CN210061834U - Ultra-thin 5G cell-phone battery cover - Google Patents
Ultra-thin 5G cell-phone battery cover Download PDFInfo
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- CN210061834U CN210061834U CN201920749166.1U CN201920749166U CN210061834U CN 210061834 U CN210061834 U CN 210061834U CN 201920749166 U CN201920749166 U CN 201920749166U CN 210061834 U CN210061834 U CN 210061834U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to the technical field of 5G mobile phone injection molding preparation, and discloses an ultrathin 5G mobile phone battery cover, which comprises a battery cover body, wherein the battery cover body is obtained by a PC material through a plurality of glue injection ports according to segmented delayed glue injection molding, the battery cover body is in a shape of a fillet rectangle slice, and the thickness of the battery cover body is 0.6-0.65 mm; the edge of the battery cover body close to one side of the outer surface is provided with a first cambered surface; the edge of the battery cover body close to one side of the inner surface is connected with an auxiliary glue inlet layer which is removed by subsequent CNC (computer numerical control) machining, and a plurality of glue injection ports are respectively arranged on the edge of the auxiliary glue inlet layer. The utility model discloses a plurality of mouth of penetrating are moulded plastics, realize carrying out the multiple spot segmentation through time sequence controller and penetrate gluey to ordinary injection molding machine, every is penetrated opening and closing time difference of mouth of gluing, penetrates gluey volume also different, and the thickness of the ultra-thin 5G mobile phone batteries lid of making reaches 0.6 ~ 0.65mm, and used material and equipment cost are low, and the production input is less.
Description
Technical Field
The utility model relates to a 5G cell-phone injection molding preparation technical field, concretely relates to is an ultra-thin 5G cell-phone battery cover.
Background
With the coming of the 5G era, the demetallization trend of mobile phone battery covers is increasingly obvious, and plastic battery covers become new research hotspots again, and particularly, the battery covers made of PC or PC/PMMA composite materials are paid attention. Compared with glass and ceramic battery covers, the plastic battery cover has the advantage of low manufacturing cost, and is particularly suitable for being applied to middle and low-end 5G mobile phones. In order to further reduce the attenuation of 5G electromagnetic wave signals by the plastic battery cover, it is necessary to manufacture a thinner plastic battery cover, which requires technical modification of the conventional injection molding process. In the injection molding process, the change behavior of the polymer material is very complex, and the dimensional accuracy, the density uniformity, the surface roughness, the optical performance and the molding cycle of the product are all related to the mold filling flow and the heat transfer in the molding process. The mobile restriction of plastic material flows, when adopting single gluey mouth of advancing to produce cell-phone battery lid in traditional moulding plastics, normal mould shaping can't satisfy the packing of large area and thin wall thickness, needs the wall thickness can not be less than 0.8mm, otherwise, the injection molding is very easily produced the starving phenomenon, as shown in figure 1, adopt the battery cover body that ordinary resin material injection moulding obtained, it can produce starving portion 13 easily keeping away from to penetrate gluey mouth 1 one side for the product becomes the waste product, indirectly improves enterprise manufacturing cost.
In the prior art, a popular ultra-thin scheme is an icm (international compression molding) scheme, which adopts a common single-point glue injection process, and requires high-cost novel equipment and high-flow materials to meet production:
A. the injection molding machine with high injection speed is needed, most of the injection molding injection speed in the current mobile phone industry is below 300mm/s, the injection molding machine with the injection speed of more than 500mm/s is required by the process, the equipment is expensive, for example, 180 ton SE180EV-A-C360LGP injection molding machine of Sumitomo company, the cost of a single equipment is up to 120 million RMB.
B. The PC material with good fluidity and high price is needed, such as KH3310UR of Mitsubishi corporation, the price of the PC material is as high as 220 yuan/kg, the purchasing condition is harsh, the time period of resin purchasing is long, and the PC material is not beneficial to large-scale stock preparation and production of enterprises.
Because the ICM scheme has high material cost and high equipment cost, the application of the ICM scheme in the mobile phone part preparation industry is limited, if a common PC material is adopted, the thickness of a plastic part is more than 0.8mm, and a single-point glue injection cannot fill a mold cavity, so that glue shortage is caused. Therefore, it is an urgent need in the industry to overcome the technical barrier in terms of plastic molding thickness at a low cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an ultra-thin 5G mobile phone batteries lid, its main aim at adopts a plurality of glue inlets to advance gluey, utilize time sequence controller control injection process parameter and penetrate gluey battery cover body that comes the shaping to obtain thickness for 0.6 ~ 0.65mm according to the segmentation time delay, realized obtaining the thinner plastic part of injection moulding thickness under lower cost drops into, thereby solved above-mentioned traditional injection moulding process and easily appeared scarce gluey phenomenon and the high technical problem of cost input in preparing thin wall plastic part.
