Battery tray, battery pack and electric equipment

Abstract

The embodiment of the utility model provides a battery tray, a battery pack and electric equipment, the battery tray comprises a tray and an anti-explosion valve, the tray comprises a mounting panel and a first positioning part, the mounting panel is provided with a mounting hole, the first positioning part is connected with the mounting panel, and the first positioning part is located on the peripheral side of the mounting hole; the anti-explosion valve comprises a valve body, the valve body comprises a body, a mounting part and a second positioning part, the mounting part and the second positioning part are both connected with the body, the mounting part is clamped with the mounting hole, and the first positioning part is in positioning fit with the second positioning part. The waterproof sealing performance of the anti-explosion valve in the battery tray is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, and in particular to a battery tray, a battery pack and a power consumption device. BACKGROUND

[0002] An electric vehicle, an energy storage system or other device requiring power supply can adopt a battery pack as a power source, and the battery pack mainly includes a battery tray and a plurality of battery packs. The battery tray is used to accommodate and support the battery packs.

[0003] In the related art, the battery tray can include a tray and a rupture disc. The tray forms an accommodation cavity for installing the battery packs. The rupture disc is installed on the tray. When the battery packs are normally working, the rupture disc is in sealing connection with the tray to prevent water from entering the interior of the tray. When the battery packs are in thermal runaway or the like, the pressure in the tray is relatively large, and the air pressure can burst the rupture disc to release the pressure. The rupture disc is in clamping connection with the tray. However, this installation manner cannot completely limit the freedom of the rupture disc, and thus the rupture disc is prone to rotating relative to the tray when the battery tray is subjected to vibration, thereby causing the rupture disc to fail in sealing. UTILITY MODEL CONTENT

[0004] Therefore, the embodiments of the present application provide a battery tray, a battery pack and a power consumption device. The first positioning part and the second positioning part are matched to solve the problem that the rupture disc is prone to rotating relative to the mounting panel, and thus the waterproof sealing performance of the rupture disc is improved.

[0005] In a first aspect, the present application provides a battery tray, comprising:

[0006] The tray includes a mounting panel and a first positioning part. The mounting panel has a mounting hole. The first positioning part is connected with the mounting panel, and is located on the outer circumferential side of the mounting hole.

[0007] The rupture disc includes a valve body. The valve body includes a body, a mounting part and a second positioning part. The mounting part and the second positioning part are both connected with the body. The mounting part is in clamping connection with the mounting hole. The first positioning part is in positioning cooperation with the second positioning part.

[0008] In a possible implementation manner, the first positioning part includes a positioning pin, and the second positioning part includes a positioning hole. The positioning pin is inserted into the positioning hole.

[0009] In a possible implementation manner, a gap is formed between the outer side wall of the positioning pin and the inner side wall of the positioning hole.

[0010] In a possible implementation manner, the gap is greater than or equal to 0.2 mm and less than or equal to 0.5 mm.

[0011] In a possible implementation manner, one end of the positioning pin towards the positioning hole is chamfered.

[0012] In a possible implementation, the positioning pin is connected to the outer side of the mounting panel.

[0013] In a possible implementation, the side of the body facing the mounting panel has a sealing surface, the sealing surface is in abutment with the side of the mounting panel facing the positioning pin hole, and the sealing surface protrudes from the side of the second positioning portion facing the mounting panel.

[0014] In a possible implementation, the tray further includes a plurality of ribs, the ribs are connected to the mounting panel, and at least one rib is arranged on the outer circumferential side of the mounting hole.

[0015] In a possible implementation, the explosion-proof valve further includes a cover and a sealing member, the sealing member is arranged between the body and the mounting panel to seal the gap between the body and the mounting panel, the cover is connected to the body, and the body is provided with a waterproof and breathable film.

[0016] In a second aspect, the application provides a battery pack, including a battery cell and the battery tray provided in the first aspect.

[0017] In a second aspect, the application provides a power consumption device, including a power consumption apparatus and the battery pack provided in the second aspect, and the battery pack is used to supply power to the power consumption apparatus.

