Locating pin assembly, locating pin assembly with locating pin assembly and battery pack

Abstract

The utility model discloses a locating pin assembly and a locating pin assembly and a battery pack with the locating pin assembly, the locating pin assembly is used for locating the battery pack when the battery pack is installed in a whole vehicle, the locating pin assembly comprises a pin body, a connecting hole and an installation groove are formed in the pin body, the connecting hole extends in the axial direction of the pin body, and an opening is formed in one end of the pin body; the connecting hole is suitable for being connected with a fastener, and the mounting groove extends in the radial direction of the pin body and penetrates through the pin body; the telescopic structure can move between a stretching position and a retracting position, in the stretching position, the telescopic structure extends out of the two opening parts of the pin body from the mounting groove to form a stop part, and in the retracting position, the telescopic structure is completely located in the mounting groove. According to the positioning pin assembly disclosed by the utility model, the positioning pin assembly can be conveniently and easily detached from the battery pack after the battery pack and the whole vehicle are assembled, so that the weight of the whole vehicle can be reduced, and the positioning pin assembly can be repeatedly used, so that the production cost of the battery pack is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a positioning pin component and a positioning pin assembly and a battery pack having the same. Background Art

[0002] When the battery pack is assembled with the whole vehicle, the battery pack needs to be provided with locating pins to position it in the vehicle. After the battery pack is installed and fixed to the vehicle, the locating pin structure loses its function and the locating pin cannot be removed from the battery pack and remains in the battery pack structure, increasing the weight of the whole vehicle and making it impossible to reuse. The battery pack needs to be provided with a locating pin structure during production, which makes the cost of the battery pack relatively high. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a positioning pin assembly, which can be removed from the battery pack after the battery pack is installed with the whole vehicle, thereby reducing the weight of the whole vehicle, and the positioning pin assembly can be reused, thereby reducing the cost of the battery pack.

[0004] The utility model also provides a positioning pin assembly having the positioning pin component.

[0005] The utility model also provides a battery pack having the positioning pin assembly.

[0006] According to the first aspect of the utility model, the positioning pin assembly is used for positioning the battery pack when it is installed in the whole vehicle, and the positioning pin assembly includes: a pin body, the pin body is formed with a connecting hole and a mounting groove, the connecting hole extends along the axial direction of the pin body and forms an opening at one end of the pin body, the connecting hole is suitable for connecting with a fastener, the mounting groove extends along the radial direction of the pin body and passes through the pin body; a telescopic structure, the telescopic structure is movable between a stretched position and a retracted position, in the stretched position, the telescopic structure extends from the mounting groove at two opening parts of the pin body to form a stopper, and in the retracted position, the telescopic structure is completely in the mounting groove.

[0007] According to the locating pin assembly of the utility model, a pin body and a telescopic structure are arranged in the locating pin assembly, so that the telescopic structure can move between a stretched position and a retracted position, the telescopic structure forms a stopper in the stretched position, and the telescopic structure is completely located in the mounting groove of the pin body in the retracted position, so that the locating pin assembly can be conveniently and easily removed from the battery pack after the battery pack is assembled with the whole vehicle, thereby reducing the weight of the whole vehicle, and the locating pin assembly can be reused, thereby reducing the production cost of the battery pack.

[0008] In some embodiments of the utility model, the telescopic structure includes: a telescopic plate, two of which are arranged at intervals along the extension direction of the mounting groove, and in the stretched position, the two telescopic plates extend from two openings of the mounting groove respectively, and the parts of the telescopic plates extending out of the openings of the mounting groove form the stopper; an elastic member, which extends along the extension direction of the mounting groove, the elastic member is connected between the two telescopic plates, and the elastic member is suitable for elastic deformation along the extension direction of the mounting groove, wherein in the stretched position, the elastic member is in a tensioned state.

[0009] In one embodiment of the utility model, the mounting groove is communicated with the connecting hole, and the positioning pin assembly also includes a pushing member, which is movably disposed in the connecting hole, and the pushing member has a pushing portion. In the stretched position, the pushing portion is disposed between the two telescopic plates, and the pushing portion abuts against the end edges of the two telescopic plates respectively to tension the elastic member. In the contracted position, the pushing member is located on one side of the telescopic structure in the axial direction of the pin body.

