Information acquisition assembly for battery, power battery and vehicle

Abstract

The utility model discloses an information acquisition assembly for a battery, a power battery and a vehicle, the information acquisition assembly for the battery comprises an isolation plate, one side surface of the isolation plate in the thickness direction is a first surface, and the first surface is opposite to a battery cell module of the battery and is provided with a groove; at least part of the circuit board is contained in the groove, and a positioning hole is formed in the bottom wall of the groove; the sensor is located on the surface, facing the first surface, of the circuit board and electrically connected with the circuit board, and the sensor is contained in the positioning hole. According to the information acquisition assembly for the battery, the grooves and the positioning holes are formed in the isolation plate, so that the circuit board and the sensor are positioned and mounted on the isolation plate, an additional fixing structure is not needed, the structure is simple, the number of mold opening parts can be reduced, and the process cost is lower.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, and in particular to an information acquisition component for a battery, a power battery and a vehicle. Background Art

[0002] In related technologies, a power battery is provided with an information acquisition component to collect the temperature of the bar piece or the temperature of the aluminum shell on the upper surface of the battery cell. In some existing technologies, the information acquisition component needs to be fixed on the battery through an additional fixing structure, and the fixing structure needs to be molded separately, increasing the cost. Moreover, the fixing structure needs to be connected to the circuit board through other processes, and the production process is cumbersome. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide an information acquisition component for a battery. The information acquisition component for a battery designed according to the utility model has a groove and a positioning hole formed in a partition board, so as to position and install a circuit board and a sensor on the partition board. Without using an additional fixing structure, the structure is simple, the number of mold parts can be reduced, and the process cost is lower.

[0004] The utility model also provides a power battery having the above-mentioned information acquisition component for a battery.

[0005] The utility model also provides a vehicle having the above-mentioned power battery.

[0006] The information acquisition component for a battery according to the utility model includes: a partition board, one surface of the partition board in the thickness direction is a first surface, the first surface faces the battery cell module and is provided with a groove; a circuit board, at least part of the circuit board is received in the groove, and a positioning hole is provided on the bottom wall of the groove; a sensor, the sensor is located on the surface of the circuit board facing the first surface and is electrically connected to the circuit board, and the sensor is received in the positioning hole.

[0007] The information acquisition component for a battery according to the utility model positions and installs the circuit board and the sensor on the partition board by forming a groove and a positioning hole in the partition board, without using an additional fixing structure. It has a simple structure, fewer installation processes, can reduce the number of mold parts, and reduce the process cost.

[0008] According to some embodiments of the utility model, a through hole is formed through the partition board in the thickness direction, the other surface of the partition board in the thickness direction is a second surface, and the circuit board is configured to be flexible and adapted to extend from the second surface through the through hole to the first surface.

[0009] According to some embodiments of the present utility model, the second surface is further provided with a groove body that is directly opposite to the groove in the thickness direction of the isolation plate. The positioning hole is provided through the isolation plate in the thickness direction, and the sensor extends from the groove through the positioning hole to the groove body.

[0010] According to some embodiments of the present utility model, in the thickness direction of the isolation plate, the depth of the groove body is d, and the height of the part of the sensor exposed from the groove body is h, and it satisfies: d ≥ h.

[0011] According to some embodiments of the present utility model, the sensor is configured as at least one of a temperature sensor and a voltage sensor.

[0012] According to some embodiments of the present utility model, the sensor is configured as a temperature sensor. The circuit board has a sensor installation area suitable for setting the temperature sensor, and a heat conduction pad is further provided on the surface of the sensor installation area facing the battery cell module.

[0013] According to some embodiments of the present utility model, the sensor is connected to the circuit board by one of hot pressing connection, insertion connection, and surface mounting connection.

[0014] According to some embodiments of the present utility model, the through holes are configured to be two and are respectively arranged on both sides of the groove body.

[0015] The power battery according to the second aspect embodiment of the present utility model is briefly described below.

