Resistance-adjustable cover plate and battery

Abstract

The application relates to the technical field of batteries, in particular to a resistance-adjustable cover plate and a battery. The cover plate comprises a cover plate main body, a positive pole, an electric connecting piece, an electric resistance piece, a plurality of adjusting members, an insulating support piece, a conductive member and an insulating seat. The positive pole and the insulating seat are installed on the cover plate main body. The electric resistance piece is installed on the insulating seat and is electrically connected with the positive pole through the electric connecting piece. The insulating support piece is installed on the insulating seat or the cover plate main body. The adjusting members are movably installed on the electric resistance piece and the insulating support piece and are electrically connected with the cover plate main body through the conductive member. The adjusting members are sequentially arranged along a first preset direction. By moving the adjusting members, the adjusting members are matched with or separated from the electric resistance piece, and the resistance value of the electric resistance piece connected to the circuit is changed. It can be seen that a resistance-adjustable structure is connected between the positive pole and the cover plate main body, the shell voltage of the battery in the whole service cycle is ensured to be in a normal state, and problems such as aluminum shell corrosion, liquid leakage and short circuit are avoided.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to an adjustable resistance cover and a battery. Background Technology

[0002] Currently, lithium batteries are increasingly used in large-scale energy storage applications. It is well known that long cycle life is a key performance indicator for energy storage batteries. However, during long-term storage, corrosion and leakage have been observed on the outer surface of some battery casings. To address this issue, many researchers in the industry have proposed different solutions. A common approach is to use a plastic with certain conductivity at the positive electrode and incorporate an ohmic resistor to increase the casing's potential and prevent electrochemical corrosion. This primarily utilizes the plastic ohmic resistor to address casing corrosion. However, plastics undergo modification at high temperatures, causing significant fluctuations in ohmic resistance, thus losing their intended function. Furthermore, the ohmic resistance cannot be adjusted according to actual conditions to achieve optimal corrosion protection. Therefore, there is an urgent need to develop a battery structure that can guarantee a stable resistance value for the battery under various harsh environments. Summary of the Invention

[0003] The purpose of this application is to provide an adjustable resistance cover and battery, which to some extent solves the technical problem in the prior art that there is an urgent need to develop a battery structure that can ensure that the battery has a stable resistance value in different harsh environments.

[0004] This application provides an adjustable resistance cover plate, comprising: a cover plate body, a positive terminal, an electrical connector, a resistive element, an adjusting component, an insulating support, a conductive component, and an insulating base; wherein, the positive terminal and the insulating base are both mounted on the cover plate body; the resistive element is mounted on the insulating base and is insulated from the cover plate body through the insulating base, and the resistive element is electrically connected to the positive terminal through the electrical connector; the insulating support is mounted on the insulating base or the cover plate body;

[0005] The adjusting member is movably mounted on the resistive element and the insulating support, and there are multiple adjusting members; all of the multiple adjusting members are electrically connected to the cover plate body through the conductive member, and the adjusting member used in the previous adjustment is removed from the resistive element to separate the two, and then another adjusting member is inserted into the resistive element, always keeping only one adjusting member inserted into the resistive element, thereby continuously adjusting the resistance value connected to the circuit;

[0006] The plurality of adjustment components are arranged sequentially along a first preset direction, and the first preset direction, the height direction of the resistor, and the thickness direction of the cover plate body are the same.

[0007] In the above technical solution, the resistive element is further provided with a socket, the insulating support element is provided with a clearance through hole, and the adjusting member is sequentially and movably inserted into the clearance through hole and the socket, and is able to move along the socket and the clearance through hole.

[0008] In any of the above technical solutions, the adjustable resistance cover further includes a mounting tube, a pressing member, a transmission member, and a spring; wherein, the mounting tube is mounted on the insulating support member, and the inner wall of the mounting tube has a plurality of long grooves and short grooves extending along its length direction, and the long grooves and short grooves are alternately spaced around the axis of the mounting tube; an opening is formed on the side of the long groove and the short groove near the resistive element; the pressing member has a clearance groove extending along its length direction and located on the side of the short groove near the insulating support member, and the clearance groove is connected to the short groove; a toothed groove is formed at the end of the pressing member near the transmission member, arranged sequentially along its circumference; a guide protrusion is formed along the length direction of the pressing member, and the outer wall area of ​​the pressing member near the two toothed grooves is capable of sliding into or out of the long groove or the short groove;

[0009] A portion of the transmission component is inserted into the pressing component, and the outer wall of the transmission component has a plurality of mating teeth arranged sequentially at intervals along its circumference; the adjusting component and the transmission component are sequentially connected along the length direction of the adjusting component; the spring is disposed in the insertion hole, and one end of the spring is connected to the inner wall of the insertion hole along the length direction of the adjusting component; the outer wall of the adjusting component is provided with a limiting protrusion, and the limiting protrusion can abut against the side wall of the insertion hole and compress the spring;

[0010] When the pressing member is pressed towards the resistive element, the mating teeth can slide from the long groove into the tooth groove, and when the pressing member is released, the mating teeth can slide from the tooth groove into the short groove, and during this process, the spring is compressed by the limiting protrusion; when the pressing member is pressed again, the mating teeth slide from the short groove into the tooth groove, and when the pressing member is released, the spring is in a rebound state, and pushes the limiting protrusion to drive the adjusting member to reset, and the mating teeth can slide from the tooth groove into the long groove.