[0010] In some examples of the present utility model, the pushing member includes: a threaded section and a tapered section, the threaded section is threadedly connected to the connecting hole, the tapered section is arranged at one end of the threaded section facing the telescopic structure, and in the axial direction of the pin body, the diameter of the tapered section gradually decreases toward the telescopic structure, and the tapered section forms the pushing portion.

[0011] In one example of the present invention, the diameter of the threaded segment is larger than the maximum diameter of the conical segment, and an abutment surface is formed at one end of the threaded segment facing the telescopic structure. In the stretched position, the one end of the threaded segment is abutted and fixed to the telescopic plate via the abutment surface.

[0012] In an example of the present invention, the threaded section is provided with a mounting groove, and an opening of the mounting groove is arranged away from the tapered section.

[0013] In one embodiment of the present invention, the telescopic structure is symmetrical about the axis of the pin body.

[0014] The positioning pin assembly according to the second aspect of the utility model includes: the positioning pin assembly according to the first aspect of the utility model; a fastener, the fastener having a mating portion, the fastener is arranged at one end of the pin body and is threadedly connected to the connecting hole, and the mating portion is configured to cooperate with the stop portion to clamp and fix the pin body on the side beam of the battery pack.

[0015] According to the locating pin assembly of the utility model, by setting the locating pin assembly of the first aspect mentioned above, a pin body and a telescopic structure are provided in the locating pin assembly, the telescopic structure can move between a stretched position and a retracted position, the telescopic structure forms a stopper in the stretched position, and the telescopic structure is completely in the mounting groove of the pin body in the retracted position, so that the locating pin assembly can be conveniently and easily removed from the battery pack after the battery pack is assembled with the whole vehicle, thereby reducing the weight of the whole vehicle, and the locating pin assembly can be reused, so that the production cost of the battery pack is reduced.

[0016] The battery pack according to the third aspect of the utility model comprises: the positioning pin assembly according to the second aspect of the utility model; a box body, the box body comprises a side beam, the side beam is provided with a through hole passing through the side beam along a first direction, the pin body is penetrated through the through hole, and in the stretched position, the stop portion abuts against one side peripheral edge of the through hole, and the matching portion abuts against the other side peripheral edge of the through hole.

[0017] According to the battery pack of the utility model, by setting the positioning pin assembly of the second aspect mentioned above, a pin body and a telescopic structure are provided in the positioning pin assembly, the telescopic structure can move between a stretched position and a retracted position, the telescopic structure forms a stopper in the stretched position, and the telescopic structure is completely in the mounting groove of the pin body in the retracted position, so that the positioning pin assembly can be conveniently and easily removed from the battery pack after the battery pack is assembled with the whole vehicle, thereby reducing the weight of the whole vehicle, and the positioning pin assembly can be reused, so that the production cost of the battery pack is reduced.

[0018] In some embodiments of the utility model, a limiting groove is provided on the side beam, and the limiting groove is communicated with the through hole. In the stretched position, the stopper is limited and fixed in the limiting groove.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of a battery pack according to an embodiment of the utility model;

[0021] Figure 2 is a schematic diagram of a positioning pin assembly according to an embodiment of the utility model;

[0022] Figure 3 is a schematic diagram of a positioning pin assembly according to another angle of the embodiment of the utility model;

[0023] Figure 4 yes Figure 3 A cross-sectional view at AA shown in FIG.

[0024] Figure 5is a schematic diagram of a pin body according to an embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of the telescopic structure according to the embodiment of the utility model cooperating with the pushing member when the telescopic structure is in the stretched position;

[0026] Figure 7 is a schematic diagram of a telescopic structure according to an embodiment of the utility model in a retracted position;

[0027] Figure 8 is a schematic diagram of a pushing member according to an embodiment of the utility model;

[0028] Fig. 9 It is a schematic diagram of a pushing member according to an embodiment of the utility model from another angle.

