Battery devices and power-consuming devices

Abstract

The present application discloses a battery device and an electrical device, wherein the battery device includes a first box, a heat exchanger and a connecting block, wherein the heat exchanger is arranged in the first box, and an opening is provided on the heat exchanger, and the opening includes a liquid inlet; the connecting block is arranged on the heat exchanger, and an interface is provided on the connecting block, and the interface includes a first connecting port, and the first connecting port is configured to connect the liquid inlet with the outside; a first sealed cavity is provided in the connecting block, and the first connecting port penetrates the first sealed cavity along a first direction, and the first sealed cavity is sealed and connected to the heat exchanger on the side facing the heat exchanger. In the above scheme provided by the present application, the overall device does not need to weld the interface to the heat exchanger separately, and at the same time, it does not need to weld the profile used to fix the adapter on the outside of the interface. After the connecting block is fixed to the heat exchanger, the connecting block can not only serve as an interface, but also as a carrier for fixing the adapter, and the overall process steps are reduced, and the installation efficiency is high.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery device and an electrical device. Background Art

[0002] The battery generally includes a lower box, a battery module accommodated in the lower box, and a sealing cover disposed on an upper cover of the lower box. In order to make the battery module have a better operating temperature range, a water cooling plate is generally installed in the lower box.

[0003] The water cooling plate in the related art has many steps in the installation process. Utility Model Content

[0004] In view of the above problems, the present application provides a battery device and an electrical device, which can solve the problem of many steps in the installation process of the water cooling plate.

[0005] In order to solve the above technical problems, in a first aspect, the present application proposes a battery device, comprising:

[0006] The first box;

[0007] A heat exchange element, the heat exchange element is arranged in the first box body, the heat exchange element is provided with an opening, and the opening includes a liquid inlet;

[0008] A connecting block, the connecting block is arranged on the heat exchange element, the connecting block is provided with an interface, the interface includes a first connecting port, and the first connecting port is configured to connect the liquid inlet hole with the outside;

[0009] A first sealed cavity is provided in the connection block, the first connection port penetrates the first sealed cavity along a first direction, and the first sealed cavity is sealedly connected to the heat exchange element on one side facing the heat exchange element, wherein the first direction is the direction of liquid flow in the first connection port.

[0010] In the technical solution of the embodiment of the present application, since the interface is directly provided on the connection block, when the connection block is fixed to the heat exchanger, the interface directly connects the opening and the outside, and the overall device does not need to weld the interface to the heat exchanger separately, and at the same time, it does not need to weld the profile used to fix the adapter on the outside of the interface. After the connection block is fixed to the heat exchanger, the connection block can not only serve as an interface, but also as a carrier for fixing the adapter, reducing the overall process steps and improving the installation efficiency.

[0011] In some embodiments, the opening further includes a liquid outlet, and the interface further includes a second connection port;

[0012] The second connection port is configured to connect the liquid outlet with the outside.

[0013] In some embodiments, a second sealed cavity is further provided in the connection block;

[0014] The second connection port penetrates the second sealed cavity along the first direction, and the second sealed cavity is sealedly connected to the heat exchanger on one side thereof. Thus, under the protection of the second sealed cavity, even if the second connection port and the liquid outlet are poorly sealed, the sealing between the second connection port and the liquid outlet can be ensured when the second sealed cavity is sealed to the heat exchanger on one side thereof.

[0015] In some embodiments, the liquid inlet is sealed to the first connection port, and / or the liquid outlet is sealed to the second connection port. In this way, the sealing performance between the liquid inlet and the first connection port can be improved, and at the same time, the sealing performance between the liquid outlet and the second connection port can be improved.

[0016] In some embodiments, a welding surface is provided on one side of the connection block facing the heat exchange element, so that the connection block and the heat exchange element can be welded together conveniently through the welding surface.

[0017] In some embodiments, a welding portion is disposed on the first housing, and when the connecting block is disposed on the heat exchange element, the connecting block abuts against the welding portion, so that it is convenient to weld the first housing and the connecting block together.

