Battery pack and vehicle

Abstract

The utility model relates to a battery pack and a vehicle. The battery pack comprises a box body, a battery monomer assembly and a control box, the box bodies are provided with containing cavities, and the multiple box bodies are sequentially connected in the height direction of the box bodies. The number of the battery monomer assemblies is multiple, and the battery monomer assemblies are arranged in the containing cavities respectively. The control box is arranged on one side of the box body along the length direction of the box body, is detachably connected to the surface of one side of each box body along the length direction, and is electrically connected with each battery monomer assembly. According to the embodiment of the invention, the maintenance convenience is improved, and the later maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a battery pack and a vehicle. BACKGROUND

[0002] With the rapid development of new energy vehicles, people have higher requirements for power batteries on vehicles. The existing structure of the battery pack is not convenient for maintenance, and the maintenance cost is high, which cannot meet the requirements. CONTENT OF THE UTILITY MODEL

[0003] The utility model embodiment provides a battery pack and a vehicle, which is convenient for improving the maintenance convenience and reducing the maintenance cost in the later period.

[0004] On the one hand, according to the battery pack provided by the embodiment of the present application, the battery pack comprises: a box body having a containing cavity, the number of the box body is multiple, and the multiple box bodies are connected in sequence along the height direction of the box body; a battery monomer assembly, the number of the battery monomer assembly is multiple, and each containing cavity is provided with the battery monomer assembly; and a control box arranged on one side of the box body along the length direction of the box body, the control box is detachably connected to one side surface of each box body along the length direction, and is electrically connected with each battery monomer assembly.

[0005] According to one aspect of the embodiment of the present application, one side surface of each box body facing the control box is provided with a first connecting hole, and one side surface of the control box facing the box body is provided with multiple second connecting holes distributed along the height direction; the control box abuts against each box body, the first connecting hole and the second connecting hole are arranged one by one along the length direction, the positive electrode connecting piece of each battery monomer assembly extends into the control box through the first connecting hole and the second connecting hole, and the negative electrode connecting piece of each battery monomer assembly extends into the control box through the first connecting hole and the second connecting hole.

[0006] According to one aspect of the embodiment of the present application, the box body comprises a frame and a bottom plate, the frame is circumferentially arranged around the containing cavity, and the bottom plate is connected to the frame and circumferentially arranged on one side of the containing cavity along the height direction, and one bottom plate is arranged between two adjacent battery monomer assemblies along the height direction.

[0007] According to one aspect of the embodiment of the present application, each frame is connected in sequence along the height direction, one side surface of the frame away from the containing cavity is recessed inward to form multiple mounting grooves distributed at intervals, and two adjacent frames are detachably connected through fasteners, and part of the fasteners are arranged in the mounting grooves.

[0008] According to an aspect of the embodiment of the present application, the bottom plate has a medium flow channel, and an inlet and an outlet respectively communicating with the medium flow channel, the inlet and the outlet are arranged on the side of the bottom plate facing the control box along the length direction, and the control box is located between the inlet and the outlet along the width direction of the box.

[0009] According to an aspect of the embodiment of the present application, the battery pack further comprises a cover plate connected to the frame of one of the outermost boxes and surrounding the side of the accommodating cavity away from the bottom plate along the height direction.

[0010] According to an aspect of the embodiment of the present application, the box further comprises a connecting portion, the frame comprises a pair of first walls arranged and spaced apart and a pair of second walls arranged and spaced apart, the first walls and the second walls are alternately arranged and connected to each other, one of the first walls is detachably connected to the control box, the pair of second walls respectively extend along the length direction and are respectively provided with the connecting portion, and the box is connected to an external member through the connecting portion.

[0011] According to an aspect of the embodiment of the present application, the thickness of the first wall is smaller than the thickness of the second wall.

