Battery device and electric equipment

Abstract

The utility model discloses a battery device and electric equipment, and relates to the technical field of batteries, the battery device comprises a box body, a battery monomer, a circuit board assembly and an output connector, the box body is provided with an accommodating cavity; the battery monomers are arranged in the accommodating cavities; the circuit board assembly comprises a sampling board and an adapter board, and the sampling board is used for being electrically connected with the battery monomers; the adapter plate is electrically connected with the sampling plate; the output connector is arranged on the adapter plate and is electrically connected with the adapter plate; wherein the sampling board is a single-sided board, and a first circuit layer is arranged on one side of the sampling board; the adapter plate is a double-sided plate, and second circuit layers are arranged on the two sides of the adapter plate. By adopting the mode of combining the sampling plate and the adapter plate, the design distance can be increased and the manufacturing cost can be reduced by adopting a single-sided plate design on the sampling plate, and the problem of wiring intersection can be improved by adopting a double-sided plate design on the adapter plate, so that sampling signals of the single batteries can be collected and transmitted.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device and electrical equipment. Background Technology

[0002] The battery device includes a housing and a circuit board. The housing has a cavity containing individual battery cells. The circuit board is electrically connected to the battery cells to acquire and transmit sampling signals such as voltage and temperature from the battery cells. The circuit board is also connected to an output connector to transmit the sampling signals to a battery monitoring module. However, in the current situation, the selection of the circuit board remains a difficult problem for those skilled in the art, as it is difficult to find a good balance between cost and effectiveness. Utility Model Content

[0003] The main objective of this application is to provide a battery device and electrical equipment that aims to at least improve the technical problem of battery device circuit boards struggling to balance cost and performance.

[0004] According to some embodiments of this application, this application provides a battery device, including...

[0005] The device comprises a housing, individual battery cells, a circuit board assembly, and an output connector. The housing has a receiving cavity; the individual battery cells are disposed within the receiving cavity; the circuit board assembly includes a sampling board and an adapter board, the sampling board being electrically connected to the individual battery cells; the adapter board being electrically connected to the sampling board; and the output connector being disposed on and electrically connected to the adapter board. The sampling board is a single-sided panel with a first circuit layer on one side; the adapter board is a double-sided panel with a second circuit layer on both sides.

[0006] By combining a sampling board and an adapter board, the sampling board adopts a single-sided design, which allows for a longer single-sided board and reduces manufacturing costs. The adapter board adopts a double-sided design, which can improve the wiring crossover problem and realize the acquisition and transmission of sampling signals.

[0007] In some embodiments, the sampling board is provided with a connector electrically connected to the first circuit layer, and the adapter board is provided with a connector electrically connected to at least one second circuit layer. The connector and the connector are plugged in and engaged, and the sampling board and the adapter board are electrically connected through the connector and the connector.

[0008] By setting up connectors and terminals, the sampling board and adapter board can be electrically connected through the movable connection of the connectors and terminals. When functional failure analysis or test analysis is required, the connectors and terminals can be separated to analyze the sampling board and adapter board separately, which facilitates problem analysis and troubleshooting and reduces the risk of product damage.

[0009] In some embodiments, the circuit board assembly further includes a surface mount connector that electrically connects the sampling board and the adapter board.

[0010] By using surface mount connectors, which are electrically connected to the sampling board and the adapter board respectively, the manufacturing process is simple.

[0011] In some embodiments, the circuit board assembly further includes a first support plate, and the adapter plate is disposed on one side of the first support plate.

[0012] By setting up the first support plate, an installation surface is provided for the sampling plate and the adapter plate, which serves as a support.

[0013] In some embodiments, the circuit board assembly further includes a second support plate disposed on the side of the adapter plate opposite to the first support plate, and the output connector passes through the first support plate and the adapter plate in sequence and is connected to the second support plate.

[0014] By setting a second support plate, it can be fixedly connected to the output connector, thus providing support for the output connector.

[0015] In some embodiments, the second support plate is provided with a through hole, and the output connector extends into the through hole and is bonded to the second support plate.

[0016] The pins of the output connector are glued and fixed by the second support plate, thereby realizing the installation and fixation of the output connector. The operation is simple and convenient.

[0017] In some embodiments, the output connector is a wave soldering connector.

