Battery pack and electric equipment

Abstract

The utility model provides a battery pack and electric equipment, the battery pack comprises a box body and a battery module, the box body comprises a bottom plate and a plurality of side plates which are connected with each other, and the bottom plate and the plurality of side plates enclose to form an accommodating cavity; the battery module is arranged in the accommodating cavity, the battery module is fixedly connected with the bottom plate, and a gap is formed between the battery module and the side plate; the battery pack further comprises a plurality of fixing blocks, one fixing block is arranged between one side plate and the battery module, and at least part of the gap is filled with the fixing blocks, so that additional supporting and fixing force is provided for the battery module, and free movement of the battery module in the containing cavity is limited; therefore, the influence of vibration or impact on the stability of the battery module is reduced, and the mechanical stability and durability of the battery pack are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field technology field of battery, specifically relates to a battery pack and electric equipment. BACKGROUND

[0002] In the automobile design, due to the limitation of battery pack volume and available space, the shape design of battery pack often needs to make a balance between multiple factors, while also meeting the needs of battery performance, heat dissipation requirements and installation convenience.

[0003] In the related art, in order to save space, the structural design of battery pack usually adopts special-shaped design, which can provide sufficient installation space for other related components in limited space and optimize the overall layout, however, this design will cause the gap between the battery module inside the battery pack and the four sides of the box, which will cause the module to shake or shift easily in the vibration and impact test of the vehicle, and then cause the fixation failure, affecting the durability and safety of the battery pack. SUMMARY

[0004] The embodiments of the utility model provide a battery pack and electric equipment to solve or at least partially solve the deficiencies in the background art.

[0005] In a first aspect, the embodiments of the utility model provide a battery pack, comprising:

[0006] The box comprises a bottom plate and a plurality of side plates connected, and the bottom plate and the plurality of side plates form a containing cavity;

[0007] The battery module is arranged in the containing cavity, and the battery module is fixedly connected with the bottom plate, and the battery module has a gap with the side plate;

[0008] The battery pack further comprises a plurality of fixing blocks, one fixing block is arranged between one side plate and the battery module, and the fixing block fills at least part of the gap.

[0009] In an embodiment, at least one side plate is an inclined side plate, and the distance between the side plate close to the bottom plate and the battery module is less than the distance between the side plate away from the bottom plate and the battery module.

[0010] The thickness of the fixing block close to the bottom plate is less than the thickness of the fixing block away from the bottom plate.

[0011] In an embodiment, the fixing block comprises a first abutting surface and a second abutting surface arranged oppositely, the first abutting surface abuts against the side plate, and the second abutting surface abuts against the battery module.

[0012] In an embodiment, the fixing block further comprises a first connecting surface connecting the first abutting surface and the second abutting surface, the first connecting surface being located on a side of the fixing block away from the bottom plate;

[0013] The first abutting surface and the first connecting surface have a second included angle, the second included angle being equal to the first included angle, and the first included angle being greater than or equal to 87 degrees and less than or equal to 89.5 degrees.

[0014] In an embodiment, the bottom plate is provided with a plurality of protrusions, the protrusions being located on a side of the bottom plate close to the battery module, and one protrusion corresponding to one fixing block;

[0015] The fixing block is provided with a fixing groove matching one protrusion on a side of the fixing block close to the bottom plate, and at least part of the protrusion is embedded in the corresponding fixing groove.

[0016] In an embodiment, in one protrusion and its corresponding fixing groove, the extension direction of the fixing groove is parallel to the extension direction of the protrusion, and the length of the fixing groove is greater than the length of the protrusion.

[0017] In an embodiment, the battery pack comprises a first adhesive layer, the first adhesive layer being arranged between the protrusion and the fixing groove, and the protrusion and the fixing groove being fixedly connected through the first adhesive layer.

[0018] In an embodiment, the battery pack comprises a second adhesive layer, the second adhesive layer being arranged between the battery module and the bottom plate, and the battery module and the bottom plate being fixedly connected through the second adhesive layer.