[0011] In any of the above technical solutions, the short groove is further defined as a V-shaped groove, and one side wall of the short groove is arranged along the length direction of the adjusting member, while the other side wall of the short groove is inclined relative to the length direction of the adjusting member to form a first guide slope.

[0012] A second guide slope is formed at the end of the structure between the long groove and the short groove, and the first guide slope and the second guide slope are arranged parallel to each other; a third guide slope is formed along one end of the adjusting member of the mating tooth, and the third guide slope is adapted to both the first guide slope and the second guide slope.

[0013] In any of the above technical solutions, the insulating support member further includes a first mounting cavity extending through one end of it near the cover plate body, and the conductive member is installed in the first mounting cavity.

[0014] In any of the above technical solutions, when the insulating support is installed on the insulating base, the insulating base forms a second mounting cavity that extends through its top and bottom. The insulating support is installed in the second mounting cavity, and the conductive member contacts the cover plate body through the first mounting cavity and the second mounting cavity.

[0015] In any of the above technical solutions, the adjustable resistance cover further includes a fixing member, which is embedded in the insulating base and is insulated from the main body of the cover. The fixing member has a groove, the resistor is fixedly installed in the groove, and a portion of the resistor extends to the outside of the fixing member and the insulating base, and slides with the adjusting member.

[0016] In any of the above technical solutions, the resistor is further provided to be detachably connected to the fixing member via a thread.

[0017] In any of the above technical solutions, the resistive element is further connected to the fixing member by welding or adhesive bonding.

[0018] In any of the above technical solutions, the resistive element further includes a body and a plurality of protrusions, and the plurality of protrusions are sequentially disposed on the outer wall of the body along the first preset direction, so that the resistance value is distributed in a spanning manner along the first preset direction.

[0019] In any of the above technical solutions, the material of each of the protrusions is different, and the material of each protrusion is different from that of the body.

[0020] In any of the above technical solutions, the resistive element further includes a plurality of resistor sections connected in sequence, such that the resistance value is distributed in a spanning manner along the first preset direction.

[0021] In any of the above technical solutions, the materials of each of the resistors are different.

[0022] In any of the above technical solutions, the adjustable resistance cover further includes an insulating member and a welding ring; wherein the welding ring is disposed on the side of the cover away from the electrode core, and the welding ring is pressed against the outside of the positive electrode post, and the insulating member covers part of the welding ring so that the welding ring is insulated from the cover; both the insulating member and the welding ring are formed with clearance through holes, and the adjusting member passes through the clearance through holes and is electrically connected to the positive electrode post.

[0023] In any of the above technical solutions, the adjusting member is further defined as a rod, and a gripping portion is formed at one end of the adjusting member exposed to the insulating support member.

[0024] In any of the above technical solutions, the positive terminal post is further provided with a first mounting groove, and one end of the electrical connector is mounted in the first mounting groove.

[0025] In any of the above technical solutions, the cover plate body is further provided with a second mounting groove, and the insulating seat is installed in the second mounting groove.

[0026] In any of the above technical solutions, the electrical connector is further connected to the positive terminal and the resistor by welding.

[0027] In any of the above technical solutions, the conductive component is further defined as a flexible connecting wire or a metal spring, and when the conductive component is a flexible connecting wire, the conductive component is connected to the adjusting component by welding.

[0028] In any of the above technical solutions, a mounting groove is further formed on the outer wall of the pole post.

[0029] In any of the above technical solutions, the adjusting member is further located on the outer side of the cover plate body away from the pole core.

[0030] In any of the above technical solutions, at least a portion of the structure of the resistor is located on the outer side of the cover plate body away from the electrode core.

[0031] In any of the above technical solutions, at least a portion of the structure of the insulating support is located on the outer side of the cover plate body away from the pole core.

[0032] This application also provides a battery, including a casing, an electrode core, and a resistance-adjustable cover plate as described in any of the above technical solutions. The electrode core is disposed within the casing, the resistance-adjustable cover plate seals the opening of the casing, and the cover plate body is connected to the casing. Therefore, it possesses all the beneficial technical effects of this resistance-adjustable cover plate, which will not be elaborated further here.

