High-voltage contactor mounting structure

Abstract

The utility model discloses a high-voltage contactor installation structure, which comprises a contactor body, a fixed sleeve shell and a fixed clamp, the fixed sleeve shell is sleeved at the lower part of the contactor body, the fixed clamp is arranged at the upper end of the contactor body, the lower end of the fixed clamp is provided with an elastic bulge, and the elastic bulge is arranged on the contactor body. And the elastic bulge is tightly propped against the upper end of the contactor body. Through the application of the utility model, a mounting structure suitable for the high-voltage contactor is provided, and the high-voltage contactor can be limited in the X direction, the Y direction and the Z direction, so that the high-voltage contactor is ensured to be high in mounting stability and good in working reliability; the utility model has the advantages of simple structure, convenient installation and disassembly, and low production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of battery charging and discharging, in particular to a high-voltage contactor installation structure. Background Art

[0002] More commonly, a corresponding BDU unit, or power cut-off unit, is designed inside the battery pack to achieve functions such as charge and discharge control and circuit overload and short circuit protection. Common BDU units on the market generally include a shell, and functional components such as copper busbars, relays, and contactors contained in the shell.

[0003] However, in existing BDU units, the contactors are often simply positioned and installed based on their internal groove structure, so that when the battery pack is installed on a corresponding product, such as a car, its movement may cause the position of the contactor to shift, directly affecting the normal use of the BDU unit and the corresponding battery pack, and reliability is difficult to guarantee. Utility Model Content

[0004] In view of this, in order to solve the above problems, the purpose of the utility model is to provide a high-voltage contactor mounting structure, including: a contactor body, a fixed sleeve and a fixed clip, the fixed sleeve is sleeved on the lower part of the contactor body, the fixed clip is arranged at the upper end of the contactor body, and an elastic protrusion is arranged at the lower end of the fixed clip, and the elastic protrusion is tightly abutted against the upper end of the contactor body.

[0005] In another preferred embodiment, the upper end of the fixed housing is open, an accommodating space is formed inside the fixed housing, and the lower portion of the contactor body extends into the accommodating space.

[0006] In another preferred embodiment, the upper portion of the contactor body is arranged to protrude from the upper end of the fixed sleeve.

[0007] In another preferred embodiment, it further comprises: two bolts, the lower end of the contactor body has a positive contact and a negative contact, and the two bolts are respectively connected to the positive contact and the negative contact.

[0008] In another preferred embodiment, two through holes are formed at the lower end of the fixing sleeve, and the two bolts are respectively inserted into the two through holes.

[0009] In another preferred embodiment, a spacer is provided at the lower end of the contactor body, and the spacer is provided between the positive contact and the negative contact.

[0010] In another preferred embodiment, a long hole is provided at the lower end of the fixing sleeve, and the spacer is extended into the long hole.

[0011] In another preferred embodiment, a plurality of positioning protrusions are arranged on the circumferential inner wall of the accommodating space, and each of the positioning protrusions is arranged in contact with the outer wall of the lower portion of the contactor body.

[0012] In another preferred embodiment, a plurality of contact protrusions are disposed at the bottom of the accommodating space, and the contact protrusions are disposed against the lower end of the contactor body.

[0013] In another preferred embodiment, the elastic protrusion includes: a first part, a second part and a third part connected in sequence, the first part and the third part are both connected to the fixed clip, and the second part abuts against the upper end of the contactor body.

[0014] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art: through the application of the utility model, a mounting structure suitable for a high-voltage contactor is provided, which can limit the high-voltage contactor in the X direction, the Y direction and the Z direction, ensuring that the installation stability and the working reliability are strong; the utility model has a simple structure, is convenient to install and disassemble, and has a low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a first exploded schematic diagram of a high-voltage contactor installation structure of the utility model;

[0016] Figure 2 It is a second exploded schematic diagram of a high-voltage contactor installation structure of the utility model;

[0017] Figure 3 The utility model is a schematic assembly diagram of a high-voltage contactor mounting structure.

