3C product injection molding cover plate
By introducing cross-structured copper rods and graphene heat dissipation films into the back cover of the phone, the problems of thin and easily damaged back covers and poor heat dissipation are solved, thereby improving drop resistance and heat dissipation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-20
AI Technical Summary
The existing injection-molded plastic back covers for mobile phones are thin, easily damaged, and have poor heat dissipation, resulting in poor performance.
Design a 3C product injection molded cover plate, which adopts a cross structure of horizontal and vertical bars made of copper material, combined with graphene heat dissipation film and silicone material to form an internal solid structure and heat absorption component, thereby enhancing the overall strength and improving heat dissipation efficiency.
It improves the phone's drop resistance and lifespan, while also reducing the phone's temperature through distributed heat dissipation, preventing heat buildup and enhancing the user experience.
Smart Images

Figure CN224021756U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to 3C product technical field especially relates to a 3C product injection molding cover plate. BACKGROUND
[0002] The current 3C product is mainly the combination of computer, communication and consumer electronic product, and the current common and commonly used mobile phone product also belongs to one kind of 3C product, and the current mobile phone product has various shapes, and the back cover of mobile phone has glass material, plastic material and the like, and the back cover of plastic material is basically manufactured through injection molding.
[0003] The thickness of the injection molding plastic back cover of the current mobile phone is relatively thin, and it is easy to break without falling, and the current general mobile phone has very poor heat dissipation effect, and the whole is hot after continuous use, and the heat dissipation effect of the injection molding cover plate of the mobile phone is poor, so that the use effect is poor, and therefore, the utility model provides a kind of 3C product injection molding cover plate to solve this problem. INVENTION CONTENTS
[0004] The utility model aims at solving the shortcomings in the prior art, and provides a kind of 3C product injection molding cover plate to solve this problem.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] Design a kind of 3C product injection molding cover plate, including injection molding bottom layer, the upper end of the injection molding bottom layer is provided with injection molding inner layer, the injection molding bottom layer and injection molding inner layer are provided with inner fixed mechanism, the upper end of the injection molding inner layer is provided with heat absorption assembly;
[0007] The injection molding bottom layer includes back cover plate, the upper end of the back cover plate is provided with bottom groove, the upper end of the bottom groove is provided with a plurality of groups of first horizontal groove and first vertical groove, each first horizontal groove and first vertical groove are cross-communicated with each other;
[0008] The inner fixed mechanism includes horizontal rod and vertical rod multiple groups, the lower end of the horizontal rod is mounted in the inner cavity of first horizontal groove, the lower end of the vertical rod is mounted in the inner cavity of first vertical groove, and the vertical rod and horizontal rod are integrally connected.
[0009] Preferably, the injection molding inner layer includes inner plate mounted in the inner cavity of bottom groove, the lower end of the inner plate is provided with a plurality of groups of second horizontal groove and second vertical groove, each second horizontal groove and second vertical groove are cross-communicated with each other, the upper end of the horizontal rod is mounted in the inner cavity of second horizontal groove, and the upper end of the vertical rod is mounted in the inner cavity of second vertical groove.
[0010] Preferably, the intersection between the first horizontal groove and the first vertical groove and the intersection between the second horizontal groove and the second vertical groove are respectively provided with a first insertion slot and a second insertion slot, and the upper and lower ends of the horizontal rod are connected with a plurality of insertion columns, and the insertion columns at the upper and lower ends of the horizontal rod are respectively inserted into the first insertion slot and the second insertion slot.
[0011] Preferably, the heat absorption assembly comprises a heat absorption layer attached to the upper end of the inner plate and the rear cover plate, the upper end of the inner plate is provided with a groove, the lower end of the heat absorption layer is attached with a filling layer, and the filling layer is installed in the inner cavity of the groove.
[0012] Preferably, the heat absorption layer is a graphene heat dissipation film, and the filling layer is made of silica gel material.
[0013] Preferably, the horizontal rod, the vertical rod and the insertion column are all made of copper material.
[0014] Preferably, the lower end of the inner plate is integrally connected with a clamping column around the periphery, the outer side of the clamping column is integrally connected with a limiting block at equal intervals, the inner cavity of the bottom groove is provided with a clamping groove around the periphery of the bottom end, and the inner cavity of the clamping groove is provided with a limiting slot for clamping the limiting block.
