Liquid injection tooling and battery production line

Abstract

The application discloses a liquid injection tool and a battery production line. The liquid injection tool comprises a positioning member, a limiting member arranged in a first direction and spaced apart from the positioning member, a containing member for containing at least part of a liquid injection battery cell, and a connecting member for connecting the limiting member and the containing member to form a detachable whole. The positioning member and the limiting member form an installation space for installing the containing member. Under the action of the connecting member, at least part of the containing member is detachably fixed in the installation space. When the specification of the liquid injection battery cell needs to be changed, the force acting on the limiting member and the containing member by the connecting member is overcome to separate the limiting member and the containing member. Then, another specification of the containing member is replaced according to the new specification of the battery cell. Thus, different specifications of the battery cell can be adapted without replacing the whole tool, which is convenient for operation and improves the utilization rate of the tool components.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a liquid injection tooling and a battery production line. Background Technology

[0002] During the electrolyte injection process for battery cells, the battery is fixed in place using an injection fixture, and then electrolyte is injected into the cell. In related technologies, because battery cells come in various specifications, when the production line needs to change to a different specification of cell, operators must disassemble the entire fixture from the corresponding equipment and then install a new fixture that matches the new specification of cell. However, this method requires a complete fixture for each specification of cell, resulting in low utilization of fixture components and inconvenient operation. Utility Model Content

[0003] This application provides a liquid injection fixture and battery production line that improves the utilization rate of tooling components and is easy to operate, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a liquid injection fixture is provided, comprising: Positioning components; The limiting member is spaced apart from the positioning member along the first direction; and A receiving element for accommodating at least a portion of the battery cell to be injected with electrolyte; and A connector for making the limiting member and the receiving member a detachable whole; The positioning member and the limiting member form an installation space for installing the receiving member, and under the action of the connecting member, at least a portion of the receiving member is detachably fixed within the installation space.

[0005] The above technical solution provides an injection fixture comprising a positioning component, a limiting component, a receiving component, and a connecting component. Along the first direction, the limiting component and the positioning component are spaced apart. The receiving component is used to accommodate at least a portion of the battery cell to be injected. The magnetic connecting component is used to make the limiting component and the receiving component a detachable whole. Under the action of the magnetic connecting component, at least a portion of the receiving component is detachably fixed within the installation space. When it is necessary to change the specification of the battery cell to be injected, the force exerted by the connecting component on the limiting component and the receiving component is released, causing the limiting component and the receiving component to separate. Then, according to the new specification battery cell, a receiving component of another specification is replaced. This allows for the adaptation of different specifications of battery cells without replacing the entire fixture, which is beneficial for improving the utilization rate of fixture components and is easy to operate.

[0006] Optionally, the connector may include a magnetic connector.

[0007] The magnetic connectors combine the housing and the limiting components into a detachable unit, allowing them to be separated without tools, making the operation simple.

[0008] Optionally, the magnetic connector includes: A first magnetic connector is connected to the limiting member; A second magnetic connector is connected to the receiving member; Wherein, on the projection plane perpendicular to the first direction, the orthographic projection of the first magnetic connector on the projection plane at least partially overlaps with the orthographic projection of the second magnetic connector on the projection plane.

[0009] By setting a first magnetic connector on the limiting member and a second magnetic connector on the receiving member, and ensuring that the orthographic projection of the first magnetic connector on the projection plane perpendicular to the first direction at least partially overlaps with the orthographic projection of the second magnetic connector on the projection plane, the effective transmission of magnetic attraction between the first magnetic connector and the second magnetic connector can be guaranteed, avoiding insufficient attraction or inaccurate positioning due to misalignment.

[0010] Optionally, the limiting member has multiple independently configured limiting spaces that extend through the first direction; The limiting space is connected to the installation space, so that part of the receiving component is located in the installation space and the other part is located in the limiting space.

