Cover plate assembly and battery

Abstract

The utility model discloses a cover plate assembly and a battery, the cover plate assembly comprises a cover plate body, a monitoring device, a conductive member and a fixing member, the cover plate body is provided with a first pole and a second pole; the monitoring device is mounted on one side of the cover plate body, and the monitoring device is located between the first pole and the second pole; the conductive piece is connected with the monitoring device, the first pole and the second pole; the conductive part is located between the cover plate body and the fixing part, and the fixing part is detachably connected with the cover plate body so as to fix the conductive part. The battery is used for supplying power to the monitoring device, a power source does not need to be independently arranged for supplying power to the monitoring device, the number of parts is reduced, cost is reduced, the fixing piece is detachably connected with the cover plate body, the conductive piece is fixed, the occupied space in the battery is small, and mounting and dismounting operation is easy.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of batteries, and particularly relates to a cover plate assembly and a battery. BACKGROUND

[0002] With the development of lithium batteries, lithium batteries are widely used in the automobile, electronic product and energy storage system industries. However, during the use of lithium batteries, because of the imbalance of single batteries (such as the imbalance of the internal temperature and air pressure of the battery, the abnormal precipitation or decomposition of materials, the corrosion and leakage of the battery, and the abnormal electrical performance of the battery), the lithium battery has a safety hazard. In the related technology, a monitoring device is arranged to collect battery-related information, the safety performance of the battery is judged according to the collected information, and corresponding safety treatment measures are taken in time. The monitoring device is installed in the battery, and a power supply needs to be arranged to supply power to the monitoring device. However, the internal space of the battery is limited, and the operation is difficult. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the application provide a cover plate assembly and a battery to solve the problem of power supply of the existing monitoring device.

[0004] In a first aspect, the embodiments of the application provide a cover plate assembly, comprising:

[0005] a cover plate body, a first pole and a second pole are arranged on the cover plate body;

[0006] a monitoring device, which is installed on one side of the cover plate body and located between the first pole and the second pole;

[0007] a conductive part, which connects the monitoring device and the first pole and the second pole;

[0008] a fixing part, the conductive part is located between the cover plate body and the fixing part, and the fixing part is detachably connected with the cover plate body to fix the conductive part.

[0009] Optionally, a mounting groove is arranged on one side surface of the cover plate body, and the conductive part is installed in the mounting groove.

[0010] Optionally, the thickness of the cover plate body is D1, and the depth of the mounting groove is H, wherein 2mm≤D1≤10mm and 0.3mm≤H≤0.8mm.

[0011] Optionally, a limiting protrusion is arranged on one side surface of the cover plate body, and the limiting protrusion is located on both sides of the conductive part.

[0012] Optionally, the thickness of the cover plate body is D1, and the protruding height of the limiting protrusion is D2, wherein 0<D1<1mm and 1mm≤D1+D2≤3mm.

[0013] Optionally, the electrically conductive member and the cover plate body are bonded by glue.

[0014] Optionally, the electrically conductive member comprises a first electrically conductive sheet and a second electrically conductive sheet, one end of the first electrically conductive sheet is connected with the monitoring device, and the other end is connected with the first pole; one end of the second electrically conductive sheet is connected with the monitoring device, and the other end is connected with the second pole.

[0015] Optionally, the fixing member comprises a first fastening member and a second fastening member which are respectively detachably connected with the cover plate body, the first electrically conductive sheet is located between the first fastening member and the cover plate body, and the second electrically conductive sheet is located between the second fastening member and the cover plate body.

[0016] Optionally, the fixing member comprises a pressing plate and a clamping portion, the clamping portion is arranged on the side of the pressing plate close to the cover plate body, and the cover plate body is provided with a clamping matching portion matched with the clamping portion.

[0017] Optionally, the pressing plate is provided with a first avoiding area, and the first pole or the second pole is located in the first avoiding area.

[0018] Optionally, the side of the pressing plate close to the cover plate body is provided with a limiting groove, and the electrically conductive member is located in the limiting groove.