[0018] By setting the output connector to include a wave soldering connector, the sampling signal can be transmitted to the battery monitoring module through the wave soldering connector, thereby realizing the transmission and monitoring of the sampling signal.

[0019] In some embodiments, the battery device further includes a battery monitoring module, which has an input connector and an output connector that are plugged into each other. The battery monitoring module and the adapter board are electrically connected through the input connector and the output connector.

[0020] By setting up a battery monitoring module and an input connector, the battery monitoring module and the adapter board are electrically connected through the input connector and the output connector, which enables the transmission and monitoring of sampling signals.

[0021] In some embodiments, the sampling board includes a board body and a conductive element disposed on the board body, the board body having the first circuit layer disposed thereon, and the conductive element being electrically connected to the first circuit layer.

[0022] The battery device further includes a busbar electrically connected to the electrode terminals of the battery cell, and the conductive element is electrically connected to the busbar.

[0023] By setting up a sampling board including a board body and conductive components, a first circuit layer is provided on one side of the board body. The first circuit layer is electrically connected to the conductive components, and the conductive components are electrically connected to the busbars. The sampling signal is transmitted to the adapter board and the battery monitoring module through the conductive components, thereby realizing the acquisition and monitoring of voltage signals.

[0024] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the vehicle structure according to some embodiments of this application;

[0027] Figure 2 This is an exploded view of the battery device according to some embodiments of this application;

[0028] Figure 3 This is a partial perspective structural diagram of a battery device according to some embodiments of this application;

[0029] Figure 4 for Figure 3 A schematic diagram of the decomposed structure;

[0030] Figure 5 This is a schematic diagram of the structure of the battery device sampling board and connector in some embodiments of this application;

[0031] Figure 6 This is a schematic diagram of the structure of the adapter plate, plug-in terminal, first support plate, second support plate and output connector of the battery device according to some embodiments of this application;

[0032] Figure 7 This application includes a partial perspective structural schematic diagram of a battery device according to some embodiments;

[0033] Figure 8 for Figure 7A schematic diagram of its decomposed structure.

[0034] Explanation of icon numbers:

[0035] 1000, vehicles;

[0036] 100. Battery assembly; 200. Controller; 300. Motor;

[0037] 10. Box body; 11. Top cover; 12. Box body;

[0038] 20. Battery cell;

[0039] 1. Busbar; 2. Second support plate; 3. Sampling plate; 31. Board body; 32. Conductive component; 4. Adapter plate; 5. Output connector; 51. Wave soldering connector; 6. Surface mount connector; 7. Plug-in component; 8. Plug-in end; 81. Plug-in interface; 9. First support plate.

[0040] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are feasible to those skilled in the art. If a combination of technical solutions contradicts each other or cannot be implemented, it should be considered that such a combination does not exist and is not within the scope of protection claimed in this application. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0046] The descriptions of directions such as "up", "down", "front", "back", "left", and "right" in this application are based on the directions shown in the accompanying drawings and are only used to explain the relative positional relationships between the components in the posture shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0047] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0048] The battery device includes a housing and a circuit board. The housing has a receiving cavity, in which individual battery cells are placed. The circuit board is electrically connected to the individual battery cells to acquire and transmit sampling signals such as voltage and temperature signals of the individual battery cells. The circuit board is also connected to an output connector to transmit the sampling signals to the battery management module.

[0049] However, under the current circumstances, the selection of circuit boards remains a difficult problem for those skilled in the art, as it is difficult to find a good balance between cost and effectiveness.

[0050] After careful research, the applicant discovered that while single-sided circuit boards (with circuit layers printed on only one side) are possible, they are prone to circuit crossings, posing a risk of continuity failure. Further research revealed that double-sided circuit boards (with circuit layers printed on both sides) have higher manufacturing costs and, due to process limitations, can only be produced in limited lengths to meet mass production demands. Therefore, current manufacturing methods necessitate a trade-off between single-sided and double-sided boards.

[0051] To address this, the applicant provides a battery device comprising a housing, individual battery cells, a circuit board assembly, and an output connector. The housing has a receiving cavity; the individual battery cells are housed within the receiving cavity; the circuit board assembly includes a sampling board and an adapter board. The sampling board is used for electrical connection with multiple individual battery cells; the adapter board is electrically connected to the sampling board and the output connector. The sampling board is a single-sided board with a first circuit layer on one side; the adapter board is a double-sided board with a second circuit layer on both sides. By combining single-sided and double-sided designs, the single-sided design of the sampling board increases the design distance and reduces manufacturing costs, while the double-sided design of the adapter board improves wiring crossover issues, enabling the acquisition and transmission of sampling signals from individual battery cells.