[0019] In an embodiment, the battery module comprises a first side wall arranged close to the fixing block, the fixing block comprises a first contact surface in contact with the battery module, and the size of the first side wall is greater than the size of the first contact surface.

[0020] In a second aspect, the embodiments of the utility model provide a kind of electric equipment, including the battery pack described in any one of the above embodiments.

[0021] The embodiments of the utility model have the following beneficial effects:

[0022] The utility model embodiment provides a kind of battery pack and electrical equipment, the battery pack includes box and battery module, the box includes the bottom plate and multiple side plates being connected, the bottom plate and multiple the side plate are enclosed to form containing cavity;The battery module is arranged in the containing cavity, the battery module is fixedly connected with the bottom plate, and the battery module has gap with the side plate;Wherein, the battery pack further includes multiple fixed blocks, by being arranged between one the side plate and the battery module one the fixed block, and the fixed block fills at least part the gap, to provide additional support and fixing force for the battery module, limit the free movement of the battery module located in the containing cavity, to reduce the influence of vibration or impact on the stability of the battery module, improve the mechanical stability and durability of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0024] Figure 1 The structural diagram of the battery pack provided by the utility model embodiment is shown.

[0025] Figure 2 The structural diagram of the battery pack provided by the utility model embodiment is shown.

[0026] Figure 3 The structural diagram of the battery pack provided by the utility model embodiment is shown.

[0027] Figure 4 The sectional view of the battery pack provided by the utility model embodiment is shown. Figure 3

[0028] Figure 5 The structural diagram of the fixed block provided by the utility model embodiment is shown.

[0029] Figure 6 The structural diagram of the box provided by the utility model embodiment is shown.

[0030] Mark explanation:

[0031] 1-battery pack; 11-box; 12-battery module; 13-fixed block; 14-first adhesive layer; 15-second adhesive layer;

[0032] 111-bottom plate; 112-side plate; 110-containing cavity; 1111-protrusion; 121-first side wall;​

[0033] 11111 - first protrusion; 11112 - second protrusion; 11113 - third protrusion; 11114 - fourth protrusion;

[0034] 131 - first abutting surface; 132 - second abutting surface; 133 - first connecting surface; 134 - fixing groove; 135 - first contact surface;

[0035] 1301 - first fixing block; 1302 - second fixing block; 1303 - third fixing block; 1304 - fourth fixing block. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model. In addition, it should be understood that the specific embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model. In the utility model, the orientation words such as 'up' and 'down' are generally used for indicating the up and down in the actual use or working state of the device, and the specific is the drawing direction in the drawings; and 'inner' and 'outer' are used for the contour of the device.

[0037] Please combine Figure 1 , Figure 2 and Figure 3 ; wherein, Figure 1 is the structural schematic diagram of the battery pack 1 provided by the embodiments of the utility model; Figure 2 is the exploded structural schematic diagram of the battery pack provided by the embodiments of the utility model;

[0038] Figure 3 is the top view structural schematic diagram of the battery pack provided by the embodiments of the utility model; it should be noted that, in order to clearly show the arrangement structure of the battery module, the top plate of the box is not drawn in the drawings provided by the embodiments of the utility model.

[0039] In an embodiment, the battery pack 1 comprises a box 11 and a battery module 12, the box 11 is usually made of aluminum alloy or other high-strength metal materials to provide sufficient structural strength and durability, especially when dealing with mechanical stress such as vehicle vibration and impact, and shows excellent performance; the box 11 is provided with a containing cavity 110, and the containing cavity 110 is used for arranging the battery module 12 and other equipment.

[0040] The battery module 12 is arranged in the accommodating cavity 110, the battery module 12 arranged in the accommodating cavity 110 can include a plurality of battery cells, the battery cells can include one of a lithium ion secondary battery, a lithium ion primary battery, a lithium-sulfur battery, a sodium lithium ion battery, a sodium ion battery or a magnesium ion battery, and the embodiment is not limited thereto; the battery cell can be a square battery cell, which has high energy density and good heat dissipation performance. At the same time, the design of the square battery cell not only facilitates close arrangement and maximizes the use of the internal space of the box body 11, but also can realize efficient energy output and management of the battery module 12 through appropriate wiring and connection mode.

