Protective cover, power supply and air conditioning equipment

Abstract

The utility model provides a protection cover, a power supply and air conditioning equipment, the protection cover comprises a first cover shell and a second cover shell, the first cover shell is connected with a shell, a buffer space is defined by the first cover shell and the shell, the buffer space communicates with the external environment, and the first cover shell is configured to reduce the flow of water entering the buffer space from the external environment; the second cover shell is arranged on the first cover shell, a protection space is formed between the second cover shell and the shell, the protection space is constructed to contain the pressure release valve, and the second cover shell is provided with a communication opening. Under the condition that the shell is impacted by water flow such as rainwater, the first housing can reduce the water flow entering the buffer space from the external environment, and the second housing prevents the water flow entering the buffer space from entering the protection space and counteracts the impact force of the water flow, so that the water flow entering the protection space through the communication port is further reduced, and the service life of the protection space is prolonged. Even if a small amount of water flow enters the protection space through the communication port, the pressure release valve cannot be damaged due to impact on the pressure release valve, and therefore the reliability of the pressure release valve is improved.

Description

Technical Field

[0001] This application relates to the technical field of power supply, and in particular to a protective cover, power supply, and air conditioning equipment. Background Technology

[0002] To enhance power supply safety, power supplies typically incorporate pressure relief and explosion-proof features. In related technologies, a power supply usually includes a housing, battery cell assemblies, and a pressure relief valve. The battery cell assemblies are housed inside the housing, and the pressure relief valve is located within the housing. During operation, the internal temperature of the housing may rise, causing gas expansion. The pressure relief valve releases this gas and pressure, preventing the power supply from exploding.

[0003] However, the pressure relief valve in the above technology is exposed on the outside of the housing. When it encounters water flow impacts such as rain, a large water flow impact can easily cause the pressure relief valve to fail, and its reliability needs to be improved. Utility Model Content

[0004] In view of the above, it is necessary to provide a protective cover, power supply and air conditioning equipment that can improve waterproof performance and the reliability of the pressure relief valve.

[0005] The first aspect of this application provides a protective cover for use in a power supply. The power supply includes a housing and a pressure relief valve. The pressure relief valve is located in the housing and is used to release pressure when gas expands inside the housing. The protective cover is connected to the housing and includes a first cover and a second cover. The first cover is connected to the housing and forms a buffer space with the housing. The buffer space is in communication with the external environment. The first cover is configured to reduce the flow rate of water entering the buffer space from the external environment. The second cover is located in the first cover and forms a protective space with the housing. The protective space is configured to accommodate the pressure relief valve. The second cover has a connecting port that connects the protective space and the buffer space. The second cover is configured to counteract the impact force of water flowing into the buffer space.

[0006] In some embodiments, the second housing includes a connecting shell and a surrounding bone. One side of the connecting shell is connected to the first housing, and the other side is connected to the surrounding bone. The surrounding bone is arranged in a ring shape. The connecting shell, the inner side of the surrounding bone, and the housing enclose a protective space. A buffer space is formed between the outer side of the surrounding bone, the first housing, and the housing. A communication opening is provided in the surrounding bone.

[0007] In some embodiments, the housing has an annular frame, the pressure relief valve is located inside the frame, and the frame ribs are inserted into the frame to enclose and form a protective space.

[0008] In some embodiments, a slot is provided at one end of the rib near the frame, the slot extending through the inner and outer sides of the rib, and the slot is at least partially exposed in the frame to form a communication opening.

[0009] In some embodiments, the first cover includes a closed shell and a breathable shell, the closed shell is connected with the second cover, the breathable shell is connected to the periphery of the closed shell and connected with the shell body, the closed shell, the breathable shell and the shell body form a buffer space, and the breathable shell is provided with a plurality of breathable holes in communication with the buffer space.

[0010] In some embodiments, the projection of the communication port and the breathable hole are staggered in the vertical direction of the first cover.

[0011] In some embodiments, the first cover is inclined from top to bottom towards the shell body.

[0012] In some embodiments, one side of the first cover towards the shell body is provided with a positioning block matched with the shell body.

[0013] The second aspect of the present application provides a power supply, including a shell body, an electric core assembly, a pressure relief valve and a protective cover provided in the first aspect, the electric core assembly is arranged in the shell body, the pressure relief valve is embedded in the shell body, and the protective cover is arranged outside the shell body.