[0052] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The electrical equipment can be the vehicle 1000, which can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the 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 device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0053] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0054] Please refer to Figure 2 , Figure 2This is an exploded structural diagram of a battery device 100 provided in some embodiments of this application. The battery device 100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a space for the battery cell 20 and can have various structures. In some embodiments, the housing 10 may include a top cover 11 and a housing body 12, with the top cover 11 and housing body 12 overlapping each other, jointly defining a space for accommodating the battery cell 20. The housing body 12 may be a hollow structure with one open end, and the top cover 11 may be a plate-like structure, fitting over the open side of the housing body 12 so that the top cover 11 and housing body 12 jointly define the space; alternatively, the top cover 11 and housing body 12 may both be hollow structures with one open side, with the open side of the top cover 11 fitting over the open side of the housing body 12. Of course, the housing 10 formed by the top cover 11 and housing body 12 can have various shapes, such as a cylinder, a cuboid, etc.

[0055] The battery device 100 mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells 20, which are connected in series, parallel, or mixed connections via a busbar.

[0056] In some embodiments, the battery cell assembly is typically formed by arranging a plurality of battery cells 20.

[0057] As an example, the battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells 20 into a single module. As an example, the battery module can be formed by bundling multiple battery cells 20 together with cable ties.

[0058] In some embodiments, the battery device 100 may be a battery pack, which includes a housing 10 and one or more battery cell assemblies housed in the housing 10.

[0059] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be housed in the housing 10 by fixing the battery module in the housing 10.

[0060] As an example, the battery cell assembly can also be housed in the housing 10 by directly fixing multiple battery cells 20 to the housing 10.

[0061] In the battery device 100, there can be multiple battery cells 20, which can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 20 are connected in both series and parallel connections. Multiple battery cells 20 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 20 is housed within the housing 10. Alternatively, the battery device 100 can also consist of multiple battery cells 20 first connected in series, parallel, or in a mixed configuration to form battery modules, and then these battery modules are connected in series, parallel, or in a mixed configuration to form a whole, which is also housed within the housing 10. The battery device 100 may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 20.

[0062] Each battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 20 can be cylindrical, flat, cuboid, or other shapes.

[0063] Reference Figure 3 and Figure 4 According to some embodiments of this application, this application provides a battery device 100, including a housing 10, a battery cell 20, a circuit board assembly, and an output connector 5. The housing 10 is provided with a receiving cavity; the battery cell 20 is disposed in the receiving cavity; the circuit board assembly includes a sampling board 3 and an adapter board 4. The sampling board 3 is used for electrical connection with the battery cell 20; the adapter board 4 is electrically connected to the sampling board 3; the output connector 5 is disposed on the adapter board 4 and electrically connected to the adapter board 4; wherein, the sampling board 3 is a single-sided panel, and a first circuit layer is provided on one side of the sampling board 3; the adapter board 4 is a double-sided panel, and a second circuit layer is provided on both sides of the adapter board 4.

[0064] The housing 10 refers to the outer casing of the battery device 100. The housing 10 has a receiving cavity, within which battery cells 20 are disposed. Each battery cell 20 is also called a battery cell, and there can be multiple battery cells 20 arranged in a specific manner. The output connector 5 can be any type of connector or electrical connector, primarily used to transmit the sampling signals from the circuit board assembly to the battery monitoring module. This battery monitoring module can be a CSC (Cell Supervision Circuit) to monitor the voltage and temperature parameters of each battery cell 20.

[0065] The circuit board assembly of this application includes a sampling board 3 and an adapter board 4. The sampling board 3 is a single-sided board, meaning that only one side has circuitry, and the other side does not. The sampling board 3 is electrically connected to the multiple battery cells 20 and the adapter board 4 through the side with the first circuit layer. The sampling board 3 can extend along the arrangement direction of the multiple battery cells 20. The sampling board 3 is used to electrically connect with the multiple battery cells 20 to collect the sampling signals of the multiple battery cells 20 and transmit the sampling signals to the adapter board 4.