[0011] With this design, the limiting component has multiple independently configured limiting spaces that extend along the first direction, and the limiting spaces are connected to the installation space. This allows part of the receiving component to be located in the installation space and the other part to be located in the limiting space. In this way, multiple cells are independent of each other during the liquid injection process, avoiding the situation where the position deviation of one cell affects the position of other cells. Furthermore, the fact that the receiving component is located in both the installation space and the limiting space can further improve the stability of the receiving component.

[0012] Optionally, the receiving member includes: A receiving body is used to define a receiving space for at least a portion of the battery cell to be injected with liquid; The connecting and mating part is located at one end of the receiving body and protrudes from the outer wall surface of the receiving body along the second direction; The limiting component also includes: A connecting interface portion, used to engage with the connecting mating portion; Wherein, when the connecting mating part is engaged with the connecting interface part, the rotation of the receiving member relative to the limiting member about the first direction is restricted; The first direction and the second direction are intersecting.

[0013] By combining the connecting mating part and the connecting interface part, the rotation of the receiving part relative to the limiting part around the first direction is restricted. Based on the magnetic connector, the connection stability between the receiving part and the limiting part can be further improved, thereby improving the reliability of the liquid injection tool.

[0014] Optionally, the connecting mating portion has a first groove that opens along the first direction, and at least a portion of the first magnetic connector is disposed in the first groove so that the first magnetic connector is disposed in the connecting mating portion; And / or, The connection interface portion has a second groove that opens along the first direction, and at least a portion of the second magnetic connector is disposed in the second groove so that the second magnetic connector is disposed in the connection interface portion.

[0015] By providing a first groove on the connecting mating part and placing at least a portion of the first magnetic connector within the first groove, it is unnecessary to provide a structure for placing the first magnetic connector at other locations on the receiving part, thereby improving the structural integration of the liquid injection tooling. Similarly, by providing a second groove on the connecting interface part and placing at least a portion of the second magnetic connector within the second groove, it is unnecessary to provide a structure for placing the second magnetic connector at other locations on the limiting part, further improving the structural integration of the liquid injection tooling.

[0016] Optionally, the limiting member further includes a limiting wall surface that defines the limiting space; The portion of the connecting interface is connected to the portion of the limiting wall.

[0017] By connecting the portion of the connecting interface to the portion of the limiting wall that defines the limiting space, when the receiving member is engaged with the connecting interface through the connecting mating portion to prevent rotation around the first direction, the torsional force will act on the connecting interface. Since the portion of the connecting interface is connected to the portion of the limiting wall, the torsional force can be smoothly distributed to a larger area of ​​the limiting wall or even the entire limiting member, thus avoiding local stress concentration.

[0018] Optionally, the connecting mating part is a protrusion or groove formed on the outer wall surface of the receiving body; the connecting interface part is a groove or protrusion that matches the shape of the protrusion or groove.

[0019] By setting the connecting mating part and the connecting interface part as matching grooves and protrusions, the forming method is simple and easy to install and disassemble.

[0020] Optionally, the positioning element is further provided with: Multiple independently configured positioning spaces are provided to accommodate at least a portion of the receiving member; The positioning space extends through the positioning member along the first direction, and the positioning space is connected to the limiting space.

[0021] By setting multiple independently configured positioning spaces on the positioning element, and utilizing the positioning spaces to accommodate at least a portion of the receiving element, the connection stability between the receiving element and the positioning element can be further improved when the receiving element is located within the installation space.

[0022] Optionally, the injection fixture further includes: A clamping member is used to apply a clamping force to the limiting member along the first direction, so that the limiting member tends to move closer to the positioning member; Along the first direction, the clamping member is located on the side of the limiting member away from the positioning member, and together with the limiting member, they form a detachable whole.

[0023] By setting a clamping component, the displacement of the limiting component relative to the receiving component along the first direction can be further restricted under the action of the magnetic connector, ensuring the overall stability of the injection fixture. Furthermore, even when the magnetic attraction force of the magnetic connector weakens, the clamping component can still ensure a stable connection between the limiting component and the receiving component.