[0014] In some embodiments, the electric core assembly has an explosion-proof valve, and the area of the communication port is not less than 3 times the opening area of the explosion-proof valve.

[0015] The third aspect of the present application provides an air conditioning equipment, including an air conditioning host and a power supply provided in the second aspect, the air conditioning host is fixed to the power supply, and the power supply is electrically connected with the air conditioning host.

[0016] Through the protective cover, the power supply and the air conditioning equipment provided in the present application, in the case of gas expansion in the shell body, the gas in the shell body enters the protection space through the pressure relief valve, and then enters the buffer space through the communication port, and is discharged to the external environment, realizing the gas discharge and pressure relief. In the case of water flow impact such as rainwater on the shell body, the first cover can reduce the water flow from the external environment into the buffer space, the second cover and the shell body form a protection space, the second cover blocks the water flow entering the buffer space from entering the protection space, and offsets the impact force of the water flow, further reducing the water flow entering the protection space through the communication port. Even if a small amount of water flow enters the protection space through the communication port, it will not cause impact on the pressure relief valve to damage the pressure relief valve, thereby improving the reliability of the pressure relief valve and protecting the waterproof performance of the pressure relief valve, which is more suitable for use in outdoor environment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structural schematic diagram of the power supply provided in an embodiment of the present application is shown.

[0018] Figure 2 The structural schematic diagram of the air conditioning equipment provided in an embodiment of the present application is shown.

[0019] Figure 3An exploded view of the power supply provided by an embodiment of the present application.

[0020] Figure 4 An exploded view of the shell, explosion-proof valve and protective cover provided by an embodiment of the present application.

[0021] Figure 5 Provided is Figure 4 A local enlarged view at A in the figure.

[0022] Figure 6 A structural schematic view of the explosion-proof valve provided by an embodiment of the present application.

[0023] Figure 7 A structural schematic view of the protective cover provided by an embodiment of the present application from a first perspective.

[0024] Figure 8 A schematic view of the cooperation between the protective cover and the shell provided by an embodiment of the present application.

[0025] Figure 9 A structural schematic view of the protective cover provided by an embodiment of the present application from a second perspective.

[0026] Figure 10 A planar layout schematic view of the protective cover provided by an embodiment of the present application.

[0027] Figure 11 A planar layout schematic view of the protective cover provided by another embodiment of the present application.

[0028] Main element symbol explanation

[0029] 1, first cover; 11, buffer space; 12, closed shell; 13, air-permeable shell; 131, air-permeable hole; 132, mounting hole; 133, positioning block; 2, second cover; 21, protection space; 22, communication port; 23, connecting shell; 24, surrounding bone; 241, slot; 3, first outer shell; 4, second outer shell; 41, accommodating groove; 42, fixing hole; 43, pressure relief hole; 44, convex edge; 45, positioning port; 46, accommodating cavity; 47, surrounding frame; 48, threaded hole; 10, protective cover; 20, shell; 30, pressure relief valve; 301, fixing column; 40, cell assembly; 100, power supply; 200, air conditioner main machine; 1000, air conditioning equipment. DETAILED DESCRIPTION

[0030] In the description of the embodiments of the present application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified. The direction description "horizontal", "vertical", "upper", "lower" and the like used in the present application are all based on the direction of the product in the use state as the reference, and the specific position can be changed according to the placement angle of the product, which is not limited in the present application.

[0031] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a centrally arranged element between them. When an element is considered to be "arranged on" another element, it can be directly arranged on the other element or there can be a centrally arranged element between them.

[0032] In addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of the drawings are intended to cover non-exclusive inclusion.

[0034] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0035] In the related art, the power supply usually includes a shell, a battery core assembly and a pressure relief valve, and the battery core assembly is arranged in the interior of the shell. In the working process of the power supply, the interior of the shell can be heated to cause the gas to expand, at which time the pressure relief valve can be vented to prevent the power supply from exploding.

[0036] Common pressure relief valves include metal pressure relief valves, silica gel pressure relief valves, etc. The metal pressure relief valve has a high cost, and needs to be externally arranged on the outside of the shell to form a protruding structure, which affects the appearance of the power supply.

[0037] The silica gel pressure relief valve has a low cost, but is thin and can be easily damaged by water flow impact in the case of rain and the like. The reliability needs to be improved, and it is not suitable for use in outdoor environments.

