Assembly device for vehicle body and battery pack

Abstract

The utility model relates to a vehicle, particularly provides an assembling device for a vehicle body and a battery pack, and aims to solve the problem that an interface of an existing battery pack is difficult to align with an interface of the vehicle body. In order to achieve the purpose, the assembling device for the vehicle body and the battery pack comprises a main body, a plurality of clamping pieces movably connected to the main body and a driving assembly in transmission connection with the clamping pieces. The driving assembly can drive the multiple clamping pieces to extend outwards in the radial direction. The driving assembly can further drive the multiple clamping pieces to be folded inwards. When the multiple clamping pieces extend outwards, the assembling device can be connected to the vehicle body. And meanwhile, the main body penetrates through the first interface, and the second interface of the battery pack can be sleeved on the main body, so that the first interface is aligned with the second interface. When the multiple clamping pieces are folded inwards, the assembling device can be separated from the first connector and the second connector. The assembling device can keep the first interface and the second interface aligned when the battery pack is installed, can also be detachably connected with a vehicle body, and is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vehicle, specifically provide a kind of for the assembly device of vehicle body and battery pack. BACKGROUND

[0002] Vehicle installs battery pack in the process, usually by multiple threaded fasteners battery pack is fixed to vehicle body. Battery pack and vehicle body are equipped with interface for circuit and cooling liquid flow path connection, to ensure that electric energy transmission and the normal operation of heat management system. Therefore, when installing battery pack, it needs to ensure the accurate docking of each interface, to avoid the problems such as electrical connection failure or cooling liquid leakage caused by poor docking. But in prior art, interface usually adopts through-hole structure, lack effective alignment guide design. This makes it difficult to quickly and accurately realize the alignment of interface during installation, resulting in low installation efficiency, and may even cause installation errors, affecting the overall performance and safety of vehicle.

[0003] Therefore, the prior art needs a kind of for the assembly device of vehicle body and battery pack to solve the above problems. SUMMARY

[0004] The utility model aims at solving the above technical problem, i.e. the interface of existing battery pack and vehicle body interface are difficult to align.

[0005] In the first aspect, the utility model provides an assembly device for vehicle body and battery pack, which comprises a main body, a plurality of clamping pieces movably connected to the main body, and a driving assembly in transmission connection with the clamping pieces.

[0006] The driving assembly can drive the plurality of clamping pieces to extend radially outward, so that the clamping pieces abut against the vehicle body, and the main body is arranged in the first interface of the vehicle body. The second interface on the battery pack is arranged on the main body, so that the first interface and the second interface are aligned.

[0007] The driving assembly can also drive the plurality of clamping pieces to retract inward, so that the assembly device can be separated from the first interface and the second interface.

[0008] In the specific embodiment of the above assembly device, the clamping piece is hinged to the main body, and a clamping jaw is protruded on the clamping piece. The driving assembly can drive the clamping piece to rotate, so that the clamping jaw extends outward or retracts inward.

[0009] In the specific embodiment of the above assembly device, the number of clamping pieces is two, and the two clamping pieces are symmetrically arranged along the axis of the assembly device.

[0010] In the embodiment of the assembly device, the number of the clamping members is more than two, and the plurality of clamping members are arranged around the axis of the assembly device.

[0011] In the embodiment of the assembly device, the driving assembly comprises a connecting rod and a linear driving assembly, the connecting rod is arranged in one-to-one correspondence with the clamping member, one end of the connecting rod is hinged to the clamping member, and the other end of the connecting rod is hinged to the linear driving assembly, the linear driving assembly is capable of moving in a straight line, and the linear driving assembly is capable of driving the clamping member to rotate through the connecting rod.

[0012] In the embodiment of the assembly device, the linear driving assembly comprises a nut and a screw rod, the screw rod is rotatably connected to the main body, the nut is screwed on the screw rod, and the connecting rod is hinged to the nut.

[0013] When the screw rod rotates, the nut is capable of moving along the threaded axis.

[0014] In the embodiment of the assembly device, the main body further comprises:

[0015] a rod head fixedly connected to one end of the rod body, the rod head comprises a plug-in part and an abutting part, the plug-in part is capable of extending into the first interface, and the abutting part and the clamping member are capable of being clamped at two ends of the first interface to enable the assembly device to be connected to the vehicle body.

[0016] The clamping member is hinged to the rod head.

[0017] In the embodiment of the assembly device, the main body further comprises:

[0018] a rod tail arranged at an end of the rod body away from the rod head, the rod tail is rotatably connected to the rod body, the screw rod is arranged through the rod head and the rod body and is fixedly connected to the rod tail.

