Adapter module, battery module, battery pack and vehicle

Abstract

The adapter module (1), the battery module (2), the battery pack (3), and the vehicle (4). The adapter module (1) includes a support member (10), a low-voltage plug member (20), a sampling assembly (30), and an electrode lead piece (40). The low-voltage plug member (20) is provided on the support member (10). One end of the sampling assembly (30) is provided on the support member, and the illustrated end of the sampling assembly (30) is electrically connected to the low-voltage plug member (20), and the sampling assembly (30) is used for voltage sampling and / or temperature sampling. The electrode lead piece (40) is provided on the support member (10), is spaced from the low-voltage plug member (20), and is electrically connected to the illustrated end of the sampling assembly (30).

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This disclosure is a related application of China Patent Application No. "202210437312.3" entitled "ADAPTER MODULE, BATTERY MODULE, BATTERY PACK, AND VEHICLE" filed by BYD Company Limited on April 21, 2022, and claims priority to and benefit of this patent application.

[0002] Technical Field The present disclosure relates to the field of vehicle technology, and in particular to an adapter module, a battery module, a battery pack, and a vehicle. [Background technology]

[0003] Conventionally, the adapter module is generally provided as a ceramic cover structure, and is formed by a cover body, a positive terminal, a negative terminal, a positive lead piece, a negative lead piece, a ceramic terminal, a plug member, and a sampling assembly. However, the adapter module has a large number of parts and is low in integration, which results in high cost and many inconveniences in use. Summary of the Invention [Means for solving the problem]

[0004] The present disclosure is intended to solve at least one of the technical problems existing in the prior art. Therefore, the present disclosure provides an adapter module, which can improve the integration of the adapter module, reduce unnecessary components, reduce the manufacturing cost of the adapter module, and facilitate plugging and mating between the adapter module and an external component, so that the sampling assembly can better sample the battery core.

[0005] The present disclosure further provides a battery module that uses the aforementioned adapter module.

[0006] The present disclosure further provides a battery pack using the above battery module.

[0007] The present disclosure further provides a vehicle using the above battery pack.

[0008] An adapter module according to a first aspect of the present disclosure includes a support member, a low-voltage plug member, a sampling assembly, and an electrode lead piece. The low-voltage plug member is provided on the support member. One end of the sampling assembly is disposed on the support member. One end of the sampling assembly is electrically connected to the low-voltage plug member. The sampling assembly is configured to perform voltage sampling and / or temperature sampling. The electrode lead piece is provided on the support member, spaced apart from the low-voltage plug member, and electrically connected to one end of the sampling assembly.

[0009] In the adapter module according to this embodiment of the present disclosure, the low-voltage plug member, one end of the sampling assembly, and the electrode lead piece are all provided on the support member, so that the integration of the adapter module can be improved and unnecessary components can be reduced, thereby reducing the manufacturing cost of the adapter module. Moreover, such a configuration facilitates the plug connection and mating between the adapter module and the external components, and the sampling assembly can better sample the battery cores.

[0010] In one embodiment, the electrode lead piece is snap-fitted to the support member.

[0011] In one embodiment, the support member includes an outer frame, a support, and a positioning body. The support is disposed in the center of the outer frame. The positioning body is disposed on an edge of the outer frame. The positioning body is located on each side of the support. The electrode drawer piece has a positive electrode drawer piece and a negative electrode drawer piece. A part of the positive electrode drawer piece and a part of the negative electrode drawer piece are positioned and fitted into the corresponding positioning body. Another part of the positive electrode drawer piece and another part of the negative electrode drawer piece are snap-fitted into two side surfaces of the support, respectively.

[0012] In one embodiment, the electrode lead piece further includes an inner connection piece, a connection piece, and an outer connection piece. The connection piece is folded and connected between the inner connection piece and the outer connection piece. The outer connection piece is positioned and fitted into the positioning body. The first snap connection piece is disposed on the inner connection piece. The second snap connection piece is disposed on a side surface of the support. The first snap connection piece is snap-fitted into the second snap connection piece.

