Contact pin breakage protection type compensation capacitor

Abstract

The invention discloses a contact pin breakage protection type compensation capacitor, belongs to the technical field of capacitors, and aims to solve the problems that a groove notch is formed in one side of the middle part of a contact pin, so that the mechanical strength is weakened, the contact pin is easily broken accidentally when the contact pin is collided by the outside in the transportation or taking and placing process, and the capacitor is damaged. Comprising a shell structure, a capacitor body, a connecting structure and a cover plate structure, the capacitor body is arranged in the shell structure, the connecting structure is arranged above the shell structure, the cover plate structure is arranged above the capacitor body, a partition plate is fixedly connected to the lower middle portion of the inner wall of an outer shell, and a heat dissipation cavity is arranged below the partition plate; through the cover plate structure, the contact pins of the capacitor body can be protected, the phenomenon that the contact pins are exposed and are collided by the outside in the transportation process, and the capacitor is easily damaged is avoided, and the safety of the capacitor is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of capacitors, and particularly relates to a pin-breaking protection type compensation capacitor. Background Art

[0002] A compensation capacitor, also known as a shunt capacitor, is an important device used in power systems to improve the power factor, improve the power quality, and reduce line losses. It provides reactive power to the power grid to compensate for the reactive power consumed by inductive loads (such as motors, transformers, etc.), thereby improving the overall efficiency of the system.

[0003] In the prior art, there is a pin-breaking protection type compensation capacitor with a patent publication number of CN205508629U. In the upward opening of the open rivet, an electrode pin is vertically inserted. The bottom end of the electrode pin is welded and fixed to the opening at the bottom end of the open rivet. A groove notch is made on one side surface in the middle of the electrode pin. Moreover, the depth of the right-angle notch is one-third of the diameter D of the electrode pin, changing the force-bearing structure of the electrode pin. When the capacitor is damaged and expands, the electrode pin is broken at the groove, realizing the structure of the compensation capacitor that quickly opens the circuit after the component is damaged, and improving the safety of the overall circuit. However, there are still the following deficiencies in actual use: Practically speaking, the electrode pins of this capacitor are exposed. Since there is a groove notch on one side of the middle of the pin, the mechanical strength is weakened. When it is collided by the outside during transportation or picking and placing, the pin is easily broken accidentally, thus damaging the capacitor. Moreover, the heat dissipation effect of this compensation capacitor is not good, and there is a risk of high-temperature failure.

[0004] Therefore, there is a need for a pin-breaking protection type compensation capacitor to solve the problem in the prior art that the mechanical strength is weakened due to the groove notch on one side of the middle of the pin, and when it is collided by the outside during transportation or picking and placing, the pin is easily broken accidentally, thus damaging the capacitor. Summary of the Invention

[0005] The purpose of the present invention is to provide a pin-breaking protection type compensation capacitor to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A pin-breaking protection type compensation capacitor includes a housing structure, a capacitor body, a connection structure, and a cover structure. The capacitor body is arranged inside the housing structure, the connection structure is arranged above the housing structure, and the cover structure is arranged above the capacitor body.

[0007] The housing structure consists of an outer housing, a partition board, a heat dissipation cavity, and a radiator. The partition board is fixedly connected to the lower middle part of the inner wall of the outer housing, and the heat dissipation cavity is arranged below the partition board.

[0008] It should be noted in the solution that the radiator is installed inside the heat dissipation cavity, and heat dissipation through grooves are evenly formed on the inner wall of the outer housing.

[0009] Furthermore, it is worth noting that the connection structure is composed of a mounting frame, a spring, a push-pull plate, a connecting plate and a first limiting block. A circular groove is formed above the outer housing, the mounting frame is fixedly connected above the circular groove, and one side of the mounting frame is open. The spring is fixedly connected inside the mounting frame, the connecting plate is fixedly connected to the other end of the spring, and the connecting plate is arranged inside the mounting frame.

[0010] Moreover, it should be noted that the push-pull plate is fixedly connected to the middle of the upper part of the connecting plate, the first limiting block is fixedly connected to the side of the connecting plate away from the spring, and the first limiting block is fixedly connected to the lower part of the push-pull plate.

[0011] As a preferred implementation manner, the number of the connection structures is four groups, which are symmetrically arranged at the center.

[0012] As a preferred implementation manner, the cover plate structure is composed of a cover plate, a disc and a second limiting block. A pin slot adapted to the pins of the capacitor body is formed inside the cover plate. The disc is fixedly connected to the lower part of the outer surface of the cover plate, and the shape of the disc is adapted to the circular groove at the top of the outer housing. The disc is symmetrically provided with grooves, and the second limiting block is fixedly connected to the lower part of the disc.

