A test adapter plate for a battery temperature protection plate

Abstract

The utility model discloses a kind of test battery temperature protection board's adapter plate, the adapter plate includes several groups adjustable resistance unit and acquisition line unit;Several groups the adjustable resistance unit is mutually parallel, several groups the adjustable resistance unit is connected with the acquisition line unit, the acquisition line unit is also connected with battery group and battery temperature protection board;The adjustable resistance unit includes switch group and several adjustable resistors, each the adjustable resistor is connected with the switch group, the switch group controls whether the adjustable resistor is accessed the battery temperature protection board.The adapter plate is directly adjusted to the resistance value of thermocouple of battery group by adjustable resistance unit setting different resistance value to trigger the resistance value when temperature protection of battery temperature protection board, so battery group will trigger temperature protection, and the temperature protection function of battery temperature protection board can be quickly tested.

Description

Technical Field

[0001] This application belongs to the field of battery temperature detection technology, specifically referring to an adapter board for testing battery temperature protection boards. Background Technology

[0002] Modern new energy vehicle batteries typically include a built-in battery temperature protection board. This board provides both high-temperature and low-temperature protection. Thermocouples on the battery detect abnormal temperatures, such as excessively high or low temperatures, and then cut off the charging / discharging MOSFETs, preventing the battery from operating. Most thermocouples used in batteries currently transmit changes in probe resistance based on temperature variations. The battery temperature protection board then uses these changes in probe resistance to translate them into real-time temperature readings.

[0003] Before batteries leave the factory, the battery temperature protection board is tested to ensure its functionality is not compromised. Currently, the common method is to place the battery under test in a high-low temperature chamber for heating or cooling to check for this function. However, this method of changing the battery's ambient temperature in a high-low temperature chamber to test the temperature protection function is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this application provides an adapter board for testing battery temperature protection boards, which can directly test the temperature protection function of battery temperature protection boards.

[0005] This utility model provides an adapter board for testing a battery temperature protection board. The adapter board includes several sets of adjustable resistor units and acquisition line units. The several sets of adjustable resistor units are connected in parallel with each other, and each set of adjustable resistor units is connected to the acquisition line unit. The acquisition line unit is also externally connected to a battery pack and a battery temperature protection board. The adjustable resistor unit includes a switch group and several adjustable resistors. Each adjustable resistor is connected to the switch group, and the switch group controls whether the adjustable resistor is connected to the battery temperature protection board.

[0006] Furthermore, according to the adapter board of the test battery temperature protection board provided by this utility model, the acquisition line unit includes a first acquisition line port and a second acquisition line port. Furthermore, according to the adapter board of the test battery temperature protection board provided by this utility model, both the first acquisition line port and the second acquisition line port include a grounding port, several temperature detection ports and several battery connection ports. The temperature detection ports of the first and second acquisition lines each correspond to the number of external battery packs; the temperature detection ports of the first and second acquisition lines each correspond to the number of adjustable resistor units. Furthermore, according to the adapter board of the test battery temperature protection board provided by this utility model, one end of a plurality of battery connection ports of the first acquisition line port is externally connected to the battery pack, and the other end of a plurality of battery connection ports of the first acquisition line port is connected to a plurality of battery connection ports of the second acquisition line port. The other end of several battery connection ports of the second acquisition line port is externally connected to the battery temperature protection board.

[0007] Furthermore, according to the adapter board of the test battery temperature protection board provided by this utility model, one end of a plurality of temperature detection ports of the first acquisition line port is externally connected to the battery pack. One end of several temperature detection ports of the second acquisition line port is connected to the adjustable resistor unit, and the other end of several temperature detection ports of the second acquisition line port is externally connected to the battery temperature protection board. Furthermore, according to the adapter board of the test battery temperature protection board provided by this utility model, the number of switches in the switch group of the adjustable resistor unit corresponds one-to-one with the number of adjustable resistors.

[0008] Furthermore, according to the adapter board of the test battery temperature protection board provided by this utility model, the adapter board of the test battery temperature protection board includes two sets of adjustable resistor units. Furthermore, according to the adapter board of the test battery temperature protection board provided by this utility model, the adjustable resistor unit includes three sets of switches and three sets of adjustable resistors, and the adjustable resistors are connected to the switches one by one. Furthermore, according to the adapter plate of the test battery temperature protection board provided by this utility model, the adjustable resistor is a sliding rheostat.