[0013] In one embodiment, at least two first snap connection pieces are provided, the at least two first snap connection pieces being located at two ends of the inner connection piece along the length direction, respectively. At least two second snap connection pieces are provided, the at least two second snap connection pieces being snap-fitted with the at least two first snap connection pieces in one-to-one correspondence.

[0014] In one embodiment, the first snap connection piece is a snap groove arranged at the end of the inner connection piece, and the second snap connection piece is a snap protrusion arranged at the side of the support. The snap protrusion is snap-fitted into the snap groove.

[0015] In one embodiment, the third snap connection piece is arranged on a side of the support, the third snap connection piece being snap-connected to the end of the outer connection piece connected to the connection piece.

[0016] In one embodiment, a groove is provided on the side of the support. The third snap connection piece is an elastic snap. The elastic snap is disposed in the groove.

[0017] In one embodiment, the first positioning piece is disposed on the outer connection piece, and the second positioning piece is disposed on the positioning body. One of the first positioning piece and the second positioning piece is a positioning post. The other of the first positioning piece and the second positioning piece is a positioning hole. The positioning post fits into the positioning hole.

[0018] In one embodiment, the low voltage plug member and the support member are an integrally formed structural member. Alternatively, the support member is provided with a holder. The low voltage plug member is fixed to the holder.

[0019] In one embodiment, the sampling assembly includes a sampling line and an electrical connection board. The electrical connection board is disposed at an end of the sampling line and electrically connected to the low voltage plug member. The electrical connection board is further electrically connected to the electrode lead piece.

[0020] A battery module according to an embodiment of the second aspect of the present disclosure includes a plurality of battery cores. The plurality of battery cores are connected in series. In an adapter module according to an embodiment of the first aspect of the present disclosure, a support member is disposed at an end of the plurality of battery cores. The electrode lead pieces are connected at their front and rear ends to electrodes corresponding to the battery cores. A sampling assembly is disposed on one side of the plurality of battery cores to perform voltage sampling and / or temperature sampling.

[0021] A battery pack according to an embodiment of the third aspect of the present disclosure includes a battery module according to an embodiment of the second aspect of the present disclosure.

[0022] A vehicle according to an embodiment of the fourth aspect of the present disclosure includes a battery pack according to an embodiment of the third aspect of the present disclosure.

[0023] Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be apparent from the description, or may be learned through the practice of the disclosure.

[0024] The foregoing and / or additional aspects and advantages of the present disclosure will become apparent and understandable in the following description taken in conjunction with the accompanying drawings. [Brief description of the drawings]

[0025] [Figure 1] FIG. 2 is a schematic structural diagram of an adapter module according to an embodiment of the present disclosure. [Diagram 2] 1 is a schematic partial structural diagram of an adapter module according to an embodiment of the present disclosure; [Diagram 3] FIG. 2 is an exploded view of an adapter module according to one embodiment of the present disclosure. [Figure 4] FIG. 2 is a schematic structural diagram of a battery module according to another embodiment of the present disclosure. [Diagram 5] 1 is a schematic diagram of a vehicle according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are illustrated in the accompanying drawings, in which the same or similar elements, or elements having the same or similar functions, are designated with the same or similar reference numerals throughout the description. The embodiments described below with reference to the accompanying drawings are illustrative and are intended to explain the present disclosure, and cannot be construed as limiting the present disclosure.

[0027] In describing the present disclosure, the directions or positional relationships indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "middle", and "outer" should be understood to be directions or positional relationships indicated based on the accompanying drawings. These terms are merely for the convenience of describing and simplifying the present disclosure, and do not indicate or imply that the devices or elements referred to have a particular orientation and must be constructed and operated in a particular orientation, and therefore cannot be understood as limitations on the present disclosure.

[0028] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying a relative importance or number of technical features depicted. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. Furthermore, in the description of this disclosure, unless otherwise specified, "plurality" means two or more than two.

[0029] Hereinafter, an adapter module 1 and a battery module 2 according to an embodiment of the present disclosure will be described with reference to Figs. 1 to 4. The adapter module 1 is disposed on the battery module 2. The battery module 2 includes a battery core 50. The adapter module 1 can adapt the output signal and / or input signal of the battery core 50, for example, convert the current, and convert the current input and / or output between DC and AC, thereby enabling the battery core 50 to operate normally.

