Battery box and assembly method

Abstract

The present invention relates to the technical field of battery replacement for new energy vehicles, and in particular, to a battery box and an assembly method. The battery box includes a frame assembly and a plurality of power storage assemblies. The frame assembly includes two frame units and a connecting beam, and the connecting beam is arranged on one side of the length direction of the frame unit. The power storage assembly includes a battery cell unit and a temperature control plate unit, and the battery cell unit is arranged on one side of the temperature control plate unit along the height direction of the frame unit. The temperature control plate unit of one power storage assembly and the battery cell unit of another power storage assembly in the direction away from the battery cell unit by the temperature control plate unit are surrounded to form a cooling space. A: B = 0.05~0.1; wherein A is the size of the cooling space along the height direction of the frame unit, and B is the size of the power storage assembly along the height direction of the frame unit. This solves the problem of a high center of gravity of the battery box.

Description

Technical Field

[0001] The present invention relates to the technical field of battery replacement for new energy vehicles, and in particular to a battery box and an assembly method thereof. Background Art

[0002] New energy vehicles are being promoted vigorously due to their environmental protection, fast power response, low noise, and light vibration. New energy vehicles generally use multiple batteries in series or parallel to obtain a specified current and / or voltage to power new energy vehicles. Since multiple batteries are scattered, it is not conducive to fixation and the safety is also poor, so multiple batteries can be combined together to form a battery box, which is convenient for battery fixation and disassembly operations.

[0003] In some specific scenarios, such as heavy trucks and vans, the required power is large due to the heavy load, so the corresponding battery box size is larger. The battery box is usually installed in the area between the front of the vehicle and the car body. In order to avoid occupying too much cargo space of the vehicle while taking into account the flexibility of the vehicle, the distance between the front of the vehicle and the car body is usually limited to a certain range. Therefore, in order to increase the power of the battery box, it is often necessary to increase the height of the battery box, which leads to a higher center of gravity, affecting the stability and braking of the vehicle, especially when cornering at high speed. The higher center of gravity will bring corresponding safety hazards. Summary of the invention

[0004] In order to solve the problem of a high center of gravity of a battery box, the present invention provides a battery box and an assembly method.

[0005] In a first aspect, the present invention provides a battery box, the battery box comprising:

[0006] A frame assembly, the frame assembly comprising two frame units and a connecting beam; one end of the connecting beam is detachably connected to one of the frame units, and the other end is detachably connected to the other frame unit; the connecting beam is arranged on one side of the length direction of the frame unit;

[0007] A plurality of power storage components, wherein the power storage components include a battery cell unit and a temperature control plate unit; the battery cell unit is detachably connected to the temperature control plate unit; the battery cell unit is arranged on one side of the temperature control plate unit along the height direction of the frame unit; one side of the temperature control plate unit is detachably connected to one of the frame units, and the other side is detachably connected to another of the frame units; the space surrounded by the temperature control plate unit of one of the power storage components and the battery cell unit of another of the power storage components in the direction of the temperature control plate unit away from the battery cell unit is a cooling space;

[0008] A: B=0.05~0.1; wherein A is the dimension of the cooling space along the height direction of the frame unit, and B is the dimension of the power storage component along the height direction of the frame unit.

[0009] In some embodiments, the maximum value of A is 20 mm.

[0010] In some embodiments, the frame unit includes a column, a lifting beam, a plurality of supporting beams, and an abutment beam; the lifting beam, the plurality of supporting beams, and the abutment beam are arranged in sequence at intervals along the thickness direction of the lifting beam; the lifting beam, the plurality of supporting beams, and the abutment beam are respectively detachably connected to the column; one end of the connecting beam is detachably connected to the lifting beam of one of the frame units, and the other end is detachably connected to the lifting beam of another of the frame units; one side of the temperature control plate unit is detachably connected to the support beam of one of the frame units, and the other side is detachably connected to the support beam of another of the frame units.

[0011] In some embodiments, the dimension of the support beam along the thickness direction of the lifting beam gradually decreases from the column toward the temperature control plate unit.

