Battery device and energy storage device and power utilization device with same

Abstract

The utility model discloses a battery device and an energy storage device and an electric device with the same, and the battery device comprises a first box body, a second box body, a third box body and a fourth box body, the bottom protection plate is arranged on one side of the first box body, a foaming cavity is defined between the bottom plate and the bottom protection plate in a matched mode, and the foaming cavity communicates with the exhaust hole; the foaming part is formed in the foaming cavity; the exhaust valve is mounted in the exhaust hole, and sealant is filled between the exhaust valve and the inner wall of the exhaust hole. According to the battery device disclosed by the utility model, the exhaust hole communicated with the foaming cavity is formed in the bottom plate, the exhaust valve is mounted in the exhaust hole, and the sealant is filled between the exhaust valve and the inner wall of the exhaust hole, so that the exhaust valve and the exhaust hole are assembled and fixed more firmly and are sealed more reliably, and the risk of sealing failure of the one-way valve is well reduced; and the one-way valve operates more stably.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery equipment technical field especially is related to a battery device and have its energy storage device and electric device of using. BACKGROUND

[0002] In the battery pack, the bottom guard plate and the basin body are connected by using foaming parts and structural glue, for example, rigid polyurethane foam plastic, and carbon dioxide gas is generated in the foaming process of the rigid polyurethane foam plastic, in order to ensure sealing and prevent the bottom guard plate and the basin body from being deformed, a one-way valve is usually arranged to exhaust, and there is a risk of sealing failure at the one-way valve, especially when the one-way valve is a plastic valve, the clamping claw of the one-way valve is prone to breakage, and the risk of sealing failure of the one-way valve is greater. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a battery device, which can improve the sealing reliability of the one-way valve and greatly reduce the risk of sealing failure of the one-way valve.

[0004] The utility model further provides an energy storage device with the above-mentioned battery device.

[0005] The utility model further provides an electric device with the above-mentioned battery device or energy storage device.

[0006] According to the battery device of the utility model, the exhaust hole is arranged on the bottom plate and communicates with the foaming cavity, the exhaust valve is installed in the exhaust hole, and the sealing glue is filled between the exhaust valve and the inner wall of the exhaust hole, so that the exhaust valve and the exhaust hole are more firmly assembled and fixed and more reliably sealed, thereby reducing the risk of sealing failure of the one-way valve and making the one-way valve operate more stably.

[0007] According to the battery device of the utility model, the exhaust hole is arranged on the bottom plate and communicates with the foaming cavity, the exhaust valve is installed in the exhaust hole, and the sealing glue is filled between the exhaust valve and the inner wall of the exhaust hole, so that the exhaust valve and the exhaust hole are more firmly assembled and fixed and more reliably sealed, thereby reducing the risk of sealing failure of the one-way valve and making the one-way valve operate more stably.

[0008] In some embodiments of the utility model, the exhaust valve comprises: a valve body; a clamping part connected with the valve body, the clamping part is arranged in the exhaust hole and is connected with the periphery of the exhaust hole, and the valve body and / or the clamping part is filled with the sealing glue between the inner wall of the exhaust hole.

[0009] In an embodiment of the utility model, the exhaust valve further includes a sealing ring, the sealing ring is sleeved on the clamping part, and the sealing ring is sealed and abuts between the inner wall of the exhaust hole and the clamping part.

[0010] The exhaust valve in the embodiment is provided with a valve body and a clamping part, has simple structure, can be conveniently assembled and fixed with the exhaust hole, and well meets the use requirement of the exhaust valve.

[0011] In some examples of the utility model, the compression amount of the sealing ring is greater than or equal to 20% and less than or equal to 30%.

[0012] In the embodiment, the compression amount of the sealing ring is greater than or equal to 20%, so that the sealing ring can have sufficient compression amount to form sealing pressure abutting against the inner wall of the exhaust hole in cooperation with the sealing glue, thereby making the sealing of the exhaust valve and the exhaust hole more reliable and stable.

[0013] In an embodiment of the utility model, the valve body has an exhaust cavity and an exhaust outlet communicated with the exhaust cavity, the valve body is provided with an exhaust inlet communicated with the foaming cavity, and the exhaust valve further includes a waterproof air-permeable film arranged on the exhaust cavity and covering the exhaust inlet.

[0014] In the embodiment, the valve body is provided with the exhaust cavity, the exhaust inlet and the exhaust outlet, has simple structure, and can well meet the exhaust requirement of the gas.

[0015] In an embodiment of the utility model, the clamping part includes a plurality of clamping claws, the plurality of clamping claws are arranged at intervals along the circumference of the exhaust hole, the clamping claw extends along a straight line in the direction from the bottom plate to the foaming cavity, or the clamping claw extends obliquely to the radial outside of the exhaust hole in the direction from the bottom plate to the foaming cavity.

[0016] The clamping jaw is arranged to extend linearly in the direction from the bottom plate to the foaming cavity, so that the clamping jaw can be conveniently and easily inserted into the exhaust hole and clamped and matched with the exhaust hole, and the exhaust valve is convenient to assemble with the exhaust hole.

[0017] In some embodiments of the utility model, the periphery of the exhaust hole is formed with a flange extending towards the bottom guard plate, and the flange extends annularly along the circumference of the exhaust hole.

[0018] The exhaust hole is formed with a flange in the embodiment, so that the structure is simple, a larger matching sealing surface can be provided for the sealing clamping of the clamping jaw and the exhaust hole, the sealing glue can be conveniently and stably filled between the inner wall of the exhaust hole and the clamping jaw, the sealing ring in the exhaust valve can be well matched with the inner wall of the exhaust hole, and a stable and reliable sealing structure can be formed between the exhaust valve and the exhaust hole, so that the sealing reliability of the exhaust valve is higher, and the probability of sealing failure of the exhaust valve is further reduced.

