Conductive electrode column non-falling structure forming process, pole column structure and battery cover

Abstract

The present invention provides a process for forming a conductive electrode column structure that does not fall off, a pole column structure and a battery cover plate, the process comprising the following steps: S1, forming a pole column to obtain a pole column with a supporting disk body; S2, rubber-coating the pole column, rubber-coating the outer periphery of the supporting disk body of the pole column to obtain a sealing ring, forming a rubber-coated pole column; S3, forming a fixed ring, obtaining a fixed ring for fixing the pole column; S4, rubber-coating the fixed ring, rubber-coating the fixed ring to obtain a rubber-coated inner ring, forming a rubber-coated fixed ring; S5, assembling and welding, assembling the rubber-coated pole column and the rubber-coated fixed ring, and installing them to the top cover plate; S6, finished product. The present invention prefabricates the rubber-coated pole column, the rubber-coated fixed ring and the top cover semi-finished product at the same time, and then assembles them, thereby speeding up the production speed of the battery cover plate.

Description

Technical Field

[0001] The present invention relates to the field of battery processing, and more specifically, to a conductive electrode column non-falling structure forming process, a pole column structure and a battery cover. Background Art

[0002] With the increasing development of electronic products, batteries are being used more and more widely. As electronic products become smaller and more portable, a stable and convenient power source is needed. Batteries play a big role in all aspects of modern social life because of their simple structure, easy to carry, simple charging and discharging operation, unaffected by external climate and temperature, and stable and reliable performance. The battery top cover includes a cover plate and a pole. The quality of the top cover directly affects the performance of the battery. In the prior art, the battery cover is often formed one component at a time during the molding process, and then the components are assembled. This production method is not only cumbersome, but also often leads to problems in the assembly of sealing rings and pole fixing rings. Summary of the invention

[0003] The purpose of the present invention is to provide a conductive electrode column non-falling structure forming process, a pole structure and a battery cover plate in view of the defects of the above-mentioned prior art.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] In a first aspect, a process for forming a conductive electrode column non-falling structure is provided, the process comprising the steps of:

[0006] S1, forming a pole to obtain a pole with a supporting disk;

[0007] S2, rubber coating of the pole, the rubber coating is formed around the supporting disk of the pole to obtain a sealing ring, so as to form a rubber-coated pole;

[0008] S3, forming a fixing ring to obtain a fixing ring for fixing the pole;

[0009] S4, rubber-coating the fixing ring, and forming the fixing ring with rubber-coating to obtain a rubber-coated inner ring, thereby forming a rubber-coated fixing ring;

[0010] S5. Assemble and weld the rubber-coated pole and the rubber-coated fixing ring, and install them on the top cover plate;

[0011] S6, finished product.

[0012] Preferably, an annular notch is formed at an outer corner of the upper surface of the support disc, the pole is rubber-coated, and a sealing ring is formed by rubber-coating the outer periphery of the support disc of the pole, including the following steps:

[0013] The sealing ring is obtained by encapsulating and molding along the annular notch on the support disc body, the outer peripheral edge of the support disc body and the lower surface of the support disc body;

[0014] A sealing portion is formed on the lower surface of the sealing ring.

[0015] The sealing ring is formed along the upper surface, outer periphery and lower surface of the support disc body, which is equivalent to wrapping the support disc body. This molding method can make the sealing ring and the pole become one and not easy to fall off, and at the same time, it can also increase the sealing surface of the sealing ring, thereby increasing the sealing effect.

[0016] Preferably, the fixing ring is formed by injection molding to obtain a rubber-coated inner ring according to the outer shape of the pole and the inner shape of the fixing ring, and obtaining the rubber-coated fixing ring includes the following steps:

[0017] An annular inner convexity is formed on the fixing ring, and a plurality of positioning holes are formed on the annular inner convexity;

[0018] An annular groove is formed on the outer periphery of the rubber-coated inner ring corresponding to the inner convexity of the annular ring, and a plurality of positioning columns corresponding to the positioning holes are formed in the annular groove;

[0019] A positioning ring body is formed at the lower part of the outer periphery of the fixing ring.

[0020] The annular groove cooperates with the annular inner convexity so that the fixing ring can fix the rubber-coated inner ring. The positioning column and the positioning hole enable the fixing effect of the fixing ring and the rubber-coated inner ring to be better. The fixing ring cooperates with the rubber-coated inner ring to fix the pole on the pole mounting hole.

[0021] Preferably, the fixing ring is covered with rubber, and the fixing ring is covered with rubber to obtain a rubber-covered inner ring. The forming of the rubber-covered fixing ring includes the following steps:

[0022] Weld bursting discs on the top cover plate with reserved pole installation holes and bursting holes and test air tightness to obtain a semi-finished top cover;

[0023] A sinking groove is formed on the outer periphery of the pole mounting hole, and the sinking groove is adapted to the outer periphery of the fixing ring.

[0024] The sinking groove is used to limit the position of the fixing ring on the top cover, so that the fixing ring will not move on the top cover and thus affect the fixation of the pole.

[0025] Preferably, the fixing ring is covered with rubber, and the fixing ring is covered with rubber to obtain a rubber-covered inner ring. The forming of the rubber-covered fixing ring includes the following steps:

[0026] Weld bursting discs on the top cover plate with reserved pole installation holes and bursting holes and test air tightness to obtain a semi-finished top cover;

[0027] A sinking groove is formed on the periphery of the pole mounting hole, and the sinking groove is adapted to the positioning ring body on the outer periphery of the fixing ring. The sinking groove is used to limit the position of the fixing ring on the top cover, and the fixing ring is limited on the top cover through the cooperation between the positioning ring body and the sinking groove, so that the fixing ring will not move on the top cover and thus affect the fixing of the pole.

[0028] In a second aspect, a pole structure is provided, wherein the pole structure is arranged on a pole setting hole of a battery cover, and the pole structure comprises a pole, a rubber-coated fixing ring, and a sealing ring fixedly arranged on the pole;

[0029] Wherein, a support disc is arranged at the outer periphery of the pole, and an annular notch is arranged at the outer corner of the upper surface of the support disc;

[0030] The sealing ring is formed by rubber encapsulation along the annular notch on the support disc body, the outer peripheral edge of the support disc body and the lower surface of the support disc body;

[0031] A sealing portion is arranged on the lower surface of the sealing ring.

[0032] Preferably, the rubber-coated fixing ring includes: a rubber-coated inner ring wrapped around the outer periphery of the pole, and a fixing ring wrapped around the rubber-coated inner ring and the outer periphery of the sealing ring.

