An energy storage power supply

Abstract

The utility model belongs to the energy storage technical field discloses a kind of energy storage power supply, energy storage power supply includes shell, electric core module and circuit board module, electric core module is installed in shell, circuit board module is installed in electric core module top, circuit board module includes multiple circuit boards, multiple circuit boards are spaced apart;Two adjacent circuit boards are electrically connected by inserting terminal, and multiple circuit boards are connected with shell and / or electric core module.The multiple circuit boards of the energy storage power supply are more convenient to connect, the connection reliability is higher, and the stability of multiple circuit boards in the shell is better, which is beneficial to improve the working reliability of energy storage power supply.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an energy storage power supply. Background Technology

[0002] Energy storage power supplies consist of components such as a casing, battery cells, cell supports, and a control circuit board. Due to size constraints, the control circuit board cannot be a single, complete unit and is usually divided into a BMS board, a power board, and a circuit board. The BMS board, power board, and circuit board are connected via wiring harnesses. This connection method is relatively complex and inconvenient, and prone to connection failures. Furthermore, after the control circuit board is divided into multiple sub-boards, its installation stability is poor, and it is prone to shaking within the casing. Utility Model Content

[0003] The purpose of this utility model is to provide an energy storage power supply. The multiple circuit boards of the energy storage power supply are easy to connect, have high connection reliability, and the multiple circuit boards have good stability inside the casing, which is conducive to improving the working reliability of the energy storage power supply.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model discloses an energy storage power supply, comprising: a housing; a battery cell module installed inside the housing; and a circuit board module installed above the battery cell module, the circuit board module comprising multiple circuit boards spaced apart; wherein: two adjacent circuit boards are electrically connected by plug-in terminals, and the multiple circuit boards are fixedly connected through the housing and / or the battery cell module.

[0006] In some embodiments, the plurality of circuit boards include a first circuit board, a second circuit board, and a third circuit board arranged sequentially at intervals along the height direction of the housing. The battery cell module includes a battery cell, a battery cell bracket for fixing the plurality of battery cells, a busbar for connecting the plurality of battery cells in series and parallel, and a data acquisition board for collecting battery cell parameters. The first circuit board is a BMS board, which is electrically connected to the battery cell module. The second circuit board is provided with a DC-DC conversion circuit, which is electrically connected to the battery cell module through the first circuit board, converting the current of the battery cell module into current of different voltages to achieve discharge, or converting external current to charge the battery cell module. The third circuit board includes a button and an output port. The button is used to turn the energy storage power supply on or off, and the output port is electrically connected to the second circuit board to charge the battery cell module or enable the battery cell module to discharge externally.

[0007] In some specific embodiments, the first circuit board and the second circuit board are connected to the battery cell module.

[0008] In some specific embodiments, the third circuit board is connected to the housing.

[0009] In some specific embodiments, the battery cell module is provided with a first fixing post, and the energy storage power supply further includes a first fixing member, which passes through the first circuit board and is connected to the first fixing post to fix the first circuit board to the battery cell module.

[0010] In some specific embodiments, the battery cell module is provided with a first positioning post, which is snapped into connection with the first circuit board. The first positioning post is provided with a hook, which is snapped into connection with the second circuit board. The first positioning post is used to support the second circuit board.

[0011] In some specific embodiments, the battery cell module is further provided with a second fixing post, and the second circuit board is provided with a second positioning hole. The second fixing post cooperates with the second positioning hole. The energy storage power supply also includes a second fixing member, which is connected to the second fixing post to fix the second circuit board to the battery cell module.

[0012] In some specific embodiments, the inner sidewall of the housing has a fixing part, and the energy storage power supply further includes a third fixing member, which passes through the third circuit board and is connected to the fixing part to fix the third circuit board to the housing.

[0013] In some more specific embodiments, the fixing part is provided with a second positioning post, the third circuit board is provided with a third positioning hole, the second positioning post cooperates with the third positioning hole, and / or, the fixing part is provided with a positioning protrusion, the third circuit board is provided with a second positioning groove, and the positioning protrusion cooperates with the second positioning groove.