[0041] Further, the box body 11 includes a top plate and a bottom plate 111 arranged oppositely, and a plurality of side plates 112 connected to the top plate and the bottom plate 111, the side plates 112 are arranged between the top plate and the bottom plate 111, and the bottom plate 111 and the plurality of side plates 112 form an accommodating cavity 110; the battery module 12 is fixedly connected with the bottom plate 111, so as to prevent the battery module 12 from moving or shaking during use, and the battery module 12 has a gap with the side plate 112, so that the installation and positioning of the battery module 12 are relatively easy, the precision requirement in the assembly process is reduced, and when the battery module 12 needs to be replaced or repaired, the gap between the battery module 12 and the side plate 112 also provides sufficient operation space, so that the maintenance work of the battery pack 1 is more convenient and efficient.

[0042] Among them, the battery pack 1 further includes a plurality of fixing blocks 13, one fixing block 13 is arranged between one side plate 112 and the battery module 12, and the fixing block 13 fills at least part of the gap, thereby providing additional support and fixing force for the battery module 12, limiting the free movement of the battery module 12, thereby reducing the influence of vibration or impact on the stability of the battery module 12, and improving the mechanical stability and durability of the battery pack 1.

[0043] Specifically, due to the limited volume of the battery module 12, the gap between the battery module 12 and the side plate 112 is inevitable, and in the case of not increasing the volume of the box body 11, the embodiment fills at least part of the gap by arranging the fixing block 13, which not only saves the internal space of the box body 11, but also effectively utilizes the originally ineffective gap area to enhance the fixation of the battery module 12.

[0044] Please continue to combine Figures 1 to 3In an embodiment, the fixing block 13 can be made of insulating material. Using insulating material as the fixing block 13 can effectively prevent electrical contact between the battery module 12 and the side plate 112, reduce the risk of short circuit, and improve the safety of the battery pack 1. At the same time, the insulating material can reduce heat conduction and reduce heat exchange between the battery module 12 and the surrounding structure, which helps to control the working temperature of the battery module 12, making the use and production of the battery module 12 safer.

[0045] In addition, the insulating material has good compression resistance and impact resistance, thereby improving the mechanical strength and stability of the fixing block 13 and ensuring that the battery module 12 will not be damaged by excessive vibration or impact during transportation and use.

[0046] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ; wherein, Figure 4 is a cross-sectional view of the battery pack 1 provided by the embodiment of the utility model. Figure 3

[0047] In an embodiment, at least one of the side plates 112 is an inclined side plate 112, and the distance between the side plate 112 close to the bottom plate 111 and the battery module 12 is less than the distance between the side plate 112 away from the bottom plate 111 and the battery module 12. Specifically, the side plates 112 of the box body 11 can all be the inclined side plates 112, and in the direction perpendicular to the bottom plate 111, the cross-sectional shape of the box body 11 is an inverted trapezoid with the upper part wider and the lower part narrower, thereby helping to improve the space utilization and overall integration of the battery pack 1, and further enhancing the performance and layout flexibility of the battery pack 1.

[0048] When the battery pack 1 is integrated in the limited internal space of a vehicle, the design of the side plate 112 enables the battery pack 1 to better adapt to the spatial limitations of the vehicle interior in terms of structure. It can be understood that by setting the distance between the side plate 112 close to the bottom plate 111 and the battery module 12 to be less than the distance between the side plate 112 away from the bottom plate 111 and the battery module 12, the box body 11 is designed to be wider at the top and narrower at the bottom. Not only does this save space at the lower part of the box body 11, allowing the battery pack 1 to be more compactly placed inside the vehicle, but it also leaves more space for the installation of other components in the upper part of the box body 11, facilitating the integration of other components required by the battery pack 1, such as wiring harnesses, heat dissipation systems, etc.