[0012] In some embodiments, the battery cell unit includes a plurality of cores and a shell; the core is detachably connected to the temperature control board unit; the shell is detachably connected to the temperature control board unit; the shell is disposed on the outer periphery of the core;

[0013] The temperature control plate unit includes a plate body and a plurality of protrusions; one side of the plate body is detachably connected to the support beam, and the other end is detachably connected to another support beam; the protrusion is fixedly connected to the plate body; a plurality of the protrusions are arranged at intervals; the core body is detachably connected to the plate body; the protrusions are arranged on the peripheral side of the core body.

[0014] In some embodiments, the protrusion is communicated with the plate body; and the core body abuts against the protrusion.

[0015] In some embodiments, the frame unit further includes a reinforcement module; the hoisting beam, the reinforcement module, the plurality of support beams, and the abutment beam are sequentially arranged at intervals; the reinforcement module is detachably connected to the column;

[0016] The battery box also includes a temperature control component; the temperature control component is detachably connected to the reinforcement module; and the temperature control component is in communication with the temperature control plate unit.

[0017] In some embodiments, the reinforcement module includes a first reinforcement beam and a second reinforcement beam; the first reinforcement beam is detachably connected to the column; the first reinforcement beam includes a straight plate-like body; the first reinforcement beam is parallel to the surface of the battery cell unit away from the abutting beam; the second reinforcement beam includes a straight plate-like body; the second reinforcement beam is parallel to the surface of the battery cell unit close to the column; the second reinforcement beam is fixedly connected to the first reinforcement beam away from the battery cell unit; the temperature control component is detachably connected to the side of the first reinforcement beam close to the lifting beam.

[0018] In some embodiments, the battery box further includes a control assembly; the control assembly is disposed in a space surrounded by the support beam and the abutment beam; the control assembly includes a high-voltage box, a low-voltage box, and a plug interface; the high-voltage box is detachably connected to the abutment beam; the low-voltage box is detachably connected to the abutment beam; the plug interface is detachably connected to the abutment beam;

[0019] The high-voltage box is electrically connected to the battery cell unit; the low-voltage box is electrically connected to the battery cell unit; the low-voltage box is electrically connected to the temperature control component; and the plug interface is electrically connected to the battery cell unit.

[0020] In a second aspect, the present invention provides a battery box assembly method, the battery box assembly method comprising:

[0021] Step S11, based on the assembly instruction trigger, the power storage component is positioned;

[0022] Step S12, based on the completion of positioning of the power storage assembly, moving the two frame units;

[0023] Step S13, based on the two frame units moving to the set position, connecting the frame unit and the temperature control plate unit of the power storage assembly;

[0024] Step S14: based on the completion of the connection between the frame unit and the temperature control plate unit, the two frame units are connected via a connecting beam.

[0025] In order to solve the problem of high center of gravity of the battery box, the present invention has the following advantages:

[0026] By setting one side of the temperature control plate unit to be detachably connected to a frame unit and the other side to be detachably connected to another frame unit, the temperature control plate unit can be fixed. By setting the battery cell unit on one side of the temperature control plate unit along the height direction of the frame unit, the battery cell unit can be fixed with the help of the temperature control plate unit, without the need to set up an additional frame structure for fixing the battery cell unit, thus saving the height space of the battery box and reducing the center of gravity height of the battery box.

[0027] By limiting the ratio of the dimension of the cooling space along the height direction of the frame unit to the dimension of the power storage component along the height direction of the frame unit within a set range, the height of the cooling space can be limited within a set range, thereby further saving the height space of the battery box while ensuring the cooling effect, and further reducing the center of gravity height of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a battery box according to an embodiment is shown;

[0029] Figure 2 A front view of a battery box according to an embodiment is shown;

[0030] Figure 3 A cross-sectional view of a battery box according to an embodiment is shown;

[0031] Figure 4 An embodiment of the invention is shown Figure 3 A partial enlarged view of

[0032] Figure 5 A schematic diagram of a power storage assembly according to an embodiment is shown;

[0033] Figure 6 A cross-sectional view of a power storage assembly according to an embodiment is shown;

[0034] Figure 7 A schematic diagram of a battery box assembly method according to an embodiment is shown.