[0019] Optionally, the monitoring device comprises a collecting member and a pressing cover, the pressing cover and the cover plate body enclose a containing space, and the collecting member is located in the containing space.

[0020] Optionally, the fixing member is integrally formed with the pressing cover.

[0021] Optionally, the cover plate body is further provided with an explosion-proof valve, and the monitoring device is located on at least one side of the explosion-proof valve.

[0022] Optionally, the width of the cover plate body is L, and the width of the monitoring device is l, wherein 0 < l ≤ 0.3L, and along the width direction of the cover plate body, the monitoring device is located on one side of the explosion-proof valve.

[0023] Optionally, a connecting sheet is further arranged on the side of the fixing member away from the cover plate body, and the connecting sheet is connected with the first pole and the second pole.

[0024] Optionally, the connecting sheet is provided with a second avoiding area, and the monitoring device is located in the second avoiding area.

[0025] In a second aspect, the embodiments of the present application further provide a battery comprising the cover plate assembly as described in any one of the above.

[0026] The cover plate assembly and the battery provided by the embodiment of the present application, the cover plate assembly comprises a cover plate body, a monitoring device, a conductive piece and a fixing piece, the cover plate body is provided with a first pole and a second pole, the monitoring device is electrically connected with the first pole and the second pole through the conductive piece, the monitoring device is powered by the battery, a power supply for powering the monitoring device is not needed, the number of parts is reduced, the cost is reduced, the fixing piece is detachably connected with the cover plate body, the conductive piece is fixed, the space occupied in the battery is small, and the mounting and dismounting operation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0028] In order to more completely understand the present application and its beneficial effects, the following will be described with reference to the drawings. In the following description, the same reference numerals represent the same parts.

[0029] Figure 1 The structural schematic diagram of one form of the cover plate assembly provided by the embodiment of the present application.

[0030] Figure 2 The exploded view of one form of the cover plate assembly provided by the embodiment of the present application.

[0031] Figure 3 The partial exploded view of the first form of the cover plate assembly provided by the embodiment of the present application.

[0032] Figure 4 The partial exploded view of the second form of the cover plate assembly provided by the embodiment of the present application.

[0033] Figure 5 The structural schematic diagram of the third form of the cover plate assembly provided by the embodiment of the present application.

[0034] Figure 6 The exploded view of Figure 5 .

[0035] Figure 7 The structural schematic diagram of the fixing piece provided by the embodiment of the present application.

[0036] Figure 8 The structural schematic diagram of the fourth form of the cover plate assembly provided by the embodiment of the present application.

[0037] Figure 9 The exploded view of Figure 8 .

[0038] The reference numerals are:

[0039] 100, cover plate assembly;

[0040] 110, cover plate body; 111, first pole column; 112, second pole column; 113, mounting groove; 114, limiting protrusion; 115, explosion-proof valve;

[0041] 120, monitoring device; 121, collecting piece; 122, gland; 123, containing space;

[0042] 130, conductive piece; 131, first conductive sheet; 132, second conductive sheet;

[0043] 140, fixing piece; 141, first buckling piece; 142, second buckling piece; 143, pressing plate; 144, clamping part; 145, clamping matching part; 146, first avoiding area; 147, limiting groove;

[0044] 150, connecting piece; 151, second avoiding area.122 DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative labor fall within the scope of protection of the present application.

[0046] Referring to Figure 1 and Figure 2 , the present embodiment provides a cover plate assembly 100 applied to a battery, the battery comprising the cover plate assembly 100, a shell and a battery cell, the cover plate assembly 100 and the shell enclosing a containing space, the battery cell being installed in the shell, and the cover plate assembly 100 being connected with the battery cell. The cover plate assembly 100 of the present embodiment comprises a cover plate body 110, a monitoring device 120, a conductive piece 130 and a fixing piece 140.

