CN219717099U - Tray and battery box - Google Patents

Abstract

The utility model provides a tray and a battery box, which are used for installing a battery cell and comprise the following components: the top of the supporting plate is used for installing the battery cell, the bottom of the supporting plate is provided with a groove which is positioned below the battery cell and used for containing cooling medium, and the supporting plate is also provided with an input nozzle and an output nozzle which are communicated with the groove; and the cover plate is covered on the groove. Through installing the battery cell at the top of layer board, set up the recess in the bottom of layer board, hold cooling medium in the recess, and locate the recess through the apron lid, and communicate the recess through input mouth and output mouth, make the tray can also provide the heat dissipation function for the battery cell when bearing the battery cell, thereby need not to set up the liquid cooling board in the battery box, the internals and the manufacturing cost of battery box have been saved, and because the tray only comprises layer board and apron, need not to need the curb plate like the box, thereby make the tray select the mode alright casting of using low pressure die casting, and further practiced thrift manufacturing cost.

Description

Tray and battery box

Technical Field

The utility model relates to the technical field of batteries, in particular to a tray and a battery box.

Background

In the related art, the main components of the battery box include a box body, a box cover, a module, a liquid cooling plate, a BDU (Battery Disconnect Unit, a battery pack breaking unit) and the like. The box is generally a sheet metal box, a section box and a die-casting box, wherein the die-casting box also needs large-tonnage die-casting equipment. Therefore, in the related art, there is a technical problem that the internal parts of the battery case are complicated and the case body is manufactured to be high.

Disclosure of Invention

The embodiment of the utility model provides a tray and a battery box, which can improve the technical problems of complex internal parts of the battery box and high manufacturing cost of the box body.

In a first aspect, embodiments of the present utility model provide a tray for mounting a battery cell, including:

the top of the supporting plate is used for installing the battery cell, the bottom of the supporting plate is provided with a groove which is positioned below the battery cell and used for containing cooling medium, and the supporting plate is also provided with an input nozzle and an output nozzle which are communicated with the groove;

and the cover plate is covered on the groove.

In an embodiment, the supporting plate includes a plurality of first cooling ridges and at least one second cooling ridge, the plurality of first cooling ridges and at least one second cooling ridge are arranged in the groove to define a cooling flow channel for the cooling medium to circulate, and the cover plate includes at least one positioning groove, and each second cooling ridge is clamped into the corresponding positioning groove.

In an embodiment, each of the second cooling ridges is located above a corresponding one of the first cooling ridges.

In an embodiment, the groove includes a base portion and two communicating portions extending from sides of the base portion, each communicating portion extends toward a direction approaching the other communicating portion, and the input nozzle and the output nozzle are respectively communicated with the two communicating portions and are adjacently disposed.

In an embodiment, one of the second cooling ridges includes a first portion surrounding both of the communicating portions and a second portion extending bending from one end of the first portion, the second portion being located within the base portion.

In an embodiment, the top of the pallet is further provided with:

the power supply management unit is positioned at one side of the input nozzle and the output nozzle;

the mounting panel is provided with a first mounting hole and a second mounting hole positioned at one side of the first mounting hole, the first mounting hole is used for mounting and communicating the cooling joint of the input nozzle and the output nozzle, and the second mounting hole is used for mounting and electrically connecting with the electric joint of the power management unit

Wherein, the power management unit, the input mouth and the output mouth are all located between the electric core and the installation panel.

In an embodiment, an end plate is further provided on the top of the supporting plate, and the end plate is located on a side of the input nozzle and the output nozzle, which is far away from the mounting panel, and is used for mounting the battery cell.

In an embodiment, the bottom of layer board still is equipped with first mounting groove, be equipped with in the first mounting groove and be used for fixing the linking bridge of layer board, the linking bridge is kept away from the one end of first mounting groove is equipped with the fixed orifices.

In a second aspect, an embodiment of the present utility model provides a battery box, including a case cover, a battery cell, and a tray according to any one of the foregoing embodiments, where the case cover is covered on the tray and cooperates with the tray to form a mounting cavity, and the battery cell is assembled in the mounting cavity.