[0019] In an embodiment of the utility model, at least part of the flange is formed as an inclined section, the inclined section extends annularly along the circumference of the exhaust hole, and the cross-sectional size of the inclined section gradually decreases in the direction from the bottom plate to the bottom guard plate.

[0020] At least part of the flange is formed as an inclined section in the embodiment, and the cross-sectional size of the inclined section gradually decreases in the direction from the bottom plate to the bottom guard plate, so that the flange can play a limiting supporting and fixing role on the sealing ring of the exhaust valve in the direction from the bottom plate to the bottom guard plate, sufficient arrangement space can be provided for the arrangement of the sealing ring in the exhaust hole, the exhaust valve can be stably assembled in place at the exhaust hole, and the exhaust valve is convenient to assemble with the exhaust hole.

[0021] In some examples of the utility model, the flange further comprises a vertical section, the vertical section is connected to one end of the inclined section towards the bottom guard plate, and extends towards the bottom guard plate in the axial direction of the exhaust hole.

[0022] The flange is provided with a vertical section at one end of the inclined section towards the bottom guard plate in the embodiment, the vertical section extends in the axial direction of the exhaust hole, so that the vertical section can play a good guiding role on the clamping jaw and a better supporting and matching role on the clamping jaw in the radial direction of the exhaust hole when the exhaust valve is assembled with the exhaust hole, the exhaust valve can be stably clamped and assembled in place, and the clamping of the clamping jaw with the flange is stable.

[0023] In some examples of the utility model, the included angle between the inclined section and the central axis of the exhaust hole is greater than or equal to 20 degrees and less than or equal to 60 degrees.

[0024] In the embodiment, the angle between the inclined section and the central axis of the exhaust hole is greater than or equal to 20 degrees and less than or equal to 60 degrees, so that the inclined section has a sufficient inclination angle to play a good guiding role and a supporting role, the exhaust valve can be smoothly and stably clamped in place, and the inclination angle of the inclined section is small, so that the exhaust hole has a sufficient assembly gap, so that the pawl can conveniently pass through the clamping, thereby facilitating the assembly of the exhaust valve and the exhaust hole.

[0025] In some examples of the utility model, the length of the inclined section along the inclined direction is greater than or equal to 3 mm and less than or equal to 6 mm.

[0026] In the embodiment, the length of the inclined section along the inclined direction is greater than or equal to 3 mm, so that the inclined section has a longer size to form a larger area for sealing cooperation with the exhaust valve, the sealing ring of the exhaust valve can stably abut against the surface of the inclined section, and a larger sealing cooperation structure can be formed between the exhaust valve and the exhaust hole through the filling of the sealing glue, thereby forming a stable and reliable sealing between the exhaust valve and the exhaust hole.

[0027] In some embodiments of the utility model, the battery device further comprises a heat exchange assembly, the heat exchange assembly comprises one or more heat exchange pipes, the heat exchange pipes are arranged in the foaming cavity, both ends of the heat exchange pipes are formed into access pipe sections, the access pipe sections of the heat exchange assembly are arranged at intervals, and the exhaust hole is formed between two adjacent access pipe sections.

[0028] In the embodiment, the exhaust hole is formed between two adjacent access pipe sections, which is reasonable, so that the gas generated by the foaming piece can flow smoothly to the exhaust inlet and be discharged, thereby enabling the exhaust valve to stably and reliably perform the exhaust operation.

[0029] According to the energy storage device of the second aspect of the utility model, the battery device of the first aspect is arranged, the exhaust hole communicating with the foaming cavity is arranged on the bottom plate, the exhaust valve is installed in the exhaust hole and filled with sealing glue between the exhaust valve and the inner wall of the exhaust hole, the assembly and fixation of the exhaust valve and the exhaust hole are more reliable and the sealing is more reliable, thereby reducing the risk of sealing failure of the one-way valve and enabling the one-way valve to operate more stably.

[0030] According to the energy storage device of the utility model, by arranging the battery device of the first aspect, arranging the exhaust hole communicating with the foaming cavity on the bottom plate, and filling the sealing glue between the exhaust valve and the inner wall of the exhaust hole, the assembly and fixation of the exhaust valve and the exhaust hole are more reliable and the sealing is more reliable, thereby reducing the risk of sealing failure of the one-way valve and enabling the one-way valve to operate more stably.

[0031] According to the power utilization device of the third aspect of the utility model, the battery device of the first aspect or the energy storage device of the second aspect is arranged, and the battery device or the energy storage device is used for storing or providing electric energy.

[0032] According to the power utilization device of the utility model, through setting the battery device of above first aspect or the energy storage device of second aspect, through setting the exhaust hole communicated with the foaming cavity on the bottom plate, the exhaust valve is installed in the exhaust hole and the sealant is filled between the exhaust valve and the inner wall of the exhaust hole, so that the exhaust valve is more firmly assembled and fixed and the sealing is more reliable, thereby the risk of one-way valve sealing failure is well reduced and the one-way valve operation is more stable.

[0033] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is the schematic diagram of the power utilization device according to the embodiment of the utility model;

[0035] Figure 2 is the schematic diagram of the battery device according to the embodiment of the utility model;

[0036] Figure 3 is the schematic diagram of the battery device according to the embodiment of the utility model in the exhaust valve position;

[0037] Figure 4 is the schematic diagram of the bottom plate and exhaust valve according to the embodiment of the utility model;

[0038] Figure 5 is the schematic diagram of the bottom plate and exhaust valve according to the embodiment of the utility model from another angle;

[0039] Figure 6 is the schematic diagram of the bottom plate and exhaust valve according to the embodiment of the utility model in the cross section;

[0040] Figure 7 is the schematic diagram of the bottom plate and exhaust valve according to the embodiment of the utility model from another angle in the cross section;

[0041] Figure 8 is the schematic diagram of the exhaust valve according to the embodiment of the utility model.