[0013] Compared with the prior art, a pin-breaking protection type compensating capacitor provided by the present invention has at least the following beneficial effects:

[0014] (1) By providing the cover plate structure, the pins of the capacitor body can be protected, preventing the pins from being exposed outside and being collided by the outside during transportation, which easily leads to the phenomenon of capacitor damage, improving the safety of the capacitor. Moreover, the cover plate can be quickly disassembled and assembled, without affecting the connection and use of the capacitor body and the pins, improving the practicability and use flexibility of the capacitor.

[0015] (2) By providing the heat dissipation through grooves and the radiator, heat can be directly discharged upward, taking away the heat on the outer surface of the capacitor body on the way, making the heat dissipation more uniform, improving the heat dissipation effect of the capacitor body, and further prolonging the service life of the capacitor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram before installation of the present invention;

[0017] Figure 2 is an internal structural schematic diagram of the cover plate structure of the present invention;

[0018] Figure 3 Schematic diagram of the internal structure after installation of the present invention;

[0019] Figure 4 Schematic diagram of the split structure of the connection structure of the present invention.

[0020] In the figure: 1. Housing structure; 2. Capacitor body; 3. Connection structure; 4. Cover plate structure; 101. Outer housing; 102. Partition; 103. Heat dissipation cavity; 104. Radiator; 105. Heat dissipation through groove; 301. Installation frame; 302. Spring; 303. Push-pull plate; 304. Connection plate; 305. First limit block; 401. Cover plate; 402. Pin slot; 403. Disc; 404. Groove; 405. Second limit block. Detailed implementation manners

[0021] The present invention will be further described below in conjunction with embodiments.

[0022] Please refer to Figures 1 - 4 , the present invention provides a pin-breaking protection type compensating capacitor, including a housing structure 1, a capacitor body 2, a connection structure 3 and a cover plate structure 4. The capacitor body 2 is arranged inside the housing structure 1, the connection structure 3 is arranged above the housing structure 1, and the cover plate structure 4 is arranged above the capacitor body 2.

[0023] The housing structure 1 is composed of an outer housing 101, a partition 102, a heat dissipation cavity 103 and a radiator 104. The partition 102 is fixedly connected to the middle and lower part of the inner wall of the outer housing 101, and the heat dissipation cavity 103 is arranged below the partition 102.

[0024] Furthermore, as shown in Figure 1 , Figure 2 and Figure 3 , it is specifically noted that the radiator 104 is installed inside the heat dissipation cavity 103, and heat dissipation through grooves 105 are evenly arranged on the inner wall of the outer housing 101;

[0025] The heat dissipation through grooves 105 are opened from the bottom of the outer housing 101 to the top of the outer housing 101, and heat can be directly discharged upward through the heat dissipation through grooves 105, taking away the heat of the capacitor body 2 along the way, improving the heat dissipation effect of the device; the radiator 104 includes a fan and a conical air diffuser plate arranged upward, and the air generated by the fan is blown upward to the outside of the capacitor body 2 through the air diffuser plate to dissipate heat from the capacitor body 2.

[0026] According to the above working process, it can be known that: by arranging the heat dissipation through grooves 105 and the radiator 104, heat can be directly discharged upward, taking away the heat on the outer surface of the capacitor body 2 on the way, making the heat dissipation more uniform, improving the heat dissipation effect of the capacitor body 2, and further improving the service life of the capacitor body 2.

[0027] Furthermore, as shown in Figure 1 , Figure 2 and Figure 4 , it is worth specifically stating that the connection structure 3 is composed of a mounting frame 301, a spring 302, a push-pull plate 303, a connecting plate 304, and a first limiting block 305. A circular groove is opened above the outer shell 101. The mounting frame 301 is fixedly connected above the circular groove, and one side of the mounting frame 301 is open. The spring 302 is fixedly connected inside the mounting frame 301. The connecting plate 304 is fixedly connected to the other end of the spring 302, and the connecting plate 304 is arranged inside the mounting frame 301;

[0028] When the cover plate 401 is installed above the capacitor body 2, the elastic action of the provided spring 302 can drive the connecting plate 304 to reset. By inserting the push-pull plate 303 and the first limiting block 305 into one side of the second limiting block 405, the cover plate 401 is fixed to ensure that the cover plate 401 will not be randomly bumped open.

[0029] Furthermore, as shown in Figure 1 , Figure 2 and Figure 4 , it is worth specifically stating that the push-pull plate 303 is fixedly connected to the middle of the upper part of the connecting plate 304. The first limiting block 305 is fixedly connected to the side of the connecting plate 304 away from the spring 302, and the first limiting block 305 is fixedly connected to the lower part of the push-pull plate 303. The number of the connection structures 3 is four groups, which are symmetrically arranged at the center;

[0030] By providing four groups of connection structures 3, the cover plate 401 can be stably fixed, preventing the cover plate structure 4 from being opened by accidentally touching one of the connection structures 3 and reducing accidental risks.