[0018] In some embodiments, the battery device further includes a transfer port, and the transfer port is disposed at an end of the interface away from the opening.

[0019] In some embodiments, a threaded hole is provided on the side of the connection block facing away from the heat exchanger, so that the adapter can be quickly fixed to the connection block by passing the bolt through the screw hole and the threaded hole on the adapter in sequence.

[0020] In some embodiments, an extension portion is provided on the side of the connection block, and a mounting hole is provided on the extension portion;

[0021] When the connection block is arranged on the heat exchanger, the extension part is at least partially located outside the heat exchanger. In this way, the connection block is connected to the vehicle by passing the bolts through the mounting holes, thereby facilitating the fixing of the connection block to the vehicle.

[0022] In a second aspect, the present application proposes an electrical device, comprising a battery device as described in any one of the embodiments of the present application.

[0023] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the embodiments below. The accompanying drawings are only for the purpose of illustrating the embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0025] Figure 1 A schematic diagram of the structure of an electric device provided in some embodiments of the present application;

[0026] Figure 2 A schematic diagram of the structure of a battery provided in some embodiments of the present application;

[0027] Figure 3 A schematic diagram of the structure of a battery cell provided in some embodiments of the present application;

[0028] Figure 4 A schematic diagram of the structure of a battery device provided in some embodiments of the present application;

[0029] Figure 5 for Figure 4 Exploded diagram of

[0030] Figure 6 A schematic diagram of the connection structure between the heat exchange element and the connection block provided in some embodiments of the present application;

[0031] Figure 7 Schematic diagram of a heat exchange element provided for some embodiments of the present application;

[0032] Figure 8 A schematic diagram of a connection block provided for some embodiments of the present application;

[0033] Fig. 9 for Figure 8 Bottom view of

[0034] Fig.10 for Figure 8 The main view of

[0035] Fig.11 for Figure 8 Side view of.

[0036] The reference numerals in the specific implementation manner are as follows:

[0037] 1000. Vehicles;

[0038] 100, battery; 200, controller; 300, motor;

[0039] 110, second housing; 111, first part; 112, second part; 120, battery cell; 121, housing; 122, end cover; 123, electrode assembly;

[0040] 400. Battery device;

[0041] 410, first box body; 411, welding part; 420, heat exchanger; 421, opening; 4211, liquid inlet; 4212, liquid outlet; 430, connecting block; 431, interface; 4311, first connecting port; 4312, second connecting port; 432, threaded hole; 433, extension part; 434, mounting hole; 435, first sealed cavity; 436, second sealed cavity; 437, welding surface; 440, adapter. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0044] 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 "multiple" is more than two, unless otherwise clearly and specifically defined.

[0045] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0048] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0049] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0050] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0051] In the related art, the battery generally includes a lower box, a battery module accommodated in the lower box, and a sealing cover disposed on an upper cover of the lower box. In order to make the battery module have a better operating temperature range, a water cooling plate is generally installed in the lower box.

[0052] In the cooling system of the power battery, due to the requirements of some products, the interface is independent on the outside of the lower box. The interface will be assembled with the water cooling plate through brazing. At the same time, a section of profile is welded on the outside of the interface to fix the adapter connected to the whole vehicle. This inevitably increases the installation process and is prone to sealing failure.

[0053] Based on the above considerations, in order to solve the problem of many process steps during the installation of the water-cooled plate, a battery device is designed, which includes a first box body, a heat exchanger and a connecting block, wherein the heat exchanger is arranged in the first box body, the heat exchanger is provided with an opening, and the opening includes a liquid inlet; the connecting block is arranged on the heat exchanger, and an interface is provided on the connecting block, the interface includes a first connecting port, and the first connecting port is configured to connect the liquid inlet with the outside; a first sealed cavity is provided in the connecting block, the first connecting port penetrates the first sealed cavity along a first direction, and the first sealed cavity is sealed and connected to the heat exchanger on one side facing the heat exchanger, wherein the first direction is the direction of liquid flow in the first connecting port.