[0042] Reference signs:

[0043] 10, exhaust valve; 101, exhaust cavity; 102, exhaust inlet; 103, exhaust outlet;

[0044] 11, valve body; 12, clamping portion; 121, clamping jaw; 13, sealing ring; 14, waterproof air-permeable membrane;

[0045] 20, bottom plate; 21, flange; 211, inclined section; 212, vertical section;

[0046] 30, bottom guard plate;

[0047] 40, heat exchange assembly; 41, heat exchange tube; 411, inlet / outlet tube section;

[0048] 50, foaming member; 60, sealant; 1001, foaming cavity;

[0049] 100, battery device; 200, motor; 300, controller;

[0050] 1000, electric device. DETAILED DESCRIPTION

[0051] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0052] 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 herein are only for the purpose of describing 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 drawings are intended to cover non-exclusive inclusion.

[0053] In the description of the embodiments of the present application, the technical terms "first", "second", etc. 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 and specifically limited.

[0054] In this paper, the "embodiment" means that the specific features, structures or properties described in combination with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. The skilled person in the art explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.

[0055] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents a "or" relationship between the front and rear associated objects.

[0056] In the description of the embodiments of the utility model, the term "a plurality of" refers to two or more (including two).

[0057] In the description of the embodiments of the utility model, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the utility model.

[0058] In the description of the embodiments of the utility model, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; 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 or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0059] At present, from the development of market situation, the application of power battery is more and more extensive. The power battery is not only applied to the energy storage power supply system of water power, fire power, wind power and solar power station, but also widely applied to electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields. With the continuous expansion of the application field of power battery, the market demand is also increasing.

[0060] In the battery device, the bottom guard plate and the box body are connected through the foaming piece and the structural glue, gas is generated in the foaming process of the foaming piece, a one-way valve is arranged on the box body to discharge the gas, at present, the one-way valve has the risk of sealing failure, especially when the one-way valve is made of plastic valve to reduce the cost, the claw of the one-way valve has the risk of breaking due to insufficient material strength, so that the one-way valve has a great risk of sealing failure.

[0061] Based on the above consideration, the embodiment discloses a battery device, which is connected and sealed by coating glue at the one-way valve, which can well reduce the risk of sealing failure of the one-way valve.

[0062] The battery device according to the embodiments of the present application can include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can include a plurality of battery cells connected in series, in parallel or in a hybrid manner through a busbar component. The battery cell assembly is usually formed by arranging a plurality of battery cells. For example, the battery cell assembly can be a battery module formed by arranging and fixing a plurality of battery cells into an independent module, and the battery module can be formed by bundling a plurality of battery cells with a cable tie. The technical solutions described in the embodiments of the present application are applicable to various electric devices using battery cells, such as mobile phones, portable devices, notebook computers, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, etc. For example, the spacecraft includes an airplane, a rocket, a space shuttle and a spacecraft, etc.

[0063] The following embodiments are described by taking a vehicle as an example for convenience of description. The vehicle can be a fuel automobile, a gas automobile or a new energy automobile. The new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile, etc. The vehicle is internally provided with a battery device, which can be arranged at the bottom, the head or the tail of the vehicle. The battery device can be used for power supply of the vehicle, for example, the battery device can be used as an operating power source of the vehicle. The vehicle can further include a controller and a motor, and the controller is used to control the battery device to supply power to the motor, for example, for power demand of starting, navigation and driving of the vehicle.

[0064] In some embodiments of the present application, the battery device can not only be used as an operating power source of the vehicle, but also be used as a driving power source of the vehicle, instead of or partially instead of fuel or natural gas to provide driving power for the vehicle.

[0065] The following description is made with reference to the accompanying drawings. Figures 1-8 The battery device according to the first aspect of the present application is described. Figure 1 is a schematic view of an electric device according to an embodiment of the present application; Figure 2 is a schematic view of a battery device according to an embodiment of the present application;

[0066] Figure 3 is a schematic view of a battery device according to an embodiment of the present application in a cutaway view of the position of an exhaust valve; Figure 4 is a schematic view of a bottom plate and an exhaust valve according to an embodiment of the present application; Figure 5 is a schematic view of a bottom plate and an exhaust valve according to an embodiment of the present application from another angle; Figure 6 is a schematic view of a bottom plate and an exhaust valve according to an embodiment of the present application in a cutaway view; Figure 7is another angle view of the bottom plate and the exhaust valve according to the embodiment of the utility model; Figure 8 is a schematic view of the exhaust valve according to the embodiment of the utility model.

[0067] As Figures 1-8 Indicated, according to the battery device 100 of the utility model first aspect embodiment, including: first box, bottom guard plate 30, foaming piece 50 and exhaust valve 10.

[0068] Specifically, the bottom plate 20 of the first box is formed with an exhaust hole penetrating the bottom plate 20;Bottom guard plate 30 is arranged on one side of the first box, and the cooperation between the bottom plate 20 and the bottom guard plate 30 defines a foaming cavity 1001, and the foaming cavity 1001 is communicated with the exhaust hole;Foaming piece 50 is formed in the foaming cavity 1001;Exhaust valve 10 is installed in the exhaust hole, and the inner wall between the exhaust valve 10 and the exhaust hole is filled with sealing glue 60.

[0069] In the embodiment, the battery device 100 includes a first box, which can be used to accommodate a battery monomer assembly, and the battery device 100 can be provided with a second box that is buckled with the first box, and the first box and the second box can cooperate to form a box structure with a closed space to accommodate the battery monomer assembly, wherein the closed refers to covering or closing, which can be sealed or unsealed.

