Deviation correcting device, battery pack cooling system and vehicle
Through the combined structure of moving parts and bias correction parts, the elastic parts absorb assembly tolerances, and solve the size and cost problems of the bias correction device, achieving miniaturization and lightweight.
Patent Information
- Application Number
- CN202422370043.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Existing deviation correction devices are difficult to achieve miniaturization and lightweighting, and are costly.
Using a combined structure of the moving part, the first and second correcting part in the bias correction device, the assembly tolerances are absorbed by the deformation of the first elastic member and the second elastic member, and the assembly tolerances in the vertical and horizontal directions are integrated to reduce the overall size of the part.
The deviation correction device is miniaturized and lightweight, reducing costs.
Smart Images
Figure CN223173944U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rectifying devices, and particularly provides a rectifying device, a battery pack cooling system and a vehicle. Background Art
[0002] The cooling system of a vehicle battery pack includes a water pipeline and a quick-change connection device. The water pipeline is usually divided into two parts. One part is near the battery pack, and the other part is at other positions of the vehicle (outside the battery pack installation position). It flows through the battery pack to absorb heat, and then returns to the pipeline at other positions of the vehicle for heat dissipation and cooling. Then it flows back to the pipeline near the battery pack to cool the battery pack through the flowing cooling liquid. For the convenience of vehicle assembly, the water pipeline near the battery pack is installed at the bottom of the vehicle together with the battery pack, and a quick-change connection device is used to connect the two parts of the pipeline. The quick-change connection device generally includes a vehicle-end connection device fixedly connected to the bottom of the vehicle and a pack-end connection device fixedly connected to the battery pack.
[0003] Moreover, in the actual production process, there are production errors between parts of the same type, and errors occur when different types of parts are assembled with each other. To be able to absorb tolerances and not affect assembly, the prior art absorbs the assembly tolerance in the vertical direction by setting a Z-direction spring in the middle part of the vehicle-end connection device, and absorbs the assembly tolerance in the horizontal direction by setting springs at the four corners around the vehicle-end connection device. Since the springs in the vertical direction and the horizontal direction are scattered, the part size is large, the cost is high, and it is difficult to miniaturize and lightweight the parts.
[0004] Correspondingly, a new technical solution is needed in this field to solve the above problems. Summary of the Utility Model
[0005] The utility model aims to solve the above technical problems, that is, to solve the problems that the existing rectifying device is difficult to be miniaturized, lightweight and has a high cost.
[0006] In a first aspect, the utility model provides a rectifying device. The rectifying device includes: a moving member, on which a first through hole is provided; a first rectifying member, at least part of which is located in the first through hole, and a second through hole is provided on the first rectifying member; a first elastic member, which is located in the first through hole and is configured to generate deformation when the first rectifying member moves along the radial direction of the first through hole; a second rectifying member, which is inserted into the second through hole; a second elastic member, which is sleeved outside the second rectifying member and is configured to generate deformation when the second rectifying member moves relative to the first rectifying member; when the moving member moves along the axial direction of the first through hole, it drives the first rectifying member and the second rectifying member to move relatively along the axial direction of the first through hole.
[0007] In the preferred technical solution of the above rectifying device, a first blocking portion is provided in the second through hole, a second blocking portion is provided on the second rectifying member, and two ends of the second elastic member are respectively connected to the first blocking portion and the second blocking portion.
[0008] In the preferred technical solution of the above rectifying device, a first limiting portion extends in a direction close to the first blocking portion on the outer side of the second blocking portion, and the first limiting portion and the first blocking portion jointly limit the moving distance of the first rectifying member relative to the second rectifying member.
[0009] In the preferred technical solution of the above rectifying device, a cavity is jointly formed by the outer sides of the first limiting portion, the first blocking portion, the second blocking portion and the second rectifying member, and the second elastic member is arranged in the cavity.
