Battery pack lap joint structure

Abstract

The utility model discloses a battery pack lap joint structure. The battery pack lap joint structure comprises a mounting unit, a reciprocating unit, a connecting unit, a guide unit and a lap joint unit, wherein a cable is arranged on the mounting unit; the reciprocating unit is fixedly mounted at the upper end of the mounting unit; the connecting unit is arranged on an output shaft of the reciprocating unit, and a mounting hole is formed in the connecting unit and used for moving in the vertical and / or horizontal direction under the action of the reciprocating unit; the first part of the guide unit is sleeved in the mounting hole, and the second part extends out of the mounting hole and is positioned outside the mounting hole; the lap joint unit is fixedly connected with the end part of the second part of the guide unit, the lap joint unit comprises a first connecting plate, an insulating plate and a conductive plate which are sequentially arranged from the first end to the second end, and the conductive plate is connected with the output end of the cable. According to the utility model, the lapping unit can be lapped on the battery pack through the reciprocating unit, and the problem that clamps on the testing head need to be manually clamped on the peripheral surface of the battery pack in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack tooling, and particularly relates to a battery pack lapping device. Background Art

[0002] In the production process of automobile battery packs, it is necessary to perform a withstand voltage insulation test on the battery pack bottom bracket. During the test, the test heads of the test equipment need to be lapped on the surfaces around the battery pack respectively to connect the test heads with the battery pack, and then the test can be carried out.

[0003] The prior art is that manual workers manually clamp the clips on the test heads on the surfaces around the battery pack, and then perform the insulation withstand voltage test. This undoubtedly is not conducive to improving the test efficiency of the battery pack and increases the labor cost.

[0004] Currently, in view of the problem that it is necessary for manual workers to manually clamp the clips on the test heads on the surfaces around the battery pack in the prior art, no effective solution has been proposed yet. Summary of the Utility Model

[0005] In view of this, an embodiment of the utility model provides a battery pack lapping device to at least solve the problem that it is necessary for manual workers to manually clamp the clips on the test heads on the surfaces around the battery pack in the prior art.

[0006] The embodiment of the utility model provides the following technical solutions:

[0007] The embodiment of the utility model provides a battery pack lapping structure, including:

[0008] An installation unit, on which a cable is arranged;

[0009] A reciprocating unit, which is fixedly installed at the upper end of the installation unit;

[0010] A connection unit, which is arranged on the output shaft of the reciprocating unit, and an installation hole is formed in the connection unit for moving in the vertical and / or horizontal directions under the action of the reciprocating unit;

[0011] A guiding unit, the first part of which is sleeved in the installation hole, and the second part extends out of the installation hole and is located outside the installation hole. The guiding unit is used to move along with the connection unit;

[0012] A lapping unit, which is fixedly connected to the end of the second part of the guiding unit, and the lapping unit includes a first connecting plate, an insulating plate and a conductive plate arranged in sequence from the first end to the second end. The conductive plate is connected to the output end of the cable, and the lapping unit can move along with the connection unit through the guiding unit to lap with the battery pack or the battery pack bottom bracket;

[0013] Wherein, after the overlapping unit overlaps with the battery pack or the bottom bracket of the battery pack, the connecting unit can relatively slide with at least part of the guiding unit and approach the overlapping unit.

[0014] Furthermore, the battery pack overlapping structure further includes:

[0015] A spring unit, which is sleeved on the second part of the guiding unit and is located between the connecting unit and the overlapping unit.

[0016] Furthermore, the reciprocating unit includes:

[0017] A first reciprocating member, which is arranged on the mounting unit. An installation plate is connected to the first output shaft of the first reciprocating member, and the installation plate moves in the horizontal direction under the action of the first reciprocating member;

[0018] A second reciprocating member, which is installed on the installation plate. The second output shaft of the second reciprocating member is connected to the connecting unit. The insulating member is used to isolate the second reciprocating member and the installation plate, and the second reciprocating member is used to drive the connecting unit to move in the vertical direction.

[0019] Furthermore, the second reciprocating member is installed on the installation plate through an insulating member, and the insulating member is used to isolate the second reciprocating member and the installation plate.

[0020] Furthermore, the guiding unit includes:

[0021] A guiding shaft, which is sleeved in the installation hole. A stop portion is provided at the end of the first part of the guiding shaft. The end of the second part of the guiding shaft is fixedly connected to the overlapping unit. The second part of the guiding shaft is sleeved in the spring unit, and the guiding shaft can move vertically in the installation hole.