[0024] Optionally, the clamping member also has a plurality of independently disposed through spaces extending along the first direction; The insertion space and the limiting space are connected to each other so that the battery cell to be injected is suitable for insertion into the limiting space and the insertion space.

[0025] By providing multiple independently arranged through-holes on the clamping member that extend along the first direction, the battery cell to be injected can pass through from the limiting space to the through-hole, thus avoiding the battery cell to be injected and preventing the clamping member from applying pressure to the battery cell to be injected.

[0026] Optionally, the injection fixture further includes: Support member, used to connect the limiting member and the positioning member; The support member is located within the installation space; and / or The injection fixture also includes: The base plate, along the first direction, is located on the side of the positioning member away from the limiting member.

[0027] In this embodiment, by providing a support member to connect the limiting member and the positioning member, a stable installation frame can be formed between the limiting member and the positioning member, thus bearing the pressure applied to the limiting member by the clamping member. In this embodiment, by providing a base plate, the positioning member can be supported by the base plate.

[0028] According to a second aspect of this application, a battery production line is provided, including the liquid injection fixture described above. The beneficial effects of this application are: it provides a liquid injection tooling and battery production line that can improve the utilization rate of tooling components and is easy to operate.

[0029] More specifically, some embodiments of this application may produce the following specific beneficial effects: In the liquid injection fixture of this application embodiment, the liquid injection fixture includes: a positioning member; a limiting member, spaced apart from the positioning member along a first direction; a receiving member for receiving at least a portion of the battery cell to be injected; and a connecting member for making the limiting member and the receiving member constitute a detachable whole; wherein, an installation space for installing the receiving member is formed between the positioning member and the limiting member, and under the action of the connecting member, at least a portion of the receiving member is detachably fixed in the installation space.

[0030] The above technical solution provides a liquid injection fixture comprising a positioning component, a limiting component, a receiving component, and a connecting component. Along the first direction, the limiting component and the positioning component are spaced apart. The receiving component is used to accommodate at least a portion of the battery cell to be injected. The magnetic connecting component is used to make the limiting component and the receiving component form a detachable whole. Under the action of the connecting component, at least a portion of the receiving component is detachably fixed within the installation space. When it is necessary to change the specification of the battery cell to be injected, the force exerted by the connecting component on the limiting component and the receiving component is overcome under external force, causing the limiting component and the receiving component to separate. Then, according to the new specification battery cell, a receiving component of another specification is replaced. This allows for the adaptation of different specifications of battery cells without replacing the entire fixture, which is beneficial for improving the utilization rate of fixture components and is easy to operate.

[0031] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0033] Figure 1 This is a schematic diagram of the connection structure between the liquid injection tool and the battery cell to be injected, provided in an exemplary embodiment of this application. Figure 2 This is an exploded structural diagram of the liquid injection tool provided in an exemplary embodiment of this application; Figure 3 This is a schematic diagram of the connection structure between the positioning member and the limiting member provided in the exemplary embodiment of this application, where a support member is provided; Figure 4 This is a top view schematic diagram of the limiting member provided in an exemplary embodiment of this application; Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle; Figure 6 This is a schematic diagram of the structure of the clamping member provided in an exemplary embodiment of this application; Figure 7 This is a schematic diagram of the structure of the receiving member provided in an exemplary embodiment of this application; Figure 8 This is a structural schematic diagram of the accommodating member provided in an exemplary embodiment of this application from another angle; Figure 9 This is a structural schematic diagram of the accommodating member provided in an exemplary embodiment of this application from another angle.