[0016] The power battery according to the present utility model includes: a battery housing, an installation cavity is formed in the battery housing; a battery cell module, the battery cell module is arranged in the installation cavity; an information acquisition component, the information acquisition component is located in the installation cavity and is configured as the information acquisition component for the battery described in any one of the above embodiments, and the information acquisition component is arranged between the battery housing and the battery cell module. Since the power battery according to the present utility model is provided with the information acquisition component for the battery described in the above embodiments, the installation process of the power battery is less, and the manufacturing cost is lower.

[0017] The vehicle according to the third aspect embodiment of the present utility model is briefly described below.

[0018] The vehicle according to the present utility model includes the power battery described in the above embodiments. Since the vehicle according to the present utility model is provided with the power battery described in the above embodiments, the installation of the vehicle is faster.

[0019] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. Brief Description of the Drawings

[0020] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, where:

[0021] Figure 1 is a schematic structural diagram of an information acquisition component according to an embodiment of the present utility model.

[0022] Figure 2 is a schematic structural diagram of a partition board according to an embodiment of the present utility model.

[0023] Reference Numerals:

[0024] 100, information acquisition component;

[0025] 1, circuit board; 2, partition board; 21, first surface; 22, groove; 23, positioning hole; 24, through hole; 25, second surface; 26, groove body; 3, sensor; 4, heat conductive pad. Detailed Description of the Embodiments

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0029] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0031] In the related art, a power battery is provided with an information collection component to collect the temperature of the bus bar or the temperature of the aluminum shell on the upper surface of the battery cell. In some existing technologies, the information collection component needs to be fixed on the battery through an additional fixing structure, and the fixing structure needs to be molded separately, increasing the cost. Moreover, the fixing structure needs to be connected to the circuit board through other processes, making the production process cumbersome.

[0032] Next, refer to Figure 1 - Figure 2 to describe the information collection component 100 for a battery according to an embodiment of the present utility model.

[0033] As Figure 1 - Figure 2 shown, the information collection component 100 for a battery according to the present utility model includes: an isolation board 2, a circuit board 1, and a sensor 3. One surface of the isolation board 2 in the thickness direction is a first surface 21, and the first surface 21 faces the battery cell module and is provided with a groove 22; at least a part of the circuit board 1 is received in the groove 22, and the bottom wall of the groove 22 is provided with a positioning hole 23; the sensor 3 is located on the surface of the circuit board 1 facing the first surface 21 and is electrically connected to the circuit board 1, and the sensor 3 is received in the positioning hole 23. Specifically, the isolation board 2 is used to install the circuit board 1 and the sensor 3 inside the battery and is adapted to fix the information collection component 100 inside the battery. The circuit board 1 is arranged between the isolation board 2 and the battery cell module. The sensor 3 is electrically connected to the circuit board 1 and is adapted to collect the information of the battery cell module and transmit the information to the battery management system to realize the monitoring of the real-time condition of the battery.

[0034] To achieve the positioning of the sensor 3 and the circuit board 1, a groove 22 is formed on the first surface 21 of the isolation plate 2 facing the battery cell module, and at least a part of the circuit board 1 is received in the groove 22 to achieve the positioning of the circuit board 1. Meanwhile, a positioning hole 23 is formed at the bottom of the groove 22, and the sensor 3 is received in the positioning hole 23 to achieve the positioning of the sensor 3. Since the sensor 3 is connected to the circuit board 1, after the positioning hole 23 positions the sensor 3, the movement of the circuit board 1 relative to the isolation plate 2 can also be restricted, further limiting the circuit board 1 and the sensor 3, stabilizing the structure of the information collection component 100, and determining the position of the information collection component 100 relative to the battery cell module.

[0035] According to the information collection component 100 for a battery of the present invention, by forming a groove 22 and a positioning hole 23 on the isolation plate 2, the circuit board 1 and the sensor 3 are positioned and installed on the isolation plate 2 without using additional fixing structures, with a simple structure, fewer installation processes, and the number of mold parts can be reduced, reducing the process cost.