[0030] As shown in FIGS. 1 to 3, an adapter module 1 according to an embodiment of the first aspect of the present disclosure includes a support member 10, a low-voltage plug member 20, a sampling assembly 30, and an electrode lead piece 40. The support member 10 may realize a support function. In general, the support member 10 is disposed on the battery core 50 to facilitate a connection between the entire adapter module 1 and the battery core 50. The low-voltage plug member 20 is mainly configured to plug into an external component, so that the battery core 50 can transmit a signal to the external component. The support member 10 may be a plastic support member 10.

[0031] The sampling assembly 30 may sample the battery core 50. Specifically, the sampling assembly 30 may be configured to perform voltage sampling and / or temperature sampling. In this way, the sampling assembly 30 can collect the voltage and temperature information of the battery core 50 in real time, and compare the collected voltage and temperature information with normal values ​​to protect the battery core 50 and ensure the normal operation of the battery core 50. Indeed, the sampling assembly 30 is not limited to collecting the voltage and temperature information of the battery core 50, and may also collect, for example, current information between the battery core 50. In addition, the electrode lead piece 40 may be connected to the battery core 50 to facilitate electrical connection between the battery core 50 and other components.

[0032] The low-voltage plug member 20 is provided on the support member 10 as shown in FIG. 1 and FIG. 2. One end of the sampling assembly 30 is provided on the support member 10. One end of the sampling assembly 30 is electrically connected to the low-voltage plug member 20. The electrode lead piece 40 is provided on the support member 10, separated from the low-voltage plug member 20, and electrically connected to one end of the sampling assembly 30. That is, the electrode lead piece 40 is provided on the support member 10, connected to the battery core 50, and electrically connected to one end of the sampling assembly 30. In this way, the sampling assembly 30 is connected to the battery core 50 by the electrode lead piece 40 and can sample the battery core 50, thereby ensuring the normal operation of the battery core 50. One end of the sampling assembly 30 is provided on the support member 10, and one end of the sampling assembly 30 is electrically connected to the low-voltage plug member 20. In this way, the low-voltage plug member 20 can be further electrically connected to the battery core 50 by the sampling assembly 30, and therefore can transmit a signal to the battery core 50. In addition, by separating the electrode draw-out piece 40 from the low-voltage plug member 20, arrangement can be made easier, and interference between the electrode draw-out piece 40 and the low-voltage plug member 20 can be prevented from affecting the normal operation of the adapter module 1.

[0033] Therefore, since the low-voltage plug member 20, one end of the sampling assembly 30, the electrode lead piece 40, and the low-voltage plug member 20 are all provided on the support member 10, it is possible to improve the integration of the adapter module 1, reduce unnecessary components, and reduce the manufacturing cost of the adapter module 1. In addition, such an arrangement facilitates insertion and engagement between the adapter module 1 and external components, and allows the sampling assembly 30 to better sample the battery cores 50.

[0034] Optionally, the electrode lead piece 40 is snap-fitted to the support member 10, as shown in Figures 1 and 2. The electrode lead piece 40 and the support member 10 can be fitted together in a snap-connection manner. In this way, the connection between the electrode lead piece 40 and the support member 10 can be made stronger and more reliable. In addition, with the snap-connection manner, it is easier and more convenient to assemble the electrode lead piece 40 and the support member 10, thereby improving the assembly efficiency.

[0035] Specifically, as shown in Figs. 1 to 3, the support member 10 has an outer frame 11, a support 12, and a positioning body 13. The support 12 is disposed midway through the outer frame 11. The positioning body 13 is disposed at an edge of the outer frame 11. The positioning bodies 13 are located on both sides of the support 12. The electrode drawn piece 40 includes a positive electrode drawn piece 41 and a negative electrode drawn piece 42. A part of the positive electrode drawn piece 41 and a part of the negative electrode drawn piece 42 are positioned and fitted into the corresponding positioning bodies 13. The other part of the positive electrode drawn piece 41 and the other part of the negative electrode drawn piece 42 are snap-fitted into both side surfaces of the support 12, respectively.

