CN217882410U

CN217882410U - Power capacitor temperature autonomous protection structure

Info

Publication number: CN217882410U
Application number: CN202221931335.1U
Authority: CN
Inventors: 孙乙富; 李瑞华; 蒋更宏; 刘畅
Original assignee: Chongqing Lzs Technology Co ltd
Current assignee: Chongqing Lzs Technology Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-11-22
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses a power capacitor temperature is protection architecture independently, including regulator cubicle, mounting panel and first mounting bracket, install the mount pad on the bottom inner wall of regulator cubicle, the power capacitor body is installed at the top of mount pad, the internally mounted of regulator cubicle has the mounting panel, the internally mounted of regulator cubicle has first mounting bracket, and the top that is located the mounting panel of first mounting bracket, the internally mounted of regulator cubicle has the second mounting bracket, the internally mounted of third mounting bracket has thing networking computing unit. The utility model discloses a built-in pressure sensitive switch in the device, thermal switch, external temperature sensor establishes ties pressure sensitive switch return circuit, thermal switch return circuit, temperature sensor control circuit, contactor main coil at same circuit, and wherein when power capacitor top gas pressure surpasses the time limit, pressure sensitive switch's normally closed contact becomes normally to open and makes the return circuit disconnection, and the condenser obtains the protection.

Description

Power capacitor temperature autonomous protection structure

Technical Field

The utility model relates to a power capacitor protects technical field, specifically is a power capacitor temperature is protection architecture independently.

Background

At present, in the conventional power capacitor temperature protection technology, a conventional temperature switch is a thermal switch using a bimetallic strip as a temperature sensing element, when an electric appliance normally works, the bimetallic strip is in a free state, a contact is in a closed/open state, when the temperature rises to an action temperature value, the bimetallic element is heated to generate internal stress to act, so that a thermal protection effect is achieved, but when gas generated by attenuation of a capacity value at high temperature is accumulated at the top of a capacitor, the pressure intensity is continuously increased under long-term high-temperature accumulation, a cutting threshold of the temperature switch is not reached, the temperature switch needs time to be heated and conducted, and the mechanical action speed of the switch is relatively slow; in this condition the capacitor is very susceptible to explosion and the capacitor has been irreversibly damaged, so that conventional temperature protection is not as great.

The existing power capacitor temperature autonomous protection structure has the following defects:

1. the patent CN208460562U discloses a capacitor protection device, "which includes a capacitor protection body, a support frame is fixed on the front end face of the capacitor protection body, and the support frame is symmetrical about the vertical center line of the capacitor protection body, a connection sleeve is arranged between adjacent support frames, one end of the connection sleeve is provided with a connection rod, the connection position of the connection rod and the support frame is connected with a fastening screw, the other end of the connection sleeve is provided with a protection cover, the bottom end of the protection cover is provided with a fixing plate, and the connection position of the fixing plate and the capacitor protection body is connected with a fastening screw; the utility model discloses a setting of visor can be protected display screen and operation button, thereby avoids the utility model discloses in the use, dust and debris adsorb on display screen and operation button, it is right the utility model discloses cause the damage, through the setting of support frame, adapter sleeve and connecting rod, make the utility model discloses can rotate and lift, when making it operate the button, convenient and fast, "with the utility model discloses compare, this protection device can't monitor condenser external environment, nevertheless in case condenser external environment temperature acutely changes suddenly, for example when other components and parts are exploded or produce the naked light, the inside unable monitoring of violent high temperature capacitor in outside appears, just can't amputate the condenser fast, easily makes the condenser destroy and takes place bigger accident.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power capacitor temperature is protection architecture independently to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a power capacitor temperature autonomous protection structure comprises an electrical cabinet, a mounting plate and a first mounting frame, wherein the mounting plate is mounted on the inner wall of the bottom of the electrical cabinet, a power capacitor body is mounted at the top of the mounting plate, the mounting plate is mounted inside the electrical cabinet, the first mounting frame is mounted inside the electrical cabinet and positioned above the mounting plate, a second mounting frame is mounted inside the electrical cabinet and positioned above the first mounting frame;

the electric cabinet is characterized in that a third mounting rack is arranged inside the electric cabinet, and an internet of things computing unit is arranged inside the third mounting rack.

Preferably, a cabinet door is movably mounted on the front surface of the electrical cabinet, a switch handle is mounted on the front surface of the cabinet door, and a controller is mounted on the inner wall of the back surface of the cabinet door.

Preferably, a thermal switch is mounted on the top of the power capacitor body, a detection end of the thermal switch is located inside the power capacitor body, a pressure sensitive switch is mounted on the top of the power capacitor body, and a detection end of the pressure sensitive switch is located inside the power capacitor body

Preferably, a temperature sensor is mounted at the bottom of the mounting plate.

Preferably, the contactor is mounted on the front surface of the first mounting frame.

