CN110792773A - In-film injection gear display device - Google Patents
In-film injection gear display device Download PDFInfo
- Publication number
- CN110792773A CN110792773A CN201911019521.0A CN201911019521A CN110792773A CN 110792773 A CN110792773 A CN 110792773A CN 201911019521 A CN201911019521 A CN 201911019521A CN 110792773 A CN110792773 A CN 110792773A
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- China
- Prior art keywords
- light
- guide plate
- film
- light guide
- box body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention relates to an in-film injection gear display device which is arranged on an auxiliary instrument panel; comprises a hardening film, a light display sheet, a circuit board and a light box body; after the hardened film and the light display piece are molded together, the hardened film and the light display piece are arranged in the light box body in an integral injection molding mode; the circuit board and the light display piece are arranged in the light box body; and a light guide plate is arranged between the circuit board and the light display sheet. The invention takes the hardening film as an insert, and the hardening film is put into a mould for injection molding, and the hardening film is clung to the back of the light display piece and forms a whole with the light display piece. Then the whole of the hardened film and the light display piece is used as an insert and placed into a mold for secondary injection molding, and the light box assembly is formed by the hardened film and the light display piece and the light box body. The injection molding process is adopted, no gap exists, and damage to the circuit board caused by infiltration of beverage and rainwater can be effectively prevented. The invention adopts the LED lamp and the light guide plate, and the light uniformly lights the light display sheet through the light guide plate, thereby having simple structure and low cost.
Description
Technical Field
The invention relates to a gear display device, in particular to an in-film injection molding gear display device which adopts an injection molding process, has no any gap, can effectively prevent a circuit board from being damaged due to infiltration of beverage and rainwater, uniformly lights a light display sheet by light through a light guide plate, and has simple structure and low cost.
Background
With the growth of the automobile industry and the increasing requirements of Chinese people on automobile interior trim and environment, the traditional plastic surface treatment technology can not meet the requirements of users gradually, and IMD (in-mold decoration) film injection molding is carried out in such an environment and is gradually growing.
On the current automobile gear shifting mechanism, the PRND appearance shows that what adopted basically is radium carving after the plastics surface sprays paint, or surface ink printing, and these two kinds of modes are relative IMD technology, and efficiency is lower, and the quality stability is also relatively poor, and also do not be favorable to some high temperature subsequent processing, say twice injection moulding again, and current appearance treatment mode does not have the solution of this problem, and IMD technology can accomplish.
The existing gear display mechanism comprises a gear panel, a gear display piece, a PCB and 4 LED lamps arranged on the PCB; when the LED lamp works, 4 LED lamps are required to work simultaneously to light the whole gear display piece (P, R, N, D).
Disclosure of Invention
In view of the above problems, a primary object of the present invention is to provide an in-mold injection gear display device, which employs an injection molding process, has no gap, can effectively prevent damage to a circuit board caused by infiltration of beverages and rainwater, and has a simple structure and low cost, and a light display sheet is uniformly illuminated by light through a light guide plate.
The invention solves the technical problems through the following technical scheme: an in-film injection gear display device is arranged on an auxiliary instrument panel; the gear display device that moulds plastics in membrane includes: the lamp box comprises a hardening film, a lamp light display sheet, a circuit board and a lamp light box body;
after the hardened film and the light display piece are molded together, the hardened film and the light display piece are arranged in the light box body in an integral injection molding mode; the hardening film is a hardening film printed with patterns on the surface close to the light box body;
the circuit board and the light display piece are arranged in the light box body; and a light guide plate is arranged between the circuit board and the light display sheet.
In a specific implementation example of the present invention, the light guide plate is disposed directly below the gear position of the gear position display piece, one end of the light guide plate extends outward to form a curved portion, the thickness of the curved portion is greater than the thickness of the light guide plate, the outer surface of the curved portion is an arc surface, and the bottom surface of the curved portion is a horizontal plane; and an LED lamp is arranged under the bottom surface of the bending part and is arranged on the PCB.
In a specific implementation example of the invention, the light box body is provided with a positioning hole and a bolt mounting hole, the positioning hole and the bolt mounting hole are matched with a hole on the auxiliary instrument board for use, and the light box body is mounted on the auxiliary instrument board by adopting a bolt;
the light box body is matched with a sealing cover, and a single-sided adhesive tape, a light guide plate, a support and a circuit board are arranged in the light box body; when the LED lamp is installed, the single-sided adhesive tape, the light guide plate, the support and the circuit board are sequentially installed from the light display sheet to the sealing cover.
In a specific embodiment of the present invention, the thickness of the hardened film is in the range of 0.25 to 0.30 mm; the thickness range of the light display piece is as follows: 2.4-2.8 mm; the thickness of the light guide plate is 2.0-3.0 mm.