[0019] When the rod tail rotates, the screw rod is capable of being driven to rotate.

[0020] In the embodiment of the assembly device, a tapered surface is arranged on the outer wall of the rod tail, the diameter of the tapered surface near one end of the rod body is greater than the diameter of the tapered surface away from the other end of the rod body.

[0021] In the embodiment of the assembly device, the clamping member abuts against the inner wall of the first interface to enable the assembly device to be connected to the vehicle body.

[0022] In the technical scheme, the driving assembly can drive the plurality of clamping pieces to extend outward or to be retracted inward. When the plurality of clamping pieces extend outward, the clamping pieces can abut against the vehicle body, so that the assembling device is connected to the vehicle body. Meanwhile, the main body is arranged in the first interface, and the second interface of the battery pack can be arranged on the main body, so that the first interface and the second interface are aligned. When the plurality of clamping pieces are retracted inward, the assembling device can be separated from the first interface and the second interface. The assembling device can keep the first interface and the second interface aligned when the battery pack is installed, and can be detachably connected to the vehicle body, so that the assembling device is convenient to use.

[0023] Further, the main body comprises a rod head, and the rod head comprises a plug-in part and an abutting part. The plug-in part can extend into the first interface. When the plug-in part extends into the first interface, the abutting part can abut against the end face of the first interface. The abutting part cooperates with the clamping piece, and can clamp the two side end faces of the first interface, so that the assembling device is fixed on the vehicle body.

[0024] Further, the main body comprises a rod tail. The driving assembly comprises a lead screw, and the lead screw is fixedly connected to the rod tail. The clamping piece can be driven to rotate by rotating the rod tail. The rod tail is arranged at one end of the main body away from the clamping piece, so that the user can operate conveniently.

[0025] Further, the outer wall of the rod tail is provided with a tapered surface, and the diameter of the tapered surface close to one end of the rod body is greater than the diameter of the tapered surface away from the other end of the rod body. When the rod tail extends into the second interface, the end with smaller diameter is easy to enter the second interface. This arrangement makes the process of installing the battery pack more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0026] The preferred embodiments of the present application will be described below with reference to the drawings, in which:

[0027] Figure 1 is a schematic view of the external structure of the assembling device provided by the present application;

[0028] Figure 2 is a schematic view of the internal structure of the assembling device provided by the present application, which shows the structure of the assembling device connected to the first interface, and the structure of the battery pack arranged at the rod tail;

[0029] Figure 3 is a schematic view of the local enlarged structure of the assembling device provided by the present application, which shows the structure of the assembling device extending into the first interface;

[0030] Figure 4 is a schematic view of the local enlarged structure of the assembling device provided by the present application, which shows the structure of the assembling device connected to the first interface, and the structure of the battery pack installed on the vehicle body;

[0031] Figure 5It is partial enlarged structure schematic view of the assembly device provided by the utility model, and the structure of the assembly device from the first interface and the second interface is shown in the figure.

[0032] List of reference signs:

[0033] 11, clamping piece; 111, clamping jaw; 12, connecting rod; 13, nut; 14, screw rod; 15, shaft body; 16, rod head; 161, insertion part; 162, abutting part; 17, rod tail; 171, conical surface;

[0034] 2, vehicle body; 21, first interface;

[0035] 3, battery pack; 31, second interface. DETAILED DESCRIPTION

[0036] The preferred embodiments of the utility model will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0037] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] To solve the problem that the interface of the existing battery pack is difficult to align with the vehicle body interface, the embodiment discloses an assembly device for a vehicle body and a battery pack. Referring to Figure 1 and Figure 2The first interface 21 is arranged on the vehicle body 2, and the second interface 31 is arranged on the battery pack 3. Both the first interface 21 and the second interface 31 are through holes. The assembling device comprises a main body, a clamping piece 11 and a driving assembly. The main body comprises a shaft body 15, a shaft head 16 and a shaft tail 17. The shaft body 15 is in a cylindrical tubular structure. The shaft head 16 is fixedly arranged at a first end of the shaft body 15. The shaft head 16 comprises an integrated plug-in part 161 and an abutting part 162. The plug-in part 161 is in a cylindrical shape, and the diameter of the plug-in part 161 is smaller than that of the first interface 21, so that the plug-in part 161 can be inserted into the first interface 21. The abutting part 162 is in a cylindrical shape, and the diameter of the abutting part 162 is larger than that of the second interface 31. The abutting part 162 is arranged at one end of the plug-in part 161, so that an annular plane is formed on the abutting part 162. When the plug-in part 161 is inserted into the first interface 21, the annular plane can abut against the end face of the first interface 21, so as to limit the distance of the plug-in part 161 inserted into the first interface 21. The shaft tail 17 is arranged at a second end of the shaft body 15, which is away from the shaft head 16. The shaft tail 17 is rotatably connected to the shaft body 15. A tapered surface 171 is arranged on the outer wall of the shaft tail 17. The diameter of the tapered surface 171 close to the shaft body 15 is larger than that away from the shaft body 15. Further, the main body is in a cylindrical rod-like structure, and the diameter of the main body is smaller than that of the second through hole, so that the main body can pass through the second through hole.