[0012] According to an aspect of the embodiment of the present application, the battery pack further comprises a high-voltage connector detachably connected to any side of the control box along the height direction and electrically connected to the control box, and / or the battery pack further comprises a maintenance switch arranged on any side of the control box along the width direction of the box, and / or the battery pack further comprises a communication interface arranged on at least one side of the control box along the width direction of the box.

[0013] On the other hand, according to the embodiment of the present application, a vehicle is provided, comprising the battery pack as described above.

[0014] The battery pack and the vehicle provided by the embodiment of the present application, the battery pack comprises a box, a battery cell assembly and a control box, the control box is arranged outside the accommodating cavity of the box and is detachably connected to one side of each box along the length direction of the box, when the control box needs to be maintained or replaced, the box does not need to be disassembled, only the control box needs to be disassembled, the operation is simple and convenient, the convenience of maintenance is improved, and the maintenance cost in the later period is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] The features, advantages and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0016] Figure 1 The structure schematic diagram of the battery pack of one embodiment of the present application;

[0017] Figure 2 An exploded view of a battery pack according to an embodiment of the present application;

[0018] Figure 3 A structural view of a box in a battery pack according to an embodiment of the present application;

[0019] Figure 4 A partial sectional view of a battery pack according to an embodiment of the present application;

[0020] Figure 5 A structural view of a battery pack according to another embodiment of the present application.

[0021] Wherein:

[0022] 10, box; 101, accommodating cavity; 102, first connecting hole; 11, frame; 1101, mounting groove; 111, first wall; 112, second wall; 12, bottom plate; 121, inlet; 122, outlet; 13, cover plate;

[0023] 20, battery cell assembly; 30, control box;

[0024] 40, fastener; 50, connecting portion; 60, high-voltage connector; 70, maintenance switch; 80, communication interface;

[0025] X, height direction; Y, length direction; Z, width direction. DETAILED DESCRIPTION

[0026] Features and exemplary embodiments of various aspects of the present application will be described below in detail. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely illustrative of the present application and is not intended to limit the present application, as is apparent to one of ordinary skill in the art. In the following description of the embodiments, well-known structures and techniques have not been shown or described in detail in order not to obscure the application. Furthermore, like reference numerals have been used to denote like elements throughout the description of the drawings and the description below.

[0027] The orientation words appearing in the following description are the directions shown in the drawings, and are not limited to the battery pack and the vehicle of the present application. In the description of the present application, it should be further explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] At present, the traditional assembly method of the battery pack is to place the control box inside the battery pack box body. When the control box needs to be maintained, the box body needs to be disassembled, which is very inconvenient and will increase the maintenance cost. Alternatively, some assembly methods are to place the control box above the battery pack box body. When the battery pack is applied to a vehicle or other electric device, it is also not convenient to maintain due to space limitations.

[0029] Based on the above defects, the embodiments of the present application provide a battery pack. By setting the control box outside the accommodating cavity of the box body and setting it on one side of the box body along the length direction of the box body, the maintenance of the control box is facilitated, thereby reducing the maintenance cost.

[0030] In order to better understand the present application, the following will be described in combination with Figures 1 to 5 The battery pack and the vehicle according to the embodiments of the present application are described in detail.

[0031] The battery pack provided by the embodiments of the present application can be produced and sold as an independent component. Of course, it can also be used as a battery pack of a vehicle and as a component of the vehicle. The vehicle can be a fuel automobile, a gas automobile or a new energy automobile. The new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile, etc.

[0032] Of course, the technical solutions described in the embodiments of the present application can be applicable not only to the vehicles using the battery pack, but also to other electric devices using the battery pack.

[0033] The electric device can be a ship, a spacecraft, an electric toy and an electric tool, etc. The spacecraft includes an airplane, a rocket, a space shuttle and a spacecraft, etc. The electric toy includes a fixed or mobile electric toy, for example, a game machine, an electric automobile toy, an electric ship toy and an electric airplane toy, etc. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembling electric tool and a railway electric tool, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact electric drill, a concrete vibrator and an electric planer, etc. The embodiments of the present application do not specially limit the above electric devices.