[0033] Compared with the prior art, the beneficial effects of this application are as follows:

[0034] This application provides an adjustable resistance cover plate. By connecting an adjustable resistance structure between the positive terminal and the cover plate body, the battery casing voltage is kept at a normal level throughout the entire service life, thereby avoiding safety problems such as casing corrosion, leakage, and short circuits, effectively extending the battery's lifespan, ensuring battery performance, and improving the customer's user experience. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 An exploded view of a battery provided in an embodiment of this application;

[0037] Figure 2 An exploded view of the adjustable resistance cover provided in the embodiments of this application;

[0038] Figure 3 An exploded view of the resistance-adjustable structure provided in the embodiments of this application;

[0039] Figure 4 An assembly drawing of the adjustable resistance cover provided in an embodiment of this application;

[0040] Figure 5 This is another assembly drawing of the adjustable resistance cover provided in the embodiments of this application;

[0041] Figure 6 for Figure 5 A partially enlarged structural diagram;

[0042] Figure 7 for Figure 6 A magnified structural diagram at point A;

[0043] Figure 8 This is a partial assembly drawing of the adjustable resistance cover provided in an embodiment of this application;

[0044] Figure 9 for Figure 8 A magnified structural diagram at point B;

[0045] Figure 10 This is a schematic diagram of the structure of the resistor provided in the embodiments of this application;

[0046] Figure 11 This is a schematic diagram of the structure of the positive electrode post provided in an embodiment of this application;

[0047] Figure 12 Exploded view of the insulating base and fixing component provided in the embodiments of this application;

[0048] Figure 13 This is a schematic diagram of the structure of the adjustment component provided in the embodiments of this application;

[0049] Figure 14 Assembly drawings of the mounting fittings, pressing components, and transmission components provided in the embodiments of this application;

[0050] Figure 15 Another assembly drawing of the mounting fittings, pressing components, and transmission components provided in the embodiments of this application;

[0051] Figure 16 for Figure 15 A sectional view along section CC;

[0052] Figure 17 This is a schematic diagram of the pressing component provided in an embodiment of this application;

[0053] Figure 18 This is a schematic diagram of the transmission component provided in the embodiments of this application;

[0054] Figure 19 This is a partial assembly drawing of the adjustment component and the resistive component provided in the embodiments of this application.

[0055] Figure label:

[0056] 1-Cover plate body, 101-Second mounting groove, 2-Positive electrode post, 21-First mounting groove, 3-Electrical connector, 4-Resistor, 41-Body, 42-Protrusion, 43-Socket, 5-Adjusting component, 51-Limiting protrusion, 6-Grip, 7-Insulating support, 71-First mounting cavity, 72-Allowing through hole, 8-Conductive component, 9-Insulating base, 91-Second mounting cavity, 10-Fixing component 11-Insulating component, 12-Welding ring, 13-Lower plastic, 14-Shell, 15-Pole core, 16-Mounting fitting, 161-Long groove, 162-Short groove, 163-Allowing groove, 17-Pressing component, 171-Groove, 172-Guide protrusion, 18-Transmission component, 181-Matching tooth, 19-Spring, 20-First guide slope, 201-Second guide slope, 202-Third guide slope. Detailed Implementation

[0057] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0058] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0059] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0060] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] The following reference Figures 1 to 19 This application describes an adjustable resistance cover and battery according to some embodiments.

[0063] Example 1

[0064] See Figures 1 to 9 As shown, an embodiment of this application provides an adjustable resistance cover plate, including: a cover plate body 1, a positive terminal post 2, an electrical connector 3, a resistor 4, an adjustment component 5, an insulating support component 7, a conductive component 8, and an insulating base 9; wherein, the positive terminal post 2 and the insulating base 9 are both mounted on the cover plate body 1; the resistor 4 is mounted on the insulating base 9 and is insulated from the cover plate body 1 through the insulating base 9, and the resistor 4 is electrically connected to the positive terminal post 2 through the electrical connector 3; the insulating support component 7 is mounted on the insulating base 9;

[0065] Adjusting member 5 is movably mounted on resistor 4 and insulating support 7, and there are multiple adjusting members 5; multiple adjusting members 5 are electrically connected to cover body 1 through conductive member 8, and by moving adjusting member 5, adjusting member 5 can cooperate or separate from resistor 4 at different positions to change the resistance value of resistor 4 connected to the circuit. It can be seen that the above-mentioned positive terminal 2, electrical connector 3, resistor 4, adjusting member 5, conductive member 8 and cover body 1 form a resistance adjustable circuit. In other words, a resistance adjustable structure is set between positive terminal 2 and metal cover body 1, such as aluminum plate.

[0066] As described above, the adjustable cover plate provided in this application is used in a battery. In the initial state, multiple adjustment components 5 are supported on the insulating support 7, but the multiple adjustment components 5 and the resistor 4 are in a separate state. During production or use, the voltage value between the positive terminal 2 and the cover plate body 1 is constantly monitored. When the voltage value is greater than the marked value, which may cause corrosion of the casing 14, one of the adjustment components 5 can be moved and inserted into the resistor 4 to cooperate with it, thereby connecting a certain resistance in the circuit. The voltage value between the positive terminal 2 and the cover plate body 1 is constantly monitored. If the detected voltage value is still greater than the marked value, the adjustment component 5 can be moved and inserted into the resistor 4 to cooperate with it, thereby connecting a certain resistance in the circuit. If the value is below the standard, further adjustment is required. Specifically, the adjusting member 5 used in the first adjustment is removed from the resistor 4 to separate them. Then, another adjusting member 5 is inserted into the resistor 4. In other words, only one adjusting member 5 is always inserted into the resistor 4, thereby continuously adjusting the resistance value connected to the circuit. In this way, adjusting members 5 are inserted in different positions in sequence until the voltage value between the positive terminal 2 and the cover plate body 1 is less than or equal to the standard value. It should be noted that as the connected resistance value becomes smaller and smaller, the potential difference between the shell 14 and the positive terminal 2 becomes smaller and smaller, and thus the shell 14 is less prone to electrochemical corrosion.