[0066] The adapter board 4 is a double-sided board, meaning that circuit layers are set on both sides of the adapter board 4. To distinguish it from single-sided boards, it is referred to here as the second circuit layer. The double-sided board allows for 3D spatial routing, enabling free vertical routing and improving the problem of crossover. The sampling signal collected by the sampling board 3 is transmitted to the output connector 5 through the adapter board 4, and then transmitted to the battery monitoring module of the battery device 100 through the output connector 5, completing the transmission of electrical signals and realizing the sampling, transmission, and monitoring functions of the battery cell 20. Generally speaking, double-sided boards are not only expensive, but also difficult to manufacture in long lengths due to process limitations. Single-sided boards, on the other hand, are designed to be longer, extending along the arrangement direction of the battery cells 20 and then electrically connected to the adapter board 4, allowing the adapter board 4 to be designed to be shorter.

[0067] By combining sampling board 3 and adapter board 4, sampling board 3 adopts a single-sided design, which allows for a longer length and reduces manufacturing costs. Adapter board 4 adopts a double-sided design, which can improve wiring crossover issues and realize the acquisition and transmission of sampling signals from battery cells 20.

[0068] Furthermore, it should be noted that in some projects, the installation space for some battery monitoring modules is not convenient for direct connection of the sampling board 3. This embodiment uses an adapter board 4 to transfer the wiring to the required location, which is particularly suitable for situations with limited installation space. This embodiment uses a single-sided board for the sampling board 3 to perform the sampling function. Only a shorter adapter board 4 is needed to achieve signal acquisition and transmission functions, reducing the manufacturing difficulty and increasing the stability of the manufacturing process.

[0069] Reference Figure 4 and Figure 5 In some embodiments, the sampling plate 3 includes a plate body 31 and a conductive element 32 disposed on the plate body 31. A first circuit layer is disposed on the plate body 31, and the conductive element 32 is electrically connected to the first circuit layer. The battery device 100 also includes a busbar 1 electrically connected to the electrode terminals of the battery cell 20, and the conductive element 32 is electrically connected to the busbar 1.

[0070] Here, the sampling board 3 can be a flexible circuit board with a first circuit layer on one side. The board body 31 refers to the substrate of the flexible circuit board. The conductive element 32 can be a metal sheet with conductive properties, such as a nickel sheet. Wiring layers are provided inside the substrate, and these wiring layers form the first circuit layer and are electrically connected to the nickel sheet. The electrode terminal refers to the positive or negative output terminal of the battery. A busbar 1 is electrically connected to the electrode terminal of the battery cell 20. The busbar 1 can be made of copper or aluminum. A copper busbar 1 can also be called a copper bar. The nickel sheet is connected to the busbar 1 to acquire voltage signals and transmit them to the board body 31. The signals are then transmitted through the board body 31 to the adapter board 4, which is electrically connected to the board body 31, and then through the output connector 5 to the battery monitoring module to realize the acquisition and monitoring of voltage signals.

[0071] By setting up a sampling board 3 including a board body 31 and a conductive element 32, a first circuit layer is provided on one side of the board body 31. The first circuit layer is electrically connected to the conductive element 32, and the conductive element 32 is electrically connected to the busbar 1, so as to collect the sampling signal of the battery cell 20 and transmit it to the adapter board 4 and the battery monitoring module through the board body 31 to realize the acquisition and monitoring of voltage signals.

[0072] Reference Figure 4 and Figure 5 In some embodiments, multiple conductive elements 32 are provided on both sides along the length of the plate body 31, and the number of busbars 1 is equal to the number of conductive elements 32 and they are provided in a one-to-one correspondence.

[0073] Length direction as Figure 3 The direction indicated by X. The busbar 1 is electrically connected to the electrode terminals of the battery cell 20. Generally, the busbar 1 is located on top of the battery cell 20. The board body 31 is a substrate. The battery cells 20 can include multiple rows. The board body 31 extends along the arrangement direction of multiple battery cells 20 in a row; the length direction is the same as the arrangement direction of the battery cells 20 in a row. The board body 31 is located above two adjacent rows of battery cells 20. The conductive element 32 can be a nickel sheet electrically connected to the first circuit layer of the board body 31. The conductive elements 32 are respectively disposed on both sides of the board body 31 along the arrangement direction of the battery cells. By electrically connecting to the busbars 1 on both sides, the sampling signal can be transmitted. Furthermore, using one board body 31 can achieve the acquisition of sampling signals from two rows of battery cells 20, reducing the number of components in the board body 31, simplifying the manufacturing process, and reducing the space occupied inside the housing 10.