[0035] Figure numerals: 10 frame assembly; 11 frame unit; 111 column; 112 lifting beam; 113 supporting beam; 114 abutting beam; 115 reinforcement module; 1151 first reinforcement beam; 1152 second reinforcement beam; 12 connecting beam; 20 power storage assembly; 21 battery cell unit; 211 core body; 212 shell; 22 temperature control board unit; 221 board body; 222 raised portion; 30 control assembly; 31 high voltage box; 32 low voltage box; 33 plug interface; 40 temperature control assembly. DETAILED DESCRIPTION

[0036] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0037] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0038] In this embodiment, the battery box needs to have a larger amount of power in some specific scenarios, and accordingly the size of the battery box needs to be increased. The battery box can usually be placed in the space between the front of the vehicle and the compartment. In order to avoid occupying the cargo space of the vehicle and to ensure the flexibility of the vehicle's driving, the distance between the front of the vehicle and the compartment is usually restricted. Therefore, the increase in the power of the battery box brings about an increase in the height of the battery box, which results in a higher center of gravity of the battery box, affecting the stability and safety of the vehicle's driving. The battery box contains an independent power storage component 20 for storing electrical energy, and also contains a frame structure for fixing the power storage component 20, which will occupy a certain height space. Therefore, a battery box is proposed to solve the problem of a higher center of gravity of the battery box.

[0039] like Figure 1 , Figure 2As shown, the battery box may include a frame assembly 10 and a plurality of power storage assemblies 20, the power storage assemblies 20 may store and release electric energy, and the frame assembly 10 may be used to fix the power storage assemblies 20 and protect the internal structure of the battery box. The frame assembly 10 may include two frame units 11 and a connecting beam 12. The two frame units 11 may be distributed alternately, and the plurality of power storage assemblies 20 may be located in the area between the two frame units 11, and the two frame units 11 may provide protection for the plurality of power storage assemblies 20. One end of the connecting beam 12 may be detachably connected to one frame unit 11, and the other end may be detachably connected to another frame unit 11. The connecting beam 12 is arranged on one side of the length direction of the frame unit 11, so as to make the frame unit 11 more stable. The length direction of the frame unit 11 is consistent with the length direction of the battery box. The number of connecting beams 12 is not limited and can be flexibly selected according to actual needs. By setting the connecting beam 12, the distance between the two frame units 11 can be kept relatively constant, and the frame unit 11 can be prevented from squeezing the power storage assembly 20 in the area between the two frame units 11, thereby protecting the power storage assembly 20 from damage.

[0040] like Figure 5 As shown, the power storage assembly 20 may include a battery cell unit 21 and a temperature control plate unit 22. The battery cell unit 21 is the part of the power storage assembly 20 that is responsible for storing and releasing electric energy. The temperature control plate unit 22 may be used to keep the temperature of the battery cell unit 21 within a set range to prevent the power storage assembly 20 from losing function or causing danger due to temperature runaway. The battery cell unit 21 may be detachably connected to the temperature control plate unit 22. The battery cell unit 21 is disposed on one side of the temperature control plate unit 22 along the height direction of the frame unit 11, so that the battery cell unit 21 may be fixed by the temperature control plate unit 22. Figure 3 As shown, one side of the temperature control plate unit 22 can be detachably connected to one frame unit 11, and the other side can be detachably connected to another frame unit 11, so that the temperature control plate unit 22 can be fixed by the two frame units 11. Finally, the temperature control plate unit 22 and the battery cell unit 21 can be fixed by the two frame units 11, and there is no need to add an additional structure between the two frame units 11 for fixing the battery cell unit 21 alone, thereby saving the height space of the battery box and reducing the center of gravity height of the battery box. The space surrounded by the temperature control plate unit 22 of one power storage component 20 and the battery cell unit 21 of another power storage component 20 in the direction where the temperature control plate unit 22 is away from the battery cell unit 21 is a cooling space. The cooling space is a structure that does not contain a physical body and can be used as a passage for air to flow through. The temperature control plate unit 22 can exchange heat with the outside world through the cooling space.