[0014] In some specific embodiments, the cell module includes a cell support and a cell, the cell support being connected to both ends of the cell, and the first circuit board and the second circuit board being connected to the cell support.

[0015] The beneficial effects of this energy storage power supply are as follows: Since the circuit board module of the energy storage power supply includes multiple circuit boards, the product size and the area of ​​the circuit boards used are reduced, improving the efficiency of circuit board utilization. Because adjacent circuit boards are connected via plug-in terminals, wireless connection is achieved, resulting in high connection reliability. This significantly reduces the amount of finished product used, optimizes the production process, reduces production steps, and improves the assembly efficiency of the energy storage power supply. Furthermore, since multiple circuit boards are connected to the casing and / or the cell module, the connection stability of the entire circuit board module inside the casing is ensured, thereby improving the operational reliability of the energy storage power supply.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the energy storage power supply according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the energy storage power supply with its outer casing removed according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the connection structure between the battery cell module and the first circuit board according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection structure between the battery cell module and the second circuit board according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the connection structure between the outer shell and the third circuit board in an embodiment of this utility model;

[0022] Figure 6 This is a schematic diagram of the battery cell module according to an embodiment of the present invention;

[0023] Figure 7 This is an assembly diagram of the battery cell module and the first circuit board according to an embodiment of the present invention;

[0024] Figure 8 yes Figure 7 A schematic diagram showing the structure on which the second and third circuit boards are mounted.

[0025] Figure 9 yes Figure 8 A schematic diagram of the structural assembly on which the outer shell is mounted;

[0026] Figure 10 This is a schematic diagram of the energy storage power supply according to an embodiment of the present invention.

[0027] Figure label:

[0028] 100. Outer shell; 110. Fixing part; 111. Second positioning post; 112. Positioning protrusion;

[0029] 200. Battery cell module; 210. Battery cell; 220. Battery cell bracket; 221. First fixing post; 222. First positioning post; 2221. Hook; 223. Second fixing post; 224. Third positioning post;

[0030] 300, Circuit board module; 310, First circuit board; 311, First positioning groove; 312, Clearance groove; 313, Fourth positioning hole; 320, Second circuit board; 321, First positioning hole; 322, Second positioning hole; 330, Third circuit board; 331, Third positioning hole; 332, Second positioning groove; 301, Plug-in terminal. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] This utility model discloses an energy storage power supply, referenced... Figures 1-2As shown, the energy storage power supply includes a housing 100, a cell module 200, and a circuit board module 300. The cell module 200 is installed inside the housing 100, and the circuit board module 300 is installed above the cell module 200. The circuit board module 300 includes multiple circuit boards, which are spaced apart. Adjacent circuit boards are electrically connected via plug-in terminals 301. The multiple circuit boards are connected to the housing 100 and / or the cell module 200. It is understood that the circuit board module 300 of the energy storage power supply in this embodiment includes multiple circuit boards, reducing product size and circuit board usage area, improving circuit board utilization efficiency. Adjacent circuit boards are connected via plug-in terminals 301, achieving wireless connection with high reliability. This significantly reduces the amount of finished product used, optimizes the production process, reduces production steps, and improves the assembly efficiency of the energy storage power supply. Furthermore, the connection of multiple circuit boards to the housing 100 and / or the cell module 200 ensures the connection stability of the entire circuit board module 300 inside the housing 100, thereby improving the operational reliability of the energy storage power supply.