[0018] The embodiments of the application provide a battery tray, a battery pack and a power consumption device. The battery tray includes a tray and an explosion-proof valve. The tray includes a mounting panel and a first positioning portion. The mounting panel includes a mounting hole. The explosion-proof valve includes a body, a mounting portion and a second positioning portion. The mounting hole and the mounting portion are connected through clamping, so as to limit the six degrees of freedom of the body except the axial rotation around the mounting hole. The first positioning portion and the second positioning portion are matched, so as to limit the axial rotation of the body around the mounting hole. In this way, the six degrees of freedom of the body are completely limited through the matching of the mounting portion and the mounting hole and the matching of the first positioning portion and the second positioning portion, and the movement of the explosion-proof valve relative to the tray is prevented when the battery tray is vibrated, so that the waterproof sealing performance of the explosion-proof valve before explosion is improved.

[0019] In addition to the technical problems solved by the embodiments of the application described above, the technical features constituting the technical solutions and the beneficial effects brought by the technical features, the other technical problems solved by the battery tray, the battery pack and the power consumption device provided by the application, the other technical features included in the technical solutions and the beneficial effects brought by the technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application.

[0021] Figure 1 A structural schematic diagram of a battery tray provided by an embodiment of the application;

[0022] Figure 2 A structural schematic diagram of a battery tray provided by an embodiment of the application;

[0023] Figure 3 A structural schematic diagram of a battery tray provided by an embodiment of the application; Figure 1 A sectional view along A-A of the battery tray;

[0024] Figure 4 A structural schematic diagram of a battery tray provided by an embodiment of the application;

[0025] Figure 5 A structural schematic diagram of a battery tray provided by an embodiment of the application.

[0026] Reference signs:

[0027] 100 - tray; 110 - mounting panel; 111 - mounting hole; 120 - first positioning portion; 130 - blocking rib;

[0028] 200 - explosion-proof valve; 210 - valve body; 211 - body; 2111 - sealing surface; 212 - mounting portion; 213 - second positioning portion; 220 - cover; 230 - sealing member.

[0029] The specific embodiments of the application have been shown and described in the above drawings, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the application in any way, but to illustrate the concept of the application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the application more clear, the technical solutions in the embodiments of the application will be described in more detail below with reference to the drawings of the preferred embodiments of the application. In the drawings, the same or similar reference signs represent the same or similar components or components having the same or similar functions throughout. The described embodiments are part of the embodiments of the application, not all of the embodiments. The embodiments described below by reference to the drawings are exemplary and are intended to explain the application, and cannot be understood as limiting the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application. The embodiments of the application will be described in detail below with reference to the drawings.

[0031] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or indirect connection through an intermediate medium, or internal communication of two elements, or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0032] In the description of the application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the drawings, and are only used to facilitate the description of the application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the application.

[0033] The terms "first", "second", "third" (if any) in the specification and claims of the application and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein.

[0034] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or display including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or displays.

[0035] In the related art, the battery tray can include a tray and a rupture disc, the tray forms a containing cavity for mounting the battery pack, and the rupture disc is mounted on the tray. When the battery pack is working normally, the rupture disc is in sealing connection with the tray to prevent water from entering the inside of the tray. When the battery pack appears thermal runaway or the like, the pressure in the tray is relatively large, and the air pressure can blow off the rupture disc to release the pressure. The rupture disc is connected with the tray by clamping connection. However, this mounting method cannot completely limit the freedom of the rupture disc, and thus the rupture disc is easy to rotate relative to the tray when the battery tray is subjected to vibration, thereby causing the rupture disc to fail to seal.

[0036] Therefore, the battery tray, the battery pack and the electric equipment provided in the embodiments of the present application are provided. The tray is provided with a mounting hole and a first positioning part. The explosion-proof valve is provided with a mounting part and a second positioning part. Then, the six degrees of freedom of the explosion-proof valve are completely limited by cooperation of the mounting part with the mounting hole and cooperation of the first positioning part with the second positioning part. Then, the rotation of the explosion-proof valve relative to the mounting panel is prevented. Thus, the waterproof sealing property of the explosion-proof valve is ensured.

[0037] The specific implementation of the battery tray, the battery pack and the electric equipment provided in the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0038] The embodiments of the present application provide an electric equipment. The electric equipment comprises an electric device and a battery pack. The battery pack is used to supply power for the electric device.