[0070] The bottom guard plate 30 is arranged on one side of the first box and cooperates with the bottom plate 20 of the first box to define a foaming cavity 1001, and the foaming piece 50 is formed in the foaming cavity 1001, when the battery device 100 is assembled, the bottom guard plate 30 cooperates with the bottom plate 20, and the foaming piece 50 foams in the foaming cavity 1001, and the gas generated in the foaming process is discharged from the exhaust hole through the exhaust valve 10 to the foaming cavity 1001.

[0071] The exhaust valve 10 of the embodiment is installed in the exhaust hole, and the exhaust valve 10 can be a plastic valve, a metal valve, etc., and the exhaust valve 10 is a one-way valve to discharge gas from the foaming cavity 1001 in one direction.

[0072] In the embodiment, the sealing glue 60 is filled between the exhaust valve 10 and the inner wall of the exhaust hole, and the sealing glue 60 can be polyurethane glue, epoxy resin glue, etc.

[0073] When the exhaust valve 10 and the exhaust hole are assembled, the hole wall of the exhaust hole or the outer peripheral wall part fixed with the exhaust hole can be coated with enough sealing glue 60, and the exhaust valve 10 is assembled and fixed with the exhaust hole, so that the sealing glue 60 seals the exhaust valve 10 and the exhaust hole.

[0074] The exhaust hole is arranged on the bottom plate 20 in the embodiment, gas can be discharged from the foaming cavity 1001, the probability of bulging deformation of the bottom guard plate 30 and the bottom plate 20 is greatly reduced, the exhaust valve 10 is installed in the exhaust hole, and gas can be discharged through the exhaust valve 10, so that the needs of the foaming cavity 1001 for discharging and sealing are met.

[0075] The sealing glue 60 is filled between the exhaust valve 10 and the inner wall of the exhaust hole in the embodiment, so that the exhaust valve 10 and the inner wall of the exhaust hole are in a stable and reliable connection and sealing state, the sealing glue 60 can greatly reduce the risk of structural damage of the exhaust valve 10 and sealing failure, for example, when the exhaust valve 10 is a plastic valve, the sealing glue 60 can play a role in structural reinforcement on the pawl 121 of the exhaust valve 10, so that the pawl 121 is not easy to break, thereby making the connection and fixation of the exhaust valve 10 and the exhaust hole more reliable, and the probability of sealing failure of the exhaust valve 10 is greatly reduced.

[0076] According to the battery device 100 in the embodiment of the utility model, the exhaust hole communicated with the foaming cavity 1001 is arranged on the bottom plate 20, the exhaust valve 10 is installed in the exhaust hole, and the sealing glue 60 is filled between the exhaust valve 10 and the inner wall of the exhaust hole, so that the exhaust valve 10 and the exhaust hole are more firmly assembled and fixed and more reliably sealed, thereby greatly reducing the risk of sealing failure of the one-way valve and making the one-way valve operate more stably.

[0077] In some embodiments of the utility model, referring to Figure 6 and Figure 7 As shown, the exhaust valve 10 can include a valve body 11 and a clamping portion 12, the clamping portion 12 is connected with the valve body 11, the clamping portion 12 is arranged in the exhaust hole and is clamped and connected with the periphery of the exhaust hole, and the sealing glue 60 is filled between the valve body 11 and / or the clamping portion 12 and the inner wall of the exhaust hole.

[0078] In the embodiment, the exhaust valve 10 includes the valve body 11 and the clamping portion 12, the clamping portion 12 is connected with the valve body 11 and is clamped and connected with the periphery of the exhaust hole, when the exhaust valve 10 is assembled and fixed in the exhaust hole, the clamping portion 12 of the exhaust valve 10 can be arranged in the exhaust hole from the side of the exhaust hole away from the foaming cavity 1001 and is clamped and fixed with the periphery of the exhaust hole, and the clamping portion 12 and the valve body 11 can cooperate to block the exhaust hole, so that the gas in the foaming cavity 1001 can be stably discharged from the valve body 11.

[0079] In the embodiment, the valve body 11 and / or the clamping portion 12 is filled with the sealant 60 between the valve body 11 and the inner wall of the exhaust hole, for example, the valve body 11 is filled with the sealant 60 between the valve body 11 and the inner wall of the exhaust hole, or the clamping portion 12 is filled with the sealant 60 between the clamping portion 12 and the inner wall of the exhaust hole, or the valve body 11 and the clamping portion 12 are filled with the sealant 60 between the valve body 11 and the inner wall of the exhaust hole and between the clamping portion 12 and the inner wall of the exhaust hole, and the sealant 60 can be filled according to the actual sealing requirement to meet the sealing requirement.

[0080] In the embodiment, the exhaust valve 10 is provided with the valve body 11 and the clamping portion 12, which has a simple structure and can be conveniently assembled and fixed with the exhaust hole, and can meet the use requirement of the exhaust valve 10. In the embodiment, the valve body 11 and / or the clamping portion 12 is filled with the sealant 60 between the valve body 11 and the inner wall of the exhaust hole, so that the exhaust valve 10 can be stably and reliably sealed and connected with the inner wall of the exhaust hole, thereby greatly reducing the probability of sealing failure of the exhaust valve 10.

[0081] In one embodiment of the utility model, as shown in Figure 6 and Figure 7 The exhaust valve 10 can further include a sealing ring 13, the sealing ring 13 is sleeved on the clamping portion 12, and the sealing ring 13 is sealed and abuts between the inner wall of the exhaust hole and the clamping portion 12.

[0082] In the embodiment, the exhaust valve 10 is provided with the sealing ring 13, which can be a silicone rubber part or a fluororubber part, and when the exhaust valve 10 is assembled into the exhaust hole, the sealing ring 13 sleeved on the clamping portion 12 cooperates with the sealant 60 to seal and connect the exhaust valve 10 with the exhaust hole.

[0083] In the embodiment, the exhaust valve 10 is further provided with the sealing ring 13, which abuts and seals with the exhaust hole, so that the exhaust valve 10 and the exhaust hole can form a double-layer sealing structure, thereby making the sealing effect of the exhaust valve 10 and the exhaust hole better, the sealing more stable and reliable, and thereby further reducing the risk of sealing failure of the exhaust valve 10 and making the operation of the exhaust valve 10 more stable and reliable.