[0054] During the installation process, since the connection block is directly provided with an interface, when the connection block is fixed to the heat exchanger, the interface directly connects the opening and the outside, and the overall device does not need to weld the interface to the heat exchanger separately, and at the same time, it does not need to weld the profile used to fix the adapter on the outside of the interface. After the connection block is fixed to the heat exchanger, the connection block can not only serve as an interface, but also as a carrier for fixing the adapter, reducing the overall process steps and improving the installation efficiency.

[0055] The battery in this application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery pack, etc. The battery can be used as a power source or power system for an electrical device, which is conducive to improving the overall performance of the battery and facilitating the promotion of the battery.

[0056] The above-mentioned electrical devices may be, but are not limited to, mobile phones, tablets, laptop computers, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. Among them, electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0057] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0058] Please refer to Figure 1The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000. The battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000. For example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300, for example, to meet the power requirements for starting, navigating and driving the vehicle 1000.

[0059] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0060] Please refer to Figure 2 The battery 100 includes a second box body 110 and a battery cell 120, and the battery cell 120 is accommodated in the second box body 110. The second box body 110 is used to provide a storage space for the battery cell 120, and the second box body 110 can adopt a variety of structures. In some embodiments, the second box body 110 may include a first part 111 and a second part 112, and the first part 111 and the second part 112 cover each other, and the first part 111 and the second part 112 jointly define a storage space for accommodating the battery cell 120. The second part 112 may be a hollow structure with one end open, and the first part 111 may be a plate-like structure, and the first part 111 covers the open side of the second part 112, so that the first part 111 and the second part 112 jointly define a storage space; the first part 111 and the second part 112 may also be hollow structures with one side open, and the open side of the first part 111 covers the open side of the second part 112. Of course, the second box body 110 formed by the first part 111 and the second part 112 can be in various shapes, such as a cylinder, a cuboid, etc.

[0061] In the battery 100, there may be multiple battery cells 120, and the multiple battery cells 120 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 120 are both connected in series and in parallel. The multiple battery cells 120 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 120 is accommodated in the second box 110; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells 120 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the second box 110. The battery 100 may also include other structures, for example, the battery 100 may also include a converging component for realizing electrical connection between the multiple battery cells 120.

[0062] Each battery cell 120 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 120 may be cylindrical, flat, rectangular, or in other shapes.

[0063] like Figure 3 As shown, the battery cell 120 may include a housing, an electrode assembly 123 and an electrode terminal. The housing includes a shell 121 and an end cap 122. The shell 121 has an opening, and the end cap 122 closes the opening to isolate the internal environment of the battery cell 120 from the external environment.

[0064] The shell 121 is a component used to cooperate with the end cap 122 to form the internal environment of the battery cell 120, wherein the formed internal environment can be used to accommodate the electrode assembly 123, the electrolyte and other components. The shell 121 and the end cap 122 can be independent components. The shell 121 can be of various shapes and sizes. Specifically, the shape of the shell 121 can be determined according to the specific shape and size of the electrode assembly 123. The material of the shell 121 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc.

[0065] The end cap 122 refers to a component that covers the opening of the shell 121 to isolate the internal environment of the battery cell 120 from the external environment. Without limitation, the shape of the end cap 122 can be adapted to the shape of the shell 121 to match the shell 121. Optionally, the end cap 122 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap 122 is not easily deformed when squeezed and collided, so that the battery cell 120 can have a higher structural strength and reliability can also be improved. Functional components such as electrode terminals can be provided on the end cap 122. The electrode terminal can be used to electrically connect to the electrode assembly 123 for outputting or inputting electrical energy of the battery cell 120. The material of the end cap 122 can also be a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not impose any special restrictions on this. In some embodiments, an insulating structure may be provided inside the end cap 122, and the insulating structure may be used to isolate the electrical connection components in the housing 121 from the end cap 122 to reduce the risk of short circuit. For example, the insulating structure may be plastic, rubber, or the like.