[0039] For example, the electric equipment can be a vehicle. The electric device can be an electric motor. The battery pack can supply power for the electric motor. Then, the vehicle is driven by the electric motor. The vehicle can be a pure electric vehicle, a range-extended electric vehicle, a hybrid vehicle, etc. The vehicle can also be any vehicle with a battery pack.

[0040] On the basis of the above-mentioned embodiments, the embodiments of the present application further provide a battery pack. The battery pack can comprise a battery cell and a battery tray. The battery cell is arranged in the battery tray.

[0041] It can be understood that a single battery cell can only provide a small voltage and a short endurance time. For an electric device requiring a large voltage, multiple battery cells need to be integrated. Therefore, the multiple battery cells can be connected in series. The battery tray is used to accommodate and carry the battery cells. Then, the multiple battery cells are assembled to form a battery pack with a large voltage and a long endurance time.

[0042] When the battery pack is installed on the electric equipment, the battery tray can be used as an intermediate connecting component. For example, when the electric equipment is a vehicle, the vehicle can comprise a chassis, an electric motor and a battery pack. The electric motor and the battery pack can be installed on the chassis. The battery pack can supply power for the electric motor. The battery pack can be welded to the chassis through the battery tray. Then, the battery pack is fixed to the chassis.

[0043] Referring to Figures 1 to 5 On the basis of the above-mentioned embodiments, the embodiments of the present application further provide a battery tray. The battery tray comprises a tray 100 and an explosion-proof valve 200. The tray 100 comprises a mounting panel 110 and a first positioning part 120. The mounting panel 110 is provided with a mounting hole 111. The first positioning part 120 is connected with the mounting panel 110. The first positioning part 120 is located on the outer circumferential side of the mounting hole 111.

[0044] The explosion-proof valve 200 comprises a valve body 210, the valve body 210 comprises a body 211, a mounting portion 212 and a second positioning portion 213, the mounting portion 212 and the second positioning portion 213 are connected with the body 211, the mounting portion 212 is clamped with the mounting hole 111, and the first positioning portion 120 is positioned and matched with the second positioning portion 213.

[0045] In the embodiment, the tray 100 is used for accommodating and supporting the battery cell, the explosion-proof valve 200 is used for exploding when the pressure in the tray 100 is large, thereby reducing the pressure in the tray 100, and when the pressure in the tray 100 is normal, the explosion-proof valve 200 is in sealed connection with the tray 100, so as to prevent the liquid outside from entering the tray 100, thereby preventing the liquid from affecting the normal work of the battery cell.

[0046] In addition, in order to keep the internal and external air pressure of the tray 100 balanced, the explosion-proof valve 200 can allow the gas to pass. That is, when the pressure in the tray 100 does not reach the preset explosion pressure of the explosion-proof valve 200, the gas and water vapor in the tray 100 are discharged outside the tray 100 through the explosion-proof valve 200, so as to prevent the pressure in the tray 100 from accumulating, and when the pressure in the tray 100 reaches the preset explosion pressure of the explosion-proof valve 200, the explosion-proof valve 200 is opened, thereby rapidly releasing the gas in the tray 100.

[0047] Specifically, the tray 100 can comprise a mounting panel 110, the mounting panel 110 comprises a mounting hole 111, the explosion-proof valve 200 can comprise a valve body 210, the valve body 210 can comprise a body 211 and a mounting portion 212 connected to the body 211, so that after the mounting portion 212 is clamped and connected with the mounting hole 111, the five degrees of freedom of the body 211 except the axial rotation around the mounting hole 111 can be limited. The mounting portion 212 can comprise a plurality of buckles, and the buckles are buckled with the mounting hole 111.

[0048] The tray 100 can further comprise a first positioning portion 120, and the valve body 210 can further comprise a second positioning portion 213, the second positioning portion 213 can limit the axial rotation of the body 211 around the mounting hole 111 in cooperation with the first positioning portion 120, so that when the valve body 210 is assembled with the tray 100, the six degrees of freedom of the body 211 can be completely limited by clamping and connecting the mounting portion 212 with the mounting hole 111 and cooperating the first positioning portion 120 with the second positioning portion 213.