[0035] refer to Figures 1-2 As shown, the multiple circuit boards include a first circuit board 310, a second circuit board 320, and a third circuit board 330 arranged sequentially at intervals along the height direction of the housing 100. The battery cell module 200 includes battery cells 210, a battery cell bracket 220 for fixing multiple battery cells 210, a busbar for connecting multiple battery cells 210 in series and parallel, and a data acquisition board for collecting parameters of the battery cells 210. The first circuit board 310 is a BMS board, electrically connected to the battery cell module 200, and includes an analog front-end and a switching circuit. The analog front-end controls the opening and closing of the switching circuit, and the analog front-end is connected to the data acquisition board. The first circuit board 310 is electrically connected to the busbar to control the charging and discharging of the battery module 200. The second circuit board 320 is equipped with a DC-DC conversion circuit. The second circuit board 320 is electrically connected to the battery module 200 through the switching circuit of the first circuit board 310, converting the current of the battery module 200 into a current of different voltages to achieve discharge, or converting the external current to charge the battery module 200. The third circuit board 330 includes a button and an output port. The button is used to turn the energy storage power supply on or off, and the output port is electrically connected to the second circuit board 320 to charge the battery module 200 or to enable the battery module 200 to discharge to the outside.

[0036] Optionally, the first circuit board 310 and the second circuit board 320 are connected to the cell module 200, and the third circuit board 330 is connected to the housing 100. The second circuit board 320 is positioned between the first circuit board 310 and the third circuit board 330. It is understood that, in the actual assembly process, the first circuit board 310 can be installed onto the cell module 200 first, then the second circuit board 320 can be installed onto the cell module 200, with the first circuit board 310 and the second circuit board 320 connected via a connector 301. Finally, the third circuit board 330 is connected to the second circuit board 320 via the connector 301. Then, the cell module 200, which contains multiple circuit boards, is installed into the housing 100, and finally, the third circuit board 330 is connected to the housing 100. The assembly process is simple and convenient, and the installation stability of the first circuit board 310, the second circuit board 320, and the third circuit board 330 is high.

[0037] Optional, see reference Figure 3 As shown, the battery cell module 200 is provided with a first fixing post 221, and the energy storage power supply also includes a first fixing component. The first fixing component passes through the first circuit board 310 and is connected to the first fixing post 221 to fix the first circuit board 310 to the battery cell module 200. It can be understood that in the actual assembly process, the first circuit board 310 is installed on the top of the battery cell module 200, and the first fixing component passes through the first circuit board 310 and is connected to the first fixing post 221. This facilitates the connection and improves the connection stability of the first circuit board 310 relative to the battery cell module 200.

[0038] Alternatively, the first fastener can be a screw, but other structures such as pins can also be selected according to actual needs.

[0039] Optionally, the battery cell module 200 is provided with a third positioning post 224, and the first circuit board 310 is provided with a fourth positioning hole 313. During actual assembly, the first circuit board 310 is installed on top of the battery cell module 200, and the third positioning post 224 is installed into the fourth positioning hole 313. This prevents the first circuit board 310 from shaking during the installation of the first fixing component, thereby improving the connection stability of the first circuit board 310 relative to the battery cell module 200.

[0040] Optional, see reference Figures 3-4 As shown, the battery cell module 200 is provided with a first positioning post 222, which is snapped into connection with the first circuit board 310. The first positioning post 222 is provided with a hook 2221, and the first positioning post 222 is used to support the second circuit board 320.

[0041] It is understandable that the first circuit board 310 is provided with a first positioning groove 311 that cooperates with the first positioning post 222. The first positioning post 222 is inserted into the first positioning groove 311. The first positioning post 222 is provided with a hook 2221. The second circuit board 320 is provided with a first positioning hole 321 that cooperates with the hook 2221. When installing the second circuit board 320, while inserting the second circuit board 320 into the first circuit board 310 through the plug-in terminal 301, it is ensured that the first positioning post 222 can be inserted into the first positioning hole 321 after passing through the first positioning groove 311. This helps to improve the connection stability of the second circuit board 320 relative to the battery cell module 200.

