High-temperature-resistant capacitor wiring terminal

Abstract

The utility model discloses a high temperature resistant capacitor wiring terminal comprising a connecting column, the connecting column is connected with a wiring module group and a connecting module group, the connecting column is connected with a capacitor through the connecting module group, the connecting module group comprises a ceramic ring, the ceramic ring is provided with a connecting hole and is connected with the connecting column through the connecting hole, and the ceramic ring comprises an explosion-proof part and a connecting part. The end face, close to the connecting part, of the anti-explosion part is provided with an annular pressure relief groove, the outer side of the anti-explosion part is provided with a pressure relief opening corresponding to the pressure relief groove, the connecting part is provided with a connecting groove formed in the length direction of the connecting column, and the two ends of the connecting groove are connected with the pressure relief groove and the outside respectively. And therefore, meltdown can be effectively avoided in the use process of the high-power capacitor.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a high temperature resistant capacitor terminal. Background Art

[0002] As the main component of the capacitor, the capacitor terminal is used for external circuits. In most capacitors, the capacitor terminal is generally located at the upper end of the capacitor and arranged according to the requirements of the capacitor.

[0003] Traditional capacitor terminals are generally made of bakelite / plastic materials and are directly connected to the shell through a connecting post, so that one end of the connecting post is inserted into the shell to complete the connection. When the capacitor power is large, the temperature of the connecting post will rise sharply, which may easily lead to melting between the connecting post and other external connectors. Therefore, there is room for improvement. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a high temperature resistant capacitor terminal to adapt to the use of high power capacitors and avoid melting.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high temperature resistant capacitor terminal comprises a connecting column, a connecting module and a connecting module are connected to the connecting column, and the connecting column is connected to the capacitor through the connecting module;

[0007] The connecting module includes a ceramic ring, which is provided with a connecting hole and is connected to a connecting column through the connecting hole. The ceramic ring includes an explosion-proof part and a connecting part. The end face of the explosion-proof part close to the connecting part is provided with an annular pressure relief groove, and a pressure relief port is provided on the outer side of the explosion-proof part corresponding to the pressure relief groove. The connecting part is provided with a connecting groove arranged along the length direction of the connecting column, and the two ends of the connecting groove are respectively connected to the pressure relief groove and the outside.

[0008] As a further improvement of the present invention, the connecting groove is an arc-shaped groove arranged around the axis of the connecting part.

[0009] As a further improvement of the utility model, the wiring module includes an upper clamp and a lower clamp, each of which is provided with a mounting hole and is slidably connected to a connecting column through the mounting hole, and a first nut is connected to the connecting column, and the first nut is used to drive the upper clamp and the lower clamp closer to each other to complete the clamping action.

[0010] As a further improvement of the utility model, a second nut is also provided on the connecting column, and the first nut and the second nut are respectively arranged corresponding to the two sides where the upper clip and the lower clip are separated from each other to adjust the positions of the upper clip and the lower clip on the connecting column.

[0011] As a further improvement of the present invention, the second nut is arranged close to the connecting module, and a spring washer is provided between the first nut and the upper clamping piece.

[0012] As a further improvement of the utility model, a first gasket is provided between the spring washer and the upper clamping piece.

[0013] As a further improvement of the utility model, a first clamping jaw and a second clamping jaw are respectively provided on both sides of the upper clamping piece and the lower clamping piece, and the first clamping jaw and the second clamping jaw are offset from each other and bent in the direction in which the upper clamping piece and the lower clamping piece approach each other.

[0014] As a further improvement of the present invention, a second gasket is provided on the side of the second nut close to the explosion-proof portion.

[0015] As a further improvement of the present invention, a groove is provided at the end of the explosion-proof portion corresponding to the second gasket, and the groove is used to accommodate the second gasket.

[0016] Beneficial effects of the utility model:

[0017] 1. The ceramic ring can be used to separate the connection column and the capacitor, thereby effectively avoiding melting during the use of high-power capacitors.

[0018] 2. The pressure relief inside the capacitor can be achieved by setting the pressure relief groove, the pressure relief port and the connection groove. At the same time, the setting of the pressure relief groove and the pressure relief port can reduce additional external interference to the capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall installation of the utility model;

[0020] Figure 2 It is a schematic cross-sectional diagram of the overall installation of the utility model.

