Battery box body and battery pack

Abstract

The utility model provides a battery box body and a battery pack, relates to the technical field of battery temperature control, and aims to solve the technical problem that the temperature of a battery close to a beam body rises due to the fact that heat is transferred to the beam body when a cold plate is heated to a certain extent. The battery box body provided by the utility model comprises a temperature control component and a frame, the frame comprises a plurality of beam bodies, the temperature control component is arranged on the bottom side of the frame, protruding parts are formed on the faces, facing the temperature control component, of the beam bodies and / or the positions, corresponding to the beam bodies, of the temperature control component, and heat insulation gaps are formed between the temperature control component and the beam bodies through the protruding parts.

Description

Technical Field

[0001] This utility model relates to the field of battery temperature control technology, and in particular to a battery box and battery pack. Background Technology

[0002] CTP (Cell to Pack) is a commonly used battery assembly solution in the battery industry. It integrates batteries directly into the battery pack, thus eliminating the intermediate module stage.

[0003] CTP improves the utilization rate of the battery's internal space and volumetric energy density. The box beams form a closed frame-shaped space, and the battery is assembled inside after being pressed together. Insulating plastic sheets are set at the ends to contact the beams, serving as electrical insulation isolation.

[0004] However, in conventional CTP solutions, the end cells exchange heat with the beam during heating or cooling of the liquid cooling plate, causing temperature deviations between the end cells and the middle cells. This affects the consistency between the cells and reduces the overall lifespan of the pack. Therefore, the current solution to the heat transfer problem between the bottom water-cooled plate and the beam mainly involves attaching thermal insulation foam material to the bottom of the beam to reduce the heat exchange between the water-cooled plate and the bottom surface of the beam.

[0005] However, the thermal insulation performance of the insulating foam is limited. When the temperature difference between the water-cooled plate and the beam body is large, heat will still be conducted to the beam body, which will cause the temperature of the battery in contact with the beam body to rise and create a large temperature difference between the battery and the intermediate battery.

[0006] Therefore, there is an urgent need to provide a battery housing and battery pack to address the problems existing in the prior art to some extent. Utility Model Content

[0007] The purpose of this utility model is to provide a battery box and battery pack to solve, to a certain extent, the technical problem of heat transfer to the beam when the cold plate is heated, causing the temperature of the battery near the beam to rise.

[0008] This utility model provides a battery box, including a frame comprising multiple beams; a temperature control component disposed on one side of the frame; a protrusion disposed on the side of the beams facing the temperature control component and / or on the temperature control component at a position corresponding to the beams, the protrusion abutting against the temperature control component and the beams to form a heat insulation gap; and a locking component penetrating the temperature control component, the protrusion, and the side of the beams facing the temperature control component to fix the temperature control component to the beams.

[0009] The battery box provided by this utility model also includes a heat insulation component, which is sleeved on the outer periphery of the protrusion and elastically abuts against the beam and the temperature control component.

[0010] Specifically, the protrusion has a ring-shaped structure, the heat insulation component is an annular airbag, the inner diameter of the heat insulation component is less than or equal to the outer diameter of the protrusion, and the thickness of the heat insulation component is greater than or equal to the thickness of the protrusion.

[0011] Specifically, the thermal conductivity of the insulation component is ≤0.2w / mk.

[0012] Wherein, when both the side of the beam facing the temperature control component and the position on the temperature control component corresponding to the beam are formed with protrusions, the protrusions on the beam and the protrusions on the temperature control component are alternately spaced, or the protrusions on the beam are inserted into the protrusions on the temperature control component and abut against each other.

[0013] Specifically, the height at both ends of the beam is less than the height at the middle of the beam, and the height of the protrusions at both ends of the beam is greater than the height of the protrusions at the middle of the beam, so that the height of the heat insulation gap at both ends of the beam is greater than the height of the heat insulation gap at the middle of the beam.

[0014] Furthermore, the protrusion on the beam is integrally formed with the beam; the protrusion on the temperature control component is welded to the temperature control component.

[0015] The beam has a first fixing hole on its side facing the temperature control component, and a protrusion on the beam surrounds the circumference of the first fixing hole. The temperature control component has a second fixing hole corresponding to the position of the beam, and a protrusion on the temperature control component surrounds the circumference of the second fixing hole. The protrusion on the temperature control component is fixed to the second fixing hole by a sealing connection, which is embedded in the second fixing hole to simultaneously seal the side of the temperature control component facing the beam and at least a portion of the inner wall of the second fixing hole. The protrusion on the beam can abut against the sealing connection.

