Battery cover pouring gate structure

Abstract

The utility model provides a pouring gate structure of a battery cover. The pouring gate structure of the battery cover comprises a battery cover mold and a pouring gate, the latent sheet is arranged on the battery cover mold and is communicated with the battery cover mold, and the glue injection runner is lapped on one side edge of the latent sheet and is communicated with the latent sheet. Based on the pouring gate structure of the battery cover, through the structural characteristic that the main material runner side is lapped on a battery cover mold, the hard pulling force generated when a product and a water gap are broken in mold production is reduced; the problem of poor product appearance caused by too large hard tension is avoided, the product process yield is improved, the product reject ratio is reduced, and therefore rapid mass production delivery can be achieved. In addition, due to the structural characteristic of side edge lap joint, the reject ratio of products is reduced, the production stability is improved, the appearance of the products does not need to be guaranteed by always optimizing molds and forming parameters, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of product structure design, and particularly relates to a gate structure for a battery cover. Background Art

[0002] The battery cover is an indispensable shell component in the assembly of electronic products, especially for electronic products such as mobile phones and tablets. The battery cover includes two structural solutions, namely, a full-wrap battery cover and a cover plate structure.

[0003] Currently, the production of the battery cover is as follows: as Figure 1 shown, during the preliminary development of the mold design, an inverted mold design is adopted for the gating scheme. The gating method of the inverted mold is to use a three-plate mold opening scheme (nozzle fixing plate + sprue plate + female mold). The gate of the main runner 1 adopts a circular gate structure and is directly vertically connected to the submarine gate 2. The diameter of the circular gate is 0.6 - 0.8 mm.

[0004] With the above production structure, when disassembling the main runner and the mold after the injection molding is completed, due to the circular gate structure with vertical contact, it is easy to have a concave appearance problem after disassembly, resulting in a high rate of defective products in production, and even may cause problems in the entire batch of products, thus delaying the product delivery. Summary of the Utility Model

[0005] In view of the above technical problems, the utility model provides a gate structure for a battery cover.

[0006] To solve the above technical problems, the utility model provides a gate structure for a battery cover, which includes: a battery cover mold; a submarine gate, which is arranged on the battery cover mold and is communicated with the battery cover mold; an injection runner, which is lapped on one side edge of the submarine gate and is communicated with the submarine gate.

[0007] In the gate structure for a battery cover provided by the utility model, it may further have the following feature: a gate is opened on the side wall at the bottom of the injection runner, and the gate is communicated with the submarine gate.

[0008] In the gate structure for a battery cover provided by the utility model, it may further have the following feature: the gate is an oval structure.

[0009] In the gate structure for a battery cover provided by the utility model, it may further have the following feature: the major axis of the oval structure is 0.6 ± 0.02 mm.

[0010] In the gate structure for a battery cover provided by the utility model, it may further have the following feature: the minor axis of the oval structure is 0.3 ± 0.02 mm.

[0011] In a gate structure for pouring a battery cover provided by the present utility model, it may further have the following feature: The glue injection runner is lapped on the inner side edge of the sub-plate.

[0012] In a gate structure for pouring a battery cover provided by the present utility model, it may further have the following feature: The sub-plate is located on the inner side edge of the battery cover mold, and the upper end protrudes from the edge of the battery cover mold.

[0013] The present utility model also provides a battery cover for injecting glue by using the above-mentioned gate structure for pouring a battery cover.

[0014] The present utility model also provides an electronic product having the above-mentioned battery cover.

[0015] In an electronic product provided by the present utility model, it may further have the following feature: The electronic product is a mobile phone, a tablet or a smart wearable product.

[0016] The beneficial effects of the present utility model are as follows:

[0017] In the gate structure for pouring a battery cover of the present utility model, it includes a battery cover mold, a sub-plate and a glue injection runner. Among them, the sub-plate is arranged on the battery cover mold and is communicated with the battery cover mold. The glue injection runner is lapped on one side edge of the sub-plate and is communicated with the sub-plate. Based on the gate structure of this battery cover, due to the structural feature that the main material runner is lapped on the battery cover mold on the side, the hard pulling force when the product breaks from the water inlet during mold production is reduced; the problem of poor product appearance caused by excessive hard pulling force is avoided, the product process yield is improved, the product rejection rate is reduced, and thus mass production and delivery can be achieved quickly. In addition, the structural feature of this side lapping reduces the rejection rate of the product, improves the production stability, does not need to always optimize the mold and molding parameters to ensure the product appearance, and reduces the production cost.

[0018] In addition, a gate is opened on the side wall at the bottom of the glue injection runner, so that the side wall of the glue injection runner is communicated with the sub-plate, realizing side lapping and feeding of the glue injection runner, thereby improving the problem of poor appearance in product production.

[0019] In addition, the gate is of an oval structure. The length of the major axis of the oval gate is 0.6 ± 0.02 mm, and the length of the minor axis is 0.3 ± 0.02 mm. The contact area between the oval gate structure and the sub-plate is reduced compared with the area of a circular gate with the same major axis as its major axis. By reducing the contact area, the hard pulling force during splitting is reduced, and the phenomenon of product scrapping caused by the problem of concave drawing at the product water inlet position is improved.