[0047] In the present embodiment, referring to Figure 1The cover plate body 110 is a rectangular plate structure, and the material of the cover plate body 110 is a plastic material. The cover plate body 110 can be a one-layer plate structure, or can be a multi-layer plate structure stacked together. The cover plate body 110 is provided with a first pole 111 and a second pole 112. The first pole 111 and the second pole 112 are arranged at intervals along the length direction of the cover plate body 110. The first pole 111 is close to one end of the cover plate body 110, and the second pole 112 is close to the other end of the cover plate body 110. The cover plate body 110 is provided with mounting holes, and the first pole 111 and the second pole 112 are fixed in the corresponding mounting holes and penetrate the upper and lower sides of the cover plate body 110. The first pole 111 and the second pole 112 can be cylindrical structures. The first pole 111 and the second pole 112 are made of conductive metal materials. The first pole 111 and the second pole 112 have opposite polarities. For example, the first pole 111 is a positive pole, and the second pole 112 is a negative pole. Alternatively, the first pole 111 is a negative pole, and the second pole 112 is a positive pole. The first pole 111 and the second pole 112 are used to connect the positive and negative poles of the battery cell.

[0048] In this embodiment, referring to Figure 1 The monitoring device 120 is arranged on the side of the cover plate body 110 close to the battery cell. The monitoring device 120 is used to monitor the information in the battery. For example, the pressure, temperature and other information in the battery. Along the length direction of the cover plate body 110, the monitoring device 120 is located between the first pole 111 and the second pole 112. The monitoring device 120 is spaced apart from the first pole 111 and the second pole 112 on both sides by a certain distance.

[0049] In this embodiment, referring to Figure 1 and Figure 2 The conductive part 130 is arranged on the side of the cover plate body 110 close to the battery cell, and the conductive part 130 connects the monitoring device 120 and the first pole 111 and the second pole 112. The conductive part 130 is made of conductive metal material, and the conductive part 130 can be a long strip-shaped conductive sheet structure. The monitoring device 120 is electrically connected to the first pole 111 and the second pole 112 through the conductive part 130, so as to realize the power supply of the battery to the monitoring device 120.

[0050] In this embodiment, referring to Figure 1 and Figure 2 The conductive part 130 is arranged on the side of the cover plate body 110 close to the battery cell, and the conductive part 130 is located between the cover plate body 110 and the fixing part 140. The fixing part 140 is detachably connected with the cover plate body 110 to fix the conductive part 130.

[0051] In the embodiment of the present application, the monitoring device 120 and the first and second pole columns 111 and 112 are electrically connected through the conductive part 130, and the battery is used as the power supply of the monitoring device 120, so that an external power supply is not needed to supply power to the monitoring device 120, the number of parts is reduced, and the cost is lowered. The conductive part 130 is fixed on the cover plate body 110 through the fixing part 140, so that the conductive part 130 is convenient to install and disassemble.

[0052] In some embodiments, referring to Figure 2 and Figure 3 , the cover plate body 110 is provided with a mounting groove 113 on the side surface close to the battery cell, and the shape of the mounting groove 113 is matched with the shape of the conductive part 130. For example, the conductive part 130 is in the shape of "L", and correspondingly, the shape of the mounting groove 113 is also in the shape of "L". The conductive part 130 is installed in the mounting groove 113. The fixing part 140 can be detachably connected with the cover plate body 110 around the mounting groove 113.

[0053] In the embodiment of the present application, the mounting groove 113 is formed on the cover plate body 110, and the conductive part 130 is installed in the mounting groove 113. The height space of the battery occupied by the installation of the conductive part 130 and the fixing part 140 is reduced, and the internal space of the battery is reasonably utilized. The position of the installation of the conductive part 130 is positioned through the mounting groove 113, so that the conductive part 130 is convenient to quickly install.

[0054] In some embodiments, the thickness of the cover plate body 110 is D1, the depth of the mounting groove 113 is H, 2mm≤D1≤10mm, and 0.3mm≤H≤0.8mm. The thickness of the cover plate body 110 refers to the distance between the two side surfaces of the cover plate body 110 at the position where the conductive part 130 is installed. The value of D1 can be 2mm, 3mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, or other values not listed. The value of H can be 0.3mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, or other values not listed.