[0010] In the preferred technical solution of the above rectifying device, the first rectifying member includes a second limiting portion, an intermediate portion and a third limiting portion which are connected in sequence, the intermediate portion is arranged in the first through hole, and the second limiting portion and the third limiting portion are respectively arranged outside the first through hole.
[0011] In the preferred technical solution of the above rectifying device, the first end of the second rectifying member is used for being fixedly connected to a peripheral member, and a fourth limiting portion is arranged at the second end of the second rectifying member.
[0012] In the preferred technical solution of the above rectifying device, the rectifying device further includes a connecting pipe, a moving hole is provided on the moving member, the connecting pipe passes through the moving hole, and relative movement can occur between the connecting pipe and the moving hole.
[0013] In the preferred technical solution of the above rectifying device, a third blocking portion is provided on the connecting pipe, and during the movement of the connecting pipe, the third blocking portion abuts against the moving member to drive the moving member to move together.
[0014] In a second aspect, the present invention further provides a battery pack cooling system, and the battery pack cooling system includes the rectifying device according to any one of the above embodiments.
[0015] In a third aspect, the present invention further provides a vehicle, and the vehicle includes the battery pack cooling system according to the above embodiments.
[0016] In the case of adopting the above technical solution, the deviation rectifying device of the present utility model includes: a moving member provided with a first through hole; a first deviation rectifying member at least partially located in the first through hole, the first deviation rectifying member being provided with a second through hole; a first elastic member located in the first through hole and configured to deform when the first deviation rectifying member moves along the radial direction of the first through hole; a second deviation rectifying member passing through the second through hole; a second elastic member sleeved outside the second deviation rectifying member and configured to deform when the first deviation rectifying member moves relative to the second deviation rectifying member; the moving member moves along the axial direction of the first through hole, driving the first deviation rectifying member and the second deviation rectifying member to move relatively along the axial direction of the first through hole. The arrangement of the first deviation rectifying member and the first elastic member of the present utility model can absorb the assembly tolerance in the horizontal direction, the second deviation rectifying member and the second elastic member can absorb the assembly tolerance in the vertical direction, and the first deviation rectifying member and the second deviation rectifying member are integrally arranged, reducing the overall size of the parts and being more miniaturized and lightweight. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings, in which:
[0018] Figure 1 is a structural diagram of a car-end connection device and a wrap-end connection device in the prior art;
[0019] Figure 2 is Figure 1 a structural diagram from another perspective;
[0020] Figure 3 is a structural diagram of the deviation rectifying device of the present utility model;
[0021] Figure 4 Figure is a cross-sectional view of the first deviation rectifying member and the second deviation rectifying member of the present utility model;
[0022] REFERENCE NUMERALS:
[0023] 10. Moving member; 101. First through hole; 11. First deviation rectifying member; 111. Second limiting portion; 112. Intermediate portion; 113. Third limiting portion; 114. First blocking portion; 115. Second through hole; 12. Second deviation rectifying member; 121. Second blocking portion; 12^{2}. First limiting portion; 123. Fourth limiting portion; 124. Third through hole; 13. First elastic member; 14. Second elastic member; 15. Connecting pipe; 151. First section pipe; 152. Second section pipe; 153. Third blocking portion; 16. First plate member; 17. Bolt; 18. Spring; 19. Wrap-end pipe; 20. Second plate member; 201. Moving hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention. Those skilled in the art can make adjustments according to needs to adapt to specific application scenarios.