[0038] Therefore, the embodiments of the present application provide a protective cover, a power supply and an air conditioning device, which have the characteristics of improving waterproof performance and reducing production cost.

[0039] Figure 1 The structural diagram of the power supply provided by an embodiment of the present application is shown. Figure 2 The structural diagram of the air conditioning device provided by an embodiment of the present application is shown.

[0040] As shown in Figure 1 and Figure 2 The embodiments of the present application first provide a protective cover 10, which can be applied to a power supply 100. The power supply 100 is a portable charging and discharging device, which can store electrical energy and provide stored electrical energy to other devices. In the examples of the present application, the protective cover 10 can be applied to portable power equipment, such as air conditioning equipment 1000, etc.

[0041] Figure 3 The exploded view of the power supply provided by an embodiment of the present application is shown. Figure 4 The exploded view of the shell, pressure relief valve and protective cover provided by an embodiment of the present application is shown.

[0042] Please refer to Figure 3 and Figure 4 In the examples of the present application, the power supply 100 includes a protective cover 10, a shell 20, a pressure relief valve 30 and a battery assembly 40. The battery assembly 40 is arranged in the shell 20, the pressure relief valve 30 is embedded in the shell 20, and the protective cover 10 is arranged on the outside of the shell 20.

[0043] Specifically, the pressure relief valve 30 is a silica gel pressure relief valve 30, which is used to release gas when gas expansion occurs in the shell 20. The protective cover 10 is used to protect the pressure relief valve 30 and reduce the water flow impact of the external environment on the pressure relief valve 30.

[0044] In some embodiments, the outside of the shell 20 is provided with a containing groove 41, the pressure relief valve 30 is arranged in the containing groove 41, and the protective cover 10 is arranged in the slot of the containing groove 41 and shields the containing groove 41.

[0045] Exemplarily, the shell 20 comprises a first shell 3 and a second shell 4 which are fixedly connected. A receiving cavity 46 is formed between the first shell 3 and the second shell 4, and the battery cell assembly 40 is arranged in the receiving cavity 46.

[0046] Exemplarily, the receiving groove 41 is formed by inwardly recessing a side wall of the second shell 4, and the receiving groove 41 forms a notch on the outer side of the second shell 4. The depth direction of the receiving groove 41 is parallel to the horizontal direction.

[0047] Figure 5 For Figure 4 The local enlarged view at A in FIG. 6.

[0048] Please refer to Figure 5 Exemplarily, the groove bottom of the receiving groove 41 is provided with a fixing hole 42 and a plurality of pressure relief holes 43, and the fixing hole 42 and the plurality of pressure relief holes 43 are in communication with the receiving cavity 46. The fixing hole 42 is located in the middle of the receiving groove 41, and the plurality of pressure relief holes 43 are distributed in a circumferential interval around the fixing hole 42.

[0049] Figure 6 The structural schematic diagram of the explosion-proof valve provided by an embodiment of the present application.

[0050] Please refer to Figure 6 Exemplarily, the pressure relief valve 30 has a fixing column 301 which is clamped and fixed with the fixing hole 42, so that the pressure relief valve 30 is embedded and fixed in the second shell 4.

[0051] Under normal circumstances, the pressure relief valve 30 covers and blocks each pressure relief hole 43. In the case of internal temperature rise of the shell 20 leading to gas expansion, the gas at the pressure relief hole 43 promotes the elastic deformation of the pressure relief valve 30, so that the pressure relief hole 43 is partially exposed to the pressure relief valve 30, and at this time the gas in the shell 20 can be discharged to the outside through the pressure relief hole 43.

[0052] Figure 7 The structural schematic diagram of the protective cover provided by an embodiment of the present application from a first perspective. Figure 8 The schematic diagram of the cooperation relationship between the protective cover and the shell provided by an embodiment of the present application.

[0053] Please refer to Figure 7 and Figure 8 In the present embodiment, the protective cover 10 comprises a first cover shell 1 and a second cover shell 2. The first cover shell 1 is connected with the shell 20 and forms a buffer space 11 together with the shell 20. The buffer space 11 is in communication with the external environment, and the first cover shell 1 is configured to reduce the water flow from the external environment into the buffer space 11. The external environment refers to the environment outside the buffer space 11.

[0054] The second cover 2 is arranged on the first cover 1 and forms a protection space 21 with the shell 20, and the protection space 21 is configured to accommodate the pressure relief valve 30. The second cover 2 is provided with a communication port 22 that communicates the protection space 21 with the buffer space 11, and the second cover 2 is configured to offset the impact force of the water flow entering the buffer space 11.