In order to realize the purpose, the utility model adopts the technical scheme that:
an ultrathin 5G mobile phone battery cover comprises a battery cover body which is formed by a PC material through a plurality of glue injection ports according to segmented delayed glue injection, wherein the battery cover body is in a round-corner rectangular sheet shape, and the thickness of the battery cover body is 0.6-0.65 mm; the edge of one side, close to the outer surface, of the battery cover body is provided with a first cambered surface; the edge of one side, close to the inner surface, of the battery cover body is connected with an auxiliary glue inlet layer which is removed by subsequent CNC (computer numerical control) machining, and the plurality of glue injection ports are respectively formed in the edge of the auxiliary glue inlet layer.
As the utility model discloses technical scheme's further improvement, battery cover body is equipped with the concave position that is used for CNC machine-shaping finger hole. The concave position is formed during injection molding, so that the fingerprint hole is formed during subsequent CNC machining.
As a further improvement of the technical scheme of the utility model, the concave position is being close to be equipped with the second cambered surface on the edge of the surface one side of battery cover body. So set up, have 2.5D cambered surface effect for fingerprint hole department possesses the advantage that feels good, visual effect is good.
As a further improvement of the technical proposal of the utility model, the surface of the auxiliary adhesive layer is provided with a plurality of convex ribs. So set up, can play the buffering effect at the in-process of moulding plastics.
As a further improvement, the utility model discloses technical scheme, supplementary advance the locating hole that the glue film was equipped with a plurality of CNC processing. So set up, follow-up CNC adds man-hour of being convenient for, treats that the machined part can accurate positioning.
As the utility model discloses technical scheme's further improvement, the diameter of locating hole is 2 ~ 8 mm. Specifically, the auxiliary locating hole diameter of advancing the glue film left and right sides is 3mm, and the locating hole diameter at top is 7mm, so, battery cover body can fix a position more firmly and carry out CNC processing on the CNC processing machine.
As a further improvement of the technical proposal of the utility model, the PC material is emery 4330E50-9 polycarbonate of TRINSEO Shengxi ao company. The acquisition cost of emery 4330E50-9 polycarbonate is only 70 yuan/kg, the material cost is far lower than the high price PC of Mitsubishi KH3310UR used in the popular ultra-thin version ICM.
As a technical scheme of the utility model further improve, battery cover body still includes the camera hole that is formed by CNC processing, the camera hole is being close to be equipped with the third cambered surface on the edge of the surface one side of battery cover body. Due to the arrangement, the camera is convenient to install and expose; and the third cambered surface is arranged, so that the visual effect is improved.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the PC material has good shock resistance and good flexibility, the hardness can reach 1H, the influence of the ultrathin 5G mobile phone battery cover made of the PC material on the 5G antenna of the mobile phone is small, and the high-frequency electromagnetic wave attenuation is reduced; in addition, the PC material can be sprayed, the prepared mobile phone battery cover is not required to be protected or decorated by a film on the surface, and the price is cheaper compared with that of a battery cover made of glass, ceramic and the like.
2. The edge of the battery cover body close to one side of the outer surface is provided with the first cambered surface, so that the periphery of the ultrathin 5G mobile phone battery cover has a 2.5D cambered surface effect, and the battery cover has the advantages of good hand feeling, collision prevention and good visual effect.
3. A plurality of glue injection ports are adopted for glue injection molding, so that the product does not lack glue;
4. the utility model discloses a time sequence controller realizes carrying out multiple spot segmentation time delay to ordinary injection molding machine and penetrates gluey, and every is penetrated opening and closing time of gluing the mouth different, penetrates gluey volume and also differs, and the thickness of the ultra-thin 5G mobile phone battery lid of making reaches 0.6 ~ 0.65mm to can solve weld line stress mark problem, yellowing problem and rainbow line problem, preparation the utility model discloses the used material cost of ultra-thin 5G mobile phone battery lid is low, equipment cost is low, and the production input is less.
Drawings
FIG. 1 is a schematic structural view of a battery cover body formed by a single glue inlet in a conventional injection molding process;
fig. 2 is a schematic structural view of the battery cover body obtained by injection molding according to the present invention;
FIG. 3 is a top view of the battery cover body;
fig. 4 is a schematic structural diagram of an ultra-thin 5G mobile phone battery cover obtained by CNC processing of the battery cover body of the present invention;
fig. 5 is a top view of an ultra-thin 5G mobile phone battery cover.