[0036] According to some embodiments of the present invention, as Figure 1 - Figure 2 shown, a through hole 24 is formed through the isolation plate 2 in the thickness direction. The other surface of the isolation plate 2 in the thickness direction is the second surface 25. The circuit board 1 is configured to be flexible and is adapted to extend from the second surface 25 through the through hole 24 to the first surface 21. The flexible circuit board 1 passes through the through hole 24 from the second surface 25 of the isolation plate 2 to the first surface 21 of the isolation plate 2. At this time, a part of the surface of the circuit board 1 facing the first surface 21 is aligned with the positioning hole 23, and the sensor 3 can be arranged on the surface of the circuit board 1 aligned with the positioning hole 23. Here, the through hole 24 can be used for positioning the circuit board 1 in the width direction to restrict the movement of the circuit board 1.

[0037] According to some embodiments of the present invention, as Figure 1 - Figure 2 shown, a groove body 26 is further provided on the second surface 25 and is aligned with the groove 22 in the thickness direction of the isolation plate 2. The positioning hole 23 is formed through the isolation plate 2 in the thickness direction, and the sensor 3 extends from the groove 22 through the positioning hole 23 to the groove body 26. Specifically, the positioning hole 23 penetrates the bottom wall of the groove body 26 and the bottom wall of the groove 22 in the thickness direction of the isolation plate 2. The sensor 3 located on the first surface 21 of the isolation plate 2 can extend to the second surface 25 of the isolation plate 2 through the positioning hole 23. At this time, the positioning hole 23 can play a role in positioning and installing the sensor 3.

[0038] According to some embodiments of the present invention, as Figure 1As shown, in the thickness direction of the isolation plate 2, the depth of the groove body 26 is d, and the height of the part of the sensor 3 exposed from the groove body 26 is h, and it satisfies: d≥h. The sensor 3 does not exceed the groove body 26, which can avoid the leakage of the sensor 3, avoid wear, and play a role in protecting the sensor 3.

[0039] According to some embodiments of the present invention, the sensor 3 is configured as at least one of a temperature sensor and a voltage sensor to collect the temperature and / or voltage information of the battery cell module, and transmit this information to the battery management system to realize the monitoring of the real-time condition of the battery.

[0040] According to some embodiments of the present invention, the sensor 3 is configured as a temperature sensor. The circuit board 1 has a sensor installation area, and the sensor installation area is suitable for setting the temperature sensor. A heat conduction pad 4 is also provided on the surface of the sensor installation area facing the battery cell module. In some embodiments, the sensor installation area on the circuit board 1 is aligned with the positioning hole 23 on the isolation plate 2, and the temperature sensor can be set in the sensor installation area for installation into the positioning hole 23. Here, in order to facilitate the temperature sensor to collect the temperature data of the battery cell module, a heat conduction pad 4 is provided between the circuit board 1 and the battery cell module, so that the temperature sensor can collect the temperature data of the battery cell module more accurately and comprehensively. Optionally, the heat conduction pad 4 is located between the sensor installation area of the circuit board 1 and the battery cell module.

[0041] According to some embodiments of the present invention, the sensor 3 and the circuit board 1 are connected in one of the ways of hot pressing connection, insertion connection and surface mounting connection, and it is ensured that the sensor 3 and the circuit board 1 are fixedly connected. The specific connection method can be designed according to actual needs and is not limited here.

[0042] According to some embodiments of the present invention, as Figure 2 shown, the through holes 24 are configured to be two and are respectively arranged on both sides of the groove body 26. Here, the circuit board 1 is made of a flexible material, and the flexible circuit board 1 is positioned under the action of the two through holes 24, and the part of the flexible circuit board 1 between the two through holes 24 is the sensor installation area. The sensor installation area of the flexible circuit board 1 can be received in the groove 22 of the isolation plate 2 and is aligned with the positioning hole 23, so that the sensor 3 can be connected to the positioning hole 23.