[0022] Furthermore, the guiding unit further includes:

[0023] A linear bearing, which is sleeved in the installation hole and is sleeved outside the first part of the guiding shaft.

[0024] Furthermore, the connecting unit includes:

[0025] At least one second connecting plate, which is connected to the second output shaft of the second reciprocating member, and the installation hole is provided on the second connecting plate.

[0026] Furthermore, both the installation hole and the guiding unit are at least two, and each guiding unit is installed in the corresponding installation hole.

[0027] Further, the installation unit includes:

[0028] An installation part, on which a cable is arranged for installing the reciprocating unit;

[0029] A support part, which is arranged on the side of the installation part for supporting the installation part to keep stable.

[0030] Further, the lapping unit further includes:

[0031] A bolt, which sequentially passes through the conductive plate, the insulating plate, and the first connecting plate, and there is a preset distance between the bolt and the inner wall of the perforation on the first connecting plate;

[0032] An insulating gasket, which is sleeved on the bolt;

[0033] A nut, which is connected to the bolt for cooperating with the bolt to fasten the conductive plate, the insulating plate, and the first connecting plate.

[0034] Compared with the prior art, the at least one technical solution adopted in the embodiment of the present utility model can achieve at least the following beneficial effects:

[0035] A battery pack lapping structure of the present utility model connects the output end of the cable to the lapping unit, and uses the reciprocating unit to drive the connecting unit to move in the vertical or horizontal direction, so that the connecting unit can drive the lapping unit to move in the vertical or horizontal direction, enabling the lapping unit to be lapped on the battery pack or the battery pack bottom bracket, thus solving the problem in the prior art that the clips on the test head need to be manually clamped on the peripheral surface of the battery pack;

[0036] Further, after the lapping unit is lapped on the battery pack, if the reciprocating unit drives the lapping unit to continue moving through the connecting unit and the guiding unit, the connecting unit can relatively slide with at least part of the guiding unit, and no longer apply pressure to the lapping unit, so as to avoid the lapping unit overly pressing the battery pack and causing marks on the battery pack. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 It is a schematic structural diagram of a battery pack lapping structure according to an embodiment of the present utility model;

[0039] Figure 2 Explosion view of a partial battery pack lap joint structure according to an embodiment of the present utility model;

[0040] Figure 3 Flow chart (I) of a battery pack lap joint structure according to an embodiment of the present utility model being prepared to be lapped onto a battery pack;

[0041] Figure 4 Flow chart (II) of a battery pack lap joint structure according to an embodiment of the present utility model being prepared to be lapped onto a battery pack;

[0042] Figure 5 Schematic diagram of a battery pack lap joint structure according to an embodiment of the present utility model being lapped onto a battery pack.

[0043] The reference numerals of the present utility model are as follows:

[0044] 10. Installation unit; 11. Installation part; 12. Support part;

[0045] 20. Cable;

[0046] 30. Reciprocating unit; 31. First reciprocating member; 32. Installation plate; 33. Second reciprocating member; 34. Insulating member;

[0047] 40. Connection unit; 41. Installation hole; 42. Second connection plate;

[0048] 50. Guiding unit; 51. Guide shaft; 52. Linear bearing;

[0049] 60. Lapping unit; 61. First connection plate; 62. Insulating plate; 63. Conductive plate; 64. Bolt; 65. Insulating gasket; 66. Nut;

[0050] 70. Spring unit;

[0051] 80. Battery pack. Detailed implementation manners

[0052] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0053] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all embodiments. The present application can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0054] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is illustrative only. Based on the present application, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects described herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0055] It should also be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present application schematically. The drawings only show the components related to the present application, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0056] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the examples can be practiced without these specific details.

[0057] In the prior art, manually connecting the test head to the battery pack undoubtedly increases the labor cost.

[0058] Based on this, the embodiments of this specification propose a processing solution: as Figures 1-2As shown in the figure, a battery pack lapping structure of the present utility model connects the output end of the cable 20 to the conductive plate 63 of the lapping unit 60. The reciprocating unit 30 drives the lapping unit 60 to move in the vertical or horizontal direction through the connecting unit 40 and the guiding unit 50, so that the conductive plate 63 of the lapping unit 60 is automatically lapped onto the battery pack 80, thus eliminating the need for manual clamping of the test head to the outer surface of the battery pack and solving the problem in the prior art that the clip on the test head needs to be manually clamped around the surface of the battery pack.