[0074] By providing conductive elements 32 on both sides along the length of the board body 31, and electrically connecting the conductive elements 32 to the battery cell 20 through the busbar 1, the number of board bodies 31 used can be reduced, the manufacturing steps can be simplified, and the space occupied inside the box 10 can be reduced.

[0075] Reference Figures 4-6 In some embodiments, the sampling board 3 is provided with a connector 7 electrically connected to the first circuit layer, and the adapter board 4 is provided with a connector 8 electrically connected to at least one second circuit layer. The sampling board 3 and the adapter board 4 are electrically connected through the connector 7 and the connector 8.

[0076] The connector 7 and the connector end 8 can be two parts of a connector. One part includes the connector 7, which is electrically connected to the first circuit layer. Specifically, the connector 7 can be surface-mounted and soldered onto the first circuit layer. The other part includes the connector end 8, which has a connector interface 81. The connector end 8 is electrically connected to at least one second circuit layer on the adapter board 4. When the connector 7 is inserted into the connector interface 81, the electrical connection between the sampling board 3 and the adapter board 4 is achieved through the electrical connection between the connector 7 and the connector interface 81. Alternatively, the connector 7 can have a socket, and the connector end 8 can connect to the socket on the connector 7. The connector 7 can be located on the top surface of the sampling board 3, which refers to the side of the sampling board 3 facing away from the battery cell 20. The first circuit layer is also located on the top surface. The connector end 8 can also be located on the top surface of the adapter board 4, which facilitates the insertion and mating of the connector interface 81 of the connector 7 and the connector end 8. This connector can be a vertical connector or a horizontal connector. The connector 7 and the connector 8 are detachably connected. In related technologies, when product malfunctions or during testing and analysis, the circuit board and battery monitoring module must be separated. However, due to the difficulty in plugging and unplugging the battery monitoring module socket and its susceptibility to damage, testing is not only inefficient but may also damage the battery monitoring module socket or circuit board. This embodiment electrically connects the sampling board 3 and the adapter board 4 via the movable connector 7 and connector 81. When testing and analysis are required, the sampling board 3 and the adapter board 4 can be separated and analyzed in two parts, achieving the purpose of analysis while reducing the risk of product damage.

[0077] By setting up connector 7 and connector 8, the sampling board 3 and adapter board 4 can be electrically connected through the movable connection of connector 7 and connector 8. When functional failure analysis or test analysis is required, connector 7 can be separated from connector 8, and sampling board 3 and adapter board 4 can be analyzed separately, which facilitates analysis and troubleshooting and reduces the risk of product damage.

[0078] Reference Figure 7 or Figure 8 In some embodiments, the circuit board assembly further includes a surface mount connector 6, which electrically connects the sampling board 3 and the adapter board 4.

[0079] The surface mount connector 6 can be mounted on both the adapter board 4 and the sampling board 3, serving the same function of electrically connecting the sampling board 3 and the adapter board 4. In specific manufacturing, one end of the surface mount connector 6 can be first mounted on the sampling board 3 using surface mount technology to achieve electrical connection with the sampling board 3, and then the other end of the surface mount connector 6 can be mounted on the adapter board 4 to achieve electrical connection with the adapter board 4; or one end of the surface mount connector 6 can be first mounted on the adapter board 4 using surface mount technology to achieve electrical connection with the adapter board 4, and then the other end of the surface mount connector 6 can be mounted on the sampling board 3 to achieve electrical connection with the sampling board 3.

[0080] By using a surface mount connector 6, which is electrically connected to the sampling board 3 and the adapter board 4 respectively, the manufacturing method is simple.

[0081] Reference Figure 7 or Figure 8 In some embodiments, the circuit board assembly further includes a first support plate 9, and an adapter plate 4 is disposed on one side of the first support plate 9.