[0055] In the case that the temperature inside the shell 20 rises to cause the gas to expand, the pressure relief valve 30 can be opened, the gas inside the shell 20 enters the protection space 21 through the pressure relief valve 30, and then enters the buffer space 11 through the communication port 22, and is then discharged to the outside environment, thereby achieving pressure relief by gas discharge.

[0056] In the case that the shell 20 is impacted by a water flow such as rain, the first cover 1 can reduce the water flow entering the buffer space 11 from the outside environment, and the second cover 2 forms the protection space 21 with the shell 20. The second cover 2 blocks the water flow entering the buffer space 11 from entering the protection space 21, and offsets the impact force of the water flow, further reducing the water flow entering the protection space 21 through the communication port 22. Even if a small amount of water flow enters the protection space 21 through the communication port 22, it will not cause the pressure relief valve 30 to be damaged due to impact, thereby improving the reliability of the pressure relief valve 30 and ensuring the waterproof performance of the pressure relief valve 30, which is more suitable for use in outdoor environments.

[0057] On the other hand, in the embodiments of the present application, a silica gel pressure relief valve 30 is used as the pressure relief valve 30, which can reduce material costs and improve production efficiency compared to a metal pressure relief valve 30.

[0058] In some embodiments, the first cover 1 is arranged to gradually incline towards the inside of the shell 20 from top to bottom. Specifically, the first cover 1 is arranged to gradually incline towards the inside of the shell 20 from top to bottom, and the second cover 2 is arranged to extend along the depth direction of the accommodating groove 41, so that an included angle is formed between the first cover 1 and the second cover 2.

[0059] For example, the cross-sectional area of the second housing 4 in the horizontal direction gradually decreases downward, and the second housing 4 forms a shape that is wide at the top and narrow at the bottom, so that the side wall of the second housing 4 is arranged to be inclined. The inclination of the first cover 1 is consistent with the inclination of the second housing 4, and the side of the first cover 1 away from the pressure relief valve 30 is flush with the outer side of the second housing 4.

[0060] In this way, the part of the second housing 4 above the protective cover 10 is more protruding than the part of the second housing 4 below the protective cover 10 to form a rain blocking structure, which reduces the water flow from the upper part of the second housing 4 to the protective cover 10, and further reduces the water flow into the buffer space 11, thereby improving the waterproof performance.

[0061] In some embodiments, the first cover 1 comprises a closed shell 12 and a gas-permeable shell 13, the closed shell 12 is connected with the second cover 2. The gas-permeable shell 13 is connected to the outside of the closed shell 12 and connected with the shell body 20. The closed shell 12, the gas-permeable shell 13 and the shell body 20 enclose the buffer space 11.

[0062] For example, the closed shell 12 is located in the middle of the gas-permeable shell 13, and the closed shell 12 is opposite to the pressure relief valve 30 along the thickness direction of the closed shell 12, and the outer edge profile of the gas-permeable shell 13 is matched with the slot profile of the accommodating groove 41, so that the gas-permeable shell 13 can be embedded in the slot of the accommodating groove 41.

[0063] In this way, the closed shell 12 and the inner side of the second cover 2 form the protection space 21 in the middle space of the accommodating groove 41, and the gas-permeable shell 13 and the outer side of the second cover 2 form the buffer space 11 in the peripheral space of the accommodating groove 41, so as to facilitate the flow and diffusion of the gas in the protection space 21 to the buffer space 11 when the pressure is released.

[0064] It can be understood that, in the examples of the present application, the circular area of the protection cover 10 opposite to the pressure relief valve 30 in the middle forms the closed shell 12, and the other part of the protection cover 10 forms the gas-permeable shell 13, and in other embodiments, the positions or shapes of the closed shell 12 and the gas-permeable shell 13 can also be configured according to the position or shape of the pressure relief valve 30, which is not limited in the present application.

[0065] In some embodiments, the closed shell 12 and the gas-permeable shell 13 are integrally formed. For example, the closed shell 12 and the gas-permeable shell 13 are integrally injection molded. In this way, the production process can be simplified, the material cost can be reduced, and the production efficiency can be improved.