[0055] In the embodiment of the present application, the thickness of the cover plate body 110 is large, and the cover plate body 110 has sufficient thickness to form the mounting groove 113, and the structure strength of the cover plate body 110 is not affected after the mounting groove 113 is formed.

[0056] In some embodiments, referring to Figure 4 , the cover plate body 110 is provided with a limiting protrusion 114 on the side surface close to the battery cell, and the limiting protrusion 114 is located on the two sides of the conductive part 130. The limiting protrusion 114 and the cover plate body 110 enclose a limiting groove, and the shape of the limiting groove is matched with the shape of the conductive part 130. The limiting protrusion 114 can quickly position the position of the installation of the conductive part 130, so that the conductive part 130 is convenient to quickly install and disassemble.

[0057] In some embodiments, the thickness of the cover plate body 110 is D1, and the protruding height of the limiting protrusion 114 is D2, wherein 0 < D1 < 1 mm, and 1 mm ≤ D1 + D2 ≤ 3 mm. The value of D1 can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, or other values not listed. The value of D1 + D2 can be 1 mm, 1.5 mm, 2 mm, 2.8 mm, 3 mm, or other values not listed.

[0058] In the embodiments of the present application, the thickness of the cover plate body 110 is thin, and by arranging the limiting protrusion 114 on the side of the cover plate body 110 close to the battery cell, the position of the conductive part 130 can be positioned, and the structural strength of the cover plate body 110 can be increased. The sum of the thickness of the cover plate body 110 and the protruding height of the limiting protrusion 114 not only meets the installation and limiting of the conductive part 130, but also occupies as little height space of the battery as possible, and does not affect the size and installation of other components in the battery.

[0059] In some embodiments, the conductive part 130 and the cover plate body 110 are bonded by glue. That is, the side of the cover plate body 110 close to the battery cell and the side of the conductive part 130 facing the cover plate body 110 are bonded by glue.

[0060] In the embodiments of the present application, the conductive part 130 and the cover plate body 110 are pre-fixed by glue, and then the fixing part 140 is installed, so as to avoid the movement of the conductive part 130 during installation, and improve the stability of the conductive part 130. In addition, when the side of the cover plate body 110 facing the battery cell is provided with the installation groove 113 or the limiting protrusion 114, the glue is filled in the limiting groove formed by the installation groove 113 and the limiting protrusion 114, so as to avoid the overflow of the glue affecting other components.

[0061] In some embodiments, referring to Figure 1 and Figure 2 , the conductive part 130 includes a first conductive sheet 131 and a second conductive sheet 132. The first conductive sheet 131 is located between the monitoring device 120 and the first pole 111, one end of the first conductive sheet 131 is connected with the monitoring device 120, and the other end is connected with the first pole 111. The second conductive sheet 132 is located between the monitoring device 120 and the second pole 112, one end of the second conductive sheet 132 is connected with the monitoring device 120, and the other end is connected with the second pole 112.

[0062] For example, referring to Figure 1 and Figure 2The cover plate assembly 100 comprises two monitoring devices 120, which are arranged at intervals along the width direction of the cover plate body 110. Each monitoring device 120 is connected with the first pole 111 and the second pole 112 through a conductive piece 130 respectively. The first conductive sheet 131 and the second conductive sheet 132 are arranged in mirror image with the monitoring device 120 as the center. The conductive piece 130 comprises the first conductive sheet 131 and the second conductive sheet 132, which are sheet structures. The first conductive sheet 131 and the second conductive sheet 132 can be made of copper, aluminum or other conductive materials. The first conductive sheet 131 and the second conductive sheet 132 each comprise a first connecting section and a second connecting section. The first connecting section is arranged in parallel with the long side of the cover plate body 110, and is close to the side edge of the cover plate body 110. The second connecting section is arranged perpendicularly to the first connecting section. One end of the first connecting section, which is away from the second connecting section, is connected with the monitoring device 120. The other end of the second connecting section, which is away from the first connecting section, is connected with the first pole 111 or the second pole 112. The other end of the second connecting section, which is away from the first connecting section, is provided with a bending structure, which facilitates the surface fitting and fixing of the first pole 111 or the second pole 112.

