Battery cell simulation device

Abstract

The utility model relates to the technical field of energy storage product development, in particular to a battery cell simulation device. The battery pack comprises a battery cell board card, a plurality of battery jars which are sequentially connected in series are arranged at the position of the battery cell board card, and the battery jars are used for forming a battery jar string; one end of the battery jar string is electrically connected with a positive electrode interface arranged at the battery cell board card, and the other end of the battery jar string is electrically connected with a negative electrode interface arranged at the battery cell board card; an electric sampling integrated interface is also arranged at the battery cell board card, a plurality of electric sampling terminal pairs are integrated at the electric sampling integrated interface, and the plurality of electric sampling terminal pairs respectively correspond to each battery jar and each battery jar string. According to the utility model, a plurality of battery cell board cards can be connected in series by using the positive electrode interface and the negative electrode interface at the battery cell board card, so that energy storage products with different total voltages can be better configured, the cost is saved, and the period of obtaining the required energy storage products is shortened.

Description

Technical Field

[0001] This utility model relates to the field of energy storage product development technology, and more specifically, to a battery cell simulation device. Background Technology

[0002] Currently, in the development of energy storage products in China, a complete energy storage product often consists of multiple battery packs and control units.

[0003] During the development process, the high cost of the battery pack itself leads to a large development cost for energy storage products; moreover, the battery pack is heavy and occupies a lot of space, which has several drawbacks in actual experimental operation environments.

[0004] In practical use, since different energy storage products have different numbers of battery cells in series, it would be too costly to develop each energy storage product with a corresponding number of battery packs for testing, and the time required to build the experimental environment would be too long. Utility Model Content

[0005] This invention provides a battery cell simulation device that can overcome some or all of the defects of the prior art.

[0006] A battery cell simulation device according to the present invention includes:

[0007] The battery cell board has multiple battery slots connected in series to form a battery slot string. One end of the battery slot string is electrically connected to a positive terminal interface located on the battery cell board, and the other end is electrically connected to a negative terminal interface located on the battery cell board. The battery cell board also has an electrical sampling integrated interface with multiple electrical sampling terminal pairs, each corresponding to a battery slot and a battery slot string.

[0008] Among them, multiple battery cell boards can be connected in series using the positive and negative interfaces on the battery cell board. When the stored energy of the battery cell board drops to the lower limit, the positive and negative interfaces on the battery cell board can be used to connect a power source to charge the battery cell board. Therefore, it is possible to better realize energy storage products with different total voltages, saving costs and shortening the cycle of obtaining the required energy storage products.

[0009] Preferably, the electrical sampling terminal pair has two electrical sampling terminals corresponding to the positive and negative terminals of the battery slot or battery string, respectively, and a first protection resistor is electrically connected between the electrical sampling terminal and the battery slot or battery string.

[0010] Based on the above, the use of the first protective resistor to provide short-circuit protection for the battery cells loaded in the battery compartment improves the safety of the battery cell simulation device during use.

[0011] Preferably, the battery cell board is also provided with multiple thermistors and temperature sampling integrated interfaces corresponding to the multiple thermistors. The temperature sampling integrated interface is integrated with multiple temperature sampling terminal pairs, and the multiple temperature sampling terminal pairs correspond to the multiple thermistors respectively.

[0012] Based on the above, by using a thermistor to sense the temperature of the battery cell and change its resistance, the battery cell temperature can be simulated and sampled more effectively.

[0013] Preferably, one or more of the battery slots are provided with conductive solder joints at the positive or negative terminals, and the conductive solder joints are electrically connected to the corresponding positive or negative terminals.

[0014] Based on the above, it is possible to achieve better series connection between battery slots to form a battery slot string.

[0015] Preferably, the number of battery slots is 16, and the battery slots are used to hold 18650 battery cells. This helps to save costs.

[0016] Preferably, banana plugs are used for both the positive and negative terminals. This facilitates the series connection between battery cell boards and the connection of power supplies.

[0017] The battery cell simulation device of this utility model also includes a chassis, which has multiple card slots for cooperating with battery cell circuit boards.

[0018] Based on the above, different numbers of battery cell boards can be configured according to different energy storage products using the board slots, thus making it relatively easy to obtain battery cell simulation devices with different total voltages.

[0019] As a preferred option, a 6U chassis is used. This facilitates the construction of the battery cell simulation device.

[0020] Furthermore, the battery cell simulation device of this invention also includes a 0-ohm resistor disposed on the battery cell board corresponding to the four adjacent series-connected battery slots. The 0-ohm resistor is used to adjust the number of battery cells in series on the battery cell board. Therefore, it is possible to conveniently obtain the battery cell board corresponding to the required total voltage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the battery cell board in Embodiment 1;

[0022] Figure 2 This is the electrical schematic diagram of the battery cell board in Example 1.

[0023] Figure 3 This is a front view of the cell simulation device in Embodiment 1.

[0024] Figure 4 This is a rear view of the cell simulation device in Embodiment 1. Detailed Implementation

[0025] To further understand the content of this utility model, the invention will be described in detail with reference to the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention. Example

[0026] Seen in Figure 1 This embodiment provides a battery cell simulation device, which includes:

[0027] A battery cell board 100 is provided, and multiple battery slots 110 are arranged in series at the battery cell board 100 to form a battery slot string. One end of the battery slot string is electrically connected to a positive terminal interface 121 provided at the battery cell board 100, and the other end of the battery slot string is electrically connected to a negative terminal interface 122 provided at the battery cell board 100. The battery cell board 100 is also provided with an electrical sampling integrated interface 130, which integrates multiple electrical sampling terminal pairs, each of which corresponds to each battery slot 110 and the battery slot string.