[0066] In some embodiments, the gas-permeable shell 13 is provided with a plurality of gas-permeable holes 131, the gas-permeable holes 131 are in communication with the buffer space 11, and the gas in the buffer space 11 can be discharged to the outside environment through the gas-permeable holes 131. In the examples of the present application, the diameter of the gas-permeable hole 131 is 1.5 mm, and in other embodiments, the diameter of the gas-permeable hole 131 can be adjusted according to actual needs.

[0067] It can be understood that, by providing the gas-permeable holes 131 in the gas-permeable shell 13 to allow the gas to pass through, and not providing the gas-permeable holes 131 in the closed shell 12 to form a closed structure to prevent water from passing through, the water flow into the protection space 21 from the outside environment can be reduced while meeting the gas flow requirement, and the pressure relief requirement and the waterproof performance requirement can be met.

[0068] In some embodiments, the inner side of the slot of the accommodating groove 41 is provided with an embedding groove 44. The embedding groove 44 is used for embedding and installing the gas-permeable shell 13, and limiting and supporting the gas-permeable shell 13.

[0069] The air-permeable shell 13 is provided with mounting holes 132, and the mounting holes 132 are multiple and are distributed along the circumference of the air-permeable shell 13. The mounting holes 132 are used for the fixing member to pass through, and the air-permeable shell 13 is fixed to the shell 20 through the fixing member.

[0070] For example, the fixing member is a fixing screw. The accommodating groove 41 is provided with a connecting column, and the connecting column is provided with a threaded hole 48 at one end of the opening of the accommodating groove 41. The fixing screw passes through the mounting hole 132 and is threadedly connected to the threaded hole 48, so that the air-permeable shell 13 is fixed to the shell 20.

[0071] Figure 9 The protective cover provided by an embodiment of the present application is shown in a second view.

[0072] Please refer to Figure 9 In some embodiments, one side of the first cover 1 facing the shell 20 is provided with a positioning block 133, and the positioning block 133 is positioned in cooperation with the shell 20. For example, the positioning block 133 is located at one end of the air-permeable shell 13 and is protrudingly arranged towards the accommodating groove 41. One side groove wall of the accommodating groove 41 is provided with a positioning opening 45, and the positioning block 133 is embedded in the positioning opening 45 to form a positioning cooperation. In this way, the first cover 1 can be installed on the shell 20 in the correct direction, thereby playing a foolproof role.

[0073] In some embodiments, a fitting gap is left between the bottom surface of the air-permeable shell 13 and the groove wall of the accommodating groove 41, and the fitting gap can be used for the water in the buffer space 11 to be discharged to the outside environment, thereby reducing the water accumulation in the buffer space 11.

[0074] In some embodiments, the second cover 2 includes a connecting shell 23 and a surrounding bone 24. One side of the connecting shell 23 is connected with the first cover 1, and the other side of the connecting shell 23 is connected with the surrounding bone 24. The surrounding bone 24 surrounds in a ring shape, and the inner sides of the connecting shell 23 and the surrounding bone 24 and the shell 20 form the protection space 21, and the outer side of the surrounding bone 24, the first cover 1 and the shell 20 form the buffer space 11, and the connecting opening 22 is arranged on the surrounding bone 24.

[0075] For example, the connecting shell 23 surrounds the outer periphery of the closed shell 12 in a ring shape, and the connecting shell 23 protrudes to form one side of the closed shell 12 facing the inside of the accommodating groove 41 and is arranged to extend along the depth direction of the accommodating groove 41. The surrounding bone 24 is integrally formed with the connecting shell 23, and the surrounding bone 24 is formed on the side of the connecting shell 23 away from the closed shell 12.

[0076] In this way, the connecting shell 23 and the surrounding bone 24 play a certain separation role between the buffer space 11 and the protection space 21, which can further reduce the water flow from the buffer space 11 into the protection space 21 and improve the waterproof performance.

[0077] In some embodiments, the shell 20 has a ring-shaped frame 47, the pressure relief valve 30 is located in the frame 47, and the surrounding bone 24 is inserted into the frame 47 to form a protection space 21.

[0078] For example, the frame 47 is protruding relative to the bottom of the accommodation groove 41, and the frame 47 extends towards the surrounding bone 24, and the frame 47 surrounds the pressure relief valve 30. The outer diameter of the surrounding bone 24 is matched with the inner diameter of the frame 47, and the surrounding bone 24 is inserted into the frame 47 away from the bottom of the accommodation groove 41.