[0009] The beneficial effects of this utility model are as follows: This utility model provides an adapter board for testing battery temperature protection boards. It connects the battery pack and the battery temperature protection board via a data acquisition line unit, and uses an adjustable resistor unit to set different resistance values, directly adjusting the resistance of the battery pack's thermocouple to the resistance value that triggers the temperature protection board's temperature protection function. This allows for rapid testing of the battery temperature protection board's temperature protection function. Simultaneously, the adjustable resistor unit includes several adjustable resistors, increasing the resistance range of the adjustable resistor unit and greatly satisfying the needs of thermocouples with different resistance values ​​available on the market. This significantly improves testing efficiency, thereby increasing production efficiency. Attached Figure Description

[0010] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0011] Figure 1 This is a schematic diagram of the adapter board of the test battery temperature protection board provided in this embodiment.

[0012] Figure 2 This is a schematic diagram of the working connection of the adapter board of the test battery temperature protection board provided in this embodiment.

[0013] The components in the diagram are labeled as follows: first acquisition line port 10, second acquisition line port 11, first adjustable resistor unit 20, and second adjustable resistor unit 21. Detailed Implementation

[0014] The technical solutions of the embodiments of this application 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 them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0015] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0016] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0017] The embodiments of this application will now be further described in conjunction with the accompanying drawings and specific implementation details.

[0018] Figure 1 This is a schematic diagram of the adapter board of the test battery temperature protection board provided in this embodiment.

[0019] like Figure 1 As shown, the adapter board of the test battery temperature protection board includes several sets of adjustable resistor units and acquisition line units; the several sets of adjustable resistor units are connected in parallel with each other, and the several sets of adjustable resistor units are all connected to the acquisition line units. The acquisition line units are also externally connected to the battery pack and the battery temperature protection board. The adjustable resistor unit includes a switch group and several adjustable resistors. Each adjustable resistor is connected to the switch group, and the switch group controls whether the adjustable resistor is connected to the battery temperature protection board.

[0020] Specifically, the acquisition line unit includes a first acquisition line port 10 and a second acquisition line port 11. Both the first acquisition line port 10 and the second acquisition line port 11 include a grounding port, several temperature detection ports, and several battery connection ports. The temperature detection ports of the first acquisition line port 10 and the second acquisition line port 11 correspond one-to-one with the number of external battery packs. The temperature detection ports of the first acquisition line port 10 and the second acquisition line port 11 also correspond one-to-one with the number of adjustable resistor units.

[0021] One end of one of the battery connection ports of the first acquisition line port 10 is externally connected to the battery pack, and the other end of the battery connection ports of the first acquisition line port 10 is connected to one of the battery connection ports of the second acquisition line port 11; the other end of the battery connection ports of the second acquisition line port 11 is externally connected to the battery temperature protection board. One end of one of the temperature detection ports of the first acquisition line port 10 is externally connected to the battery pack; one end of one of the temperature detection ports of the second acquisition line port 11 is connected to the adjustable resistor unit, and the other end of the temperature detection ports of the second acquisition line port 11 is externally connected to the battery temperature protection board. Specifically, in this embodiment, the battery pack is described as consisting of four series-connected battery cells and two thermocouples. Therefore, in this embodiment, both the first acquisition line port 10 and the second acquisition line port 11 include a ground port GND; two temperature detection ports, namely the first temperature detection port T0 and the second temperature detection port T1; and five battery connection ports, namely the first battery connection port B0, the second battery connection port B1, the third battery connection port B2, the fourth battery connection port B3, and the fifth battery connection port B4.

[0022] like Figure 1 As shown, the first battery connection port B0, the second battery connection port B1, the third battery connection port B2, the fourth battery connection port B3, and the fifth battery connection port B4 of the first acquisition line port 10 are respectively connected to the first battery connection port B0, the second battery connection port B1, the third battery connection port B2, the fourth battery connection port B3, and the fifth battery connection port B4 of the second acquisition line port 11.

[0023] The first temperature detection port T0 and the second temperature detection port T1 of the second acquisition line port 11 are respectively connected to the adjustable resistor unit.

[0024] In this embodiment, the number of switches in the switch group of the adjustable resistor unit corresponds one-to-one with the number of adjustable resistors.

