Panel binding type capacitive touch screen

Abstract

The utility model relates to the technical field of electronic equipment, and discloses a panel binding type capacitive touch screen. The panel binding type capacitive touch screen comprises a capacitive touch screen body, a main board body, an outer frame, a flexible circuit board and a main board circuit board, the main board body is arranged on the capacitive touch screen body, the outer frame used for protection is arranged on the capacitive touch screen body, the flexible circuit board is connected to the capacitive touch screen body, and the main board circuit board is arranged on the main board body. The mainboard comprises a mainboard body, a mainboard circuit board is arranged on the mainboard body, the mainboard further comprises first guide frames, limiting rods and first elastic pieces, the two first guide frames are fixedly connected to the mainboard circuit board, the limiting rods are arranged on the first guide frames in a sliding mode, and the first elastic pieces are arranged on the limiting rods in a sleeving mode. By loosening the limiting rods, the first elastic pieces restore to the original shape, so that the limiting rods move towards the sides close to each other, the limiting rods clamp the flexible circuit board, and therefore the situation that normal use of the capacitive touch screen is affected due to loosening of the flexible circuit board is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment and discloses a panel-bound capacitive touch screen. Background Art

[0002] Capacitive touch screen is a touch screen technology, the core working principle of which is to use the capacitance change of human body to sense and control touch operation. Capacitive touch screen is usually composed of a glass screen and a transparent conductive layer, with a protective glass layer outside the conductive layer to form a double glass structure, which can effectively protect the conductive layer and internal sensors, and prevent the influence of external environmental factors on the screen.

[0003] The patent with the patent authorization publication number CN215181926U discloses a capacitive touch screen, including a touch screen body, wherein the touch screen body includes a screen protection layer, a conductive sensing layer, a transparent support layer and a bottom plate layer arranged in sequence from top to bottom. Although the elastic sealing layer provided in the above patent can improve the sealing effect of the connection between the touch screen body and the device, after the flexible circuit board is inserted into the opening on the limit frame, since the flexible circuit board is not fixed, the flexible circuit board is easy to become loose during long-term use and movement of the capacitive touch screen, thereby affecting the use of the capacitive touch screen.

[0004] Therefore, a panel-bound capacitive touch screen with a clamping function is needed. Utility Model Content

[0005] In order to overcome the disadvantage of the prior art that after the flexible circuit board is inserted into the opening on the limit frame, the flexible circuit board is not fixed, which may cause the flexible circuit board to loosen during long-term use and movement of the capacitive touch screen, thereby affecting the use of the capacitive touch screen, the utility model provides a panel-bound capacitive touch screen with a clamping function.

[0006] The utility model provides the following technical solutions: a panel-bound capacitive touch screen, comprising a capacitive touch screen body, a main board body, an outer frame, a flexible circuit board and a main board circuit board, wherein the main board body is arranged on the capacitive touch screen body, the outer frame for protection is arranged on the capacitive touch screen body, the flexible circuit board is connected to the capacitive touch screen body, the main board body is arranged on the main board circuit board, the flexible circuit board can be inserted into the main board circuit board, and further comprising a first guide frame, a limit rod and a first elastic member, two first guide frames are fixedly connected to the main board circuit board, the limit rod is slidably arranged on the first guide frame, and the first elastic member is sleeved on the limit rod.

[0007] Furthermore, it also includes a support seat, a clamping rod and a second elastic member. A plurality of support seats are installed on the outer frame. A clamping rod is rotatably arranged on the support seat, and the second elastic member is sleeved on the clamping rod.

[0008] Furthermore, it also includes a second guide frame, a limit plate, a positioning rod and a third elastic member. Multiple second guide frames are installed on the outer frame, the clamping rod is provided with a limit plate, the second guide frame is slidably provided with a positioning rod, and two third elastic members are sleeved on the positioning rod.

[0009] Furthermore, it also includes a mounting shell, a heat dissipation fan, a first air guide hood and a second air guide hood. The mounting shell is arranged on the main board circuit board, the heat dissipation fan is installed inside the mounting shell, the first air guide hood is arranged on the rear side of the mounting shell, the second air guide hood is installed on the outer frame, and the second air guide hood is connected to the first air guide hood.

[0010] Furthermore, it also includes a dustproof net, and the second air guide cover is embedded with a dustproof net.

[0011] Furthermore, it also includes a sponge pad, which is arranged inside the outer frame.

[0012] Compared with the prior art, the utility model provides a panel-bound capacitive touch screen, which has the following beneficial effects: 1. By loosening the limit rod, the first elastic member returns to its original state so that the limit rod moves toward the side close to each other, so that the limit rod clamps the flexible circuit board, thereby preventing the flexible circuit board from loosening and affecting the normal use of the capacitive touch screen.