[0079] In this way, the protection space 21 is formed between the inner side of the connecting shell 23, the inner side of the surrounding bone 24, the inner side of the frame 47, the bottom of the accommodation groove 41, and the closed shell 12. The buffer space 11 is formed between the outer side of the connecting shell 23, the outer side of the surrounding bone 24, the outer side of the frame 47, the bottom of the accommodation groove 41, the wall of the accommodation groove 41, and the air-permeable shell 13. The combination of the connecting shell 23, the surrounding bone 24, and the frame 47 separates the buffer space 11 and the protection space 21, which can further reduce the water flow from the buffer space 11 into the protection space 21 and improve the waterproof performance.

[0080] On the other hand, the surrounding bone 24 and the frame 47 are positioned and matched by being inserted into each other, which improves the installation stability of the protective cover 10 and the shell 20 and reduces the risk of the protective cover 10 being loosened or deviated.

[0081] In some embodiments, the surrounding bone 24 is provided with a slot 241, which penetrates the inner and outer sides of the surrounding bone 24, and the slot 241 is at least partially exposed to the frame 47 to form a communication port 22.

[0082] For example, the slot 241 extends along the length direction of the surrounding bone 24, and the length of the slot 241 is greater than the depth of the surrounding bone 24 inserted into the frame 47, so that a part of the slot 241 is covered by the frame 47, and another part of the slot 241 is exposed to the frame 47 to form the communication port 22.

[0083] It can be understood that by providing the slot 241 at the end of the surrounding bone 24 to form the communication port 22, the position of the communication port 22 and the position of the air-permeable hole 131 are horizontally spaced apart, which reduces the water flow from the air-permeable hole 131 into the communication port 22 and further improves the waterproof performance.

[0084] In some embodiments, the slot 241 has a plurality of slots 241 distributed along the circumference of the surrounding bone 24. For example, the number of slots 241 is four, and the four slots 241 are circumferentially spaced apart around the surrounding bone 24. In this way, the air flow rate between the protection space 21 and the buffer space 11 can be increased, and the air release and pressure relief efficiency can be improved.

[0085] In some embodiments, the battery cell assembly 40 is provided with explosion-proof valves. For example, the battery cell assembly 40 can be a device composed of a protective shell and a plurality of battery cells fixed in the protective shell, and each end of the battery cell is provided with an explosion-proof valve.

[0086] The area of the communication port 22 is not less than 3 times the opening area of the explosion-proof valve. In this way, the corresponding gas discharge pressure relief requirement of the explosion-proof valve can be met, and the explosion-proof function can be ensured.

[0087] It is worth noting that the opening area of the explosion-proof valve can be configured according to the type of the battery cell, and the sum of the areas of the respective communication ports 22 can also be adaptively adjusted. In addition, the specific area of a single communication port 22 can be configured according to the required sum of the areas, and the number or position of the respective communication ports 22 can also be adaptively adjusted according to the gas discharge pressure relief requirement, which is not limited in the present application.

[0088] Figure 10 A planar layout schematic diagram of the protective cover provided by an embodiment of the present application is shown.

[0089] Please refer to Figure 10 In some embodiments, the projection of the communication port 22 and the air vent hole 131 are arranged adjacent to each other in the direction perpendicular to the first cover shell 1. In this way, the distance between the outer periphery of the closed shell 12 and the adjacent air vent hole 131 is reduced, the shortest distance between the communication port 22 and the air vent hole 131 is shortened, and the discharged gas in the protective space 21 can quickly flow to the air vent hole 131 through the buffer space 11, thereby improving the gas discharge pressure relief efficiency.

[0090] Figure 11 A planar layout schematic diagram of the protective cover provided by another embodiment of the present application is shown.

[0091] As Figure 11 shown, in some other embodiments, the projection of the communication port 22 and the air vent hole 131 are arranged staggered in the direction perpendicular to the first cover shell 1. In this way, the distance between the outer periphery of the closed shell 12 and the adjacent air vent hole 131 is increased, the shortest distance between the communication port 22 and the communication port 22 is increased, and the water flow through the air vent hole 131 into the communication port 22 is reduced, thereby improving the waterproof performance.

[0092] As Figure 2 , Figure 3 and Figure 4 shown, the present application also provides a power supply 100. The power supply 100 includes a housing 20, a battery cell assembly 40, a pressure relief valve 30, and a protective cover 10 according to any one of the embodiments described above. The battery cell assembly 40 is arranged inside the housing 20, the pressure relief valve 30 is embedded in the housing 20, and the protective cover 10 is arranged outside the housing 20.