[0041] A: B = 0.05~0.1; A is the dimension of the cooling space along the height direction of the frame unit 11, and B is the dimension of the power storage assembly 20 along the height direction of the frame unit 11. By limiting the ratio of the dimension of the cooling space along the height direction of the frame unit 11 to the dimension of the power storage assembly 20 along the height direction of the frame unit 11 within a set range, the height of the cooling space can be limited within a set range, thereby further saving the height space of the battery box while ensuring that the cooling effect of the cooling space is sufficient, and further reducing the height of the center of gravity of the battery box.

[0042] In this embodiment, the maximum value of A is 20 mm, that is, the maximum value of the dimension of the cooling space along the height direction of the frame unit 11 is 20 mm. Increasing the value of A increases the height of the cooling space, and the height of the battery box increases accordingly, and the height of the center of gravity of the battery box rises. Therefore, the value of A can be limited to no more than 20 mm, thereby limiting the height of the battery box. At the same time, if the value of A is too small, the height of the cooling space is reduced, which is not conducive to air circulation and may reduce the heat exchange efficiency between the temperature control plate unit 22 and the outside world.

[0043] In this embodiment, if Figure 1 , Figure 2 As shown, the frame unit 11 may include a column 111, a hoisting beam 112, a plurality of support beams 113, and an abutment beam 114. The column 111 is placed vertically and can be used as a support point to provide support in the vertical direction. The hoisting beam 112, a plurality of support beams 113, and the abutment beam 114 can be arranged in sequence from top to bottom along the thickness direction of the hoisting beam 112 (i.e., the height direction of the frame unit 11). The hoisting beam 112, a plurality of support beams 113, and the abutment beam 114 can be detachably connected to the column 111, respectively. During the process of battery replacement of the vehicle, the battery box can be hoisted by the hoisting beam 112; the support beam 113 can be used to fix the power storage component 20; and the abutment beam 114 can abut against the ground or the vehicle. One end of the connecting beam 12 can be detachably connected to the hoisting beam 112 of one frame unit 11, and the other end can be detachably connected to the hoisting beam 112 of another frame unit 11. By setting the connecting beam 12, the distance between the two frame units 11 can be kept relatively constant, and the frame unit 11 can be prevented from squeezing the power storage assembly 20 in the area between the two frame units 11, thereby protecting the power storage assembly 20 from damage. One side of the temperature control board unit 22 can be detachably connected to the support beam 113 of one frame unit 11, and the other side can be detachably connected to the support beam 113 of another frame unit 11, so that the temperature control board unit 22 can be fixed by the support beam 113. Appropriate space can be reserved between the hoisting beam 112 and the power storage assembly 20 closest to the hoisting beam 112, which is used as the hoisting space of the battery box. Appropriate space can be reserved between the abutting beam 114 and the support beam 113 closest to the abutting beam 114, for placing other components in the battery box.

[0044] In this embodiment, the dimension of the support beam 113 along the thickness direction of the hanging beam 112 can be gradually reduced from the column 111 toward the temperature control plate unit 22. The support beam 113 can be tubular to reduce the weight, and the cross section can be triangular. Figure 4 As shown, the vertical dimension of the support beam 113 gradually decreases from the column 111 toward the temperature control plate unit 22; the horizontal dimension of the support beam 113 gradually decreases from the hoisting beam 112 to the abutting beam 114. This makes the distance between the two support beams 113 at the same height on the two frame units 11 gradually decrease from the hoisting beam 112 to the abutting beam 114. Therefore, when the width of the battery box is limited, that is, the distance between the two frame units 11 is limited, a part of the battery cell unit 21 can enter the space between the two support beams 113 at the same height on the two frame units 11, which can further shorten the height of the cooling space between adjacent power storage components 20, thereby reducing the height of the center of gravity of the battery box.

[0045] In this embodiment, if Figure 6 As shown, the battery cell unit 21 may include a shell 212 and a plurality of cores 211. The core 211 may be used for storing and releasing electric energy, and the shell 212 may be used for protecting the core 211. The core 211 may be detachably connected to the temperature control plate unit 22, so as to release the heat of the core 211 through the temperature control plate unit 22. The shell 212 may be detachably connected to the temperature control plate unit 22, and the shell 212 may be arranged on the outer peripheral side of the core 211, so that the battery cell is surrounded by the shell 212 and the temperature control plate unit 22, and the battery cell is isolated from the external environment to protect the battery cell.