In an embodiment of the present invention, the hardened film is a hardened film of a PC material.
In a specific embodiment of the present invention, the light display sheet is made of an acrylic material.
In a specific embodiment of the invention, the light box body is matched with the sealing cover, and the single-sided adhesive tape, the light guide plate, the support and the circuit board are arranged in the light box body; when the LED lamp is installed, the single-sided adhesive tape, the light guide plate, the support and the circuit board are sequentially installed from the light display sheet to the sealing cover.
In a specific embodiment of the present invention, one end of the light guide plate extends outward to form a curved portion, the thickness of the curved portion is greater than the thickness of the light guide plate, the outer surface of the curved portion is an arc surface, and the bottom surface of the curved portion is a horizontal surface; an LED lamp is arranged right below the bottom surface of the bent part, the LED lamp is installed on the PCB, and the radius of the bent part is 3-5 m; the light guide plate and the bending part are of an integrated structure.
In an embodiment of the present invention, the light guide plate and the bending part are made of a transparent PC material.
In an embodiment of the present invention, white reflective paper is disposed on the bottom surface and the side surface of the light guide plate.
The positive progress effects of the invention are as follows: according to the in-film injection molding gear display device provided by the invention, the hardened film is taken as an insert and placed in a mold for injection molding, and the hardened film is tightly attached to the back of the light display piece and forms a whole with the light display piece. Then the whole of the hardened film and the light display piece is used as an insert and placed into a mold for secondary injection molding, and the light box assembly is formed by the hardened film and the light display piece and the light box body. The injection molding process is adopted, and the traditional double-sided adhesive tape is not adopted for fixation, so that the light box assembly is integrated, no gap exists, and damage to the circuit board caused by infiltration of beverage and rainwater can be effectively prevented.
According to the invention, the original four LED lamp lighting gear display pieces are replaced by one LED lamp and one light guide plate, and the light uniformly lights the light display pieces through the light guide plate, so that the LED lamp lighting gear display piece structure is simple and the cost is low.
Drawings
Fig. 1 is a schematic structural view of the hardened film of the present invention after printing a pattern on the surface thereof.
FIG. 2 is a schematic structural view of the hardened film and the light display sheet of the present invention injection molded together.
Fig. 3 is a perspective view illustrating a structure of a light box body according to the present invention.
Fig. 4 is a schematic structural diagram after the assembly of the present invention is completed.
Fig. 5 is a schematic structural view of the components mounted in the light box body according to the present invention.
FIG. 6 is a schematic view of another light guide plate according to the present invention.
Detailed Description
The following provides a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a hardened film in the present invention, fig. 2 is a schematic structural view of a light display sheet in the present invention, fig. 3 is a perspective view of a schematic structural view of a light box body in the present invention, and as shown in fig. 1 to 3, an in-film injection molding shift position display device provided by the present invention includes: the lamp box comprises a hardening film 1, a lamp light display sheet 2, a circuit board 306 and a lamp light box body 3; after the hardened film and the light display piece are molded together, the hardened film and the light display piece are arranged in the light box body in an integral injection molding mode; the hardening film is a hardening film 1 with printed patterns on the surface close to the light box body; the circuit board 306 and the light display sheet are arranged in the light box body; a light guide plate is installed between the circuit board 306 and the lamp display sheet.
Fig. 5 is a schematic structural view of the components mounted in the light box body according to the present invention. FIG. 6 is a schematic view of another light guide plate according to the present invention. As shown in fig. 5 and 6: the light guide plate 304 in the present invention may have two forms: in fig. 5, the light box body 3 is provided with a positioning hole 301 and a bolt mounting hole 302, the positioning hole 301 and the bolt mounting hole 302 are used in cooperation with a hole on the sub-dashboard, and the light box body 3 is mounted on the sub-dashboard by using a bolt. The light box body 3 is matched with the sealing cover 4, and the single-sided adhesive tape 303, the light guide plate 304, the support 305 and the circuit board 306 are arranged in the light box body 3; when mounting, the single-sided tape 303, the light guide plate 304, the holder 305, and the circuit board 306 are sequentially mounted from the light display sheet 2 to the sealing cover 4. In fig. 6, the light guide plate is disposed right below the gear of the gear display piece, one end of the light guide plate extends outward to form a curved portion, the thickness of the curved portion is greater than that of the light guide plate, the outer surface of the curved portion is an arc surface, and the bottom surface of the curved portion is a horizontal plane; an LED lamp 307 is arranged right below the bottom surface of the bending part, and the LED lamp 307 is installed on the PCB 306. One end of the light guide plate 304 extends outwards to form a bending part 50, the thickness of the bending part 50 is larger than that of the light guide plate 304, the outer surface of the bending part is an arc surface, and the bottom surface 52 of the bending part 50 is a horizontal plane; an LED lamp 307 is arranged right below the bottom surface 52 of the bending part, the LED lamp 307 is arranged on the PCB306, and the radius of the bending part is 3-5 m; the light guide plate and the bending part are of an integrated structure.