[0036] The outer frame 11 can realize the mounting function. The support 12 is the main part of the support member 10 and can realize the supporting function. And the positioning body 13 can realize the positioning function. The positive electrode pull-out piece 41 and the negative electrode pull-out piece 42 are respectively connected to the positive electrode and the negative electrode of the battery core 50, and the battery core 50 can transmit signals. The support 12 is disposed in the center of the outer frame 11. In this way, the outer frame 11 leaves mounting space on both sides of the support 12. And the positioning body 13 is disposed on the edge of the outer frame 11, and the positioning body 13 is respectively located on both sides of the support 12. In this way, when the positive electrode pull-out piece 41 and the negative electrode pull-out piece 42 are mounted, at least a part of them needs to be positioned and fitted with the corresponding positioning body 13. In this way, it is convenient to align and mount the positive electrode pull-out piece 41 and the negative electrode pull-out piece 42, and the positions of the positive electrode pull-out piece 41 and the negative electrode pull-out piece 42 can be fixed to a certain extent. Additionally, another part of the positive electrode drawn piece 41 and another part of the negative electrode drawn piece 42 are further snap-fitted to both side surfaces of the support body 12. In this manner, the positive electrode drawn piece 41 and the negative electrode drawn piece 42 can be further fixed, so that the connection between the positive electrode drawn piece 41 and the support member 10 and the connection between the negative electrode drawn piece 42 and the support member 10 becomes more stable and reliable.

[0037] As shown in FIG. 2 and FIG. 3, the electrode lead piece 40 further includes an inner connection piece 43, a connection piece 44, and an outer connection piece 45. The connection piece 44 is bent and connected between the inner connection piece 43 and the outer connection piece 45. The outer connection piece 45 is positioned and fitted to the positioning body 13. The first snap connection piece 46 is disposed on the inner connection piece 43, and the second snap connection piece 14 is disposed on the side surface of the support 12. The first snap connection piece 46 is snap-fitted to the second snap connection piece 14. The connection piece 44 can realize a connection function. The connection piece 44 is connected between the inner connection piece 43 and the outer connection piece 45. In this way, the electrode lead piece 40 can be connected as a whole, and the overall installation and arrangement of the electrode lead piece 40 is facilitated. In addition, the connection piece 44 is bent and arranged. In this way, the structure of the electrode lead piece 40 can be adapted to the structure of the support member 10, and the electrode lead piece 40 can be fixed to the support member 10 better.

[0038] The outer connection piece 45 is positioned and fitted into the positioning body 13. In this way, it is convenient to align and attach the electrode lead piece 40 and the support member 10, a foolproof function can be realized, and the positions of the positive electrode lead piece 41 and the negative electrode lead piece 42 can be fixed to a certain extent. The first snap connection piece 46 is disposed on the inner connection piece 43, and the second snap connection piece 14 is disposed on the side of the support 12. The first snap connection piece 46 can be snapped into the second snap connection piece 14, so that the electrode lead piece 40 can be more firmly installed on the support member 10, and the electrode lead piece 40 can operate more stably.

[0039] Also, as shown in FIG. 2 and FIG. 3, at least two first snap connection pieces 46 are provided. The at least two first snap connection pieces 46 are located at both ends of the inner connection piece 43 along the length direction, respectively. At least two second snap connection pieces 14 are provided. The at least two second snap connection pieces 14 are snap-fitted to the at least two first snap connection pieces 46 in a one-to-one correspondence. At least two first snap connection pieces 46 and at least two second snap connection pieces 14 are provided. Furthermore, the at least two first snap connection pieces 46 are located at both ends of the inner connection piece 43 along the length direction, respectively. The at least two second snap connection pieces 14 are snap-fitted to the at least two first snap connection pieces 46 in a one-to-one correspondence. Both ends of the inner connection piece 43 along the length direction can be stably provided on the support member 10, thereby ensuring that the electrode lead piece 40 is stably provided on the support member 10.

