CN114724892B - Contactor with vibration reduction insulation device - Google Patents
Contactor with vibration reduction insulation device Download PDFInfo
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- CN114724892B CN114724892B CN202210389342.1A CN202210389342A CN114724892B CN 114724892 B CN114724892 B CN 114724892B CN 202210389342 A CN202210389342 A CN 202210389342A CN 114724892 B CN114724892 B CN 114724892B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
- H01H50/045—Details particular to contactors
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Insulators (AREA)
- Insulating Bodies (AREA)
Abstract
The application relates to the field of contactors/relays, and particularly discloses a contactor with a vibration reduction insulation device, which comprises an insulation cover, a metal shell and an electrified body; the charged body comprises a metal cover; the metal shell is sleeved outside the insulating cover, the insulating cover is of a hollow structure, a glue filling area is formed between the metal shell and the metal cover and at the position where the insulating cover is arranged, and insulating heat-conducting glue is filled in the glue filling area. Reliable insulation between the charged body and the metal shell is realized, and the contactor simultaneously obtains good vibration resistance and good heat dissipation.
Description
Technical Field
The application relates to the technical field of contactors/relays, in particular to a contactor with a vibration reduction insulation device.
Background
The high-voltage contactor comprises an electromagnetic driving system and a contact system, the high-voltage high-power switching in the contact system is controlled through the low-voltage electromagnetic system, and good insulation needs to be realized between the two systems and the shell. Particularly, the contact system is in a high-voltage electrified state after being conducted, good insulation between an electrified body of the contact system and the shell is required to be ensured, so that the use safety of the high-voltage contactor can be ensured, otherwise, serious accidents are caused by electrification of the shell.
In the prior art, insulation of the contact system from the housing is generally achieved in two ways. The contact system is internally insulated, namely, in the contact system, the contact parts of the contact are isolated from other parts of the contact system in advance through insulators, and the contact system is not electrified to the outside. The insulation mode needs to carry out complex structural design and precise welding on internal parts of the contact system, the manufacturability of the product is greatly reduced, the cost is increased, and the vibration resistance of the contactor is reduced and the reliability is reduced due to the excessively complex structure. And secondly, a plastic shell is directly adopted, and insulation of the charged body to the outside is realized through the insulation property of the shell. The insulation mode is simple in structure and easy to realize, but compared with a metal material, the plastic has lower strength and rigidity and poor heat conductivity coefficient, so that the mechanical property of the contactor is greatly reduced, the thermal tolerance of the product is poor, and the maximum bearing power and the maximum service life times are reduced.
In addition, part of the contactors are insulated by adding insulation protection between a contact system (charged body) and a metal shell, such as winding polyimide adhesive tape outside the contact system and pouring insulation heat-conducting adhesive. However, because the insulation protection is difficult to uniformly wind, if the insulation protection is too close to the inner wall of the metal shell, the insulation heat-conducting glue can not flow uniformly, air holes are formed at the glue-free part, and the insulation protection is damaged due to friction between the insulation protection and the metal shell; if the insulation protection is too far away from the inner wall of the metal shell, the contact system is put into the metal shell and the insulation heat-conducting glue is solidified, so that the contact system and the metal shell are deviated in installation position, and the mechanical property of the contactor is reduced.
Disclosure of Invention
The technical solution of the application is as follows: overcomes the defects of the prior art and provides a contactor with a vibration reduction insulation device. Reliable insulation between the charged body and the metal shell is realized, and the contactor simultaneously obtains good vibration resistance and good heat dissipation.
This insulating device sets up the insulating boot between metal casing and electrified body, and this insulating boot adopts hollow out construction to combine the structure of strengthening rib, sets up the damping insulating pad between electrified body, insulating boot, metal casing, and the metal boot in the electrified body is wrapped up to the insulating boot to the part includes the ceramic cover in the electrified body, realizes the reliable location between each part. And a plurality of mutually-conducted glue filling areas are formed among the electrified body, the insulating cover and the metal shell, so that the glue filling uniformity can be ensured, the reliable insulation between the electrified body and the metal shell is realized, and the contactor simultaneously obtains good vibration resistance and good heat dissipation.
The application adopts the following technical scheme:
a contactor with vibration reduction insulation device comprises an insulation cover, a metal shell and an electrified body; the charged body comprises a metal cover; the metal shell is sleeved outside the insulating cover, the insulating cover is of a hollow structure, a glue filling area is formed between the metal shell and the metal cover and at the position where the insulating cover is arranged, and insulating heat-conducting glue is filled in the glue filling area.