[0013] 2. By loosening the clamping rod, the second elastic member returns to its original shape, causing the clamping rod to rotate inwards and contact the mainboard body, thereby causing the clamping rod to limit the mainboard body, thereby fixing the mainboard body on the outer frame.

[0014] 3. Move the limiting plate outward along the inclined surface on the positioning rod so that the positioning rod passes into the limiting plate and fixes the clamping rod, thereby preventing the clamping rod from being reset and affecting the maintenance during maintenance.

[0015] 4. The heat is sucked out by running the heat dissipation fan, and then blown to the surface of the capacitive touch screen body through the first air guide cover and the second air guide cover, thereby cleaning the dust and other impurities attached to the surface of the capacitive touch screen body, thereby achieving the purpose of heat dissipation and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the capacitive touch screen body, the main board body and the outer frame of the utility model.

[0018] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the mainboard body, the flexible circuit board and the mainboard circuit board of the utility model.

[0019] Figure 4It is a three-dimensional cross-sectional structural schematic diagram of the main board circuit board, the first guide frame and the limiting rod of the utility model.

[0020] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the support seat, the clamping rod and the limiting plate of the utility model.

[0021] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the second guide frame, the limiting plate and the positioning rod of the utility model.

[0022] Figure 7 It is a three-dimensional cross-sectional structural schematic diagram of the installation shell, the heat dissipation fan and the first air guide cover of the utility model.

[0023] Figure 8 It is a three-dimensional cross-sectional structural schematic diagram of the second air guide cover, the dustproof net and the sponge pad of the utility model.

[0024] The reference numbers in the figure are as follows: 1. capacitive touch screen body, 2. main board body, 3. outer frame, 4. flexible circuit board, 5. main board circuit board, 6. first guide frame, 7. limit rod, 8. first elastic member, 9. support seat, 10. clamping rod, 11. second elastic member, 12. second guide frame, 13. limit plate, 14. positioning rod, 15. third elastic member, 16. mounting shell, 17. cooling fan, 18. first air guide cover, 19. second air guide cover, 20. dustproof net, 21. sponge pad. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1: A panel-bound capacitive touch screen, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8, including a capacitive touch screen body 1, a main board body 2, an outer frame 3, a flexible circuit board 4 and a main board circuit board 5. The main board body 2 is arranged on the capacitive touch screen body 1, and the outer frame 3 for protection is arranged on the capacitive touch screen body 1. The flexible circuit board 4 is connected to the capacitive touch screen body 1, and the main board body 2 is arranged on the main board circuit board 5. The flexible circuit board 4 can be inserted into the main board circuit board 5. Two first guide frames 6 are fixedly connected to the main board circuit board 5. A limit rod 7 is slidably arranged on the first guide frame 6. The limit rod 7 is sleeved with a first elastic member 8. The two ends of the first elastic member 8 are respectively connected to the first guide frame 6 and the limit rod 7. A sponge pad 21 is arranged inside the outer frame 3. The sponge pad 21 absorbs the water mist on the capacitive touch screen body 1, so as to avoid excessive water mist affecting the use.

[0027] When the capacitive touch screen needs to be used, the capacitive touch screen body 1 is turned upside down so that the main board body 2 faces upward, and then the limit rod 7 is moved to the side away from each other, and the first elastic member 8 is compressed accordingly, and then the flexible circuit board 4 is inserted into the main board circuit board 5, and the capacitive touch screen body 1 is connected to the main board circuit board 5, and the limit rod 7 is released. The first elastic member 8 returns to its original state and moves the limit rod 7 to the side close to each other, so that the limit rod 7 clamps the flexible circuit board 4, thereby preventing the flexible circuit board 4 from loosening and affecting the normal use of the capacitive touch screen, and then the capacitive touch screen body 1 is turned on for use.

[0028] Example 2: Based on Example 1, please refer to Figure 1 , Figure 5 and Figure 6 Four support seats 9 are provided on the outer frame 3 by bolt connection. The four support seats 9 are distributed on the four corners of the outer frame 3. A clamping rod 10 is rotatably provided on the support seat 9. A second elastic member 11 is sleeved on the clamping rod 10. The two ends of the second elastic member 11 are respectively connected to the support seat 9 and the clamping rod 10.

[0029] When the capacitive touch screen needs to be repaired, the card rod 10 is first rotated outward, and the second elastic member 11 is deformed accordingly, and then the main board body 2 is removed from the outer frame 3. After the repair is completed, the main board body 2 is put back into the outer frame 3, and the card rod 10 is released. The second elastic member 11 returns to its original shape to make the card rod 10 rotate inward and contact the main board body 2, and then the card rod 10 limits the main board body 2, thereby fixing the main board body 2 on the outer frame 3.