[0066] The electrode assembly 123 is a component in the battery cell 120 where an electrochemical reaction occurs. One or more electrode assemblies 123 may be included in the housing 121. The electrode assembly 123 is mainly formed by winding or stacking the positive electrode sheet and the negative electrode sheet, and a separator is usually provided between the positive electrode sheet and the negative electrode sheet, and the separator is used to separate the positive electrode sheet and the negative electrode sheet to avoid short circuits between the positive electrode sheet and the negative electrode sheet. The parts of the positive electrode sheet and the negative electrode sheet with active materials constitute the main body of the electrode assembly 123, and the parts of the positive electrode sheet and the negative electrode sheet without active materials each constitute the pole ear. The positive pole ear and the negative pole ear may be located at one end of the main body or at both ends of the main body respectively. During the charge and discharge process of the battery 100, the positive active material and the negative active material react with the electrolyte, and the pole ear connects the electrode terminal to form a current loop. In addition, the electrode assembly 123 may be a winding structure or a laminated structure.

[0067] In some embodiments, the battery cell 120 may also be provided with a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 120 reaches a threshold value.

[0068] According to some embodiments of the present application, Figure 4 is a schematic diagram of the structure of the battery device in this application, Figure 5 for Figure 4 Exploded diagram of Figure 6 Schematic diagram of the connection structure between the heat exchanger and the connection block in this application. Figure 4-Figure 6As shown, the present application provides a battery device 400, which includes a first box body 410, a heat exchanger 420 and a connecting block 430, wherein the heat exchanger 420 is arranged in the first box body 410, the heat exchanger 420 is provided with an opening 421, the opening 421 includes a liquid inlet 4211, the connecting block 430 is arranged in the heat exchanger 420, the connecting block 430 is provided with an interface 431, the interface 431 includes a first connecting port 4311, and the first connecting port 4311 is configured to connect the liquid inlet 4211 with the outside; a first sealed cavity 435 is provided in the connecting block 430, the first connecting port 4311 penetrates the first sealed cavity 435 along a first direction, and the first sealed cavity 435 is sealed and connected to the heat exchanger 420 toward one side of the heat exchanger 420; wherein the first direction is the direction of liquid flow in the first connecting port 4311.

[0069] The first direction in this embodiment is as follows Figure 8 The X-axis direction.

[0070] The first box 410 in this embodiment has an open structure on the upper side, and a receiving cavity is formed inside the first box 410, which can be used to accommodate battery cells. The first box 410 can be a rectangular parallelepiped, a cylinder, etc., which can be determined according to actual conditions and is not limited in this embodiment of the specification.

[0071] The heat exchange element 420 in this embodiment can be a water cooling plate, a liquid cooling plate, etc. The specific one can be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0072] In this embodiment, the heat exchanger 420 can be connected to the bottom surface of the first box body 410 by bolts, or the heat exchanger 420 is snap-fitted to the bottom surface of the first box body 410. The specific details can be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0073] The connection block 430 in this embodiment is located outside the first box body 410. The connection block 430 can be welded to the first box body 410, or the connection block 430 is connected to the first box body 410 by bolts. The specific method can be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0074] In this embodiment, the connection block 430 can be welded to the heat exchanger 420, or bonded to the heat exchanger 420. When the connection block 430 is fixed to the heat exchanger 420, one end of the interface 431 facing the opening 421 is sealed with the interface 431, and at this time, the interface 431 is configured to connect the opening 421 with the outside.

[0075] The first connection port 4311 penetrates the first sealed cavity 435 along the X-axis direction, and the side of the first sealed cavity 435 facing the heat exchanger 420 is sealed and connected to the heat exchanger 420, wherein the sealed connection can be brazing, gluing, etc., that is, the side of the first sealed cavity 435 facing the heat exchanger 420 can be connected to the heat exchanger 420 by brazing, gluing, etc.