[0034] Please refer to Figures 1 to 5The battery pack provided by the embodiments of the present application comprises a box body 10, a battery monomer assembly 20, and a control box 30. The box body 10 has a containing cavity 101, and the number of the box body 10 is multiple, and the multiple box bodies 10 are connected in sequence along the height direction X of the box body 10. The number of the battery monomer assembly 20 is multiple, and each containing cavity 101 is respectively provided with the battery monomer assembly 20. The control box 30 is arranged on one side of the box body 10 along the length direction Y of the box body 10, and the control box 30 is detachably connected to the side surface of each box body 10 along the length direction Y and is electrically connected with each battery monomer assembly 20.

[0035] The battery pack provided by the embodiments of the present application has the advantages that the control box 30 is arranged outside the containing cavity 101 of the box body 10, when the control box 30 needs to be maintained or replaced, the box body 10 does not need to be disassembled, and only the control box 30 needs to be disassembled, so that the operation is simple and convenient, the convenience of maintenance is improved, the maintenance cost in the later period is reduced, the sealing requirement of the box body 10 is guaranteed, the safety of the battery pack is guaranteed, and in addition, the control box 30 is connected to one side of each box body 10 along the length direction Y of the box body 10, so that the overall length of the battery pack in the length direction Y is reduced, the structural compactness is improved, and the electrical connection with the battery monomer assembly 20 in each box body 10 is facilitated.

[0036] Further, the battery pack is integrated with the control box 30, so that the control box 30 does not occupy the internal space of the box body 10, the space for arranging the battery monomer assembly 20 in the containing cavity 101 is improved, and the energy density of the battery pack is improved.

[0037] It should be noted that in the embodiments of the present application, “multiple” refers to two or more (including two).

[0038] The battery monomer assembly 20 is usually formed by arranging multiple battery monomers, and can provide external power as a power supply.

[0039] Optionally, each battery monomer assembly 20 comprises multiple battery monomers, that is, multiple battery monomers are contained in each containing cavity 101, and the multiple battery monomers in each containing cavity 101 are arranged according to a certain arrangement mode.

[0040] As an example, the battery monomer assembly 20 is contained in the containing cavity 101 by directly fixing multiple battery monomers to the box body 10. In any containing cavity 101, each battery monomer is fixed to the box body 10 to form the battery monomer assembly 20.

[0041] Optionally, the battery monomer can be in various shapes, for example, cylindrical, prismatic, blade-shaped, etc.

[0042] The box body 10 adopts a multi-layer cumulative structure arranged along the height direction X, and the number of layers can be increased or reduced according to requirements. The box body 10 is used to accommodate the battery monomer assembly 20, and the battery monomer assembly 20 can be protected by the box body 10. The box body 10 can be in various shapes, such as a cylinder, a cuboid, a prism, etc. Alternatively, the box body 10 is a cuboid box body.

[0043] The control box 30 is electrically connected with the battery monomer assembly 20 in each accommodation cavity 101, and a control unit can be arranged inside the control box 30 to be electrically connected with the battery monomer assembly 20. For example, the control box 30 can monitor the voltage, current, temperature and other parameters of each battery monomer in real time through the sensors inside the control box 30, and can also be responsible for managing the charging and discharging process of each battery monomer, and can also detect whether it is overcurrent, overvoltage, overtemperature, etc., so as to ensure the safe operation of the battery pack.

[0044] Alternatively, the detachable connection between the control box 30 and the box body 10 can be connected by fasteners 40 such as bolts, studs, screws, etc.

[0045] By arranging the control box 30 on the side where the size of the battery pack is larger, the layout is more reasonable, and the space occupied by the control box 30 can be reduced, which is beneficial to improve the space utilization rate of the battery pack, and the battery pack can also have more area to connect with external components or for other designs.