[0016] Specifically, the locking component includes a threaded sleeve and a bolt. The threaded sleeve passes through the temperature control component, the protrusion, and the side of the beam facing the temperature control component. The bolt enters the threaded sleeve and engages with it, causing one end of the threaded sleeve to expand and deform, abutting against the beam.

[0017] Compared with the prior art, the battery box provided by this utility model has the following advantages:

[0018] The battery box provided by this utility model includes a frame, which includes multiple beams; a temperature control component, which is disposed on one side of the frame; a protrusion, which is disposed on the side of the beam facing the temperature control component and / or on the temperature control component at a position corresponding to the beam, the protrusion abutting against the temperature control component and the beam to form a heat insulation gap; and a locking component, which penetrates the temperature control component, the protrusion, and the side of the beam facing the temperature control component to fix the temperature control component to the beam.

[0019] Analysis shows that the temperature control component on one side of the frame can provide heat to the battery carried by the battery box, thereby ensuring the battery temperature. The locking component, which in this application penetrates the temperature control component, the protrusion, and the side of the beam facing the temperature control component, can achieve a stable connection between the temperature control component and the beam.

[0020] By forming protrusions on the side of the beam facing the temperature control component and / or on the temperature control component corresponding to the position of the beam, that is, the protrusions in this application can be formed on the side of the beam facing the temperature control component, or on the position of the temperature control component corresponding to the beam, or on both the beam and the temperature control component, a heat insulation gap is formed between the beam and the temperature control component. The heat insulation gap can reduce or prevent heat from being transferred from the temperature control component to the beam and then from the beam to the battery to a certain extent. This prevents the battery temperature near the beam from being higher than the battery temperature in other locations, which affects the overall stability and lifespan of the battery pack.

[0021] In addition, this utility model also provides a battery pack, including a battery and the aforementioned battery housing; the beams in the battery housing form an installation space, the batteries are arranged in the installation space, and the temperature control components in the battery housing exchange heat with the batteries.

[0022] The battery pack using the battery box provided in this application can achieve uniform heat exchange between the temperature control components and the batteries, and the temperature difference between the batteries in contact with the beam and those not in contact with the beam will not be too large. This ensures the uniformity of the battery temperature inside the battery box, thereby ensuring the overall stability and safety of the battery pack and improving its service life. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1This is a schematic diagram of the overall structure of the battery box provided in an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the frame in the battery box provided in an embodiment of the present utility model;

[0026] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0027] Figure 4 for Figure 2 A magnified view of a section at point B in the middle;

[0028] Figure 5 A cross-sectional view of the beam and temperature control component in the battery box provided in an embodiment of this utility model;

[0029] Figure 6 This is a schematic diagram of the convex-shaped beam structure in the battery box provided in an embodiment of the present invention.

[0030] In the diagram: 1-Frame; 101-Beam; 1011-First fixing hole; 2-Temperature control component; 201-Second fixing hole; 3-Protrusion; 4-Heat insulation component; 5-Locking component; 6-Battery. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0032] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0036] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.

[0037] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0038] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0039] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0040] like Figures 1-3 As shown, this utility model provides a battery box, including a frame 1, the frame 1 including multiple beams 101; a temperature control component 2, the temperature control component 2 is disposed on one side of the frame 1; a protrusion 3, disposed on the side of the beam 101 facing the temperature control component 2 and / or on the temperature control component 2 at a position corresponding to the beam 101, the protrusion 3 abutting between the temperature control component 2 and the beam 101 to form a heat insulation gap; and a locking component 5, penetrating the temperature control component 2, the protrusion 3 and the side of the beam 101 facing the temperature control component 2 to fix the temperature control component 2 to the beam 101.

[0041] Compared with the prior art, the battery box provided by this utility model has the following advantages:

[0042] The battery housing provided by this utility model, through the temperature control component 2 provided on one side of the frame 1, can perform thermal management for the battery 6 carried by the battery housing, thereby ensuring that the temperature of the battery 6 is not too high or too low, thus affecting its performance. Furthermore, through the provided locking component 5, which in this application penetrates the temperature control component 2, the protrusion 3, and the side of the beam 101 facing the temperature control component 2, a stable connection can be achieved between the temperature control component 2 and the beam 101.