[0018] In the attached figure:

[0019] 1. Contactor body; 2. Fixed housing; 3. Fixed clip; 4. Elastic protrusion; 5. Accommodation space; 6. Bolt; 7. Positive contact; 8. Negative contact; 9. Through hole; 10. Spacer; 11. Long hole; 12. Positioning protrusion; 13. Contact protrusion; 14. First part; 15. Second part; 16. Third part. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0021] like Figures 1 to 3As shown, a high-voltage contactor installation structure of a preferred embodiment is shown, comprising: a contactor body 1, a fixed housing 2 and a fixed clamp 3, wherein the fixed housing 2 is sleeved on the lower part of the contactor body 1, the fixed clamp 3 is arranged on the upper end of the contactor body 1, and an elastic protrusion 4 is arranged at the lower end of the fixed clamp 3, and the elastic protrusion 4 is arranged tightly against the upper end of the contactor body 1. Further, by setting the fixed housing 2, the lower end of the contactor body 1 is fixed by limiting at least in the X direction and the Y direction along the horizontal plane, and then the fixed clamp 3 is pressed against the upper end of the contactor body 1, at which time the elastic protrusion 4 is squeezed and stably pressed against the upper surface of the contactor body 1, thereby forming a limit to the contactor body 1 in the Z direction together with the bottom of the fixed housing 2.

[0022] Furthermore, as a preferred embodiment, the upper end of the fixed housing 2 is open, an accommodating space 5 is formed inside the fixed housing 2 , and the lower part of the contactor body 1 extends into the accommodating space 5 .

[0023] Further, as a preferred embodiment, the upper portion of the contactor body 1 is arranged to protrude from the upper end of the fixed housing 2. Further, the upper portion of the contactor body 1 is at least partially exposed to the outside of the fixed housing 2, which, on the one hand, realizes the corresponding limit function with less material, and on the other hand, avoids completely closing the periphery of the contactor body 1, which would cause difficulty in heat dissipation.

[0024] Furthermore, as a preferred embodiment, it also includes: two bolts 6. The lower end of the contactor body 1 has a positive contact 7 and a negative contact 8. The two bolts 6 are connected to the positive contact 7 and the negative contact 8 respectively.

[0025] Furthermore, as a preferred embodiment, two through holes 9 are formed at the lower end of the fixed housing 2, and two bolts 6 are respectively inserted into the two through holes 9.

[0026] Further, as a preferred embodiment, a spacer 10 is provided at the lower end of the contactor body 1, and the spacer 10 is provided between the positive contact 7 and the negative contact 8. Further, the upper end of the spacer 10 is integrally connected to the contactor body 1, and the spacer 10 is vertically provided on the lower surface of the contactor body 1.

[0027] Furthermore, as a preferred embodiment, a long hole 11 is provided at the lower end of the fixed housing 2, and the spacer 10 extends into the long hole 11.

[0028] Furthermore, as a preferred embodiment, a plurality of positioning protrusions 12 are disposed on the circumferential inner wall of the accommodating space 5 , and each positioning protrusion 12 is disposed in contact with the outer wall of the lower portion of the contactor body 1 .

[0029] Further, as a preferred embodiment, the inner contour of the accommodating space 5 is preferably arranged in a rectangular structure, which has at least one bottom surface arranged in the horizontal direction and four side surfaces arranged in the vertical direction, and the four side surfaces together form the above-mentioned circumferential inner wall.

[0030] Furthermore, as a preferred embodiment, at least part of the circumferential outer contour of the contactor body 1 is arranged in the shape of a rectangular body.

[0031] Furthermore, as a preferred embodiment, each positioning protrusion 12 is provided in a long strip structure.

[0032] Furthermore, as a preferred embodiment, each long strip structure is arranged along the vertical direction.

[0033] Furthermore, as a preferred embodiment, a plurality of contact protrusions 13 are disposed at the bottom of the accommodating space 5 , and the contact protrusions 13 are disposed against the lower end of the contactor body 1 .

[0034] Further, as a preferred embodiment, each contact protrusion 13 is arranged along the vertical direction.

[0035] Further, as a preferred embodiment, a plurality of contact protrusions 13 are sequentially arranged around the outer circumferences of the two through holes 9 .

[0036] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention.

[0037] The utility model also has the following implementation methods based on the above:

[0038] In a further embodiment of the utility model, it further comprises: a BDU additional component, and the BDU additional component is used to provide relative position fixation for the fixed clip 3 and the fixed housing 2 .

