CN211654705U - High-voltage relay vibration reduction structure and high-voltage power distribution unit - Google Patents
High-voltage relay vibration reduction structure and high-voltage power distribution unit Download PDFInfo
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- CN211654705U CN211654705U CN202020173460.5U CN202020173460U CN211654705U CN 211654705 U CN211654705 U CN 211654705U CN 202020173460 U CN202020173460 U CN 202020173460U CN 211654705 U CN211654705 U CN 211654705U
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Abstract
The utility model discloses a high-voltage relay vibration damping structure and a high-voltage power distribution unit, which comprise an elastic cushion block and a supporting sleeve; the elastic cushion block is provided with a mounting hole; the supporting sleeve comprises a sleeve and a blocking part fixedly arranged at one end of the sleeve, the sleeve is arranged in the mounting hole, the blocking part is blocked at the first end part of the elastic cushion block, and the length of the sleeve is smaller than that of the mounting hole. The utility model discloses a high voltage relay damping structure can be at the direct mount on current high voltage relay's basis, reaches the effect of realizing that the damping is fallen and is made an uproar, need not carry out damping research and development to relay inner structure.
Description
Technical Field
The utility model relates to an automotive filed especially relates to a high-voltage relay damping structure and high-voltage distribution unit.
Background
The NVH performance of the automobile vibration noise is an important measurement standard for the existing user to experience the comfort performance of the automobile. The new energy automobile is an important trend of automobile development, and a power battery system of the new energy automobile is attracted/disconnected through a high-voltage relay contact in a high-voltage power distribution unit, so that power flow distribution of the power battery system is realized, and the power battery system and a battery management system are combined to further realize the functions of high-voltage power-on and power-off and charging of the whole automobile. However, in the process of powering on and powering off the vehicle, the impact of the attraction or disconnection of the contacts of the relay can generate the noise of 'ticking', and the noise is transmitted to the passenger compartment through the vehicle body mounted on the high-voltage power distribution unit, so that the driver and passengers feel uncomfortable, and the NVH performance of the whole vehicle is reduced.
The low-noise relay newly researched and developed in the prior art can not meet the requirements of the vehicle-scale low-noise high-voltage relay, and if the overall structure of the relay is subjected to vibration reduction and noise reduction research and development, complex research and development procedures and production verification cost are needed, and the consumed time is long.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art, providing a high-voltage relay damping structure which can be directly installed on the basis of the prior high-voltage relay, achieving the effect of damping and noise reduction, and not needing to carry out damping research and development on the internal structure of the relay; another object of the present invention is to provide a high voltage power distribution unit.
In order to achieve the purpose, the utility model provides a high-voltage relay damping structure, which comprises an elastic cushion block and a supporting sleeve;
the elastic cushion block is provided with a mounting hole;
the supporting sleeve comprises a sleeve and a blocking part fixedly arranged at one end of the sleeve, the sleeve is arranged in the mounting hole, the blocking part is blocked at the first end part of the elastic cushion block, and the length of the sleeve is smaller than that of the mounting hole.
Preferably, a plurality of first bosses are arranged at the first end of the elastic cushion block, and the first bosses are abutted against the stop part; and a plurality of second bosses are arranged at the second end part of the elastic cushion block.
Preferably, the outer surface of the elastic cushion block is provided with a groove.
As a preferred scheme, the elastic cushion block is an elastic column, the first boss and the second boss are respectively arranged at two ends of the elastic column, the mounting hole is a cylindrical hole, and the groove is an annular groove arranged on the outer surface of the elastic column;
the elastic cushion block, the first boss, the second boss, the mounting hole and the groove are integrally formed.
Preferably, the length of the sleeve is 94% -98% of the length of the mounting hole.
Preferably, the sleeve is a cylindrical tube, the stopper extends along the longitudinal direction of the end of the sleeve, and the sleeve and the stopper are integrally formed.
Preferably, the number of the grooves is two, and the two grooves are respectively arranged on two opposite sides of the outer surface of the elastic cushion block.
Preferably, a plurality of axially extending elongated slots are uniformly formed in the inner wall of the mounting hole.