[0084] In some examples of the utility model, the compression amount of the sealing ring 13 can be greater than or equal to 20% and less than or equal to 30%.

[0085] In the embodiment, the compression amount of the sealing ring 13 is greater than or equal to 20% and less than or equal to 30%, for example, the compression amount of the sealing ring 13 can be 20%, 25%, 26%, 28%, 30% and the like.

[0086] In the embodiment, the compression amount of the sealing ring 13 is greater than or equal to 20%, so that the sealing ring 13 has sufficient compression amount to form a sealing pressure abutting against the inner wall of the exhaust hole in cooperation with the sealing glue 60, thereby making the exhaust valve 10 and the exhaust hole more reliably and stably sealed. When the compression amount of the sealing ring 13 is less than or equal to 30%, the sealing ring 13 can be more easily sealed and assembled with the exhaust hole, and the sealing ring 13 can maintain a good structural state, thereby making the exhaust valve 10 and the exhaust hole more stably and sealingly connected.

[0087] In an embodiment of the utility model, as shown in Figure 7 The valve body 11 can have an exhaust cavity 101 and an exhaust outlet 103 communicating with the exhaust cavity 101. The valve body 11 is provided with an exhaust inlet 102 communicating with the foaming cavity 1001. The exhaust valve 10 further comprises a waterproof air-permeable film 14 arranged in the exhaust cavity 101 and covering the exhaust inlet 102.

[0088] In the embodiment, the valve body 11 is provided with the exhaust cavity 101, the exhaust outlet 103 and the exhaust inlet 102. The exhaust inlet 102 communicates with the foaming cavity 1001, and the exhaust outlet 103 communicates with the exhaust cavity 101. Specifically, the exhaust inlet 102 also communicates with the exhaust cavity 101. When the gas is discharged from the foaming cavity 1001, the gas flows into the exhaust cavity 101 from the exhaust inlet 102 and is discharged from the exhaust outlet 103. In the exhaust cavity 101, the exhaust valve 10 is further provided with the waterproof air-permeable film 14 covering the exhaust inlet 102. As the gas flows into the exhaust cavity 101, the moisture contained in the gas can be separated at the waterproof air-permeable film 14, and the gas without moisture flows into the exhaust cavity 101.

[0089] In the embodiment, the valve body 11 is provided with the exhaust cavity 101, the exhaust inlet 102 and the exhaust outlet 103. The structure is simple and can well meet the needs of gas discharge. The waterproof air-permeable film 14 is arranged at the exhaust inlet 102 to well reduce the probability of water flowing into the first box body with the gas, so that the box body structure can maintain a good operating environment to make the battery monomer assembly operate stably.

[0090] In an embodiment of the utility model, as shown in Figure 7 and Figure 8 The clamping portion 12 can comprise a plurality of clamping claws 121 arranged at intervals along the circumference of the exhaust hole. The clamping claw 121 extends along a straight line in the direction from the bottom plate 20 to the foaming cavity 1001, or the clamping claw 121 extends obliquely to the radial outside of the exhaust hole in the direction from the bottom plate 20 to the foaming cavity 1001.

[0091] The clamping portion 12 in the embodiment is provided with a plurality of clamping claws 121, for example, the number of the clamping claws 121 can be two, three, four, five, etc., the plurality of clamping claws 121 are arranged at intervals along the circumference of the exhaust hole, and the plurality of clamping claws 121 can cooperate to be clamped and connected with the exhaust hole.

[0092] In the embodiment, the clamping claw 121 is arranged to extend in a straight line in a direction from the bottom plate 20 to the foaming cavity 1001, which is simple in structure and facilitates the insertion of the clamping claw 121 into the exhaust hole to be clamped and matched with the exhaust hole, thereby facilitating the assembly of the exhaust valve 10 and the exhaust hole.

[0093] In some embodiments of the utility model, as shown in Figure 7 The periphery of the exhaust hole can be formed with a flange 21 extending towards the bottom guard plate 30, and the flange 21 extends in a ring shape along the circumference of the exhaust hole.

[0094] In the embodiment, the periphery of the exhaust hole is formed with a flange 21 extending towards the bottom guard plate 30, and the flange 21 extends in a ring shape along the circumference of the exhaust hole, and when the exhaust valve 10 is assembled with the exhaust hole, the sealing glue 60 can be coated on the flange 21, the clamping claw 121 cooperates with the sealing ring 13 to be sealed and clamped with the flange 21 and the sealing glue 60 on the flange 21, the valve body 11 of the exhaust valve 10 can abut against the side of the bottom plate 20 away from the bottom guard plate 30 to cooperate with the clamping claw 121, the flange 21 and the sealing ring 13 and the sealing glue 60 to form a sealing structure, and the surface of the side of the flange 21 away from the bottom guard plate 30 can be formed as the inner wall of the exhaust hole.

[0095] In the embodiment, the exhaust hole is formed with the flange 21, which is simple in structure and can provide a larger matching sealing surface for the sealing and clamping of the clamping claw 121 and the exhaust hole, so that the sealing glue 60 can be conveniently and stably filled between the inner wall of the exhaust hole and the clamping claw 121, the sealing ring 13 in the exhaust valve 10 can be well matched with the inner wall of the exhaust hole, and a stable and reliable sealing structure can be formed between the exhaust valve 10 and the exhaust hole, so that the sealing reliability of the exhaust valve 10 is higher, and the probability of sealing failure of the exhaust valve 10 is further reduced.

[0096] In an embodiment of the utility model, as shown in Figure 7 At least part of the flange 21 can be formed as an inclined section 211, which extends in a ring shape along the circumference of the exhaust hole, and the cross-sectional size of the inclined section 211 gradually decreases in the direction from the bottom plate 20 to the bottom guard plate 30.