[0059] The following describes the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

[0060] As Figures 1-5 shown in the figure, a battery pack 80 lapping structure of the present utility model includes an installation unit 10, a reciprocating unit 30, a connecting unit 40, a guiding unit 50, and a lapping unit 60. Among them, a cable 20 is arranged on the installation unit 10 to provide installation and support functions; the reciprocating unit 30 is fixedly installed at the upper end of the installation unit 10; the connecting unit 40 is arranged on the output shaft of the reciprocating unit 30, and an installation hole 41 is provided on the connecting unit 40. The connecting unit 40 is used to move in the vertical and / or horizontal direction under the action of the reciprocating unit 30; the first part of the guiding unit 50 is sleeved in the installation hole 41, and the second part extends out of the installation hole 41 and is located outside the installation hole 41. The guiding unit 50 is used to move along with the connecting unit 40; the lapping unit 60 is fixedly connected to the end of the second part of the guiding unit 50, and the lapping unit 60 includes a first connecting plate 61, an insulating plate 62, and a conductive plate 63 arranged in sequence from the first end to the second end. The conductive plate 63 is connected to the output end of the cable 20, and the lapping unit 60 can move in the vertical and / or horizontal direction along with the lapping unit 60 through the guiding unit 50 to lap onto the battery pack 80 or the battery pack bottom bracket.

[0061] Among them, after the lapping unit 60 is lapped onto the battery pack 80 or the battery pack bottom bracket, the connecting unit 40 can relatively slide with at least part of the guiding unit and approach the lapping unit 60, so as to avoid damaging the battery pack 80 due to the lapping unit 60 continuing to press the battery pack 80 under the action of the connecting unit 40 after the lapping unit 60 is lapped onto the battery pack 80 or the battery pack bottom bracket.

[0062] Among them, the output end of the cable 20 can be arranged in the through hole on the installation unit 10 to facilitate connection with the conductive plate 63 of the lapping unit 60.

[0063] Among them, the installation unit 10 is used to provide installation and support functions and is used to install the battery pack 80 lapping structure to the required position.

[0064] Specifically, the installation unit 10 includes an installation portion 11 and a support portion 12. Among them, a cable 20 is arranged on the installation portion 11 for installing the reciprocating unit 30; the support portion 12 is arranged on the side of the installation portion 11 for supporting the installation portion 11 to maintain stability.

[0065] Among them, the installation portion 11 can be in a plate-shaped structure for installing the reciprocating unit 30.

[0066] Among them, the support portion 12 can be a triangular structure or a triangular prism structure for supporting the installation portion 11 to keep the installation portion 11 stable.

[0067] Among them, the reciprocating unit 30 is used to drive the connecting unit 40 to move in the vertical and / or horizontal directions through its output shaft, so that the lapping unit 60 can lap onto battery packs 80 or battery pack bases of different sizes. For example, it drives the connecting unit 40 to move up and down in the vertical direction, or drives the connecting unit 40 to move left and right or back and forth in the horizontal direction.

[0068] Among them, the reciprocating unit 30 can include devices such as air cylinders and electric telescopic rods.

[0069] Among them, when the connecting unit 40 moves in the vertical and / or horizontal directions under the action of the reciprocating unit 30, it drives the guiding unit 50 to move in the vertical and / or horizontal directions.

[0070] Among them, the connecting unit 40 is used to connect and drive the guiding unit 50 to move.

[0071] Among them, the guiding unit 50 can move in the installation hole 41. After the lapping unit 60 laps onto the battery pack 80, if the reciprocating unit 30 continues to drive the connecting unit 40 to make the connecting unit continue to approach the battery pack 80, the connecting unit 40 can have relative sliding with at least part of the guiding unit 50 to avoid the guiding unit 50 continuing to press on the lapping unit 60 and causing the lapping unit 60 to overly press the battery pack 80.

[0072] Among them, the lapping unit 60 is used to lap onto the battery pack 80 or the battery pack base along with the guiding unit 50, and after being connected to the output end of the cable 20, it supplies current to the battery pack 80 or the battery pack base to perform insulation detection on the battery pack 80 or the battery pack base.