[0067] As can be seen, this application provides an adjustable resistance cover plate. By connecting an adjustable resistance structure between the positive terminal 2 and the cover plate body 1, the battery casing voltage is kept in a normal state throughout the entire service life, thereby avoiding safety problems such as aluminum casing corrosion, leakage, and short circuits in the casing 14, effectively extending the battery's service life, ensuring battery performance, and improving the customer's user experience.

[0068] In this embodiment, preferably, as follows: Figure 3 , Figure 7 , Figure 9 , Figure 10 and Figure 13As shown, the resistor 4 has a socket 43, the insulating support 7 has a clearance through hole 72, and the adjusting member 5 is movably inserted into the clearance through hole 72 and the socket 43 in sequence, and can move along the socket 43 and the clearance through hole 72.

[0069] As can be seen from the structure described above, by moving the adjusting member 5, the adjusting member 5 can be inserted into the resistor 4 or pulled out of the resistor 4. It should be noted that during the process of moving the adjusting member 5, the adjusting member 5 will always be inserted into the clearance through hole 72 of the insulating support member 7, so that the insulating support member 7 will always effectively support the adjusting member 5 to prevent it from tilting or falling.

[0070] In this embodiment, preferably, as follows: Figure 7 and Figure 12 As shown, the insulating support 7 has a first mounting cavity 71 extending through one end of it near the cover plate body 1, and the conductive member 8 is installed in the first mounting cavity 71.

[0071] Furthermore, preferably, when the insulating support 7 is installed on the insulating base 9, the insulating base 9 forms a second mounting cavity 91 that extends through its top and bottom, the insulating support 7 is installed in the second mounting cavity 91, and the conductive member 8 contacts the cover plate body 1 through the first mounting cavity 71 and the second mounting cavity 91.

[0072] As can be seen from the structure described above, by opening a second mounting cavity 91 through the top and bottom of the insulating base 9 and a first mounting cavity 71 through the bottom of the insulating support 7, the conductive component 8 in the first mounting cavity 71 can contact the cover plate body 1 at the bottom of the insulating base 9, thereby achieving electrical connection.

[0073] Furthermore, preferably, the insulating support 7 can be connected to the insulating base 9 by adhesive bonding or integral injection molding.

[0074] It should be noted that the insulating support 7 is not limited to being installed on the insulating base 9. It can also be installed on the cover plate body 1. For example, an installation groove can be set on the cover plate body 1, and the insulating component can be installed in this installation groove, or the insulating support 7 can be directly injection molded into the installation groove. The specific choice depends on the actual needs.

[0075] In this embodiment, preferably, as follows: Figure 3 and Figure 7 As shown, the adjustable resistance cover also includes a fixing member 10, which is embedded in the insulating base 9 and is insulated from the cover body 1. The fixing member 10 has a groove, and the resistor 4 is fixedly installed in the groove and the two are threadedly connected. Furthermore, part of the structure of the resistor 4 extends to the outside of the fixing member 10 and the insulating base 9 and slides with the adjusting member 5.

[0076] As can be seen from the structure described above, the fixing component 10 serves to support and fix the resistor 4, making the resistor 4 more robust and stable, and ensuring the stability of the structure.

[0077] Furthermore, preferably, the resistor 4 and the fixing member 10 are detachably connected by threads, which is a detachable connection method, facilitating installation and disassembly. Of course, this is not the only option; other connection methods can also be used between the resistor 4 and the fixing member 10, such as welding or gluing.

[0078] Furthermore, preferably, the fixing component 10 and the insulating base 9 can be connected by processes such as hot melt embedding, ultrasonic welding or injection molding, depending on actual needs.

[0079] In this embodiment, preferably, as follows: Figure 7 and Figure 11 As shown, the positive terminal 2 has a first mounting groove 21, and one end of the electrical connector 3 is installed in the first mounting groove 21, making the electrical connector 3 and the positive terminal 2 more firmly and stably assembled. Of course, this first mounting groove 21 may not be provided, depending on the actual needs.