Preferably, a circuit breaker is mounted on the front surface of the second mounting frame.

Preferably, a fling-cut switch is installed on the front face of the third mounting rack.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a built-in pressure sensitive switch in power capacitor, the thermal switch, at the external temperature sensor in power capacitor top, these 3 independent monitoring sources add the control source, with the pressure sensitive switch return circuit, the thermal switch return circuit, temperature sensor control circuit, contactor main coil establishes ties at same circuit, wherein when power capacitor top gas pressure exceedes the time limit, the normally closed contact of pressure sensitive switch becomes normally open and makes the return circuit disconnection, the condenser obtains the protection, when the temperature that the thermal switch will detect was too high simultaneously, the normally closed contact of thermal switch becomes normally open and makes the return circuit disconnection, the condenser obtains the protection.

2. The utility model discloses well external temperature sensor real-time supervision condenser external environment temperature and judge data synchronous transmission thing networking edge calculation unit, send signal for the controller after transfiniting, the contactor is disconnected immediately to the controller makes the return circuit disconnection, the condenser obtains the protection, and implant thing networking edge calculation unit with the online appearance value monitoring technology of the condenser in high in the clouds, and "early warning", in order to ensure the safety of condenser in full life cycle operation, in addition, to temperature and the running state of customer accessible cell-phone APP and computer end real time monitoring condenser in the operation process, can foresee the emergence of accident in advance.

Drawings

Fig. 1 is a perspective view of an electrical cabinet of the present invention;

fig. 2 is a cross-sectional view of the electrical cabinet of the present invention;

fig. 3 is a schematic structural view of the power capacitor body of the present invention;

fig. 4 is the utility model discloses a thing networking computing unit structure schematic diagram.

In the figure: 1. an electrical cabinet; 101. a cabinet door; 102. a switch handle; 103. a controller; 2. a mounting seat; 201. a power capacitor body; 202. a pressure sensitive switch; 203. a thermal switch; 3. mounting a plate; 301. a temperature sensor; 4. a first mounting bracket; 401. a contactor; 5. a second mounting bracket; 501. a circuit breaker; 6. a third mounting bracket; 601. switching a switch; 602. and the Internet of things computing unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides an embodiment: a power capacitor temperature autonomous protection structure;

the electric cabinet comprises an electric cabinet 1, a mounting seat 2, a mounting plate 3, a first mounting frame 4 and a second mounting frame 5, wherein the mounting seat 2 is installed on the inner wall of the bottom of the electric cabinet 1, a cabinet door 101 is movably installed on the front surface of the electric cabinet 1, a switch handle 102 is installed on the front surface of the cabinet door 101, a controller 103 is installed on the inner wall of the back surface of the cabinet door 101, a power capacitor body 201 is installed on the top of the mounting seat 2, a pressure sensitive switch 202 is installed on the top of the power capacitor body 201, a thermal sensitive switch 203 is installed on the top of the power capacitor body 201, the detection end of the thermal sensitive switch 203 is positioned inside the power capacitor body 201, the mounting plate 3 is installed inside the electric cabinet 1, a temperature sensor 301 is installed at the bottom of the mounting plate 3, the first mounting frame 4 is installed inside the electric cabinet 1, the first mounting frame 4 is positioned above the mounting frame 3, a contactor 401 is installed on the front surface of the first mounting frame 4, the second mounting frame 5 is installed inside the electric cabinet 1, the second mounting rack 5 is positioned above the first mounting rack 4, the front side of the second mounting rack 5 is provided with a circuit breaker 501, the electrical cabinet 1 provides mounting positions for the power capacitor body 201 and the protection structure so that the electrical cabinet can be mounted, the cabinet door 101 is used for opening or closing the front side of the electrical cabinet 1, the switch handle 102 provides a position for opening the cabinet door 101, the controller 103 can control the contactor 401 to be disconnected, the mounting seat 2 provides a mounting position for the power capacitor body 201 so that the electrical cabinet can be mounted, meanwhile, the mounting seat 2 can be provided with a plurality of power capacitor bodies 201 in parallel so that the protection structure can protect a group of power capacitor bodies 201, the power capacitor bodies 201 are used for capacitors of electrical power systems and electrical engineering equipment, under a long-term severe operating environment, the internal capacity of the power capacitor bodies 201 volatilizes to generate a large amount of gas to be accumulated on the top, after the pressure sensitive switch 202 at the top of the power capacitor body 201 detects that the gas pressure exceeds the limit, the internal normally closed switch is normally opened, so that the circuit is disconnected, the capacitor is protected, the power capacitor generates heat in the capacity of the power capacitor under the long-term high and overload operating environment, the temperature sensitive switch 203 beside the capacity of the power capacitor body 201 detects that the temperature exceeds the limit, the internal normally closed switch is normally opened, so that the circuit is disconnected, the mounting plate 3 provides a mounting position for the temperature sensor 301, the temperature sensor 301 monitors the external environment temperature of the capacitor in real time and judges data synchronous transmission internet of things computing unit 602 through RS485 serial port communication, after the temperature exceeds the limit, a signal is sent to the controller 103, the controller 103 immediately disconnects the contactor 401 so that the circuit is disconnected, the capacitor is protected, the first mounting rack 4 provides a mounting position for the contactor 401, the contactor 401 is used for disconnecting the circuit, the second mounting rack 5 provides a mounting position for the circuit breaker 501, so that the circuit can be mounted, and the circuit breaker 501 plays a circuit cutting-off role.

