Pole cover plate with ceramic ring

Abstract

The utility model provides a pole cover plate with a ceramic ring, which comprises an optical cover plate, a ceramic ring, a ceramic ring and a ceramic ring, the optical cover plate is provided with two placing holes and placing grooves, and the placing grooves are arranged on the side edges of the placing holes; the two pole assemblies are respectively arranged in the placing holes; and the lower plastic is arranged at the bottom of the light cover plate. The lower plastic cement is directly fixed on the hole at the bottom of the light cover plate in a buckling manner, so that the production efficiency is high; pPS injection molding is added to the pole monomer, so that the insulation performance of a product can be effectively improved, the insulation, liquid leakage and the like caused by high temperature of the battery are avoided in the formation and capacity grading stages of a finished battery cell, a light cover plate fixing ring is stamped into a whole, a one-step fixing ring stamping process is omitted, the labor cost is reduced, and meanwhile, the machine equipment and manufacturing cost is reduced.

Description

Technical Field

[0001] This application relates to an electrode cap, and more particularly to an electrode cap with a ceramic ring. Background Technology

[0002] In the lithium-ion battery manufacturing field, the structural design and production process of the cover plate assembly directly affect the battery's safety, reliability, and manufacturing cost. In traditional cover plate assemblies, the lower plastic and the cover plate are often fixed by adhesive bonding or screw fastening. These methods are not only cumbersome but also require high assembly precision, resulting in limited production efficiency. On the other hand, the cover plate and the fixing ring usually need to be independently stamped before assembly, leading to complex processes, increased equipment investment, and higher labor costs. Utility Model Content

[0003] This application provides an electrode cap plate with a ceramic ring to solve the problems existing in related technologies. The technical solution is as follows:

[0004] This application provides an embodiment of an electrode cap plate with a ceramic ring, comprising:

[0005] A light cover plate has two placement holes and a placement groove, with the placement groove located on the side of the placement holes;

[0006] Two pole post assemblies are respectively installed in the placement hole;

[0007] The lower plastic is located at the bottom of the cover plate.

[0008] In one implementation,

[0009] The two terminal components are a positive terminal component and a negative terminal component. The positive terminal component and the negative terminal component have the same structure, but the placement angles of the two placement slots are different.

[0010] In one implementation, it further includes:

[0011] A sealing ring is installed in the placement groove. When the pole post assembly is installed in the placement groove, the sealing ring is located between the pole post assembly and the light cover plate.

[0012] In one implementation,

[0013] The positive terminal assembly includes:

[0014] The electrode post is placed in the placement groove and fits against the sealing ring.

[0015] The ceramic ring is mounted on the electrode post and is located in the placement groove.

[0016] In one implementation, it further includes:

[0017] When the electrode post and ceramic ring are placed inside the placement hole, the plastic is applied to the placement hole so that the electrode post and ceramic ring are enclosed within the placement hole.

[0018] In one implementation, it further includes:

[0019] Explosion-proof valve, the explosion-proof valve is installed on the cover plate.

[0020] In one implementation,

[0021] The explosion-proof valve is located between the two placement holes.

[0022] In one implementation, it further includes:

[0023] Explosion-proof valve film, explosion-proof valve film is compatible with explosion-proof valve.

[0024] In one implementation, it further includes:

[0025] The buckle is located on the lower plastic part and is adapted to fit the placement hole.

[0026] In one implementation,

[0027] The ceramic ring has an injection-molded layer.

[0028] The advantages or beneficial effects of the above technical solutions include at least the following:

[0029] The lower plastic is directly fixed to the hole at the bottom of the cover plate by a snap-fit ​​method, which has high production efficiency; the terminal block adds a PPS injection molding process, which can effectively improve the insulation performance of the product, so that the finished cell avoids the risk of insulation and leakage caused by high temperature of the battery during the formation and capacity testing stages. The cover plate fixing ring is stamped into one piece, reducing the fixing ring stamping process, reducing labor costs, and reducing machine equipment and manufacturing costs.