[0015] The 3C product injection molding cover plate has the beneficial effects that:
[0016] 1. The plurality of groups of horizontal rods and vertical rods are arranged between the first horizontal groove and the first vertical groove and between the second horizontal groove and the second vertical groove, and the insertion columns at the two ends of the plurality of groups of horizontal rods and vertical rods are respectively clamped into the first insertion slot and the second insertion slot, thereby effectively increasing the overall strength of the inner plate and the rear cover plate, effectively improving the drop resistance effect, thereby prolonging the service life, and the clamping column at the lower end of the inner plate is inserted into the clamping groove in the inner cavity of the bottom groove, and the limiting block on the outer side of the clamping column is embedded in the limiting slot, thereby effectively improving the mounting and connecting strength between the inner plate and the rear cover plate and effectively improving the use effect.
[0017] 2. The graphene heat dissipation film heat absorption layer can quickly absorb and dissipate the heat generated by the mobile phone during operation, thereby quickly conducting the heat to the filling layer made of silica gel material, and the silica gel has strong heat dissipation effect, thereby further quickly dissipating the heat to the inner plate, avoiding the accumulation of heat in the mobile phone and the failure of heat dissipation, causing the mobile phone to overheat and affecting the service life of the mobile phone, and the inner plate transmits the heat to the plurality of groups of horizontal rods and vertical rods made of copper material, thereby facilitating the horizontal rods and vertical rods to dissipate the heat in a distributed manner and effectively improving the heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The utility model discloses a whole three-dimensional structure schematic diagram is provided for the utility model.
[0019] Figure 2 The whole split three-dimensional structure schematic diagram provided by the utility model;
[0020] Figure 3 The injection molding inner layer top view three-dimensional structure schematic diagram provided by the utility model;
[0021] Figure 4 The injection molding inner layer bottom view three-dimensional structure schematic diagram provided by the utility model;
[0022] Figure 5 The injection molding inner layer bottom view three-dimensional structure schematic diagram provided by the utility model; Figure 4 The A part of the injection molding inner layer bottom view three-dimensional structure schematic diagram provided by the utility model;
[0023] Figure 6 The injection molding inner layer bottom view three-dimensional structure schematic diagram provided by the utility model;
[0024] Figure 7 The injection molding inner layer bottom view three-dimensional structure schematic diagram provided by the utility model; Figure 6 The B part of the injection molding inner layer bottom view three-dimensional structure schematic diagram provided by the utility model;
[0025] Figure 8 The part inner fixing mechanism three-dimensional structure schematic diagram provided by the utility model.
[0026] In the drawing: injection molding bottom layer 1, back cover plate 11, bottom groove 12, first horizontal groove 13, first vertical groove 14, first insertion groove 15, clamping groove 16, limiting groove 17, inner fixing mechanism 2, horizontal rod 21, vertical rod 22, insertion column 23, injection molding inner layer 3, inner plate 31, recess 32, second horizontal groove 33, second vertical groove 34, clamping column 35, limiting block 36, second insertion groove 37, filling layer 4, heat absorbing layer 5. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0028] With reference to Figures 1-8 A 3C product injection molding cover plate, comprising injection molding bottom layer 1, the upper end of injection molding bottom layer 1 is provided with injection molding inner layer 3, injection molding bottom layer 1 comprises back cover plate 11, the upper end of back cover plate 11 is provided with bottom groove 12, the upper end of bottom groove 12 is provided with several groups of first horizontal groove 13 and first vertical groove 14, each first horizontal groove 13 and first vertical groove 14 are mutually crossed and communicated, inner fixing mechanism 2 is arranged between injection molding bottom layer 1 and injection molding inner layer 3, inner fixing mechanism 2 comprises several groups of horizontal rod 21 and vertical rod 22, the lower end of horizontal rod 21 is installed in the inner cavity of first horizontal groove 13, the lower end of vertical rod 22 is installed in the inner cavity of first vertical groove 14, and vertical rod 22 and horizontal rod 21 are integrally connected.
[0029] By opening the bottom groove 12 on the back cover plate 11, and installing several groups of horizontal rods 21 and vertical rods 22 in the first horizontal groove 13 and the first vertical groove 14 which are mutually crossed in the bottom groove 12, the overall strength of the back cover plate 11 is effectively increased, so that it is resistant to falling and has high strength.
[0030] The injection molded inner layer 3 includes an inner plate 31 installed in the inner cavity of the bottom groove 12, and the lower end of the inner plate 31 is provided with several groups of second horizontal grooves 33 and second vertical grooves 34 which are mutually crossed, the upper end of the horizontal rod 21 is installed in the inner cavity of the second horizontal groove 33, and the upper end of the vertical rod 22 is installed in the inner cavity of the second vertical groove 34, and the horizontal rod 21, the vertical rod 22 and the plug column 23 are all made of copper.