[0049] For example, as shown in FIG. 1, Figure 4 the clamping and connecting of the mounting portion 212 with the mounting hole 111 can limit the movement of the body 211 along the X direction, the movement along the Y direction, the movement along the Z direction, the rotation around the Y direction and the rotation around the Z direction, and the cooperation of the first positioning portion 120 with the second positioning portion 213 can limit the rotation of the body 211 around the X direction.

[0050] In this way, when the battery tray is subjected to vibration, for example, when the battery tray is installed in a vehicle, the tray 100 will be subjected to vibration as the vehicle travels, since the six degrees of freedom of the explosion-proof valve 200 can be completely limited, the explosion-proof valve 200 will not move relative to the tray 100, and the waterproof sealing between the explosion-proof valve 200 and the tray 100 can be ensured, thereby preventing the sealing failure of the explosion-proof valve 200 before detonation.

[0051] One of the first positioning part 120 and the second positioning part 213 can be a positioning pin, and the other can be a positioning pin hole matched with the positioning pin. For example, the first positioning part 120 is a positioning pin hole, and the second positioning part 213 is a positioning pin, which is matched with the positioning pin hole, thereby limiting the axial rotation of the body 211 around the mounting hole 111. Alternatively, the first positioning part 120 is a positioning pin, and the second positioning part 213 is a positioning pin hole, which is matched with the positioning pin hole, thereby limiting the axial rotation of the body 211 around the mounting hole 111.

[0052] When the valve body 210 is installed to the tray 100, the clamping of the mounting part 212 and the mounting hole 111 and the insertion of the positioning pin and the positioning pin hole can be performed synchronously, or the clamping of the mounting part 212 and the mounting hole 111 can be performed first, and then the insertion of the positioning pin and the positioning pin hole is performed, or the insertion of the positioning pin and the positioning pin hole can be performed first, and then the clamping of the mounting part 212 and the mounting hole 111 is performed.

[0053] The battery tray provided by the embodiment of the present application comprises the tray 100 and the explosion-proof valve 200. The tray 100 comprises the mounting panel 110 and the first positioning part 120. The mounting panel 110 comprises the mounting hole 111. The explosion-proof valve 200 comprises the body 211, the mounting part 212 and the second positioning part 213. The mounting hole 111 and the mounting part 212 are arranged to be clamped and connected, thereby limiting the five degrees of freedom of the body 211 except the axial rotation of the body 211 around the mounting hole 111. The first positioning part 120 and the second positioning part 213 are arranged to be matched, thereby limiting the axial rotation of the body 211 around the mounting hole 111. In this way, the six degrees of freedom of the body 211 can be completely limited by the matching of the mounting part 212 and the mounting hole 111 and the matching of the first positioning part 120 and the second positioning part 213, thereby preventing the movement of the explosion-proof valve 200 relative to the tray 100 when the battery tray is subjected to vibration, and improving the waterproof sealing of the explosion-proof valve 200 before detonation.

[0054] In a possible implementation, the first positioning part 120 comprises a positioning pin, and the second positioning part 213 comprises a positioning pin hole, and the positioning pin is inserted into the positioning pin hole.

[0055] Therefore, compared with the case that the positioning pin hole is arranged on the first positioning portion 120 and the positioning pin is arranged on the second positioning portion 213, or the case that the positioning pin is arranged on the first positioning portion 120 and the positioning pin hole is arranged on the second positioning portion 213, the installation of the installation portion 212 and the installation hole 111 and the insertion of the positioning pin and the positioning pin hole can be performed synchronously, which facilitates the assembly of the valve body 210 and the tray 100, and the positioning pin and the positioning pin hole do not need to be sealed, so that the separation of the valve body 210 and the tray 100 is not affected when the explosion-proof valve 200 is opened.

[0056] When the positioning pin is inserted into the positioning pin hole, the rotation of the body 211 around the axis of the installation hole 111 is limited, and when the installation portion 212 is clamped in the installation hole 111, the other five degrees of freedom of the body 211 are limited, and thus the six degrees of freedom of the body 211 are completely limited.