[0033] The fixing ring cooperates with the rubber-coated inner ring to fix the pole so that the pole is confined on the pole mounting hole.

[0034] Preferably, the rubber-coated inner ring and the fixed ring are an integrally formed structure, an annular groove is provided on the outer periphery of the rubber-coated inner ring, and a plurality of positioning columns are provided in the annular groove;

[0035] An annular inner convexity is arranged on the upper part of the fixing ring, and a plurality of positioning holes corresponding to the positioning posts are arranged on the annular inner convexity.

[0036] The annular groove cooperates with the annular inner convexity so that the fixing ring can fix the rubber-coated inner ring. The positioning column and the positioning hole enable the fixing effect of the fixing ring and the rubber-coated inner ring to be better. The fixing ring cooperates with the rubber-coated inner ring to fix the pole on the pole mounting hole.

[0037] In a third aspect, a battery cover is provided, wherein a pole mounting hole is provided on the battery cover, a pole structure is provided on the pole mounting hole, and the pole structure comprises a pole, a rubber-coated fixing ring and a sealing ring fixedly provided on the pole;

[0038] Wherein, a support disc is arranged at the outer periphery of the pole, and an annular notch is arranged at the outer corner of the upper surface of the support disc;

[0039] The sealing ring is formed by rubber encapsulation along the annular notch on the support disc body, the outer peripheral edge of the support disc body and the lower surface of the support disc body;

[0040] A sealing portion is provided on the lower surface of the sealing ring;

[0041] The rubber-coated fixing ring comprises: a rubber-coated inner ring wrapped around the outer periphery of the pole, and a fixing ring wrapped around the rubber-coated inner ring and the outer periphery of the sealing ring;

[0042] The rubber-coated inner ring and the fixed ring are an integrally formed structure, an annular groove is provided on the outer periphery of the rubber-coated inner ring, and a plurality of positioning columns are provided in the annular groove;

[0043] An annular inner convexity is arranged on the upper part of the fixing ring, and a plurality of positioning holes corresponding to the positioning posts are arranged on the annular inner convexity;

[0044] A positioning ring body is formed at the lower part of the outer periphery of the fixing ring, and a sinking groove is arranged at the outer periphery of the pole mounting hole, and the sinking groove is adapted to the positioning ring body.

[0045] Preferably, the lower surface of the pole is arranged on the upper end surface of the opening of the pole mounting hole. The pole is not arranged through the pole mounting hole, so the space inside the battery is not occupied by the pole, which significantly increases the internal space of the battery.

[0046] In a fourth aspect, a sealing ring structure is also provided, wherein the sealing ring structure is arranged on a pole, a supporting plate body is arranged on the pole, the sealing ring is arranged to wrap the supporting plate body, the sealing ring comprises an injection-molded base wrapping the supporting plate body, and an overmolded layer wrapping the injection-molded base, and a sealing portion is arranged at the bottom of the sealing ring.

[0047] The beneficial effects brought by the present invention are as follows: first, by prefabricating the rubber-coated pole, the rubber-coated fixing ring and the top cover semi-finished product at the same time and then assembling them, the production speed of the battery cover is accelerated; second, by injection molding the rubber-coated sealing ring on the periphery of the supporting disk body of the pole, there is no need to assemble the sealing ring, thereby reducing the steps of assembling the sealing ring; third, the pole is arranged on the pole mounting hole and supported by the supporting disk body, so the pole does not pass through the battery cover to enter the interior of the battery, thereby increasing the space inside the battery, which is beneficial to increasing the battery capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is a process flow chart of an embodiment of the present invention;

[0049] Figure 2 It is an overall schematic diagram of a battery cover according to an embodiment of the present invention;

[0050] Figure 3 This is a schematic diagram of assembling a rubber-coated pole and a rubber-coated fixing ring according to an embodiment of the present invention;

[0051] Figure 4 A schematic diagram of a welding pole according to an embodiment of the present invention;

[0052] Figure 5 A partial cross-sectional view of a battery cover according to an embodiment of the present invention;

[0053] Figure 6 is a schematic cross-sectional diagram of a pole structure according to an embodiment of the present invention;

[0054] Figure 7 For the embodiment of the present invention Figure 7 A local enlarged view of point A;

[0055] Figure 8 is a schematic cross-sectional diagram of a pole according to an embodiment of the present invention;

[0056] Fig. 9 is a schematic cross-sectional view of a sealing ring according to an embodiment of the present invention;

[0057] Fig.10 This is a schematic cross-sectional view of the rubber-encapsulated inner ring according to an embodiment of the present invention;

[0058] Fig.11 is a cross-sectional schematic diagram of a fixing ring according to an embodiment of the present invention;

[0059] Fig.12 FIG. 4 is a schematic cross-sectional diagram of another pole structure according to an embodiment of the present invention.

[0060] Among them: 1. Top cover plate; 11. Sinking groove; 12. Pole mounting hole; 2. Pole semi-finished product; 21. Pole; 211. Support plate; 2111. Annular notch; 212. Positioning platform; 22. Sealing ring; 221. Upper surface of sealing ring; 222. Outer peripheral surface of sealing ring; 2231. Flat surface; 2232. Rubber-coated protrusion; 23. Rubber-coated inner ring; 231. Positioning column; 232. Annular groove; 24. Fixing ring; 241. Positioning ring body; 2411. Chamfered structure; 242. Annular inner protrusion; 2421. Positioning hole; 3. Lower plastic; 31. Annular support platform; 4. Blasting hole; 5. Blasting disc; 6. Rubber-coated pole; 7. Rubber-coated fixing ring. DETAILED DESCRIPTION

[0061] The preferred embodiments of the present invention are described below. A person skilled in the art will be able to implement the embodiments using relevant techniques in the art according to the following description and will be able to better understand the innovations and benefits of the present invention.

[0062] The invention provides a conductive electrode column non-falling structure forming process, a pole column structure and a battery cover.

[0063] The objective of the present invention is achieved through the following technical solutions:

[0064] First, as Figure 1 Please also refer to Figures 2 to 11 , a process for forming a conductive electrode column non-falling structure, the process comprising the steps of:

[0065] S1, forming a pole to obtain a pole 21 with a supporting plate 211;

[0066] Furthermore, the pole 21 can be formed by pressing, and the pole 21 material is placed in a pressing mold and pressed to obtain a formed pole 21 workpiece. In some possible embodiments of the pole 21 forming, the pole 21 can also be formed by injection molding, or other forming methods such as cutting, casting, etc. This is not limited here.