Reference numerals: 1. injecting glue; 2. a battery cover body; 3. a first arc surface; 4. auxiliary glue feeding layer; 5. a fingerprint hole; 6. a concave position; 7. a second arc surface; 8. a rib is protruded; 9. positioning holes; 10. a camera hole; 11. a third cambered surface; 12. spraying coating 13 and glue-lacking part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to fig. 2 to 5, an ultrathin 5G mobile phone battery cover in one embodiment is shown, and includes a battery cover body 2 formed by a PC material through four glue injection ports 1 by means of segmented delayed glue injection molding, wherein the battery cover body 2 is in a shape of a rounded rectangular sheet and has a thickness of 0.6 to 0.65 mm; the edge of one side, close to the outer surface, of the battery cover body 2 is provided with a first cambered surface 3; the edge of one side, close to the inner surface, of the battery cover body 2 is connected with an auxiliary glue inlet layer 4 which is removed by subsequent CNC (computer numerical control) machining, and the four glue injection ports 1 are respectively arranged on the edge of the auxiliary glue inlet layer 4.
The PC material is emery 4330E50-9 polycarbonate of TRINSEO Shengxi ao company. The acquisition cost of emery 4330E50-9 polycarbonate is only 70 yuan/kg, the material cost is far lower than the high price PC of Mitsubishi KH3310UR used in the popular ultra-thin version ICM.
The battery cover body 2 is provided with a concave position 6 for CNC machining of the fingerprint hole 5. The concave position is formed during injection molding, so that the fingerprint hole is formed during subsequent CNC machining. The edge of the concave position 6 close to one side of the outer surface of the battery cover body 2 is provided with a second cambered surface 7. So set up, have 2.5D cambered surface effect for fingerprint hole department possesses the advantage that feels good, visual effect is good.
The surface of the auxiliary adhesive inlet layer 4 is provided with a plurality of convex ribs 8, so that a buffering effect can be achieved in the injection molding process.
For the convenience of follow-up CNC adds man-hour, treat that the machined part can accurate positioning, supplementary advance glue film 4 and be equipped with the locating hole 9 of a plurality of CNC processing, the diameter of locating hole 9 is 2 ~ 8 mm. Specifically, the auxiliary locating hole diameter of advancing the glue film left and right sides is 3mm, and the locating hole diameter at top is 7mm, so, battery cover body can fix a position more firmly and carry out CNC processing on the CNC processing machine.
In other embodiments, the battery cover body 2 further includes a camera hole 10 formed by CNC machining, and the camera hole 10 is provided with a third arc surface 11 on an edge of a side close to the outer surface of the battery cover body 2. Due to the arrangement, the camera is convenient to install and expose; and the third cambered surface is arranged, so that the visual effect is improved.
In the injection molding process, the glue feeding time and the glue injection amount of four glue injection ports of a hot runner system in a common 150-ton injection machine are controlled through a time sequence controller, and a PC material is subjected to injection molding to obtain a battery cover body with the thickness of 0.6-0.65 mm; then, machining the battery cover body into a fingerprint hole and a camera hole through a CNC (computer numerical control) machine, and removing the auxiliary adhesive layer through CNC machining to obtain the ultrathin 5G mobile phone battery cover; and finally, spraying a spraying layer 12 with colors or patterns on the outer surface of the ultrathin 5G mobile phone battery cover.
The time sequence controller is used for controlling the injection molding time sequence of the hot nozzle of the mold when a needle valve type hot runner system is used. The time sequence controller comprises a loop and a glue injection signal switch which are electrically connected with a glue inlet valve of a glue injection port of the hot runner multi-glue-inlet mold. The glue injection signal switch is controlled to be closed and opened by the glue injection signal; two time relays connected in series are arranged on the loop, namely a normally closed first time relay and a normally open second time relay. When the glue injection signal switch is closed, the coil of the time relay is electrified to start timing. The time sequence controller controls the delayed opening and the advanced opening of the glue inlet valve by utilizing the serial connection of the delayed opening and the delayed closing contact of the universal time relay, wherein the delayed closing contact is used for controlling the delayed opening of the glue inlet valve, and the delayed opening contact closes the glue inlet valve of the mold in advance before the glue injection signal of the injection molding machine is not finished, so that the glue inlet time can be selected according to the wall thickness difference of different parts of a product. The selected time sequence controller is a commercial product, and has simple structure and convenient use and maintenance.