[0043] By forming a protrusion 3 on the side of the beam 101 facing the temperature control component 2 and / or on the temperature control component 2 corresponding to the position of the beam 101, the protrusion 3 in this application can be formed on the side of the beam 101 facing the temperature control component 2, or on the position of the temperature control component 2 corresponding to the beam 101, or on both the beam 101 and the temperature control component 2. This creates a heat insulation gap between the beam 101 and the temperature control component 2, while reducing the contact area between the beam 101 and the temperature control component 2. This can reduce or prevent heat transfer from the temperature control component 2 to the beam 101, and then from the beam 101 to the battery 6, thus causing the temperature of the battery 6 near the beam 101 to be higher than that of the battery 6 at other positions, affecting the overall stability and lifespan of the battery pack.

[0044] It should be noted that the locking component 5 in this application can be fastened with bolts, screws, rivets or pins to achieve a stable connection between the temperature control component 2 and the beam 101. When rivets are used, a more stable connection between the temperature control component 2 and the beam 101 can be achieved.

[0045] Optionally, such as Figure 4 Combination Figure 5 As shown, the battery box provided by this utility model also includes a heat insulation component 4, which is sleeved on the outer periphery of the protrusion 3 and elastically abuts against the beam 101 and the temperature control component 2.

[0046] By installing a heat insulation component 4 around the outer periphery of the protrusion 3, the heat transfer between the beam 101 and the temperature control component 2 can be reduced to a certain extent. In addition, it can also provide support for the protrusion 3 to a certain extent, ensuring the stability of the connection between the protrusion 3 and the beam 101 and the temperature control component 2, and avoiding damage or breakage of the beam 101 and the temperature control component 2.

[0047] Preferably, such as Figure 5 As shown, the protrusion 3 in this application has a ring-shaped structure, the heat insulation component 4 is an annular airbag, the inner diameter of the heat insulation component 4 is less than or equal to the outer diameter of the protrusion 3, and the thickness of the heat insulation component 4 is greater than or equal to the thickness of the protrusion 3.

[0048] Optionally, before installation, the inner diameter of the heat insulation component 4 is smaller than the outer diameter of the protrusion 3, while the thickness of the heat insulation component 4 is greater than the thickness of the protrusion 3. After installation, the heat insulation component 4 is fitted onto the protrusion 3, causing its inner diameter to expand to equal the outer diameter of the protrusion 3. The heat insulation component 4 is pressed against the beam 101 and the temperature control component 2, causing its thickness to equal the thickness of the protrusion 3. This design facilitates the installation of the heat insulation component 4 and improves its reliability.

[0049] The protrusion 3 has a ring-shaped structure, which facilitates the passage of the locking component 5. By making the heat insulation component 4 an annular airbag, on the one hand, the hollow structure of the airbag can use the gas filled inside to achieve heat insulation. On the other hand, since the annular airbag has a certain degree of elasticity, it can also play a certain role in buffering and sealing. This can, to a certain extent, prevent the locking component 5 from being over-compressed during assembly, which could cause damage to the beam 101 and the temperature control component 2.

[0050] More preferably, the thermal conductivity of the heat insulation component 4 in this application is ≤0.2w / mk, which can reduce the heat transfer from the heat insulation component 4 to the beam 101 to a certain extent, thereby further reducing the temperature difference between the battery 6 in contact with the beam 101 and the battery 6 away from the beam 101, and ensuring the temperature balance of each battery 6 in the overall battery pack.

[0051] It should be noted that the material of the heat insulation component 4 in this application can be nylon, ABS, PC, and rigid silicone rubber, etc. It is understood that the thermal conductivity of the heat insulation component 4 can be the thermal conductivity of the aforementioned materials. When the heat insulation component 4 is filled with gas, the thermal conductivity of the gas is much lower than that of the heat insulation component 4, further reducing the overall thermal conductivity and thus improving the heat insulation effect.

[0052] It is understandable that when both the side of the beam 101 facing the temperature control component 2 and the corresponding position on the temperature control component 2 have protrusions 3, the protrusions 3 on the beam 101 and the protrusions 3 on the temperature control component 2 are alternately spaced and abut against each other.

[0053] By alternating the protrusions 3 on the beam 101 and the temperature control component 2, the overall thickness of the beam 101 and the temperature control component 2 can be controlled during assembly, preventing excessive spacing between them from affecting connection stability. This also improves the stability of the connection between the beam 101 and the temperature control component 2. It should be noted that the alternating spacing can mean that the protrusions 3 on the beam 101 are located outside the protrusions 3 on the temperature control component 2, or vice versa, as long as the alternating arrangement achieves a sealing effect. Furthermore, the sidewalls of the protrusions 3 on the beam 101 and the temperature control component 2 can abut against each other, further enhancing the sealing effect.