[0029] Reference numerals:

[0030] 10. Positioning pin assembly;

[0031] 11. pin body; 111. mounting groove; 112. connecting hole;

[0032] 12. telescopic structure; 121. telescopic plate; 1211. stopper; 122. elastic member;

[0033] 13. Pushing member; 131. Threaded section; 1311. Assembly groove; 1312. Abutment surface; 132. Conical section;

[0034] 20. Fasteners;

[0035] 100, positioning pin assembly; 210, side beam; 211, limiting groove; 212, perforation;

[0036] 1000. Battery pack. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0038] First, reference 1 is made to briefly describe the battery pack 1000 according to the embodiment of the third aspect of the utility model. The battery pack 1000 is provided with a locating pin assembly 100. The battery pack 1000 is positioned and installed in the vehicle through the locating pin assembly 100. The locating pin assembly 100 is provided with a locating pin assembly 10 and a fastener 20. The locating pin assembly 100 is fixed in the battery pack 1000 through the locating pin assembly 10 and the fastener 20.

[0039] Reference below Figure 1-Figure 9 A positioning pin assembly 10 according to an embodiment of the first aspect of the present invention is described.

[0040] like Figure 1-Figure 9 As shown, the positioning pin assembly 10 according to the first embodiment of the utility model comprises: a pin body 11 and a telescopic structure 12. The pin body 11 is formed with a connecting hole 112 and a mounting groove 111. The connecting hole 112 is along the axial direction of the pin body 11 (such as Figure 1 The pin body 11 is provided with a connecting hole 112 and a mounting groove 111 extending in the radial direction of the pin body 11 and passing through the pin body 11; the telescopic structure 12 is movable between a stretched position and a retracted position; in the stretched position, the telescopic structure 12 extends from two opening parts of the mounting groove 111 on the pin body 11 to form a stopper 1211; in the retracted position, the telescopic structure 12 is completely in the mounting groove 111.

[0041] In this embodiment, a pin body 11 and a telescopic structure 12 are provided. The pin body 11 is formed with a connecting hole 112 and a mounting groove 111. The connecting hole 112 extends along the axial direction of the pin body 11 and forms an opening at one end of the pin body 11. Specifically, the bottom end of the pin body 11 can form an opening of the connecting hole 112. In this embodiment, the telescopic structure 12 is arranged in the mounting groove 111 and can move between a stretched position and a retracted position. In the stretched position, as shown in FIG. Figure 1 As shown, the telescopic structure 12 can extend from the two openings of the mounting slot 111 to form a stopper 1211. In the retracted position, as shown in FIG. Figure 2 and Figure 4 As shown, the telescopic structure 12 is completely located in the mounting groove 111 .

[0042] When the positioning pin assembly 10 is installed and fixed to the battery pack 1000, the telescopic structure 12 is in the stretched position, and the telescopic structure 12 forms a stopper 1211 in the radial direction of the pin body 11, so that the pin body 11 can be abutted and fixed to the side beam 210 of the battery pack 1000. Specifically, the pin body 11 is installed and fixed to the side beam 210 of the battery pack 1000, and the pin body 11 is penetrated on the side beam 210 along the thickness direction of the side beam 210, and the fastener 20 cooperates with the stopper 1211. The pin body 11 is clamped and fixed on the side beam 210 from both sides in the thickness direction of the side beam 210, so that the pin body 11 can be stably and securely fixed on the battery pack 1000. When the battery pack 1000 is assembled, the pin body 11 positions the battery pack 1000. After the battery pack 1000 is installed and fixed, the telescopic structure 12 can move to the retracted position, and the telescopic structure 12 is completely in the installation groove 111 of the pin body 11. At this time, the pin body 11 can be moved along the thickness direction of the side beam 210 (such as Figure 1 The fastener 20 is removed from the side beam 210 by passing through the side beam 210 (in the up-down direction shown).

[0043] It is understandable that when the pin body 11 is being positioned, the end of the pin body 11 that cooperates with the entire vehicle lacks the space required for removing the pin body 11 due to the limitations of the vehicle structure. In this embodiment, when the locating pin assembly 10 is assembled with the battery pack 1000, the telescopic structure 12 can be arranged on the side of the side beam 210 facing the end of the pin body 11 that cooperates with the entire vehicle, so that when the locating pin assembly 10 is removed, the locating pin assembly 10 can adjust the telescopic structure 12 to the retracted position, so that the locating pin assembly 10 can pass through the side beam 210 from the other side of the side beam 210, so that the locating pin can be easily removed from the battery pack 1000.