[0034] Explanation of reference numerals in the attached figures: 100. Injection fixture; 100a. Installation space; 110. Positioning component; 110a. Positioning space; 120. Limiting component; 120a. Limiting space; 121. Connecting interface; 121a. Second groove; 122. Limiting wall surface; 130. Receiving element; 131. Receiving body; 132. Connecting mating part; 132a. First groove; 140. Connector; 141. First magnetic connector; 142. Second magnetic connector; 150. Clamping element; 150a. Through-hole space; 160. Supporting component; 170. Base plate; 200. Battery cells to be injected with electrolyte. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0036] According to a first aspect of this application, a liquid injection fixture 100 is provided, with reference to... Figure 1 and Figure 2 The liquid injection fixture 100 includes a positioning member 110, a limiting member 120, a receiving member 130, and a connecting member 140. Along the first direction D1, the limiting member 120 and the positioning member 110 are spaced apart. The receiving member 130 is used to receive at least a portion of the battery cell 200 to be injected with liquid. The connecting member 140 is used to make the limiting member 120 and the receiving member 130 form a detachable whole. Under the action of the connecting member 140, at least a portion of the receiving member 130 is detachably fixed in the installation space 100a.

[0037] With the above technical solution, when it is necessary to change the specification of the battery cell 200 to be injected, the force exerted by the connector 140 on the limiting member 120 and the receiving member 130 is released, so that the limiting member 120 and the receiving member 130 are separated. Then, according to the new specification battery cell, the receiving member 130 of another specification is replaced. In this way, different specifications of battery cells can be adapted without replacing the entire tooling, which is beneficial to improving the utilization rate of tooling components and is convenient to operate.

[0038] In some embodiments, connector 140 includes a magnetic connector.

[0039] The receiving part 130 and the limiting part 120 are connected by a magnetic connector to form a detachable whole. The magnetic connector allows the receiving part 130 and the limiting part 120 to be separated without tools, making the operation simple.

[0040] In some embodiments, the magnetic connector includes a first magnetic connector 141 and a second magnetic connector 142.

[0041] refer to Figure 4 and Figure 5 The first magnetic connector 141 is connected to the limiting member 120, and the second magnetic connector 142 is connected to the receiving member 130. Specifically, on a projection plane perpendicular to the first direction, the orthographic projection of the first magnetic connector 141 on the projection plane at least partially overlaps with the orthographic projection of the second magnetic connector 142 on the projection plane.

[0042] By providing a first magnetic connector 141 on the limiting member 120 and a second magnetic connector 142 on the receiving member 130, and ensuring that the orthographic projection of the first magnetic connector 141 on the projection plane perpendicular to the first direction at least partially overlaps with the orthographic projection of the second magnetic connector 142 on the projection plane, the effective transmission of magnetic attraction between the first magnetic connector 141 and the second magnetic connector 142 can be guaranteed, avoiding insufficient attraction or inaccurate positioning due to misalignment.

[0043] For example, both the first magnetic connector 141 and the second magnetic connector 142 are constructed as magnets. The attraction between the two magnets allows the limiting member 120 and the receiving member 130 to be brought close together, thereby forming a detachable whole. When the receiving member 130 needs to be replaced, only the two magnets need to be separated, thus separating the limiting member 120 from the receiving member 130, and then the receiving member 130 can be replaced.

[0044] In some embodiments, reference Figure 4 The limiting member 120 has multiple independently configured limiting spaces 120a that extend through the first direction; wherein the limiting space 120a is configured to communicate with the installation space 100a, so that part of the receiving member 130 is located in the installation space 100a and another part is located in the limiting space 120a.

[0045] With this design, the limiting member 120 has multiple independently configured limiting spaces 120a that extend through the first direction, and the limiting spaces 120a are connected to the installation space 100a. This allows part of the receiving member 130 to be located within the installation space 100a, while another part is located within the limiting space 120a. In this way, multiple cells are independent of each other during the liquid injection process, avoiding the situation where the position deviation of one cell affects the position of other cells. Furthermore, since the receiving member 130 is located in both the installation space 100a and the limiting space 120a, the stability of the receiving member 130 can be further improved.

[0046] It is understood that multiple limiting spaces 120a are connected to the same installation space 100a, and each limiting space 120a holds a portion of a receiving component 130.

[0047] In some embodiments, reference Figure 7 , Figure 8 and Figure 9 The receiving member 130 includes a receiving body 131 and a connecting mating part 132.