[0067] S2, rubber coating of the pole, the outer periphery of the support plate 211 of the pole 21 is coated with rubber to obtain a sealing ring 22, thereby forming a rubber-coated pole 6;

[0068] After the pole 21 is obtained, the sealing ring 22 is encapsulated and molded on the outer periphery of the support plate 211 by an injection molding machine using an encapsulation machine. The sealing ring 22 is molded on the pole 21 to form an encapsulated pole 6 with an integrated structure with the pole 21 .

[0069] As a possible embodiment, after obtaining the pole 21, an injection molding base can be injection molded on the periphery of the support plate 211 by an injection molding machine, and the injection molding base wraps the support plate 211 to form a molding, and a rubber coating layer is formed on the periphery of the injection molding base by a rubber coating machine. The injection molding base and the rubber coating layer constitute the sealing ring 22, and the sealing ring 22 is formed on the pole 21 to form a rubber-coated pole 6 with an integrated structure with the pole 21.

[0070] S3, forming a fixing ring to obtain a fixing ring 24 for fixing the pole 21;

[0071] Furthermore, the fixing ring 24 can be formed by injection molding, and the fixing ring 24 workpiece can be injection molded by an injection molding machine; of course, the fixing ring 24 can also be formed by other methods such as ramming or thermoplastic molding, which is not specifically limited here.

[0072] S4, rubber-coating the fixing ring, and forming the fixing ring with rubber-coating to obtain a rubber-coated inner ring, thereby forming a rubber-coated fixing ring;

[0073] The rubber-coated inner ring 23 is rubber-coated inside the fixing ring 24 by a rubber-coating machine to form a rubber-coated fixing ring 7. According to the outer peripheral shape of the pole 21, the inner peripheral shape of the rubber-coated inner ring 23 can be rubber-coated, and according to the inner peripheral shape of the fixing ring 24, the outer peripheral shape of the rubber-coated inner ring 23 can be rubber-coated.

[0074] As a possible embodiment, a rubber-coated inner ring 23 workpiece can be injection molded inside the fixing ring 24 by an injection molding machine to form a rubber-coated fixing ring 7. According to the outer peripheral shape of the pole 21, the inner peripheral shape of the rubber-coated inner ring 23 can be injection molded, and according to the inner peripheral shape of the fixing ring 24, the outer peripheral shape of the rubber-coated inner ring 23 can be injection molded.

[0075] As another possible embodiment, the rubber-coated inner ring 23 can be directly injection-molded on the outer periphery of the rubber-coated pole 6 by an injection molding machine, and then the fixing ring 24 can be injection-molded on the outer periphery of the rubber-coated inner ring 23, so that the rubber-coated pole 6, the rubber-coated inner ring 23 and the fixing ring 24 form an integrated structure.

[0076] S5. Assemble and weld the rubber-coated pole and the rubber-coated fixing ring, and install them on the top cover plate;

[0077] Furthermore, the top cover plate 1 is obtained by injection molding by an injection molding machine. During the injection molding process, the top cover plate 1 is reserved with two pole mounting holes 12 for mounting the pole 21. The pole 21 includes a positive pole 21 and a negative pole 21. The positive pole 21 and the negative pole 21 are respectively arranged on the two pole mounting holes 12. During the injection molding process, the top cover plate 1 is reserved with a blasting hole 4 for arranging a blasting disc 5. The blasting disc 5 is laser welded on the blasting hole 4. When the internal pressure of the battery is too high, the blasting disc 5 is promptly blasted to release the pressure. The welding air tightness between the blasting disc and the top cover plate is detected by helium detection to obtain a semi-finished top cover plate.

[0078] It should be noted that the semi-finished top cover product includes: an injection-molded top cover plate 1 and a bursting piece 5 welded on the bursting hole 4 .

[0079] Further, the rubber-coated pole 6 and the rubber-coated fixing ring 7 are assembled, and the rubber-coated pole 6 is installed in the rubber-coated fixing ring 7 to obtain a pole semi-finished product 2;

[0080] Furthermore, the rubber-coated pole 6 is placed inside the rubber-coated fixing ring 7 for installation, the rubber-coated inner ring 23 is connected to the support disc 211, and the support disc 211 is limited. The rubber-coated inner ring 23 is an annular structure, and the pole 21 passes through the through hole in the middle of the rubber-coated inner ring 23, and the rubber-coated inner ring 23 is wrapped around the outer periphery of the pole 21.

[0081] Welding the pole 21, welding the pole semi-finished product 2 to the top cover semi-finished product to obtain a battery top cover;

[0082] Furthermore, the pole semi-finished product 2 is welded to the top cover semi-finished product by laser welding. Specifically, the lower surface of the fixing ring 24 is welded to the upper surface of the top cover plate 1 by laser welding. Since the pole semi-finished product 2 is composed of the rubber-coated pole 6 and the rubber-coated fixing ring 7, the rubber-coated fixing ring 7 is an integrated structure of the rubber-coated inner ring 23 and the fixing ring 24. When the fixing ring 24 is welded on the top cover plate 1, the rubber-coated inner ring 23 forms a riveting pressure on the support plate 211, thereby limiting the pole 21.

[0083] S6, finished product. Assemble the plastic to get the battery cover.

[0084] Furthermore, the lower plastic 3 is obtained by injection molding by an injection molding machine. During the injection molding process, two pole mounting holes 12 and a blasting hole 4 are reserved for the lower plastic 3. The two pole mounting holes 12 on the lower plastic 3 are used to mount the pole 21. The pole 21 includes a positive pole 21 and a negative pole 21. The positive pole 21 and the negative pole 21 are respectively arranged on the two pole mounting holes 12. The pole 21 on the lower plastic 3 is provided with an annular support platform 31 arranged on the periphery. The annular support platform 31 is used to support the support disc 211, and then support the pole 21 to prevent the pole 21 from falling into the battery.

[0085] Furthermore, the airtightness test is a helium test, which is performed by evacuating the workpiece to be tested and then filling it with helium of a certain pressure. The outside of the workpiece to be tested is a vacuum box with a certain vacuum degree requirement. The specific pressure and vacuum degree are related to the type of the workpiece to be tested and the sealing degree requirements. The vacuum box is connected to the leak detection port of the helium mass spectrometer leak detector. If the workpiece to be tested has a leak, the helium leaking into the vacuum box can be detected by the helium mass spectrometer leak detector.