A high-voltage power distribution unit comprises a shell, a high-voltage relay arranged in the shell and a support of a vehicle body, wherein the shell is provided with a plurality of high-voltage relay vibration reduction structures;
the high-voltage relay vibration damping structure comprises an elastic cushion block and a supporting sleeve, the shell is arranged on the elastic cushion block, the supporting sleeve comprises a sleeve and a blocking portion located at one end of the sleeve, the sleeve is arranged in the mounting hole, the blocking portion blocks a first end portion of the elastic cushion block, the support is arranged at a second end portion of the elastic cushion block, and a fastener penetrating through the sleeve and a support of the vehicle body is arranged in the sleeve.
As a preferred scheme, the outer surface of the elastic cushion block is provided with a groove; the shell is provided with a protruding portion, the protruding portion is provided with a mounting groove matched with the outer surface of the elastic cushion block, and the inner wall of the mounting groove is provided with a protrusion matched with and clamped by the groove.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a high-voltage relay damping structure includes elastic cushion and supports the cover, support the sleeve pipe cartridge of cover in elastic cushion's mounting hole, and sheathed tube length is less than the length of mounting hole, utilize the fastener with the automobile body coupling of elastic cushion and vehicle, the affiliated high-voltage power distribution unit of high-voltage relay connects on elastic cushion, noise and vibration that the actuation of contact in the high-voltage relay like this or disconnection produced transmit elastic cushion at first on, the elastic damping performance who utilizes elastic cushion reduces vibration and noise, reduce noise and vibration that transmit in the passenger cabin, improve driver and passenger's travelling comfort, improve whole car NVH performance.
The utility model discloses a high-tension relay damping structure's elastic cushion is used for the elastic damping to fall and makes an uproar, supports the cover and is used for rigid support elastic cushion, avoids elastic cushion to receive great pressure inefficacy, and sheathed tube length is less than the length of mounting hole simultaneously, sets up the compression deformation degree that the suitable length of sleeve pipe restricted elastic cushion.
The utility model discloses a high voltage relay damping structure only need directly pass through damping structure and automobile body connection on current high voltage distribution unit's basis, just can realize reducing noise and the vibration that high voltage relay's contact produced, need not carry out the damping to relay inner structure and fall the research and development of making an uproar, reduces the research and development cost.
The utility model discloses a casing and the elastic cushion block of high voltage distribution unit are connected, utilize the fastener to be connected to the support with high voltage relay damping structure on, realized fixing the purpose on the support through the damping structure with high voltage distribution unit, carry out the damping with the noise and the vibration transmission that high voltage relay's contact produced to the damping structure and fall and make an uproar, reduce noise and vibration that transmit to passenger cabin.
Drawings
Fig. 1 is a schematic structural diagram of a vibration damping structure of a high-voltage relay in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an elastic cushion block of a vibration damping structure of a high-voltage relay in an embodiment of the present invention;
FIG. 3 is a schematic top view of the structure of FIG. 2;
fig. 4 is a schematic structural diagram of a support sleeve of a vibration damping structure of a high-voltage relay in an embodiment of the present invention;
fig. 5 is a schematic view of an installation structure of a high-voltage power distribution unit according to an embodiment of the present invention;
fig. 6 is the utility model discloses embodiment high voltage distribution unit's casing and high-voltage relay damping structure's mounting structure sketch map.