[0080] In this embodiment, preferably, as follows: Figures 14 to 19 As shown, the adjustable resistance cover also includes a mounting tube 16, a pressing member 17, a transmission member 18, and a spring 19; wherein, the mounting tube 16 is mounted on the insulating support member 7, and the inner wall of the mounting tube 16 has a plurality of long grooves 161 and short grooves 162 extending along its length direction, and the long grooves 161 and short grooves 162 are arranged alternately and sequentially around the axis of the mounting tube 16; an opening is formed on the side of the long grooves 161 and short grooves 162 near the resistor member 4; the pressing member 17 has a spring 19 extending along its length direction. An avoidance groove 163 extends in the dimensional direction and is located on the side of the short groove 162 near the insulating support 7, and the avoidance groove 163 is connected to the short groove 162; a toothed groove 171 is formed at one end of the pressing member 17 near the transmission member 18, arranged sequentially in its circumference; a guide protrusion 172 is formed along the length direction of the pressing member 17, and a guide protrusion 172 is formed in the outer wall region of the pressing member 17 near the two toothed grooves 171, and the guide protrusion 172 can slide into or out of the long groove 161 or the short groove 162;

[0081] A portion of the transmission component 18 is inserted into the pressing component 17, and the outer wall of the transmission component 18 is formed with a plurality of mating teeth 181 arranged sequentially along its circumference; along the length direction of the adjusting component 5, the adjusting component 5 is sequentially connected to the transmission component 18; the spring 19 is disposed in the insertion hole 43, and along the length direction of the adjusting component 5, one end of the spring 19 is connected to the inner wall of the insertion hole 43, and one end of the adjusting component 5 is inserted into the spring 19; the outer wall of the adjusting component 5 is provided with a limiting protrusion 51, and the limiting protrusion 51 can abut against the side wall of the insertion hole 43;

[0082] When the pressing member 17 is pressed toward the resistor 4, the mating tooth 181 can slide from the long groove 161 into the tooth groove 171. When the pressing member 17 is released, the mating tooth 181 can slide from the tooth groove 171 into the short groove 162. During this process, the spring 19 is compressed by the limiting protrusion 51. When the pressing member 17 is pressed again, the mating tooth 181 slides from the short groove 162 into the tooth groove 171. When the pressing member 17 is released, the spring 19 is in a rebound state and pushes the limiting protrusion 51 to drive the adjusting member 5 to reset. The mating tooth 181 can slide from the tooth groove 171 into the long groove 161.

[0083] As can be seen from the structure described above, the automatic adjustment of the adjusting component 5 can be achieved using the above-mentioned components. The specific operation steps are as follows:

[0084] In the initial state, the guide protrusion 172 of the pressing member 17 and the mating teeth 181 of the transmission member 18 are both located in the elongated groove 161 of the mounting tube 16, and the adjusting member 5 is located outside the insertion hole 43 of the resistor 4. When the pressing member 17 is pressed towards the resistor 4, the pressing member 17 pushes the transmission member 18 to move towards the resistor 4, thereby causing the mating teeth 181 of the transmission member 18 to move out of the elongated groove 161 and slide into the tooth groove 171 of the pressing member 17. When the pressing member 17 is released, the mating teeth 181 of the transmission member 18 can slide from the tooth groove 171 of the pressing member 17 into the short groove 162 of the mounting member. At this time, the adjusting member 5 is also inserted into the socket 43, and the limiting protrusion 51 of the adjusting member 5 can abut against the side wall of the socket 43, which plays the role of limiting the adjusting member 5. The spring 19 is compressed by the limiting protrusion 51, accumulating elastic potential energy, so that it is stably inserted into the socket 43 of the resistor 4.

[0085] When the pressing member 17 is pressed again, the pressing member 17 pushes the transmission member 18 toward the resistor 4, thereby causing the mating teeth 181 of the transmission member 18 to move out of the short groove 162 and slide into the tooth groove 171 of the pressing member 17. When the pressing member 17 is released, the spring 19 is in a rebound state and contacts the limiting protrusion 51, and pushes the limiting protrusion 51 to drive the adjusting member 5 to reset. The mating teeth 181 of the transmission member 18 can slide from the tooth groove 171 of the pressing member 17 into the long groove 161 of the mounting member. At this time, the adjusting member 5 also moves out of the insertion hole 43, that is, the adjusting member 5 is disconnected from the resistor 4.

[0086] As can be seen, simply pressing the pressing component 17 will automatically insert or extend the adjusting component 5 into or out of the socket 43 of the resistor 4, thereby connecting or disconnecting the adjusting component 5 from the resistor 4. The operation is simple, convenient, and saves time and effort.

[0087] Furthermore, preferably, the adjusting member 5 and the transmission member 18 can be connected by a plug-in connection, that is, one of them is provided with a slot, and the end of the other can be plugged into the slot. Of course, the connection method between the adjusting member 5 and the transmission member 18 is not limited to this, and can be selected according to actual needs.

[0088] Furthermore, preferably, the inner wall of the mounting pipe 16 is formed with an annular protrusion arranged along its circumference. The aforementioned long groove 161, short groove 162 and clearance groove 163 are all formed on the annular protrusion to facilitate grooving. Of course, it is not limited to this, and grooving can also be directly made on the inner wall of the mounting pipe 16.

[0089] Furthermore, preferably, along the length direction perpendicular to the mounting pipe 16, the depth of the long groove 161 is greater than the depth of the short groove 162.