[0025] It should be noted that in the description of the present invention, the terms indicating the direction or positional relationship such as "upper", "lower", "front", "rear", "left", "right", etc. are based on the direction or positional relationship shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0026] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "communicated" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two components or the contact connection where two components abut against each other. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0027] First, refer to Figure 1 , Figure 1 which is a connection device in the prior art that can achieve quick disassembly and replacement. It can be divided into a vehicle-end connection device and a battery-pack-end connection device. The boundary between the vehicle-end connection device and the battery-pack-end connection device can refer to the dividing line A in Figure 2 . Above the dividing line A is the vehicle-end connection device, and below the dividing line A is the battery-pack-end connection device. The division of the dividing line A only represents the external components shown and does not mean that the internal components are also divided into the vehicle-end connection device or the battery-pack-end connection device according to the dividing line A. The battery-pack-end connection device is fixedly connected to the battery pack. When the battery pack is replaced and installed, the battery pack and the battery-pack-end connection device need to be installed together. During the upward movement of the battery pack, the battery-pack-end connection device is driven to move upward together. The vehicle-end connection device is fixed to the bottom of the vehicle through the first alignment member 11. The four corners of the second plate member 20 are provided with the first alignment member 11 and horizontal springs ( Figure 1 and Figure 2(not shown in the figure), the horizontal spring can enable the second plate 20 to move horizontally to absorb the assembly tolerance in the horizontal direction. A moving hole 201 is provided on the second plate 20, and the connecting pipe 15 is inserted into the moving hole 201 and can move up and down in the moving hole 201. The first plate 16 and the second plate 20 are relatively parallel. The first plate 16 is fixedly connected to the connecting pipe 15. A spring 18 is provided between the second plate 20 and the first plate 16. The bolt 17 passes through the first plate 16, the spring 18, and the second plate 20 in sequence from bottom to top. During the installation process, after the connecting pipe 15 contacts the end-covering pipe 19, the connecting pipe 15 continues to move upward with the battery pack, and the first plate 16 will also move upward. The second plate 20 can only move horizontally and cannot move vertically. The first plate 16 compresses the spring 18, and the spring 18 can absorb the assembly tolerance in the vertical direction. However, in the above method, the spring 18 that absorbs the tolerance in the vertical direction and the spring that absorbs the tolerance in the horizontal direction are separately provided, occupying space, making the part size larger, and the cost higher, and it is difficult to achieve miniaturization and lightweight of the parts.
[0028] Refer to Figure 3 and Figure 4 , the present invention provides a deviation rectifying device to solve the above problems. The deviation rectifying device (which can be understood as a vehicle-end connection device) includes: a moving member 10, on which a first through hole 101 is provided; a first deviation rectifying member 11, at least part of which is located in the first through hole 101, and a second through hole 115 is provided on the first deviation rectifying member 11; a first elastic member 13, located in the first through hole 101 and configured to generate deformation when the first deviation rectifying member 11 moves along the radial direction of the first through hole 101; a second deviation rectifying member 12, inserted into the second through hole 115, and a second elastic member 14, sleeved outside the second deviation rectifying member 12 and configured to generate deformation when the first deviation rectifying member 11 moves relative to the second deviation rectifying member 12; the moving member 10 moves along the axial direction of the first through hole 101, driving the first deviation rectifying member 11 and the second deviation rectifying member 12 to move relatively along the axial direction of the first through hole 101.
[0029] Specifically, the second alignment member 12 is used to be fixedly connected to the bottom of the vehicle. Since the second alignment member 12 is disposed within the first alignment member 11 and the first alignment member 11 is fixed in the horizontal direction, the moving member 10 and the first alignment member 11 can move relative to each other in the horizontal direction. When the moving member 10 moves in the horizontal direction, the first elastic member 13 deforms to absorb the assembly tolerance in the horizontal direction. When the moving member 10 moves upward or downward, it can drive the first alignment member 11 to move upward or downward together. Since the second alignment member 12 is fixed, the first alignment member 11 moves relative to the second alignment member 12, and the second elastic member 14 deforms to absorb the assembly tolerance in the vertical direction. The present utility model integrally disposes the components for absorbing tolerances in the vertical and horizontal directions at the first through hole 101, reducing the part size and cost, and making the parts more miniaturized and lightweight.