[0048] The receiving body 131 is used to define a receiving space for at least part of the battery cell 200 to be injected with liquid, and the connecting mating part 132 is located at one end of the receiving body 131 and protrudes from the outer wall surface of the receiving body 131 in a second direction.

[0049] The limiting member 120 in this embodiment further includes a connecting interface portion 121. The connecting interface portion 121 in this embodiment is used to engage with the connecting mating portion 132.

[0050] When the connecting mating part 132 is engaged with the connecting interface part 121, the rotation of the receiving member 130 relative to the limiting member 120 about the first direction is restricted.

[0051] The first direction and the second direction are intersected.

[0052] By combining the connecting mating part 132 and the connecting interface part 121, the rotation of the receiving member 130 relative to the limiting member 120 around the first direction is restricted. Based on the magnetic connector, the connection stability between the receiving member 130 and the limiting member 120 can be further improved, thereby improving the reliability of the liquid injection tool 100.

[0053] refer to Figure 7 In this embodiment, the receiving body 131 is constructed as a cylindrical structure, and a portion of the battery cell 200 to be injected with liquid is placed inside the cylindrical structure.

[0054] In this embodiment, the inner wall surface of one end of the opening of the cylindrical structure is provided with a chamfer, which can prevent the bottom of the battery cell 200 to be injected from being damaged during the process of placing it inside the cylindrical structure. For example, the angle of the chamfer can be 45 degrees.

[0055] In this embodiment of the application, taking the first direction D1 and the second direction D2 as being perpendicular as an example, and the receiving body 131 as a cylindrical structure as an example, the connecting mating part 132 protrudes from the outer peripheral wall of the receiving body 131 along the second direction, and the number of connecting mating parts 132 is set to two, and they are symmetrically arranged on the outer peripheral wall of the cylindrical structure. The number of connecting interface parts 121 is also set to two, and they are also symmetrically arranged.

[0056] Of course, without affecting the structural strength, the number of connecting mating parts 132 and connecting interface parts 121 can also be set to other values, which will not be elaborated here.

[0057] In some embodiments, reference Figure 8 The connecting mating part 132 has a first groove 132a that is provided with an opening along a first direction, and at least a portion of the first magnetic connector 141 is disposed in the first groove 132a so that the first magnetic connector 141 is disposed in the connecting mating part 132.

[0058] By providing a first groove 132a on the connecting mating part 132, at least a portion of the first magnetic connector 141 is disposed in the first groove 132a. In this way, there is no need to provide a structure for placing the first magnetic connector 141 at other positions of the receiving part 130, which can improve the structural integration of the liquid injection tool 100.

[0059] In some embodiments, reference Figure 3 The connection interface portion 121 has a second groove 121a that is provided with an opening along a first direction, and at least a portion of the second magnetic connector 142 is provided in the second groove 121a so that the second magnetic connector 142 is provided in the connection interface portion 121.

[0060] By providing a second groove 121a on the connection interface portion 121, at least a portion of the second magnetic connector 142 is disposed within the second groove 121a. In this way, it is not necessary to provide a structure for placing the second magnetic connector 142 at other positions of the limiting member 120, thereby improving the structural integration of the liquid injection tooling 100.

[0061] For example, the second groove 121a formed on the connecting mating part 132 can be a through groove with open ends, while the second groove 121a formed on the limiting member 120 can be a half groove with open end, and one end of the second groove 121a is set towards the first groove 132a. In this way, the first magnetic connector 141 and the second magnetic connector 142 can be in direct contact to achieve better adsorption.

[0062] It should be noted that the magnetic properties of the first magnetic connector 141 and the second magnetic connector 142 are opposite.

[0063] To avoid stress concentration at the connection structure, in some embodiments, reference is made to... Figure 3 The limiting member 120 also includes a limiting wall 122 that defines the limiting space 120a; wherein a portion of the connecting interface portion 121 is connected to a portion of the limiting wall 122.