[0031] Furthermore, as shown in Figure 1 , Figure 2 and Figure 3 , it is worth specifically stating that the cover plate structure 4 is composed of a cover plate 401, a disc 403, and a second limiting block 405. A pin slot 402 adapted to the pins of the capacitor body 2 is opened inside the cover plate 401. The disc 403 is fixedly connected to the lower part of the outer surface of the cover plate 401, and the shape of the disc 403 is adapted to the circular groove at the top of the outer shell 101. The disc 403 is symmetrically provided with grooves 404. The second limiting block 405 is fixedly connected to the lower part of the disc 403;

[0032] The provided pin slot 402 can accommodate the pins of the capacitor body 2, and then the cover plate 401 protects it, improving the safety performance of the device. The first limiting block 305 and the second limiting block 405 can be mutually clamped.

[0033] This solution has the following working process: When in use, place the capacitor body 2 above the partition plate 102, and dissipate heat from the capacitor body 2 through the radiator 104. The heat is discharged upward through the heat dissipation through groove 105, taking away the heat on the surface of the capacitor body 2 on the way, improving the heat dissipation effect of the device; then align the pin slot 402 with the pins of the capacitor body 2, insert the cover plate 401 above the capacitor body 2, and then pull the push-pull plate 303 outward to drive the connecting plate 304 and the first limit block 305 to move, avoiding blocking the insertion of the cover plate 401. After the insertion is completed, release the push-pull plate 303. Under the elastic action of the spring 302, the connecting plate 304 driven returns to its original position, so that the second limit block 405 is engaged with the first limit block 305 to fix the position of the cover plate 401 and protect the pins of the capacitor body 2.

[0034] In summary: Through the provided cover plate structure 4, the pins of the capacitor body 2 can be protected, preventing the pins from being exposed and being collided by the outside world during transportation, which is likely to cause damage to the capacitor. This improves the safety of the capacitor body 2. Moreover, the cover plate 401 can be quickly disassembled and assembled without affecting the connection and use of the capacitor body 2 and the pins, improving the practicality and flexibility of use of the capacitor; through the provided heat dissipation through groove 105 and radiator 104, the heat can be directly discharged upward, taking away the heat on the outer surface of the capacitor body 2 on the way, making the heat dissipation more uniform, improving the heat dissipation effect of the capacitor body 2, and further increasing the service life of the capacitor body 2.

Claims

1. A pin-breaking protection type compensating capacitor, comprising a housing structure (1), a capacitor body (2), a connection structure (3) and a cover plate structure (4), characterized in that: The capacitor body (2) is arranged inside the housing structure (1), the connection structure (3) is arranged above the housing structure (1), and the cover plate structure (4) is arranged above the capacitor body (2). The housing structure (1) is composed of an outer housing (101), a partition (102), a heat dissipation cavity (103) and a radiator (104). The partition (102) is fixedly connected to the middle and lower part of the inner wall of the outer housing (101), and the heat dissipation cavity (103) is arranged below the partition (102).

2. The pin-breaking protection type compensating capacitor according to claim 1, wherein: The radiator (104) is installed inside the heat dissipation cavity (103), and heat dissipation through slots (105) are evenly arranged on the inner wall of the outer housing (101).

3. The pin-breaking protection type compensating capacitor according to claim 2, characterized in that: The radiator (104) is composed of a blower and a conical air diffuser plate arranged upward.

4. The pin-breaking protection type compensating capacitor according to claim 3, wherein: The connection structure (3) is composed of a mounting frame (301), a spring (302), a push-pull plate (303), a connecting plate (304) and a first limiting block (305). A circular groove is arranged above the outer housing (101), the mounting frame (301) is fixedly connected above the circular groove, and one side of the mounting frame (301) is open. The spring (302) is fixedly connected inside the mounting frame (301), the connecting plate (304) is fixedly connected to the other end of the spring (302), and the connecting plate (304) is arranged inside the mounting frame (301).

5. The pin-breaking protection type compensating capacitor according to claim 4, characterized in that: The push-pull plate (303) is fixedly connected to the middle of the upper part of the connecting plate (304), the first limiting block (305) is fixedly connected to the side of the connecting plate (304) away from the spring (302), and the first limiting block (305) is fixedly connected below the push-pull plate (303).

6. The pin-breaking protection type compensating capacitor according to claim 5, characterized in that: The number of the connection structures (3) is four groups, which are symmetrically arranged at the center.

7. The pin-breaking protection type compensating capacitor according to claim 6, characterized in that: The cover plate structure (4) is composed of a cover plate (401), a disc (403) and a second limiting block (405). A pin slot (402) adapted to the pins of the capacitor body (2) is arranged inside the cover plate (401), and the disc (403) is fixedly connected to the lower part of the outer surface of the cover plate (401).

8. The pin-breaking protection type compensating capacitor according to claim 7, characterized in that: The shape of the disc (403) is adapted to the circular groove at the top of the outer housing (101), grooves (404) are symmetrically arranged on the disc (403), and the second limiting block (405) is fixedly connected to the lower part of the disc (403).

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