[0046] The temperature control plate unit 22 may include a plate body 221 and a plurality of protrusions 222. Both sides of the plate body 221 may be detachably connected to two support beams 113 at the same height on the two frame units 11. The plate body 221 may be used to fix the temperature control plate unit 22, and may abut against the battery cell unit 21 to support the battery cell unit 21. One end of the protrusion 222 may be fixedly connected to the plate body 221, and the other end may extend in a direction away from the plate body 221. The protrusion 222 may have a certain length to enhance the bending strength of the plate body 221, and at the same time, it may satisfy the heat transfer between the protrusion 222 and the plate body 221, thereby improving the cooling effect of the temperature control plate unit 22. Multiple protrusions 222 may be arranged at intervals in a direction perpendicular to the length direction of the protrusion 222, which may further enhance the strength of the plate body 221 and enhance the heat exchange capacity. One end of the core 211 can be detachably connected to the plate 221, and the other end can extend in a direction away from the plate 221, so that the core 211 can be fixed by the plate 221. The protrusion 222 can be arranged on the peripheral side of the core 211, which can limit the position of the core 211 and take away the heat of the core 211.

[0047] In this embodiment, the protrusion 222 and the plate body 221 may both contain passages for liquid to flow through, for cooling the battery core. The protrusion 222 may be in communication with the plate body 221, so as to facilitate heat transfer between the protrusion 222 and the plate body 221. The core 211 may abut against the protrusion 222, so as to facilitate heat transfer from the core 211 to the protrusion 222, thereby enhancing the cooling effect of the temperature control plate unit 22.

[0048] In this embodiment, if Figure 3 , Figure 4 As shown, the frame unit 11 may further include a reinforcement module 115, which may be used to fix the temperature control assembly 40. The hoisting beam 112, the reinforcement module 115, the plurality of support beams 113, and the abutment beam 114 may be sequentially arranged at intervals. The reinforcement module 115 may be detachably connected to the column 111, so that the temperature control assembly 40 may be fixed to the frame unit 11 through the reinforcement module 115.

[0049] The battery box may further include a temperature control assembly 40, which is detachably connected to the reinforcement module 115, so that the temperature control assembly 40 and the reinforcement module 115 can be fixed. The temperature control assembly 40 can be in communication with the temperature control plate unit 22, so that the temperature of the power storage assembly 20 can be controlled by heat exchange through the pipe connection temperature control plate unit 22.

[0050] In this embodiment, if Figure 4As shown, the reinforcing module 115 may include a first reinforcing beam 1151 and a second reinforcing beam 1152. The first reinforcing beam 1151 may be detachably connected to the column 111, so that the first reinforcing beam 1151 is supported by the column 111. The first reinforcing beam 1151 may include a straight plate-like body, which is convenient for fixing with the temperature control component 40. The first reinforcing beam 1151 is parallel to the surface of the battery cell unit 21 away from the abutting beam 114, and the area between the plane where the surface of the first reinforcing beam 1151 on the side close to the battery cell unit 21 and the plane where the surface of the battery cell unit 21 on the side close to the abutting beam 114 can constitute a cooling space. The second reinforcing beam 1152 may include a straight plate-like body, the second reinforcing beam 1152 may be parallel to the surface of the battery cell unit 21 on the side close to the column 111, and the second reinforcing beam 1152 may be fixedly connected to the first reinforcing beam 1151 on the side away from the battery cell unit 21. The temperature control assembly 40 is detachably connected to the side of the first reinforcing beam 1151 close to the hanging beam 112, so that the temperature control assembly 40 can be fixed by the first reinforcing beam 1151. By setting the first reinforcing beam 1151 and the second reinforcing beam 1152 to be both flat plate-shaped, the second reinforcing beam 1152 is fixedly connected to the side of the first reinforcing beam 1151 away from the battery cell unit 21, and the second reinforcing beam 1152 is detachably connected to the column 111, so that while fixing the temperature control assembly 40, less space is occupied on the side of the first reinforcing beam 1151 away from the hanging beam 112 and the side of the second reinforcing beam 1152 close to the battery cell unit 21. Thereby, the distance between the temperature control assembly 40 and the battery cell unit 21 close to the temperature control assembly 40 is further shortened, the height of the battery box is reduced, and the height of the center of gravity of the battery box is reduced.