[0064] By connecting a portion of the connecting interface 121 to a portion of the limiting wall 122 that defines the limiting space 120a, when the receiving member 130 is engaged with the connecting interface 121 via the connecting mating portion 132 to prevent rotation around the first direction, a torsional force will act on the connecting interface 121. Since the portion of the connecting interface 121 is connected to the portion of the limiting wall 122, the torsional force can be smoothly distributed to a larger area of ​​the limiting wall 122 and even the entire limiting member 120, thus avoiding local stress concentration.

[0065] In some embodiments, the connecting mating part 132 is a protrusion or groove formed on the outer wall surface of the receiving body 131; the connecting interface part 121 is a groove or protrusion adapted to the shape of the protrusion or groove.

[0066] By setting the connecting mating part 132 and the connecting interface part 121 as matching grooves and protrusions, the forming method is simple and easy to install and disassemble.

[0067] In some embodiments, reference Figure 2 The positioning component 110 is also provided with multiple independently configured positioning spaces 110a.

[0068] In this embodiment, multiple independently configured positioning spaces 110a are used to accommodate at least a portion of the receiving member 130. The positioning space 110a extends through the positioning member 110 along a first direction and is connected to the limiting space 120a.

[0069] By providing multiple independently configured positioning spaces 110a on the positioning member 110, and utilizing the positioning spaces 110a to accommodate at least a portion of the receiving member 130, the connection stability between the receiving member 130 and the positioning member 110 can be further improved when the receiving member 130 is located within the installation space 100a.

[0070] It is understood that at least a portion of the accommodating member 130 is located within the positioning space 110a, meaning that the bottom of the accommodating member 130 is located within the positioning space 110a, which can prevent the bottom of the accommodating member 130 from moving radially in the first direction, that is, can prevent the accommodating member 130 from moving in the second direction.

[0071] For example, the positioning member 110 can be set as a planar plate structure. In this embodiment, the first direction D1 is the up and down direction and the second direction D2 is the left and right direction. The bottom of the receiving member 130 is located in the positioning space 110a, the top is located in the limiting space 120a, and the rest is located in the installation space 100a, which can ensure that the receiving member 130 is more stable in the left and right direction.

[0072] Meanwhile, the bottom of the receiving member 130 is located within the positioning space 110a, which also facilitates heat dissipation. The positioning space 110a can be a positioning space formed by a groove extending through the positioning member 110 along the first direction. Referring to the figure, multiple grooves are evenly arrayed on the positioning member 110. A through-hole is provided at the bottom of the receiving member 130 to further dissipate heat from the electrolyte cell 200 to be injected.

[0073] In some embodiments, reference Figure 1 and Figure 6 The injection fixture 100 also includes a clamping component 150.

[0074] In this embodiment, the clamping member 150 is used to apply a clamping force to the limiting member 120 along a first direction, so that the limiting member 120 tends to move closer to the positioning member 110; wherein, along the first direction, the clamping member 150 is located on the side of the limiting member 120 away from the positioning member 110, and forms a detachable whole with the limiting member 120.

[0075] By setting the clamping member 150, the displacement of the limiting member 120 relative to the receiving member 130 along the first direction can be further restricted under the action of the magnetic connector, ensuring the overall stability of the injection fixture 100. Moreover, when the magnetic attraction force of the magnetic connector weakens, the clamping member 150 can also ensure a stable connection between the limiting member 120 and the receiving member 130.

[0076] For example, the clamping member 150 may be a plate-like structure, and the orthographic projection of the clamping member 150 on the projection plane perpendicular to the first direction can completely cover the orthographic projection of the limiting member 120 on the projection plane.

[0077] It should be noted that the clamping member 150 and the limiting member 120 in this embodiment can be detachably connected by fasteners, enabling quick assembly and disassembly.

[0078] In some embodiments, reference Figure 1 and Figure 6 The clamping member 150 also has a plurality of independently arranged through spaces 150a extending along the first direction; wherein the through spaces 150a are connected to the limiting space 120a so that the battery cell 200 to be injected is suitable for passing through the limiting space 120a and the through spaces 150a.