Referring to fig. 4, the present invention provides an embodiment: a power capacitor temperature autonomous protection structure;

including third mounting bracket 6, the internally mounted of regulator cubicle 1 has third mounting bracket 6, the internally mounted of third mounting bracket 6 has thing networking computational unit 602, fling-cut switch 601 is installed in the front of third mounting bracket 6, third mounting bracket 6 provides the mounted position for thing networking computational unit 602 and fling-cut switch 601, make it can install, implant thing networking computational unit 602 with the online volume value monitoring technology of the condenser in high in the clouds, and carry out "early warning", in order to ensure the safety of condenser in full life cycle operation, in addition, to temperature and the running state of customer accessible cell-phone APP and computer end real time monitoring condenser in the operation process, can foresee the emergence of accident in advance.

The working principle is as follows: before the power capacitor temperature autonomous protection structure is used, whether the power capacitor temperature autonomous protection structure affects use or not is checked, firstly, the power capacitor temperature autonomous protection structure is installed on an electrical cabinet 1, a pressure-sensitive switch 202 normally closed electric contact, a thermal sensitive switch 203 normally closed electric contact, a temperature sensor 301 control loop and a contactor 401 main coil are connected in series on the same circuit, if gas is accumulated on the top of a power capacitor body 201 and pressure is gradually increased due to heating, the pressure-sensitive switch 202 is gradually pressed to an out-of-limit state and then is disconnected, a measuring end of an internal thermal sensitive switch 203 is placed on a power capacitor capacity side, when the internal capacity temperature is heated to the out-of-limit state, the circuit is disconnected, an external temperature sensor 301 monitors external environment temperature, temperature data are transmitted to an internet of things computing unit 602 through RS485 serial port communication transmission to be subjected to computing processing, a control signal is sent to a controller 103 after the out-of-limit state, the controller 103 immediately disconnects the contactor 401 to enable the circuit to be disconnected, an on-line capacity value monitoring technology of the capacitor is implanted into the computing unit 602, the internet of things, the practical problem of remote operation maintenance is solved, and the safety of the capacitor in the full-life cycle operation is realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claim concerned.

Claims

1. The utility model provides a power capacitor temperature is protection architecture independently, includes regulator cubicle (1), mounting panel (3) and first mounting bracket (4), its characterized in that: the mounting seat (2) is mounted on the inner wall of the bottom of the electrical cabinet (1), the power capacitor body (201) is mounted at the top of the mounting seat (2), the mounting plate (3) is mounted inside the electrical cabinet (1), the first mounting frame (4) is located above the mounting plate (3), the second mounting frame (5) is mounted inside the electrical cabinet (1), and the second mounting frame (5) is located above the first mounting frame (4);

the electric cabinet is characterized in that a third mounting frame (6) is mounted inside the electric cabinet (1), and an internet of things computing unit (602) is mounted inside the third mounting frame (6).

2. A power capacitor temperature autonomous protection architecture according to claim 1, characterized in that: a cabinet door (101) is movably mounted on the front face of the electric cabinet (1), a switch handle (102) is mounted on the front face of the cabinet door (101), and a controller (103) is mounted on the inner wall of the back face of the cabinet door (101).

3. A power capacitor temperature autonomous protection architecture as claimed in claim 1, characterized in that: the top of the power capacitor body (201) is provided with a thermal switch (203), the detection end of the thermal switch (203) is positioned inside the power capacitor body (201), the top of the power capacitor body (201) is provided with a pressure sensitive switch (202), and the detection end of the pressure sensitive switch (202) is positioned inside the power capacitor body (201).

4. A power capacitor temperature autonomous protection architecture as claimed in claim 1, characterized in that: and a temperature sensor (301) is arranged at the bottom of the mounting plate (3).

5. A power capacitor temperature autonomous protection architecture as claimed in claim 1, characterized in that: the front surface of the first mounting frame (4) is provided with a contactor (401).

6. A power capacitor temperature autonomous protection architecture according to claim 1, characterized in that: and a breaker (501) is arranged on the front surface of the second mounting frame (5).

7. A power capacitor temperature autonomous protection architecture according to claim 1, characterized in that: the switching switch (601) is installed on the front face of the third installation rack (6).