Contactor fixing structure

Abstract

The utility model discloses a contactor fixing structure, comprising a housing in which an accommodating space is formed; the contactor is mounted in the accommodating space; the first limiting component is arranged at one end of the contactor, a first clamping piece is arranged at the upper end of the first limiting component, and the first clamping piece abuts against the upper edge of one end of the contactor; and the two second limiting parts are respectively arranged on two sides of the contactor, the upper end of each second limiting part is provided with two second clamping pieces, and the second clamping pieces abut against the upper edge of one side of the contactor. Through the application of the contactor fixing structure suitable for the BDU distribution box, the contactor can be stably installed in the shell through the arrangement of the first limiting part and the second limiting part, and the cooperation of fasteners such as bolts is not needed, so that the installation and the disassembly are more convenient; and the internal space of the BDU distribution box is optimized, so that the miniaturization design of the BDU distribution box is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery disconnection units, in particular to a contactor fixing structure. Background Art

[0002] At present, with the further popularization of electric vehicles, designers are paying more and more attention to the design of battery packs. The quality of battery packs directly affects the endurance of the car. More commonly, a BDU, or battery disconnection unit, is set in the battery pack, also known as a high-voltage distribution box. The shell of this BDU distribution box generally integrates components such as relays, high-voltage copper bars and contactors to achieve functions such as high-voltage charge and discharge control and circuit overload short-circuit protection.

[0003] However, when the existing BDU distribution box is installed, the installation stability of the contactor will directly affect the operation of the BDU distribution box. It is more common on the market to set an additional extension part at the tail of the contactor, and connect and fix the extension part to the inside of the shell through fasteners such as bolts. However, on the one hand, this bolt-fixed connection method is inconvenient during installation and disassembly. On the other hand, due to the setting of the extension part, it also occupies the internal space of the shell, which is not conducive to the miniaturization design of the BDU distribution box. 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 contactor fixing structure, including:

[0005] A housing, wherein a housing is formed in the housing;

[0006] A contactor, the contactor being detachably mounted in the accommodating space;

[0007] A first limiting component, wherein the lower end of the first limiting component is fixedly connected to the bottom of the accommodating space, the first limiting component is arranged at one end of the contactor, and a first clamping member is arranged at the upper end of the first limiting component, and the first clamping member abuts against the upper edge of one end of the contactor;

[0008] Two second limiting components, the lower ends of the two second limiting components are fixedly connected to the bottom of the accommodating space, the two second limiting components are respectively arranged on both sides of the contactor, and the upper end of each second limiting component is provided with two second clamps, and the second clamps are against the upper edge of one side of the contactor.

[0009] In another preferred embodiment, the contactor has a length direction and a width direction. The first limiting member extends along the width direction, and the second limiting member extends along the length direction. The two second clamping members on each second limiting member are arranged in sequence along the length direction.

[0010] In another preferred embodiment, the first limiting member includes: a U-shaped member that extends along the vertical direction. The lower end of the U-shaped member is connected to the bottom of the accommodating space, and the first clamping member is arranged in the middle of the upper end of the U-shaped member.

[0011] In another preferred embodiment, the first limiting member further includes: two reinforcing bars that both extend along the vertical direction. The two reinforcing bars are both arranged on the side of the U-shaped member away from the contactor.

[0012] In another preferred embodiment, the first limiting member further includes: two first support bars that both extend along the vertical direction. The two first support bars are both arranged on the side of the U-shaped member close to the contactor, and the two first support bars are both abutted against one end of the contactor.

[0013] In another preferred embodiment, the second limiting member includes: a bottom bar and two limiting bars. The bottom bar extends along the length direction and is connected to the bottom of the accommodating space. The two limiting bars both extend along the vertical direction. The lower ends of the two limiting bars are sequentially connected to the bottom bar along the length direction, and the two second clamping members are respectively arranged at the upper ends of the two limiting bars.

[0014] In another preferred embodiment, the second limiting member further includes: two second support bars that both extend along the vertical direction. The two second support bars are respectively arranged on the sides of the two limiting bars close to the contactor, and the two second support bars are both abutted against one side of the contactor.

[0015] In another preferred embodiment, the second limiting member further includes: a support member that extends along the vertical direction. The lower end of the support member is connected to the bottom bar, and the horizontal cross-section of the support member is L-shaped.

[0016] In another preferred embodiment, one end of the support member is bent and extends outward and is connected to the vertical inner wall of the accommodating space.

[0017] In another preferred embodiment, the vertical cross-section of the second clamping member is triangular.

[0018] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art: By applying the utility model, a contactor fixing structure applicable to a BDU distribution box is provided. Through the arrangement of the first limiting component and the second limiting component, the contactor can be stably installed in the housing, and the cooperation of fasteners such as bolts is not required, making the installation and disassembly relatively convenient. Moreover, the internal space of the BDU distribution box is optimized, which is beneficial to the miniaturization design of the BDU distribution box and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is an installation schematic diagram of a contactor fixing structure of the utility model;

[0020] Figure 2 FIG. is a schematic diagram of the contactor fixing structure of the utility model without a contactor.