[0042] Further optional, see reference Figure 4 As shown, the battery cell module 200 is further provided with a second fixing post 223, and the second circuit board 320 is provided with a second positioning hole 322. The second fixing post 223 cooperates with the second positioning hole 322. The energy storage power supply also includes a second fixing member, which is connected to the second fixing post 223 to fix the second circuit board 320 to the battery cell module 200. It can be understood that during the installation process, while the second circuit board 320 is plugged into the first circuit board 310 through the plug-in terminal 301, the second fixing post 223 is plugged into the second positioning hole 322, and then the second fixing member fixes the second circuit board 320 to the battery cell module 200. This helps to improve the connection stability of the second circuit board 320 relative to the battery cell module 200. It should be noted that during maintenance, if the third circuit board 330 is disassembled, the second circuit board 320 will be pulled out along with it, which may pose a safety hazard. In this embodiment, since the second fixing member fixes the second circuit board 320 to the cell module 200, it can ensure that the second fixing post 223 presses down on the second circuit board 320, thus eliminating the safety hazard.

[0043] Further options are available, see reference. Figure 3 As shown, the first circuit board 310 is provided with a clearance groove 312 for avoiding the second fixing post 223. It can be understood that by providing the clearance groove 312 on the first circuit board 310, it can ensure that the second fixing post 223 is inserted into the second positioning hole 322, and the second fixing post 223 can also restrict the first circuit board 310, which is beneficial to improving the installation stability of the first circuit board 310 and the second circuit board 320.

[0044] Optional, see reference Figure 5As shown, the inner wall of the housing 100 has a fixing part 110. The energy storage power supply also includes a third fixing member, which passes through the third circuit board 330 and is connected to the fixing part 110 to fix the third circuit board 330 to the housing 100. It can be understood that in actual operation, the battery cell module 200, on which the first circuit board 310, the second circuit board 320, and the third circuit board 330 are installed, is inserted into the housing 100 from below. The third fixing member passes through the third circuit board 330 and is connected to the fixing part 110, which facilitates assembly and improves the stability of the third circuit board 330.

[0045] Further optional, see reference Figure 5 As shown, the fixing part 110 is provided with a second positioning post 111, and the third circuit board 330 is provided with a third positioning hole 331. The second positioning post 111 and the third positioning hole 331 cooperate with each other. It can be understood that the cooperation between the second positioning post 111 and the third positioning hole 331 can improve the connection stability of the third circuit board 330. Optionally, there are two third positioning holes 331, located on opposite sides of the third circuit board 330. This further improves the connection stability of the third circuit board 330.

[0046] Optionally, the fixing part 110 is provided with a positioning protrusion 112, and the third circuit board 330 is provided with a second positioning groove 332, with the positioning protrusion 112 engaging with the second positioning groove 332. It is understood that the engagement of the positioning protrusion 112 and the second positioning groove 332 can improve the connection stability of the third circuit board 330. Even more optionally, there are two second positioning grooves 332, located on opposite sides of the third circuit board 330. This further enhances the connection stability of the third circuit board 330.

[0047] It should be noted that when the third circuit board 330 is provided with both the second positioning groove 332 and the third positioning hole 331, the two second positioning grooves 332 and the two third positioning holes 331 are located on the four sides of the third circuit board 330 respectively.

[0048] refer to Figure 6 As shown, the battery module 200 includes a battery cell support 220 and a battery cell 210. The battery cell support 220 is connected to both ends of the battery cell 210, and a first circuit board 310 and a second circuit board 320 are connected to the battery cell support 220. It can be understood that during module transportation, the battery cell support 220 serves not only as a support for the battery cell 210 but also as a constraint and support for the first circuit board 310 and the second circuit board 320, which helps simplify the structure of the energy storage power supply and improve its assembly efficiency.