[0086] In the embodiment of the present invention, please refer to Figures 2 to 11 The outer corner of the upper surface of the support plate 211 is formed with an annular notch 2111, the pole is rubber-coated, and a sealing ring 22 is formed by rubber-coating the outer periphery of the support plate 211 of the pole 21, including the following steps:

[0087] After the pole 21 is obtained, the sealing ring 22 is encapsulated and formed at the periphery of the support plate 211 by using an encapsulation machine. The sealing ring 22 is formed on the pole 21 to form an encapsulated pole 6 with an integrated structure with the pole 21 .

[0088] The sealing ring 22 wraps the support disc body 211 by the annular notch 2111 on the support disc body 211, the outer peripheral edge of the support disc body 211 and the lower surface of the support disc body 211, thereby increasing the sealing surface of the sealing ring 22, and the sealing surface includes: a first sealing surface formed by the lower surface of the sealing ring 22 and the surface of the top cover plate 1, a second sealing surface formed by the outer peripheral surface 222 of the sealing ring 22 and the inner peripheral surface of the fixing ring 24, and a third sealing surface formed by the upper surface 221 of the sealing ring and the lower surface of the rubber-coated inner ring 23.

[0089] As a possible embodiment, an injection molded base (not shown in the figure) can be injection molded along the annular notch 2111 on the support disc 211, the outer periphery of the support disc 211 and the lower surface of the support disc 211. The injection molded base is obtained by injection molding on the support disc 211 by an injection molding machine. In this way, the injection molded base wraps the support disc 211 so that the injection molded base is supported by the support disc 211. At the same time, the contact area between the injection molded base and the support disc 211 is increased, so that the injection molded base is not easy to fall off, and the integrated structure of the rubber-coated pole 6 is more stable. A rubber-coated layer (not shown in the figure) is overmolded on the injection molded base to form the sealing ring 22. The rubber coating layer is obtained by rubber coating on the injection molding base by a rubber coating machine. The rubber coating layer is an important structure for the sealing surface formed by the contact between the sealing ring 22 and the top cover plate 1. The rubber coating layer wraps the injection molding base to form an integrated structure with the injection molding base and the pole 21. At the same time, since the injection molding base wraps the support disc body 211, the rubber coating layer also wraps the annular notch 2111 on the support disc body 211, the outer peripheral edge of the support disc body 211 and the lower surface of the support disc body 211 to form a wrap around the support disc body 211, thereby increasing the sealing surface of the sealing ring 22. The sealing surface includes: a first sealing surface formed by the lower surface of the sealing ring 22 and the surface of the top cover plate 1, a second sealing surface formed by the outer peripheral surface 222 of the sealing ring 22 and the inner peripheral surface of the fixing ring 24, and a third sealing surface formed by the upper surface 221 of the sealing ring and the lower surface of the rubber-coated inner ring 23.

[0090] A sealing portion is formed on the lower surface of the sealing ring 22 .

[0091] Further, the sealing portion is arranged at the end of the lower surface of the sealing ring 22, and the sealing portion is a semicircular rubber-coated protrusion 2232, and a groove is formed adjacent to the rubber-coated protrusion 2232. The first sealing surface includes: an end sealing surface formed by the rubber-coated protrusion 2232 being squeezed and deformed with the upper surface of the top cover plate 1 under the action of pressure, and a straight sealing surface formed by the straight surface 2231 in the lower surface contacting with the top cover plate 1.

[0092] It should be noted that the rubber-encapsulated protrusion 2232 and the groove are reserved when the sealing ring 22 is rubber-encapsulated and molded.

[0093] The sealing ring 22 is formed along the upper surface, outer periphery and lower surface of the support plate body 211, which is equivalent to wrapping the support plate body 211. This molding method can make the sealing ring 22 and the pole 21 become one, not easy to fall off, and can also increase the sealing surface of the sealing ring 22, thereby increasing the sealing effect.

[0094] In an embodiment of the present invention, the fixing ring is encapsulated with rubber, and encapsulating the fixing ring 24 with rubber includes the following steps:

[0095] An annular inner protrusion 242 is formed on the fixing ring 24, and a plurality of positioning holes 2421 are formed on the annular inner protrusion 242; when the fixing ring 24 is injection-molded by an injection molding machine, the annular inner protrusion 242 is integrally injection-molded, and the annular inner protrusion 242 is used to limit the rubber-coated inner ring 23, so that the rubber-coated inner ring 23 is stable and does not fall off.

[0096] An annular groove 232 is formed on the outer periphery of the rubber-coated inner ring 23 corresponding to the annular inner convexity 242, and a plurality of positioning posts 231 corresponding to the positioning holes 2421 are formed in the annular groove 232; when the rubber-coated inner ring 23 is rubber-coated by a rubber-coating machine, an annular groove 232 is formed on the outer periphery of the rubber-coated inner ring 23 due to the existence of the annular inner convexity 242, and at the same time, because a plurality of positioning holes 2421 are formed on the annular inner convexity 242, when the rubber-coated inner ring 23 is rubber-coated by a rubber-coating machine, a plurality of positioning posts 231 corresponding to the positioning holes 2421 are rubber-coated, and the positioning posts 231 correspond to the positioning holes 2421, so that the rubber-coated fixing ring 7 forms an integrated structure while increasing the stability and strength of the fixing ring 24.

[0097] A positioning ring body 241 is formed at the lower part of the outer periphery of the fixing ring 24. When the fixing ring 24 is injection molded by an injection molding machine, the positioning ring body 241 is integrally injection molded, and the positioning ring body 241 is used to limit the position of the rubber-coated fixing ring 7 on the top cover plate 1. The positioning ring body 241 and the top cover plate 1 are laser welded, and then the fixing ring 24 is welded to the top cover plate 1.

[0098] The annular groove 232 cooperates with the annular inner protrusion 242 so that the fixing ring 24 can fix the rubber-coated inner ring 23. The positioning column 231 and the positioning hole 2421 enable the fixing effect of the fixing ring 24 and the rubber-coated inner ring 23 to be better. The fixing ring 24 cooperates with the rubber-coated inner ring 23 to fix the pole 21 on the pole mounting hole 12.

[0099] In an embodiment of the present invention, welding the bursting disc 5 on the top cover plate 1 with the pole mounting hole 12 and the bursting hole 4 reserved and testing the air tightness to obtain the top cover semi-finished product includes the following steps:

[0100] The outer periphery of the pole mounting hole 12 is formed with a sinking groove 11, which is adapted to the outer periphery of the fixing ring 24. The sinking groove 11 is used to limit the position of the fixing ring 24 on the top cover so that the fixing ring 24 will not move on the top cover and thus affect the fixing of the pole 21.