[0040] As shown in FIG. 2 and FIG. 3, the first snap connection piece 46 is a snap groove provided at the end of the inner connection piece 43, and the second snap connection piece 14 is a snap protrusion disposed on the side of the support 12. The snap protrusion is snap-fitted into the snap groove. The first snap connection piece 46 is configured as a snap groove, and the second snap connection piece 14 is configured as a snap protrusion. The snap protrusion is snap-connected into the snap groove, so that the electrode lead piece 40 can be fixed to the support member 10. In addition, the snap protrusion and the snap groove have a simple structure and are easy to process. In addition, the snap protrusion and the snap groove are snap-fitted during assembly, making the operation easier and more convenient.

[0041] 1 and 3, the third snap connection piece 15 is disposed on the side surface of the support 12. The third snap connection piece 15 is snap-connected to the end of the outer connection piece 45 connected to the connection piece 44. The third snap connection piece 15 is disposed on the side surface of the support 12, and the third snap connection piece 15 is snap-connected to the end of the outer connection piece 45 connected to the connection piece 44. In this manner, the electrode lead piece 40 can be further fixed, the position of the electrode lead piece 40 is defined, and rattling or displacement of the electrode lead piece 40 during operation can be prevented, allowing the electrode lead piece 40 to operate more stably.

[0042] Indeed, as shown in FIG. 3, a groove 16 is provided on the side surface of the support 12, and the third snap connection piece 15 is an elastic snap. The elastic snap is disposed in the groove 16. It will be understood that when the electrode lead piece 40 is assembled to the support member 10, the third snap connection piece 15 must be pressed first. The groove 16 is provided on the side surface of the support 12, and the third snap connection piece 15 is an elastic snap. The elastic snap is elastically deformable. When the third snap connection piece 15 is pressed, the third snap connection piece 15 can stay in the groove 16 for avoidance, so that the electrode lead piece 40 can be better assembled in the support member 10. After the electrode lead piece 40 is assembled to the support member 10, the pressure on the third snap connection piece 15 is released. In this case, the third snap connection piece 15 automatically returns to its original position due to its elastic performance, so that the position of the electrode lead piece 40 is limited by the snap connection.

[0043] Also, as shown in FIG. 1 and FIG. 3, the first positioning piece 47 is disposed on the outer connection piece 45, and the second positioning piece 17 is disposed on the positioning body 13. One of the first positioning piece 47 and the second positioning piece 17 is a positioning post, and the other of the first positioning piece 47 and the second positioning piece 17 is a positioning hole. The positioning post fits into the positioning hole. In other words, one of the outer connection piece 45 and the positioning body 13 is provided with a positioning post, and the other of the outer connection piece 45 and the positioning body 13 is provided with a positioning hole. The positioning post fits into the positioning hole. In this way, the positioning function and the guiding function can be realized, and as a result, the outer connection piece 45 can be assembled more accurately to the positioning body 13 to realize a foolproof function. Also, a certain degree of fixing function can be realized by the positioning fit between the positioning post and the positioning hole, and the electrode lead piece 40 is fixed to the support member 10.

[0044] According to an optional embodiment of the present disclosure, as shown in FIGS. 1 to 3, the low-voltage plug member 20 and the support member 10 are integrally formed structural members, or the support member 10 is provided with a holder 18, and the low-voltage plug member 20 is fixed to the holder 18. The low-voltage plug member 20 and the support member 10 may be integrally formed structural members. In this way, the connection between the low-voltage plug member 20 and the support member 10 is stronger, and the reliability of the connection between the low-voltage plug member 20 and the support member 10 can be improved. Alternatively, the support member 10 is provided with a holder 18. The low-voltage plug member 20 may first be pre-fixed to the holder 18 in a plug manner, and then the low-voltage plug member 20 is fixed to the holder 18 by soldering or thermal melting. In this way, it is convenient to manufacture the low-voltage plug member 20 and the support member 10, and is less likely to interfere with other components during the assembly of the low-voltage plug member 20 and the support member 10.