[0049] ​The thickness of the fixed block 13 near the bottom plate 111 is smaller than the thickness of the fixed block 13 away from the bottom plate 111; specifically, the fixed block 13 is a wedge-shaped fixed block 13; it can be understood that during the use of the vehicle, especially during the vibration and impact test, the gap between the battery module 12 and the side plate 112 is easy to cause the battery module 12 to shake or shift, thereby causing the fixing of the battery module 12 to fail, affecting the durability and safety of the battery pack 1; the present embodiment can more closely fill the gap between the battery module 12 and the side plate 112 by arranging the inclined side plate 112 and the wedge-shaped fixed block 13, thereby reducing the risk of the battery module 12 shaking or shifting.

[0050] At the same time, the shape of the fixed block 13 matches the gap between the side plate 112 and the battery module 12, the fixed block 13 can firmly fix the battery module 12, and no extra gap or too much space is occupied, effectively optimizing the space utilization rate inside the battery pack 1.

[0051] Please continue to combine Figures 1 to 4 ; in an embodiment, a plurality of fixed blocks 13 are arranged around at least part of the side plate 112 of the battery module 12, and the height of the fixed block 13 is greater than the height of the battery module 12, thereby providing more stable multidirectional support, so that the battery module 12 can maintain its position even under external force or vibration, preventing displacement or loosening, and ensuring the stability of the battery pack 1 during operation.

[0052] At the same time, since the height of the fixed block 13 is greater than the height of the battery module 12, the fixed block 13 can not only provide support for the battery module 12 from the side, but also to some extent resist the impact or vibration from the outside of the battery pack 1, reduce the external force acting directly on the battery module 12, and thereby improve the safety of the battery module 12, especially during high-speed driving or collision of the vehicle.

[0053] Further, the orthographic projection of the fixed block 13 on the bottom plate 111 is located in the bottom plate 111, thereby ensuring that the fixed block 13 and the bottom plate 111 have sufficient contact area, forming a stable connection, preventing the fixed block 13 from moving or falling off during use of the battery pack 1; and it can also avoid the fixed block 13 exceeding the boundary of the bottom plate 111 during installation, thereby effectively utilizing the internal space of the box body 11, achieving compact and efficient layout design.

[0054] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ; wherein,Figure 5 A structure diagram of the fixing block is provided in the embodiments of the utility model.

[0055] In an embodiment, the fixing block 13 comprises a first abutting surface 131 and a second abutting surface 132 arranged oppositely, the first abutting surface 131 abuts against the side plate 112, and the second abutting surface 132 abuts against the battery module 12.

[0056] It can be understood that, in the embodiment, the first abutting surface 131 abuts against the side plate 112, so that the contact area of the fixing block 13 on the side plate 112 is increased, and the second abutting surface 132 abuts against the battery module 12, so that the contact area of the fixing block 13 on the battery module 12 is increased, the shape and mounting position of the fixing block 13 can better match the gap, thereby improving the fastening and stability of the fixing block 13 and the battery module 12, and effectively preventing the lateral displacement of the battery module 12 caused by vibration or other external forces during use.

[0057] Please continue to combine Figures 1 to 5 In an embodiment, the fixing block 13 further comprises a first connecting surface 133 connecting the first abutting surface 131 and the second abutting surface 132, the first connecting surface 133 is located on the side of the fixing block 13 away from the bottom plate 111; wherein the side plate 112 and the bottom plate 111 have a first included angle a, the first abutting surface 131 and the first connecting surface 133 have a second included angle β, and the second included angle β is equal to the first included angle a, so that the fixing block 13 can better match the gap between the side plate 112 and the battery module 12, reduce unnecessary space waste, and improve the overall space utilization rate of the battery pack 1; at the same time, the geometric shape and included angle design of the fixing block 13 make it easier to place the fixing block 13 in the appropriate position during installation, reduce adjustment time and complexity, and improve production efficiency.