In one embodiment, the battery box further comprises a sealing strip, wherein the sealing strip is located between the box cover and the tray and matches with the shape of the contact surface of the box cover and the tray.

The embodiment of the utility model has the beneficial effects that:

in the embodiment of the utility model, the battery core is arranged at the top of the supporting plate, the groove is arranged at the bottom of the supporting plate, the cooling medium is contained in the groove, the groove is covered by the cover plate, and the groove is communicated with the input nozzle and the output nozzle, so that the tray can provide a heat dissipation function for the battery core while bearing the battery core, a liquid cooling plate is not required to be arranged in the battery box, the internal parts of the battery box and the manufacturing cost are saved, and the tray is only composed of the supporting plate and the cover plate, and a side plate is not required as a box body, so that the tray can be cast in a low-pressure die casting mode, the process difficulty is simplified, and the manufacturing cost is further saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a tray according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a tray according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a tray according to an embodiment of the present utility model;

FIG. 4 is an exploded schematic view of a portion of the structure of the pallet of FIG. 3;

FIG. 5 is a schematic view of a tray according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a tray according to an embodiment of the present utility model;

fig. 7 is a schematic structural view of a battery box according to an embodiment of the present utility model;

fig. 8 is an exploded view of a battery case according to an embodiment of the present utility model.

In the figure: 100. a tray; 101. a supporting plate; 1011. a first fixing seat; 1012. the second fixing seat; 102. a cover plate; 1021. a positioning groove; 103. a first cooling ridge; 104. a second cooling ridge; 105. a base portion; 106. a communication section; 107. a power management unit; 108. installing a panel; 1081. a first mounting hole; 1082. a second mounting hole; 109. cooling the joint; 110. a low voltage outlet; 111. a high voltage outlet; 112. an explosion-proof valve; 113. a battery cell; 114. an end plate; 1141. a second mounting groove; 1151. an input nozzle; 1152. an output nozzle; 116. a connecting bracket; 1161. a first mounting groove; 117. a cooling tube; 118. an integrated busbar; 119. a case cover; 120. a sealing strip; 121. a fixing bolt; 122. a supporting part.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.

The embodiment of the utility model provides a tray and a battery box, which can improve the technical problems of complex internal parts of the battery box and high manufacturing cost of the box body.

As shown in fig. 1, in a first aspect, an embodiment of the present utility model provides a tray 100, where the tray 100 is used to mount a battery cell 113, that is, the battery cell 113 in the battery box is fixedly mounted on the tray 100.

The tray 100 includes a pallet 101 and a cover plate 102. The top of the supporting plate 101 is used for installing the battery cells 113, and a groove is formed in the bottom of the supporting plate 101. A cooling medium is arranged in the groove to dissipate heat for the battery cells 113 arranged on the top of the supporting plate 101. It will be appreciated that, in order to improve the heat dissipation effect, the position of the cooling medium should be opposite to the position of the battery cell 113, so that when it is required to provide the battery cell 113 with the best heat dissipation effect, the groove is disposed below the battery cell 113, so that the facing area of the cooling medium and the battery cell 113 is maximized, thereby providing the battery cell 113 with the best heat dissipation effect.

To facilitate heat exchange with the outside, the pallet 101 is further provided with an inlet nozzle 1151 and an outlet nozzle 1152, one ends of the inlet nozzle 1151 and the outlet nozzle 1152 are in communication with the recess, and the other ends of the inlet nozzle 1151 and the outlet nozzle 1152 are connected to the outside, such as a cooling device capable of conveying the cooling medium. When the battery cell 113 starts to operate, the cooling medium exchanges heat with the outside through the input nozzle 1151 and the output nozzle 1152 to take away heat emitted from the battery cell 113.

The cover plate 102 is covered on the groove, that is, the cover plate 102 is located on the groove and connected with the supporting plate 101, and the area of the cover plate 102 is larger than or equal to that of the groove, so that the cover plate 102 can seal the groove to prevent the cooling medium in the groove from leaking, that is, the cover plate 102 and the groove together form a cooling cavity, and the cooling medium is contained in the cooling cavity.