[0030] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0031] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0032] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0033] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention after splicing.

[0034] 100. Cover plate; 110. Placement hole; 120. Placement slot;

[0035] 200, Terminal assembly; 210, Terminal; 220, Ceramic ring;

[0036] 300, lower plastic;

[0037] 400. Sealing ring;

[0038] 500, Apply plastic;

[0039] 600, Explosion-proof valve; 610, Explosion-proof valve film; 620, Buckle; 630, Injection molding layer. Detailed Implementation

[0040] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0041] Figures 1-2 This diagram illustrates the structure of a pole post 210 cover plate with a ceramic ring 220 according to an embodiment of this application. Figures 1-2 As shown, the pole post 210 cover plate may include:

[0042] The light cover plate 100 has two placement holes 110 and a placement groove 120, with the placement groove 120 located on the side of the placement hole 110.

[0043] Two pole post assemblies 200 are respectively disposed in the placement hole 110;

[0044] The lower plastic 300 is located at the bottom of the cover plate 100.

[0045] In this embodiment, the cover plate 100 is integrally stamped, and the placement groove 120 is a U-shaped groove. During installation, the cover plate 100 is pre-stamped, the electrode assembly 200 is injection molded, the electrode assembly 200 is placed into the placement hole 110, and the two electrode assemblies 200 are rotated in different directions along the placement groove 120. After placement, the electrode 210 ring assembly on the cover plate 100 is bent 90° towards the electrode 210 direction using a bending die, and then injection molded using a two-color injection molding machine. After injection molding, the lower plastic 300 is detachably installed on the cover plate using a snap-fit ​​620. The lower plastic 300 is then installed after being placed in a plastic mold for encapsulation injection molding.

[0046] The lower plastic 300 engages with the anti-locking hole on the cover plate 100;

[0047] The lower plastic 300 is directly fixed to the hole at the bottom of the cover plate 100 by means of clips 620, which has high production efficiency; the electrode post 210 adds a PPS injection molding process to the individual cells, which can effectively improve the insulation performance of the product and avoid the risks of insulation and leakage caused by high temperature of the battery during the formation and capacity testing stages. The fixing ring of the cover plate 100 is stamped into one piece, reducing the fixing ring stamping process, reducing labor costs, and reducing machine equipment and manufacturing costs.

[0048] like Figures 1-2 As shown, in one embodiment,

[0049] The two terminal components 200 are a positive terminal component 200 and a negative terminal component 200, respectively. The positive terminal component 200 and the negative terminal component 200 have the same structure, but the placement angles of the two placement slots 120 are different.

[0050] In this embodiment, the protrusions in the placement grooves 120 of the positive terminal assembly 200 and the negative terminal assembly 200 have different angles, which serve to identify the positive and negative terminals during assembly, prevent the two terminal assemblies 200 from being placed incorrectly, and effectively increase the torque of the terminal 210.

[0051] like Figures 1-2 As shown, in one embodiment, it further includes:

[0052] A sealing ring 400 is disposed in the placement groove 120. When the pole post assembly 200 is disposed in the placement groove 120, the sealing ring 400 is located between the pole post assembly 200 and the light cover plate 100.

[0053] In this embodiment, before the positive and negative electrode components are placed into the placement groove 120, the sealing ring 400 is placed into the placement groove 120 in advance, and the two electrode components 200 are rotated in different directions along the placement groove 120. After placement, they are placed into the plastic mold for encapsulation injection molding, and finally the lower plastic 300 is installed.

[0054] like Figures 1-2 As shown, in one embodiment,

[0055] Positive terminal assembly 200 includes:

[0056] The pole post 210 is disposed in the placement groove 120 and is in contact with the sealing ring 400.

[0057] Ceramic ring 220 is disposed on pole post 210 and located in placement groove 120.

[0058] In this embodiment, the ceramic ring 220 is bonded to the electrode 210 by brazing.

