scope of protection.

Claims

Claim

The integrated small intelligent power information collecting module is characterized in that: the power information collecting module comprises: a module base (6), a power access and a voltage sampling unit (1) disposed on the module base (6), And a circuit board (4) connected to the power supply access and voltage sampling unit (1), wherein the module base (6) and the power supply access and voltage sampling unit (1) jointly clamp the cable under test (L) so that the power information acquisition module is stuck on the cable under test (L),

The power supply access and voltage sampling unit (1) is used to sample the voltage of the cable under test (L).

The integrated small smart power information collecting module according to claim 1, wherein the power supply accessing and voltage sampling unit (1) pierces the insulating layer of the cable under test (L) through a pin structure. Thereby sampling the voltage of the conductive core (M) of the cable under test (L).

The integrated small smart power information collection module of claim 2, wherein the 剌 pin structure further comprises:

a pin (1-6) for piercing the insulation of the cable under test (L) to connect with the conductive core (M) of the cable under test (L);

A crimping block (1-5) for pressing the cymbal (1-6) to smash the cymbal (1-6) through the insulating layer of the cable under test (L).

The integrated small smart power information collection module of claim 3, wherein the 剌 pin structure further comprises:

Rotate the crimping screws (1-4) to push the crimping block (1-5) to squeeze the pin (1-6) through the insulation of the cable under test (L).

The integrated compact intelligent power information collecting module according to claim 3, wherein the cymbal (1-6) is disposed on the crimping block (1-5).

The integrated compact intelligent power information collecting module according to claim 3, wherein the crimping block (1-5) is made of an insulating material.

The integrated small-sized smart power information collection module of claim 3, wherein the power access and voltage sampling unit (1) further comprises:

An insulating sleeve (1-7), which is disposed with respect to the cable (L) to be tested, is used to prevent current leakage on the pin (1-6).

The integrated small smart power information collecting module according to claim 7, wherein the cymbal (1-6) is disposed on the insulating sleeve (1-7).

The integrated small-sized smart power information collecting module of claim 3, wherein the power information collecting module further comprises:

a branch neutral wiring port (5) connected to the circuit board (4), disposed at the module base

(6), used to access the branch neutral (Z) to supply power to the board (4) using the cable under test (L).

The integrated small smart power information collecting module of claim 1 , wherein the power information collecting module further comprises: being disposed on the module base (6) and connected to the circuit board (4) Current sampling unit (2), wherein

The current sampling unit (2) further includes a sampling chip (2-4) and a magnetic core (2-3) disposed around the tested cable (L) and having a magnetic circuit closed, the magnetic core (2-3) and the The sampling chip (2-4) senses the change of the magnetic field caused by the current change of the cable under test (L), thereby realizing current sampling.

The integrated small smart power information collecting module according to claim 10, wherein the power access and voltage sampling unit (1) and the current sampling unit (2) are both connected to the module base ( 6) Form an open structure to clamp the power information acquisition module to the cable under test (L) or to remove it from the cable under test (L).

The integrated small smart power information collection module of claim 11, wherein the power access and voltage sampling unit (1) further comprises:

a crimping bracket rotating shaft (1-2) is disposed on the module base (6);

a crimping bracket (1-1) connected to the crimping shaft (1-2) for opening with the pressing shaft (1-2) as a rotating shaft for clamping the cable under test (L) ) ; as well as

a rotary crimping bracket fixing member (1-3) for fixing the movable end of the crimping bracket (1-1) to the module base (6) for clamping the cable to be tested (L) .

The integrated small smart power information collecting module according to claim 12, wherein the current sampling unit (2) further comprises:

The current sampling upper cover shaft (2-2) is disposed on the module base (6); and the current sampling unit upper cover (2-1) is connected to the current sampling upper cover rotating shaft (2-2), Opening the rotating shaft (2-2) with the current sampling upper cover shaft to clamp the cable under test (L), The crimping bracket (1-1) is further configured to press the current sampling unit upper cover (2-1) to fix the movable end of the current sampling unit upper cover (2-1) to the module. On the base (6), so that the current sampling unit (2) holds the cable under test (L).

The integrated small-sized smart power information collecting module of claim 1 , wherein the power information collecting module further comprises:

A cable temperature detecting element (3) connected to the circuit board (4) is provided at the bottom of the cable (L) to be used to detect the surface temperature of the cable under test (L).