Split type touch control structure

Abstract

The utility model relates to a split type touch control structure, which comprises a face shell, a light-transmitting shell, a touch control circuit board and a plastic rear cover, the face shell is provided with a touch control hollow hole, the back of the face shell is provided with a first check ring, a second check ring and N screw connecting pipes, the front of the light-transmitting shell is provided with a touch control boss and a third check ring, the touch control boss is inserted into the touch control hollow hole, and the third check ring is inserted into the touch control hollow hole. The third check ring is inserted between the first check ring and the second check ring, N installation lug blocks are arranged on the outer side of the light-transmitting shell and connected with the screw connecting pipe through self-tapping screws, the touch control circuit board is installed in the light-transmitting shell through screws, and the plastic rear cover is installed on the back face of the light-transmitting shell and connected with the light-transmitting shell in a buckled mode. The touch module has the advantages that the face shell and the light-transmitting shell of the touch module are designed in a split mode, the face shell and the light-transmitting shell are made of different materials, dependence on high-cost PC materials can be reduced, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an automobile parts technical field especially relates to a split type touch structure. BACKGROUND

[0002] At present in the automobile market, the face shell and the light-transmitting shell of the touch module usually adopt integrated technology, and the common scheme is as follows:

[0003] I. PC light-transmitting material integrated scheme, that is, the face shell and the light-transmitting shell are made of PC light-transmitting material integration. The problems of this scheme are: PC is a brittle material, easy to break, and the integrated maintenance cost is high; PC material is expensive, the larger the face shell volume is, the higher the cost is, which cannot meet the demand of reducing cost in the current automobile market.

[0004] II. Double-color injection molding process, that is, the light-transmitting shell is made of PC light-transmitting material, and the face shell is made of PP or ABS and other ductile materials by using double-color injection mold integration. The problems of this scheme are: the cost of double-color injection mold is high, the mold precision requirement is very high, the design cycle is long, and the maintenance difficulty is complex; due to the different material properties, such as slow cooling time of PC, high heat resistance of PC and other problems, double-color injection molding is prone to high scrap rate. INVENTION CONTENTS

[0005] The utility model aims at overcoming the above problems existing in the prior art, and provides a split type touch structure.

[0006] In order to realize the above technical purpose and achieve the above technical effect, the utility model realizes by the following technical scheme:

[0007] A split type touch structure, comprising a face shell, a light-transmitting shell, a touch circuit board and a plastic back cover, a touch hollow hole is formed in the face shell, a first stop ring is arranged on the back of the face shell, a second stop ring is arranged along the edge of the touch hollow hole, N screw connection pipes are arranged, a touch boss and a third stop ring are arranged on the front of the light-transmitting shell, the touch boss is inserted into the touch hollow hole, the third stop ring is inserted between the first stop ring and the second stop ring, N mounting lug blocks corresponding to the screw connection pipes are arranged on the outside of the light-transmitting shell, the mounting lug blocks are connected with the screw connection pipes by self-tapping screws, the touch circuit board is installed in the light-transmitting shell by screws, the plastic back cover is installed on the back of the light-transmitting shell, and the plastic back cover is connected with the light-transmitting shell by buckling.

[0008] Among them, the first stop ring, the second stop ring, the third stop ring, the touch hollow hole and the touch boss are all rounded rectangles.

[0009] The back surface of the second blocking ring is provided with a plurality of reference grooves, the front surface of the light-transmitting shell is provided with reference bosses corresponding to the reference grooves around the touch boss, and the reference bosses and the reference grooves are matched without sticking.

[0010] The front surface of the third blocking ring is provided with a plurality of positioning grooves, and the back surface of the face shell is provided with positioning bosses corresponding to the positioning grooves along the inner side of the first blocking ring, and the positioning bosses and the positioning grooves are gap matched.

[0011] The front surface of the mounting lug block and the back surface of the screw connecting pipe are reserved with a 0.1mm gap.