[0020] Moreover, the present application also provides a battery cover formed by injecting glue using the above-mentioned glue injection port structure of the battery cover, and an electronic product having the battery cover. By using the glue injection port structure of the battery cover, the product yield of the battery cover is improved, and thus the market competitiveness of the electronic product having the battery cover is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural view of the glue injection runner in the prior art in contact with the submarine gate;

[0022] Figure 2 is a schematic structural view of the gate structure of the battery cover in this embodiment;

[0023] Figure 3 is Figure 2 an enlarged view of part A in

[0024] Figure 4 is a schematic structural view of the gate in this embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] The present utility model provides a gate structure of a battery cover, a battery cover and an electronic product. In this embodiment, the electronic product is a mobile phone, and the rear battery cover of the mobile phone is prepared by injecting glue using the above-mentioned gate structure of the battery cover.

[0027] As Figure 2 shown, the gate structure of the battery cover includes a battery cover mold, a submarine gate 20 and a glue injection runner 30.

[0028] The battery cover mold is an injection mold for injecting glue into the battery cover. The mold includes a nozzle fixing plate, a sprue plate, a female mold, a male mold and their corresponding core assemblies required for injecting the battery cover. The battery cover 10 is obtained by injecting glue through the battery cover mold.

[0029] As Figure 3 shown, the submarine gate 20 is arranged on the side edge of the core of the battery cover mold. It is a circular submarine gate structure with an upward opening and is communicated with the battery cover mold. The upper end protrudes from the upper edge of the battery cover mold.

[0030] The glue injection runner 30 is laterally placed on the side edge of the inner side of the submarine gate 20. A gate 31 is opened on the side wall at the bottom of the glue injection runner 30, and the gate 31 is communicated with the side edge of the submarine gate 20.

[0031] As Figure 4As shown, the gate 31 has an oval structure. The major axis of the oval gate 31 is 0.6 ± 0.02 mm, and the minor axis is 0.3 ± 0.02 mm. In this embodiment, the major axis of the gate 31 is 0.6 mm, and the minor axis is 0.3 mm.

[0032] In the above embodiment, the electronic product is a mobile phone, and the battery cover mold is a mobile phone battery cover mold. In other embodiments, the electronic product can also be a tablet or a smart wearable device (smart electronic watch), and the battery cover mold is replaced with the battery cover mold of the corresponding product.

[0033] In the gate structure of the battery cover according to the above embodiment, it includes a battery cover mold, a sub - sheet, and a glue injection runner. Among them, the sub - sheet is arranged on the battery cover mold and is connected to the battery cover mold. The glue injection runner is lapped on one side edge of the sub - sheet and is connected to the sub - sheet. Based on the gate structure of the battery cover, due to the structural feature that the main material runner is lapped on the battery cover mold, during mold production, the hard pulling force when the product breaks from the sprue is reduced; it avoids the problem of poor product appearance caused by excessive hard pulling force, improves the yield rate of the product manufacturing process, reduces the defective rate of the product, and thus enables rapid mass production and delivery. In addition, the structural feature of the side - lapping reduces the defective rate of the product, improves the production stability, does not require always optimizing the mold and molding parameters to ensure the product appearance, and reduces the production cost.

[0034] In addition, a gate is opened on the side wall at the bottom of the glue injection runner, so that the side wall of the glue injection runner is connected to the sub - sheet, realizing side - lapping injection of the glue injection runner, thereby improving the problem of poor appearance during product production.

[0035] Furthermore, the gate has an oval structure. The length of the major axis of the oval gate is 0.6 ± 0.02 mm, and the length of the minor axis is 0.3 ± 0.02 mm. The contact area between the oval gate structure and the sub - sheet is reduced compared to the area of a circular gate with the same major axis as its radius. By reducing the contact area, the hard pulling force during splitting is reduced, and it improves the phenomenon of product scrapping caused by the concave problem at the product sprue position.

[0036] Moreover, this application also provides a battery cover formed by injecting glue using the above - mentioned battery cover injection gate structure and an electronic product having the battery cover. Using this battery cover injection gate structure, the product yield rate of the battery cover is improved, and further the market competitiveness of the electronic product having the battery cover is improved.

[0037] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these changes.

Claims

1. A battery cover inlet structure, characterized in that: include: Battery cover mold; A latent sheet, the latent sheet is arranged on the battery cover mold and communicated with the battery cover mold, A glue injection flow channel is overlapped on one side of the latent sheet and is communicated with the latent sheet.

2. The battery cover inlet structure according to claim 1, characterized in that: A gate is provided on the side wall at the bottom of the glue injection flow channel, and the gate is communicated with the latent sheet.

3. The battery cover inlet structure according to claim 2, characterized in that: The gate is an elliptical structure.

4. The battery cover inlet structure according to claim 3, characterized in that: The major axis of the elliptical structure is 0.6±0.02 mm.

5. The battery cover inlet structure according to claim 3, characterized in that: The minor axis of the elliptical structure is 0.3±0.02 mm.

6. The battery cover inlet structure according to claim 1, characterized in that: The glue injection channel overlaps the inner side edge of the latent sheet.

7. The battery cover inlet structure according to claim 1, characterized in that: The latent sheet is located on the inner side of the battery cover mold, and the upper end thereof protrudes from the edge of the battery cover mold.

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