[0097] At least part of the turn-up 21 is formed as an inclined section 211 in the embodiment, the inclined section 211 extends in a ring shape along the circumference of the exhaust hole, and the cross-sectional size of the inclined section 211 gradually decreases in the direction from the bottom plate 20 to the bottom guard plate 30, that is, the inclined section 211 can form a funnel-shaped structure in the direction from the bottom plate 20 to the bottom guard plate 30, and the sealing ring 13 can abut against the surface of the inclined section 211 after the exhaust valve 10 is assembled with the exhaust hole.

[0098] At least part of the turn-up 21 is formed as an inclined section 211 in the embodiment, and the cross-sectional size of the inclined section 211 gradually decreases in the direction from the bottom plate 20 to the bottom guard plate 30, so that the turn-up 21 can support and fix the sealing ring 13 of the exhaust valve 10 in the direction from the bottom plate 20 to the bottom guard plate 30, and sufficient arrangement space can be provided for the arrangement of the sealing ring 13 at the exhaust hole, so that the exhaust valve 10 can be stably assembled at the exhaust hole, and the exhaust valve 10 is convenient and easy to assemble with the exhaust hole.

[0099] In some examples of the utility model, as shown in Figure 7 The turn-up 21 can also include a vertical section 212, the vertical section 212 is connected to one end of the inclined section 211 facing the bottom guard plate 30 and extends towards the bottom guard plate 30 in the axial direction of the exhaust hole (for example, the z direction as shown in Figure 7

[0100] The turn-up 21 also includes the vertical section 212 in the embodiment, the vertical section 212 is connected to one end of the inclined section 211 facing the bottom guard plate 30 and extends in the axial direction of the exhaust hole, and after the exhaust valve 10 is assembled with the exhaust hole, the head of the clamping jaw 121 moves towards the bottom guard plate 30 along the vertical section 212 and passes through one end of the vertical section 212 away from the inclined section 211 to be assembled with the one end of the vertical section 212, and the clamping jaw 121 and the one end of the vertical section 212 can be interference fit to be assembled firmly, and for example, the clamping jaw 121 and the vertical section 212 can be filled with sealing glue 60, and the head of the clamping jaw 121 and the one end of the vertical section 212 can also be filled with sealing glue 60 to be assembled and fixed.

[0101] The turn-up 21 is provided with the vertical section 212 at one end of the inclined section 211 facing the bottom guard plate 30 in the embodiment, and the vertical section 212 extends in the axial direction of the exhaust hole, so that when the exhaust valve 10 is assembled with the exhaust hole, the vertical section 212 can well guide the clamping jaw 121 and better support and cooperate the clamping jaw 121 in the radial direction of the exhaust hole, so that the exhaust valve 10 can be stably assembled in place, and the clamping jaw 121 can be stably assembled with the turn-up 21.

[0102] In some examples of the utility model, the included angle between the inclined section 211 and the central axis of the exhaust hole can be greater than or equal to 20 degrees and less than or equal to 60 degrees.​

[0103] In the embodiment, the angle between the inclined section 211 and the central axis of the exhaust hole is greater than or equal to 20 degrees and less than or equal to 60 degrees, for example Figure 7 As shown in the figure, the angle α represents the angle between the inclined section 211 and the central axis of the exhaust hole, and the angle α can be 20 degrees, 22 degrees, 25 degrees, 30 degrees, 35 degrees, 50 degrees, 60 degrees, etc.

[0104] In the embodiment, the angle between the inclined section 211 and the central axis of the exhaust hole is greater than or equal to 20 degrees and less than or equal to 60 degrees, which can make the inclined section 211 have a sufficient inclination angle to play a good guiding role and a supporting role, so that the exhaust valve 10 can be smoothly and stably clamped in place, and the inclination angle of the inclined section 211 is small to make the exhaust hole have sufficient assembly clearance so that the clamping pawl 121 can conveniently pass through the clamping, thereby facilitating the assembly of the exhaust valve 10 and the exhaust hole.

[0105] In some examples of the utility model, the length of the inclined section 211 in the inclined direction can be greater than or equal to 3 mm and less than or equal to 6 mm.

[0106] In the embodiment, the length of the inclined section 211 in the inclined direction is greater than or equal to 3 mm and less than or equal to 6 mm, for example, the length of the inclined section 211 can be 3 mm, 3.2 mm, 3.5 mm, 4 mm, 5 mm, 6 mm, etc.

[0107] In the embodiment, the length of the inclined section 211 in the inclined direction is greater than or equal to 3 mm, so that the inclined section 211 has a longer size to form a larger area for sealing cooperation with the exhaust valve 10, so that the sealing ring 13 of the exhaust valve 10 can stably abut and cooperate with the surface of the inclined section 211, and the exhaust valve 10 and the exhaust hole can form a larger sealing cooperation structure through the filling of the sealing glue 60, thereby forming a stable and reliable sealing between the exhaust valve 10 and the exhaust hole.

[0108] In the embodiment, the length of the inclined section 211 in the inclined direction is less than or equal to 6 mm, so that the length of the inclined section 211 is within an appropriate range, so that the inclined section 211 can be well matched with the exhaust valve 10 for assembly, and the exhaust valve 10 and the exhaust hole can be stably sealed.

[0109] In some examples of the utility model, as shown in Figure 2 and Figure 3As shown, the battery device 100 can further include a heat exchange assembly 40, which includes one or more heat exchange pipes 41 arranged in the foaming cavity 1001, and both ends of the heat exchange pipes 41 are formed into access pipe segments 411. The access pipe segments 411 of the heat exchange assembly 40 are arranged at intervals, and an exhaust hole is formed between adjacent access pipe segments 411.