[0021] Figure numerals: 1. connecting column; 2. ceramic ring; 3. connecting hole; 4. explosion-proof part; 5. connecting part; 6. pressure relief groove; 7. pressure relief port; 8. connecting groove; 9. upper clamp; 10. lower clamp; 11. mounting hole; 12. first nut; 13. second nut; 14. spring washer; 15. first gasket; 16. first jaw; 17. second jaw; 18. second gasket; 19. groove. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same components are indicated by the same reference numerals.

[0023] like Figure 1-2As shown, a high temperature resistant capacitor terminal comprises a connecting column 1, to which a wiring module and a connecting module are connected, an external circuit is connected to the connecting column 1 through the wiring module, and the connecting column 1 is connected to the capacitor through the connecting module.

[0024] Preferably, the connecting module includes a ceramic ring 2, which is provided with a connecting hole 3 and is connected to the connecting column 1 through the connecting hole 3. The ceramic ring 2 includes an explosion-proof part 4 and a connecting part 5. The end face of the explosion-proof part 4 close to the connecting part 5 is provided with an annular pressure relief groove 6, and a pressure relief port 7 is provided on the outer side of the explosion-proof part 4 corresponding to the pressure relief groove 6. The connecting part 5 is provided with a connecting groove 8 arranged along the length direction of the connecting column 1, and the two ends of the connecting groove 8 are respectively connected to the pressure relief groove 6 and the outside world.

[0025] When in use, the high temperature resistance of the ceramic ring 2 itself can achieve separation between the connecting column 1 and the capacitor, thereby preventing the connecting column 1 from melting with the outside when used at high power. At the same time, the ceramic material can also achieve an insulating effect to improve safety of use.

[0026] When the capacitor is used at high power, the internal temperature of the capacitor rises, which will cause the internal pressure of the capacitor to increase. At this time, the pressure relief effect can be achieved through the connecting groove 8, the pressure relief groove 6 and the pressure relief port 7 to adapt to the use of high-power capacitors.

[0027] In this embodiment, the connection groove 8 is a straight groove arranged parallel to the axis of the connection column 1 . In another embodiment, the connection groove 8 is an arc groove arranged around the axis of the connection part 5 .

[0028] The straight groove method can reduce the difficulty of processing, while the arc groove setting can further reduce the risk of external dust and the like entering the interior of the capacitor.

[0029] Preferably, the wiring module includes an upper clamp 9 and a lower clamp 10, both of which are provided with a mounting hole 11 and are slidably connected to a connecting column 1 through the mounting hole 11, and a first nut 12 is connected to the connecting column 1, and the first nut 12 is used to drive the upper clamp 9 and the lower clamp 10 to approach each other to complete the clamping action.

[0030] The first nut 12 is provided to limit the positions of the upper clamping piece 9 and the lower clamping piece 10, thereby ensuring a stable clamping connection.

[0031] Preferably, a second nut 13 is also provided on the connecting column 1 , and the first nut 12 and the second nut 13 are respectively arranged corresponding to the two sides where the upper clip 9 and the lower clip 10 are separated from each other, so as to adjust the positions of the upper clip 9 and the lower clip 10 on the connecting column 1 .

[0032] By adjusting the positions of the upper clamping piece 9 and the lower clamping piece 10 , the position of the connection point between the external circuit and the connection column 1 can be adjusted to meet the installation requirements of different positions.

[0033] Specifically, the first nut 12 and the second nut 13 are both threadedly connected to the connecting column 1 .

[0034] Preferably, the second nut 13 is arranged close to the connecting module, and a spring washer 14 is provided between the first nut 12 and the upper clamping piece 9 .

[0035] The provision of the spring washer 14 can effectively improve the stability of the upper clamping piece 9 and the lower clamping piece 10 during clamping, so as to adapt to use in a vibrating environment.

[0036] Preferably, a first gasket 15 is provided between the spring washer 14 and the upper clamping piece 9 .

[0037] The arrangement of the first gasket 15 can make the mutual interference between the upper clamping piece 9 and the lower clamping piece 10 more stable.