[0012] The spacing between the short side of the first blocking ring and the short side of the adjacent second blocking ring is greater than the thickness of the short side of the third blocking ring by 0.15mm, and the spacing between the upper long side of the first blocking ring and the upper long side of the second blocking ring is greater than the thickness of the upper long side of the third blocking ring by 0.25mm.

[0013] The light-transmitting shell is provided with a first sound hole combination, and the face shell is provided with a second sound hole combination between the first blocking ring and the second blocking ring, and the second sound hole combination is in communication with the first sound hole combination.

[0014] The face shell and the light-transmitting shell of the touch module are designed in a split type, the face shell and the light-transmitting shell can be produced by using different materials, the dependence on high-cost PC materials is reduced, and the production cost is reduced. The light-transmitting shell is mounted on the back surface of the face shell by using self-tapping screws, assembly is facilitated, and separate maintenance in the later period is facilitated. The split design avoids the problems of mold complexity and performance difference, and greatly reduces the waste rate. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the schematic embodiments and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0016] Fig. 1 is a structure schematic view of the face shell back surface in the split type touch control structure in the utility model;

[0017] Fig. 2 is a structure schematic view of the face shell back surface in the split type touch control structure in the utility model;

[0018] Fig. 3 is a structure schematic view of the face shell back surface in the split type touch control structure in the utility model;

[0019] Explanation of reference signs in the figure: face shell 1, touch hollow hole 11, first stop ring 12, second stop ring 13, screw connecting pipe 14, reference groove 15, positioning boss 16, second sound hole combination 17, light-transmitting shell 2, touch boss 21, third stop ring 22, mounting lug 23, reference boss 24, positioning groove 25, first sound hole combination 26, touch circuit board 3, plastic back cover 4, self-tapping screw 5. DETAILED DESCRIPTION

[0020] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0021] As Figs. 1 to 3 shown, a split touch structure includes face shell 1, light-transmitting shell 2, touch circuit board 3, plastic back cover 4, the back of face shell 1 is provided with N screw connecting pipes 14, the outer side of light-transmitting shell 2 is provided with N mounting lugs 23 corresponding to screw connecting pipes 14 one by one, mounting lugs 23 are connected with screw connecting pipes 14 by self-tapping screw 5, touch circuit board 3 is installed in light-transmitting shell 2 by screw, plastic back cover 4 is installed on the back of light-transmitting shell 2, and plastic back cover 4 is snap connected with light-transmitting shell 2. And, 0.1mm gap is reserved between the front of mounting lug 23 and the back of screw connecting pipe 14 to prevent light-transmitting shell from over positioning in Y direction when light-transmitting shell is installed.

[0022] A circular-rectangular touch hollow hole 11 is formed in face shell 1, the back of face shell 1 is provided with a circular-rectangular first stop ring 12 and a circular-rectangular second stop ring 13 arranged along the edge of touch hollow hole 11, the front of light-transmitting shell 2 is provided with a circular-rectangular touch boss 21 and a circular-rectangular third stop ring 22, touch boss 21 is inserted into touch hollow hole 11, and third stop ring 22 is inserted between first stop ring 12 and second stop ring 13.

[0023] In order to position in Y direction when transparent shell is installed, the back of second stop ring 13 is provided with a plurality of reference grooves 15, the front of light-transmitting shell 2 is provided with reference bosses 24 corresponding to reference grooves 15 around touch boss 21, and reference bosses 24 are matched with reference grooves 15. If it is detected by a gauge that there is a surface difference between light-transmitting shell and face shell in Y direction in actual assembly process, the Y direction height of reference boss can be adjusted to solve the surface difference problem.

[0024] In order to limit the movement of the light-transmitting shell in the X and Z directions during installation, the front surface of the third retaining ring 22 is provided with a plurality of positioning grooves 25, and the back surface of the face shell 1 is provided with a plurality of positioning protrusions 16 corresponding to the positioning grooves 25 along the inner side of the first retaining ring 12. The positioning protrusions 16 and the positioning grooves 25 are in clearance fit, and the clearance is 0.1 mm. If the gap spacing is not uniform during actual assembly, the Z / X direction spacing between the positioning protrusions 16 and the positioning grooves 25 can be adjusted to solve the problem of uniform gap spacing.