In this embodiment, through installing the electric core 113 at the top of layer board 101, set up the recess in the bottom of layer board 101, hold cooling medium in the recess, and cover the recess through apron 102, and pass through input mouth 1151 and output mouth 1152 intercommunication recess, make tray 100 can also provide the heat dissipation function for electric core 113 when bearing electric core 113, thereby need not to set up the liquid cooling board in the battery box, the internals of battery box and manufacturing cost have been saved, and because tray 100 only comprises layer board 101 and apron 102, need not to need the curb plate like the box, thereby make tray 100 select the mode alright casting of low pressure die casting, the technological degree of difficulty has been simplified, and further manufacturing cost has been practiced thrift.

In some embodiments, the cooling medium includes a gas, such as helium and carbon dioxide, and the like, and the cooling medium also includes a liquid, such as water, heavy water, hydrocarbon, liquid metal (sodium, potassium), low-melting molten salt, and the like, and of course, the cooling medium of the present utility model is not limited to the above-listed gas or liquid, and is within the scope of the present utility model as long as it has a heat dissipation function.

In order to better disclose the inventive concept of the present utility model, the following specific structure of the exemplary tray 100 is provided in some embodiments, but it should be understood that this is not a limitation of the present utility model and only the specific structure defined in the following embodiments may be adopted, and the solutions substantially identical to the inventive concept of the present utility model are also within the scope of the present utility model.

As shown in fig. 2, in one embodiment, a tray 100 is provided, where the tray 100 is used to mount the battery cells 113, that is, the battery cells 113 in the battery box are fixedly mounted on the tray 100.

The tray 100 includes a pallet 101 and a cover plate 102. The battery cell 113 is installed in the top of layer board 101, the top of layer board 101 still is equipped with input mouth 1151 and output mouth 1152, the bottom of layer board 101 is equipped with the recess, be equipped with cooling medium in the recess to for installing the battery cell 113 at the top of layer board 101 dispels the heat, in order to improve the radiating effect, the recess is located the below of battery cell 113. One ends of the input nozzle 1151 and the output nozzle 1152 are in communication with the recess, and the other ends of the input nozzle 1151 and the output nozzle 1152 are in communication with the outside, such as a cooling device that can convey the cooling medium. When the battery cell 113 starts to operate, the cooling medium exchanges heat with the outside through the input nozzle 1151 and the output nozzle 1152 to take away heat emitted from the battery cell 113. The cover plate 102 is covered on the groove, and the area of the cover plate 102 is larger than or equal to the area of the groove, so that the cover plate 102 can seal the groove to prevent the cooling medium in the groove from leaking, that is, the cover plate 102 and the groove together form a cooling cavity, and the cooling medium is accommodated in the cooling cavity.

Unlike the above embodiment, in this embodiment, the pallet 101 is further provided with a plurality of first cooling ridges 103. A plurality of the first cooling ridges 103 are arranged in the grooves to define cooling flow passages through which the cooling medium flows.

As shown in fig. 2, a plurality of the first cooling ridges 103 are sequentially arranged in the groove along the first direction, and are fixedly connected with the bottom of the groove, and the space between two adjacent first cooling ridges 103 and the space between the end of the first cooling ridge 103 and the side wall of the groove form the cooling flow channel through which the cooling medium flows. It will be appreciated that in order to allow sufficient circulation of the cooling medium within the recess, a portion of one end of the first cooling ridge 103 may be connected to a side wall of the recess, thereby further defining a flow path for the cooling medium. As shown in the figure, the first cooling ridge 103 (a), the first cooling ridge 103 (b), and the first cooling ridge 103 (c).

In this embodiment, by arranging the groove at the bottom of the supporting plate 101 and arranging the plurality of first cooling ridges 103 in the groove, the plurality of first cooling ridges 103 form cooling channels in the groove, so that the cooling medium contained in the groove can sufficiently circulate in the groove, thereby providing a better heat dissipation function for the battery cell 113 while saving the manufacturing cost of the internal parts of the battery box, simplifying the process difficulty and saving the manufacturing cost.

In some embodiments, the first cooling ridge 103 is used to support the cover plate 102 such that a cavity is formed between the cover plate 102 and the groove that contains the cooling medium.