[0021] In the drawings:

[0022] 1. Housing; 2. Accommodating space; 3. Contactor; 4. First limiting component; 5. First clamping member; 6. Second limiting component; 7. Second clamping member; 8. U-shaped member; 9. Reinforcing strip; 10. First supporting strip; 11. Bottom strip; 12. Limiting strip; 13. Second supporting strip; 14. Supporting member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes the utility model with reference to the drawings and specific embodiments, but it is not intended to limit the utility model.

[0024] As Figure 1 and Figure 2 shown, a contactor fixing structure of a preferred embodiment is shown, including: a housing 1, an accommodating space 2 is formed in the housing 1; a contactor 3, the contactor 3 is detachably installed in the accommodating space 2; a first limiting component 4, the lower end of the first limiting component 4 is fixedly connected to the bottom of the accommodating space 2, the first limiting component 4 is arranged at one end of the contactor 3, and a first clamping member 5 is arranged at the upper end of the first limiting component 4, and the first clamping member 5 abuts against the upper edge of one end of the contactor 3; two second limiting components 6, the lower ends of the two second limiting components 6 are both fixedly connected to the bottom of the accommodating space 2, the two second limiting components 6 are respectively arranged on both sides of the contactor 3, and two second clamping members 7 are arranged at the upper end of each second limiting component 6, and the second clamping members 7 abut against the upper edge of one side of the contactor 3. Further, the above-mentioned housing 1 is the lower housing part of the BDU distribution box, the contactor 3 can extend into the limiting space formed by the first limiting component 4 and the second limiting component 6 from top to bottom, and after being squeezed by the first clamping member 5 and the second clamping member 7 and extending downward, the bottom of the contactor 3 contacts the bottom surface of the limiting space, and the first clamping member 5 and the second clamping member 7 are clamped at the upper edge of the contactor 3, thereby completing the limiting installation.

[0025] Further, as a preferred embodiment, the contactor 3 has a length direction and a width direction. The first limiting member 4 is arranged to extend along the width direction, and the second limiting member 6 is arranged to extend along the length direction. The two second engaging members 7 on each second limiting member 6 are arranged in sequence along the length direction.

[0026] Further, as a preferred embodiment, both the above-mentioned length direction and width direction are arranged along the horizontal plane, and the following vertical direction is the height direction of the contactor 3.

[0027] Further, as a preferred embodiment, the housing 1, the first limiting member 4 and the second limiting member 6 are arranged in an integral structure.

[0028] Further, as a preferred embodiment, the first limiting member 4 includes: a U-shaped member 8 which is arranged to extend along the vertical direction. The lower end of the U-shaped member 8 is connected to the bottom of the accommodating space 2, and the first engaging member 5 is arranged at the middle of the upper end of the U-shaped member 8.

[0029] Further, as a preferred embodiment, a first through opening is formed in a part of the housing 1 between the two lower ends of the U-shaped member 8.

[0030] Further, as a preferred embodiment, the first limiting member 4 further includes: two reinforcing bars 9 which are both arranged to extend along the vertical direction. The two reinforcing bars 9 are both arranged on the side of the U-shaped member 8 away from the contactor 3. Further, the strength of the U-shaped member 8 is enhanced by the arrangement of the reinforcing bars 9, and the reinforcing bars 9 are preferably perpendicularly connected to the U-shaped member 8.

[0031] Further, as a preferred embodiment, the first limiting member 4 further includes: two first supporting bars 10 which are both arranged to extend along the vertical direction. The two first supporting bars 10 are both arranged on the side of the U-shaped member 8 close to the contactor 3, and the two first supporting bars 10 are both abutted against one end of the contactor 3. Further, the first supporting bars 10 protrude from the surface of the U-shaped member 8, and the area of the side of the first supporting bars 10 close to the contactor 3 is much smaller than the area of the lower part of the U-shaped member 8 close to the contactor 3, so as to reduce the contact area with the contactor 3 and facilitate the detachment of the contactor 3 from the first limiting member 4 during installation and disassembly.

[0032] Further, as a preferred embodiment, the second limiting member 6 includes: a bottom bar 11 and two limiting bars 12. The bottom bar 11 is arranged to extend along the length direction and is connected to the bottom of the accommodating space 2. The two limiting bars 12 are both arranged to extend along the vertical direction, and the lower ends of the two limiting bars 12 are sequentially connected to the bottom bar 11 along the length direction. The two second engaging members 7 are respectively arranged at the upper ends of the two limiting bars 12.