[0031] The intersection points between the first horizontal groove 13 and the first vertical groove 14 and the intersection points between the second horizontal groove 33 and the second vertical groove 34 are respectively provided with first insertion grooves 15 and second insertion grooves 37, the upper and lower ends of the horizontal rod 21 are both connected with several plug columns 23, and the plug columns 23 at the upper and lower ends of the horizontal rod 21 are respectively inserted into the first insertion groove 15 and the second insertion groove 37.
[0032] By inserting the plug columns 23 at the two end faces of the several groups of horizontal rods 21 and vertical rods 22 into the first insertion grooves 15 at the intersection points between the first horizontal groove 13 and the first vertical groove 14 and the second insertion grooves 37 at the intersection points between the second horizontal groove 33 and the second vertical groove 34, the several groups of horizontal rods 21 and vertical rods 22 are firmly clamped between the first horizontal groove 13 and the first vertical groove 14 and the second horizontal groove 33 and the second vertical groove 34, thereby increasing the overall strength of the inner plate 31 and the back cover plate 11 and effectively improving the service life, and the horizontal rod 21 and the vertical rod 22 made of copper can conduct heat to the several groups of horizontal rods 21 and vertical rods 22 when the mobile phone is used, so that the heat is dispersed by the several groups of horizontal rods 21 and vertical rods 22, thereby avoiding the accumulation of heat and the slow dissipation of heat, which leads to overheating and affects the use effect.
[0033] The lower end of the inner plate 31 is integrally connected with a clamping column 35, the outer side of the clamping column 35 is integrally connected with a limiting block 36 at equal intervals, the inner cavity of the bottom groove 12 is provided with a clamping groove 16 at the bottom end, and the inner cavity of the clamping groove 16 is provided with a limiting groove 17 at equal intervals.
[0034] By inserting the clamping column 35 at the lower end of the inner plate 31 into the clamping groove 16 in the inner cavity of the bottom groove 12 and embedding the limiting block 36 at the outer side of the clamping column 35 into the limiting groove 17, the installation and connection strength between the inner plate 31 and the back cover plate 11 during the later assembly is effectively improved, and the use effect is effectively improved.
[0035] The upper end of the injection molding inner layer 3 is provided with a heat absorption assembly, the heat absorption assembly comprises a heat absorption layer 5 bonded on the upper end of the inner plate 31 and the back cover plate 11, the upper end of the inner plate 31 is provided with a groove 32, the lower end of the heat absorption layer 5 is bonded with a filling layer 4, the filling layer 4 is installed in the inner cavity of the groove 32, the heat absorption layer 5 is a graphene heat dissipation film, and the filling layer 4 is made of silica gel material.
[0036] The graphene heat dissipation film heat absorption layer can quickly absorb and dissipate the heat generated during the operation of the mobile phone, so as to quickly conduct the heat to the filling layer 4 made of silica gel material, and the silica gel has a strong heat dissipation effect, so that the heat is further quickly dissipated to the inner plate 31, thereby avoiding the accumulation of heat in the mobile phone and the failure of heat dissipation, causing the mobile phone to heat up and affecting the service life of the mobile phone, and the inner plate 31 then transmits the heat to the dispersed groups of horizontal rods 21 and vertical rods 22, so that the groups of horizontal rods 21 and vertical rods 22 can disperse the heat, thereby effectively improving the heat dissipation effect.
