Touch screen assembly structure

Abstract

The utility model discloses a touch screen assembly structure which comprises an IC chip, a plurality of ejector pins, a main board and an installation shell, the IC chip is located beside a touch screen and located on a first face of the installation shell, the IC chip is electrically connected with the touch screen, the main board is located on a second face of the installation shell, and the ejector pins are located on the first face of the installation shell. The first face and the second face are the top face and the bottom face of the installation shell respectively, the ejector pin penetrates through the installation shell to abut against the IC chip and the mainboard respectively, and the IC chip is electrically connected with the mainboard through the ejector pin. According to the utility model, intercommunication between the IC chip and the main board is realized by arranging the ejector pin on the mounting shell, one end of the ejector pin abuts against the IC chip, and the other end of the ejector pin abuts against the main board, so that the IC chip is electrically connected with the main board through the ejector pin, and the IC chip does not need to be perforated and inserted into the connector reversely; the touch screen can be assembled without punching on the main board, so that the adaptability of assembling the touch screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of touch screen assembly, in particular to a touch screen assembly structure. Background Art

[0002] With the development of IT technology, various mobile portable devices, such as tablet computers and other electronic products are also developing continuously, and more and more visual electronic devices are using the process of laminating touch screens and LCD screens.

[0003] The touch screen of the prior art has four screws on the back. When assembling, the screws must be tightened first and then the touch screen is mounted. Conventional touch screen connection methods: zero insertion force connector (ZIF) and board-to-board connector (BTB) are to mount the touch screen first, punch the IC chip part first, and then press it onto the connector (such as Figure 1 、 Figure 2 ), but this assembly method cannot adapt to the assembly of all touch screens. Utility Model Content

[0004] The main purpose of the utility model is to provide a touch screen assembly structure, which is intended to be suitable for assembling different touch screens.

[0005] To achieve the above objectives, the present invention proposes a touch screen assembly structure, comprising an IC chip, a plurality of ejector pins, a mainboard, and a mounting shell. The IC chip is located next to the touch screen and on a first surface of the mounting shell, and is electrically connected to the touch screen. The mainboard is located on a second surface of the mounting shell, and the first and second surfaces are the top and bottom surfaces of the mounting shell, respectively. The ejector pins pass through the mounting shell and abut against the IC chip and the mainboard, respectively, and the IC chip is electrically connected to the mainboard via the ejector pins.

[0006] In one embodiment, the mainboard is provided with contact surfaces corresponding to the number of the ejector pins, and the IC chip is provided with contact feeding points corresponding to the number of the ejector pins. One end of the ejector pin abuts against the contact feeding point, and the other end of the ejector pin abuts against the contact surface.

[0007] In one embodiment, the mounting shell is provided with a mounting hole, and part of the ejector pins are located in the mounting hole.

[0008] In one embodiment, the ejector pin is integrally formed.

[0009] In one embodiment, the widths of the first contact portion and the second contact portion of the ejector pin are smaller than the width of the ejector pin located in the mounting hole.

[0010] In one embodiment, the ejector pin is provided with a limiting portion, the limiting portion abuts against the mounting shell, and the limiting portion clamps a portion of the ejector pin in the mounting hole.

[0011] In one embodiment, the width of the limiting portion is greater than the width of the mounting hole.

[0012] The utility model realizes the mutual communication between the IC chip and the main board by arranging a ejector pin on the mounting shell. One end of the ejector pin abuts against the IC chip, and the other end of the ejector pin abuts against the main board, so that the IC chip is electrically connected to the main board through the ejector pin. It is unnecessary to pierce the IC chip and insert it into the connector in reverse, and it is unnecessary to punch holes in the main board to realize the assembly of the touch screen, thereby reducing the cost of assembling the whole machine and improving the adaptability of assembling the touch screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0014] Figure 1 This is an assembly diagram of the prior art;

[0015] Figure 2 It is an assembly diagram of another prior art;

[0016] Figure 3 Schematic diagram of the touch screen assembly structure;

[0017] Figure 4 Provide a cross-sectional view of the touch screen assembly structure;

[0018] Figure 5 This is a cross-sectional view of the mounting plate;

[0019] Figure 6 Schematic diagram of IC chip.

[0020] Description of Figure Numbers:

[0021] 1-fixing hole, 2-existing IC, 3-touch screen, 4-IC chip, 5-contact feeding point, 6-thrust pin, 61-limiting portion, 62-first contact portion, 63-second contact portion, 7-mounting shell, 71-mounting hole, 8-mainboard, 9-contact surface.