[0058] Further, the first included angle a is greater than or equal to 87 degrees and less than or equal to 89.5 degrees, and the second included angle β is greater than or equal to 87 degrees and less than or equal to 89.5 degrees; it can be understood that, in the vehicle interior or a specific installation environment, the space may be limited, and in the embodiment, appropriate first included angle a and second included angle β are selected according to the size and shape of the available space of the vehicle inner wall, to ensure that the battery pack 1 can be smoothly installed without affecting other components; the specific size of the first included angle a and the specific size of the second included angle β can be reasonably selected according to different needs and limitations in actual application, to ensure the best performance of the battery pack 1 in terms of structure, function and safety, etc.

[0059] Please continue to combine Figures 1 to 5 ; in an embodiment, the battery module 12 comprises a first side wall 121 arranged close to the fixed block 13, the fixed block 13 comprises a first contact surface 135 in contact with the battery module 12, the size of the first side wall 121 is greater than the size of the first contact surface 135, so that the size of the fixed block 13 can be effectively limited, avoiding the fixed block 13 occupying unnecessary space and affecting the layout of the battery module 12, so that the overall design of the battery pack 1 can be more compact; at the same time, the space utilization of the box 11 is improved.

[0060] Specifically, one of the fixed blocks 13 corresponds to one of the side plates 112, and there is a gap between the fixed block 13 and the side plate 112 not corresponding thereto; that is, the fixed block 13 directly contacts the side plate 112 corresponding thereto, and does not contact other side plates 112 not corresponding thereto, thereby avoiding the interference of contacting other side plates 112, simplifying the installation steps, and improving the production efficiency.

[0061] Please continue to combine Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ; wherein, Figure 6 is a structural diagram of the box provided by the embodiment of the utility model.

[0062] In an embodiment, a plurality of protrusions 1111 are provided on the bottom plate 111, the protrusions 1111 are located on one side of the bottom plate 111 close to the battery module 12, and one of the protrusions 1111 corresponds to one of the fixed blocks 13. The side of the fixed block 13 close to the bottom plate 111 is provided with a fixed groove 134 matched with one of the protrusions 1111, and at least part of the protrusions 1111 are embedded in the corresponding fixed groove 134.

[0063] It should be noted that the technical solution of the utility model is applicable to the installation and application scene of the battery pack 1, in order to better illustrate the innovation of the utility model, the technical solution of the utility model is exemplified by taking that the bottom plate 111 comprises a plurality of protrusions 1111 and the fixed block 13 is provided with a fixed groove 134.

[0064] It can be understood that, in the embodiment, one of the protrusions 1111 corresponds to one of the fixed blocks 13, the shapes of the protrusions 1111 and the fixed groove 134 are matched, and at least part of the protrusions 1111 are embedded in the corresponding fixed groove 134, so that the self-alignment function can be provided during the installation of the fixed block 13, human errors are reduced, and the installation efficiency is improved.

[0065] Meanwhile, when the fixing block 13 is inserted into the preset position from top to bottom, the fixing groove on the fixing block 13 will correspond to the protrusion 1111 on the bottom plate 111, and the protrusion 1111 will be inserted into the fixing groove 134, the matching structure of the protrusion 1111 and the fixing groove 134 can effectively increase the contact area of the fixing block 13 and the bottom plate 111, and can ensure that the fixing block 13 is firmly embedded on the bottom plate 111, reducing displacement caused by vibration or other external factors, thereby limiting the fixing block 13 in the direction in which the battery module 12 points to the side plate 112, reducing displacement caused by vibration or other external factors.

[0066] In addition, through the embedded fixing design, the fixing block 13 and the bottom plate 111 can be effectively combined to improve the structural strength of the entire battery pack 1, resist external impact and mechanical stress, especially in high-vibration environments such as cars.

[0067] Please continue to combine Figures 1 to 6 In an embodiment, in one of the protrusions 1111 and its corresponding one of the fixing grooves 134, the extension direction of the fixing groove 134 is parallel to the extension direction of the protrusion 1111, and the length of the fixing groove 134 is greater than the length of the protrusion 1111, so that the protrusion 1111 can avoid sliding or loosening in the fixing groove 134, and the protrusion 1111 can be more stable in the fixing groove 134, effectively enhancing the fixing strength between the fixing block 13 and the bottom plate 111, and thereby improving the stability of the battery module 12.