[0090] In this embodiment, preferably, as follows: Figures 16 to 18 As shown, the short groove 162 is a V-shaped groove, and one side wall of the short groove 162 is arranged along the length direction of the adjusting member 5, while the other side wall of the short groove 162 is inclined relative to the length direction of the adjusting member 5 to form a first guide slope 20; a second guide slope 201 is formed at the end of the structure between the long groove 161 and the short groove 162, and the first guide slope 20 and the second guide slope 201 are arranged parallel to each other; a third guide slope 202 is formed along one end of the mating tooth 181 along the adjusting member 5, and the third guide slope 202 is adapted to both the first guide slope 20 and the second guide slope 201.

[0091] As can be seen from the structure described above, parallel guide slopes are designed to ensure that the mating teeth 181 can move freely within the long slots 161 and short slots 162, thus avoiding jamming.

[0092] In this embodiment, preferably, as follows: Figure 2 As shown, the cover plate body 1 has a second mounting groove 101, and the insulating seat 9 is installed in the second mounting groove 101, so that the insulating seat 9 and the cover plate body 1 are assembled more firmly and stably. Preferably, in order to further ensure the firmness and stability of the assembly between the insulating seat 9 and the cover plate, glue can be applied to the side wall and bottom of the insulating seat 9 to bond the insulating seat 9 and the inner wall of the second mounting groove 101 together.

[0093] In this embodiment, preferably, as follows: Figure 7 As shown, the conductive component 8 is a flexible connecting wire, which meets the conductivity requirements and is easy to bend without affecting conductivity. Preferably, the conductive component 8 can be welded to the adjusting component 5 and the cover plate body 1 respectively. It should be noted that a certain length of wire is reserved between two adjacent adjusting components 5, so that pulling one adjusting component 5 will not affect the other. Of course, it is not limited to this. The conductive component 8, i.e., the wire, can also be unconnected to the adjusting component 5, but only in contact. For example, holes can be made on all adjusting components 5, and the wire can be passed through each hole in sequence. Similarly, the conductive component 8 can also be unconnected to the cover plate body 1, but only in contact.

[0094] It should also be noted that the structure of the conductive component 8 is not limited to this. The conductive component 8 can also adopt the structure of a metal spring. When the conductive component 8 is a metal spring, the adjusting component 5 and the conductive component 8 are not connected. When an electrical connection is required, only contact is needed. Preferably, the conductive component 8 can be installed on the inner wall of the first mounting cavity 71, and the bottom end of the conductive component 8 is in contact with the cover plate body 1, or connected by welding or other means.

[0095] In this embodiment, preferably, as follows: Figure 13 As shown, the adjusting member 5 is a rod, and a gripping part 6 is formed at one end of the adjusting member 5 exposed on the insulating support member 7.

[0096] As can be seen from the structure described above, the grip part 6 is easy for the operator to hold, thereby facilitating the pushing and pulling of the adjustment component 5.

[0097] In this embodiment, preferably, as follows: Figure 10 As shown, multiple adjustment components 5 are arranged sequentially along the first preset direction a, with a reasonable structural layout. Moreover, by adjusting the size of the area connected to the circuit by the adjustment components 5 at different positions, the resistance value can be adjusted.

[0098] Furthermore, preferably, the first preset direction a, the height direction of the resistor 4, the height direction of the insulating support 7, the thickness direction of the cover plate body 1, the depth direction of the first mounting cavity 71, and the depth direction of the second mounting cavity 91 are all the same, but of course, it is not limited to this.

[0099] In this embodiment, preferably, as follows: Figure 10 As shown, the resistor 4 includes a body 41 and a plurality of protrusions 42. The plurality of protrusions 42 are sequentially arranged on the outer wall of the body 41 along a first preset direction a, so that the resistance value is distributed in a spanning manner along the first preset direction a.

[0100] As can be seen from the structure described above, by embedding multiple protrusions 42 on the body 41, a cross-sectional distribution of resistance value is achieved to meet the usage requirements. It should be noted that: preferably, the material of the protrusions 42 is different from that of the body 41, and the materials of the multiple protrusions 42 arranged sequentially along the vertical direction are also different. Of course, it is not limited to this. The material of the protrusions 42 can also be the same as that of the body 41. By changing the number or width of the protrusions 42, a cross-sectional distribution of resistance value can be achieved, that is, a non-uniform distribution. For example, in this embodiment, the resistor 4 is divided into four regions from top to bottom along the first preset direction a. The resistance value of the first region is R1∈(0Ω, 1Ω), the resistance value of the second region is R2∈(2Ω, 20000Ω), the resistance value of the third region is R3∈(50000Ω, 100MΩ), and the resistance value of the fourth region is R4>100MΩ. Of course, this is just one example.

[0101] Furthermore, preferably, the protrusion 42 is annular and is arranged around the outer periphery of the body 41. Of course, it is not limited to this and other structures can also be used. For example, the protrusion 42 can also be a single protrusion structure, and multiple protrusions are arranged on each layer along the height direction of the body 41, and the multiple protrusions are arranged sequentially along the outer periphery of the body 41, etc.