[0044] In this embodiment, a telescopic structure 12 is provided to be installed and fixed with the battery pack 1000. The structure is simple and the positioning pin assembly 10 can be easily removed from the battery pack 1000, thereby reducing the overall weight of the battery pack 1000 after installation in the vehicle, thereby reducing the weight of the entire vehicle. The removed positioning pin assembly 10 can be used in other battery packs 1000, so that the positioning pin assembly 10 can be reused, thereby greatly reducing the production cost of the battery pack 1000.

[0045] According to the positioning pin assembly 10 of the embodiment of the utility model, by arranging the pin body 11 and the telescopic structure 12 in the positioning pin assembly 10, the telescopic structure 12 can move between a stretched position and a retracted position, the telescopic structure 12 forms a stopper 1211 in the stretched position, and the telescopic structure 12 is completely in the installation groove 111 of the pin body 11 in the retracted position, so that the positioning pin assembly 10 can be conveniently and easily removed from the battery pack 1000 after the battery pack 1000 is assembled with the whole vehicle, thereby reducing the weight of the whole vehicle, and the positioning pin assembly 10 can be reused, so that the production cost of the battery pack 1000 is reduced.

[0046] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, the telescopic structure 12 may include: a telescopic plate 121 and an elastic member 122. Two telescopic plates 121 are provided. The two telescopic plates 121 are arranged at intervals along the extension direction of the mounting groove 111. In the stretched position, the two telescopic plates 121 extend from the two openings of the mounting groove 111 respectively, and the portion of the telescopic plate 121 extending from the opening of the mounting groove 111 forms a stopper 1211; the elastic member 122 extends along the extension direction of the mounting groove 111, and the elastic member 122 is connected between the two telescopic plates 121. The elastic member 122 is suitable for elastic deformation along the extension direction of the mounting groove 111, wherein, in the stretched position, the elastic member 122 is in a tensioned state.

[0047] In this embodiment, two telescopic plates 121 are arranged in the telescopic structure 12. The two telescopic plates 121 extend out from the two openings of the mounting groove 111 respectively when in the stretched position, thereby forming a stopper 1211. The mounting groove 111 can play a role of limiting and guiding the two telescopic plates 121, so that the two telescopic plates 121 can move stably along the radial direction of the pin body 11. The telescopic plates 121 have a simple structure and can be well stopped and fixed with the side beam 210 of the battery pack 1000. The elastic member 122 extends along the extension direction of the mounting groove 111 and is in a tensioned state when in the stretched position. When the telescopic structure 12 is adjusted from the stretched state to the retracted position, the two telescopic plates 121 can move stably under the action of the elastic member 122. The elastic member 122 has a simple structure, so that it is more convenient and reliable for the two telescopic plates 121 to move from the stretched position to the retracted position.

[0048] In one embodiment of the present invention, Figure 7 As shown, there may be a plurality of elastic members 122 , and the plurality of elastic members 122 are arranged at intervals in a direction perpendicular to the extending direction of the mounting groove 111 .

[0049] In this way, the elastic member 122 can exert a greater pulling force on the two telescopic plates 121, so that the two telescopic plates 121 can move to the retracted position more stably and reliably. For example, two, three, four, etc. elastic members 122 can be provided, and the number of elastic members 122 can be reasonably set according to actual needs.

[0050] In one embodiment of the present invention, Figure 4 As shown, the mounting groove 111 can be connected to the connecting hole 112, and the positioning pin assembly 10 can also include a pushing member 13, which is movably disposed in the connecting hole 112, and the pushing member 13 has a pushing portion. In the stretched position, the pushing portion is disposed between the two telescopic plates 121, and the pushing portion abuts against the end edges of the two telescopic plates 121, respectively, so that the elastic member 122 is tensioned. In the retracted position, the pushing member 13 is located on one side of the telescopic structure 12 in the axial direction of the pin body 11.

[0051] In this embodiment, a pushing member 13 is provided in the positioning pin assembly 10, and the pushing member 13 is movably provided in the connecting hole 112. In the stretched position, the pushing portion of the pushing member 13 abuts against the two telescopic plates 121, and can well resist the pulling force of the elastic member 122 on the two telescopic plates 121, so that the two telescopic plates 121 can be stably in the stretched position, so that the pin body 11 can be stably fixed to the side beam 210 of the battery pack 1000 through the stop portion 1211.