[0101] Furthermore, the inner periphery of the sinking groove 11 forms a limiting surface, and the fixing ring 24 is limited by the inner periphery of the sinking groove 11, which facilitates welding and makes the fixing ring 24 more stable, thereby making the pole 21 more firmly fixed. The fixing ring 24 is welded in the sinking groove 11 by laser welding.

[0102] In an embodiment of the present invention, the injection molding of a top cover with reserved pole mounting holes 12 and blasting holes 4 comprises the following steps:

[0103] A sinking groove 11 is formed on the periphery of the pole mounting hole 12, and the sinking groove 11 is adapted to the positioning ring body 241 on the periphery of the fixing ring 24. The sinking groove 11 is used to limit the position of the fixing ring 24 on the top cover, and the fixing ring 24 is limited on the top cover by the cooperation of the positioning ring body 241 and the sinking groove 11, so that the fixing ring 24 will not move on the top cover and thus affect the fixing of the pole 21.

[0104] Furthermore, the positioning ring body 241 is welded to the sinking groove 11 by laser welding, and a chamfered structure 2411 is formed between the upper surface and the peripheral surface of the positioning ring body 241. The chamfered structure 2411 is an avoidance structure, which facilitates the installation of the fixing ring 24 to the sinking groove 11 and also facilitates welding.

[0105] In general, the conductive electrode column non-falling structure molding process can be performed by using multiple injection molding machines to respectively inject the rubber-coated pole 6, the rubber-coated fixing ring 7, the top cover plate 1 and the lower plastic 3 to obtain four modular components, and the four modular components are assembled and welded to obtain a finished anti-drop battery cover. During the whole process, the sealing ring 22 and the pole 21 are integrally formed, which saves the installation step of the sealing ring 22 and avoids the problem of difficult installation of the sealing ring 22. The fixing ring 24 and the rubber-coated inner ring 23 are integrally formed, which saves the installation process of the fixing ring 24 and the rubber-coated inner ring 23, thereby shortening the assembly process of the battery cover.

[0106] Second, as Figures 2 to 11 As shown, a pole structure is provided, the pole structure is arranged on the pole 21 setting hole of the battery cover, and the pole 21 structure includes the pole 21, a rubber-coated fixing ring 7 and a sealing ring 22 fixedly arranged on the pole 21;

[0107] The outer periphery of the pole 21 is provided with a support plate 211, and an annular notch 2111 is provided at the outer corner of the upper surface of the support plate;

[0108] Furthermore, the sealing ring 22 includes an annular notch 2111 along the supporting disc body 211 , an outer peripheral edge of the supporting disc body 211 , and a lower surface of the supporting disc body 211 , which are molded by a molding machine.

[0109] After the pole 21 is obtained, the sealing ring 22 is encapsulated and formed at the periphery of the support plate 211 by using an encapsulation machine. The sealing ring 22 is formed on the pole 21 to form an encapsulated pole 6 with an integrated structure with the pole 21 .

[0110] The sealing ring 22 wraps the support disc body 211 by the annular notch 2111 on the support disc body 211, the outer peripheral edge of the support disc body 211 and the lower surface of the support disc body 211, thereby increasing the sealing surface of the sealing ring 22, and the sealing surface includes: a first sealing surface formed by the lower surface of the sealing ring 22 and the surface of the top cover plate 1, a second sealing surface formed by the outer peripheral surface 222 of the sealing ring 22 and the inner peripheral surface of the fixing ring 24, and a third sealing surface formed by the upper surface 221 of the sealing ring and the lower surface of the rubber-coated inner ring 23.

[0111] As a possible embodiment, the sealing ring 22 includes an injection-molded base (not shown in the figure) along the annular notch 2111 on the support disc body 211, the outer periphery of the support disc body 211 and the lower surface of the support disc body 211, and an overmolded layer (not shown in the figure) overmolded on the outside of the injection-molded base; further, the injection-molded base is obtained by injection molding on the support disc body 211 by an injection molding machine, so that the injection-molded base wraps the support disc body 211, so that the injection-molded base is supported by the support disc body 211, and at the same time, the contact area between the injection-molded base and the support disc body 211 is increased, so that the injection-molded base is not easy to fall off, and the integrated structure of the overmolded pole 6 is more stable. The rubber coating layer is obtained by rubber coating on the injection molding base by a rubber coating machine. The rubber coating layer is an important structure for the sealing surface formed by the contact between the sealing ring 22 and the top cover plate 1. The rubber coating layer wraps the injection molding base to form an integrated structure with the injection molding base and the pole 21. At the same time, since the injection molding base wraps the support disc body 211, the rubber coating layer also wraps the annular notch 2111 on the support disc body 211, the outer peripheral edge of the support disc body 211 and the lower surface of the support disc body 211 to form a wrap around the support disc body 211, thereby increasing the sealing surface of the sealing ring 22. The sealing surface includes: a first sealing surface formed by the lower surface of the sealing ring 22 and the surface of the top cover plate 1, a second sealing surface formed by the outer peripheral surface 222 of the sealing ring and the inner peripheral surface of the fixing ring 24, and a third sealing surface formed by the upper surface 221 of the sealing ring and the lower surface of the rubber coating inner ring 23.

[0112] The lower surface of the sealing ring 22 is provided with a sealing portion.

[0113] Furthermore, the sealing portion is arranged at the end of the lower surface of the sealing ring 22, and the sealing portion is a rubber-coated protrusion 2232, and a groove is formed adjacent to the rubber-coated protrusion 2232. The first sealing surface includes an end sealing surface formed by the rubber-coated protrusion 2232 being squeezed and deformed with the upper surface of the top cover plate 1 under the action of pressure, and a flat sealing surface formed by the flat surface 2231 in the lower surface contacting the top cover plate 1. While providing a sealing effect, the sealing ring 22 also supports the support plate 211, and further supports the pole 21.

[0114] In the embodiment of the pole 21 structure of the present invention, the rubber-coated fixing ring 7 includes: a rubber-coated inner ring 23 wrapped around the outer periphery of the pole 21 , and a fixing ring 24 wrapped around the rubber-coated inner ring 23 and the outer periphery of the sealing ring 22 .

[0115] Specifically, when the fixing ring 24 is injection molded by an injection molding machine, the annular inner protrusion 242 is integrally molded, and the annular inner protrusion 242 is used to limit the rubber-coated inner ring 23, so that the rubber-coated inner ring 23 is stable and does not fall off. When the rubber-coated inner ring 23 is overmolded by the rubber-coated machine, an annular groove 232 is formed on the outer periphery of the rubber-coated inner ring 23 due to the presence of the annular inner protrusion 242.

[0116] The fixing ring 24 cooperates with the rubber-coated inner ring 23 to fix the pole 21 so that the pole 21 is confined on the pole mounting hole 12 .