The insulating boot includes a plurality of strengthening ribs of lateral wall, connects the round platform rank of strengthening rib tip, and the end connection of strengthening rib has the bottom muscle, and the one end of bottom muscle extends to the axis position of insulating boot and an organic whole connects, forms the bottom fretwork.
The reinforcing ribs are connected with the lower end face of the round bench through arc sections I, the reinforcing ribs are connected with the bottom ribs through arc sections II, and the adjacent two bottom ribs are connected through arc sections III.
The insulating cover is provided with two vibration reduction insulating pads, one vibration reduction insulating pad is located between the insulating cover and the metal cover, and the other vibration reduction insulating pad is located between the insulating cover and the metal shell.
The vibration reduction insulating pad is provided with a through hole II, the maximum distance between the arc sections III is delta 4, and the diameter of the through hole II is larger than delta 4.
And a through hole is formed in the center of the bottom of the insulating cover.
The side of the round bench facing the reinforcing rib is the lower end face of the round bench, the distance from the lower end face of the round bench to the bottom of the insulating cover is delta 1, the total height of the outer wall of the metal cover is delta 2, the gap between the upper end of the metal cover and the lower end face of the round bench is delta 3, delta 1 is larger than delta 2, delta 3 = delta 1-delta 2, and delta 3 is larger than 0.
The electrified body further comprises a connecting part inserted into the opening end of the metal cover, a first annular groove is formed in the peripheral side wall of the connecting part, one side of the first annular groove is flush with the top of the metal cover, and the other side of the first annular groove is higher than the top of the metal cover.
The electrified body further comprises a ceramic cover clamped with the connecting portion, a second annular groove is formed in the end portion of the outer circumferential side wall of the connecting portion, the second annular groove is located at one end, far away from the metal cover, of the first annular groove, and the bottom of the ceramic cover is matched with the second annular groove.
The outer wall of the ceramic cover is circumferentially provided with a large outer circle and a stepped outer circle, a stepped step is arranged between the large outer circle and the stepped outer circle, the insulating cover is provided with a stepped thin wall, and the stepped step is matched with the stepped thin wall; the step thin wall is in clearance fit with the step excircle.
In summary, the application at least comprises the following beneficial technical effects:
(1) The contactor with the vibration reduction insulating device ensures reliable positioning of the electrified body, the insulating cover and the metal shell during assembly through the structure of the contactor, does not need a positioning tool, and simplifies the assembly process.
(2) Through insulating cover hollow out construction and damping insulating pad's setting, ensure that electrified body is fully wrapped up by insulating part and insulating heat conduction glue, form good heat conduction passageway and good damping buffering between electrified body and the metal casing, promote product thermal tolerance and mechanical tolerance.
(3) Through setting up a plurality of glue filling areas that switch on each other, ensure the even free flow of insulating heat conduction glue, there is not the gas pocket, guarantee insulating heat conduction glue solidification's uniformity.
Drawings
FIG. 1 is a cross-sectional view of a contactor having a vibration damping insulation apparatus in accordance with an embodiment of the present application;
FIG. 2 is a schematic illustration of a contactor assembly flow with vibration damping insulation in accordance with an embodiment of the present application;
FIG. 3 is a schematic view of an assembled structure of a contactor having a vibration damping insulating device in accordance with an embodiment of the present application;
FIG. 4 is a schematic view of a contactor having vibration damping insulation in accordance with an embodiment of the present application;
FIG. 5 is a schematic view of an insulating cover according to an embodiment of the present application;
FIG. 6 is a schematic view of a ceramic cover in accordance with an embodiment of the present application;
fig. 7 is a schematic structural view of a vibration damping insulating pad according to an embodiment of the present application. Reference numerals illustrate:
1. an insulating cover; 11. reinforcing ribs; 12. the bottom of the insulating cover; 13. step thin-wall circles; 14. a through hole I; 15. a round step; 16. the lower end surface of the round step; 17. a bottom rib; 18. an insulating cover wall portion; 111. an outer wall of the insulating cover; 112. an inner wall of the insulating cover; 113. arc section I; 114. arc section II; 115. arc section III;
2. a metal housing;
3. a charged body;
4. a metal cover; 41. the bottom of the metal cover; 42. a metal cover outer wall; 43. the upper end part of the metal cover;
5. a ceramic cover; 51. a large outer circle; 52. a stepped outer circle; 53. a step;
6. a vibration damping insulating pad; 61. a through hole II;the diameter of the through hole II;
7. a stationary contact;
8. a moving contact;
9. a connection part; 91. a first ring groove; 92. a second ring groove;
101. the glue filling area I; 102. a glue filling area II; 103. glue filling area III; 104. a glue filling area IV; 105. a glue filling area V; 106. a channel I; 107. a channel II;
δ1, the distance from the lower end surface of the round bench to the bottom of the insulating cover; δ2, the total height of the metal cover outer wall 42; delta 3, a gap between the upper end part of the metal cover and the lower end surface of the round bench; delta 4, maximum distance between arc sections III.