[0022] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] like Figure 3 and Figure 4 As shown, the present invention proposes a touch screen 3 assembly structure, including an IC chip 4, a plurality of ejector pins 6, a mainboard 8 and a mounting shell 7. The IC chip 4 is located next to the touch screen 3 and on the first surface of the mounting shell 7. The IC chip 4 is electrically connected to the touch screen 3. The mainboard 8 is located on the second surface of the mounting shell 7. The first surface and the second surface are the top surface and the bottom surface of the mounting shell 7, respectively. The ejector pins 6 pass through the mounting shell 7 and abut against the IC chip 4 and the mainboard 8, respectively. The IC chip 4 is electrically connected to the mainboard 8 through the ejector pins 6.

[0027] In the embodiment of the present utility model, Figure 4As shown, the assembly structure of the touch screen 3 is equipped with a pin 6 on the mounting shell 7 to realize the intercommunication between the IC chip 4 and the main board 8. One end of the pin 6 abuts against the IC chip 4, and the other end of the pin 6 abuts against the main board 8, so that the IC chip 4 is electrically connected to the main board 8 through the pin 6, and the assembly of the touch screen 3 can be realized without punching the IC chip 4 and inserting it into the connector in reverse, and without punching holes in the main board 8, thereby reducing the cost of assembling the whole machine and improving the adaptability of assembling the touch screen 3.

[0028] Placing IC chip 4 near touch screen 3 helps reduce interference during signal transmission. A shorter signal path reduces noise and signal attenuation, thereby improving touch screen 3's touch response accuracy and stability. Optimizing response time: Placing IC chip 4 close to touch screen 3 shortens data transmission time, increases touch screen 3's response speed, and reduces touch delay. Placing IC chip 4 close to touch screen 3 simplifies internal wiring design and reduces circuit complexity, thereby lowering production costs and assembly difficulty. Improving power efficiency: Shorter power lines reduce voltage drop and power consumption, improving the system's overall power efficiency and extending the device's battery life. Placing IC chip 4 close to touch screen 3 reduces heat transfer across the circuit board, facilitating more efficient heat management and dissipation, and preventing overheating. Enhancing anti-interference capabilities: The compact structural design helps mitigate the effects of external electromagnetic interference and improves the device's anti-interference capabilities. Improving assembly reliability: The simplified design and shorter connecting cables improve assembly reliability and reduce the risk of poor contact or breakage. These advantages collectively enhance the performance, stability, and service life of touch screen 3.

[0029] In the prior art, Figure 1 and Figure 2 As shown, the four screws on the back of the touch screen 3 of the prior art need to be fixed in holes 1 on the touch screen 3 for installation, and the touch screen 3 needs to be mounted first, the IC 2 part of the prior art needs to be perforated, and the product needs to be turned over and inserted and pressed onto the connector. However, this method is not suitable for all touch screen 3 assemblies. The present application adopts a touch screen 3 pin 6 contact method, which not only solves the problem of first screwing in the touch screen 3 and then installing the touch screen 3, but also makes the touch screen 3 more space-saving, more cost-effective, and easier to assemble.

[0030] like Figure 6As shown, the motherboard 8 is provided with a corresponding number of contact surfaces 9 as the ejector pins 6, and the IC chip 4 is provided with a corresponding number of contact feed points 5 as the ejector pins 6. One end of the ejector pin 6 abuts against the contact feed point 5, and the other end of the ejector pin 6 abuts against the contact surface 9. Six gold fingers are exposed on the contact surface 9 of the motherboard 8. Using six double-headed ejector pins 6 for conduction, the ejector pins 6 and the IC chip 4 can be directly assembled to achieve conduction, solving product assembly problems and effectively reducing the need for vias and connector insertion in assembling the motherboard 8, thereby reducing the assembly cost of the entire machine.

[0031] The touch screen 3 IC chip 4 and six contact feeding points 5 are designed at the bottom. The feeding point size can be designed to be 3*2.2MM. The design of the contact feeding point 5 can effectively prevent the ejector pin 6 from deviating and having poor contact, which may lead to reactive power. The contact feeding point 5 is used to conduct with the six ejector pins 6. The ejector pins 6 are installed into the mounting shell 7 and fit tightly. The six contact surfaces 9 of the mainboard 8 are in contact with the six ejector pins 6 for conduction, thereby achieving mutual conduction between the IC chip 4 and the mainboard 8.