[0043] The power battery according to the present invention will be briefly described below.

[0044] The power battery according to the present utility model includes: a battery housing, a battery cell module, and an information acquisition component 100. An installation cavity is formed inside the battery housing; the battery cell module is disposed in the installation cavity; the information acquisition component 100 is located in the installation cavity and is configured as the information acquisition component 100 for the battery described in any one of the above embodiments. The information acquisition component 100 is disposed between the battery housing and the battery cell module. The information acquisition component 100 is adapted to acquire information of the battery cell module and transmit the information to the battery management system to monitor the real-time condition of the battery. Since the power battery according to the present utility model is provided with the information acquisition component 100 for the battery in the above embodiment, the installation process of the power battery is less and the manufacturing cost is lower.

[0045] The vehicle according to the present utility model will be briefly described below.

[0046] The vehicle according to the present utility model includes the power battery described in the above embodiment. Since the vehicle according to the present utility model is provided with the power battery in the above embodiment, the installation of the vehicle is faster.

[0047] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0048] Although the embodiments of the present utility model have been shown and described above, changes, modifications, substitutions, and variations can be made to the above embodiments.

Claims

1. An information acquisition component (100) for a battery, characterized in that, Comprising: A separator plate (2), one surface of the separator plate (2) in the thickness direction is the first surface (21), the first surface (21) faces the battery cell module and is provided with a groove (22); A circuit board (1), at least part of the circuit board (1) is received in the groove (22), and a positioning hole (23) is provided on the bottom wall of the groove (22); A sensor (3), the sensor (3) is located on the surface of the circuit board (1) facing the first surface (21) and is electrically connected to the circuit board (1), and the sensor (3) is received in the positioning hole (23).

2. The information acquisition component (100) for a battery according to claim 1, wherein, The separator plate (2) is provided with a through hole (24) penetrating in the thickness direction, the other surface of the separator plate (2) in the thickness direction is the second surface (25), and the circuit board (1) is configured to be flexible and adapted to extend from the second surface (25) through the through hole (24) to the first surface (21).

3. The information acquisition component (100) for a battery according to claim 2, characterized in that, The second surface (25) is further provided with a groove body (26) facing the groove (22) in the thickness direction of the separator plate (2), the positioning hole (23) penetrates through the separator plate (2) in the thickness direction, and the sensor (3) extends from the groove (22) through the positioning hole (23) to the groove body (26).

4. The information acquisition component (100) for a battery according to claim 3, characterized in that, In the thickness direction of the separator plate (2), the depth of the groove body (26) is d, and the height of the part of the sensor (3) exposed from the groove body (26) is h, and it satisfies: d≥h.

5. The information acquisition component (100) for a battery according to claim 1, characterized in that, The sensor (3) is configured as at least one of a temperature sensor and a voltage sensor.

6. The information acquisition component (100) for a battery according to claim 5, wherein, The sensor (3) is configured as a temperature sensor, the circuit board (1) has a sensor installation area, the sensor installation area is suitable for setting the temperature sensor, and a heat conducting pad (4) is further provided on the surface of the sensor installation area facing the cell module.

7. The information acquisition component (100) for a battery according to claim 1, wherein, The sensor (3) is connected to the circuit board (1) by one of hot pressing connection, plug-in connection and surface mounting connection.

8. The information acquisition component (100) for a battery according to claim 3, characterized in that The through holes (24) are configured to be two and are respectively arranged on both sides of the groove body (26).

9. A power battery, characterized in that, Comprising: A battery housing, an installation cavity is formed in the battery housing; A cell module, the cell module is arranged in the installation cavity; An information acquisition component (100), the information acquisition component (100) is located in the installation cavity and is configured as the information acquisition component (100) for a battery according to any one of claims 1-8, and the information acquisition component (100) is arranged between the battery housing and the cell module.

10. A vehicle, characterized in that, Including the power battery according to claim 9.

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