[0030] Continue to refer to Figure 4 , as Figure 4 shown, a first blocking portion 114 is disposed within the second through hole 115, and a second blocking portion 121 is disposed on the second alignment member 12. Two ends of the second elastic member 14 are respectively connected to the first blocking portion 114 and the second blocking portion 121. Specifically, the second elastic member 14 is a cylindrical spring sleeved on the second alignment member 12. The second blocking portion 121 is located above the first blocking portion 114. The upper end of the second elastic member 14 is connected to the second blocking portion 121, and the lower end of the second elastic member 14 is connected to the first blocking portion 114. When the first alignment member 11 and the second alignment member 12 move relative to each other, the first blocking portion 114 and the second blocking portion 121 move away from or close to each other, and the second elastic member 14 deforms to absorb the assembly tolerance in the vertical direction.
[0031] In the present preferred embodiment, when viewed from top to bottom, the shapes of the first blocking portion 114 and the second blocking portion 121 are annular. Of course, this is not restrictive. The second blocking portion 121 may also be a plurality of protrusions disposed in a surrounding manner on the outer side of the second alignment member 12, and the first blocking portion 114 may also be a plurality of protrusions disposed in a surrounding manner on the inner wall of the second through hole 115. Those skilled in the art can set according to actual situations.
[0032] The second elastic member 14 is preferably a cylindrical spring, and may also be a leaf spring. The sheet-like leaf spring is vertically disposed, or a sheet-like elastic member, or other types of elastic members. Those skilled in the art can set according to actual situations.
[0033] In some other embodiments, the first blocking portion 114 is located above the second blocking portion 121. When the first alignment member 11 moves upward, the spring has a tendency to be stretched, and when the first alignment member moves downward, the spring has a tendency to be compressed.
[0034] Continue to refer to Figure 4 In this preferred embodiment, a first limiting portion 122 extends from the outer side of the second blocking portion 121 towards the direction close to the first blocking portion 114. The first limiting portion 122 and the first blocking portion 114 jointly limit the moving distance of the first alignment member 11 relative to the second alignment member 12. Specifically, the second blocking portion 121 and the first limiting portion 122 are integrally connected and formed, and their shape is barrel-shaped, located in the upper half of the second alignment member 12. The first limiting portion 122 is also located above the first blocking portion 114. When the first limiting portion 122 and the first blocking portion 114 are in contact with each other, the first alignment member 11 cannot move upward anymore. That is to say, the upward moving distance of the first alignment member 11 is the distance between the lower end surface of the first limiting portion 122 and the first blocking portion 114.
[0035] Furthermore, a cavity (not marked in the figure) is jointly formed by the outer side surfaces of the first limiting portion 122, the first blocking portion 114, the second blocking portion 121, and the second alignment member 12. The second elastic member 14 is arranged in the cavity. Both the first blocking portion 114 and the second blocking portion 121 are in the axial direction of the second through hole 115, so that the second elastic member 14 is in a compressed state.
[0036] In other embodiments, the first limiting portion 122 may also be a strip-shaped structure or a columnar structure extending downward.
[0037] Furthermore, in this preferred embodiment, one end surface of the second through hole 115 is the first end surface B, and one end surface of the second alignment member 12 located outside the first end surface B of the second through hole 115 is the second end surface C. In the initial state of the second elastic member 14, the distance between the first end surface B and the second end surface C is greater than or equal to the distance between the first limiting portion 122 and the first blocking portion 114. The purpose of such a setting is to prevent the first end surface B from moving upward beyond the second end surface C and being damaged by impact.
[0038] Continue to refer to Figure 4 The first alignment member 11 includes a second limiting portion 111, an intermediate portion 112, and a third limiting portion 113 that are connected in sequence. The intermediate portion 112 is located in the first through hole 101, and the intermediate portion 112 extends out of the first through hole 101 both above and below. The second limiting portion 111 and the third limiting portion 113 are respectively located at both ends outside the first through hole 101. Specifically, the length of the second limiting portion 111 in the horizontal direction is greater than the diameter of the first through hole 101, and the length of the third limiting portion 113 in the horizontal direction is greater than the diameter of the first through hole 101. When the moving member 10 moves upward, it abuts against the second limiting portion 111, causing the first alignment member 11 to move upward.