[0117] In the pole structure embodiment of the present invention, the rubber-coated inner ring 23 and the fixing ring 24 are integrally formed. An annular groove 232 is provided on the outer periphery of the rubber-coated inner ring 23. A plurality of positioning posts 231 are provided in the annular groove 232.

[0118] An annular inner protrusion 242 is disposed on the upper portion of the fixing ring 24 , and a plurality of positioning holes 2421 corresponding to the positioning posts 231 are disposed on the annular inner protrusion 242 .

[0119] Furthermore, because a plurality of positioning holes 2421 are formed on the annular inner protrusion 242, when the rubber-coated inner ring 23 is rubber-coated by a rubber-coating machine, a plurality of positioning columns 231 corresponding to the positioning holes 2421 will be rubber-coated. The positioning columns 231 correspond to the positioning holes 2421, so that the rubber-coated fixing ring 7 forms an integrated structure, while increasing the stability and strength of the fixing ring 24.

[0120] Furthermore, the fixing ring 24 is an annular fixing ring, the annular inner protrusion 242 is adapted to the annular fixing ring, the annular fixing ring includes two arc surface segments, and two straight surface segments connecting the two arc surface segments, the upper surface of each straight surface segment of the annular inner protrusion 242 corresponding to the annular fixing ring is provided with two positioning holes 2421, and each arc surface segment of the annular inner protrusion 242 corresponding to the annular fixing ring is provided with only one positioning hole 2421 in the middle. Correspondingly, the positioning column 231 is provided corresponding to the positioning hole 2421.

[0121] In some possible embodiments, the number of the positioning holes 2421 and the positioning posts 231 may be less or more, which is not specifically limited here.

[0122] The annular groove 232 cooperates with the annular inner protrusion 242, so that the fixing ring 24 can fix the rubber-coated inner ring 23. The positioning column 231 and the positioning hole 2421 make the fixing effect of the fixing ring 24 and the rubber-coated inner ring 23 better. The fixing ring 24 cooperates with the rubber-coated inner ring 23 to fix the pole 21 on the pole mounting hole 12.

[0123] In the pole structure embodiment of the present invention, the battery cover plate includes: a top cover plate 1 provided with pole mounting holes 12, and a lower plastic 3 provided with corresponding pole 21 setting holes, and the lower plastic 3 is arranged below the top cover plate 1. The lower plastic 3 is used to support the top cover plate 1 and the pole 21 at the same time.

[0124] Furthermore, the top cover plate 1 is obtained by injection molding by an injection molding machine. During the injection molding process, the top cover plate 1 is reserved with two pole mounting holes 12 for mounting the pole 21. The pole 21 includes a positive pole 21 and a negative pole 21. The positive pole 21 and the negative pole 21 are respectively arranged on the two pole mounting holes 12. During the injection molding process, the top cover plate 1 is reserved with a blasting hole 4 for arranging a blasting disc 5. The blasting disc 5 is laser welded on the blasting hole 4. When the internal pressure of the battery is too high, the blasting disc 5 is promptly blasted to release the pressure. A sinking groove 11 is arranged on the outer periphery of the pole mounting hole 12 of the top cover plate 1. The sealing ring 22 and the fixing ring 24 are installed in the sinking groove 11.

[0125] Furthermore, the lower plastic 3 is obtained by injection molding by an injection molding machine. During the injection molding process, two pole mounting holes 12 and a blasting hole 4 are reserved for the lower plastic 3. The two pole mounting holes 12 on the lower plastic 3 are used to mount the pole 21. The pole 21 includes a positive pole 21 and a negative pole 21. The positive pole 21 and the negative pole 21 are respectively arranged on the two pole mounting holes 12. The pole 21 on the lower plastic 3 is provided with an annular support platform 31 arranged on the periphery. The annular support platform 31 is used to support the support disc 211, and then support the pole 21 to prevent the pole 21 from falling into the battery.

[0126] Thirdly, Figures 2 to 12 As shown, a battery cover is provided, the battery cover is provided with a pole mounting hole 12, the pole mounting hole 12 is provided with a pole 21 structure, the pole 21 structure includes a pole 21, a rubber-coated fixing ring 7 and a sealing ring 22 fixedly arranged on the pole 21;

[0127] The outer periphery of the pole 21 is provided with a support plate 211, and an annular notch 2111 is provided at the outer corner of the upper surface of the support plate;

[0128] The sealing ring 22 is formed by encapsulating along the annular notch 2111 on the supporting disc body 211 , the outer peripheral edge of the supporting disc body 211 and the lower surface of the supporting disc body 211 by an encapsulating machine.

[0129] After the pole 21 is obtained, the sealing ring 22 is encapsulated and formed at the periphery of the support plate 211 by using an encapsulation machine. The sealing ring 22 is formed on the pole 21 to form an encapsulated pole 6 with an integrated structure with the pole 21 .

[0130] The sealing ring 22 wraps the support disc body 211 by the annular notch 2111 on the support disc body 211, the outer peripheral edge of the support disc body 211 and the lower surface of the support disc body 211, thereby increasing the sealing surface of the sealing ring 22, and the sealing surface includes: a first sealing surface formed by the lower surface of the sealing ring 22 and the surface of the top cover plate 1, a second sealing surface formed by the outer peripheral surface 222 of the sealing ring 22 and the inner peripheral surface of the fixing ring 24, and a third sealing surface formed by the upper surface 221 of the sealing ring and the lower surface of the rubber-coated inner ring 23.

[0131] As a possible embodiment, the sealing ring 22 includes an injection-molded base (not shown in the figure) along the annular notch 2111 on the support disc body 211, the outer periphery of the support disc body 211 and the lower surface of the support disc body 211, and an overmolded layer (not shown in the figure) overmolded on the outside of the injection-molded base; further, the injection-molded base is obtained by injection molding on the support disc body 211 by an injection molding machine, so that the injection-molded base wraps the support disc body 211, so that the injection-molded base is supported by the support disc body 211, and at the same time, the contact area between the injection-molded base and the support disc body 211 is increased, so that the injection-molded base is not easy to fall off, and the integrated structure of the overmolded pole 6 is more stable. The rubber coating layer is obtained by rubber coating on the injection molding base by a rubber coating machine. The rubber coating layer is an important structure for the sealing surface formed by the contact between the sealing ring 22 and the top cover plate 1. The rubber coating layer wraps the injection molding base to form an integrated structure with the injection molding base and the pole 21. At the same time, since the injection molding base wraps the support disc body 211, the rubber coating layer also wraps the annular notch 2111 on the support disc body 211, the outer peripheral edge of the support disc body 211 and the lower surface of the support disc body 211 to form a wrap around the support disc body 211, thereby increasing the sealing surface of the sealing ring 22. The sealing surface includes: a first sealing surface formed by the lower surface of the sealing ring 22 and the surface of the top cover plate 1, a second sealing surface formed by the outer peripheral surface 222 of the sealing ring and the inner peripheral surface of the fixing ring 24, and a third sealing surface formed by the upper surface 221 of the sealing ring and the lower surface of the rubber coating inner ring 23.