[0054] Furthermore, such as Figure 5 As shown, when both the beam 101 and the temperature control component 2 are provided with protrusions 3, the inner ring diameter of the protrusions 3 on the temperature control component 2 can be made larger, so as to realize the purpose of inserting the protrusions 3 of the beam 101 into the protrusions 3 of the temperature control component 2 and abutting against each other. Through this design, the pre-assembly of the beam 101 and the temperature control component 2 can be realized, which facilitates the installation and production of the beam 101 and the temperature control component 2.

[0055] It is understandable that the plug-in connection method can also make the inner ring diameter of the protrusion 3 on the beam 101 larger than the inner ring diameter on the temperature control component 2, so that during assembly, the protrusion 3 on the temperature control component 2 can be inserted into the protrusion 3 on the beam 101, thus achieving the above purpose.

[0056] Preferably, such as Figure 6As shown, the height at both ends of beam 101 is less than the height at the middle of beam 101, and the height of the protrusions 3 at both ends of beam 101 is greater than the height of the protrusions 3 at the middle of beam 101, making beam 101 as a whole convex shape. This results in the height of the thermal insulation gaps at both ends of beam 101 being greater than the height of the thermal insulation gaps at the middle of beam 101. By reducing the height at both ends of beam 101 and simultaneously increasing the height of the protrusions 3 at both ends, the height of the thermal insulation gaps at both ends of beam 101 is adjusted, thereby reducing the overall temperature difference.

[0057] In some cases, since the inlet of the temperature control component 2 is located on both sides, corresponding to the two ends of the beam 101, the two ends of the beam 101 can obtain more heat than other positions when under low-temperature heating conditions. This results in the battery 6 near the ends of the beam 101 obtaining more heat and generating a larger temperature difference. Therefore, by making the height of the heat insulation gap at both ends of the beam 101 greater than the height of the heat insulation gap in the middle of the beam 101, this application can make the distance between the two ends of the beam 101 and the temperature control component 2 larger, thus providing a longer heat transfer path. This can reduce heat transfer to a certain extent, reduce the temperature difference between the ends and the middle of the beam 101, ensure the temperature of the battery 6 is uniform, and improve the overall temperature stability.

[0058] Preferably, the protrusion 3 on the beam 101 in this application is integrally formed with the beam 101; the protrusion 3 on the temperature control component 2 is welded to the temperature control component 2.

[0059] Optionally, a first fixing hole 1011 is opened on the side of the beam 101 facing the temperature control component 2, and a protrusion 3 on the beam 101 surrounds the circumference of the first fixing hole 1011; a second fixing hole 201 is opened on the temperature control component 2 corresponding to the position of the beam 101, and a protrusion 3 on the temperature control component 2 surrounds the circumference of the second fixing hole 201. The protrusion 3 on the temperature control component 2 is fixed to the second fixing hole 201 by a sealing connection. The sealing connection is embedded in the second fixing hole 201 to simultaneously seal the side of the temperature control component 2 facing the beam 101 and at least part of the inner wall of the second fixing hole 201. The protrusion 3 on the beam 101 can abut against the sealing connection.

[0060] In this application, the sealing connection part and the protrusion 3 are integrally formed. The protrusion 3 extends axially, and the sealing connection part includes a contact section that fits against the surface of the temperature control component 2 and a sealing section that abuts against the inner wall of the second fixing hole 201. The contact section can achieve connection with the protrusion 3, and the sealing section can achieve a sealed connection between the protrusion 3 and the second fixing hole 201 of the temperature control component 2.

[0061] Accordingly, the inner diameter of the protrusion 3 in this application is larger than the outer diameter of the protrusion 3 on the beam 101, so that the protrusion 3 on the beam 101 can be inserted into the protrusion 3 of the temperature control component 2, so as to achieve contact with the contact section and contact with the inner wall of the protrusion 3 of the temperature control component 2.

[0062] It is understandable that, since the beam 101 has a first fixing hole 1011, and the protrusion 3 surrounding the first fixing hole 1011 is inserted into the protrusion 3 of the temperature control component 2, the center of the first fixing hole 1011 and the center of the second fixing hole 201 are located on the same axis, so that the locking component 5 can pass through smoothly and realize the connection between the temperature control component 2 and the beam 101.