[0045] Further, as shown in FIG. 1 to FIG. 3, the sampling assembly 30 includes a sampling line 31 and an electrical connection board 32. The electrical connection board 32 is disposed at an end of the sampling line 31. The electrical connection board 32 is electrically connected to the plug member. Also, the electrical connection board 32 is electrically connected to the electrode lead piece 40. The sampling line 31 can realize the sampling function, and the electrical connection board 32 can realize the control function. The electrical connection board 32 is disposed at an end of the sampling line 31. The information collected by the sampling line 31 can be transmitted to the electrical connection board 32. The electrical connection board 32 can process the information, thereby ensuring the normal operation of the battery core 50. The electrical connection board 32 is electrically connected to the low-voltage plug member 20, and the electrical connection board 32 is also electrically connected to the electrode lead piece 40. In this way, the electrical connection board 32 can control both the low-voltage plug member 20 and the battery core 50, and converts signals transmitted between the low-voltage plug member 20 and the battery core 50 to enable the battery core 50 to output and / or input required signals, thereby ensuring the normal operation of the battery core 50.

[0046] As shown in FIG. 4, a battery module 2 according to an embodiment of the second aspect of the present disclosure includes a plurality of battery cores 50 and an adapter module 1 according to an embodiment of the first aspect of the present disclosure. The plurality of battery cores 50 are connected in series. The support member 10 is disposed at the ends of the plurality of battery cores 50. The electrode lead pieces 40 are respectively connected to the electrodes corresponding to the battery cores 50 at the front and rear ends. The sampling assembly 30 is disposed on one side of the plurality of battery cores 50 to perform voltage sampling and / or temperature sampling. In other words, after the plurality of battery cores 50 are connected in series, the battery cores 50 at both ends may form a U-shaped structure, and the support member 10 may be disposed at one end of both ends. Also, the electrode lead pieces 40 may be connected at ends to the battery cores 50 connected end to end, and the ends of the sampling assembly 30 are also located at the ends. In this way, during the operation of the plurality of battery cores 50, the sampling assembly 30 can better sample the voltage and temperature of the battery cores 50 to ensure that the plurality of battery cores 50 can operate normally. Indeed, the sampling assembly 30 may also sample the end-to-end connected battery cores 50 at the center, or may sample the end-to-end connected battery cores 50 at the other end.

[0047] As shown in FIG. 5, a battery pack 3 according to an embodiment of the third aspect of the present disclosure includes a battery module 2 according to an embodiment of the second aspect of the present disclosure.

[0048] As shown in FIG. 5, a vehicle 4 according to an embodiment of the fourth aspect of the present disclosure includes a battery pack 3 according to an embodiment of the third aspect of the present disclosure.

[0049] In the description herein, the description of a reference term such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "particular example," or "some examples" means that the particular feature, structure, material, or characteristic described with reference to the embodiment or example is included in at least one embodiment or example of the present disclosure. In the present specification, general descriptions of the aforementioned terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0050] Although embodiments of the present disclosure have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions, and variations could be made to the embodiments without departing from the principles and objectives of the present disclosure, and the scope of the present disclosure is defined by the appended claims and their equivalents. [Explanation of symbols]

[0051] 1 Adapter Module 10 Support member 11 Outer frame 12 Support 13 Positioning body 14 Second snap connection piece 15 Third snap connection piece 16 groove 17 Second positioning piece 18 Holder 20 Low voltage plug components 30 Sampling Assembly 31 Sampling Line 32 Electrical connection board 40 Electrode lead piece 41 Positive electrode pull-out piece 42 Negative electrode lead piece 43 Inner connection piece 44 Connection piece 45 Outer connection piece 46 First snap connection piece 47 First positioning piece 2 Battery Module 50 Battery Core 3 Battery pack 4. Vehicles

Claims

1. An adapter module (1), A support member (10); a low voltage plug member (20) disposed on the support member (10); a sampling assembly (30), one end of the sampling assembly (30) being disposed on the support member (10), the one end of the sampling assembly (30) being electrically connected to the low-voltage plug member (20), the sampling assembly (30) being configured to perform voltage sampling and / or temperature sampling; an electrode lead piece (40) disposed on the support member (10), spaced apart from the low-voltage plug member (20), and electrically connected to the one end of the sampling assembly (30); The adapter module (1) comprises:

2. 2. The adapter module (1) according to claim 1, wherein the electrode lead piece (40) is snap-fitted to the support member (10).