[0110] In this embodiment, one or more heat exchange pipes 41 are arranged in the foaming cavity 1001. For example, when the heat exchange pipe 41 is one, the heat exchange pipe 41 can be arranged in the foaming cavity 1001 by bending or the like. When the heat exchange pipe 41 is multiple, the multiple heat exchange pipes 41 can be arranged in the same direction, or the multiple heat exchange pipes 41 can be arranged in an interlaced structure by bending or the like. The multiple heat exchange pipes 41 can also be designed according to the needs of the pipeline structure to meet the heat exchange needs.

[0111] The heat exchange pipe 41 is arranged in the foaming cavity 1001, and the foaming member 50 can fill the gap between the heat exchange pipe 41 and the foaming cavity 1001 by foaming, so that the heat exchange pipe 41 is stably and reliably fixed in the foaming cavity 1001 and connected with the bottom plate 20 and the bottom guard plate 30.

[0112] In this embodiment, both ends of the heat exchange pipe 41 are formed into access pipe segments 411. When the heat exchange assembly 40 is working, the heat exchange fluid can flow into one end of the heat exchange pipe 41 and flow out from the other end to perform heat exchange. The multiple access pipe segments 411 are arranged at intervals. For example, the multiple access pipe segments 411 can be arranged together to facilitate the connection and assembly of the external pipeline. The exhaust hole is formed between adjacent access pipe segments 411, that is, the exhaust hole is arranged between the bottom plate 20 and the adjacent access pipe segments 411.

[0113] After the exhaust valve 10 is assembled with the exhaust hole, the exhaust inlet 102 of the exhaust valve 10 can face the gap between the adjacent access pipe segments 411. For example, the gap between the adjacent access pipe segments 411 can not be filled with the foaming member 50 as needed. The gas generated during the foaming process of the foaming member 50 flows into the exhaust inlet 102 from the gap between the adjacent access pipe segments 411, so as to be discharged from the foaming cavity 1001 through the exhaust valve 10.

[0114] It can be understood that the foaming member 50 fills the space in the foaming cavity 1001 after foaming in the foaming cavity 1001. The gap between the access pipe segments 411 of the heat exchange pipe 41 is not filled with the foaming member 50 for consideration of stress and the like. In this embodiment, the exhaust hole is formed between the adjacent access pipe segments 411, which is reasonably arranged, so that the gas generated by the foaming member 50 can flow smoothly to the exhaust inlet 102 for discharge, thereby enabling the exhaust valve 10 to stably and reliably perform the exhaust operation.

[0115] The following will be described with reference toFigures 1-8 The energy storage device according to the second aspect of the present application is described.

[0116] As shown in Figures 1-8 the energy storage device according to the embodiment of the present application comprises the battery device 100 according to the first aspect of the present application, and the battery device 100 is used for storing or providing electric energy.

[0117] Other configurations and operations of the energy storage device according to the embodiment of the present application are known to those skilled in the art, and will not be described in detail here.

[0118] The energy storage device according to the embodiment of the present application is provided with the battery device 100 of the above first aspect, the exhaust hole is arranged on the bottom plate 20 and communicates with the foaming cavity 1001, the exhaust valve 10 is installed on the exhaust hole, and the sealing glue 60 is filled between the exhaust valve 10 and the inner wall of the exhaust hole, so that the exhaust valve 10 is more firmly assembled and fixed with the exhaust hole and the sealing is more reliable, thereby well reducing the risk of sealing failure of the one-way valve and making the one-way valve operate more stably.

[0119] The power device 1000 according to the third aspect of the present application will be described below. Figures 1-8 The power device 1000 according to the third aspect of the present application is described.

[0120] As shown in Figures 1-8 the power device 1000 according to the embodiment of the present application comprises the battery device 100 according to the first aspect of the present application or the energy storage device according to the second aspect of the present application, and the battery device 100 or the energy storage device is used for storing or providing electric energy.

[0121] Other configurations and operations of the power device 1000 according to the embodiment of the present application are known to those skilled in the art, and will not be described in detail here.

[0122] The power device 1000 according to the embodiment of the present application is provided with the battery device 100 of the above first aspect or the energy storage device of the second aspect, the exhaust hole is arranged on the bottom plate 20 and communicates with the foaming cavity 1001, the exhaust valve 10 is installed on the exhaust hole, and the sealing glue 60 is filled between the exhaust valve 10 and the inner wall of the exhaust hole, so that the exhaust valve 10 is more firmly assembled and fixed with the exhaust hole and the sealing is more reliable, thereby well reducing the risk of sealing failure of the one-way valve and making the one-way valve operate more stably.

[0123] The power device 1000 according to one specific embodiment of the present application will be described below. Figures 1-8 The power device 1000 according to one specific embodiment of the present application is described.

[0124] As shown in Figures 1-8As shown, the power utilization device 1000 is a vehicle and includes a motor 200, a controller 300, and a battery device 100, the controller 300 is used to control the battery device 100 to supply power for the motor 200. The battery device 100 includes a first box body, a bottom guard plate 30, a foaming piece 50, a heat exchange assembly 40, and an exhaust valve 10.