[0037] Working principle: the inner plate 31 and the back cover plate 11 are assembled after injection molding, that is, the groups of horizontal rods 21 and vertical rods 22 are placed between the first horizontal groove 13 and the first vertical groove 14 in the inner cavity of the bottom groove 12 of the back cover plate 11, the insertion columns 23 at the lower ends of the groups of horizontal rods 21 and vertical rods 22 are inserted into the first insertion groove 15 designed at the intersection between the first horizontal groove 13 and the first vertical groove 14, then the lower end of the inner plate 31 is injected with glue, the inner plate 31 is installed in the inner cavity of the bottom groove 12, the upper ends of the groups of horizontal rods 21 and vertical rods 22 are clamped into the inner cavities of the second horizontal groove 33 and the second vertical groove 34, the insertion columns 23 at the upper ends of the groups of horizontal rods 21 and vertical rods 22 are inserted into the second insertion groove 37 designed at the intersection between the second horizontal groove 33 and the second vertical groove 34, and the overall strength of the inner plate 31 and the back cover plate 11 is increased, the drop resistance effect is effectively improved, and the service life is improved, the clamping column 35 at the lower end of the inner plate 31 is inserted into the clamping groove 16 in the inner cavity of the bottom groove 12, and the limiting block 36 outside the clamping column 35 is embedded into the limiting groove 17, so that the installation and connection strength between the inner plate 31 and the back cover plate 11 is effectively improved, the use effect is effectively improved, and when the mobile phone is used for heat dissipation, the graphene heat dissipation film heat absorption layer can quickly absorb and dissipate the heat generated during the operation of the mobile phone, so as to quickly conduct the heat to the filling layer 4 made of silica gel material, and the silica gel has a strong heat dissipation effect, so that the heat is further quickly dissipated to the inner plate 31, thereby avoiding the accumulation of heat in the mobile phone and the failure of heat dissipation, causing the mobile phone to heat up and affecting the service life of the mobile phone, and the inner plate 31 then transmits the heat to the dispersed groups of horizontal rods 21 and vertical rods 22, so that the groups of horizontal rods 21 and vertical rods 22 can disperse the heat, thereby effectively improving the heat dissipation effect.
[0038] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A 3C product injection molded cover plate, comprising an injection molded bottom layer (1), characterized in that, An injection-molded inner layer (3) is provided at the upper end of the injection-molded bottom layer (1), an internal fixing mechanism (2) is provided between the injection-molded bottom layer (1) and the injection-molded inner layer (3), and a heat-absorbing component is provided at the upper end of the injection-molded inner layer (3). The injection-molded bottom layer (1) includes a rear cover plate (11), and a bottom groove (12) is provided at the upper end of the rear cover plate (11). Several sets of first horizontal grooves (13) and first vertical grooves (14) are provided at the upper end of the bottom groove (12), and each first horizontal groove (13) and first vertical groove (14) is interconnected with each other. The internal fixing mechanism (2) includes multiple sets of horizontal bars (21) and vertical bars (22). The lower ends of the horizontal bars (21) are all installed in the inner cavity of the first horizontal groove (13), and the lower ends of the vertical bars (22) are all installed in the inner cavity of the first vertical groove (14). The vertical bars (22) and the horizontal bars (21) are integrally connected.
2. The injection-molded cover plate for 3C products according to claim 1, characterized in that, The injection-molded inner layer (3) includes an inner plate (31) installed in the inner cavity of the bottom groove (12). The lower end of the inner plate (31) is provided with several sets of second horizontal grooves (33) and second vertical grooves (34). Each second horizontal groove (33) and second vertical groove (34) is interconnected with each other. The upper end of each horizontal bar (21) is installed in the inner cavity of the second horizontal groove (33), and the upper end of each vertical bar (22) is installed in the inner cavity of the second vertical groove (34).
3. The injection-molded cover plate for 3C products according to claim 2, characterized in that, The first slot (15) and the second slot (37) are respectively provided at the intersection of the first horizontal slot (13) and the first vertical slot (14) and the intersection of the second horizontal slot (33) and the second vertical slot (34). The upper and lower ends of the crossbar (21) are connected to a number of inserts (23), and the inserts (23) at the upper and lower ends of the crossbar (21) are respectively inserted into the first slot (15) and the second slot (37).
4. The injection-molded cover plate for 3C products according to claim 2, characterized in that, The heat-absorbing assembly includes a heat-absorbing layer (5) bonded to the upper end of the inner plate (31) and the rear cover plate (11). The upper end of the inner plate (31) is provided with a groove (32), and the lower end of the heat-absorbing layer (5) is bonded with a filling layer (4). The filling layer (4) is installed in the inner cavity of the groove (32).
5. A 3C product injection molded cover plate according to claim 4, characterized in that, The heat-absorbing layer (5) is a graphene heat dissipation film, and the filling layer (4) is made of silicone material.
6. The injection-molded cover plate for 3C products according to claim 3, characterized in that, The horizontal bar (21), vertical bar (22), and insert (23) are all made of copper.
7. A 3C product injection molded cover plate according to claim 2, characterized in that, The lower end of the inner plate (31) is integrally connected with a locking post (35) around the perimeter. The outer side of the locking post (35) is integrally connected with a limiting block (36) at equal intervals. The bottom cavity of the bottom groove (12) is provided with a locking groove (16) around the perimeter that engages with the locking post (35). The inner cavity of the locking groove (16) is provided with a limiting groove (17) at equal intervals that engages with the limiting block (36).