[0132] The lower surface of the sealing ring 22 is provided with a sealing portion;

[0133] Furthermore, the sealing portion is arranged at the end of the lower surface of the sealing ring 22, and the sealing portion is a rubber-coated protrusion 2232, and a groove is formed adjacent to the rubber-coated protrusion 2232. The first sealing surface includes an end sealing surface formed by the rubber-coated protrusion 2232 being squeezed and deformed with the upper surface of the top cover plate 1 under the action of pressure, and a flat sealing surface formed by the flat surface 2231 in the lower surface contacting the top cover plate 1. While providing a sealing effect, the sealing ring 22 also supports the support plate 211, and further supports the pole 21.

[0134] The rubber-coated fixing ring 7 includes: a rubber-coated inner ring 23 wrapped around the outer periphery of the pole 21, and a fixing ring 24 wrapped around the rubber-coated inner ring 23 and the outer periphery of the sealing ring 22;

[0135] Specifically, when the fixing ring 24 is injection molded by an injection molding machine, the annular inner protrusion 242 is integrally molded, and the annular inner protrusion 242 is used to limit the rubber-coated inner ring 23, so that the rubber-coated inner ring 23 is stable and does not fall off. When the rubber-coated inner ring 23 is overmolded by the rubber-coated machine, an annular groove 232 is formed on the outer periphery of the rubber-coated inner ring 23 due to the presence of the annular inner protrusion 242.

[0136] The rubber-coated inner ring 23 and the fixing ring 24 are integrally formed. An annular groove 232 is provided on the outer periphery of the rubber-coated inner ring 23. A plurality of positioning columns 231 are provided in the annular groove 232.

[0137] An annular inner protrusion 242 is disposed on the upper portion of the fixing ring 24, and a plurality of positioning holes 2421 corresponding to the positioning posts 231 are disposed on the annular inner protrusion 242;

[0138] Furthermore, because a plurality of positioning holes 2421 are formed on the annular inner protrusion 242, when the rubber-coated inner ring 23 is rubber-coated by a rubber-coating machine, a plurality of positioning columns 231 corresponding to the positioning holes 2421 will be rubber-coated. The positioning columns 231 correspond to the positioning holes 2421, so that the rubber-coated fixing ring 7 forms an integrated structure, while increasing the stability and strength of the fixing ring 24.

[0139] Furthermore, the fixing ring 24 is an annular fixing ring 24, the annular inner protrusion 242 is adapted to the annular fixing ring 24, the annular fixing ring 24 includes two arc surface segments, and two straight surface segments connecting the two arc surface segments, the upper surface of each straight surface segment of the annular inner protrusion 242 corresponding to the annular fixing ring 24 is provided with two positioning holes 2421, and each arc surface segment of the annular inner protrusion 242 corresponding to the annular fixing ring 24 is provided with only one positioning hole 2421 in the middle. Correspondingly, the positioning column 231 is provided corresponding to the positioning hole 2421.

[0140] In some possible embodiments, the number of the positioning holes 2421 and the positioning posts 231 may be less or more, which is not specifically limited here.

[0141] A positioning ring body 241 is formed at the lower part of the outer periphery of the fixing ring 24 , and a sinking groove 11 is arranged at the outer periphery of the pole mounting hole 12 , and the sinking groove 11 is adapted to the positioning ring body 241 .

[0142] Furthermore, the battery cover plate includes: a top cover plate 1 provided with a pole mounting hole 12, and a lower plastic 3 provided with a corresponding pole 21 setting hole, and the lower plastic 3 is arranged below the top cover plate 1. The lower plastic 3 is used to support the top cover plate 1 and the pole 21 at the same time.

[0143] Furthermore, the top cover plate 1 is obtained by injection molding by an injection molding machine. During the injection molding process, the top cover plate 1 is reserved with two pole mounting holes 12 for mounting the pole 21. The pole 21 includes a positive pole 21 and a negative pole 21. The positive pole 21 and the negative pole 21 are respectively arranged on the two pole mounting holes 12. During the injection molding process, the top cover plate 1 is reserved with a blasting hole 4 for arranging a blasting disc 5. The blasting disc 5 is laser welded on the blasting hole 4. When the internal pressure of the battery is too high, the blasting disc 5 is promptly blasted to release the pressure. A sinking groove 11 is arranged on the outer periphery of the pole mounting hole 12 of the top cover plate 1. The sealing ring 22 and the fixing ring 24 are installed in the sinking groove 11.

[0144] Furthermore, the lower plastic 3 is obtained by injection molding by an injection molding machine. During the injection molding process, two pole mounting holes 12 and a blasting hole 4 are reserved for the lower plastic 3. The two pole mounting holes 12 on the lower plastic 3 are used to mount the pole 21. The pole 21 includes a positive pole 21 and a negative pole 21. The positive pole 21 and the negative pole 21 are respectively arranged on the two pole mounting holes 12. The pole 21 on the lower plastic 3 is provided with an annular support platform 31 arranged on the periphery. The annular support platform 31 is used to support the support disc 211, and then support the pole 21 to prevent the pole 21 from falling into the battery.

[0145] In the battery cover embodiment of the present invention, the lower surface of the pole 21 is arranged on the upper end surface of the opening of the pole mounting hole 12, and the pole 21 is not arranged through the pole mounting hole 12, so the interior of the battery is not occupied by the pole 21, which significantly improves the internal space of the battery. The height of the pole 21 is preferably 3.0mm to 3.6mm. The length of a traditional battery pole is more than 7.0mm. Since the anti-drop structure of the pole 21 of the present invention is the support plate 211, which is located above the top cover 1, there is no need to set a support structure inside the battery, thereby greatly reducing the length requirement of the pole 21, which is only half the height of a traditional pole.

[0146] Furthermore, the lower surface of the pole 21 is arranged on the open upper end surface of the annular support platform 31, and the pole 21 is not arranged through the pole mounting hole 12, so the interior of the battery is not occupied by the pole 21, which significantly improves the internal space of the battery.