[0052] In the retracted position, the pushing member 13 is located on one side of the telescopic structure 12 in the axial direction of the pin body 11. When the telescopic structure 12 moves from the stretched position to the retracted position, the pushing portion can be withdrawn from between the two telescopic plates 121 along the connecting hole 112, and the two telescopic plates 121 can move toward the retracted position under the pulling force of the elastic member 122. When the telescopic structure 12 moves from the retracted position to the stretched position, the pushing member 13 can move along the connecting hole 112 toward the mounting groove 111, so that the pushing portion is located between the two telescopic plates 121 and pushes the two telescopic plates 121 to overcome the elastic force of the elastic member 122 and move, so that the two telescopic plates 121 can respectively extend from the two openings of the mounting groove 111 to form a stopper 1211.

[0053] In some examples of the present invention, Figure 4 and Figure 8 as well as Fig. 9 As shown, the pushing member 13 may include: a threaded section 131 and a tapered section 132. The threaded section 131 is threadedly connected to the connecting hole 112. The tapered section 132 is arranged at one end of the threaded section 131 facing the telescopic structure 12. In the axial direction of the pin body 11, the diameter of the tapered section 132 gradually decreases toward the telescopic structure 12, and the tapered section 132 is formed as a pushing portion.

[0054] In this embodiment, the pushing member 13 is provided with a threaded section 131 and a tapered section 132. The pushing member 13 is threadedly connected to the connecting hole 112 through the threaded section 131, so that the pushing member 13 can stably and reliably move along the axial direction of the connecting hole 112 and can be reliably fixed in the connecting hole 112. The tip of the tapered section 132 is arranged toward the telescopic structure 12, so that in the process of the pushing member 13 moving toward the telescopic structure 12, the pushing part can stably and reliably move between the two telescopic plates 121 and push the two telescopic plates 121 to both sides along the radial direction of the pin body 11, so that the pushing member 13 and the telescopic structure 12 can be stably and well matched.

[0055] In one example of the present invention, Figure 4 and Fig. 9 As shown, the diameter of the threaded segment 131 can be larger than the maximum diameter of the conical segment 132 , and an abutment surface 1312 is formed at one end of the threaded segment 131 facing the telescopic structure 12 . In the stretched position, one end of the threaded segment 131 is abutted and fixed to the telescopic plate 121 via the abutment surface 1312 .

[0056] In this embodiment, the diameter of the threaded section 131 is set to be larger than the maximum diameter of the tapered section 132, so that an abutment surface 1312 can be formed on the end surface where the threaded section 131 and the tapered section 132 are connected. In the stretched position, the abutment surface 1312 can be abutted and fixed with the side surface of the two telescopic plates 121 facing the threaded section 131, so that the abutment surface 1312 of the push member 13 can cooperate with the wall of the mounting groove 111 to clamp and fix the two telescopic plates 121, so that the two telescopic plates 121 can be more stably and reliably in the stretched position, thereby making the installation and fixation of the positioning pin assembly 10 in the battery pack 1000 more stable and reliable, and further enabling the positioning pin assembly 10 to play a good role in positioning and installing the battery pack 1000.

[0057] In one example of the present invention, Figure 4 and Figure 8 As shown, the threaded section 131 may be provided with a mounting groove 1311 , and the opening of the mounting groove 1311 is arranged away from the tapered section 132 .

[0058] In this embodiment, an assembly groove 1311 is provided in the threaded section 131, which can facilitate the assembler to rotate the push member 13 using an assembly tool, so that the push member 13 can push the two telescopic plates 121 as needed, with a simple structure and easy operation.

[0059] In one embodiment of the present invention, reference Figure 7 and Figure 8 As shown, the telescopic structure 12 can be symmetrical about the axis of the pin body 11.

[0060] In this embodiment, the telescopic structure 12 is symmetrical about the axis of the pin body 11, so that the force applied by the pushing member 13 on the two telescopic plates 121 is relatively uniform, so that the two telescopic plates 121 can be stably moved into place when moving to the stretched position, and the elastic member 122 can exert a relatively uniform pulling force on the two telescopic plates 121, so that the two telescopic plates 121 can be stably moved into place when moving to the contracted position, and the telescopic structure 12 can cooperate with the pushing member 13 to operate stably and reliably.