[0032] The mounting shell 7 is provided with a mounting hole 71, and some of the ejector pins 6 are located in the mounting hole 71. The mounting hole 71 is used to precisely align the IC chip 4 and the main board 8 to ensure that they fit correctly during assembly. This is very important for maintaining the stability and functionality of the overall device. The ejector pins 6 can help to firmly fix the IC chip 4 and the main board 8 in the correct position to prevent deviation or movement during the assembly process. Support and stability: During the assembly process, the mounting holes 71 provide additional support force, making the components more stable when being fixed, thereby improving the assembly quality and the durability of the overall structure. By providing clear assembly reference points, the mounting holes 71 can help improve the accuracy of assembly and reduce problems caused by incorrect component alignment.

[0033] The ejector pin 6 is integrally formed, and the integrally formed ejector pin 6 can more stably support and position the components, reducing deviation during assembly. The integrally formed design can provide better mechanical strength and durability.

[0034] The width of the first contact portion 62 and the second contact portion 63 of the ejector pin 6 is smaller than the width of the ejector pin 6 located in the mounting hole 71. The first contact portion 62 and the second contact portion 63 are located at both ends of the ejector pin 6. The narrower design makes it easier for the ejector pin 6 to be inserted and aligned with the hole position, thereby improving positioning accuracy. The first contact portion 62 and the second contact portion 63 reduce friction with the hole wall of the mounting hole 71, reduce wear and resistance, and extend the service life of the ejector pin 6. This design makes it easier to insert the ejector pin 6 during the assembly process while ensuring its good stability during operation. The wider middle design can provide better support, ensuring that the ejector pin 6 can effectively withstand and transmit force during operation.

[0035] like Figure 5 As shown, the ejector pin 6 is provided with a limiting portion 61, which abuts against the mounting shell 7. The limiting portion 61 clamps part of the ejector pin 6 in the mounting hole 71. The limiting portion 61 can limit the insertion depth of the ejector pin 6 to prevent the ejector pin 6 from being over-inserted during the assembly process, thereby avoiding damage to other components; the limiting portion 61 helps ensure that the ejector pin 6 can be accurately positioned during the assembly process, thereby improving the assembly accuracy of the components; by limiting the insertion depth of the ejector pin 6, the limiting portion 61 can prevent the ejector pin 6 from exerting excessive pressure on the IC chip 4 or the mainboard 8 during operation, reducing the risk of equipment wear and damage; providing the limiting portion 61 can reduce the time for adjustment and inspection, thereby improving the efficiency of the assembly process; the limiting portion 61 can reduce the need for additional positioning devices, making the overall design more concise.

[0036] The width of the limiting portion 61 is greater than the width of the mounting hole 71 .

[0037] When the width of the limiting portion 61 is greater than the width of the mounting hole 71, it can ensure that the ejector pin 6 can be stably positioned in the hole during assembly to prevent displacement during operation; the limiting portion 61 with a larger width can disperse the pressure applied to the ejector pin 6, thereby reducing local wear and improving the durability of the entire component.

[0038] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by utilizing the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A touch screen assembly structure, characterized in that: The device comprises an IC chip, a plurality of ejector pins, a mainboard, and a mounting shell. The IC chip is located next to the touch screen and on the first surface of the mounting shell. The IC chip is electrically connected to the touch screen. The mainboard is located on the second surface of the mounting shell. The first surface and the second surface are the top surface and the bottom surface of the mounting shell, respectively. The ejector pins pass through the mounting shell and abut against the IC chip and the mainboard, respectively. The IC chip is electrically connected to the mainboard through the ejector pins.

2. The touch screen assembly structure according to claim 1, wherein: The mainboard is provided with contact surfaces corresponding to the number of the ejector pins, and the IC chip is provided with contact feeding points corresponding to the number of the ejector pins. One end of the ejector pin abuts against the contact feeding point, and the other end of the ejector pin abuts against the contact surface.

3. The touch screen assembly structure according to claim 1, wherein: The mounting shell is provided with a mounting hole, and some of the ejector pins are located in the mounting hole.

4. The touch screen assembly structure according to claim 1, wherein: The ejector pin is integrally formed.

5. The touch screen assembly structure according to claim 3, wherein: The widths of the first contact portion and the second contact portion of the ejector pin are smaller than the width of the ejector pin located in the mounting hole.

6. The touch screen assembly structure according to claim 3, wherein: The ejector pin is provided with a limiting portion, the limiting portion abuts against the mounting shell, and the limiting portion clamps a portion of the ejector pin in the mounting hole.

7. The touch screen assembly structure according to claim 6, wherein: The width of the limiting portion is greater than the width of the mounting hole.

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