[0102] It should be noted that the structure of the resistor 4 is not limited to the one described above. Other structures can also be used. For example, the resistor 4 includes a plurality of resistors connected in sequence so that the resistance value is distributed in a spanning manner along the first preset direction a. Preferably, the material of any protrusion 42 is different and is different from the material of the body 41. Of course, it is not limited to this. The spanning distribution of resistance value, i.e., non-uniform distribution, can also be achieved by changing the thickness of the protrusion 42.

[0103] In this embodiment, preferably, as follows: Figure 2 As shown, the adjustable resistance cover also includes an insulating member 11 and a welding ring 12; wherein, the welding ring 12 is disposed on the side of the cover away from the electrode core 15, and the welding ring 12 is pressed against the outside of the positive electrode post 2, and the insulating member 11 covers part of the welding ring 12 so that the welding ring 12 is insulated from the cover; both the insulating member 11 and the welding ring 12 are formed with clearance through holes 72, and the adjusting member 5 passes through the clearance through holes 72 and is electrically connected to the positive electrode post 2, and the clearance through holes 72 play a clearance role.

[0104] Furthermore, preferably, the outer wall of the pole is formed with an assembly groove, which facilitates the formation of an interlocking structure with the upper plastic during injection molding, making the overall structure more robust and stable.

[0105] Furthermore, preferably, this adjustable resistance cover also includes structures such as the lower plastic 13, all of which are existing technologies and will not be described in detail here.

[0106] In this embodiment, preferably, as follows: Figure 6 and Figure 7 As shown, the electrical connector 3 is connected to the positive terminal 2 and the resistor 4 by welding, making the electrical connector more firmly and stably assembled with the positive terminal 2 and the resistor 4. Of course, it is not limited to this; the electrical connector may also only contact the positive terminal 2 without any connection.

[0107] In this embodiment, preferably, as follows: Figure 8 and Figure 9 As shown, the adjustment component 5 is located on the outside of the cover plate body 1 away from the electrode core 15, that is, the adjustment component 5 is exposed outside the battery casing 14, which facilitates adjustment.

[0108] In this embodiment, preferably, as follows: Figure 8 and Figure 9 As shown, at least a portion of the structure of the resistor 4 is located on the outside of the cover plate body 1 away from the electrode core 15, and at least a portion of the structure of the insulating support 7 is located on the outside of the cover plate body 1 away from the electrode core 15, so that the resistor 4 and the insulating support 7 can be assembled with the adjustment member 5 outside the housing 14.

[0109] Example 2

[0110] See Figure 1 As shown, Embodiment 2 of this application also provides a battery, including a housing 14, an electrode core 15, and the resistance-adjustable cover plate described in Embodiment 1 above. The electrode core 15 is disposed within the housing 14, and the resistance-adjustable cover plate seals the opening of the housing 14, with the cover plate body 1 connected to the housing 14. Therefore, it possesses all the beneficial technical effects of the resistance-adjustable cover plate, and the same technical features and beneficial effects will not be repeated.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cover plate with adjustable resistance, characterized in that, include: The system comprises a cover plate body, a positive electrode post, an electrical connector, a resistor, an adjusting component, an insulating support, a conductive component, and an insulating base; wherein the positive electrode post and the insulating base are both mounted on the cover plate body; the resistor is mounted on the insulating base and is insulated from the cover plate body through the insulating base, and the resistor is electrically connected to the positive electrode post through the electrical connector; the insulating support is mounted on the insulating base or the cover plate body. The adjusting member is movably mounted on the resistive element and the insulating support, and there are multiple adjusting members; all of the multiple adjusting members are electrically connected to the cover plate body through the conductive member, and the adjusting member used in the previous adjustment is removed from the resistive element to separate the two, and then another adjusting member is inserted into the resistive element, always keeping only one adjusting member inserted into the resistive element, thereby continuously adjusting the resistance value connected to the circuit; The plurality of the adjustment components are arranged sequentially along a first preset direction, and the first preset direction, the height direction of the resistor, and the thickness direction of the cover plate body are the same.

2. The adjustable resistance cover plate according to claim 1, characterized in that, The resistor has a socket, the insulating support has a clearance through hole, and the adjusting member is movably inserted into the clearance through hole and the socket in sequence, and can move along the socket and the clearance through hole.