[0063] In some embodiments, referring to Figure 1 and Figure 2 The fixing member 140 comprises a first buckling member 141 and a second buckling member 142. The first buckling member 141 is detachably connected with the cover plate body 110. The second buckling member 142 is detachably connected with the cover plate body 110. The first conductive sheet 131 is located between the first buckling member 141 and the cover plate body 110, and the first buckling member 141 fixes the first conductive sheet 131. The second conductive sheet 132 is located between the second buckling member 142 and the cover plate body 110, and the second buckling member 142 fixes the second conductive sheet 132.

[0064] In the embodiments of the present application, the first conductive sheet 131 is fixed by the first buckling member 141, and the second conductive sheet 132 is fixed by the second buckling member 142, which facilitates the installation and dismounting operation of the conductive piece 130.

[0065] In some embodiments, referring to Figure 3 and Figure 4 The fixing member 140 comprises a pressing plate 143 and a clamping portion 144. The clamping portion 144 is arranged on the side of the pressing plate 143 close to the cover plate body 110. The cover plate body 110 is provided with a clamping matching portion 145 matched with the clamping portion 144.

[0066] For example, referring to Figure 1 and Figure 2The fixing member 140 includes a first fastening member 141 and a second fastening member 142, which have the same structure. The first fastening member 141 and the second fastening member 142 each include a pressing plate 143 and a clamping portion 144. The pressing plate 143 is a long strip plate made of insulating material. The shape of the pressing plate 143 is the same as that of the first conductive sheet 131 or the second conductive sheet 132. For example, the first conductive sheet 131 and the second conductive sheet 132 are in the shape of "L", and the corresponding pressing plate 143 is also in the shape of "L". One end of the pressing plate 143 is attached to the monitoring device 120, and the other end is attached to the edge of the first pole 111 or the second pole 112. The width of the pressing plate 143 is slightly larger than that of the first conductive sheet 131 and the second conductive sheet 132. The two side edges of the pressing plate 143 are provided with a plurality of clamping portions 144, which are arranged at intervals along the length direction of the pressing plate 143. The cover plate body 110 is provided with a clamping cooperating portion 145 at a position corresponding to the clamping portion 144. The clamping portion 144 is a clamping protrusion, and the corresponding clamping cooperating portion 145 is a clamping groove. The pressing plate 143 is fastened and locked with the cover plate body 110 through the clamping portion 144 and the clamping cooperating portion 145, which is simple in structure and convenient to operate.

[0067] In some embodiments, referring to Figure 8 and Figure 9 , the fixing member 140 is a patch, and the patch is provided with a first avoiding area 146, in which the first pole 111 or the second pole 112 is located. The patch is attached to the cover plate body 110 to fix the conductive member 130 between the patch and the cover plate body 110.

[0068] In some embodiments, referring to Figure 6 and Figure 7 , the pressing plate 143 is provided with a first avoiding area 146, in which the first pole 111 or the second pole 112 is located.

[0069] For example, the pressing plate 143 is in the shape of a rectangular plate, and the pressing plate 143 is provided with a first avoiding area 146, in which the first pole 111 or the second pole 112 is located, to avoid interference between the pressing plate 143 and the first pole 111 or the second pole 112. The opening of the first avoiding area 146 at one end close to the monitoring device 120 is smaller than that at the other end. At this time, the clamping cooperating portion 145 on the cover plate body 110 is a clamping protrusion, and the clamping portion 144 on the pressing plate 143 is a limiting through hole.

[0070] In some embodiments, referring to Figure 7The pressure plate 143 has a limiting groove 147 on the side facing the cover plate body 110, and the conductive component 130 is located in the limiting groove 147. The shape and size of the conductive component 130 are adapted to the shape and size of the limiting groove 147. The limiting groove 147 positions the conductive component 130, which facilitates the quick installation of the conductive component 130.