[0093] Specifically, the pressure relief valve 30 is a silica gel pressure relief valve 30, which is used for gas relief when gas expansion occurs in the shell 20. The protective cover 10 is used to protect the pressure relief valve 30 and reduce the impact of water flow from the external environment on the pressure relief valve 30.

[0094] The electric cell assembly 40 has an explosion-proof valve. Specifically, the electric cell assembly 40 can be a device composed of a protective shell and a plurality of electric cells fixed in the protective shell, and each electric cell is provided with an explosion-proof valve. The area of the communication port 22 is not less than 3 times the opening area of the explosion-proof valve. In this way, the corresponding gas relief requirements of the explosion-proof valve can be met, and the explosion-proof function can be ensured.

[0095] As shown in Figure 1 , Figure 3 and Figure 4 , the application also provides an air conditioning device 1000. The air conditioning device 1000 comprises an air conditioning host 200 and the power supply 100 in any one of the above embodiments. The air conditioning host 200 is fixed to the power supply 100, and the power supply 100 is electrically connected to the air conditioning host 200. The power supply 100 can supply power to the air conditioning host 200 to maintain the normal operation of the air conditioning host 200.

[0096] The implementation principle and beneficial effects of the power supply 100 and the air conditioning device 1000 provided by the embodiments of the application are described in detail in the foregoing embodiments, and will not be repeated here.

[0097] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the application and are not limiting. Although the application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the application.

Claims

1. A protective cover characterized in that, The application is applied to a power supply, which comprises a shell and a pressure relief valve arranged in the shell and used for releasing pressure when gas expansion occurs in the shell. The protective cover is connected to the shell, and comprises a first cover and a second cover. The first cover is connected to the shell and encloses the shell to form a buffer space, which is in communication with the external environment. The first cover is configured to reduce the water flow from the external environment into the buffer space. The second cover is arranged on the first cover and forms a protection space with the shell. The protection space is configured to accommodate the pressure relief valve. The second cover is provided with a communication port, which communicates the protection space with the buffer space. The second cover is configured to offset the impact force of the water flow into the buffer space.

2. The boot of claim 1, wherein, The second cover comprises a connecting shell and a surrounding bone. One side of the connecting shell is connected to the first cover, and the other side is connected to the surrounding bone. The surrounding bone is annular. The connecting shell, the surrounding bone, and the shell enclose the protection space. The surrounding bone, the first cover, and the shell form the buffer space. The communication port is arranged on the surrounding bone.

3. The boot of claim 2, wherein, The shell has an annular frame, and the pressure relief valve is located in the frame. The surrounding bone is inserted into the frame to form the protection space.

4. The boot of claim 3, wherein, One end of the surrounding bone close to the frame is provided with a slot, which penetrates the inner and outer sides of the surrounding bone. The slot is at least partially exposed to the frame to form the communication port.

5. The boot of claim 1, wherein, The first cover comprises a closed shell and a breathable shell. The closed shell is connected to the second cover. The breathable shell is connected to the periphery of the closed shell and connected to the shell. The closed shell, the breathable shell, and the shell enclose the buffer space. The breathable shell is provided with a plurality of air holes, which are in communication with the buffer space.

6. The boot claimed in claim 5, wherein The projection of the communication port and the air holes are staggered in the direction perpendicular to the first cover.

7. The protective cover of any one of claims 1-6, wherein, The first cover is inclined from top to bottom towards the shell.

8. The protective cover of any one of claims 1-6, wherein, The first cover is provided with a positioning block on the side close to the shell. The positioning block is positioned with the shell.

9. A power supply, characterized by, The power supply comprises a shell, an electric core assembly, a pressure relief valve, and a protective cover according to any one of claims 1 to 8. The electric core assembly is arranged in the shell. The pressure relief valve is embedded in the shell. The protective cover is arranged outside the shell.

10. The power supply of claim 9, wherein, The electric core assembly has an explosion-proof valve. The area of the communication port is not less than 3 times the opening area of the explosion-proof valve.

11. An air conditioning apparatus characterized by comprising: The power supply comprises an air conditioner host and a power supply according to claim 9 or 10. The air conditioner host is fixed to the power supply. The power supply is electrically connected to the air conditioner host.

Images