[0051] In other embodiments, the second reinforcing beam 1152 may also be detachably connected to the column 111, so that the second reinforcing beam 1152 is supported by the column 111. The cross-sectional length direction of the second reinforcing beam 1152 may be perpendicular to the cross-sectional length direction of the first reinforcing beam 1151, so as to provide support for the first reinforcing beam 1151 and prevent the first reinforcing beam 1151 from being easily bent.

[0052] In this embodiment, if Figure 1 , Figure 2As shown, the battery box may also include a control component 30, which may be used to control the electrical parameters of the battery box. The control component 30 may be arranged in the space surrounded by the support beam 113 and the abutment beam 114, making full use of the space to facilitate reducing the size of the battery box. The control component 30 may include a high-voltage box 31, a low-voltage box 32, and a plug interface 33. Both the high-voltage box 31 and the low-voltage box 32 may be used for the management of the electrical parameters of the battery box, and the plug interface 33 may be used for the charging and discharging of the charging box. The high-voltage box 31 may be detachably connected to the abutment beam 114, the low-voltage box 32 may be detachably connected to the abutment beam 114, and the plug interface 33 may be detachably connected to the abutment beam 114, so that the high-voltage box 31, the low-voltage box 32 and the plug interface 33 may be fixed by the abutment beam 114.

[0053] The high voltage box 31 can be electrically connected to the battery cell 21, and the low voltage box 32 can be electrically connected to the battery cell 21, so that the battery cell 21 can be managed through the high voltage box 31 and the low voltage box 32. The low voltage box 32 can be electrically connected to the temperature control component 40, so as to drive the temperature control component 40 to operate. The plug interface 33 can be electrically connected to the battery cell 21, so that the battery cell 21 can be charged and discharged through the plug interface 33. Both the high voltage box 31 and the low voltage box 32 can be electrically connected to the plug interface 33, and different types of currents can be output through the plug interface 33.

[0054] In this embodiment, a battery box assembly method is applied to the battery box of any of the above embodiments, such as Figure 7 As shown, the battery box assembly method may include:

[0055] Step S11 , based on the assembly instruction trigger, the power storage component 20 can be positioned.

[0056] Step S12: Based on the completion of the positioning of the power storage assembly 20, the two frame units 11 can be moved to the set position. The set position refers to the two frame units 11 being respectively located as follows: Figure 3 The left and right sides of the power storage assembly 20 are shown.

[0057] Step S13, based on the two frame units 11 moving to the set position, the frame unit 11 and the temperature control plate unit 22 of the power storage assembly 20 can be connected, so that the power storage assembly 20 can be fixed to the frame unit 11. At the same time, the position between the two frame units 11 can be fixed by the temperature control plate unit 22.

[0058] In step S14 , based on the completion of the connection between the frame unit 11 and the temperature control plate unit 22 , the two frame units 11 can be connected via the connecting beam 12 , so that the two frame units 11 can be further fixed via the connecting beam 12 to ensure the strength of the frame assembly 10 .

[0059] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present disclosure.

Claims

1. A battery box, characterized in that: The battery box comprises: A frame assembly, the frame assembly comprising two frame units and a connecting beam; one end of the connecting beam is detachably connected to one of the frame units, and the other end is detachably connected to the other frame unit; the connecting beam is arranged on one side of the length direction of the frame unit; A plurality of power storage components, wherein the power storage components include a battery cell unit and a temperature control plate unit; the battery cell unit is detachably connected to the temperature control plate unit; the battery cell unit is arranged on one side of the temperature control plate unit along the height direction of the frame unit; one side of the temperature control plate unit is detachably connected to one of the frame units, and the other side is detachably connected to another of the frame units; the space surrounded by the temperature control plate unit of one of the power storage components and the battery cell unit of another of the power storage components in the direction of the temperature control plate unit away from the battery cell unit is a cooling space; A: B=0.05~0.1; wherein A is the dimension of the cooling space along the height direction of the frame unit, and B is the dimension of the power storage component along the height direction of the frame unit.