The utility model discloses a plurality of mouthful and the mould of penetrating of controlling hot runner are penetrated and are glued the time when moulding plastics, realize the segmentation time delay and penetrate gluey technology, penetrate gluey time difference and the volume of advancing of mouthful through adjustment each, increase the die cavity that fills up of multiple spot glue filling volume, realize the proportional adjustment of the stream length/wall thickness of the part of moulding plastics, reduce locking die power and injection pressure, reduce the material internal stress, reach and improve the quality, in case the phenomenon that the product flaw appears or the product is filled not in place takes place.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the PC material has good shock resistance and good flexibility, the hardness can reach 1H, the influence of the ultrathin 5G mobile phone battery cover made of the PC material on the 5G antenna of the mobile phone is small, and the high-frequency electromagnetic wave attenuation is reduced; in addition, the PC material can be sprayed, the prepared mobile phone battery cover is not required to be protected or decorated by a film on the surface, and the price is cheaper compared with that of a battery cover made of glass, ceramic and the like.
2. The edge of the battery cover body close to one side of the outer surface is provided with the first cambered surface, so that the periphery of the ultrathin 5G mobile phone battery cover has a 2.5D cambered surface effect, and the battery cover has the advantages of good hand feeling, collision prevention and good visual effect.
3. A plurality of glue injection ports are adopted for glue injection molding, so that the product does not lack glue;
4. the utility model discloses a time sequence controller realizes carrying out multiple spot segmentation time delay to ordinary injection molding machine and penetrates gluey, and every is penetrated opening and closing time of gluing the mouth different, penetrates gluey volume and also differs, and the thickness of the ultra-thin 5G mobile phone battery lid of making reaches 0.6 ~ 0.65mm to can solve weld line stress mark problem, yellowing problem and rainbow line problem, preparation the utility model discloses the used material cost of ultra-thin 5G mobile phone battery lid is low, equipment cost is low, and the production input is less.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (8)
1. The utility model provides an ultra-thin 5G cell-phone battery lid which characterized in that: the battery cover body is formed by PC materials through a plurality of glue injection ports according to segmented delayed glue injection, is in a round-corner rectangular sheet shape, and has a thickness of 0.6-0.65 mm; the edge of one side, close to the outer surface, of the battery cover body is provided with a first cambered surface; the edge of one side, close to the inner surface, of the battery cover body is connected with an auxiliary glue inlet layer which is removed by subsequent CNC (computer numerical control) machining, and the plurality of glue injection ports are respectively formed in the edge of the auxiliary glue inlet layer.
2. The ultra-thin 5G mobile phone battery cover of claim 1, characterized in that: the battery cover body is provided with a concave position for CNC machining and forming of the fingerprint hole.
3. The ultra-thin 5G mobile phone battery cover of claim 2, characterized in that: the edge of the concave position close to one side of the outer surface of the battery cover body is provided with a second cambered surface.
4. The ultra-thin 5G mobile phone battery cover of claim 1, characterized in that: the surface of the auxiliary adhesive inlet layer is provided with a plurality of convex ribs.
5. The ultra-thin 5G mobile phone battery cover of claim 1, characterized in that: the auxiliary glue inlet layer is provided with a plurality of CNC machined positioning holes.
6. The ultra-thin 5G mobile phone battery cover of claim 5, characterized in that: the diameter of the positioning hole is 2-8 mm.
7. The ultra-thin 5G mobile phone battery cover of claim 1, characterized in that: the PC material is emery 4330E50-9 polycarbonate of TRINSEO Shengxi ao company.
8. The ultra-thin 5G mobile phone battery cover of claim 1, characterized in that: the battery cover body further comprises a camera hole formed by CNC machining, and a third cambered surface is arranged on the edge, close to one side of the outer surface of the battery cover body, of the camera hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920749166.1U CN210061834U (en) | 2019-05-23 | 2019-05-23 | Ultra-thin 5G cell-phone battery cover |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920749166.1U CN210061834U (en) | 2019-05-23 | 2019-05-23 | Ultra-thin 5G cell-phone battery cover |
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| CN210061834U true CN210061834U (en) | 2020-02-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039725A (en) * | 2019-05-23 | 2019-07-23 | 广东格林精密部件股份有限公司 | A kind of ultra-thin 5G mobile phone battery cover and its manufacturing process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039725A (en) * | 2019-05-23 | 2019-07-23 | 广东格林精密部件股份有限公司 | A kind of ultra-thin 5G mobile phone battery cover and its manufacturing process |
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