The light box body 3 is provided with a positioning hole 301 and a bolt mounting hole 302, the positioning hole 301 and the bolt mounting hole 302 are matched with a hole on the auxiliary instrument board for use, and the light box body 3 is mounted on the auxiliary instrument board by adopting a bolt.
The light box body 3 is matched with the sealing cover 4, and the single-sided adhesive tape 303, the light guide plate 304, the support 305 and the circuit board 306 are arranged in the light box body 3; when mounting, the single-sided tape 303, the light guide plate 304, the holder 305, and the circuit board 306 are sequentially mounted from the light display sheet 2 to the sealing cover 4.
The thickness range of the hardening film is 0.25-0.30 mm; the thickness range of the light display piece is as follows: 2.4-2.8 mm; the thickness of the light guide plate is 2.0-3.0 mm.
In a specific implementation, the hardened film is generally selected to be a hardened film of a PC material.
In a specific implementation process, the light display sheet is made of an acrylic material.
The light box body is matched with a sealing cover, and a single-sided adhesive tape, a light guide plate, a support and a circuit board are arranged in the light box body; when the LED lamp is installed, the single-sided adhesive tape, the light guide plate, the support and the circuit board are sequentially installed from the light display sheet to the sealing cover.
The light guide plate and the bending part are made of a transparent PC material. White reflective paper (not shown) is disposed on the bottom and side surfaces of the light guide plate.
Fig. 4 is a schematic structural diagram after the assembly of the present invention is completed. The surface of the hardening film is printed with PRNDM symbols by adopting a printing process, and then the printing is hardened by adopting special glue, so that the printing is prevented from being damaged in the subsequent processing process. And placing the hardened film as an insert into a mold for injection molding to form the lamplight display piece, wherein the hardened film is tightly attached to the back of the lamplight display piece and forms a whole with the lamplight display piece. And then the light display piece is used as an insert and placed in a mould for secondary injection molding, and the light display piece and the light box body form a light box assembly.
The thickness of the hardened film in the invention is 0.25-0.30mm, preferably 0.30 mm; the thickness range of the light display piece is as follows: 2.4-2.8 mm; preferably 2.5 mm.
The hardened film in the invention is selected from a hardened film made of a PC material, and the light display sheet 2 in the invention is a light display sheet made of an acrylic material.
The injection molding process comprises the following steps:
1. and (3) placing the hardened film and the printed characters downwards into a mold, closing the mold, injecting an acrylic material into the mold cavity, maintaining the pressure for 15 seconds, and performing injection molding to form the display piece.
2. And (3) cutting off the gate of the display piece just after injection molding by using hot shearing to prevent the gate from being cut after the display piece is cooled to cause cracking of the intersection surface.
3. And (3) placing the display piece into a light box mold, enabling the font to face downwards, closing the mold, injecting a PC material into the mold, maintaining the pressure for 25 seconds, and performing injection molding to form a light box assembly.
In some places with higher requirements on waterproof performance, 2-time injection molding is needed, and only plastic parts processed by the IMD (in-mold decoration) film injection molding process can bear the high temperature of 2-time injection molding. The problems that the traditional spray painting laser carving and printing quality are unstable and lamplight display is not uniform are also greatly improved by IMD (in-mold decoration) intramembrane injection molding.
And placing the hardened film as an insert into a mold for injection molding, wherein the hardened film is tightly attached to the back of the light display piece and forms a whole with the light display piece. Then the whole of the hardened film and the light display piece is used as an insert and placed into a mold for secondary injection molding, and the light box assembly is formed by the hardened film and the light display piece and the light box body.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. An in-film injection gear display device is arranged on an auxiliary instrument panel; the method is characterized in that: the gear display device that moulds plastics in membrane includes: the lamp box comprises a hardening film, a lamp light display sheet, a circuit board and a lamp light box body;
after the hardened film and the light display piece are molded together, the hardened film and the light display piece are arranged in the light box body in an integral injection molding mode; the hardening film is a hardening film printed with patterns on the surface close to the light box body;
the circuit board and the light display piece are arranged in the light box body; and a light guide plate is arranged between the circuit board and the light display sheet.
2. The in-film injection molding gear position display device according to claim 1, wherein the light guide plate is arranged right below a gear position of the gear position display piece, one end of the light guide plate extends outwards to form a bent portion, the thickness of the bent portion is larger than that of the light guide plate, the outer surface of the bent portion is an arc surface, and the bottom surface of the bent portion is a horizontal plane; and an LED lamp is arranged under the bottom surface of the bending part and is arranged on the PCB.