[0068] In order to better illustrate the innovation of the present application, the present embodiment takes the battery pack 1 comprising a first fixing block 1301, a second fixing block 1302, a third fixing block 1303 and a fourth fixing block 1304, the first fixing block 1301 and the second fixing block 1302 are arranged opposite to each other along the width direction of the battery module 12, the third fixing block 1303 and the fourth fixing block 1304 are arranged opposite to each other along the length direction of the battery module 12, the bottom plate 111 is provided with a first protrusion 11111, a second protrusion 11112, a third protrusion 11113 and a fourth protrusion 11114, the first protrusion 11111 is arranged corresponding to the first fixing block 1301, the second protrusion 11112 is arranged corresponding to the second fixing block 1302, the third protrusion 11113 is arranged corresponding to the third fixing block 1303, and the fourth protrusion 11114 is arranged corresponding to the fourth fixing block 1304 as an example to illustrate the technical scheme of the present application; it should be noted that the width direction of the battery module 12 is Figure 3The length direction of the battery module 12 is the X direction in the figure. Figures 1 to 6 The Y direction in the figure.

[0069] The fixing groove 134 penetrates the first fixing block 1301 and the second fixing block 1302 along the length direction of the battery module 12, the fixing groove 134 penetrates the third fixing block 1303 and the fourth fixing block 1304 along the width direction of the battery module 12, the extension direction of the first protrusion 11111 is the same as the length direction of the battery module 12, the extension direction of the second protrusion 11112 is the same as the length direction of the battery module 12, the extension direction of the third protrusion 11113 is the same as the width direction of the battery module 12, and the extension direction of the fourth protrusion 11114 is the same as the width direction of the battery module 12.

[0070] It can be understood that, by matching the fixing groove 134 and the protrusion 1111 in different directions, the battery module 12 can be quickly and accurately aligned and fixed during installation, reducing the complexity of installation, avoiding installation errors or misalignment, and improving manufacturing efficiency; at the same time, the matching of the protrusion 1111 and the fixing groove 134 in different directions allows the battery module 12 to be supported in multiple directions, reducing the possibility of loosening and improving the stability of the overall structure.

[0071] Please continue to combine Figures 1 to 6 In an embodiment, the battery pack 1 includes a first adhesive layer 14, which is arranged between the protrusion 1111 and the fixing groove 134, and the protrusion 1111 and the fixing groove 134 are fixedly connected through the first adhesive layer 14.

[0072] It can be understood that, by arranging the first adhesive layer 14 between the protrusion 1111 and the fixing groove 134, the connection strength between the protrusion 1111 and the fixing groove 134 can be effectively enhanced, that is, the adhesion of the first adhesive layer 14 allows the protrusion 1111 and the fixing groove 134 to form a more secure combination, reducing the loosening of the connection caused by vibration or impact, and thus ensuring the stability of the battery module 12 during operation.

[0073] At the same time, in the fixing groove 134, the first adhesive layer 14 covers the protrusion 1111, and the first adhesive layer 14 can play a certain shock absorption role, effectively absorbing the vibration caused by vehicle driving or other external impact, protecting the stability of the connection between the fixing block 13 and the bottom plate 111, and improving the durability and reliability of the fixing block 13.

[0074] Please continue to combine ​In an embodiment, the battery pack 1 comprises a second adhesive layer 15 arranged between the battery module 12 and the bottom plate 111, and the battery module 12 and the bottom plate 111 are fixedly connected through the second adhesive layer 15.

[0075] The second adhesive layer 15 can be an insulating adhesive layer, which includes but is not limited to double-sided adhesive tape. The battery module 12 and the bottom plate 111 can be fixedly bonded through the double-sided adhesive tape, so that the fixing between the battery module 12 and the bottom plate 111 is more firm, effectively reducing the risk of displacement of the battery module 12 during vehicle use, thereby further improving the safety and reliability of the battery pack 1. In addition, when the battery module 12 is damaged, it is also convenient to remove and replace.