[0046] As shown in Figure 2 As an optional embodiment, each box body 10 is provided with a first connecting hole 102 on the side surface facing the control box 30, and the control box 30 is provided with a plurality of second connecting holes spaced along the height direction X on the side surface facing the box body 10. The control box 30 abuts against each box body 10, the first connecting hole 102 and the second connecting hole are arranged one by one along the length direction Y, the positive electrode connecting piece of each battery monomer assembly 20 extends into the control box 30 through the first connecting hole 102 and the second connecting hole, and the negative electrode connecting piece of each battery monomer assembly 20 extends into the control box 30 through the first connecting hole 102 and the second connecting hole.

[0047] By arranging the control box 30 to abut against each box body 10, the distance between the control box 30 and each box body 10 can be reduced, which is beneficial to improve the space utilization rate of the battery pack, and the control box 30 and the box body 10 can be connected more closely, which is beneficial to improve the structural stability of the battery pack, and the first connecting hole 102 and the second connecting hole can be closer, which is beneficial to prevent external impurities and other particles from entering the battery pack, and it is also convenient for the positive electrode connecting piece and the negative electrode connecting piece of each battery monomer assembly 20 to extend into the control box 30 through the first connecting hole 102 and the second connecting hole.

[0048] And, by setting the control box 30 on one side of each box body 10 along the length direction Y, it is convenient to electrically connect it with the positive and negative connecting members of each layer of battery cell assembly 20, and easy to assemble and maintain.

[0049] The control box 30 can connect the positive and negative connecting members of the battery cell assembly 20 of the multi-layer box body 10 in series or in parallel according to requirements.

[0050] The shape of the first connecting hole 102 can be circular, polygonal, elliptical, etc., and the shape of the second connecting hole can be circular, polygonal, elliptical, etc.

[0051] Optionally, the first connecting hole 102 and the second connecting hole are the same in shape and are respectively arranged as rectangular holes, which is convenient for processing and sealing both of them after they are butted.

[0052] Optionally, the side surface of each box body 10 facing the control box 30 is respectively provided with a sealing member surrounding the first connecting hole 102, so as to seal the gap between the box body 10 and the control box 30, prevent external impurities and other particles from entering the box body 10 or the control box 30 through the first connecting hole 102, and improve the safety of the battery pack.

[0053] Optionally, the side surface of the control box 30 facing the box body 10 is respectively provided with a sealing member surrounding the second connecting hole, so as to seal the gap between the box body 10 and the control box 30, prevent external impurities and other particles from entering the box body 10 or the control box 30 through the first connecting hole 102, and improve the safety of the battery pack.

[0054] Optionally, the sealing member can be a sealing ring or a sealing strip.

[0055] Please refer to Figure 2 and Figure 3 As an optional embodiment, the box body 10 includes a frame 11 and a bottom plate 12, the frame 11 surrounds the periphery of the accommodating cavity 101, and the bottom plate 12 is connected to the frame 11 and surrounds one side of the accommodating cavity 101 along the height direction X. One bottom plate 12 is arranged between adjacent two battery cell assemblies 20 along the height direction X.

[0056] Each box body 10 includes a frame 11 and a bottom plate 12 connected to each other. When a plurality of box bodies 10 are connected in sequence along the height direction X, the bottom plate 12 of the upper box body 10 can be used to seal the lower box body 10 as the sealing surface of the lower box body 10. By this way, it is beneficial to reduce the number of parts, reduce the weight of the box body 10, and improve the space utilization of the battery pack, thereby improving the energy density of the battery pack.

[0057] Please continue to refer to Figures 2 to 4 As an optional embodiment, the battery pack further comprises a cover plate 13, the frames 11 are sequentially connected along the height direction X, a side surface of the frame 11 away from the accommodating cavity 101 is recessed inward to form a plurality of spaced mounting grooves 1101, and the two adjacent frames 11 are detachably connected through the fastener 40, and part of the fastener 40 is arranged in the mounting groove 1101.