3. The in-film injection gear display device according to claim 1, wherein the light box body is provided with a positioning hole and a bolt mounting hole, the positioning hole and the bolt mounting hole are matched with a hole in an auxiliary instrument board, and the light box body is mounted on the auxiliary instrument board by using a bolt;
the light box body is matched with a sealing cover, and a single-sided adhesive tape, a light guide plate, a support and a circuit board are arranged in the light box body; when the LED lamp is installed, the single-sided adhesive tape, the light guide plate, the support and the circuit board are sequentially installed from the light display sheet to the sealing cover.
4. The in-film injection gear position display device according to claim 1, wherein: the thickness range of the hardened film is 0.25-0.30 mm; the thickness range of the light display piece is as follows: 2.4-2.8 mm; the thickness of the light guide plate is 2.0-3.0 mm.
5. The in-film injection gear position display device according to claim 1, wherein: the hardened film is a hardened film of a PC material.
6. The in-film injection gear position display device according to claim 1, wherein: the light display piece is made of acrylic materials.
7. The in-film injection gear position display device according to claim 1, wherein: the light box body is matched with a sealing cover, and a single-sided adhesive tape, a light guide plate, a support and a circuit board are arranged in the light box body; when the LED lamp is installed, the single-sided adhesive tape, the light guide plate, the support and the circuit board are sequentially installed from the light display sheet to the sealing cover.
8. The in-film injection gear position display device according to claim 1, wherein: one end of the light guide plate extends outwards to form a bent part, the thickness of the bent part is greater than that of the light guide plate, the outer surface of the bent part is an arc surface, and the bottom surface of the bent part is a horizontal plane; an LED lamp is arranged right below the bottom surface of the bent part, the LED lamp is installed on the PCB, and the radius of the bent part is 3-5 m; the light guide plate and the bending part are of an integrated structure.
9. The in-film injection gear position display device according to claim 1, wherein: the light guide plate and the bending part are both made of transparent PC material.
10. The in-film injection gear position display device according to claim 1, wherein: white reflective paper is arranged on the bottom surface and the side surface of the light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911019521.0A CN110792773A (en) | 2019-10-24 | 2019-10-24 | In-film injection gear display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911019521.0A CN110792773A (en) | 2019-10-24 | 2019-10-24 | In-film injection gear display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110792773A true CN110792773A (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911019521.0A Pending CN110792773A (en) | 2019-10-24 | 2019-10-24 | In-film injection gear display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110792773A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111653216A (en) * | 2020-04-30 | 2020-09-11 | 惠州市德赛西威汽车电子股份有限公司 | Simple structure's polychrome character display structure and control system thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011185995A (en) * | 2010-03-04 | 2011-09-22 | Denso Corp | Display device |
| KR101499222B1 (en) * | 2014-02-25 | 2015-03-05 | 현대자동차주식회사 | Button type electronic automatic transmission lever and control method thereof |
| CN205881388U (en) * | 2016-07-25 | 2017-01-11 | 德韧干巷汽车系统（上海）有限公司 | Gear indication mechanism |
| CN206377254U (en) * | 2017-01-04 | 2017-08-04 | 华伟表面处理技术（上海）有限公司 | A kind of automobile gear integrated panel with voice gear reporting function |
| CN209141282U (en) * | 2018-09-28 | 2019-07-23 | 德韧干巷汽车系统（上海）有限公司 | Injection moulded components in a kind of film |
-
2019
- 2019-10-24 CN CN201911019521.0A patent/CN110792773A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011185995A (en) * | 2010-03-04 | 2011-09-22 | Denso Corp | Display device |
| KR101499222B1 (en) * | 2014-02-25 | 2015-03-05 | 현대자동차주식회사 | Button type electronic automatic transmission lever and control method thereof |
| CN205881388U (en) * | 2016-07-25 | 2017-01-11 | 德韧干巷汽车系统（上海）有限公司 | Gear indication mechanism |
| CN206377254U (en) * | 2017-01-04 | 2017-08-04 | 华伟表面处理技术（上海）有限公司 | A kind of automobile gear integrated panel with voice gear reporting function |
| CN209141282U (en) * | 2018-09-28 | 2019-07-23 | 德韧干巷汽车系统（上海）有限公司 | Injection moulded components in a kind of film |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111653216A (en) * | 2020-04-30 | 2020-09-11 | 惠州市德赛西威汽车电子股份有限公司 | Simple structure's polychrome character display structure and control system thereof |
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Application publication date: 20200214 |
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| RJ01 | Rejection of invention patent application after publication |