[0039] Further, the second limiting portion 111 and the middle portion 112 are connected by threads, the middle portion 112 and the third limiting portion 113 are connected by threads, and the second through hole 115 penetrates through the second limiting portion 111, the middle portion 112 and the third limiting portion 113.
[0040] In this preferred embodiment, the second end face C is connected to the bottom of the vehicle and is fixed. In some other embodiments, the end face of the second deviation rectifying member 12 opposite to the second end face C is the third end face, and the third end face is fixedly connected to the bottom of the vehicle and is fixed. The distance between the third end face and the third limiting portion 113 is greater than or equal to the distance between the first limiting portion 122 and the first blocking portion 114, and the function of deviation rectification can still be achieved, and the assembly tolerances in the vertical and horizontal directions can still be absorbed.
[0041] In some other embodiments, the difference from this preferred embodiment lies in the first deviation rectifying member 11, and the first deviation rectifying member 11 only includes the second limiting portion 111 and the middle portion 112.
[0042] Refer to Figure 4 , the first elastic member 13 is a spring and is arranged around the middle portion 112. The two ends of the first elastic member 13 are thin and the middle is thick. When the moving member 10 moves left and right, due to the thicker middle position of the spring, it will be squeezed and deformed.
[0043] In some other examples, the number of the first elastic members 13 is multiple cylindrical springs. The axes of the cylindrical springs are horizontally arranged left and right. The multiple cylindrical springs are arranged around the middle portion 112. One end of the cylindrical spring is connected to the inner wall of the first through hole 101, and the other end is connected to the middle portion 112.
[0044] In addition, in this preferred embodiment, one end of the second deviation rectifying member 12 is used to be fixedly connected to the peripheral member. A third through hole 124 is provided on the second deviation rectifying member 12, and the peripheral member can be connected by passing a bolt through the third through hole 124; a fourth limiting portion 123 is provided at the other end of the second deviation rectifying member 12. The fourth limiting portion 123 is located outside the second through hole 115, restricting the downward movement of the first deviation rectifying member 11, and further restricting the downward movement of the moving member 10. When applying the deviation rectifying device of the present invention to a vehicle, the peripheral member is a bottom component of the vehicle. When applying the deviation rectifying device of the present invention to other equipment, the peripheral member is a component of other equipment.
[0045] Refer to Figure 3 , the deviation rectifying device further includes a connecting pipe 15. The moving member of the present invention is equivalent to Figure 2 the second plate member 20 in
[0046] Further, a third blocking portion 153 is provided on the connecting pipe. During the movement of the connecting pipe 15, the third blocking portion 153 abuts against the moving member 10 and drives the moving member 10 to move together. Specifically, as Figure 3 shown, the connecting pipe 15 includes a first-stage pipe 151 and a second-stage pipe 152. The diameter of the first-stage pipe 151 is larger than that of the second-stage pipe 152. Therefore, a third blocking portion 153 is formed at the connection between the first-stage pipe 151 and the second-stage pipe 152. When the battery pack is installed, the end-pack connecting device presses the connecting pipe 15 upward. When the connecting pipe 15 moves upward and the third blocking portion 153 contacts the lower end surface of the moving member 10, it will abut against the lower end surface of the moving member 10, causing the moving member 10 to move upward. The second elastic member 14 absorbs the tolerance in the vertical direction. When the battery pack moves left and right, it will drive the end-pack connecting device to move left and right. The end-pack connecting device drives the connecting pipe 15 to move left and right. After the connecting pipe 15 shakes back and forth and left and right, the force is transmitted to the moving member 10, and the first elastic member 13 absorbs the assembly tolerance in the horizontal direction.