Detailed Description
The application is described in further detail below with reference to the attached drawings and to specific embodiments:
the embodiment of the application discloses a contactor with a vibration reduction insulating device, which can insulate a metal shell from an internal charged body and ensure that the contactor has good mechanical tolerance and heat dissipation.
Referring to fig. 1-5, a contactor having a vibration damping insulation apparatus may include: an insulating cover 1, a metal shell 2 and a charged body 3. The metal casing 2 is sleeved outside the insulating cover 1, the charged body 3 is positioned inside the insulating cover 1, the insulating cover 1 is of a hollow structure, a glue filling area is formed between the metal casing 2 and the charged body 3 and at the position where the insulating cover 1 is arranged, and insulating heat-conducting glue is filled in the glue filling area.
Referring to fig. 1, the charging body 3 includes a metal cover 4, a connection portion 9, a ceramic cover 5, a fixed contact 7, and a moving contact 8, where the metal cover 4 is located in the insulating cover 1, the connection portion 9 is inserted into an opening end of the metal cover 4, the ceramic cover 5 is located at one side of the metal cover 4 and the connection portion away from the bottom of the metal housing 2, the fixed contact 7 is connected with the ceramic cover 5, the moving contact 8 is relatively slidably connected with the metal cover 4, and when the moving contact 8 slides to contact with the fixed contact 7, the metal cover 4 is conducted with the fixed contact 7, and the metal cover 4 has a high voltage.
The insulating boot 1 includes a plurality of strengthening ribs 11 of lateral wall, connects round annular round platform step 15 of strengthening rib 11 tip, and the end connection that the strengthening rib 11 kept away from round step 15 has bottom muscle 17, and the axis position and the body coupling of insulating boot are extended to the one end of bottom muscle 17, form the bottom fretwork. The strengthening rib 11 is connected through circular arc section I113 with terminal surface 16 under the round platform step, and the strengthening rib 11 is connected through circular arc section II 114 with bottom muscle 17, is connected and is connected through circular arc section III 115 between two adjacent bottom muscle 17, and above connection can be when increasing the district space of encapsulating, effectively promotes the joint strength of insulating boot 1, prevents stress concentration, and electrified body 3 pushes down or when rotatory when especially assembling, guarantees that insulating boot 1 has high joint strength, can not take place the fracture. The insulating cover 1 is provided with an insulating cover bottom 12, an insulating cover wall 18, an insulating cover outer wall 111, and an insulating cover inner wall 112; the insulating cover wall part 18 is a hollow structure formed by a plurality of reinforcing ribs 11; the insulating cover bottom 12 is of a hollow structure, and the hollow structure of the insulating cover bottom 12 is formed by bottom ribs 17. The outer wall 111 of the insulating cover is sleeved on the outer wall 42 of the metal cover, the inner wall of the metal shell 2 is sleeved on the inner wall 112 of the insulating cover, a glue filling area 101 is formed between the hollow structure among the reinforcing ribs 11, the inner wall of the metal shell 2 and the outer wall 42 of the metal cover, and insulating heat-conducting glue is filled in the glue filling area 101.
The charged body 3 is isolated from the metal shell 2 by the insulating cover 1, so that the metal shell 2 is ensured to be uncharged. When the product is assembled, the reinforcing ribs 11 can ensure good support and positioning among the above parts, a large amount of insulating and heat-conducting glue can be contained in the glue filling area 101, the outer wall 42 of the metal cover is effectively insulated and isolated from the inner wall of the metal shell 2, and the metal cover 4 is directly bonded with the metal shell 2 through the insulating and heat-conducting glue. Compared with an insulating cover without a hollow structure, when the metal shell 2 vibrates, the insulating heat-conducting glue can play a role in vibration reduction and buffering, so that the vibration of the electrified body 3 is reduced, and the vibration resistance of the contactor is improved. When the contactor is subjected to high-power switching or long-life work to cause the charged body 3 to generate a large amount of heat, the insulating heat-conducting silica gel can rapidly transfer the heat to the metal shell 2, so that the contactor rapidly dissipates heat, and the thermal tolerance of the contactor is improved.