[0071] In some embodiments, see Figure 2 , Figure 6 and Figure 9 The monitoring device 120 includes a sensor 121 and a cover 122. The cover 122 and the cover body 110 form a receiving space 123, and the sensor 121 is located within the receiving space 123. The sensor 121 is a sensor, such as a barometric pressure sensor or a temperature sensor. The cover 122 is detachably connected to the cover body 110, facilitating the installation and removal of the sensor 121.

[0072] In some embodiments, the fastener 140 is integrally formed with the pressure cap 122.

[0073] For example, see Figure 5 and Figure 6 Two monitoring devices 120 are provided, spaced apart along the length of the cover body 110. Two fasteners 140 are also provided, with one monitoring device 120 corresponding to one fastener 140. Each fastener 140 includes a pressure plate 143 and a locking portion 144. The pressure plate 143 and the cover 122 are integrally formed using injection molding. The integral formation of the pressure plate 143 and the cover 122 of the fastener 140 results in high component integration, facilitating the overall installation and disassembly of the fastener 140 and the cover 122.

[0074] In some embodiments, see Figure 1 , Figure 2 , Figure 5 and Figure 6 The cover plate body 110 is also provided with an explosion-proof valve 115, and a monitoring device 120 is located on at least one side of the explosion-proof valve 115. For example, the explosion-proof valve 115 is located near the middle of the cover plate body 110, and two monitoring devices 120 are provided, which are correspondingly arranged on both sides of the explosion-proof valve 115 along the width or length direction of the cover plate body 110.

[0075] In some embodiments, the width of the cover body 110 is L, and the width of the monitoring device 120 is l, wherein 0 < l ≤ 0.3L. The monitoring device 120 is located on one side of the explosion-proof valve 115 along the width direction of the cover body 110. The width of the monitoring device 120 refers to the distance between the two sides of the monitoring device 120 along the width direction of the cover body 110. The value of l can be 0.1L, 0.2L, 0.3L, or other unlisted values.

[0076] In this embodiment, when the dimensions of the monitoring device 120 and the cover plate body 110 satisfy the above-mentioned relationship, the monitoring device 120 is positioned on one side of the explosion-proof valve 115 along the width direction of the cover plate body 110. This allows the monitoring device 120 to be installed while ensuring that the dimensions of existing components inside the battery remain unchanged. The configuration of the monitoring device 120 is highly compatible with existing battery production lines, reducing processing costs.

[0077] In some embodiments, see Figure 1 and Figure 5 The cover plate assembly 100 also includes a connecting piece 150 located on the side of the fixing member 140 opposite to the cover plate body 110. The connecting piece 150 is connected to the first terminal 111 and the second terminal 112. The connecting piece 150 is used to connect the first terminal 111 and the second terminal 112 to the battery cell.

[0078] In some embodiments, see Figure 5 and Figure 6 The connecting piece 150 has a second clearance area 151, and the monitoring device 120 is located within the second clearance area 151. The second clearance area 151 is U-shaped or rectangular. This design avoids interference between the connecting piece 150 and the monitoring device 120, resulting in a compact arrangement of components within the battery and minimizing space usage.

[0079] This application also provides a battery, including the cover assembly 100 of any of the above embodiments. The battery in this application has the same technical effects as the cover assembly 100 of the above embodiments, and will not be described again.

[0080] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0081] In the description of this application, 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 technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0082] The cover plate assembly and battery provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A cover plate assembly (100), characterized in that, include: The cover plate body (110) is provided with a first pole post (111) and a second pole post (112); A monitoring device (120) is installed on one side of the cover plate body (110), and the monitoring device (120) is located between the first pole post (111) and the second pole post (112); A conductive element (130) connects the monitoring device (120) to the first electrode (111) and the second electrode (112); A fixing member (140) is provided, wherein the conductive element (130) is located between the cover plate body (110) and the fixing member (140), and the fixing member (140) is detachably connected to the cover plate body (110) to fix the conductive element (130).