[0076] After the side of the first sealed cavity 435 facing the heat exchanger 420 is connected to the heat exchanger 420, a sealing structure is formed between the first sealed cavity 435 and the heat exchanger 420. In this way, under the protection of the first sealed cavity 435, even if the sealing between the first connection port 4311 and the liquid inlet 4211 is poor, when the side of the first sealed cavity 435 facing the heat exchanger 420 is sealed to the heat exchanger 420, the sealing between the first connection port 4311 and the liquid inlet 4211 can be ensured.

[0077] In this embodiment, a liquid inlet hole 4211 is provided on the heat exchanger 420, and a first connection port 4311 is provided on the connection block 430. When the connection block 430 is fixed to the heat exchanger 420, one end of the first connection port 4311 facing the liquid inlet hole 4211 is sealed with the liquid inlet hole 4211, and one end of the first connection port 4311 away from the liquid inlet hole 4211 is connected to the outside. The overall device does not need to weld the first connection port 4311 to the heat exchanger 420 separately, and at the same time, it does not need to weld the profile used to fix the adapter 440 on the outside of the first connection port 4311. After the connection block 430 is fixed to the heat exchanger 420, the connection block 430 itself can not only serve as the first connection port 4311, but also as a carrier for fixing the adapter 440, the overall process steps are reduced, and the installation efficiency is high.

[0078] During assembly, since the interface 431 is directly provided on the connection block 430, when the connection block 430 is fixed to the heat exchanger 420, the interface 431 directly connects the opening 421 with the outside, and the overall device does not need to weld the interface 431 to the heat exchanger 420 separately, and at the same time, it is not necessary to weld the profile used to fix the transfer interface 440 on the outside of the interface 431. After the connection block 430 is fixed to the heat exchanger 420, the connection block 430 can not only serve as the interface 431, but also as a carrier for fixing the transfer interface 440, and the overall process steps are reduced, and the installation efficiency is high. At the same time, under the protection of the first sealing cavity 435, even if the sealing between the first connection port 4311 and the liquid inlet 4211 is poor, when the first sealing cavity 435 is sealed with the heat exchanger 420 on the side facing the heat exchanger 420, the sealing between the first connection port 4311 and the liquid inlet 4211 can also be guaranteed.

[0079] According to some embodiments of the present application, Figure 7 Combined with Figure 8 , Fig. 9, Fig.10 , Fig.11 As shown, the opening 421 further includes a liquid outlet 4212 , and the interface 431 further includes a second connection port 4312 , which is configured to connect the liquid outlet 4212 with the outside.

[0080] In this embodiment, a liquid inlet hole 4211 and a liquid outlet hole 4212 are provided on the heat exchanger 420, and a first connection port 4311 and a second connection port 4312 are provided on the connection block 430. When the connection block 430 is fixed to the heat exchanger 420, an end of the first connection port 4311 facing the liquid inlet hole 4211 is sealed with the liquid inlet hole 4211, and an end of the first connection port 4311 away from the liquid inlet hole 4211 is connected to the outside; at the same time, an end of the second connection port 4312 facing the liquid outlet hole 4212 is sealed with the liquid outlet hole 4212, and an end of the second connection port 4312 away from the liquid outlet hole 4212 is connected to the outside.

[0081] The overall device does not need to weld the first connection port 4311 and the second connection port 4312 to the heat exchanger 420 separately, and at the same time, it does not need to weld the profile used to fix the adapter 440 outside the first connection port 4311 and the second connection port 4312. After the connection block 430 is fixed to the heat exchanger 420, the connection block 430 itself can not only serve as the first connection port 4311 and the second connection port 4312, but also as a carrier for fixing the adapter 440, so the overall process steps are reduced and the installation efficiency is high.

[0082] According to some embodiments of the present application, Fig. 9 Combined with Figure 8 , Figure 7 As shown, a second sealed cavity 436 is further provided in the connection block 430 ; the second connection port 4312 penetrates the second sealed cavity 436 along the first direction, and the second sealed cavity 436 is sealedly connected to the heat exchange element 420 on one side facing the heat exchange element 420 .

[0083] The first direction in this embodiment is as follows Figure 8 The X-axis direction.