[0030] See also Figure 5 and Figure 6Four second guide frames 12 are provided on the outer frame 3 by bolt connection, a limit plate 13 is provided on the clamping rod 10, a positioning rod 14 is slidably provided on the second guide frame 12, and the contact surface between the positioning rod 14 and the limit plate 13 is an inclined surface. Two third elastic members 15 are sleeved on the positioning rod 14, and the two ends of the third elastic member 15 are respectively connected to the second guide frame 12 and the positioning rod 14.

[0031] When repairing the capacitive touch screen, the card rod 10 is rotated outward so that the limit plate 13 moves outward along the inclined surface on the positioning rod 14, so that the positioning rod 14 penetrates into the limit plate 13 and fixes the card rod 10, thereby avoiding the card rod 10 being reset and affecting the repair during maintenance. After the maintenance is completed and the main board body 2 is put back into the outer frame 3, the positioning rod 14 is pushed downward to make it disengage from the card rod 10. At this time, the card rod 10 is rotated inward to contact the main board body 2.

[0032] See also Figure 1 , Figure 7 and Figure 8 A mounting shell 16 is provided on the main circuit board 5, a heat dissipation fan 17 is provided inside the mounting shell 16 by bolt connection, a first air guide cover 18 is provided on the rear side of the mounting shell 16, a second air guide cover 19 is provided on the outer frame 3 by bolt connection, the second air guide cover 19 is connected to the first air guide cover 18, and a dustproof net 20 is embedded on the second air guide cover 19 to prevent dust and other impurities from being blown onto the surface of the capacitive touch screen body 1.

[0033] When the mainboard circuit board 5 is running, heat is generated. The heat dissipation fan 17 is turned on and the heat dissipation fan 17 operates to absorb the heat, and then blows the heat to the surface of the capacitive touch screen body 1 through the first air guide cover 18 and the second air guide cover 19, thereby cleaning the dust and other impurities attached to the surface of the capacitive touch screen body 1, thereby achieving the purpose of heat dissipation and cleaning.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A panel-bound capacitive touch screen, comprising a capacitive touch screen body (1), a main board body (2), an outer frame (3), a flexible circuit board (4) and a main board circuit board (5), wherein the main board body (2) is arranged on the capacitive touch screen body (1), the outer frame (3) for protection is arranged on the capacitive touch screen body (1), the flexible circuit board (4) is connected to the capacitive touch screen body (1), the main board circuit board (5) is arranged on the main board body (2), and the flexible circuit board (4) can be inserted into the main board circuit board (5), characterized in that: It also comprises a first guide frame (6), a limiting rod (7) and a first elastic member (8); two first guide frames (6) are fixedly connected to the main circuit board (5); a limiting rod (7) is slidably arranged on the first guide frame (6); and the limiting rod (7) is sleeved with the first elastic member (8).

2. A panel-bound capacitive touch screen as claimed in claim 1, characterized in that: It also includes a support seat (9), a clamping rod (10) and a second elastic member (11); a plurality of support seats (9) are mounted on the outer frame (3); a clamping rod (10) is rotatably arranged on the support seat (9); and a second elastic member (11) is sleeved on the clamping rod (10).

3. A panel-bound capacitive touch screen as claimed in claim 2, characterized in that: The invention also comprises a second guide frame (12), a limiting plate (13), a positioning rod (14) and a third elastic member (15); a plurality of second guide frames (12) are mounted on the outer frame (3); a limiting plate (13) is arranged on the clamping rod (10); a positioning rod (14) is slidably arranged on the second guide frame (12); and two third elastic members (15) are sleeved on the positioning rod (14).

4. The panel-bound capacitive touch screen according to claim 1, characterized in that: The invention also comprises a mounting shell (16), a heat dissipation fan (17), a first air guide cover (18) and a second air guide cover (19); the mounting shell (16) is arranged on the main board circuit board (5); the heat dissipation fan (17) is arranged inside the mounting shell (16); the first air guide cover (18) is arranged on the rear side of the mounting shell (16); the second air guide cover (19) is arranged on the outer frame (3); and the second air guide cover (19) is connected to the first air guide cover (18).

5. A panel-bound capacitive touch screen as claimed in claim 4, characterized in that: It also includes a dustproof net (20), and the second air guide cover (19) is embedded with the dustproof net (20).

6. The panel-bound capacitive touch screen according to claim 1, characterized in that: It also includes a sponge pad (21), and the sponge pad (21) is arranged inside the outer frame (3).

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