[0073] Among them, the first connecting plate 61 is used for connection, to connect with the guiding unit 50, and under the drive of the guiding unit 50, it drives the insulating plate 62 and the conductive plate 63 to move.

[0074] Among them, the conductive plate 63 is used to connect with the output end of the cable 20, for obtaining the current output by the cable 20 to test the battery pack 80 or the battery pack base.

[0075] Among them, the connection method between the conductive plate 63 and the cable 20 can be plug connection, welding, adhesive connection, etc.

[0076] Among them, the insulating plate 62 is used to isolate the first connecting plate 61 and the conductive plate 63, preventing the current on the conductive plate 63 from being transmitted to the first connecting plate 61, and then being transmitted to the guiding unit 50, the connecting unit 40, the reciprocating unit 30, and the mounting unit 10 through the first connecting plate 61.

[0077] Among them, the conductive plate 63 can be a metal plate or a graphene plate.

[0078] Among them, the insulating plate 62 can be a rubber plate.

[0079] Among them, the first connecting plate 61 can be made of an insulating material or a metal material.

[0080] Preferably, the first connecting plate 61 is made of an insulating material.

[0081] Among them, the connection methods between the first connecting plate 61, the insulating plate 62, and the conductive plate 63 include but are not limited to adhesive connection, tethering connection, bolt 64 connection, etc.

[0082] Furthermore, the battery pack 80 lapping structure further includes a spring unit 70. The spring unit 70 is sleeved on the second part of the guiding unit 50 and is located between the connecting unit 40 and the lapping unit 60, which is used to play a buffering role and provide a certain downward pressure for the lapping unit 60.

[0083] Among them, after the reciprocating unit 30 drives the lapping unit 60 to lap onto the battery pack 80 or the battery pack bottom bracket through the connecting unit 40 and the guiding unit 50, if the reciprocating unit 30 continues to drive the lapping unit 60 to move through the connecting unit 40 and the guiding unit 50, since the lapping unit 60 has already abutted against the battery pack 80 or the battery pack bottom bracket, at this time, the connecting unit 40 and the guiding unit 50 move relatively, and the spring is compressed, so that the spring squeezes the lapping unit 60, and the lapping unit 60 squeezes the battery pack 80. However, since the pressure given by the spring to the lapping unit 60 is limited, even if the lapping unit 60 squeezes the battery pack 80 at this time, the battery pack 80 will not be damaged.

[0084] In summary, through the spring unit 70, while effectively preventing the lapping unit 60 from overly squeezing the battery pack 80, a certain downward pressure can be given to the lapping unit 60, so that the lapping unit 60 is closely abutted against the battery pack 80 or the battery pack bottom bracket.

[0085] Further, the reciprocating unit 30 includes a first reciprocating member 31 and a second reciprocating member 33. Among them, the first reciprocating member 31 is arranged on the mounting unit 10, and a mounting plate 32 is connected to the first output shaft of the first reciprocating member 31. The mounting plate 32 moves in the horizontal direction under the action of the first reciprocating member 31; the second reciprocating member 33 is mounted on the mounting plate 32 through an insulating member 34, and the second output shaft of the second reciprocating member 33 is connected to the connecting unit 40. The insulating member 34 is used to isolate the second reciprocating member 33 and the mounting plate 32 to prevent current from being conducted to the mounting plate 32 when the second reciprocating member 33 is energized.

[0086] Among them, the first reciprocating member 31 and the second reciprocating member 33 can be cylinders or electric telescopic rods.

[0087] Among them, the first reciprocating member 31 is used to drive the second reciprocating member 33 to move in the horizontal direction through the mounting plate 32, such as driving the second reciprocating member 33 to move in the left-right or front-back direction.

[0088] Among them, the second reciprocating member 33 is used to drive the connecting unit 40 to move in the vertical direction.

[0089] Among them, the first reciprocating member 31 is a pushing cylinder, the second reciprocating member 33 is a pressing cylinder, and the air circuit control of the first reciprocating member 31 and the second reciprocating member 33 both relies on solenoid valves for control. The point control of the solenoid valves is controlled by a PLC program to push the second reciprocating member 33 together with the first reciprocating member 31 to the side of the battery pack 80, so that the overlapping unit 60 can be compatible with battery packs 80 of different sizes. Finally, the second reciprocating member 33 overlaps the overlapping unit 60 on the surface of the battery pack 80 to meet the condition of connecting the battery pack 80 for the insulation withstand voltage test.