2. The cover plate assembly (100) according to claim 1, characterized in that, A mounting groove (113) is provided on one side of the cover plate body (110), and the conductive component (130) is installed in the mounting groove (113).

3. The cover plate assembly (100) according to claim 2, characterized in that, The thickness of the cover plate body (110) is D1, and the depth of the mounting groove (113) is H, wherein 2mm≤D1≤10mm, and 0.3mm≤H≤0.8mm.

4. The cover plate assembly (100) according to claim 1, characterized in that, A limiting protrusion (114) is provided on one side of the cover plate body (110), and the limiting protrusion (114) is located on both sides of the conductive element (130).

5. The cover plate assembly (100) according to claim 4, characterized in that, The thickness of the cover plate body (110) is D1, and the protrusion height of the limiting protrusion (114) is D2, wherein 0 < D1 < 1 mm, and 1 mm ≤ D1 + D2 ≤ 3 mm.

6. The cover plate assembly (100) according to claim 1, characterized in that, The conductive element (130) is bonded to the cover plate body (110) with adhesive.

7. The cover plate assembly (100) according to any one of claims 1 to 6, characterized in that, The conductive element (130) includes a first conductive sheet (131) and a second conductive sheet (132). One end of the first conductive sheet (131) is connected to the monitoring device (120), and the other end is connected to the first pole post (111). One end of the second conductive sheet (132) is connected to the monitoring device (120), and the other end is connected to the second pole post (112).

8. The cover plate assembly (100) according to claim 7, characterized in that, The fastener (140) includes a first fastening member (141) and a second fastening member (142) that are detachably connected to the cover plate body (110), the first conductive piece (131) being located between the first fastening member (141) and the cover plate body (110), and the second conductive piece (132) being located between the second fastening member (142) and the cover plate body (110).

9. The cover plate assembly (100) according to any one of claims 1 to 6, characterized in that, The fastener (140) includes a pressure plate (143) and a locking part (144). The locking part (144) is provided on the side of the pressure plate (143) near the cover plate body (110). The cover plate body (110) is provided with a locking engagement part (145) that cooperates with the locking part (144).

10. The cover plate assembly (100) according to claim 9, characterized in that, The pressure plate (143) is provided with a first clearance area (146), and the first pole post (111) or the second pole post (112) is located in the first clearance area (146); And / or, the pressure plate (143) is provided with a limiting groove (147) on the side facing the cover plate body (110), and the conductive element (130) is located in the limiting groove (147).

11. The cover plate assembly (100) according to any one of claims 1 to 6, characterized in that, The monitoring device (120) includes a collection element (121) and a cover (122). The cover (122) and the cover plate body (110) form a receiving space (123), and the collection element (121) is located in the receiving space (123).

12. The cover plate assembly (100) according to claim 11, characterized in that, The fastener (140) and the pressure cap (122) are integrally formed.

13. The cover plate assembly (100) according to any one of claims 1 to 6, characterized in that, The cover plate body (110) is also provided with an explosion-proof valve (115), and the monitoring device (120) is located on at least one side of the explosion-proof valve (115).

14. The cover plate assembly (100) according to claim 13, characterized in that, The width of the cover plate body (110) is L, and the width of the monitoring device (120) is l, wherein 0 < l ≤ 0.3L. Along the width direction of the cover plate body (110), the monitoring device (120) is located on one side of the explosion-proof valve (115).

15. The cover plate assembly (100) according to any one of claims 1 to 6, characterized in that, It also includes a connecting piece (150) located on the side of the fixing member (140) away from the cover plate body (110), and the connecting piece (150) is connected to the first pole post (111) and the second pole post (112).

16. The cover plate assembly (100) according to claim 15, characterized in that, The connecting piece (150) is provided with a second avoidance zone (151), and the monitoring device (120) is located in the second avoidance zone (151).

17. A battery, characterized in that, include: The cover plate assembly (100) as claimed in any one of claims 1 to 16.

Images