[0061] Reference below Figure 1-Figure 9 The positioning pin assembly 100 according to the second embodiment of the utility model is described.

[0062] like Figure 1-Figure 9 As shown, the positioning pin assembly 100 according to an embodiment of the utility model includes a positioning pin assembly 10 and a fastener 20 according to an embodiment of the first aspect of the utility model, the fastener 20 has a mating portion, the fastener 20 is arranged at one end of the pin body 11 and is threadedly connected to the connecting hole 112, and the mating portion is configured to cooperate with the stop portion 1211 to clamp and fix the pin body 11 on the side beam 210 of the battery pack 1000.

[0063] In this embodiment, a fastener 20 is provided to cooperate with the positioning pin assembly 10 to be fixed in the battery pack 1000, with a simple structure and convenient fixation. The fastener 20 is threadedly connected to the connecting hole 112 of the pin body 11, making it convenient and easy to disassemble the positioning pin assembly 10 and the battery pack 1000.

[0064] According to the positioning pin assembly 100 of the embodiment of the utility model, by setting the positioning pin assembly 10 of the first aspect embodiment mentioned above, a pin body 11 and a telescopic structure 12 are set in the positioning pin assembly 10, and the telescopic structure 12 can move between a stretched position and a retracted position. The telescopic structure 12 forms a stopper 1211 in the stretched position, and the telescopic structure 12 is completely in the installation groove 111 of the pin body 11 in the retracted position, so that the positioning pin assembly 10 can be conveniently and easily removed from the battery pack 1000 after the battery pack 1000 is assembled with the whole vehicle, thereby reducing the weight of the whole vehicle, and the positioning pin assembly 10 can be reused, so that the production cost of the battery pack 1000 is reduced.

[0065] Reference below Figure 1-Figure 9 A battery pack 1000 according to an embodiment of the third aspect of the utility model is described.

[0066] like Figure 1-Figure 9 As shown, the battery pack 1000 according to the embodiment of the utility model includes: the positioning pin assembly 100 and the box body according to the embodiment of the second aspect of the utility model, the box body includes the side beam 210, the side beam 210 is provided with a through hole 212 passing through the side beam 210 along the first direction, the pin body 11 is penetrated in the through hole 212, and in the stretched position, the stop portion 1211 abuts against the peripheral edge of one side of the through hole 212, and the matching portion abuts against the peripheral edge of the other side of the through hole 212.

[0067] In this embodiment, a through hole 212 is provided on the side beam 210, which can facilitate the arrangement of the positioning pin assembly 10 in the battery pack 1000. When the positioning pin assembly 10 and the battery pack 1000 are installed and fixed, the telescopic structure 12 in the positioning pin assembly 10 can be pre-set in the stretched position, and the pin body 11 extends into the through hole 212 from one side of the side beam 210. The stopper 1211 abuts against the surface of the side beam 210 to stop the positioning pin assembly 10, so that the positioning pin assembly 10 is initially positioned and fixed in the first direction. The fastener 20 is threadedly connected to the connecting hole 112 of the pin body 11 from the other side of the through hole 212, and the fastener 20 is fastened to the surface of the other side of the side beam 210, so that the positioning pin assembly 10 is stably fixed on the side beam 210 of the battery pack 1000.

[0068] After the battery pack 1000 is assembled in the vehicle, the fastener 20 is removed from the side beam 210 and the connecting hole 112, and the push member 13 can be rotated in the connecting hole 112 and moved to one side of the telescopic structure 12 by an assembly tool. The two telescopic plates 121 retract into the mounting groove 111 under the action of the elastic member 122, and the pin body 11 can be freely removed from the through hole 212.

[0069] According to the battery pack 1000 of the embodiment of the utility model, by setting the positioning pin assembly 100 of the above-mentioned second aspect embodiment, a pin body 11 and a telescopic structure 12 are set in the positioning pin assembly 10, and the telescopic structure 12 can move between a stretched position and a retracted position. The telescopic structure 12 forms a stopper 1211 in the stretched position, and the telescopic structure 12 is completely in the installation groove 111 of the pin body 11 in the retracted position, so that the positioning pin assembly 10 can be conveniently and easily removed from the battery pack 1000 after the battery pack 1000 is assembled with the whole vehicle, thereby reducing the weight of the whole vehicle, and the positioning pin assembly 10 can be reused, so that the production cost of the battery pack 1000 is reduced.