Referring to fig. 1, 3, 4, 7, a contactor with vibration damping insulation according to the present application further comprises two vibration damping insulation pads 6. The metal cover 4 is also provided with a metal cover bottom 41 and a metal cover upper end 43; a vibration damping insulating pad 6 is located between the insulating cover bottom 12 and the metal cover bottom 41; another vibration-damping insulating pad 6 is positioned between the insulating cover bottom 12 and the bottom of the metal shell 2; the vibration-damping insulating pad 6 is provided with a through hole II 61; a glue filling area III 103 is formed among the metal cover bottom 41, the through hole II 61 of the vibration reduction insulating pad 6 and the insulating cover bottom 12; a glue filling area IV 104 is formed among the bottom 12 of the insulating cover, the through hole II 61 of the other vibration reduction insulating pad 6 and the bottom of the metal shell 2. And a glue filling area II 102 is formed between the hollow structure between the bottom ribs 17 and the bottoms 41 and 2 of the metal cover. The maximum distance between the arc sections III 115 on the bottom 12 of the insulating cover is delta 4; inner diameter of through hole II 61And the size is larger than delta 4, a channel I106 is formed between the two, and the glue filling area II 102, the glue filling area III 103 and the glue filling area IV 104 are conducted. A through hole is provided in the center of the insulating cover bottom 12. The through holes further conduct the glue filling area II 102, the glue filling area III 103 and the glue filling area IV 104.
The outline of the thick line in fig. 1 is an insulating cover 1 and two vibration reduction insulating pads in the application, and the application realizes insulating isolation while positioning a charged body 3 and a metal shell 2 mainly through the three parts combined with insulating heat-conducting silica gel solidified in each glue pouring area. The two vibration reduction insulating pads in the structure can prevent the insulating cover 1, the metal cover 4 from being in direct contact with the bottom of the metal shell 2, the three glue filling areas are communicated with the glue filling area I101 in the hollow structure of the insulating cover wall part 18 through the arrangement and size matching of the two vibration reduction insulating pads and the bottom ribs 7 of the insulating cover, the smoothness of a glue filling channel is ensured, insulating and heat-conducting glue can freely flow during assembly, the whole gap is filled, no bubbles are generated, and the uniformity of the distribution and solidification of the insulating and heat-conducting glue during assembly is ensured. Meanwhile, the two vibration reduction insulating pads and the insulating heat-conducting glue in each glue filling area form a good damping effect, so that the vibration of the metal shell 2 is reduced and transferred to the electrified body 3, and a good vibration reduction effect is achieved. The insulating and heat conducting glue in each glue filling area simultaneously contributes to the rapid dissipation of heat inside the charged body 3 of the contactor.
Referring to fig. 1 to 6, the ceramic cover 5 and the metal cover 4 are indirectly connected through a connecting portion to form the charging body 4, a second annular groove 92 is formed in the end portion of the outer circumferential side wall of the connecting portion 9, and the bottom of the ceramic cover is matched with the second annular groove 92, so that the relative position between the ceramic cover and the connecting portion is stable. The first annular groove 91 is formed in the peripheral side wall of the connecting portion 9, one side of the first annular groove 91 is flush with the top of the metal cover, the other side of the first annular groove 91 is higher than the top of the metal cover, and a glue filling area V105 is formed between the first annular groove 91 and the metal shell 2 and the insulating cover 1. The ceramic cover 5 is provided with a large outer circle 51, the end part of the ceramic cover 5 is provided with a stepped outer circle 52, and a stepped step 53 is arranged between the large outer circle 51 and the stepped outer circle 52. The insulating cover 1 comprises a stepped thin wall 13, and a truncated cone step 15 and a hollowed-out structure are provided with a truncated cone step lower end surface 16; the stepped thin wall 13 is sleeved on the stepped outer circle 52 of the ceramic cover 5, and the stepped thin wall 13 is in clearance fit with the stepped outer circle 52.