[0049] The assembly process of the energy storage power supply in this embodiment is as follows:

[0050] Step 1: Install the first circuit board 310 (BMS board) onto the cell module 200, so that the first positioning post 222 fits into the first positioning groove 311. Then, use the first fixing member to pass through the BMS board and connect it to the first fixing post 221 on the cell bracket 220 (see reference). Figure 7 (as shown);

[0051] Step 2: Install the second circuit board 320 (power board) on top of the BMS board. The power board and the BMS board are connected via connector 301, ensuring that the upper end of the first positioning post 222 is inserted into the first positioning hole 321, and the upper end of the second fixing post 223 is inserted into the second positioning hole 322. Then, the second fixing member is connected to the second fixing post 223 (see reference). Figure 8 (as shown);

[0052] Step 3: Install the third circuit board 330 (circuit board) on top of the power board. The circuit board and the power board are connected via connector 301 (see reference). Figure 8 (as shown);

[0053] The fourth step involves inserting the battery cell module 200, which is equipped with the first circuit board 310, the second circuit board 320, and the third circuit board 330, into the housing 100 from below, ensuring that the positioning protrusion 112 is inserted into the second positioning groove 332 and the second positioning post 111 is inserted into the third positioning hole 331. Then, a third fastener passes through the third circuit board 330 and connects to the fixing part 110, thus completing the assembly of the energy storage power supply (see reference). Figures 9-10 (As shown).

[0054] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An energy storage power source, characterized in that, include: shell; A battery cell module, wherein the battery cell module is installed inside the housing; A circuit board module is mounted above the battery cell module. The circuit board module includes multiple circuit boards spaced apart. Two adjacent circuit boards are electrically connected via plug terminals, and multiple circuit boards are fixedly connected via the housing and / or the battery cell module.

2. The energy storage power supply according to claim 1, characterized in that, The plurality of circuit boards include a first circuit board, a second circuit board and a third circuit board arranged sequentially at intervals along the height direction of the housing. The battery cell module includes a battery cell, a battery cell bracket for fixing the plurality of battery cells, a busbar for connecting the plurality of battery cells in series and parallel, and a data acquisition board for acquiring battery cell parameters. The first circuit board is a BMS board, which is electrically connected to the battery cell module; the second circuit board is provided with a DC-DC conversion circuit, and the second circuit board is electrically connected to the battery cell module through the first circuit board; the third circuit board includes a button and an output port, the button is used to turn the energy storage power supply on or off, and the output port is electrically connected to the second circuit board to charge the battery cell module or to enable the battery cell module to discharge to the outside.

3. The energy storage power supply according to claim 2, characterized in that, The first circuit board and the second circuit board are connected to the battery cell module.

4. The energy storage power supply according to claim 2, characterized in that, The third circuit board is connected to the outer casing.

5. The energy storage power supply according to claim 2, characterized in that, The battery cell module is provided with a first fixing post, and the energy storage power supply also includes a first fixing member. The first fixing member passes through the first circuit board and is connected to the first fixing post to fix the first circuit board to the battery cell module.

6. The energy storage power supply according to claim 2, characterized in that, The battery cell module is provided with a first positioning post, which is snapped into the first circuit board. The first positioning post is provided with a hook, which is snapped into the second circuit board. The first positioning post is used to support the second circuit board.

7. The energy storage power supply according to claim 2, characterized in that, The battery cell module is further provided with a second fixing post, and the second circuit board is provided with a second positioning hole. The second fixing post cooperates with the second positioning hole. The energy storage power supply also includes a second fixing member, which is connected to the second fixing post to fix the second circuit board to the battery cell module.

8. The energy storage power supply according to claim 2, characterized in that, The inner wall of the housing has a fixing part, and the energy storage power supply also includes a third fixing member, which passes through the third circuit board and is connected to the fixing part to fix the third circuit board to the housing.

9. The energy storage power supply according to claim 8, characterized in that, The fixing part is provided with a second positioning post, and the third circuit board is provided with a third positioning hole. The second positioning post cooperates with the third positioning hole and / or the fixing part is provided with a positioning protrusion, and the third circuit board is provided with a second positioning groove. The positioning protrusion cooperates with the second positioning groove.

10. The energy storage power supply according to claim 2, characterized in that, The battery cell module includes a battery cell bracket and a battery cell. The battery cell bracket is connected to both ends of the battery cell, and the first circuit board and the second circuit board are connected to the battery cell bracket.

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