[0058] By arranging the two adjacent frames 11 to be detachably connected, the assembly and disassembly are facilitated, and the mounting groove 1101 can provide a positioning and mounting space for the fastener 40 for detachable connection, which is beneficial to improve the assembly and disassembly efficiency.

[0059] Specifically, the frames 11 are connected and sealed through the fastener 40 and the sealing member, and the upper end of the frame 11 of the uppermost box body 10 is connected and sealed with the cover plate 13 through the fastener 40 and the sealing member.

[0060] Optionally, the sealing member can be a sealing ring or a sealing strip. Optionally, the fastener 40 can be selected as a bolt.

[0061] As shown in Figure 2 and Figure 3 As an optional embodiment, the bottom plate 12 has a medium flow channel, an inlet 121 and an outlet 122 respectively communicating with the medium flow channel, and the inlet 121 and the outlet 122 are arranged on the side of the bottom plate 12 facing the control box 30 along the length direction Y, and the control box 30 is located between the inlet 121 and the outlet 122 along the width direction Z of the box body 10.

[0062] By the above arrangement, the bottom plate 12 can be used not only to support the battery monomer assembly 20, but also to exchange heat with the battery monomer assembly 20, so that the space can be fully utilized, and the cost can be reduced. Moreover, since the two adjacent battery monomer assemblies 20 are provided with a bottom plate 12 between them along the height direction X, one bottom plate 12 can manage the heat of the battery monomer assemblies 20 on both sides, which is beneficial to improve the heat exchange efficiency of the bottom plate 12 to the battery monomer assembly 20, so that the temperature of the battery monomer assembly 20 can be raised or lowered to the preset range more quickly, which is beneficial to ensure the safe operation of the battery monomer assembly 20, and further improve the reliability of the battery pack.

[0063] Moreover, by arranging the control box 30 between the inlet 121 and the outlet 122 along the width direction Z of the box body 10, the layout is reasonable, the processing is facilitated, the inlet pipe connected with the inlet and the outlet pipe connected with the outlet can be arranged on the side of the control box 30, the space is fully utilized, and the space utilization rate of the battery pack is improved.

[0064] As shown in Figure 1 and Figure 2As shown, as an optional embodiment, the battery pack further comprises a cover plate 13, which is connected to the frame 11 of one of the outermost battery boxes 10 and surrounds one side of the accommodating cavity 101 opposite to the bottom plate 12 along the height direction X.

[0065] The cover plate 13 is used to seal the accommodating cavity 101 of one of the outermost battery boxes 10, so as to ensure the safety of the battery cell assemblies 20 in the accommodating cavity 101.

[0066] For example, the frame 11 surrounds the periphery of the accommodating cavity 101 of the battery box 10 and has a first opening and a second opening opposite to each other along the height direction X and respectively communicating with the accommodating cavity 101, the cover plate 13 is connected to the frame 11 of the uppermost battery box 10 and covers the first opening, each frame 11 is connected with the bottom plate 12, and the bottom plate 12 covers the second opening, the frames 11 are sequentially connected along the height direction X, and the bottom plate 12 of the previous battery box 10 can be used to seal the first opening of the next battery box 10. In this way, the sealing requirements of each battery box 10 of the battery pack can be ensured, and the material can be saved to reduce the cost.

[0067] As shown in Figure 1 , Figure 3 and Figure 4 , as an optional embodiment, the battery box 10 further comprises a connecting portion 50, the frame 11 comprises a pair of first walls 111 and a pair of second walls 112, the first walls 111 and the second walls 112 are alternately arranged and connected to each other, one of the first walls 111 is detachably connected to the control box 30, the second walls 112 are arranged in pairs and respectively extend along the length direction Y and are respectively provided with the connecting portion 50, and the battery box 10 is connected to an external member through the connecting portion 50.

[0068] The battery pack provided by the embodiment can be directly connected to the external member through the connecting portion 50 provided on the battery box 10, wherein the external member can include a vehicle. In the above manner, the battery pack can be assembled to the vehicle without the need of additional special supports or other adapter components, so that the space occupation can be reduced, the weight of the vehicle can be reduced, and the assembly efficiency can be improved.