[0125] The first box body has a bottom plate 20, the bottom guard plate 30 cooperates with the bottom plate 20 to define a foaming cavity 1001, the heat exchange assembly 40 includes a plurality of two heat exchange pipes 41, the two heat exchange pipes 41 are arranged in the foaming cavity 1001, four inlet and outlet pipe segments 411 of the two heat exchange pipes 41 are arranged together at intervals, the bottom plate 20 is provided with an exhaust hole at a position between adjacent two inlet and outlet pipe segments 411, a flange 21 is formed around the exhaust hole, the flange 21 is arranged towards the bottom guard plate 30, the exhaust valve 10 is a plastic one-way valve and includes a valve body 11, a clamping part 12, a waterproof breathable film 14, and a sealing ring 13, the valve body 11 includes an exhaust inlet 102, an exhaust outlet 103, and an exhaust cavity 101, the exhaust inlet 102 and the exhaust outlet 103 are both in communication with the exhaust cavity 101, the exhaust inlet 102 is in communication with the foaming cavity 1001, the waterproof breathable film 14 is arranged on the exhaust cavity 101 and covers the exhaust inlet 102, the exhaust valve 10 is one-way communicated from the exhaust inlet 102 towards the exhaust outlet 103, the clamping part 12 includes four clamping claws 121, the four clamping claws 121 are arranged at intervals along the circumference of the exhaust hole and are connected with the valve body 11, specifically, the four clamping claws 121 can be arranged around the exhaust inlet 102 at one end of the valve body 11 having the exhaust inlet 102, the sealing ring 13 is sleeved on the outer circumference of the four clamping claws 121, the four clamping claws 121 are connected with the clamping connection of the flange 21 of the exhaust hole, and the sealing ring 13 is sealingly abutted between the flange 21 and the clamping claw 121, and the sealing glue 60 is filled between the side of the valve body 11 towards the bottom plate 20 and the clamping part 12 and the flange 21.

[0126] The battery device 100 of the first aspect embodiment is provided, the exhaust hole in communication with the foaming cavity 1001 is arranged on the bottom plate 20, the exhaust valve 10 is installed on the exhaust hole, and the sealing glue 60 is filled between the exhaust valve 10 and the inner wall of the exhaust hole, so that the exhaust valve 10 is more firmly assembled and fixed with the exhaust hole and the sealing is more reliable, thereby well reducing the risk of sealing failure of the one-way valve and making the one-way valve operate more stably.

[0127] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. These modifications or replacements do not change the essence of the corresponding technical solutions out of the scope of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. If not specifically stated, all embodiments and optional embodiments of the present application can be combined to form new technical solutions. If not specifically stated, all technical features and optional technical features of the present application can be combined to form new technical solutions. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized by, The application relates to a first box body, a bottom plate (20) of which is formed with an exhaust hole penetrating through the bottom plate (20); a bottom guard plate (30) arranged on one side of the first box body, a foaming cavity (1001) being defined between the bottom plate (20) and the bottom guard plate (30) and being communicated with the exhaust hole; a foaming piece (50) formed in the foaming cavity (1001); and an exhaust valve (10) installed on the exhaust hole and filled with a sealing glue (60) between the exhaust valve (10) and the inner wall of the exhaust hole. The exhaust valve (10) comprises a valve body (11) and a clamping portion (12) connected with the valve body (11), the clamping portion (12) is arranged in the exhaust hole and is clamped and connected with the periphery of the exhaust hole, and the valve body (11) and / or the clamping portion (12) is filled with the sealing glue (60) between the valve body (11) and / or the clamping portion (12) and the inner wall of the exhaust hole. The exhaust valve (10) further comprises a sealing ring (13) sleeved on the clamping portion (12), and the sealing ring (13) is sealed and abuts between the inner wall of the exhaust hole and the clamping portion (12). The compression amount of the sealing ring (13) is greater than or equal to 20% and less than or equal to 30%. The valve body (11) has an exhaust cavity (101) and an exhaust outlet (103) communicated with the exhaust cavity (101), the valve body (11) is provided with an exhaust inlet (102) communicated with the foaming cavity (1001), and the exhaust valve (10) further comprises a waterproof and breathable membrane (14) arranged in the exhaust cavity (101) and covering the exhaust inlet (102).

2. The battery device according to claim 1, characterized by The clamping portion (12) comprises a plurality of clamping claws (121) arranged at intervals along the circumference of the exhaust hole. The clamping claw (121) extends in a straight line in the direction from the bottom plate (20) to the foaming cavity (1001), or the clamping claw (121) extends obliquely to the radial outside of the exhaust hole in the direction from the bottom plate (20) to the foaming cavity (1001). The periphery of the exhaust hole is formed with a flange (21) extending towards the bottom guard plate (30), and the flange (21) extends in an annular shape along the circumference of the exhaust hole.

3. The battery device of claim 2, wherein At least part of the flange (21) is formed as an inclined section (211) extending in an annular shape along the circumference of the exhaust hole, and the cross-sectional size of the inclined section (211) gradually decreases in the direction from the bottom plate (20) to the bottom guard plate (30).

4. The battery device of claim 3, wherein The flange (21) further comprises a vertical section (212) connected to one end of the inclined section (211) towards the bottom guard plate (30) and extending axially towards the bottom guard plate (30) of the exhaust hole.

5. The battery device of claim 2, wherein ​ 6. The battery device of claim 2, wherein ​ ​ 7. The battery device of claim 1, wherein ​ 8. The battery device of claim 7, wherein, ​ 9. The battery device of claim 8, wherein, ​ 10. The battery device of claim 8, wherein, An included angle between the inclined section (211) and a central axis of the exhaust hole is greater than or equal to 20 degrees and less than or equal to 60 degrees.

11. The battery device of claim 8, wherein, A length dimension of the inclined section (211) is greater than or equal to 3 mm and less than or equal to 6 mm along an inclined direction of the inclined section (211).

12. The battery device of claim 1, wherein, Further comprising a heat exchange assembly (40), the heat exchange assembly (40) comprising one or more heat exchange pipes (41), the heat exchange pipes (41) being arranged in the foaming cavity (1001), both ends of the heat exchange pipes (41) being formed into access pipe sections (411), a plurality of the access pipe sections (411) of the heat exchange assembly (40) being arranged at intervals, and the exhaust hole being formed between two adjacent access pipe sections (411).

13. An energy storage device, characterized by, A battery device according to any one of claims 1-12 for storing or providing electrical energy.

14. An electrical device, characterized by A battery device according to any one of claims 1-12 or an energy storage device according to claim 13 for storing or providing electrical energy.

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