[0063] Preferably, the locking component 5 in this application includes a threaded sleeve and a bolt. The threaded sleeve passes through the temperature control component 2, the protrusion 3 and the side of the beam 101 facing the temperature control component 2. The bolt enters the threaded sleeve and engages with the threaded sleeve, causing one end of the threaded sleeve to expand and deform and abut against the beam 101.

[0064] In addition, this utility model also provides a battery pack, including a battery 6 and the aforementioned battery housing; the beam 101 in the battery housing forms an installation space, the battery 6 is arranged in the installation space, and the temperature control component 2 in the battery housing exchanges heat with the battery 6.

[0065] The battery pack using the battery box provided in this application can achieve uniform heat exchange between the temperature control component 2 and the battery 6, and the temperature difference between the battery 6 in contact with the beam 101 and the battery 6 not in contact with the beam 101 will not be too large. This ensures the temperature balance of the battery 6 carried in the battery box, thereby ensuring the overall battery pack's stable and safe use and improving the battery pack's service life.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery housing, characterized in that, include: A frame (1), the frame (1) comprising a plurality of beams (101); Temperature control component (2), the temperature control component (2) is disposed on one side of the frame (1); A protrusion (3) is provided on the side of the beam (101) facing the temperature control member (2) and / or on the temperature control member (2) at a position corresponding to the beam (101). The protrusion (3) abuts against the temperature control member (2) and the beam (101) to form a heat insulation gap. A locking member (5) passes through the temperature control member (2), the protrusion (3) and the beam (101) on the side facing the temperature control member (2) to fix the temperature control member (2) to the beam (101).

2. The battery housing according to claim 1, characterized in that, It also includes a heat insulation component (4), which is sleeved on the outer periphery of the protrusion (3) and elastically abuts against the beam (101) and the temperature control component (2).

3. The battery housing according to claim 2, characterized in that, The protrusion (3) has a ring-shaped structure, the heat insulation component (4) is an annular airbag, the inner diameter of the heat insulation component (4) is less than or equal to the outer diameter of the protrusion (3), and the thickness of the heat insulation component (4) is greater than or equal to the thickness of the protrusion (3).

4. The battery housing according to claim 2, characterized in that, The thermal conductivity of the insulation component (4) is ≤0.2w / mk.

5. The battery housing according to claim 1, characterized in that, When both the side of the beam (101) facing the temperature control member (2) and the position on the temperature control member (2) corresponding to the beam (101) are formed with protrusions (3), the protrusions (3) on the beam (101) and the protrusions (3) on the temperature control member (2) are alternately spaced, or the protrusions (3) on the beam (101) are inserted into the protrusions (3) on the temperature control member (2) and abut against each other.

6. The battery housing according to claim 1, characterized in that, The height of the two ends of the beam (101) is less than the height of the middle part of the beam (101), and the height of the protrusions (3) at the two ends of the beam (101) is greater than the height of the protrusions (3) at the middle part of the beam (101), so that the height of the heat insulation gap at the two ends of the beam (101) is greater than the height of the heat insulation gap at the middle part of the beam (101).

7. The battery housing according to claim 1, characterized in that, The protrusion (3) on the beam (101) is integrally formed with the beam (101); The protrusion (3) on the temperature control component (2) is welded to the temperature control component (2).

8. The battery housing according to claim 1, characterized in that, The beam (101) has a first fixing hole (1011) on the side facing the temperature control component (2), and the protrusion (3) on the beam (101) surrounds the first fixing hole (1011) in the circumference. The temperature control component (2) has a second fixing hole (201) at the position corresponding to the beam (101). The protrusion (3) on the temperature control component (2) surrounds the circumference of the second fixing hole (201). The protrusion (3) on the temperature control component (2) is fixed to the second fixing hole (201) by a sealing connection. The sealing connection is embedded in the second fixing hole (201) to simultaneously seal the side of the temperature control component (2) facing the beam (101) and at least part of the inner wall of the second fixing hole (201). The protrusion (3) on the beam (101) can abut against the sealing connection.

9. The battery housing according to claim 8, characterized in that, The locking component (5) includes a threaded sleeve and a bolt. The threaded sleeve passes through the temperature control component (2), the protrusion (3), and the beam (101) on the side facing the temperature control component (2). The bolt enters the threaded sleeve and engages with it, causing one end of the threaded sleeve to expand and deform, abutting against the beam (101).

10. A battery pack, characterized in that, Includes the battery (6) and the battery housing according to any one of claims 1-9; The beam (101) in the battery box forms an installation space, and the battery (6) is arranged in the installation space. The temperature control component (2) in the battery box is used to exchange heat with the battery (6).

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