When the contactor is assembled, in order to make the distribution of the insulating and heat-conducting glue more uniform, the heat-conducting glue can be poured into the metal shell 2 first, then the charged body 3 is arranged into the insulating cover 1 according to fig. 2, then the charged body 3 and the insulating cover 1 are arranged into the metal shell 2 together to form the assembly body of fig. 1, and at the moment, the charged body 3 is rotated to stir the filled insulating and heat-conducting glue, so that the glue uniformly flows away. Because the ladder thin wall 13 of insulating boot 1 and the ladder excircle 52 of ceramic boot 5 are clearance fit, when playing good positioning action, in the in-process that electrified body 3 stirs insulating heat conduction glue, electrified body 3's rotation can not lead to the direct atress between the part, and protection insulating boot 1 can not damage, has guaranteed insulating protection's integrality.
Referring to fig. 2 and 3, the distance from the lower end surface 16 of the truncated cone step on the insulating cover 1 to the bottom 17 of the insulating cover is δ1, the total height of the outer wall 42 of the metal cover is δ2, and the gap between the upper end 43 of the metal cover and the lower end surface 16 of the truncated cone step is δ3.δ1 is larger than δ2, δ3=δ1- δ2, δ3 is larger than 0, and a channel ii 107 is formed between the ceramic cover 5 and the metal cover 4 at the gap of δ3, so as to conduct the glue filling area i 101 with the glue filling area v 105. The delta 3 gap can ensure that insulating and heat-conducting glue in the glue filling area I101 can freely flow into the glue filling area V105, so that the insulating and heat-conducting glue flows into a space where the ceramic cover 5 and the metal cover 4 are indirectly connected, the metal cover is completely wrapped by the insulating and heat-conducting glue, and the insulation protection between the metal shell 2 and the electrified body 3 is improved. Meanwhile, because of the delta 3 gap, 5 glue filling areas in the application are communicated to the cavity of the whole metal shell 2 from the inner bottom of the metal shell 2, and the glue filling amount of the glue filling areas I-IV can be ensured without precisely controlling the glue filling amount during glue filling. If the delta 3 gap is not formed, since the glue filling areas I-IV are positioned in the closed space formed by the outer wall 42 of the metal cover, the lower end face 16 of the round bench, the inner wall of the metal shell 2 and the bottom of the metal shell 2, the glue amount needs to be accurately calculated, and the insulation heat conduction glue can be ensured to be just filled in the glue filling areas I-IV. Because of the expansion and contraction of the adhesive at different temperatures and during curing, if the adhesive amount is too large, the charged body 3 and the insulating cover 1 can be jacked up from the bottom of the metal shell 2 in the curing process of the insulating heat-conducting adhesive, so that the positioning is invalid. If the amount of the adhesive is too small, air holes are formed between the charged body 3, the insulating cover 1, and the metal shell 2.
And the delta 3 gap is formed, and the glue filling areas I-IV are communicated with the glue filling area V. Because the glue filling area V is positioned at the indirect connection part of the ceramic cover 5 and the metal cover 4 and is of an open structure, the glue filling amount of the glue filling area V is not required to be strictly controlled. When the glue is filled, the total glue amount is only required to be set to be larger than the space of the glue filling areas I-IV, and the redundant glue amount can automatically flow into the glue filling area V, so that the insulation heat-conducting glue can be filled in the glue filling areas I-IV, the positioning is not affected, air holes are not formed, and the electrified body 3 and the metal shell 2 form good insulation protection.
The implementation principle of the application is as follows: when the contactor is assembled, in order to make the distribution of the insulating heat-conducting glue more uniform, the heat-conducting glue can be poured into the metal shell 2 firstly, then the charged body 3 is filled into the insulating cover 1, then the charged body 3 and the insulating cover 1 are filled into the metal shell 2 together, in the process, the heat-conducting glue can gradually fill the penetrating glue filling areas I-IV, and meanwhile, the charged body 3 can be rotated to stir the filled insulating heat-conducting glue, so that the glue can uniformly flow out. The insulating cover 1 and the matching structure between the electrified body 3 and the metal shell 2 ensure that the insulating cover has high connection strength, cannot break, and has stable position matching between the parts, and the glue quantity is convenient to control. And the finally obtained contactor has better shock absorption and heat dissipation functions.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A contactor having a vibration damping insulator, characterized by: comprises an insulating cover (1), a metal shell (2) and a charged body (3);
the charging body (3) comprises a metal cover (4);
the metal shell (2) is sleeved outside the insulating cover (1), the insulating cover (1) is of a hollow structure, a glue filling area is formed between the metal shell (2) and the metal cover (4) and at the arrangement position of the insulating cover (1), and insulating heat-conducting glue is filled in the glue filling area;
the insulation cover (1) comprises a plurality of reinforcing ribs (11) on the side wall and a round bench (15) connected with the end parts of the reinforcing ribs (11), wherein the end parts of the reinforcing ribs (11) are connected with bottom ribs (17), one ends of the bottom ribs (17) extend to the axis position of the insulation cover (1) and are integrally connected to form a bottom hollow, the lower end surfaces of the reinforcing ribs (11) and the round bench (15) are connected through a circular arc section I (113), the reinforcing ribs (11) and the bottom ribs (17) are connected through a circular arc section II (114), and two adjacent bottom ribs (17) are connected through a circular arc section III (115).