[0084] In this embodiment, a first sealed cavity 435 may be provided in the connection block 430, or a second sealed cavity 436 may be provided in the connection block 430, or a first sealed cavity 435 and a second sealed cavity 436 may be provided in the connection block 430. For the sake of convenience, the following description will be given by taking the example that both the first sealed cavity 435 and the second sealed cavity 436 are provided in the connection block 430.

[0085] In this embodiment, the first sealed cavity 435 and the second sealed cavity 436 are independent of each other. The first connection port 4311 penetrates the first sealed cavity 435 along the X-axis direction, and the first sealed cavity 435 is sealed and connected to the heat exchanger 420 on the side facing the heat exchanger 420; the second connection port 4312 penetrates the second sealed cavity 436 along the X-axis direction, and the second sealed cavity 436 is sealed and connected to the heat exchanger 420 on the side facing the heat exchanger 420.

[0086] The sealing connection in this embodiment can be brazing, gluing, etc., that is, the side of the first sealing cavity 435 facing the heat exchanger 420 can be connected to the heat exchanger 420 by brazing, gluing, etc., and the side of the second sealing cavity 436 facing the heat exchanger 420 can be connected to the heat exchanger 420 by brazing, gluing, etc.

[0087] After the first sealed cavity 435 is connected to the heat exchanger 420 on the side facing the heat exchanger 420, a sealed structure is formed between the first sealed cavity 435 and the heat exchanger 420. After the second sealed cavity 436 is connected to the heat exchanger 420 on the side facing the heat exchanger 420, a sealed structure is also formed between the second sealed cavity 436 and the heat exchanger 420.

[0088] Thus, under the protection of the first sealed cavity 435, even if the first connection port 4311 and the liquid inlet hole 4211 are not well sealed, when the first sealed cavity 435 is sealed with the heat exchanger 420 on the side facing the heat exchanger 420, the sealing between the first connection port 4311 and the liquid inlet hole 4211 can be ensured. Similarly, under the protection of the second sealed cavity 436, the sealing between the second connection port 4312 and the liquid outlet hole 4212 can also be ensured.

[0089] According to some embodiments of the present application, the liquid inlet 4211 is sealedly connected to the first connection port 4311 , and / or the liquid outlet 4212 is sealedly connected to the second connection port 4312 .

[0090] In this embodiment, the liquid inlet 4211 can be sealed with the first connection port 4311 by brazing, or the liquid inlet 4211 and the first connection port 4311 are snap-fitted, and a sealing ring is provided between the liquid inlet 4211 and the first connection port 4311. Similarly, the sealing structure between the liquid outlet 4212 and the second connection port 4312 can also refer to the sealing structure between the liquid inlet 4211 and the first connection port 4311, which will not be described in detail here.

[0091] Since the liquid inlet hole 4211 and the first connecting port 4311 are sealed together, and the liquid outlet hole 4212 and the second connecting port 4312 are sealed together, the sealing between the liquid inlet hole 4211 and the first connecting port 4311 can be improved, and at the same time, the sealing between the liquid outlet hole 4212 and the second connecting port 4312 can be improved.

[0092] According to some embodiments of the present application, Fig. 9 As shown, a welding surface 437 is provided on one side of the connection block 430 facing the heat exchanger 420. In this way, the connection block 430 and the heat exchanger 420 can be welded together conveniently through the welding surface 437.

[0093] According to some embodiments of the present application, Figure 5 As shown, a welding portion 411 is provided on the first box body 410 , and when the connecting block 430 is provided on the heat exchange element 420 , the connecting block 430 abuts against the welding portion 411 .

[0094] The welding portion 411 in this embodiment may be integrally formed with the first box body 410, and the welding portion 411 may be a protruding portion of the first box body 410. When the connection block 430 abuts against the welding portion 411, the connection block 430 and the welding portion 411 may be welded together by brazing.

[0095] According to some embodiments of the present application, Figure 6 Combined with Figure 7 , Figure 8 As shown, the battery device further includes a transfer port 440 , which is disposed at one end of the interface 431 away from the hole 421 .