In the figure, 1, an elastic cushion block; 11. mounting holes; 12. a first boss; 13. a second boss; 14. a groove; 15. a long groove; 2. a support sleeve; 21. a sleeve; 22. a stopper portion; 3. a fastener; 4. a housing; 41. a protruding portion; 42. mounting grooves; 43. a protrusion; 5. and (4) a bracket.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those 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 referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
The preferred embodiment of the high-voltage relay vibration damping structure of the utility model, as shown in fig. 1, comprises an elastic cushion block 1 and a supporting sleeve 2, wherein the elastic cushion block 1 is made of rubber plastic material, so that the elastic cushion block 1 has an elastic shrinkage function; the elastic cushion block 1 is internally provided with a mounting hole 11, the mounting hole 11 extends along the length direction of the elastic cushion block 1, namely, the mounting hole 11 is arranged along the stress direction of the elastic cushion block 1, the mounting hole 11 is a through hole, the support sleeve 2 comprises a sleeve 21 and a stop part 22, the sleeve 21 is matched with the mounting hole 11, the sleeve 21 is inserted into the mounting hole 11 from the opening of the mounting hole 11 at the first end part of the elastic cushion block 1 until the stop part 22 is stopped at the first end part of the elastic cushion block 1, meanwhile, the length of the sleeve 21 is smaller than that of the elastic cushion block 1, a fastening part 3 is inserted into the sleeve 21, one end cap of the fastening part 3 is abutted against the stop part 22, the end part of the fastening part 3 extending out of the mounting hole 11 is inserted into a corresponding bracket or shell to be connected and locked, and simultaneously, the shell outside the high-voltage relay is connected onto the elastic cushion block 1, so that the noise and vibration generated by the suction or, the elastic damping performance of the elastic cushion block 1 is utilized to reduce vibration and noise, reduce noise and vibration transmitted to a passenger cabin, improve the comfort of a driver and passengers, and improve the NVH performance of the whole vehicle.
Wherein, in this application, support cover 2 is the rigid material for rigidity support cushion 1 to because the length of sleeve 21 is less than the length of mounting hole 11, set up the suitable length of sleeve 21 and limit cushion 1's compressive deformation degree, avoid cushion 1 to receive great pressure and lose efficacy.
Further, in order to improve the effects of shock absorption and noise reduction, a plurality of first bosses 12 are uniformly arranged at the first end part of the elastic cushion block 1, the first bosses 12 are abutted against the stopping part 22, a plurality of second bosses 13 are arranged at the second end part of the elastic cushion block 1, when the elastic cushion block 1 is vibrated, the transmission path of the vibration is transmitted to the second end part through the first end part of the elastic cushion block 1, and the plurality of first bosses 12 and the plurality of second bosses 13 are arranged to effectively cut off the vibration sound transmission path; the first boss 12 and the second boss 13 in the present application have the same structure, and are of spherical bump structures or block structures, and are of structures such as cuboids or cubes. Compared with the elastic cushion block 1 which is not provided with the first boss 12 and the second boss 13, the elastic cushion block 1 which is provided with the first boss 12 and the second boss 13 through an automobile NVH test shows that a vibration sound transmission path can be effectively isolated by using a multi-bump design scheme compared with a plane scheme, and then the transmission of the electric 'click' noise on the relay to the passenger cabin can be effectively reduced.
Further, a groove 14 is formed in the outer surface of the elastic cushion block 1, and the groove 14 is used for connecting the housing 4 of the high-voltage relay, and particularly the housing of the high-voltage relay can be clamped on the groove 14. The groove 14 may be a circular arc groove or a square groove, and may be configured to be annularly arranged along the outer surface of the resilient pad 1, or may be configured to be in the shape of a plurality of notches. In this application, elastic cushion block 1 is the structure of elasticity post, and first boss 12 and second boss 13 are established respectively at the both ends of elasticity post, and mounting hole 11 also is the cylinder hole, and recess 14 is for establishing the annular groove at elasticity post surface, and the annular groove extends along elasticity post surface cyclic annular, and during the use, high-voltage relay's casing 4 can direct joint in the annular groove.
Wherein, first boss 12, second boss 13, mounting hole 11 and recess 14 of cushion 1 in this embodiment are together fashioned with cushion 1, make cushion 1's structural strength and elasticity can be more firm like this, avoid cushion 1's fatigue failure and fracture.
In other embodiments of the present application, the elastic cushion block 1 may have a rectangular parallelepiped structure, the number of the grooves 14 is two, and the two grooves 14 are respectively disposed on two opposite sides of the outer surface of the elastic cushion block 1 and are used for matching with a housing of a high-voltage relay.