[0047] The third blocking portion 153 can also be a blocking block provided on the outer side of the connecting pipe 15, as long as it can drive the moving member 10 to move upward.
[0048] The end-pack connecting device includes an end-pack pipe 19. After the battery pack is installed in place, the end-pack pipe 19 is in communication with the connecting pipe 15. The number of end-pack pipes 19 and connecting pipes 15 is both set to two. Of course, those skilled in the art can set their numbers by themselves.
[0049] Compared with the prior art, the present utility model omits the spring 18, the first plate member 16, and the bolt 17, and changes the second plate member 20 that could not move up and down originally into a moving member 10 that can move up and down.
[0050] Further, the number of the first through holes 101 is set to be multiple, and the multiple first through holes 101 are arranged around the circumference of the moving member 10. Preferably, there are 4 first through holes 101, which are arranged at the four corners of the moving member 10 (in a plate shape) in an array.
[0051] In a second aspect, the present utility model also claims to protect a battery pack cooling system, and the battery pack cooling system includes the deviation correction device described in any one of the above embodiments.
[0052] In a third aspect, the present utility model also claims to protect a vehicle, and the vehicle includes the battery pack cooling system described in the above embodiments.
[0053] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.
Claims
1. A deviation rectifying device, characterized in that, The deviation correction device includes: A moving member, on which a first through hole is provided; A first deviation correction member, at least a part of which is located in the first through hole, and a second through hole is provided on the first deviation correction member; A first elastic member, which is located in the first through hole and is configured such that when the first deviation correction member moves in the radial direction of the first through hole, the first elastic member deforms; A second deviation correction member, which is inserted through the second through hole; A second elastic member, which is sleeved outside the second deviation correction member and is configured such that when the second deviation correction member moves relative to the first deviation correction member, the second elastic member deforms; When the moving member moves in the axial direction of the first through hole, it drives the first deviation correction member and the second deviation correction member to move relatively in the axial direction of the first through hole.
2. The deviation rectifying device according to claim 1, characterized in that, A first blocking portion is provided in the second through hole, a second blocking portion is provided on the second deviation correction member, and two ends of the second elastic member are respectively connected to the first blocking portion and the second blocking portion.
3. The deviation rectifying device according to claim 2, wherein A first limiting portion extends from the outer side of the second blocking portion towards the direction close to the first blocking portion, and the first limiting portion and the first blocking portion jointly limit the moving distance of the first deviation correction member relative to the second deviation correction member.
4. The deviation rectifying device according to claim 3, characterized in that, The first limiting portion, the first blocking portion, the second blocking portion and the outer side surface of the second deviation correction member jointly form a cavity, and the second elastic member is arranged in the cavity.
5. The deviation rectifying device according to any one of claims 1 to 4, characterized in that, The first deviation correction member includes a second limiting portion, an intermediate portion and a third limiting portion which are connected in sequence. The intermediate portion is arranged in the first through hole, and the second limiting portion and the third limiting portion are respectively arranged outside the first through hole.
6. The deviation rectifying device according to any one of claims 1 to 4, characterized in that The first end of the second deviation correction member is used for fixedly connecting with an external member, and a fourth limiting portion is provided at the second end of the second deviation correction member.
7. The deviation rectifying device according to any one of claims 1 to 4, characterized in that, The deviation correction device further includes a connecting pipe. A moving hole is provided on the moving member, the connecting pipe is inserted through the moving hole, and relative movement can occur between the connecting pipe and the moving hole.
8. The deviation rectifying device according to claim 7, characterized in that, A third blocking portion is provided on the connecting pipe. During the movement of the connecting pipe, the third blocking portion abuts against the moving member to drive the moving member to move together.
9. A battery pack cooling system, characterized in that, The battery pack cooling system includes the deviation correction device according to any one of claims 1 to 8.
10. A vehicle, characterized in that, The vehicle includes the battery pack cooling system according to claim 9.