[0069] The frame 11 can be made by an extrusion profile process, and the connecting portion 50 can be a hole body. Of course, the connecting portion 50 can also have other structures.

[0070] As an optional embodiment, the thickness of the first wall 111 is less than the thickness of the second wall 112.

[0071] Since the battery pack is connected with the external component through the connecting portion 50 provided on the first wall 111, the structural strength of the connecting portion 50 is improved in this way, thereby facilitating the stability of the connection between the connecting portion 50 and the external component, and further facilitating the stability of the connection between the battery pack and the external component.

[0072] Further, when the connecting portion 50 is a hole structure, increasing the thickness of the first wall 111 can also balance the influence of the hole on the structural strength of the first wall 111.

[0073] Please refer to Figure 5 As an optional embodiment, the battery pack further comprises a high-voltage connector 60, which is detachably connected to any side of the control box 30 along the height direction X and is electrically connected with the control box 30.

[0074] For example, when the battery pack is assembled in a vehicle, the high-voltage connector 60 is used to transmit the electric energy of the battery pack to each component in the vehicle system through different electric circuits.

[0075] Optionally, the positive and negative connecting pieces of each battery monomer assembly 20 extending into the control box 30 can be electrically connected to the high-voltage connector 60 in series or in parallel.

[0076] Optionally, the high-voltage connector 60 is detachably connected to the upper side of the control box 30 along the height direction X by means of fasteners such as bolts, which is convenient for assembly and disassembly.

[0077] As an optional embodiment, the battery pack further comprises a maintenance switch 70, which is arranged on any side of the control box 30 along the width direction Z of the box 10.

[0078] The maintenance switch 70 is used to disconnect the high-voltage circuit by pulling out the maintenance switch 70 when the battery pack is transported or maintained, so as to prevent electric shock accidents during maintenance and ensure the safety of maintenance personnel.

[0079] As an optional embodiment, the battery pack further comprises a communication interface 80, which is arranged on at least one side of the control box 30 along the width direction Z of the box 10.

[0080] For example, when the battery pack is assembled in a vehicle, the control box 30 can exchange data with other controllers on the vehicle through the communication interface 80, so as to realize information sharing and instruction transmission.

[0081] In the above manner, the high-voltage connector 60, the maintenance switch 70 and the communication interface 80 can be installed around the control box 30, the external space of the control box 30 is fully utilized, and the overall size of the battery pack along the length direction Y is also reduced.

[0082] The embodiment of the present application also provides a vehicle comprising the battery pack provided by any of the above embodiments.

[0083] The vehicle provided by the embodiment of the present application can improve the maintenance convenience of the vehicle, and thus reduce the cost, because the vehicle comprises the battery pack provided by any of the above embodiments, which is beneficial to improve the convenience of maintenance and reduce the cost of later maintenance.

[0084] Optionally, the vehicle further comprises a vehicle frame, and the battery pack is connected to the vehicle frame through the at least one box 10.

[0085] By connecting the battery pack to the vehicle frame as a part of the vehicle body, the battery pack can occupy less space of the vehicle, and thus improve the space utilization of the vehicle.

[0086] The height direction X of the box 10 is the same as the height direction X of the vehicle, the length direction Y of the box 10 is the same as the length direction Y of the vehicle, and the width direction Z of the box 10 is the same as the width direction Z of the vehicle.

[0087] It can be understood that the space in the width direction Z of the vehicle is limited, and thus, by connecting the box 10 to the vehicle frame and arranging the control box 30 on one side of the box 10 in the length direction Y, the battery pack can occupy less space in the width direction Z of the vehicle, and the layout is reasonable. In addition, the battery pack can increase or decrease the number of boxes 10 arranged in the height direction X according to the space of the vehicle, so that the vehicle has higher power, and the use flexibility is improved.