[0025] The spacing between the short edges of the first retaining ring 12 and the adjacent second retaining ring 13 is 0.15 mm greater than the thickness of the short edge of the third retaining ring 22, and the spacing between the upper long edges of the first retaining ring 12 and the second retaining ring 13 is 0.25 mm greater than the thickness of the upper long edge of the third retaining ring 22, to prevent the light-transmitting shell from being over-positioned in the Z / X direction during installation.

[0026] The light-transmitting shell 2 is provided with a first sound hole combination 26, and the face shell 1 is provided with a second sound hole combination 17 between the first retaining ring 12 and the second retaining ring 13, which is in communication with the first sound hole combination 26.

[0027] The split touch structure separates the face shell and the light-transmitting shell of the touch module:

[0028] 1. Reduce manufacturing cost: Compared with traditional integrated technology, the face shell and the light-transmitting shell can be produced with different materials, which greatly reduces the dependence on high-cost PC materials and significantly reduces production cost.

[0029] 2. Improve maintenance convenience: The split structure allows the face shell and the light-transmitting shell to be independently disassembled, simplifying subsequent maintenance operations and reducing maintenance time and cost.

[0030] 3. Improve assembly precision and reliability: Properly setting the reference grooves and reference protrusions improves assembly precision, assembly stability, and product quality.

[0031] 4. Meet performance requirements: The split design avoids the fragility that may be caused by integrated structure, improves impact resistance and durability, and adapts to more complex use environments.

[0032] 5. Reduce scrap rate: The split design avoids the complexity of the mold and the performance difference problem, greatly reducing the scrap rate.

[0033] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A split-type touch structure, characterized in that: It includes face shell, light-transmitting shell, touch control circuit board, plastic back cover, the face shell is provided with touch control hollow hole, the back of the face shell is provided with first stop ring, second stop ring arranged along the edge of touch control hollow hole, N screw connection pipe, the front of the light-transmitting shell is provided with touch control boss and third stop ring, the touch control boss is inserted into touch control hollow hole, the third stop ring is inserted between the first stop ring and the second stop ring, the outside of the light-transmitting shell is provided with N mounting lug block corresponding to the screw connection pipe, the mounting lug block is connected with the screw connection pipe by self-tapping screw, the touch control circuit board is installed in the light-transmitting shell by screw, the plastic back cover is installed on the back of the light-transmitting shell, and the plastic back cover is buckled with the light-transmitting shell.

2. The split touch structure according to claim 1, wherein: The first stop ring, the second stop ring, the third stop ring, the touch control hollow hole and the touch control boss are all rounded rectangles.

3. The split touch structure according to claim 1, wherein: The back of the second stop ring is provided with a plurality of reference grooves, the front of the light-transmitting shell is provided with reference bosses corresponding to the reference grooves around the touch control boss, and the reference bosses and the reference grooves are matched.

4. The split touch structure according to claim 1, wherein: The front of the third stop ring is provided with a plurality of positioning grooves, and the back of the face shell is provided with positioning bosses corresponding to the positioning grooves along the inner side of the first stop ring, and the positioning bosses and the positioning grooves are gap matched.

5. The split touch structure according to claim 1, wherein: A 0.1mm gap is reserved between the front of the mounting lug block and the back of the screw connection pipe. 6.The split touch structure according to claim 1, wherein: The spacing between the short side of the first stop ring and the short side of the adjacent second stop ring is 0.15mm larger than the thickness of the short side of the third stop ring, and the spacing between the upper long side of the first stop ring and the upper long side of the second stop ring is 0.25mm larger than the thickness of the upper long side of the third stop ring.

7. The split touch structure according to claim 1, wherein: The light-transmitting shell is provided with a first sound hole combination, and the face shell is provided with a second sound hole combination between the first stop ring and the second stop ring, and the second sound hole combination is communicated with the first sound hole combination.

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