[0070] In some embodiments of the present invention, Figure 1 As shown, a limiting groove 211 may be provided on the side beam 210 , and the limiting groove 211 is communicated with the through hole 212 . In the stretched position, the stopper 1211 is limited and fixed in the limiting groove 211 .

[0071] In this embodiment, a limiting groove 211 is provided on the side beam 210, which can limit and fix the stop portion 1211, so that when the push member 13 rotates, the stop portion 1211 can cooperate with the limiting groove 211 to limit the rotation of the pin body 11, so that the push member 13 can rotate conveniently and stably in the connecting hole 112.

[0072] The following will refer to Figure 1-Figure 9 A battery pack 1000 according to a specific embodiment of the present invention is described.

[0073] like Figure 1-Figure 9 As shown, the battery pack 1000 includes a box body and a positioning pin assembly 100, the box body includes a side beam 210, the side beam 210 is provided with a through hole 212 along a first direction, and the side beam 210 is provided with a limiting groove 211 on a side surface in the first direction, and the limiting groove 211 is arranged at one end edge of the through hole 212, and the positioning pin assembly 100 includes a positioning pin assembly 10 and a fastener 20.

[0074] The positioning pin assembly 10 includes a pin body 11, a telescopic structure 12 and a pusher 13. The pin body 11 extends into the through hole 212 along the first direction and extends out of the through hole 212 toward one end of the limiting groove 211 to perform positioning operations during the assembly of the battery pack 1000 in the vehicle. The pin body 11 is provided with a mounting groove 111 and a connecting hole 112. The mounting groove 111 extends along the radial direction of the pin body 11 and forms two openings in the radial direction of the pin body 11. The connecting hole 112 extends along the first direction and is connected to the mounting groove 111. The axis of the connecting hole 112 is colinear with the axis of the pin body 11.

[0075] The telescopic structure 12 includes two telescopic plates 121 and an elastic member 122. The elastic member 122 is a spring and two of them are provided. The elastic member 122 extends along the extension direction of the mounting groove 111 and is connected to the two telescopic plates 121 at both ends. The two elastic members 122 are arranged at intervals. The telescopic structure 12 is symmetrical about the axis of the pin body 11. The telescopic plate 121 is an aluminum plate. The elastic member 122 can be welded or clamped to the telescopic plate 121. The two telescopic plates 121 have the same structure, which can be easily processed and manufactured, and reduce the cost of mold design.

[0076] The pushing member 13 is arranged in the connecting hole 112 and includes a threaded section 131 and a tapered section 132. The tapered section 132 is arranged toward the telescopic structure 12, and the tip of the tapered section 132 is arranged toward the gap between the two telescopic plates 121. The threaded section 131 is threadedly connected to the connecting hole 112, and the threaded section 131 is provided with an assembly groove 1311, and the opening of the assembly groove 1311 is away from the tapered section 132.

[0077] When the positioning pin assembly 100 is assembled and fixed to the battery pack 1000, the fastener 20 is threadedly connected to the connecting hole 112 of the pin body 11 in the through hole 212 from the other side of the side beam 210, the telescopic structure 12 is in the stretched position, the stop portion 1211 is arranged in the limiting groove 211 and abuts against the side beam 210, and the stop portion 1211 cooperates with the fastener 20 to clamp the pin body 11 on the side beam 210.

[0078] When the locating pin assembly 10 is removed from the battery pack 1000, the fastener 20 is removed from the other side of the side beam 210, and the pushing member 13 rotates along the connecting hole 112 toward the other side of the side beam 210, so that the pushing part is withdrawn from between the two telescopic plates 121. The two telescopic plates 121 move to the retracted position under the pulling force of the elastic member 122, and the stopper 1211 retreats into the installation groove 111, thereby disengaging from the limiting groove 211. The obstruction of the pin body 11 in the first direction disappears, and the locating pin assembly 10 can be taken out from the through hole 212 on the other side of the side beam 210.