[0028] Multiple battery cell boards 100 can be connected in series using the positive interface 121 and negative interface 122 on the battery cell board 100. When the stored energy of the battery cell board 100 drops to the lower limit, the positive interface 121 and negative interface 122 on the battery cell board 100 can be used to connect to a power source to charge the battery cell board 100. Therefore, it is possible to better realize energy storage products with different total voltages, saving costs and shortening the cycle of obtaining the required energy storage products.

[0029] In a battery cell simulation device of this embodiment, the electrical sampling terminal pair has two electrical sampling terminals corresponding to the positive and negative terminals of the battery slot or battery slot string, respectively. A first protection resistor is electrically connected between the electrical sampling terminals and the battery slot or battery slot string.

[0030] Based on the above, the use of the first protective resistor to provide short-circuit protection for the battery cells loaded in the battery compartment improves the safety of the battery cell simulation device during use.

[0031] Seen in Figure 2 The battery cell board 100 is also provided with multiple thermistors and a temperature sampling integrated interface 140 corresponding to the multiple thermistors. The temperature sampling integrated interface 140 is integrated with multiple temperature sampling terminal pairs, and the multiple temperature sampling terminal pairs are respectively corresponding to the multiple thermistors.

[0032] Based on the above, by using a thermistor to sense the temperature of the battery cell and change its resistance, the battery cell temperature can be simulated and sampled more effectively.

[0033] In a battery cell simulation device of this embodiment, one or more of the above-mentioned battery slots 110 are provided with conductive soldering points at the positive or negative terminals, and the conductive soldering points are electrically connected to the corresponding positive terminal interface 121 or negative terminal interface 123.

[0034] Based on the above, the battery slots 110 can be connected in series to form a battery slot string.

[0035] In this embodiment of the battery cell simulation device, the number of the aforementioned battery slots 110 is 16, and the battery slots (110) are used to load 18650 battery cells. Therefore, it is beneficial to save costs.

[0036] In this embodiment of the battery cell simulation device, the positive interface 121 and the negative interface 122 adopt banana plugs. This facilitates the series connection between battery cell boards 100 and the access to power.

[0037] Seen in Figure 3 In this embodiment of the battery cell simulation device, a chassis 200 is also included, which has a plurality of board slots 210 for cooperating with the battery cell board 100.

[0038] Based on the above, the number of cell boards 100 can be configured according to different energy storage products using the board slot 210, thus making it easier to obtain cell simulation devices with different total voltages.

[0039] Seen in Figure 4 The chassis 200 uses a 6U chassis, which facilitates the construction of a battery cell simulation device.

[0040] Furthermore, the cell simulation device of this embodiment also includes a 0-ohm resistor disposed on the cell board 100 corresponding to four adjacent series-connected battery slots 110. The 0-ohm resistor is used to adjust the number of cells in series on the cell board 100. Therefore, the cell board 100 corresponding to the required total voltage can be obtained more conveniently.

[0041] In practical use, the battery cell simulation device of this embodiment configures the battery cell board 100 according to the required total voltage, then samples the voltage of the configured energy storage product through the electrical sampling integrated interface 130 at the battery cell board 100, and simultaneously samples the battery cell temperature through the temperature sampling integrated interface 140 at the battery cell board 100. Therefore, it is possible to conveniently obtain various data of the configured energy storage product.

[0042] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0043] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A battery cell simulation device, characterized in that: The device includes a battery cell board (100), on which multiple battery slots (110) are connected in series to form a battery slot string. One end of the battery slot string is electrically connected to a positive terminal interface (121) located on the battery cell board (100), and the other end of the battery slot string is electrically connected to a negative terminal interface (122) located on the battery cell board (100). The battery cell board (100) is also provided with an electrical sampling integrated interface (130), which integrates multiple electrical sampling terminal pairs, each corresponding to a battery slot (110) and a battery slot string.

2. The cell simulation device according to claim 1, characterized in that: The electrical sampling terminal pair has two electrical sampling terminals corresponding to the positive and negative terminals of the battery slot or battery slot string, respectively. Each electrical sampling terminal is electrically connected to a first protection resistor between itself and the battery slot or battery slot string.

3. The cell simulation device according to claim 1, characterized in that: The battery cell board (100) is also provided with multiple thermistors and a temperature sampling integrated interface (140) corresponding to the multiple thermistors. The temperature sampling integrated interface (140) is integrated with multiple temperature sampling terminal pairs, which are respectively corresponding to the multiple thermistors.

4. The cell simulation device according to claim 1, characterized in that: One or more of the battery slots (110) are provided with conductive solder joints at the positive or negative terminals, and the conductive solder joints are electrically connected to the corresponding positive terminal interface (121) or negative terminal interface (122).

5. The cell simulation device according to claim 1, characterized in that: The number of the plurality of battery slots (110) is 16, and the battery slots (110) are used to load 18650 battery cells.

6. The cell simulation device according to claim 1, characterized in that: The positive terminal (121) and negative terminal (122) use banana plugs.

7. A cell simulation device according to claim 1, characterized in that: It also includes a chassis (200) having multiple board slots (210) for mating with the battery cell board (100).

8. A cell simulation device according to claim 7, characterized in that: The chassis (200) adopts a 6U chassis.

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