The sleeve 21 is a cylindrical tube, the stop portion 22 extends longitudinally along the end portion of the sleeve 21 to form a stop edge, the stop edge abuts against the first end portion of the elastic cushion block 1, the sleeve 21 and the stop portion 22 are integrally formed, and the support sleeve 2 is made of rigid material, such as steel or alloy steel material.
Further, the length of the sleeve 21 is 94% -0.98% of the length of the mounting hole 11, so that the compression amount of the elastic cushion block 1 can be controlled within 6% to avoid the failure and fracture of the elastic cushion block 1. Simultaneously, the hardness, wearability and the ageing behavior of blotter rubber material need be compromise in the design of cushion 1, utilize intensity tests such as whole car endurance test and battery package vibration test to accomplish the flexible capability test to cushion 1 to and confirm the suitable length of sleeve pipe 21 according to cushion 1's elasticity performance, can make cushion have suitable elasticity performance on the basis of providing sufficient holding power for the damping structure of this application, in order to reach the effect of vibration damping and falling the noise.
In the application, the inner wall of the mounting hole 11 is uniformly provided with a plurality of elongated slots 15 extending along the axial direction, the sleeve 21 is matched with the mounting hole 11, and the elongated slots 15 are used for increasing the friction force between the sleeve 21 and the inner wall of the mounting hole 11, so that the sleeve 21 is clamped by the mounting hole 11.
The utility model discloses high voltage distribution unit's preferred embodiment, as shown in fig. 5-6, high voltage distribution unit includes casing 4 and establishes the high voltage relay in casing 4, is equipped with a plurality of high voltage relay damping structures on casing 4, and high voltage relay damping structure is the same with foretell high voltage relay damping structure's in the embodiment structure in this embodiment.
Specifically, the shell 4 is connected to a bracket 5 of a vehicle body through a high-voltage relay damping structure, the high-voltage relay damping structure specifically comprises an elastic cushion block 1 and a support sleeve 2, the shell 4 is arranged on the elastic cushion block 1, the support sleeve 2 comprises a sleeve 21 and a stop portion 22 located at one end of the sleeve 21, the sleeve 21 is matched with the mounting hole 11, the stop portion 22 is stopped at a first end portion of the elastic cushion block 1, the bracket 5 is arranged at a second end portion of the elastic cushion block 1, a fastening member 3 penetrating through the sleeve 21 and the bracket 5 is arranged in the sleeve 21, the fastening member 3 penetrates through the sleeve 21 and the mounting hole 11 from the first end portion of the elastic cushion block 1 from the middle of the sleeve 21, then the fastening member 3 penetrates through the mounting hole 11 reserved on the bracket 5 and then is fastened and connected through a locking member.
Further, the shell 4 is detachably connected with the elastic cushion block 1, and a groove 14 is formed in the outer surface of the elastic cushion block 1; be equipped with extension 41 on the casing 4, extension 41 is equipped with the mounting groove 42 that matches with the cushion block 1 surface, and the inner wall of mounting groove 42 is equipped with the arch 43 that matches the card with recess 14 and ends, and extension 41 specifically is two lugs that stretch out, and the clearance between two lugs matches with cushion block 1, and arch 43 is established on the inside wall of lug, and in the time of the use, with cushion block 1 edgewise cartridge to the mounting groove 42 that two lugs formed.
The shell 4 is connected on the support 5 of automobile body through a plurality of high-voltage relay vibration damping structure specifically, through weight, the envelope of aassessment high voltage distribution unit, analyzes the compression capacity of cushion 1, considers installation production efficiency in step, generally 4 or 6 points installation are fixed, recommends 4 points installation fixed mode, adopts 4 high-voltage relay vibration structure promptly with fixed shell 4. Thus, the transmission path of the vibration of the contact of the high-voltage relay is the vibration sound of the high-voltage relay, namely the shell 4, the vibration reduction structure of the high-voltage relay, namely the bracket 5 of the vehicle body or the shell and the vehicle body; therefore, the vibration of the shell 4 can be effectively prevented from being transmitted to the bracket 5 of the vehicle body and the passenger compartment through the reasonable compression amount of the elastic cushion block 1.