[0079] According to the battery pack 1000 of the embodiment of the utility model, a pin body 11 and a telescopic structure 12 are provided in the positioning pin assembly 10. The telescopic structure 12 can move between a stretched position and a retracted position. The telescopic structure 12 forms a stopper 1211 in the stretched position. The telescopic structure 12 is completely located in the mounting groove 111 of the pin body 11 in the retracted position. The positioning pin assembly 10 can be conveniently and easily removed from the battery pack 1000 after the battery pack 1000 is assembled with the entire vehicle, thereby reducing the weight of the entire vehicle. The positioning pin assembly 10 can be reused, thereby reducing the production cost of the battery pack 1000.

[0080] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0081] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0082] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0084] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A positioning pin assembly, characterized in that: The positioning pin assembly is used to position the battery pack when it is installed in the vehicle, and the positioning pin assembly includes: A pin body, wherein the pin body is formed with a connecting hole and a mounting groove, wherein the connecting hole extends along the axial direction of the pin body and forms an opening at one end of the pin body, wherein the connecting hole is suitable for being connected to a fastener, and the mounting groove extends along the radial direction of the pin body and penetrates the pin body; A telescopic structure is movable between a stretched position and a retracted position. In the stretched position, the telescopic structure extends from the two opening parts of the pin body of the mounting groove to form a stopper. In the retracted position, the telescopic structure is completely in the mounting groove.

2. The positioning pin assembly according to claim 1, characterized in that: The telescopic structure comprises: A telescopic plate, wherein two telescopic plates are provided, and the two telescopic plates are arranged at intervals along the extension direction of the mounting groove. In the stretched position, the two telescopic plates extend from two openings of the mounting groove respectively, and the portion of the telescopic plate extending from the opening of the mounting groove forms the stopper; An elastic member extending along the extension direction of the mounting slot, the elastic member being connected between the two telescopic plates, and the elastic member being suitable for elastic deformation along the extension direction of the mounting slot, wherein in the stretched position, the elastic member is in a tensioned state.

3. The positioning pin assembly according to claim 2, characterized in that: The mounting groove is communicated with the connecting hole, and the positioning pin assembly also includes a pushing member, which is movably disposed in the connecting hole. The pushing member has a pushing portion. In the stretched position, the pushing portion is disposed between the two telescopic plates, and the pushing portion abuts against the end edges of the two telescopic plates, respectively, to tension the elastic member. In the contracted position, the pushing member is located on one side of the telescopic structure in the axial direction of the pin body.

4. The positioning pin assembly according to claim 3, characterized in that: The pushing member includes: a threaded section and a tapered section, the threaded section is threadedly connected to the connecting hole, the tapered section is arranged at one end of the threaded section facing the telescopic structure, and in the axial direction of the pin body, the diameter of the tapered section gradually decreases toward the telescopic structure, and the tapered section forms the pushing portion.

5. The positioning pin assembly according to claim 4, characterized in that: The diameter of the threaded section is greater than the maximum diameter of the conical section. An abutment surface is formed at one end of the threaded section facing the telescopic structure. In the stretched position, the one end of the threaded section is abutted and fixed to the telescopic plate via the abutment surface.

6. The positioning pin assembly according to claim 4, characterized in that: The threaded section is provided with a mounting groove, and an opening of the mounting groove is arranged away from the tapered section.

7. The positioning pin assembly according to any one of claims 2 to 6, characterized in that: The telescopic structure is symmetrical about the axis of the pin body.

8. A positioning pin assembly, characterized in that: include: The positioning pin assembly according to any one of claims 1 to 7; A fastener having a mating portion, the fastener is disposed at one end of the pin body and is threadedly connected to the connecting hole, the mating portion being configured to cooperate with the stop portion to clamp and fix the pin body on the side beam of the battery pack.

9. A battery pack, characterized in that: include: The positioning pin assembly according to claim 8; The box body comprises a side beam, the side beam is provided with a through hole penetrating the side beam along a first direction, the pin body is penetrated in the through hole, and in the stretched position, the stop portion abuts against a peripheral edge of one side of the through hole, and the matching portion abuts against a peripheral edge of the other side of the through hole.

10. The battery pack according to claim 9, characterized in that: The side beam is provided with a limiting groove, the limiting groove is communicated with the through hole, and in the stretching position, the stopper is limited and fixed in the limiting groove.

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