[0090] In summary, the first reciprocating member 31 and the second reciprocating member 33 can drive the connecting unit 40 to move in the horizontal and / or vertical directions, so that the battery pack 80 overlapping structure can adapt to battery packs 80 or battery pack bottom trays of different sizes.

[0091] Further, the connecting unit 40 includes at least one second connecting plate 42. The second connecting plate 42 is connected to the second output shaft of the second reciprocating member 33, and a mounting hole 41 is provided on the second connecting plate 42.

[0092] Among them, the number and thickness of the second connecting plates 42 can be set according to the actual required thickness of the connecting unit 40.

[0093] Preferably, the second connecting plate 42 can be two.

[0094] Further, there are at least two mounting holes 41 on the second connecting plate 42, and there are also at least two guiding units 50. Each guiding unit 50 is installed in a corresponding mounting hole 41 to stably support the overlapping unit 60 with multiple guiding units 50 and prevent the overlapping unit 60 from tilting.

[0095] Further, the guiding unit 50 includes a guiding shaft 51. The guiding shaft 51 is sleeved in the mounting hole 41. A stop portion is provided at the end of the first part of the guiding shaft 51. The end of the second part of the guiding shaft 51 is fixedly connected to the overlapping unit 60. The second part of the guiding shaft 51 is sleeved in the spring unit 70, and the guiding shaft 51 can move vertically in the mounting hole 41.

[0096] Wherein, after the overlapping unit 60 abuts against the battery pack 80 or the battery pack bottom bracket, if the connecting unit 40 continues to move towards the battery pack 80 or the battery pack bottom bracket under the action of the reciprocating unit 30, at this time, the guiding shaft 51 and the overlapping unit 60 no longer move, and the connecting unit 40 moves along the guiding shaft 51 to prevent the overlapping unit 60 from pressing too hard on the battery pack 80 or the battery pack bottom bracket.

[0097] Wherein, the stop portion is used to prevent the guiding shaft 51 from detaching from the mounting hole 41.

[0098] Wherein, the end of the second part of the guiding shaft 51 can be threadedly connected to the overlapping unit 60.

[0099] Further, the guiding unit 50 further includes a linear bearing 52. The linear bearing 52 is sleeved in the mounting hole 41 and outside the first part of the guiding shaft 51. The linear bearing 52 is used to facilitate the relative sliding between the second connecting plate 42 of the connecting unit 40 and the guiding shaft 51.

[0100] Further, the overlapping unit 60 further includes a bolt 64, an insulating gasket 65 and a nut 66. Among them, the bolt 64 passes through the conductive plate 63, the insulating plate 62 and the first connecting plate 61 in sequence, and there is a preset distance between the bolt 64 and the inner wall of the perforation on the first connecting plate 61; the insulating gasket 65 is sleeved on the bolt 64; the nut 66 is connected to the bolt 64 and is used to cooperate with the bolt 64 to fasten the conductive plate 63, the insulating plate 62 and the first connecting plate 61.

[0101] Specifically, the first connecting plate 61 is threadedly connected to the second part of the guiding shaft 51 of the guiding unit 50.

[0102] Wherein, since the first connecting plate 61 is threadedly connected to the guiding shaft 51 of the guiding unit 50, the first connecting plate 61 should not carry current, so there is a preset distance between the bolt 64 and the inner wall of the perforation on the first connecting plate 61.

[0103] Specifically, perforations are provided on the conductive plate 63, the insulating plate 62, and the first connecting plate 61, so that the bolt 64 passes through the conductive plate 63, the insulating plate 62, and the first connecting plate 61 in sequence.

[0104] Wherein, after the bolt 64 passes through the first connecting plate 61, an insulating gasket 65 is sleeved on the bolt 64, and a nut 66 is used in cooperation with the bolt 64 to fasten the conductive plate 63, the insulating plate 62, and the first connecting plate 61 together.

[0105] In the present utility model, since the test head is connected to the conductive plate of the connection unit through a cable, and then the conductive plate is connected to the battery pack 80 for testing. Since there is voltage during the testing process, insulating plates and insulating gaskets are required for insulation. Among them, the insulating plate is the first layer of insulation, which is insulated by an insulating plate made of PUA80 insulating material. The fixing method is bolts and nuts, and an insulating gasket is used for insulation; the second layer of insulation is an insulating part made of POM insulating material for insulation.