3. The support member (10) comprises an outer frame (11), a support (12), and a positioning body (13), the support (12) being disposed at the center of the outer frame (11), the positioning body (13) being disposed at an edge of the outer frame (11), and the positioning body (13) being disposed on both side surfaces of the support (12), The adapter module (1) of claim 2, wherein the electrode drawer piece (40) comprises a positive electrode drawer piece (41) and a negative electrode drawer piece (42), a portion of the positive electrode drawer piece (41) and a portion of the negative electrode drawer piece (42) are positioned and fitted into the corresponding positioning body (13), and another portion of the positive electrode drawer piece (41) and another portion of the negative electrode drawer piece (42) are snap-fitted into both side surfaces of the support body (12), respectively.

4. 4. The adapter module (1) of claim 3, wherein the electrode lead piece (40) further comprises an inner connection piece (43), a connection piece (44), and an outer connection piece (45), the connection piece (44) is folded and connected between the inner connection piece (43) and the outer connection piece (45), the outer connection piece (45) is positioned and fitted into the positioning body (13), a first snap connection piece (46) is arranged on the inner connection piece (43), a second snap connection piece (14) is arranged on a side of the support (11), and the first snap connection piece (46) is snap-fitted into the second snap connection piece (14).

5. 5. An adapter module (1) as claimed in claim 4, wherein at least two first snap connection pieces (46) are provided, said at least two first snap connection pieces (46) being located at two ends of said inner connection piece (43) respectively along the length direction, and wherein at least two second snap connection pieces (14) are provided, said at least two second snap connection pieces (14) being snap-fitted to said at least two first snap connection pieces (46) in a one-to-one correspondence.

6. 6. An adapter module (1) as claimed in claim 4 or 5, wherein the first snap connection piece (46) is a snap groove arranged at the end of the inner connection piece (43) and the second snap connection piece (14) is a snap protrusion arranged on a side of the support (11), the snap protrusion being snap-fitted into the snap groove.

7. An adapter module (1) according to any one of claims 3 to 6, wherein a third snap connection piece (15) is arranged on a side of the support (11), the third snap connection piece (15) being snap-connected to an end of the outer connection piece (45) connected to the connection piece (44).

8. 8. The adapter module (1) according to claim 7, wherein a groove (16) is arranged on a side of the support (11), and the third snap connection piece (15) is an elastic snap, the elastic snap being arranged in the groove (16).

9. An adapter module (1) according to any one of claims 3 to 8, wherein a first positioning piece (47) is arranged on the outer connection piece (45), a second positioning piece (17) is arranged on the positioning body (13), one of the first positioning piece (47) and the second positioning piece (17) is a positioning post, and the other of the first positioning piece (47) and the second positioning piece (17) is a positioning hole, and the positioning post fits into the positioning hole.

10. the low voltage plug member (20) and the support member (10) are integrally formed structural members; or 10. The adapter module (1) according to any one of the preceding claims, wherein a holder (18) is arranged on the support member (10) and the low-voltage plug member (20) is fixed to the holder (18).

11. The sampling assembly (30) comprises a sampling line (31) and an electrical connection board (32), the electrical connection board (32) being arranged at the end of the sampling line (31), electrically connected to the low-voltage plug member (20), and further electrically connected to the electrode lead piece (40), an adapter module (1) as described in any one of claims 1 to 10.

12. A battery module (2), A plurality of battery cores (50) connected in series; 12. The adapter module (1) according to any one of claims 1 to 11, wherein the support member (10) is disposed at an end of the plurality of battery cores (50), the electrode lead pieces (40) are connected to electrodes corresponding to the battery cores (50) at their front and rear ends, respectively, and the sampling assembly (30) is disposed on one side of the plurality of battery cores (50) to perform voltage sampling and / or temperature sampling; and A battery module (2).

13. A battery pack (3) comprising a battery module (2) according to claim 12.

14. A vehicle (4) comprising a battery pack (3) according to claim 13.

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