3. The adjustable resistance cover plate according to claim 2, characterized in that, The adjustable resistance cover plate further includes a mounting tube, a pressing member, a transmission member, and a spring; wherein, the mounting tube is mounted on the insulating support member, and the inner wall of the mounting tube has a plurality of long grooves and short grooves extending along its length direction, and the long grooves and short grooves are alternately spaced around the axis of the mounting tube; an opening is formed on the side of the long groove and the short groove near the resistive element; the pressing member has a clearance groove extending along its length direction and located on the side of the short groove near the insulating support member, and the clearance groove is connected to the short groove; a toothed groove is formed at the end of the pressing member near the transmission member, arranged sequentially along its circumference; a guide protrusion is formed along the length direction of the pressing member, and the outer wall area of ​​the pressing member near the two toothed grooves is capable of sliding into or out of the long groove or the short groove. A portion of the transmission component is inserted into the pressing component, and the outer wall of the transmission component has a plurality of mating teeth arranged sequentially at intervals along its circumference; the adjusting component and the transmission component are sequentially connected along the length direction of the adjusting component; the spring is disposed in the insertion hole, and one end of the spring is connected to the inner wall of the insertion hole along the length direction of the adjusting component; the outer wall of the adjusting component is provided with a limiting protrusion, and the limiting protrusion can abut against the side wall of the insertion hole and compress the spring; When the pressing member is pressed towards the resistive element, the mating teeth can slide from the long groove into the tooth groove, and when the pressing member is released, the mating teeth can slide from the tooth groove into the short groove, and during this process, the spring is compressed by the limiting protrusion; when the pressing member is pressed again, the mating teeth slide from the short groove into the tooth groove, and when the pressing member is released, the spring is in a rebound state, and pushes the limiting protrusion to drive the adjusting member to reset, and the mating teeth can slide from the tooth groove into the long groove.

4. The adjustable resistance cover plate according to claim 3, characterized in that, The short groove is a V-shaped groove, and one side wall of the short groove is arranged along the length direction of the adjusting member, while the other side wall of the short groove is inclined relative to the length direction of the adjusting member to form a first guide slope. A second guide slope is formed at the end of the structure between the long groove and the short groove, and the first guide slope and the second guide slope are arranged parallel to each other; a third guide slope is formed along one end of the adjusting member of the mating tooth, and the third guide slope is adapted to both the first guide slope and the second guide slope.

5. The adjustable resistance cover plate according to claim 1, characterized in that, The insulating support has a first mounting cavity extending through one end of it near the cover plate body, and the conductive component is installed in the first mounting cavity.

6. The adjustable resistance cover plate according to claim 5, characterized in that, When the insulating support is installed on the insulating base, the insulating base forms a second mounting cavity extending through its top and bottom. The insulating support is installed in the second mounting cavity, and the conductive member contacts the cover plate body through the first mounting cavity and the second mounting cavity.

7. The adjustable resistance cover plate according to claim 1, characterized in that, The adjustable resistance cover also includes a fixing member, which is embedded in the insulating base and is insulated from the main body of the cover. The fixing member has a groove, and the resistor is fixedly installed in the groove. A portion of the resistor extends to the outside of the fixing member and the insulating base and slides with the adjusting member.

8. The adjustable resistance cover plate according to claim 7, characterized in that, The resistive element is detachably threaded to the fixing member; and / or The resistive element is connected to the fixing component by welding or gluing.

9. The adjustable resistance cover plate according to claim 1, characterized in that, The resistor includes a body and a plurality of protrusions. The plurality of protrusions are sequentially disposed on the outer wall of the body along the first preset direction, so that the resistance value is distributed in a spanning manner along the first preset direction.

10. The adjustable resistance cover plate according to claim 9, characterized in that, Each of the protrusions is made of a different material, and each is made of a different material than the body.

11. The adjustable resistance cover plate according to claim 1, characterized in that, The resistive element includes a plurality of resistor sections connected in sequence, such that the resistance value is distributed in a spanning pattern along the first preset direction.

12. The adjustable resistance cover plate according to claim 11, characterized in that, The materials of any of the resistors are different.

13. The resistance-adjustable cover plate according to any one of claims 1 to 12, characterized in that, The adjustable resistance cover plate further includes an insulating component and a welding ring; wherein the welding ring is disposed on the side of the cover plate opposite to the electrode core, and the welding ring is pressed against the outside of the positive electrode post, and the insulating component partially covers the welding ring so that the welding ring is insulated from the cover plate; both the insulating component and the welding ring have clearance through holes, and the adjusting component passes through the clearance through holes and is electrically connected to the positive electrode post; and / or The adjusting member is a rod, and a gripping portion is formed at one end of the adjusting member exposed above the insulating support; and / or The positive terminal post has a first mounting groove, and one end of the electrical connector is mounted in the first mounting groove; and / or The cover plate body has a second mounting groove, and the insulating seat is installed in the second mounting groove; and / or The electrical connectors are respectively connected to the positive terminal and the resistive element by welding; and / or The conductive component is a flexible connecting wire or a metal spring, and when the conductive component is a flexible connecting wire, the conductive component is connected to the adjusting component by welding; and / or The outer wall of the pole post is formed with an assembly groove; and / or The adjusting component is located on the outer side of the cover plate body away from the pole core; and / or At least a portion of the resistor's structure is located on the outer side of the cover plate body, away from the electrode core; and / or At least a portion of the structure of the insulating support is located on the outer side of the cover plate body away from the pole core.

14. A battery, characterized in that, The device includes a housing, an electrode core, and a resistance-adjustable cover plate as described in any one of claims 1 to 13, wherein the electrode core is disposed within the housing, the resistance-adjustable cover plate covers the opening end of the housing, and the cover plate body of the resistance-adjustable cover plate is connected to the housing.

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