2. A battery box according to claim 1, characterized in that: The maximum value of A is 20 mm.

3. A battery box according to claim 1, characterized in that: The frame unit includes a column, a hoisting beam, a plurality of supporting beams, and an abutting beam; the hoisting beam, the plurality of supporting beams, and the abutting beam are arranged in sequence and spaced apart along the thickness direction of the hoisting beam; the hoisting beam, the plurality of supporting beams, and the abutting beam are respectively detachably connected to the column; one end of the connecting beam is detachably connected to the hoisting beam of one frame unit, and the other end is detachably connected to the hoisting beam of another frame unit; one side of the temperature control plate unit is detachably connected to the support beam of one frame unit, and the other side is detachably connected to the support beam of another frame unit.

4. A battery box according to claim 3, characterized in that: The dimension of the support beam along the thickness direction of the hanging beam gradually decreases from the column toward the temperature control plate unit.

5. A battery box according to claim 3, characterized in that: The battery cell unit comprises a plurality of core bodies and a shell; the core bodies are detachably connected to the temperature control plate unit; the shell is detachably connected to the temperature control plate unit; the shell is arranged on the outer peripheral side of the core body; The temperature control plate unit includes a plate body and a plurality of protrusions; one side of the plate body is detachably connected to the support beam, and the other end is detachably connected to another support beam; the protrusion is fixedly connected to the plate body; a plurality of the protrusions are arranged at intervals; the core body is detachably connected to the plate body; the protrusions are arranged on the peripheral side of the core body.

6. A battery box according to claim 5, characterized in that: The protrusion is communicated with the plate body; the core body is in contact with the protrusion.

7. A battery box according to claim 3, characterized in that: The frame unit further includes a reinforcement module; the hoisting beam, the reinforcement module, the plurality of support beams, and the abutment beam are sequentially arranged at intervals; the reinforcement module is detachably connected to the column; The battery box also includes a temperature control component; the temperature control component is detachably connected to the reinforcement module; and the temperature control component is in communication with the temperature control plate unit.

8. A battery box according to claim 7, characterized in that: The reinforcement module includes a first reinforcement beam and a second reinforcement beam; the first reinforcement beam is detachably connected to the column; the first reinforcement beam includes a straight plate-like body; the first reinforcement beam is parallel to the surface of the battery cell unit away from the abutting beam; the second reinforcement beam includes a straight plate-like body; the second reinforcement beam is parallel to the surface of the battery cell unit close to the column; the second reinforcement beam is fixedly connected to the first reinforcement beam away from the battery cell unit; the temperature control component is detachably connected to the side of the first reinforcement beam close to the lifting beam.

9. A battery box according to claim 7, characterized in that: The battery box further includes a control assembly; the control assembly is arranged in a space surrounded by the support beam and the abutment beam; the control assembly includes a high-voltage box, a low-voltage box, and a plug interface; the high-voltage box is detachably connected to the abutment beam; the low-voltage box is detachably connected to the abutment beam; the plug interface is detachably connected to the abutment beam; The high-voltage box is electrically connected to the battery cell unit; the low-voltage box is electrically connected to the battery cell unit; the low-voltage box is electrically connected to the temperature control component; and the plug interface is electrically connected to the battery cell unit.

10. A battery box assembly method, characterized in that: The battery box assembly method is applied to a battery box as described in any one of claims 1 to 9, and the battery box assembly method comprises: Step S11, based on the assembly instruction trigger, the power storage component is positioned; Step S12, based on the completion of positioning of the power storage assembly, moving the two frame units; Step S13, based on the two frame units moving to the set position, connecting the frame unit and the temperature control plate unit of the power storage assembly; Step S14: based on the completion of the connection between the frame unit and the temperature control plate unit, the two frame units are connected via a connecting beam.

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