[0088] Optionally, the battery pack can be connected to the vehicle frame through the boxes 10, and the box 10 and the vehicle frame can be detachably connected through fasteners such as bolts, studs and screws, so as to facilitate assembly and disassembly and maintenance.

[0089] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent components can be substituted therefor. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery pack, characterized in that, include: The box (10) has a receiving cavity (101), and there are multiple boxes (10), which are connected in sequence along their own height direction (X); A battery cell assembly (20), wherein there are multiple battery cell assemblies (20), and each of the receiving cavities (101) is respectively provided with a battery cell assembly (20); A control box (30) is disposed on one side of the housing (10) along its own length direction (Y). The control box (30) is detachably connected to the surface of each housing (10) along the length direction (Y) and electrically connected to each battery cell assembly (20).

2. The battery pack according to claim 1, characterized in that, Each of the boxes (10) has a first connection hole (102) on the side surface facing the control box (30), and the control box (30) has a plurality of second connection holes spaced apart along the height direction (X) on the side surface facing the box (10). The control box (30) abuts against each of the housings (10). The first connection hole (102) and the second connection hole are arranged in a one-to-one correspondence along the length direction (Y). The positive terminal connector of each battery cell assembly (20) extends into the control box (30) through the first connection hole (102) and the second connection hole. The negative terminal connector of each battery cell assembly (20) extends into the control box (30) through the first connection hole (102) and the second connection hole.

3. The battery pack according to claim 1, characterized in that, The housing (10) includes a frame (11) and a base plate (12). The frame (11) surrounds the circumference of the receiving cavity (101). The base plate (12) is connected to the frame (11) and surrounds one side of the receiving cavity (101) along the height direction (X). A base plate (12) is provided between two adjacent battery cell assemblies (20) along the height direction (X).

4. The battery pack according to claim 3, characterized in that, Each of the frames (11) is connected sequentially along the height direction (X). The side surface of the frame (11) facing away from the receiving cavity (101) is recessed inward to form a plurality of spaced mounting grooves (1101). Adjacent frames (11) are detachably connected by fasteners (40), and some of the fasteners (40) are provided in the mounting grooves (1101).

5. The battery pack according to claim 3, characterized in that, The base plate (12) has a medium flow channel and an inlet (121) and an outlet (122) respectively connected to the medium flow channel. The inlet (121) and the outlet (122) are both located on the side of the base plate (12) facing the control box (30) along the length direction (Y) and along the width direction (Z) of the box body (10). The control box (30) is located between the inlet (121) and the outlet (122).

6. The battery pack according to claim 3, characterized in that, The battery pack also includes a cover plate (13) which is connected to the frame (11) of one of the outermost of the plurality of housings (10) and surrounds the receiving cavity (101) on the side facing away from the base plate (12) along the height direction (X).

7. The battery pack according to claim 3, characterized in that, The housing (10) further includes a connecting part (50). The frame (11) includes a pair of first walls (111) and a pair of second walls (112) arranged at intervals. The first walls (111) and the second walls (112) are alternately distributed and connected to each other. One of the first walls (111) is detachably connected to the control box (30). The pair of second walls (112) extend along the length direction (Y) and are respectively provided with the connecting part (50). The housing (10) is connected to external components through the connecting part (50).

8. The battery pack according to claim 7, characterized in that, The thickness of the first wall (111) is less than the thickness of the second wall (112).

9. The battery pack according to claim 1 or 2, characterized in that, The battery pack also includes a high-voltage connector (60), which is detachably connected to either side of the control box (30) along the height direction (X) and electrically connected to the control box (30); And / or, the battery pack further includes a maintenance switch (70) disposed on either side of the control box (30) along the width direction (Z) of the housing (10); And / or, the battery pack further includes a communication interface (80), which is provided on at least one side of the control box (30) along the width direction (Z) of the housing (10).

10. A vehicle, characterized in that, Includes the battery pack as described in any one of claims 1 to 9.

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