In some embodiments, to improve the stability of the cover 102, a supporting portion 122 (as shown in fig. 1) is further provided on the supporting plate 101, where the supporting portion 122 is located in the groove and disposed along the edge of the groove, and the supporting portion 122 is used to support the cover 102. It will be appreciated that the cover plate 102 may be supported by both the first cooling ridge 103 and the support 122, or by either of them alone. When the cover plate 102 is supported by the support 122 and the cover plate 102 together, the first cooling ridge 103 and the support 122 have the same height. In some embodiments, the height of both the support 122 and the first cooling ridge 103 is less than the height of the side walls of the groove.

In some embodiments, the first cooling ridge 103 is integrally formed with the pallet 101.

As shown in fig. 1 and 2, in one embodiment, a tray 100 is provided, where the tray 100 is used to mount the battery cells 113, that is, the battery cells 113 in the battery box are fixedly mounted on the tray 100.

The tray 100 includes a pallet 101 and a cover plate 102. The battery cell 113 is installed in the top of layer board 101, the top of layer board 101 still is equipped with input mouth 1151 and output mouth 1152, the bottom of layer board 101 is equipped with the recess, be equipped with cooling medium in the recess to for installing the battery cell 113 at the top of layer board 101 dispels the heat, in order to improve the radiating effect, the recess is located the below of battery cell 113. One end of the input nozzle 1151 and the output nozzle 1152 communicates with the groove, and the other end of the input nozzle 1151 and the output nozzle 1152 communicates with an external cooling device. The cover plate 102 is covered on the groove, and the area of the cover plate 102 is larger than or equal to the area of the groove, so that the cover plate 102 can seal the groove to prevent the cooling medium in the groove from leaking, that is, the cover plate 102 and the groove together form a cooling cavity, and the cooling medium is accommodated in the cooling cavity.

Unlike the above embodiment, in this embodiment, the pallet 101 is provided with at least one second cooling ridge 104 in addition to the first cooling ridges 103. A plurality of the first cooling ridges 103 and at least one of the second cooling ridges 104 are arranged in the groove to define a cooling flow passage through which the cooling medium flows, and the second cooling ridges 104 are used to position the cover plate 102.

The plurality of first cooling ridges 103 are sequentially arranged in the groove along the first direction and are fixedly connected with the bottom of the groove, and the space between two adjacent first cooling ridges 103 and the space between the end part of the first cooling ridge 103 and the side wall of the groove form the cooling flow channel for the cooling medium to circulate. It will be appreciated that in order to allow sufficient circulation of the cooling medium within the recess, a portion of one end of the first cooling ridge 103 may be connected to a side wall of the recess, thereby further defining a flow path for the cooling medium. As illustrated in the figures, the first cooling ridge 103 (a), the first cooling ridge 103 (b), and the first cooling ridge 103 (c). And the second cooling ridge 104 is provided on each of the first cooling ridge 103 (a), the first cooling ridge 103 (b), and the first cooling ridge 103 (d).

Three positioning grooves 1021 are formed in the cover plate 102, the positions of the three positioning grooves 1021 correspond to the positions of the first cooling ridge 103 (a), the first cooling ridge 103 (b) and the first cooling ridge 103 (d), and three second cooling ridges 104 located on the first cooling ridge 103 (a), the first cooling ridge 103 (b) and the first cooling ridge 103 (d) are clamped in the positioning grooves 1021. It will be appreciated that the positioning slots 1021 and the design of the second cooling ridge 104 can function to position and facilitate installation when the cover plate 102 is installed.

In some embodiments, to ensure the sealing performance of the cover plate 102 to the groove, the second cooling ridge 104 has the same shape and size as the positioning groove 1021.

In this embodiment, by disposing the first cooling ridge 103 and the second cooling ridge 104 in the groove, disposing the second cooling ridge 104 on the first cooling ridge 103, and disposing the positioning groove 1021 on the cover plate 102, the cover plate 102 can be positioned when the cover plate 102 is mounted, thereby achieving the effect of facilitating the mounting.

As shown in fig. 1, in some embodiments, the groove includes a base portion 105 and two communicating portions 106 extending from sides of the base portion 105, each communicating portion 106 extends toward a direction approaching the other communicating portion 106, and the input nozzle 1151 and the output nozzle 1152 respectively communicate with and are disposed adjacent to the two communicating portions 106.