High voltage distribution unit one end input high voltage module, the whole car load of output is connected to one end electricity in addition, and the inside soft copper bar that adopts of high voltage distribution unit connects, can reduce the vibration on the propagation path, and then realize making an uproar, and the wiring increase of soft copper bar is bent etc. simultaneously designs to further damping is fallen and is made an uproar.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. A vibration damping structure of a high-voltage relay is characterized by comprising an elastic cushion block and a support sleeve;
the elastic cushion block is provided with a mounting hole;
the supporting sleeve comprises a sleeve and a blocking part fixedly arranged at one end of the sleeve, the sleeve is arranged in the mounting hole, the blocking part is blocked at the first end part of the elastic cushion block, and the length of the sleeve is smaller than that of the mounting hole.
2. The vibration damping structure for the high-voltage relay according to claim 1, wherein the first end of the resilient pad is provided with a plurality of first bosses, and the first bosses are abutted against the stopper; and a plurality of second bosses are arranged at the second end part of the elastic cushion block.
3. The vibration damping structure for a high-voltage relay according to claim 2, wherein the outer surface of the elastic pad is provided with a groove.
4. The vibration damping structure for the high-voltage relay according to claim 3, wherein the elastic cushion block is an elastic column, the first boss and the second boss are respectively arranged at two ends of the elastic column, the mounting hole is a cylindrical hole, and the groove is an annular groove arranged on the outer surface of the elastic column;
the elastic cushion block, the first boss, the second boss, the mounting hole and the groove are integrally formed.
5. The vibration damping structure for a high-voltage relay according to claim 4, wherein the length of the bushing is 94% to 98% of the length of the mounting hole.
6. The vibration damping structure for a high-voltage relay according to claim 4, wherein the sleeve is a cylindrical tube, the stopper portion extends in a longitudinal direction of an end portion of the sleeve, and the sleeve and the stopper portion are integrally formed.
7. The high-voltage relay damping structure according to claim 3, wherein the number of the grooves is two, and the two grooves are respectively disposed on opposite sides of the outer surface of the resilient pad.
8. The vibration damping structure for the high-voltage relay according to any one of claims 1 to 7, wherein a plurality of axially extending elongated slots are uniformly formed on the inner wall of the mounting hole.
9. A high-voltage power distribution unit, characterized by comprising a shell, a high-voltage relay arranged in the shell, and a bracket of a vehicle body, wherein a plurality of high-voltage relay vibration damping structures according to any one of claims 1 to 8 are arranged on the shell;
the high-voltage relay vibration damping structure comprises an elastic cushion block and a supporting sleeve, the shell is arranged on the elastic cushion block, the supporting sleeve comprises a sleeve and a blocking portion located at one end of the sleeve, the sleeve is arranged in the mounting hole, the blocking portion blocks a first end portion of the elastic cushion block, the support is arranged at a second end portion of the elastic cushion block, and a fastener penetrating through the sleeve and a support of the vehicle body is arranged in the sleeve.
10. The high voltage power distribution unit of claim 9, wherein the outer surface of the resilient pad is provided with a groove; the shell is provided with a protruding portion, the protruding portion is provided with a mounting groove matched with the outer surface of the elastic cushion block, and the inner wall of the mounting groove is provided with a protrusion matched with and clamped by the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020173460.5U CN211654705U (en) | 2020-02-14 | 2020-02-14 | High-voltage relay vibration reduction structure and high-voltage power distribution unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020173460.5U CN211654705U (en) | 2020-02-14 | 2020-02-14 | High-voltage relay vibration reduction structure and high-voltage power distribution unit |
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| Publication Number | Publication Date |
|---|---|
| CN211654705U true CN211654705U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020173460.5U Active CN211654705U (en) | 2020-02-14 | 2020-02-14 | High-voltage relay vibration reduction structure and high-voltage power distribution unit |
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| Country | Link |
|---|---|
| CN (1) | CN211654705U (en) |
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2020
- 2020-02-14 CN CN202020173460.5U patent/CN211654705U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220106 Address after: 511434 No. 36, Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AION New Energy Vehicle Co.,Ltd. Address before: 510030 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |