LED (light-emitting diode) bracket for enhancing injection molding flowability
By designing the bent connecting sheet in the LED bracket to form a bent channel and step opening with the substrate metal sheet, the problems of traditional injection molding are solved, and the problems of high difficulty in injection molding and weak colloidal fluidity are achieved, achieving fuller injection molding and longer service life.
Patent Information
- Application Number
- CN202420495186.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-13
AI Technical Summary
The injection molding of traditional LED hardware brackets is difficult and the colloidal fluidity is weak, resulting in gaps in the plastic surface and incomplete injection molding, which is easy to introduce water vapor, affecting the normal operation of the product.
The bending connecting piece is designed to bending upwards, forming a channel with the substrate metal sheet to enhance injection molding fluidity, expand the channel diameter and volume, increase the step openings on both sides of the substrate metal sheet, and improve colloid fluidity.
Improves injection molding fluidity, ensures that the bracket is full and injection molding, extends service life and prevents water vapor from invasion.
Smart Images
Figure CN222146268U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of LED bracket manufacturing, in particular to an LED bracket with enhanced injection molding fluidity. [Background technology]
[0002] Currently on the market, traditional LED hardware brackets are flat. Since the brackets are extremely small and the metal sheet set inside the insulating shell is flat, injection molding is very difficult. The fluidity of the injected colloid is weak, resulting in gaps in the plastic on the surface of the metal sheet and incomplete injection molding. In severe cases, the bracket injection molding will be incomplete, and external water vapor can easily invade the internal circuit of the bracket, causing abnormal product operation. [Contents of the utility model]
[0003] In order to solve the above problems, the utility model proposes an LED bracket with enhanced injection molding fluidity, wherein the bent connecting piece is formed into an upwardly bent structure, and a channel for enhancing injection molding fluidity is formed between the bent connecting piece and the substrate metal sheet, thereby enhancing the injection molding fluidity of the bracket.
[0004] The utility model is realized by the following technical solutions:
[0005] An LED bracket for enhancing injection molding fluidity comprises an insulating shell, wherein a substrate metal sheet for placing a chip is arranged inside the insulating shell; a bent connecting sheet for connecting to a bracket pin is arranged on one side of the substrate metal sheet, and the bent connecting sheet protrudes from the plane of the substrate metal sheet so that a channel for enhancing injection molding fluidity is formed between the bent connecting sheet and the substrate metal sheet.
[0006] As described above, in an enhanced injection molding fluidity LED bracket, the bent connecting piece includes a first bent connecting piece that is attached to the inner wall of the insulating shell, a second bent connecting piece that protrudes vertically upward from the first bent connecting piece, and a third bent connecting piece that forms an outer channel with the substrate metal sheet.
[0007] In the above-mentioned enhanced injection molding fluidity LED bracket, the upper surface of the third bent connecting piece is parallel to the upper surface of the first bent connecting piece and the upper surface of the substrate metal sheet; the second bent connecting piece is configured as an arc-shaped surface that is conducive to the flow of colloid.
[0008] In the LED bracket with enhanced injection molding fluidity as described above, the channel includes a vertical channel and a horizontal channel for enhanced injection molding fluidity; the width of the vertical channel is 0.15mm to 0.21mm; the width of the horizontal channel is 0.7mm to 0.9mm.
[0009] In the above-mentioned enhanced injection molding fluidity LED bracket, the vertical height of the horizontal channel is 0.20 mm to 0.30 mm.
[0010] In the above-mentioned enhanced injection molding fluidity LED bracket, the height of the bent connecting piece after being bent upward is greater than the height of the substrate metal piece.
[0011] In the above-mentioned enhanced injection molding fluidity LED bracket, the upward bending height of the bent connecting piece is 0.05 mm to 0.09 mm.
[0012] In the above-mentioned enhanced injection molding fluidity LED bracket, the length of the upper surface of the substrate metal sheet is 1.05 mm to 1.45 mm.
[0013] In the above-mentioned enhanced injection molding fluidity LED bracket, the length of the bottom side of the horizontal channel accounts for 17% to 23% of the length of the bottom side of the insulating shell.
[0014] In the above-mentioned enhanced injection molding fluidity LED bracket, both ends of the substrate metal sheet are provided with step openings which are beneficial to the flow of colloid.
[0015] Compared with the prior art, the utility model has the following advantages:
[0016] The utility model proposes an LED bracket with enhanced injection molding fluidity, wherein the substrate metal sheets on both sides of the insulating shell are arranged to be bent upward, the two side surfaces of the substrate metal sheet located in the middle of the insulating shell are made into a step opening structure, the bent connecting sheet and the substrate metal sheet form a large-diameter channel which is more conducive to the flow of colloid during injection molding, and the height difference between the bent connecting sheet and the substrate metal sheet forms a flow channel which is conducive to the flow of colloid, making the injection molded bracket fuller and extending the service life of the bracket.
Brief Description of the Drawings
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.
[0018] Figure 1 It is a schematic diagram of the top view structure of the utility model;
[0019] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;
[0020] Figure 3 It is a schematic cross-sectional structure diagram of the prior art of the utility model. [Specific implementation method]
[0021] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0022] Specific embodiments, such as Figures 1 to 3 The LED bracket for enhancing injection molding fluidity shown in the figure includes an insulating shell 1, in which a substrate metal sheet 22 for placing a chip is arranged; one side of the substrate metal sheet 22 is provided with a bent connecting sheet 21 for connecting to the bracket pin, and the bent connecting sheet 21 protrudes from the plane of the substrate metal sheet 22 so that a channel 3 for enhancing injection molding fluidity is formed between the bent connecting sheet 21 and the substrate metal sheet 22.
[0023] Furthermore, as a preferred implementation mode of the present invention but not a limitation, the bent connecting piece 21 includes a first bent connecting piece 211 adhered to the inner wall of the insulating shell 1, a second bent connecting piece 212 protruding vertically upward from the first bent connecting piece 211, and a third bent connecting piece 213 forming an outer channel 32 with the substrate metal sheet 22.
[0024] In this embodiment, the bent connecting pieces on both sides of the insulating shell are made into a curved structure to facilitate the flow of the colloid, and a channel is formed between the bent connecting piece and the substrate metal sheet to enhance the injection molding fluidity. The optimal bending height of the bent connecting piece is 0.07.
[0025] Furthermore, as a preferred implementation of the present solution but not a limitation, the upper surface of the third bent connecting piece 213 is parallel to the upper surface of the first bent connecting piece 211 and the upper surface of the substrate metal sheet 22; the second bent connecting piece 212 is configured as an arc-shaped surface 23 that is conducive to the flow of colloid.
[0026] In this embodiment, the setting of the arc surface is helpful for the colloid to flow.
[0027] Furthermore, as a preferred embodiment of the present solution but not a limitation, the channel 3 includes a vertical channel 31 and a horizontal channel 32 for enhancing injection fluidity; the width of the vertical channel 31 is 0.15 mm to 0.21 mm; the width of the horizontal channel 32 is 0.7 mm to 0.9 mm.
[0028] In this implementation case, compared with the prior art channel 6A, the optimum width of the vertical channel is 0.07, and the optimum width of the horizontal channel is 0.8. This solution enlarges the channel diameter and significantly improves the injection molding fluidity of the bracket.
[0029] Furthermore, as a preferred implementation of the present solution but not a limitation, the vertical height of the horizontal channel 32 is 0.20 mm to 0.30 mm.
[0030] In this implementation case, compared with the prior art 32A, the vertical height of the horizontal channel is 0.25 mm. The vertical height of the horizontal channel of this solution is enlarged to improve the injection molding fluidity of the bracket.
[0031] Furthermore, as a preferred implementation manner of the present solution but not a limitation, the height of the bent connecting piece 21 after being bent upward is greater than the height of the substrate metal piece 22 .
[0032] In this implementation case, a height difference is formed between the bent connecting sheet and the substrate metal sheet, which is beneficial to the flow of the colloid.
[0033] Furthermore, as a preferred implementation manner of the present solution but not a limitation, the upward bending height of the bent connecting piece 21 is 0.05 mm to 0.09 mm.
[0034] In this embodiment, the optimum height of the bend is 0.07 mm.
[0035] Furthermore, as a preferred implementation of the present solution but not limiting, the length of the upper surface of the substrate metal sheet 22 is 1.05 mm to 1.45 mm.
[0036] In this embodiment, the optimum width of the substrate metal sheet is 1.20 mm.
[0037] Furthermore, as a preferred implementation manner of the present solution but not a limitation, the length of the bottom side of the horizontal channel 32 accounts for 17% to 23% of the length of the bottom side of the insulating housing 1 .
[0038] In this implementation case, compared with the prior art 32A, this solution increases the length of the bottom side of the horizontal channel, which is beneficial to the circulation of the colloid.
[0039] Furthermore, as a preferred implementation of the present solution but not limiting, both ends of the substrate metal sheet 22 are provided with stepped openings 7 which are beneficial to the flow of colloid.
[0040] In this embodiment, the setting of the step opening is helpful for the colloid to flow.
[0041] The working principle of the utility model is as follows:
[0042] The bent connecting pieces on both sides of the insulating shell are made into arc-shaped surfaces, the inner channel diameter between the substrate metal sheet and the bent connecting piece is increased, the length and height of the outer channel are expanded, the volume of the outer channel is expanded, and more colloids are accommodated. At the same time, step structures are made on both sides of the substrate metal sheet to enhance the injection molding fluidity of the bracket; the substrate metal sheet is injection-molded more fully to effectively prevent water vapor intrusion.
[0043] The above is an implementation method provided in combination with specific content, and it is not considered that the specific implementation of the utility model is limited to these descriptions. At the same time, due to different industry names, it is not limited to the above names, nor is it limited to English names. Any method, structure, etc. similar to or identical to the method, structure, etc. of the utility model, or a number of technical deductions or replacements made on the premise of the concept of the utility model, shall be regarded as the protection scope of the utility model.
Claims
1. An enhanced injection molding fluidity LED bracket, characterized in that: The invention comprises an insulating shell (1), wherein a substrate metal sheet (22) for placing a chip is arranged inside the insulating shell (1); a bent connecting sheet (21) for connecting to a bracket pin is arranged on one side of the substrate metal sheet (22); the bent connecting sheet (21) protrudes from the plane of the substrate metal sheet (22) so that a channel (3) for enhancing injection molding fluidity is formed between the bent connecting sheet (21) and the substrate metal sheet (22).
2. The enhanced injection molding fluidity LED bracket according to claim 1, characterized in that: The bent connecting piece (21) comprises a first bent connecting piece (211) affixed to the inner wall of the insulating housing (1), a second bent connecting piece (212) protruding vertically upward from the first bent connecting piece (211), and a third bent connecting piece (213) forming an outer channel (32) with the base metal sheet (22).
3. The enhanced injection molding fluidity LED bracket according to claim 2, characterized in that: The upper surface of the third bent connecting piece (213) is parallel to the upper surface of the first bent connecting piece (211) and the upper surface of the base metal sheet (22); and the second bent connecting piece (212) is configured as an arc-shaped curved surface (23) that is conducive to the flow of colloid.
4. The enhanced injection molding fluidity LED bracket according to claim 1, characterized in that: The channel (3) comprises an inner channel (31) and an outer channel (32) for enhancing injection molding fluidity; the width of the inner channel (31) is 0.15 mm to 0.21 mm; and the width of the outer channel (32) is 0.7 mm to 0.9 mm.
5. The enhanced injection molding fluidity LED bracket according to claim 4, characterized in that: The vertical height of the outer channel (32) is 0.20 mm to 0.30 mm.
6. The enhanced injection molding fluidity LED bracket according to claim 1, characterized in that: The height of the bent connecting sheet (21) after being bent upward is greater than the height of the base metal sheet (22).
7. The enhanced injection molding fluidity LED bracket according to claim 6, characterized in that: The height of the upward bending of the bent connecting piece (21) is 0.05 mm to 0.09 mm.
8. The enhanced injection molding fluidity LED bracket according to claim 1, characterized in that: The length of the upper surface of the substrate metal sheet (22) is 1.05 mm to 1.45 mm.
9. The enhanced injection molding fluidity LED bracket according to claim 5, characterized in that: The length of the bottom side of the outer channel (32) accounts for 17% to 23% of the length of the bottom side of the insulating shell (1).
10. The enhanced injection molding fluidity LED bracket according to claim 1, characterized in that: Both ends of the substrate metal sheet (22) are provided with step openings (7) that are conducive to the flow of colloid.