[0147] As a possible embodiment, Fig.12 A positioning platform 212 is provided on the lower surface of the pole 21, and the positioning platform is provided in the annular support platform 31. The positioning platform 212 aligns the pole 21 with the pole mounting hole 12, so as to facilitate the installation of the pole 21. At the same time, the positioning platform 212 extends into the pole mounting hole 12, but does not completely pass through the pole setting hole 21, so the space inside the battery is not occupied by the pole 21, which significantly increases the internal space of the battery.

[0148] Fourthly, Figures 6 to 9 As shown, a sealing ring 22 structure is also provided, and the sealing ring 22 structure is arranged on the pole 21, and a supporting disc 211 is arranged on the pole 21. The sealing ring 22 wraps the supporting disc 211, and the sealing ring is molded by rubber encapsulation.

[0149] As a possible embodiment of the sealing ring, the sealing ring 22 includes an injection-molded base that wraps the support plate 211, and an overmolding layer that wraps the injection-molded base, and a sealing portion is provided at the bottom of the sealing ring 22. Specifically, the injection-molded base is obtained by injection molding on the support plate 211 by an injection molding machine, so that the injection-molded base wraps the support plate 211, so that the injection-molded base is supported by the support plate 211, and at the same time, the contact area between the injection-molded base and the support plate 211 is increased, so that the injection-molded base is not easy to fall off, and the integrated structure of the overmolded pole 6 is more stable.

[0150] The rubber coating is formed by rubber coating on the injection molded base by a rubber coating machine. The rubber coating is an important structure for the sealing ring 22 to form a sealing surface. The rubber coating wraps the injection molded base and forms an integrated structure with the injection molded base and the pole 21. Fig. 9 Since the injection molded base wraps the support disc body 211, the rubber coating layer also wraps the annular notch 2111 on the support disc body 211, the outer periphery of the support disc body 211 and the lower surface of the support disc body 211 to form a rubber coating around the support disc body 211, thereby increasing the sealing surface of the sealing ring 22.

[0151] Further, combined with Fig. 9 The sealing portion is arranged at the end of the lower surface of the sealing ring 22 , and the sealing portion is a semicircular rubber-coated protrusion 2232 , and a groove is formed adjacent to the rubber-coated protrusion 2232 .

[0152] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific embodiments of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the scope of protection of the present invention.

Claims

1. A process for forming a conductive electrode column without falling off structure, characterized in that: The process comprises the steps of: S1, forming a pole to obtain a pole with a supporting disk; S2, rubber coating of the pole, the rubber coating is formed around the supporting disk of the pole to obtain a sealing ring, so as to form a rubber-coated pole; The outer corner of the upper surface of the support disc is formed with an annular notch, the pole is covered with rubber, and a sealing ring is formed by covering the support disc with rubber around the pole, including the following steps: The sealing ring is obtained by encapsulating and molding along the annular notch on the support disc body, the outer peripheral edge of the support disc body and the lower surface of the support disc body; A sealing portion is formed on the lower surface of the sealing ring; S3, forming a fixing ring to obtain a fixing ring for fixing the pole; S4, rubber-coating the fixing ring, and forming the fixing ring with rubber-coating to obtain a rubber-coated inner ring, thereby forming a rubber-coated fixing ring; S5. Assemble and weld the rubber-coated pole and the rubber-coated fixing ring, and install them on the top cover plate; S6, finished product; The fixing ring is covered with rubber, and the fixing ring is covered with rubber, including the steps of: An annular inner convexity is formed on the fixing ring, and a plurality of positioning holes are formed on the annular inner convexity; An annular groove is formed on the outer periphery of the rubber-coated inner ring corresponding to the inner convexity of the annular ring, and a plurality of positioning columns corresponding to the positioning holes are formed in the annular groove; A positioning ring body is formed at the lower part of the outer periphery of the fixing ring.

2. The process for forming a conductive electrode column without falling off structure according to claim 1, characterized in that: The fixing ring is covered with rubber, and the fixing ring is covered with rubber to obtain a rubber-covered inner ring. The forming of the rubber-covered fixing ring includes the following steps: Weld bursting discs on the top cover plate with reserved pole installation holes and bursting holes and test air tightness to obtain a semi-finished top cover; A sinking groove is formed on the outer periphery of the pole mounting hole, and the sinking groove is adapted to the outer periphery of the fixing ring.

3. The process for forming a conductive electrode column without falling off structure according to claim 1, characterized in that: The fixing ring is covered with rubber, and the fixing ring is covered with rubber to obtain a rubber-covered inner ring. The forming of the rubber-covered fixing ring includes the following steps: A sinking groove is formed on the periphery of the pole mounting hole, and the sinking groove is adapted to the positioning ring body on the outer periphery of the fixing ring.

4. A pole structure, the pole structure is arranged on the pole setting hole of the battery cover, characterized in that: The pole structure comprises a pole prepared by the conductive pole non-falling structure forming process according to claim 1, a rubber-coated fixing ring and a sealing ring fixedly arranged on the pole; a supporting disk is arranged on the outer periphery of the pole.

5. The pole structure according to claim 4, characterized in that: The rubber-coated fixing ring includes: a rubber-coated inner ring wrapped around the outer periphery of the pole, and a fixing ring wrapped around the rubber-coated inner ring and the outer periphery of the sealing ring.

6. The pole structure according to claim 5, characterized in that: The rubber-coated inner ring and the fixing ring are an integrally formed structure.

7. A battery cover, characterized in that: The battery cover is provided with a pole mounting hole, the pole mounting hole is provided with a pole structure, and the pole structure includes a pole, a rubber-coated fixing ring and a sealing ring fixedly arranged on the pole; A sealing portion is provided on the lower surface of the sealing ring; The rubber-coated fixing ring comprises: a rubber-coated inner ring wrapped around the outer periphery of the pole, and a fixing ring wrapped around the rubber-coated inner ring and the outer periphery of the sealing ring; The rubber-coated inner ring and the fixed ring are an integrally formed structure, an annular groove is provided on the outer periphery of the rubber-coated inner ring, and a plurality of positioning columns are provided in the annular groove; An annular inner convexity is arranged on the upper part of the fixing ring, and a plurality of positioning holes corresponding to the positioning posts are arranged on the annular inner convexity; A positioning ring body is formed at the lower part of the outer periphery of the fixing ring, and a sinking groove is arranged at the outer periphery of the pole mounting hole, and the sinking groove is adapted to the positioning ring body.

8. The battery cover as claimed in claim 7, characterized in that: The lower surface of the pole is arranged on the upper end surface of the opening of the pole mounting hole.

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