[0076] Further, the second adhesive layer 15 can be glue, and the second adhesive layer 15 is in contact with the fixing block 13. The fixing block 13 can act as a retaining wall for the second adhesive layer 15 to prevent overflow of the second adhesive layer 15, thereby reducing material waste. At the same time, the fixing effect and stability between the battery module 12 and the bottom plate 111 are further enhanced.

[0077] The embodiment provides a power consuming device, which comprises the battery pack 1 described in any of the above embodiments.

[0078] It can be understood that the battery pack 1 has been described in detail in the above embodiments, and will not be repeated here.

[0079] The power consuming device comprises a battery pack used as a power supply for the power consuming device. Therefore, the power consuming device also has the advantages of the battery pack described above, thereby helping to simplify the overall structure of the power consuming device. The power consuming device can be a car, an aircraft, a mechanical production device, etc.

[0080] The above describes the embodiments of the utility model in detail. The principle and implementation mode of the utility model are described by applying specific examples. The above embodiment description is only used to help understand the method and core idea of the utility model. Meanwhile, for those skilled in the art, according to the principle of the utility model, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as a limitation of the utility model.

Claims

1. A battery pack, characterized in that: include: The box body comprises a bottom plate and a plurality of side plates connected to each other, wherein the bottom plate and the plurality of side plates enclose a receiving cavity; A battery module is disposed in the accommodating cavity, the battery module is fixedly connected to the bottom plate, and a gap is formed between the battery module and the side plate; The battery pack further includes a plurality of fixing blocks, one of the fixing blocks is disposed between one of the side plates and the battery module, and the fixing block fills at least a portion of the gap.

2. The battery pack according to claim 1, wherein: At least one of the side panels is an inclined side panel, and the distance between the battery module and a side of the side panel close to the bottom panel is smaller than the distance between the battery module and a side of the side panel away from the bottom panel; Wherein, the thickness of the fixing block at a side close to the bottom plate is smaller than the thickness of the fixing block at a side away from the bottom plate.

3. The battery pack according to claim 2, wherein: The fixing block includes a first abutting surface and a second abutting surface that are arranged opposite to each other, the first abutting surface abuts against the side plate, and the second abutting surface abuts against the battery module.

4. The battery pack according to claim 3, wherein: The fixing block further includes a first connecting surface connecting the first abutting surface and the second abutting surface, wherein the first connecting surface is located on a side of the fixing block away from the bottom plate; There is a first angle between the side plate and the bottom plate, a second angle between the first abutting surface and the first connecting surface, the second angle is equal to the first angle, and the first angle is greater than or equal to 87 degrees and less than or equal to 89.5 degrees.

5. The battery pack according to any one of claims 1 to 4, characterized in that: The bottom plate is provided with a plurality of protrusions, the protrusions being located on a side of the bottom plate close to the battery module, and one protrusion corresponding to one fixing block; A fixing groove matching one of the protrusions is provided on one side of the fixing block close to the bottom plate, and at least a portion of the protrusion is embedded in the corresponding fixing groove.

6. The battery pack according to claim 5, characterized in that: In one of the protrusions and the corresponding fixing groove, an extending direction of the fixing groove is parallel to an extending direction of the protrusion, and a length of the fixing groove is greater than a length of the protrusion.

7. The battery pack according to claim 5, characterized in that: The battery pack includes a first adhesive layer, which is disposed between the protrusion and the fixing groove. The protrusion and the fixing groove are fixedly connected through the first adhesive layer.

8. The battery pack according to any one of claims 1 to 4, characterized in that: The battery pack includes a second adhesive layer, which is arranged between the battery module and the bottom plate. The battery module and the bottom plate are fixedly connected through the second adhesive layer.

9. The battery pack according to any one of claims 1 to 4, characterized in that: The battery module includes a first side wall disposed near the fixing block. The fixing block includes a first contact surface in contact with the battery module. A size of the first side wall is larger than a size of the first contact surface.

10. An electrical device, characterized in that: A battery pack comprising the battery pack according to any one of claims 1 to 9.

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