The two communicating portions 106 are defined by the first cooling ridge 103 (a) together with the side walls of the groove. One end of the first cooling ridge 103 (a) is connected with the side wall of the groove, and the first cooling ridge 103 (a) is located between the input nozzle 1151 and the output nozzle 1152, and the first cooling ridge 103 (a) and the side wall of the groove together define two communicating portions 106. It will be appreciated that by this arrangement, a larger liquid cooling chamber (base portion 105) can be ensured, while the inlet nozzle 1151 and outlet nozzle 1152 are ensured to be disposed adjacent to each other, facilitating subsequent connection to an external cooling device.

In some embodiments, the second cooling ridge 104 located on the first cooling ridge 103 (a) includes a first portion surrounding two of the communication portions 106 and a second portion extending bending from one end of the first portion, the second portion being located within the base portion 105.

As shown in fig. 3, 4, 5, 6 and 8, in an embodiment, the top of the pallet 101 is further provided with a power management unit 107, a mounting panel 108 and an end plate 114. The top of the supporting plate 101 is provided with a plurality of second fixing bases 1012 and third mounting grooves 1083, the power management unit 107 is fixed on the second fixing bases 1012, and the mounting panel 108 is fixed on the third mounting grooves 1083. Wherein the power management unit 107 is located at one side of the input nozzle 1151 and the output nozzle 1152 and is used for energy management of the battery cells 113, such as the power management unit 107 includes a BDU (Battery Disconnect Unit, battery pack disconnection unit). The mounting panel 108 is provided with a first mounting hole 1081 and a second mounting hole 1082 located at one side of the first mounting hole 1081, wherein the first mounting hole 1081 is used for mounting a cooling joint 109 which communicates with the input nozzle 1151 and the output nozzle 1152, the cooling joint 109 can be connected with the input nozzle 1151 and the output nozzle 1152 through a cooling pipe 117, and the second mounting hole 1082 is used for mounting an electrical joint electrically connected to the power management unit 107, such as a high-voltage socket 111, a low-voltage socket 110, an explosion-proof valve 112, and the like.

The supporting plate 101 is further provided with a second mounting groove 1141, the end plate 114 is fixed in the second mounting groove 1141, and the end plate 114 is located at a side of the input nozzle 1151 and the output nozzle 1152 away from the mounting panel 108, and is used for mounting the battery cell 113, and the power management unit 107, the input nozzle 1151 and the output nozzle 1152 are all located between the battery cell 113 and the mounting panel 108. It can be appreciated that, by fixing the end plate 114 on the supporting plate 101 in advance, when the plurality of electric cells 113 are installed, the end plate 114 can be used as a fixing surface to stack the electric cells 113 in turn, after stacking all the electric cells 113, one end plate 114 is placed at the other end of the plurality of electric cells 113 opposite to the cover plate 102, the fixing of the plurality of electric cells 113 can be completed after the end plate 114 is fixed with the supporting plate 101, and the end plate 114 can be fixedly connected with a plurality of first fixing seats 1011 arranged on the supporting plate 101. In some embodiments, a side plate may be disposed on opposite sides of the plurality of cells 113 where the end plate 114 is not disposed, so as to further protect and fix the plurality of cells 113. In some embodiments, an integrated busbar 118 is further disposed on the electrical core, and the integrated busbar is used for electrically connecting between the electrical cores 113.

In an embodiment, a first mounting groove 1161 is formed in the bottom of the supporting plate 101, a connection bracket 116 for fixing the supporting plate 101 is formed in the first mounting groove 1161, and a fixing hole is formed in one end, away from the first mounting groove 1161, of the connection bracket 116. In some embodiments, the first mounting groove 1161 is in a "mountain" shape, and the end portion of the connecting bracket 116 connected with the first mounting groove 1161 is in a shape adapted to the end portion of the connecting bracket, and it can be understood that by this arrangement, the connecting bracket 116 can be more easily mounted and is more stable after being connected.

An embodiment of the present utility model provides a battery box. The battery compartment includes a compartment cover 119, battery cells 113, and tray 100 as in any of the above embodiments. The case cover 119 is covered on the tray 100 and cooperates with the tray 100 to form a mounting cavity, and the battery cell 113 module is disposed in the mounting cavity.