[0038] Preferably, a first clamping jaw 16 and a second clamping jaw 17 are respectively provided on both sides of the upper clamping piece 9 and the lower clamping piece 10. The first clamping jaw 16 and the second clamping jaw 17 are offset from each other and bent in a direction in which the upper clamping piece 9 and the lower clamping piece 10 approach each other.

[0039] The mutual offset of the first clamping jaw 16 and the second clamping jaw 17 can enhance the clamping stability by interlacing the upper clamping piece 9 and the lower clamping piece 10 when they contact each other.

[0040] Preferably, a second gasket 18 is provided on a side of the second nut 13 close to the explosion-proof portion 4 .

[0041] The second gasket 18 can be provided to prevent the second nut 13 from causing damage to the ceramic ring 2 when the second nut 13 rotates to the end, thereby achieving a protective effect.

[0042] Preferably, a groove 19 is provided at the end of the explosion-proof portion 4 corresponding to the second gasket 18 , and the groove 19 is used to accommodate the second gasket 18 .

[0043] The groove 19 can accommodate the second gasket 18 and limit the second gasket 18 at the same time, thereby reducing the movement of the second gasket 18 in a vibration environment to improve the connection stability.

[0044] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A high temperature resistant capacitor terminal, characterized in that: It comprises a connecting column (1), to which a wiring module and a connecting module are connected, and the connecting column (1) is connected to a capacitor via the connecting module; The connection module comprises a ceramic ring (2), the ceramic ring (2) is provided with a connection hole (3) and is connected to a connection column (1) through the connection hole (3), the ceramic ring (2) comprises an explosion-proof part (4) and a connection part (5), the explosion-proof part (4) is provided with an annular pressure relief groove (6) on the end surface close to the connection part (5), the outer side of the explosion-proof part (4) is provided with a pressure relief port (7) corresponding to the pressure relief groove (6), the connection part (5) is provided with a connection groove (8) arranged along the length direction of the connection column (1), and the two ends of the connection groove (8) are respectively connected to the pressure relief groove (6) and the outside.

2. A high temperature resistant capacitor terminal according to claim 1, characterized in that: The connecting groove (8) is an arc-shaped groove arranged around the axis of the connecting portion (5).

3. The high temperature resistant capacitor terminal according to claim 1, characterized in that: The wiring module comprises an upper clamp (9) and a lower clamp (10), each of which is provided with a mounting hole (11) and is slidably connected to a connecting column (1) via the mounting hole (11), and a first nut (12) is connected to the connecting column (1), and the first nut (12) is used to drive the upper clamp (9) and the lower clamp (10) to approach each other to complete a clamping action.

4. A high temperature resistant capacitor terminal according to claim 3, characterized in that: The connecting column (1) is also provided with a second nut (13), and the first nut (12) and the second nut (13) are respectively provided corresponding to the two sides where the upper clamping piece (9) and the lower clamping piece (10) are separated from each other, so as to adjust the positions of the upper clamping piece (9) and the lower clamping piece (10) on the connecting column (1).

5. A high temperature resistant capacitor terminal according to claim 4, characterized in that: The second nut (13) is arranged close to the connection module, and a spring washer (14) is arranged between the first nut (12) and the upper clamping piece (9).

6. A high temperature resistant capacitor terminal according to claim 5, characterized in that: A first gasket (15) is provided between the spring gasket (14) and the upper clamping plate (9).

7. The high temperature resistant capacitor terminal according to claim 5, characterized in that: A first clamping jaw (16) and a second clamping jaw (17) are respectively provided on both sides of the upper clamping piece (9) and the lower clamping piece (10); the first clamping jaw (16) and the second clamping jaw (17) are offset from each other and are bent in a direction in which the upper clamping piece (9) and the lower clamping piece (10) approach each other.

8. The high temperature resistant capacitor terminal according to claim 4, characterized in that: A second gasket (18) is provided on the side of the second nut (13) close to the explosion-proof portion (4).

9. The high temperature resistant capacitor terminal according to claim 8, characterized in that: A groove (19) is provided at the end of the explosion-proof portion (4) corresponding to the second gasket (18), and the groove (19) is used to accommodate the second gasket (18).

Images