[0106] In the present utility model, when performing an insulation withstand voltage test, the test head of the test equipment needs to be connected to the bottom tray of the battery pack to conduct electricity before testing. Therefore, the test head is connected to the conductive plate through a cable, and the conductive plate is made to abut against the surface of the battery pack 80 by means of a pushing cylinder (the first reciprocating member) and a pressing cylinder (the second reciprocating member), so as to achieve the connection between the test head and the bottom tray of the battery pack.

[0107] In this specification, the same or similar parts among the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the product embodiments described later, since they correspond to the methods, the descriptions are relatively simple, and the relevant parts can be referred to the partial descriptions of the system embodiments.

[0108] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A battery pack overlapping structure, characterized in that, Comprising: An installation unit, on which a cable is provided; A reciprocating unit, which is fixedly installed at the upper end of the installation unit; A connecting unit, which is arranged on the output shaft of the reciprocating unit, and an installation hole is formed in the connecting unit for moving in the vertical and / or horizontal directions under the action of the reciprocating unit; A guiding unit, the first part of which is sleeved in the installation hole, and the second part extends out of the installation hole and is located outside the installation hole, and the guiding unit is used to move along with the connecting unit; A lapping unit, which is fixedly connected to the end of the second part of the guiding unit, and the lapping unit includes a first connecting plate, an insulating plate and a conductive plate arranged in sequence from the first end to the second end, the conductive plate is connected to the output end of the cable, and the lapping unit can move to lap with the battery pack or the battery pack bottom bracket through the guiding unit along with the connecting unit; Wherein, after the lapping unit laps with the battery pack or the battery pack bottom bracket, the connecting unit can relatively slide with at least part of the guiding unit and approach the lapping unit.

2. The battery pack lap joint structure according to claim 1, characterized in that, Further comprising: A spring unit, which is sleeved on the second part of the guiding unit and is located between the connecting unit and the lapping unit.

3. The battery pack lap joint structure according to claim 2, characterized in that, The reciprocating unit includes: A first reciprocating member, which is arranged on the installation unit, and an installation plate is connected to the first output shaft of the first reciprocating member, and the installation plate moves in the horizontal direction under the action of the first reciprocating member; A second reciprocating member, which is installed on the installation plate, and the second output shaft of the second reciprocating member is connected to the connecting unit, and the second reciprocating member is used to drive the connecting unit to move in the vertical direction.

4. The battery pack lap joint structure according to claim 3, characterized in that, The second reciprocating member is installed on the installation plate through an insulating member, and the insulating member is used to isolate the second reciprocating member and the installation plate.

5. The battery pack lap joint structure according to claim 3, characterized in that The guiding unit includes: A guiding shaft, which is sleeved in the installation hole, a stop portion is arranged at the end of the first part of the guiding shaft, the end of the second part of the guiding shaft is fixedly connected to the lapping unit, the second part of the guiding shaft is sleeved in the spring unit, and the guiding shaft can move in the installation hole.

6. The battery pack latching structure according to claim 5, wherein, The guiding unit further includes: A linear bearing, which is sleeved in the installation hole and is sleeved outside the first part of the guiding shaft.

7. The battery pack lap joint structure according to claim 3, wherein The connecting unit includes: At least one second connecting plate, which is connected to the second output shaft of the second reciprocating member, and the installation hole is formed in the second connecting plate.

8. The battery pack lap joint structure according to claim 7, characterized in that, Both the installation hole and the guiding unit are at least two, and each guiding unit is installed in the corresponding installation hole.

9. The battery pack lap joint structure according to claim 2, characterized in that The installation unit includes: An installation part, on which a cable is provided for installing the reciprocating unit; A support part, which is arranged on the side of the installation part for supporting the installation part to keep stable.

10. The battery pack latching structure according to any one of claims 1 to 9, characterized in that, The lapping unit further includes: A bolt that sequentially passes through the conductive plate, the insulating plate, and the first connecting plate, and there is a preset distance between the bolt and the inner wall of the perforation on the first connecting plate; An insulating gasket that is sleeved on the bolt; A nut that is connected to the bolt and is used to cooperate with the bolt to fasten the conductive plate, the insulating plate, and the first connecting plate.

Images