2. A contactor having vibration damping insulation according to claim 1, wherein: the insulating cover (1) is provided with two vibration reduction insulating pads (6), one vibration reduction insulating pad (6) is located between the insulating cover (1) and the metal cover (4), and the other vibration reduction insulating pad (6) is located between the insulating cover (1) and the metal shell (2).
3. A contactor with vibration damping insulation according to claim 2, wherein: the vibration reduction insulating pad (6) is provided with a through hole II (61), the maximum distance between the arc sections III (115) is delta 4, and the diameter of the through hole II (61) is larger than delta 4.
4. A contactor having vibration damping insulation according to claim 1, wherein: a through hole is formed in the center of the bottom of the insulating cover (1).
5. A contactor having vibration damping insulation according to claim 1, wherein: the side of the round bench (15) facing the reinforcing rib (11) is the lower end face of the round bench (15), the distance from the lower end face of the round bench (15) to the bottom of the insulating cover (1) is delta 1, the total height of the outer wall of the metal cover (4) is delta 2, the gap between the upper end part of the metal cover (4) and the lower end face of the round bench (15) is delta 3, delta 1 is larger than delta 2, delta 3 = delta 1-delta 2, and delta 3 is larger than 0.
6. A contactor having vibration damping insulation according to claim 1, wherein: the electrified body (3) further comprises a connecting part (9) inserted into the opening end of the metal cover (4), a first annular groove (91) is formed in the outer circumferential side wall of the connecting part (9), one side of the first annular groove (91) is flush with the top of the metal cover (4), and the other side of the first annular groove (91) is higher than the top of the metal cover (4).
7. A contactor having vibration damping insulation according to claim 6, wherein: the electrified body (3) further comprises a ceramic cover (5) clamped with the connecting portion, a second annular groove (92) is formed in the end portion of the outer circumferential side wall of the connecting portion (9), the second annular groove (92) is located at one end, far away from the metal cover (4), of the first annular groove (91), and the bottom of the ceramic cover (5) is matched with the second annular groove (92).
8. A contactor having vibration damping insulation according to claim 7, wherein: the outer wall of the ceramic cover (5) is circumferentially provided with a large outer circle (51) and a stepped outer circle (52), a stepped step (53) is arranged between the large outer circle (51) and the stepped outer circle (52), the insulating cover (1) is provided with a stepped thin wall, and the stepped step (53) is matched with the stepped thin wall; the step thin wall is in clearance fit with the step outer circle (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210389342.1A CN114724892B (en) | 2022-04-13 | 2022-04-13 | Contactor with vibration reduction insulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210389342.1A CN114724892B (en) | 2022-04-13 | 2022-04-13 | Contactor with vibration reduction insulation device |
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| Publication Number | Publication Date |
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| CN114724892A CN114724892A (en) | 2022-07-08 |
| CN114724892B true CN114724892B (en) | 2023-09-19 |
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| CN202210389342.1A Active CN114724892B (en) | 2022-04-13 | 2022-04-13 | Contactor with vibration reduction insulation device |
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| JP2015043656A (en) * | 2013-08-26 | 2015-03-05 | 株式会社東芝 | Circuit breaker |
| DE102016121345B4 (en) * | 2016-11-08 | 2018-08-02 | Epcos Ag | Power contactor and method for producing a housing body for the power contactor |
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| CN101894708A (en) * | 2010-03-23 | 2010-11-24 | 贵州航天电器股份有限公司 | Impact resistant method for installing relay |
| EP2369608A1 (en) * | 2010-03-26 | 2011-09-28 | ABB Research Ltd. | High-voltage circuit breaker |
| CN105895452A (en) * | 2016-05-27 | 2016-08-24 | 浙江英洛华新能源科技有限公司 | Sealed high-voltage DC relay |
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| CN114724892A (en) | 2022-07-08 |
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