[0033] Further, as a preferred embodiment, the second limiting component 6 further includes: two second support bars 13, both of which are extended in the vertical direction, and are respectively arranged on the side of the two limiting bars 12 close to the contactor 3, and both of the second support bars 13 are against one side of the contactor 3. Further, the second support bar 13 is arranged to protrude relative to the surface of the limiting bar 12, and the area of ​​the side of the second support bar 13 close to the contactor 3 is much smaller than the area of ​​the side of the limiting bar 12 close to the contactor 3, thereby reducing the contact area with the contactor 3, so as to facilitate the contactor 3 to be separated from the second limiting component 6 during installation and removal.

[0034] Further, as a preferred embodiment, the second limiting component 6 also includes: a support member 14, the support member 14 is extended in the vertical direction, the lower end of the support member 14 is connected to the bottom bar 11, and the horizontal cross-section of the support member 14 is L-shaped.

[0035] Further, as a preferred embodiment, the support member 14 is disposed at one end of the bottom strip 11 close to the first limiting component 4 .

[0036] Further, as a preferred embodiment, one end of one of the two support members 14 is bent, extends outward and is connected to the vertical inner wall of the accommodating space 2 .

[0037] 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.

[0038] The utility model also has the following implementation methods based on the above:

[0039] In a further embodiment of the present invention, the vertical cross section of the second clamping member 7 is arranged in a triangular shape.

[0040] In a further embodiment of the present invention, the vertical cross section of the first clamping member 5 is approximately triangular.

[0041] In a further embodiment of the present invention, two contacts are provided at one end of the contactor 3 away from the first limiting component 4 .

[0042] In a further embodiment of the present invention, a partition connected to the contactor 3 is provided between the two contacts.

[0043] In a further embodiment of the present invention, the partition is extended along the length direction of the contactor 3 and a gap is formed between the partition and the inner wall of the accommodating space 2 .

[0044] Furthermore, as a preferred embodiment, a second opening is formed in the housing 1 at the lower end of each limiting strip 12 .

[0045] 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 contactor fixing structure, characterized in that: Comprising: A housing, within which an accommodation space is formed; A contactor, which is detachably mounted within the accommodation space; A first limiting member, the lower end of which is fixedly connected to the bottom of the accommodation space, the first limiting member is disposed at one end of the contactor, and a first clamping member is provided at the upper end of the first limiting member, and the first clamping member abuts against the upper edge of one end of the contactor; Two second limiting members, the lower ends of both second limiting members are fixedly connected to the bottom of the accommodation space, the two second limiting members are respectively disposed on both sides of the contactor, and two second clamping members are provided at the upper end of each second limiting member, and the second clamping members abut against the upper edge of one side of the contactor.

2. The contactor fixing structure according to claim 1, characterized in that: The contactor has a length direction and a width direction, the first limiting member extends along the width direction, the second limiting member extends along the length direction, and the two second clamping members on each second limiting member are arranged in sequence along the length direction.

3. The contactor fixing structure according to claim 2, characterized in that: The first limiting member includes: a U-shaped member, the U-shaped member extends along the vertical direction, the lower end of the U-shaped member is connected to the bottom of the accommodation space, and the first clamping member is disposed at the middle of the upper end of the U-shaped member.

4. The contactor fixing structure according to claim 3, characterized in that: The first limiting member further includes: two reinforcing bars, both reinforcing bars extend along the vertical direction, and both reinforcing bars are disposed on the side of the U-shaped member away from the contactor.

5. The contactor fixing structure according to claim 3, characterized in that: The first limiting member further includes: two first support bars, both first support bars extend along the vertical direction, both first support bars are disposed on the side of the U-shaped member close to the contactor, and both first support bars abut against one end of the contactor.

6. The contactor fixing structure according to claim 2, characterized in that: The second limiting member includes: a bottom bar and two limiting bars, the bottom bar extends along the length direction and is connected to the bottom of the accommodation space, both limiting bars extend along the vertical direction, the lower ends of both limiting bars are sequentially connected to the bottom bar along the length direction, and the two second clamping members are respectively disposed at the upper ends of the two limiting bars.

7. The contactor fixing structure according to claim 6, characterized in that: The second limiting member further includes: two second support bars, both second support bars extend along the vertical direction, the two second support bars are respectively disposed on the sides of the two limiting bars close to the contactor, and both second support bars abut against one side of the contactor.

8. The contactor fixing structure according to claim 6, characterized in that: The second limiting member further includes: a support member, the support member extends along the vertical direction, the lower end of the support member is connected to the bottom bar, and the horizontal cross-section of the support member is L-shaped.

9. The contactor fixing structure according to claim 8, characterized in that: One end of the support member is bent and extends outward and is connected to the vertical inner wall of the accommodation space.

10. The contactor fixing structure according to claim 1, characterized in that: The vertical cross-section of the second clamping member is triangular.

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