[0096] In this embodiment, a transfer interface 440 is provided on the interface 431 , thereby facilitating the connection between an external pipeline and the interface 431 .

[0097] According to some embodiments of the present application, Figure 8 As shown, a threaded hole 432 is provided on the side of the connection block 430 facing away from the heat exchange element 420 .

[0098] In this way, after the adapter 440 is installed on the interface 431, the adapter 440 can be quickly fixed to the connecting block 430 by passing the bolts through the screw holes and threaded holes on the adapter 440 in sequence.

[0099] Of course, it is understandable that the adapter 440 can also be snapped onto the connection block 430 , and the specific connection can be determined based on actual conditions, and the embodiments of this specification do not limit this.

[0100] According to some embodiments of the present application, Figure 8 As shown, an extension portion 433 is provided on the side of the connection block 430 , and a mounting hole 434 is provided on the extension portion 433 ; when the connection block 430 is disposed on the heat exchanger 420 , the extension portion 433 is at least partially located outside the heat exchanger 420 .

[0101] The extension portion 433 in this embodiment can be integrally formed with the connection block 430 . The extension portion 433 can be a plate structure, one side of which is connected to the side of the connection block 430 , and the plate structure extends outward away from one side of the connection block 430 .

[0102] When the connection block 430 is fixed to the heat exchanger 420, the extension portion 433 is at least partially located outside the heat exchanger 420, and the mounting hole 434 is located on the extension portion 433 outside the heat exchanger 420. In this way, the connection block 430 is conveniently fixed to the vehicle by passing the bolts through the mounting hole 434 and then connecting to the vehicle.

[0103] The present application also provides an electrical device, comprising a battery device as described in any one of the embodiments of the present application.

[0104] The specific structure of the battery device in this embodiment refers to the above embodiment. Since all the technical solutions of all the above embodiments are adopted in this electrical device, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery device, characterized in that: include: The first box; A heat exchange element, the heat exchange element is arranged in the first box body, the heat exchange element is provided with an opening, and the opening includes a liquid inlet; A connecting block, the connecting block is arranged on the heat exchange element, the connecting block is provided with an interface, the interface includes a first connecting port, and the first connecting port is configured to connect the liquid inlet hole with the outside; A first sealed cavity is provided in the connection block, the first connection port penetrates the first sealed cavity along a first direction, and the first sealed cavity is sealedly connected to the heat exchange element on one side facing the heat exchange element, wherein the first direction is the direction of liquid flow in the first connection port.

2. The battery device according to claim 1, characterized in that: The opening further includes a liquid outlet, and the interface further includes a second connection port; The second connection port is configured to connect the liquid outlet with the outside.

3. The battery device according to claim 2, characterized in that: A second sealed cavity is also provided in the connection block; The second connecting port penetrates the second sealed cavity along the first direction, and the second sealed cavity is sealedly connected to the heat exchange element at one side facing the heat exchange element.

4. The battery device according to claim 3, characterized in that: The liquid inlet is sealedly connected to the first connection port, and / or, The liquid outlet is sealed and connected to the second connection port.

5. The battery device according to claim 1, characterized in that: A welding surface is provided on a side of the connection block facing the heat exchange element.

6. The battery device according to any one of claims 1 to 5, characterized in that: The first box body is provided with a welding portion, and when the connecting block is provided on the heat exchange element, the connecting block abuts against the welding portion.

7. The battery device according to any one of claims 1 to 5, characterized in that: The battery device further comprises a transfer port, and the transfer port is arranged at an end of the interface away from the opening.

8. The battery device according to claim 7, characterized in that: A threaded hole is arranged on a side of the connection block away from the heat exchange element.

9. The battery device according to any one of claims 1 to 5, characterized in that: An extension portion is provided on the side of the connecting block, and a mounting hole is provided on the extension portion; Under the condition that the connecting block is arranged on the heat exchange element, the extending portion is at least partially located outside the heat exchange element.

10. An electrical device, characterized in that: Comprising the battery device according to any one of claims 1 to 9.

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