[0025] In this embodiment, the adapter board of the test battery temperature protection board includes two sets of adjustable resistor units, and the adjustable resistor unit includes three sets of switches and three sets of adjustable resistors as an example for illustration.

[0026] like Figure 1As shown, in this embodiment, the adapter board includes a first adjustable resistor unit 20 and a second adjustable resistor unit 21. The first adjustable resistor unit 20 includes a first switch group K1 and a first adjustable resistor RP1, a second adjustable resistor RP2, and a third adjustable resistor RP3. The first switch group K1 includes three sets of switches: ports 1 and 6 are the first switches, ports 2 and 5 are the third switches, and ports 3 and 4 are the third switches. The first switch and the first adjustable resistor RP1 are connected in series, the second switch and the second adjustable resistor RP2 are connected in series, and the third switch and the third adjustable resistor RP3 are connected in series. One end of the first switch group K1 is connected to the ground port GND of the two acquisition line ports, and the other ends of the first adjustable resistor RP1, the second adjustable resistor RP2, and the third adjustable resistor RP3 are all connected to the first temperature detection port T0 of the second acquisition line port 11.

[0027] The second adjustable resistor unit 21 includes a second switch group K2 and a fourth adjustable resistor RP4, a fifth adjustable resistor RP5, and a sixth adjustable resistor RP6. The second switch group K2 is the same as the first switch group K1, and will not be described further. In the second adjustable resistor unit 21, the first switch and the fourth adjustable resistor RP4 of the second switch group K2 are connected in series, the second switch and the fifth adjustable resistor RP5 are connected in series, and the third switch and the sixth adjustable resistor RP6 are connected in series. One end of the second switch group K2 is connected to the ground port GND of the two acquisition line ports, and the other ends of the fourth adjustable resistor RP4, the fifth adjustable resistor RP5, and the sixth adjustable resistor RP6 are all connected to the second temperature detection port T1 of the second acquisition line port 11.

[0028] In this embodiment, a sliding rheostat is used as an example of an adjustable resistor; however, the adjustable resistor can also be other resistors whose resistance value can be adjusted. The model and specifications of the first adjustable resistor RP1, the second adjustable resistor RP2, the third adjustable resistor RP3, the fourth adjustable resistor RP4, the fifth adjustable resistor RP5, and the sixth adjustable resistor RP6 are not limited here; they can be the same model or different models.

[0029] Figure 2 This is a schematic diagram of the working connection of the adapter board of the test battery temperature protection board provided in this embodiment.

[0030] like Figure 2As shown, the first battery connection port B0, the second battery connection port B1, the third battery connection port B2, the fourth battery connection port B3, and the fifth battery connection port B4 of the first acquisition line port 10 of the adapter board are respectively connected to the ports of the battery pack. The first temperature detection port T0 and the second temperature detection port T1 of the first acquisition line port 10 are respectively connected to the first thermocouple and the second thermocouple of the battery pack. The ground port GND of the first acquisition line port 10 is connected to the first thermocouple and the second thermocouple.

[0031] The first battery connection port B0, second battery connection port B1, third battery connection port B2, fourth battery connection port B3, and fifth battery connection port B4 of the second acquisition line port 11 of the adapter board are respectively connected to the first battery connection port B0, second battery connection port B1, third battery connection port B2, fourth battery connection port B3, and fifth battery connection port B4 of the temperature protection board of the battery under test. The first temperature detection port T0 and the second temperature detection port T1 of the second acquisition line port 11 are respectively connected to the first temperature detection port T0 and the second temperature detection port T1 of the temperature protection board of the battery under test. The grounding port GND of the second acquisition line port 11 is connected to the grounding port GND of the temperature protection board of the battery under test.

[0032] like Figure 2 As shown, the temperature reading value of the first temperature detection port T0 of the battery under test temperature protection board is set by the first switch group K1 of the first adjustable resistor unit 20. When ports 1 and 6 of the first switch of the first switch group K1 are closed and the other switch ports of the first switch group K1 are open, the resistance value detected by the first temperature detection port T0 of the battery under test temperature protection board is the resistance value set by the first adjustable resistor RP1.

[0033] When ports 2 and 5 of the second switch of the first switch group K1 are closed and the other switch ports of the first switch group K1 are open, the resistance value detected by the first temperature detection port T0 of the battery under test temperature protection board is the resistance value set by the second adjustable resistor RP2.