[0082] The first support plate 9, also known as a reinforcing plate or mounting plate, is generally plate-shaped and does not have a circuit layer. The adapter plate 4 is located on one side of the first support plate 9. The first support plate 9 provides a mounting surface for the adapter plate 4. Alternatively, the sampling plate 3 can be partially mounted on the first support plate 9. The first support plate 9 prevents the sampling plate 3 and the adapter plate 4 from being suspended in mid-air, reducing the risk of separation due to gravity or vibration. It should be noted that, referring to… Figure 6 Not only can the first support plate 9 be provided in the embodiment of the patch connector 6, but the first support plate 9 can also be provided to support the adapter plate 4 in the embodiment of the plug-in 7 and the plug interface 81.

[0083] By setting the first support plate 9, an installation surface is provided for the adapter plate 4, which serves as a support.

[0084] In some embodiments, the circuit board assembly further includes a second support plate 2, which is disposed on the side of the adapter plate 4 opposite to the first support plate 9. The output connector 5 passes through the first support plate 9 and the adapter plate 4 in sequence and is connected to the second support plate 2.

[0085] The first support plate 9 and the second support plate 2 are respectively disposed on both sides of the adapter plate 4, which can hold the adapter plate 4 in place and fix it, reducing the shaking of the adapter plate 4. Specifically, the second support plate 2 can be located on the top surface of the adapter plate 4, and the first support plate 9 can be located on the bottom surface of the adapter plate 4. The output connector 5 passes through the first support plate 9 and the adapter plate 4 in sequence from the first support plate 9, and is fixedly connected to the second support plate 2. At the same time, the pins of the output connector 5 pierce the surface layer of the printed circuit board of the adapter plate 4 to achieve electrical connection with the adapter plate 4.

[0086] By setting the second support plate 2, it can be fixedly connected to the output connector 5, and play a supporting role for the output connector 5.

[0087] In some embodiments, the second support plate 2 is provided with a through hole, and the output connector 5 extends into the through hole and is bonded to the second support plate 2.

[0088] A through hole can be provided on the second support plate 2. The pins of the output connector 5 extend through the adapter plate 4 to the position of the through hole. Then, the pins are glued into the through hole with solid glue to realize the connection of the output connector 5 on the second support plate 2.

[0089] The pins of the output connector 5 are fixed by adhesive bonding with the second support plate 2, thereby realizing the installation and fixation of the output connector 5. The operation is simple and convenient.

[0090] Reference Figure 6 or Figure 7 or Figure 8 In some embodiments, the output connector 5 includes a wave soldering connector 51.

[0091] The wave soldering connector 51 can transmit the sampling signal to the battery monitoring module, which is also known as the battery monitoring module. It should be noted that this application does not specifically limit the type and number of output connectors 5; the wave soldering connector 51 and the battery monitoring module are only one feasible embodiment. Those skilled in the art can also set other types of connectors and connect them to other functional modules within the battery device 100, depending on actual needs. In some other embodiments, the sampling board 3 of the circuit board assembly can also be used to collect other parameters, such as temperature or current parameters.

[0092] By setting the output connector 5 to include a wave soldering connector 51, the sampling signal can be transmitted to the battery monitoring module through the wave soldering connector 51, thereby realizing the transmission and monitoring of the sampling signal.

[0093] In some embodiments, the battery device 100 further includes a battery monitoring module, which has an input connector and an output connector 5 that are plugged into each other. The battery monitoring module and the adapter board 4 are electrically connected through the input connector and the output connector 5.

[0094] The input connector and the output connector 5 are plugged together to transmit electrical signals. In this way, the signal collected from the sampling board 3 can be transmitted to the electrically connected adapter board 4. The adapter board 4 transmits the signal to the input connector through the output connector 5, and then to the battery monitoring module through the input connector.

[0095] By setting up a battery monitoring module and an input connector, the battery monitoring module and the adapter board 4 are electrically connected through the input connector and the output connector 5, which enables the transmission and monitoring of sampling signals.