[0040] The clamping piece 11 is provided with a clamping jaw 111. One end of the clamping piece 11 is hingedly connected to the shaft head 16, so that the clamping piece 11 can rotate. In this embodiment, the number of the clamping pieces 11 is two, and the two clamping pieces 11 are arranged on the left and right sides of the main body axis. When the clamping piece 11 rotates away from the main body axis, the two clamping pieces 11 move away from each other, extend to the outside of the assembling device, and the two clamping jaws 111 can abut against the first interface 21. When the clamping piece rotates close to the main body axis, the two clamping pieces 11 move close to each other, and the assembling device can pass through the second interface 31. The clamping piece 11 and the plug-in part 161 of the shaft head 16 can be inserted into the first interface 21.

[0041] It should be noted that the number of the clamping pieces 11 is two in this embodiment, but this is not a limitation of the utility model. Those skilled in the art can use other arrangements in other embodiments without departing from the principles of the utility model, for example, the number of the clamping pieces 11 can be more than two, and the plurality of clamping pieces 11 can be uniformly arranged around the axis of the main body, which does not deviate from the basic principles of the utility model, and thus falls within the protection scope of the utility model.

[0042] The driving assembly comprises the connecting rods 12 and a linear driving assembly. The linear driving assembly comprises a screw rod 14 and a nut 13. One end of the screw rod 14 is fixedly connected with the rod tail 17, and the screw rod 14 can be driven to rotate when the rod tail 17 rotates. The screw rod 14 penetrates the inside of the main body. Specifically, the rod body 15 is a tubular structure, and the rod head 16 is provided with a through hole. The screw rod 14 penetrates the inside of the rod body 15 and the through hole of the rod head 16, and extends out of the through hole of the rod head 16 to the outside of the main body. The part of the screw rod 14 extending out of the through hole of the rod head 16 is provided with a threaded portion, and the nut 13 is screwed with the threaded portion. The connecting rods 12 are provided in one-to-one correspondence with the clamping pieces 11. In the embodiment, the number of the connecting rods 12 is two. One end of each connecting rod 12 is hingedly connected with a clamping piece 11, and the other end is hingedly connected with the nut 13. Due to the structure that the two connecting rods 12 connect the nut 13, when the screw rod 14 rotates, the nut 13 will not rotate, but move along the axial direction of the threaded portion. At the same time, the nut 13 drives the two clamping pieces 11 to rotate synchronously through the connecting rods 12, so that the two clamping pieces 11 approach or move away from each other.

[0043] The working principle of the assembly device is as follows: before the battery pack 3 is installed, the rod tail 17 is rotated to make the two clamping pieces 11 approach each other. Then, the clamping pieces 11 and the plug-in portion 161 of the rod head 16 are inserted into the first interface 21 of the vehicle body 2, which will be described in detail below. Figure 3 Then, the rod tail 17 is reversely rotated to make the two clamping pieces 11 move away from each other, so that the two clamping claws 111 are clamped to one end face of the first interface 21, and the abutting portion 162 of the rod head 16 abuts against the other end face of the first interface 21. In other words, the clamping claws 111 and the abutting portion 162 clamp the two ends of the first interface 21, so that the assembly device is fixedly connected to the vehicle body 2. Then, the battery pack 3 is installed on the vehicle body 2, and at the same time, the rod tail 17 is inserted into the second interface 31 of the battery pack 3, which will be described in detail below. Figure 2 Then, the battery pack 3 is continuously moved to move the battery pack 3 along the axial direction of the rod tail 17 and the rod body 15, which will be described in detail below. Figure 4 When the battery pack 3 abuts against the vehicle body 2, the rod tail 17 is rotated to make the two clamping pieces 11 approach each other. At this time, the assembly device can be separated from the vehicle body 2. Then, the assembly device is moved outward to separate it from the first interface 21 and the second interface 31, which will be described in detail below. Figure 5 .