[0034] When ports 3 and 4 of the third switch of the first switch group K1 are closed and the other switch ports of the first switch group K1 are open, the resistance value detected by the first temperature detection port T0 of the battery under test temperature protection board is the resistance value set by the third adjustable resistor RP3.

[0035] Similarly, the temperature reading value of the second temperature detection port T1 of the battery under test temperature protection board is set by the second switch group K2 of the second adjustable resistor unit 21.

[0036] In this embodiment, thermocouples of different specifications or temperature settings can be adapted by adjusting the resistance values ​​of the first adjustable resistor RP1, the second adjustable resistor RP2, the third adjustable resistor RP3, the fourth adjustable resistor RP4, the fifth adjustable resistor RP5, and the sixth adjustable resistor RP6. Alternatively, different combinations of resistance values ​​can be adjusted by adjusting different switch combinations of the first switch group K1 and / or the second switch group K2 to adapt thermocouples of different specifications or temperature settings.

[0037] Therefore, the adapter board of the test battery temperature protection board provided in this embodiment can be adapted to thermocouples of various types or resistance values, greatly expanding its applicability.

[0038] This invention provides an adapter board for testing battery temperature protection boards. It connects the battery pack and the battery temperature protection board via a data acquisition line unit, and uses an adjustable resistor unit to set different resistance values, directly adjusting the resistance of the battery pack's thermocouples to the value that triggers the temperature protection board's temperature protection function. This allows for rapid testing of the battery temperature protection board's temperature protection function. Furthermore, the adjustable resistor unit includes several adjustable resistors, increasing the resistance range and greatly satisfying the needs of thermocouples with different resistance values ​​available on the market. This significantly improves testing efficiency, thereby increasing production efficiency.

[0039] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Finally, it should be noted that in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0040] The above provides a detailed description of an adapter board for a test battery temperature protection board provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An adapter board for testing battery temperature protection boards, characterized in that, The adapter board includes several sets of adjustable resistor units and acquisition line units; the several sets of adjustable resistor units are connected in parallel with each other, and each set of adjustable resistor units is connected to the acquisition line unit. The acquisition line unit is also externally connected to the battery pack and the battery temperature protection board. The adjustable resistor unit includes a switch group and several adjustable resistors. Each adjustable resistor is connected to the switch group, and the switch group controls whether the adjustable resistor is connected to the battery temperature protection board.

2. The adapter board for the test battery temperature protection board according to claim 1, characterized in that, The acquisition line unit includes a first acquisition line port and a second acquisition line port.

3. The adapter board for the test battery temperature protection board according to claim 2, characterized in that, Both the first acquisition line port and the second acquisition line port include a grounding port, several temperature detection ports, and several battery connection ports; wherein, the temperature detection ports of the first acquisition line port and the second acquisition line port correspond one-to-one with the number of external battery packs; and the temperature detection ports of the first acquisition line port and the second acquisition line port correspond one-to-one with the number of adjustable resistor units.

4. The adapter board for the test battery temperature protection board according to claim 3, characterized in that, One end of a plurality of battery connection ports of the first acquisition line port is externally connected to the battery pack, and the other end of a plurality of battery connection ports of the first acquisition line port is connected to a plurality of battery connection ports of the second acquisition line port. The other end of several battery connection ports of the second acquisition line port is externally connected to the battery temperature protection board.

5. The adapter board for the test battery temperature protection board according to claim 3, characterized in that, One end of several temperature detection ports of the first acquisition line port is externally connected to the battery pack; one end of several temperature detection ports of the second acquisition line port is connected to the adjustable resistor unit, and the other end of several temperature detection ports of the second acquisition line port is externally connected to the battery temperature protection board.

6. The adapter board for the test battery temperature protection board according to claim 1, characterized in that, The number of switches in the switch group of the adjustable resistor unit corresponds one-to-one with the number of adjustable resistors.

7. The adapter board for the test battery temperature protection board according to claim 6, characterized in that, The adapter board of the test battery temperature protection board includes two sets of adjustable resistor units.

8. The adapter board for the test battery temperature protection board according to claim 7, characterized in that, The adjustable resistor unit includes three sets of switches and three sets of adjustable resistors, with each adjustable resistor connected to one of the switches.

9. The adapter board for the test battery temperature protection board according to claim 8, characterized in that, The adjustable resistor is a sliding rheostat.

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