[0096] According to some embodiments of this application, this application provides a battery device 100, including a housing 10, a battery cell 20, a circuit board assembly, and an output connector 5. The housing 10 is provided with a receiving cavity; the battery cell 20 is disposed in the receiving cavity; the circuit board assembly includes a sampling board 3, an adapter board 4, and a first support board 9. The sampling board 3 is a single-sided board, and a first circuit layer is provided on one side of the sampling board 3; the adapter board 4 is a double-sided board, and a second circuit layer is provided on both sides of the adapter board 4. The sampling board 3 includes a board body 31 and a plurality of conductive elements 32 disposed on both sides along the length direction of the board body 31. The first circuit layer is disposed on the board body 31, and the conductive elements 32 are electrically connected to the first circuit layer; the sampling board 3 is provided with a plug 7 electrically connected to the first circuit layer, and the adapter board 4 is provided with a plug end 8 electrically connected to at least one second circuit layer. The sampling board 3 and the adapter board 4 are electrically connected through the plug 7 and the plug end 8. The circuit board assembly also includes a first support plate 9 and a second support plate 2. The adapter plate 4 is disposed on one side of the first support plate 9, and the second support plate 2 is disposed on the side of the adapter plate 4 opposite to the first support plate 9. The second support plate 2 has a through hole. The output connector 5 passes sequentially through the first support plate 9 and the adapter plate 4, and extends to the through hole to be bonded to the second support plate 2. The output connector 5 includes a wave soldering connector 51. The battery device 100 also includes a battery monitoring module. The battery monitoring module has an input connector, which is plugged into the output connector 5. The battery monitoring module and the adapter plate 4 are electrically connected through the input connector and the output connector 5. By combining the sampling board 3 and the adapter plate 4, the sampling board 3, with its single-sided design, can increase the design distance and reduce manufacturing costs. The adapter plate 4, with its double-sided design, can improve wiring crossover issues, enabling the acquisition and transmission of sampling signals from the battery cells 20. This reduces process difficulty and increases process stability, making it particularly suitable for situations with limited installation space.

[0097] According to some embodiments of this application, this application provides an electrical device, which includes a device body and the aforementioned battery device 100, wherein the battery device 100 is disposed on the device body. The aforementioned electrical device may be a vehicle 1000. Since the electrical device includes any of the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought by any of the above technical solutions, which will not be elaborated upon here.

[0098] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the content of the specification and drawings of this application under the concept of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A battery device, characterized in that, include: The housing has a receiving cavity; A battery cell, wherein the battery cell is disposed within the receiving cavity; A circuit board assembly, the circuit board assembly including a sampling board and an adapter board, the sampling board being electrically connected to the battery cell, and the adapter board being electrically connected to the sampling board; as well as An output connector is disposed on the adapter board and electrically connected to the adapter board; The sampling board is a single-sided board with a first circuit layer on one side; the adapter board is a double-sided board with a second circuit layer on both sides.

2. The battery device as claimed in claim 1, characterized in that, The sampling board is provided with a connector electrically connected to the first circuit layer, and the adapter board is provided with a connector electrically connected to at least one second circuit layer. The connector and the connector are plugged in and engaged, and the sampling board and the adapter board are electrically connected through the connector and the connector.

3. The battery device as claimed in claim 1, characterized in that, The circuit board assembly also includes a surface mount connector that electrically connects the sampling board and the adapter board.

4. The battery device according to any one of claims 1-3, characterized in that, The circuit board assembly also includes a first support plate, and the adapter plate is disposed on one side of the first support plate.

5. The battery device as claimed in claim 4, characterized in that, The circuit board assembly further includes a second support plate, which is disposed on the side of the adapter plate opposite to the first support plate. The output connector passes through the first support plate and the adapter plate in sequence and is connected to the second support plate.

6. The battery device as claimed in claim 5, characterized in that, The second support plate is provided with a through hole, and the output connector extends into the through hole and is bonded to the second support plate.

7. The battery device according to any one of claims 1-3, characterized in that, The output connector is a wave soldering connector.

8. The battery device according to any one of claims 1-3, characterized in that, The battery device also includes a battery monitoring module, which has an input connector and an output connector that are plugged into each other. The battery monitoring module and the adapter board are electrically connected through the input connector and the output connector.

9. The battery device as claimed in any one of claims 1-3, characterized in that, The sampling board includes a board body and a conductive element disposed on the board body. The board body is provided with the first circuit layer, and the conductive element is electrically connected to the first circuit layer. The battery device further includes a busbar electrically connected to the electrode terminals of the battery cell, and the conductive element is electrically connected to the busbar.

10. An electrical appliance, characterized in that, The electrical equipment includes a device body and a battery device according to any one of claims 1-9, wherein the battery device is disposed on the device body.

Images