[0079] By providing multiple independently arranged through-spaces 150a on the clamping member 150 that extend through the first direction, the battery cell 200 to be injected can pass through from the limiting space 120a to the through-space 150a, thus avoiding the battery cell 200 to be injected and preventing the clamping member 150 from applying pressure to the battery cell 200 to be injected.

[0080] In this embodiment, multiple through-holes can be formed in the clamping member 150, thus creating multiple independently arranged through-hole spaces 150a extending along the first direction. The cross-section of the groove structure is circular. Referring to the figure, the multiple grooves are evenly arrayed on the clamping member 150.

[0081] In some embodiments, reference Figure 2 The injection fixture 100 also includes a support component 160.

[0082] In this embodiment, the support member 160 is used to connect the limiting member 120 and the positioning member 110; wherein, the support member 160 is located within the installation space 100a.

[0083] In this embodiment of the application, by setting a support member 160 to connect the limiting member 120 and the positioning member 110, a stable installation frame can be formed between the limiting member 120 and the positioning member 110, which can bear the pressure applied by the clamping member 150 to the limiting member 120.

[0084] For example, the support member 160 is constructed as a cuboid column, and the cuboid column is positioned on the side of the positioning member 110, providing installation space 100a for the battery cell 200 to be injected with liquid.

[0085] In some embodiments, reference Figure 1 The injection fixture 100 also includes: a base plate 170.

[0086] Along the first direction, the base plate 170 in this embodiment is located on the side of the positioning member 110 away from the limiting member 120.

[0087] In this embodiment of the application, by setting a base plate 170, the base plate 170 can support the positioning member 110.

[0088] For example, the area of ​​the base plate 170 is larger than the area of ​​the positioning member 110, and the base plate 170 and the positioning member 110 can be connected by fasteners.

[0089] refer to Figure 1 In this embodiment of the application, a guide groove is provided on the side of the base plate 170 near the positioning member 110. If the electrolyte liquid leaks out during the injection process, it can guide the electrolyte liquid. The multiple guide grooves are connected to each other, and one or more positioning spaces 110a are provided above each guide groove.

[0090] In this embodiment, the limiting member 120 and the positioning member 110 can both be made of aluminum alloy, which can make the overall weight of the injection tool 100 smaller, while the clamping member 150, the support member 160 and the base plate 170 can be made of high-density corrosion-resistant non-metallic material.

[0091] Below, for reference Figure 1The liquid injection fixture 100 in this embodiment of the application is described as a whole, including a positioning component 110, a limiting component 120, a clamping component 150, a sleeve, and a base plate 170. The liquid injection fixture 100 in this embodiment of the application uses the limiting component 120, the positioning component 110, and the clamping component 150 in cooperation to directly install the base plate 170 onto the liquid injection equipment. A magnetic connector is provided between the limiting component 120 and the sleeve. When changing the model of the battery cell 200 to be injected, it is only necessary to remove the clamping component 150 from the limiting component 120, and then separate the limiting component 120 from the receiving component 130. By changing the model of the receiving component 130, other models of battery cells 200 to be injected can be placed. This allows for quick model changeover in a short time and is easy to operate.

[0092] According to a second aspect of this application, a battery production line is provided, including the liquid injection fixture 100 as described above. The battery production line in this application embodiment includes the liquid injection fixture 100 described above, and therefore has all the beneficial effects of the liquid injection fixture 100 described above, which will not be repeated here.

[0093] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0094] 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.

[0095] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0096] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A liquid injection fixture (100), characterized in that, include: Positioning component (110); The limiting member (120) is spaced apart from the positioning member (110) along the first direction; and Receptacle (130) for accommodating at least a portion of the cell to be injected with electrolyte (200); and A connector (140) is provided to make the limiting member (120) and the receiving member (130) form a detachable whole; The positioning member (110) and the limiting member (120) form an installation space (100a) for installing the receiving member (130). Under the action of the connecting member (140), at least a portion of the receiving member (130) is detachably fixed in the installation space (100a).