In some embodiments, a plurality of fixing holes are formed at edges where the cover 119 and the tray 101 contact each other, and the cover 119 and the tray 101 are connected by the fixing holes and the fixing bolts 121.

In some embodiments, the battery box further includes a sealing strip 120, where the sealing strip 120 is located between the box cover 119 and the tray 100, and matches the shape of the contact surface between the box cover 119 and the tray 100. It will be appreciated that a plurality of openings may be provided in the sealing strip 120 to allow the fixing bolts 121 to pass therethrough.

In some embodiments, the cross section of the mounting panel 108 is trapezoidal, and a trapezoidal groove matched with the mounting panel 108 is provided on a side wall of the cover 119 located on one side of the mounting panel 108, and the side wall seals the mounting cavity after being connected with the mounting panel 108.

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims (10)

1. A tray for mounting a battery cell, comprising:

the battery cell (113) is arranged at the top of the supporting plate (101), a groove which is arranged below the battery cell (113) and used for containing cooling medium is formed in the bottom of the supporting plate (101), and an input nozzle (1151) and an output nozzle (1152) which are communicated with the groove are further formed in the supporting plate (101);

and the cover plate (102) is covered on the groove.

2. The tray according to claim 1, wherein the tray (100) further comprises a plurality of first cooling ridges (103) and at least one second cooling ridge (104), the plurality of first cooling ridges (103) and at least one second cooling ridge (104) being arranged in the groove to define a cooling flow path for the cooling medium to circulate, the cover plate (102) comprising at least one positioning groove (1021), each second cooling ridge (104) being snapped into a corresponding positioning groove (1021).

3. The tray according to claim 2, wherein each of the second cooling ridges (104) is located above a corresponding one of the first cooling ridges (103).

4. The tray according to claim 2, wherein the recess includes a base portion (105) and two communicating portions (106) extending from side edges of the base portion (105), each communicating portion (106) extending toward a direction approaching the other communicating portion (106), and the input nozzle (1151) and the output nozzle (1152) communicate with the two communicating portions (106) respectively and are disposed adjacently.

5. The tray according to claim 4, wherein one of the second cooling ridges (104) comprises a first portion surrounding both of the communication portions (106) and a second portion extending bending-wise from one end of the first portion, the second portion being located within the base portion (105).

6. The pallet according to claim 4, characterized in that the top of the pallet (101) is further provided with:

a power management unit (107) located at one side of the input nozzle (1151) and the output nozzle (1152);

a mounting panel (108), wherein the mounting panel (108) is provided with a first mounting hole (1081) and a second mounting hole (1082) positioned at one side of the first mounting hole (1081), the first mounting hole (1081) is used for mounting a cooling joint (109) which is communicated with the input nozzle (1151) and the output nozzle (1152), and the second mounting hole (1082) is used for mounting an electrical joint which is electrically connected with the power management unit (107);

wherein the power management unit (107), the input nozzle (1151) and the output nozzle (1152) are all located between the battery cell (113) and the mounting panel (108).

7. The tray according to claim 6, characterized in that the top of the supporting plate (101) is further provided with an end plate (114), which end plate (114) is located at the side of the inlet nozzle (1151) and the outlet nozzle (1152) remote from the mounting panel (108) and is used for mounting the battery cells (113).

8. The tray according to any one of claims 1 to 7, wherein a first mounting groove (1161) is further formed in the bottom of the supporting plate (101), a connecting bracket (116) for fixing the supporting plate (101) is disposed in the first mounting groove (1161), and a fixing hole is formed in one end, away from the first mounting groove (1161), of the connecting bracket (116).

9. A battery box, characterized by comprising a box cover (119), an electric core (113) and the tray (100) as claimed in any one of claims 1-8, wherein the box cover (119) is covered on the tray (100) and is matched with the tray (100) to form a mounting cavity, and the electric core (113) is arranged in the mounting cavity.

10. The battery box according to claim 9, further comprising a sealing strip (120), wherein the sealing strip (120) is located between the cover (119) and the tray (100) and matches the shape of the contact surface of the cover (119) and the tray (100).