[0057] For example, the positioning pin can be integrally formed with the installation panel 110, or the positioning pin can be welded to the installation panel 110. When the positioning pin is inserted into the positioning pin hole, the installation portion 212 can be clamped into the installation hole 111.

[0058] In some embodiments, a gap is formed between the outer side wall of the positioning pin and the inner side wall of the positioning pin hole.

[0059] It can be understood that the positioning pin cooperates with the positioning pin hole to limit the rotation of the body 211 around the axis of the installation hole 111. If the outer side wall of the positioning pin completely matches the inner side wall of the positioning pin hole, additional friction between the positioning pin and the positioning pin hole needs to be overcome when the explosion-proof valve 200 is detonated.

[0060] Therefore, in the present embodiment, the positioning pin and the positioning pin hole are gap-fitted. When the battery pack is in thermal runaway, the gas only needs to push the installation portion 212 to make the installation portion 212 and the installation hole 111 disengage, without the need to overcome the additional friction between the positioning pin and the positioning pin hole, so that the explosion-proof valve 200 can be smoothly opened when the preset detonation pressure is reached, thereby ensuring that the preset detonation pressure of the explosion-proof valve 200 does not change. In addition, the gap-fitting of the positioning pin and the positioning pin hole can also help the positioning pin to be smoothly inserted into the positioning pin hole, thereby reducing the assembly difficulty of the explosion-proof valve 200.

[0061] In a possible implementation, the gap is greater than or equal to 0.2 mm and less than or equal to 0.5 mm. It should be noted that when the gap is controlled to be between 0.2 mm and 0.5 mm, a certain gap can be ensured between the positioning pin and the positioning pin hole, so that the friction between the two is avoided to affect the opening of the explosion-proof valve 200, and the gap is not too large, which can effectively prevent the valve body 210 from rotating around the axis of the installation hole 111.

[0062] In some embodiments, the positioning pin has a chamfered end facing the positioning pin hole. In this way, since the positioning pin hole is arranged on the valve body 210 and the positioning pin is arranged on the tray 100, when the valve body 210 is mounted on the tray 100 during assembly, the chamfered end of the positioning pin can facilitate the smooth insertion of the positioning pin into the positioning pin hole.

[0063] In a possible implementation, the positioning pin is connected to the outer side of the mounting panel 110. It should be understood that the inner space of the tray 100 is used for mounting the battery cell, and the outer side of the mounting panel 110 is the outer side of the tray 100. By arranging the positioning pin on the outer side of the mounting panel 110, the positioning pin can avoid occupying the space inside the tray 100,

[0064] In addition, the body 211 is also arranged on the outer side of the mounting panel 110, and the mounting portion 212 is inserted into the mounting hole 111 from the outer side of the mounting panel 110 and is clamped with the mounting hole 111. The positioning pin hole and the body 211 are both located on the outer side of the mounting panel 110, which is conducive to the assembly of the positioning pin and the positioning pin hole and facilitates the assembly of the mounting portion 212 and the mounting hole 111.

[0065] Referring to Figure 3 In some embodiments, the body 211 has a sealing surface 2111 facing the mounting panel 110. The sealing surface 2111 abuts against the side of the mounting panel 110 facing the positioning pin hole, and the sealing surface 2111 protrudes from the side of the second positioning portion 213 facing the mounting panel 110.

[0066] It can be understood that if the side of the second positioning portion 213 facing the mounting panel 110 protrudes from the sealing surface 2111, the sealing surface 2111 cannot abut against the mounting panel 110, which can cause the explosion-proof valve 200 to fail to be assembled smoothly, thereby affecting the waterproof sealing performance of the explosion-proof valve 200.

[0067] Therefore, in the present embodiment, the sealing surface 2111 protrudes from the side of the second positioning portion 213 facing the mounting panel 110. In this way, after the second positioning portion 213 is assembled with the first positioning portion 120, the body 211 can continue to move towards the mounting panel 110 until the sealing surface 2111 abuts against the side of the mounting panel 110 facing the positioning pin hole, thereby facilitating the assembly of the valve body 210, and improving the waterproof sealing performance of the explosion-proof valve 200.