[0044] It should be noted that the connection structure of the assembly device and the vehicle body 2 needs to be explained. Although the clamping claws 111 and the abutting portion 162 in the embodiment clamp the two ends of the first interface 21 to fixedly connect the assembly device to the vehicle body 2, this arrangement is not a limitation of the present application. Those skilled in the art can also use other arrangements in other embodiments without departing from the principles of the present application. For example, when the clamping pieces 11 extend outward, a plurality of clamping claws 111 abut against the inner wall of the first interface 21 to connect the assembly device to the vehicle body. This does not deviate from the basic principles of the present application, and therefore falls within the scope of the present application.

[0045] The assembling device can be connected to the first interface 21 on the vehicle body 2, and when the battery pack 3 is installed on the vehicle body 2, the main body of the assembling device can be passed through the second interface 31 of the battery pack 3, so that the first interface 21 and the second interface 31 are aligned. When the battery pack 3 is completed and fixed, the assembling device can be separated from the vehicle body 2 and the battery pack 3. Further, the tapered surface 171 on the tail 17 can guide the second interface 31, so that the connection of the battery pack 3 is easier.

[0046] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. On the premise of not deviating from the principles of the utility model, those skilled in the art can make equivalent changes or replacements to the related technical features, and the technical schemes after the changes or replacements will all fall within the protection scope of the utility model.

Claims

1. An assembly device for a vehicle body and a battery pack, characterized in that, It includes a main body, a plurality of snap-fit ​​components (11) movably connected to the main body, and a drive assembly that is drively connected to the snap-fit ​​components (11); The drive assembly can drive multiple of the snap-fit ​​pieces (11) to extend radially outward so that the snap-fit ​​pieces (11) abut against the vehicle body (2), and the main body passes through the first interface (21) of the vehicle body (2); the second interface (31) on the battery pack (3) is fitted onto the main body so that the first interface (21) and the second interface (31) are aligned; The drive assembly can also drive the plurality of the snap-fit ​​pieces (11) to retract inward so that the assembly device can disengage from the first interface (21) and the second interface (31).

2. The assembly device according to claim 1, characterized in that, The latching member (11) is hinged to the main body. The latching member (11) has a protruding claw (111). The driving component can drive the latching member (11) to rotate so that the claw (111) extends outward or retracts inward.

3. The assembly device according to claim 2, characterized in that, The number of the snap-fit ​​components (11) is two, and the two snap-fit ​​components (11) are arranged symmetrically on the left and right sides along the axis of the assembly device.

4. The assembly device according to claim 2, characterized in that, The number of the snap-fit ​​components (11) is more than two, and the multiple snap-fit ​​components (11) are arranged around the axis of the assembly device.

5. The assembly device according to claim 2, characterized in that, The drive assembly includes a connecting rod (12) and a linear drive assembly. The connecting rod (12) is configured to correspond one-to-one with the snap-fit ​​member (11). One end of the connecting rod (12) is hinged to the snap-fit ​​member (11), and the other end is hinged to the linear drive assembly. The linear drive assembly can move along a straight line, and the linear drive assembly can drive the snap-fit ​​member (11) to rotate through the connecting rod (12).

6. The assembly device according to claim 5, characterized in that, The linear drive assembly includes a nut (13) and a lead screw (14), the lead screw (14) being rotatably connected to the main body, the nut (13) being screwed to the lead screw (14), and the connecting rod (12) being hinged to the nut (13). When the lead screw (14) rotates, the nut (13) can move along the thread axis.

7. The assembly device according to claim 6, characterized in that, The subject also includes: The rod head (16) is fixedly connected to one end of the rod body (15) of the main body. The rod head (16) includes a plug-in part (161) and an abutment part (162). The plug-in part (161) can extend into the first interface (21). The abutment part (162) and the snap-fit ​​part (11) can be clamped at both ends of the first interface (21) so that the assembly device is connected to the vehicle body (2). The snap-fit ​​(11) is hinged to the rod head (16).

8. The assembly device according to claim 7, characterized in that, The subject also includes: The rod end (17) is located at one end of the rod body (15) away from the rod head (16). The rod end (17) is rotatably connected to the rod body (15). The lead screw (14) passes through the rod head (16) and the rod body (15) and is fixedly connected to the rod end (17). When the rod end (17) rotates, it can drive the lead screw (14) to rotate.

9. The assembly device according to claim 8, characterized in that, The outer wall of the rod tail (17) is provided with a tapered surface (171), and the diameter of the tapered surface (171) near the end of the rod body (15) is larger than the diameter of the end away from the rod body (15).

10. The assembly apparatus according to claim 1, characterized in that, The snap-fit ​​(11) abuts against the inner wall of the first interface (21) so that the assembly device is connected to the vehicle body (2).

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