[0059] Compared to traditional plastic materials, ceramic materials are more heat-resistant, unaffected by welding, have stronger insulation properties than plastic materials, are less prone to electric current breakdown, and have higher hardness (220 ceramic rings) that are less likely to break, resulting in stronger mechanical torque in the product.

[0060] like Figures 1-2 As shown, in one embodiment, it further includes:

[0061] When the electrode post 210 and the ceramic ring 220 are placed in the placement hole 110, the upper plastic 500 is placed on the placement hole 110 so that the electrode post 210 and the ceramic ring 220 are wrapped in the placement hole 110.

[0062] In one implementation, it further includes:

[0063] An explosion-proof valve 600 is installed on the light cover plate 100.

[0064] In this embodiment, after stamping the cover plate 100, the explosion-proof valve 600 is welded between the two placement holes 110.

[0065] like Figures 1-2 As shown, in one embodiment, it further includes:

[0066] Explosion-proof valve film 610, which is compatible with explosion-proof valve 600.

[0067] In this embodiment, the lower plastic 300 is installed on the cover plate 100 by means of a snap fastener 620 to apply a film to the explosion-proof valve 600, thereby preventing external microparticles from getting stuck inside the valve, thus extending the service life of the lithium battery explosion-proof valve 600 and improving the safety performance of the lithium battery.

[0068] like Figures 1-2 As shown, in one embodiment, it further includes:

[0069] Buckle 620 is set on the lower plastic 300 and is adapted to the placement hole 110.

[0070] In this embodiment, the lower plastic 300 is engaged with the placement hole 110 by the buckle 620, which facilitates its installation on the cover plate 100.

[0071] like Figures 1-2 As shown, in one embodiment,

[0072] The ceramic ring 220 has an injection-molded layer 630.

[0073] In this embodiment, the injection layer 630 is injection molded using a PPS injection molding process.

[0074] The functions of each module in each device of this utility model embodiment can be found in the corresponding description in the above method, and will not be repeated here.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0077] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A pole post cover plate with a ceramic ring, characterized in that, include: A light cover plate, the light cover plate having two placement holes and a placement groove, the placement groove being disposed on the side of the placement holes; Two pole post assemblies are respectively disposed in the placement hole; The lower plastic is disposed at the bottom of the cover plate.

2. The pole post cover plate with a ceramic ring according to claim 1, characterized in that, The two electrode components are a positive electrode component and a negative electrode component, respectively. The positive electrode component and the negative electrode component have the same structure, but the placement angles of the two placement slots are different.

3. The pole post cover plate with a ceramic ring according to claim 2, characterized in that, Also includes: A sealing ring is disposed in the placement groove. When the pole assembly is disposed in the placement groove, the sealing ring is located between the pole assembly and the light cover plate.

4. The pole post cover plate with a ceramic ring according to claim 3, characterized in that, The positive electrode assembly includes: The electrode post is disposed in the placement groove and is fitted with the sealing ring; A ceramic ring is disposed on the pole post and located within the placement groove.

5. The pole post cover plate with a ceramic ring according to claim 4, characterized in that, Also includes: When the electrode post and the ceramic ring are placed in the placement hole, the plastic is applied to the placement hole so that the electrode post and the ceramic ring are wrapped inside the placement hole.

6. The pole post cover plate with a ceramic ring according to claim 1, characterized in that, Also includes: An explosion-proof valve is disposed on the light cover plate.

7. A pole post cover plate with a ceramic ring according to claim 6, characterized in that, The explosion-proof valve is located between the two placement holes.

8. A pole post cover plate with a ceramic ring according to claim 6, characterized in that, Also includes: An explosion-proof valve film is provided, which is compatible with the explosion-proof valve.

9. The pole post cover plate with a ceramic ring according to claim 1, characterized in that, Also includes: A buckle is provided on the lower plastic and is adapted to the placement hole.

10. A pole post cover plate with a ceramic ring according to claim 3, characterized in that, The ceramic ring has an injection-molded layer.

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