[0068] Referring to Figures 1 to 3 In a possible implementation, the tray 100 further includes a plurality of blocking ribs 130. The blocking ribs 130 are connected to the mounting panel 110, and at least one blocking rib 130 is arranged on the outer circumferential side of the mounting hole 111.

[0069] For example, the blocking rib 130 can be arranged at the outer periphery of the mounting hole 111, and can prevent foreign matters such as mud and stones from contacting the explosion-proof valve 200, thereby preventing the explosion-proof valve 200 from being damaged in advance. In addition, the blocking rib 130 can also enhance the extrusion deformation resistance of the mounting panel 110, thereby improving the structural strength of the tray 100.

[0070] Referring to Figures 2 to 4 As shown in some embodiments, the explosion-proof valve 200 further comprises a cover 220 and a sealing member 230. The sealing member 230 is arranged between the body 211 and the mounting panel 110 to seal the gap between the body 211 and the mounting panel 110. The cover 220 is connected to the side of the body 211 away from the mounting panel 110. The body 211 is provided with a waterproof and breathable film.

[0071] That is, the cover 220 and the sealing member 230 are both connected to the body 211. After the body 211 is assembled to the tray 100 through the mounting portion 212 and the second positioning portion, the explosion-proof valve 200 can be integrally mounted to the tray 100. The sealing member 230 can seal the gap between the body 211 and the mounting panel 110 to improve the waterproof sealing performance of the explosion-proof valve 200. The body 211 is provided with a waterproof and breathable film to improve the breathability of the explosion-proof valve 200, thereby maintaining the pressure balance when the battery pack does not occur thermal runaway. The cover 220 can protect the waterproof and breathable film.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery tray, characterized by, The application relates to a tray (100) and an explosion-proof valve (200). The tray (100) comprises a mounting panel (110) and a first positioning part (120), the mounting panel (110) is provided with a mounting hole (111), and the first positioning part (120) is connected with the mounting panel (110) and located at the outer periphery of the mounting hole (111). The explosion-proof valve (200) comprises a valve main body (210), the valve main body (210) comprises a body (211), a mounting part (212) and a second positioning part (213), the mounting part (212) and the second positioning part (213) are connected with the body (211), the mounting part (212) is clamped with the mounting hole (111), and the first positioning part (120) is positioned and matched with the second positioning part (213).

2. The battery tray of claim 1, wherein, The first positioning part (120) comprises a positioning pin, and the second positioning part (213) comprises a positioning pin hole, the positioning pin is inserted into the positioning pin hole.

3. The battery tray of claim 2, wherein, The outer side wall of the positioning pin and the inner side wall of the positioning pin hole have a gap.

4. The battery tray of claim 3, wherein, The gap is greater than or equal to 0.2 mm and less than or equal to 0.5 mm.

5. The battery tray of any one of claims 2-4, wherein, One end of the positioning pin towards the positioning pin hole is chamfered.

6. The battery tray of any one of claims 2-4, wherein, The positioning pin is connected to the outer side of the mounting panel (110).

7. The battery tray of any of claims 2-4, wherein, The body (211) is provided with a sealing surface (2111) on one side towards the mounting panel (110), the sealing surface (2111) is abutted with one side of the mounting panel (110) towards the body (211), and the sealing surface (2111) is protruded from one side of the second positioning part (213) towards the mounting panel (110).

8. The battery tray of any one of claims 1-4, wherein, The tray (100) further comprises a plurality of blocking ribs (130), the blocking ribs (130) are connected with the mounting panel (110), and at least one blocking rib (130) is arranged at the outer periphery of the mounting hole (111).

9. The battery tray of any one of claims 1-4, wherein, The explosion-proof valve (200) further comprises a cover body (220) and a sealing element (230), the sealing element (230) is arranged between the body (211) and the mounting panel (110) to seal the gap between the body (211) and the mounting panel (110), the cover body (220) is connected to one side of the body (211) away from the mounting panel (110), and the body (211) is provided with a waterproof and breathable film.

10. A battery pack, characterized by, The application further relates to a battery pack comprising a battery tray and a battery cell, the battery cell is arranged in the battery tray.

11. An electrical device, characterized by The application further relates to a battery pack comprising a battery tray and a battery cell, the battery pack is used for supplying power to the electric device.

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