[0039] In a further embodiment of the utility model, the BDU accessory may preferably include: a snap-on structure, the snap-on structure at least includes a fastener and a clamping head, the fastener and the clamping head are respectively arranged on the fixed clip 3 or the fixed sleeve 2, the fastener and the clamping head are operably connected to each other, and at least one of the fixed clip 3 and the fixed sleeve 2 forms a limited fixation with the internal structure of the BDU.

[0040] In a further embodiment of the utility model, the BDU accessory may preferably also include: a lower support member and an upper support member, the fixed sleeve 2 is connected to the upper support member, the fixed clip 3 is connected to the lower support member, the upper support member and the lower support member are both components of the BDU, and can be operated to move away from and approach each other, and can be locked and positioned in the vertical direction after approaching each other.

[0041] In a further embodiment of the utility model, the elastic protrusion 4 includes: a first part 14, a second part 15 and a third part 16 connected in sequence, the first part 14 and the third part 16 are both connected to the fixed clip 3, and the second part 15 is against the upper end of the contactor body 1. Further, the first part 14 and the third part 16 are used to provide a support basis for the second part 15, and when the second part 15 is subjected to force, the second part 15 is driven to deform to a certain extent in a direction away from the contactor body 1; and a certain buffering effect can be achieved in the vertical direction through the deformation of the elastic protrusion 4.

[0042] In a further embodiment of the present invention, the first portion 14, the second portion 15 and the third portion 16 are all arranged in a sheet-like structure.

[0043] In a further embodiment of the present invention, the outer side of the fixed sleeve 2 is provided with reinforcing ribs extending in the vertical direction.

[0044] In a further embodiment of the utility model, the fixing clip 3 is arranged in a sleeve structure, and the fixing clip 3 has a lower surface with a through opening formed on the lower surface, and the elastic protrusion 4 is formed in the through opening, and the second part 15 is arranged to protrude downward at least relative to the through opening.

[0045] In a further embodiment of the present invention, the fixing clip 3 and the elastic protrusion 4 are an integrated structure.

[0046] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A high voltage contactor installation structure, characterized in that: include: A contactor body, a fixed sleeve and a fixed clip, wherein the fixed sleeve is sleeved on the lower part of the contactor body, the fixed clip is arranged on the upper end of the contactor body, and an elastic protrusion is arranged at the lower end of the fixed clip, and the elastic protrusion is tightly abutted against the upper end of the contactor body.

2. The high-voltage contactor installation structure according to claim 1, characterized in that: The upper end of the fixed shell is open, an accommodating space is formed inside the fixed shell, and the lower part of the contactor body extends into the accommodating space.

3. The high-voltage contactor installation structure according to claim 2, characterized in that: The upper part of the contactor body is protruding from the upper end of the fixing sleeve.

4. The high-voltage contactor installation structure according to claim 1, characterized in that: It also includes: two bolts, the lower end of the contactor body has a positive contact and a negative contact, and the two bolts are respectively connected to the positive contact and the negative contact.

5. The high-voltage contactor installation structure according to claim 4, characterized in that: The lower end of the fixing sleeve is provided with two through holes, and the two bolts are respectively inserted into the two through holes for arrangement.

6. The high-voltage contactor installation structure according to claim 4, characterized in that: A partition is arranged at the lower end of the contactor body, and the partition is arranged between the positive contact and the negative contact.

7. The high-voltage contactor installation structure according to claim 6, characterized in that: The lower end of the fixing sleeve is provided with an elongated hole, and the partition extends into the elongated hole.

8. The high-voltage contactor installation structure according to claim 2, characterized in that: A plurality of positioning protrusions are arranged on the circumferential inner wall of the accommodating space, and each of the positioning protrusions is arranged in contact with the outer wall of the lower part of the contactor body.

9. The high-voltage contactor installation structure according to claim 2, characterized in that: A plurality of contact protrusions are arranged at the bottom of the accommodating space, and the contact protrusions are arranged to abut against the lower end of the contactor body.

10. The high-voltage contactor installation structure according to claim 1, characterized in that: The elastic protrusion includes: a first part, a second part and a third part which are connected in sequence, the first part and the third part are both connected to the fixed clip, and the second part abuts against the upper end of the contactor body.

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