2. The injection fixture (100) according to claim 1, characterized in that, The connector (140) includes a magnetic connector.

3. The injection fixture (100) according to claim 2, characterized in that, The magnetic connector includes: The first magnetic connector (141) is connected to the limiting member (120). The second magnetic connector (142) is connected to the receiving member (130); Wherein, on the projection plane perpendicular to the first direction, the orthographic projection of the first magnetic connector (141) on the projection plane at least partially overlaps with the orthographic projection of the second magnetic connector (142) on the projection plane.

4. The injection fixture (100) according to claim 3, characterized in that, The limiting member (120) has multiple independently configured limiting spaces (120a) that extend through the first direction. The limiting space (120a) is connected to the installation space (100a) so that part of the receiving member (130) is located in the installation space (100a) and the other part is located in the limiting space (120a).

5. The injection fixture (100) according to claim 4, characterized in that, The receiving member (130) includes: The receiving body (131) is used to define the receiving space for receiving at least a portion of the battery cell (200) to be injected with liquid; The connecting mating part (132) is located at one end of the receiving body (131) and protrudes from the outer wall surface of the receiving body (131) in the second direction; The limiting member (120) also includes: A connection interface (121) is used to engage with the connection mating part (132); When the connecting mating part (132) is engaged with the connecting interface part (121), the rotation of the receiving member (130) relative to the limiting member (120) about the first direction is restricted. The first direction and the second direction are intersecting.

6. The injection fixture (100) according to claim 5, characterized in that, The connecting mating part (132) has a first groove (132a) that is provided with an opening along the first direction, and at least a portion of the first magnetic connector (141) is disposed in the first groove (132a) so that the first magnetic connector (141) is disposed in the connecting mating part (132). And / or, The connection interface portion (121) has a second groove (121a) that is provided with an opening along the first direction. At least a portion of the second magnetic connector (142) is disposed in the second groove (121a) so that the second magnetic connector (142) is disposed in the connection interface portion (121).

7. The injection fixture (100) according to claim 5, characterized in that, The limiting member (120) also includes a limiting wall (122) that defines the limiting space (120a). The portion of the connecting interface (121) is connected to the portion of the limiting wall (122).

8. The injection fixture (100) according to any one of claims 5 to 7, characterized in that, The connecting mating part (132) is a protrusion or groove formed on the outer wall surface of the receiving body (131); the connecting interface part (121) is a groove or protrusion that matches the shape of the protrusion or groove.

9. The injection fixture (100) according to any one of claims 5 to 7, characterized in that, The positioning element (110) is also provided with: Multiple independently configured positioning spaces (110a) are used to accommodate at least a portion of the receiving member (130); The positioning space (110a) extends through the positioning member (110) along the first direction, and the positioning space (110a) is connected to the limiting space (120a).

10. The injection fixture (100) according to any one of claims 5 to 7, characterized in that, The injection fixture (100) also includes: A clamping member (150) is used to apply a clamping force to the limiting member (120) along the first direction so that the limiting member (120) tends to move closer to the positioning member (110); Along the first direction, the clamping member (150) is located on the side of the limiting member (120) away from the positioning member (110), and together with the limiting member (120), they form a detachable whole.

11. The injection fixture (100) according to claim 10, characterized in that, The clamping member (150) also has a plurality of independently arranged through spaces (150a) extending along the first direction. The penetration space (150a) is connected to the limiting space (120a) so that the cell to be injected (200) is suitable for penetrating the limiting space (120a) and the penetration space (150a).

12. The injection fixture (100) according to claim 10, characterized in that, The injection fixture (100) also includes: Support member (160) for connecting the limiting member (120) and the positioning member (110). The support member (160) is located within the installation space (100a); and / or The injection fixture (100) also includes: The base plate (170) is located on the side of the positioning member (110) away from the limiting member (120) along the first direction.

13. A battery production line, characterized in that, Includes the injection tool (100) as described in any one of claims 1 to 12.

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