Backlight module applied to infrared touch screen

Abstract

The backlight module applied to the infrared touch screen comprises an outer frame, the input end of the outer frame is electrically connected with a wire, one end of the wire is provided with a connector, and one side of the outer frame is provided with a limiting assembly used for fixing the position of the connector. The limiting assembly comprises a fixing frame fixedly connected to one side of the outer frame, a positioning assembly used for limiting movement of the connector is arranged on the inner wall of the bottom end of the fixing frame, and a pressing assembly used for limiting movement of the connector is arranged at the top of the connector. Through the design of the positioning groove and the pressing assembly, when the connector is detached from other equipment, the connector is moved to the top of the positioning groove, the connector is pressed into the positioning groove through the pressing block on the pressing assembly, and the connector cannot move at will through the limitation of the positioning groove; and therefore, the situation that the connector falls onto the ground and is damaged is avoided, and the connector is protected.

Description

Technical Field

[0001] The utility model relates to the field of backlight modules, and particularly to a backlight module applied to an infrared touch screen. Background Technique

[0002] An infrared touch screen uses an infrared matrix densely arranged in the X and Y directions to detect and locate the user's touch. An infrared touch screen installs a circuit board frame in front of the display. The circuit board arranges infrared emitting tubes and infrared receiving tubes on the four sides of the screen, corresponding to each other to form a horizontal and vertical cross infrared matrix. When the user touches the screen, the finger will block the horizontal and vertical two infrared rays passing through this position, so the position of the touch point on the screen can be judged; the lamp tubes of the infrared touch screen are arranged inside the frame and are connected to the device through wires and connectors. When the use is over, the connector needs to be pulled out from the device, and the pulled-out connector will be placed randomly on one side. When the user walks nearby, there is a situation where the connector is collided to the ground, resulting in damage to the connector due to the collision with the ground or the user's trampling. Content of the Utility Model

[0003] The purpose of the utility model is to provide a backlight module applied to an infrared touch screen to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A backlight module applied to an infrared touch screen, including a frame, the input end of the frame is electrically connected with a wire, one end of the wire is provided with a connector, and one side of the frame is provided with a limiting component for fixing the position of the connector;

[0005] The limiting component includes a fixed frame fixedly connected to one side of the frame, the inner wall of the bottom end of the fixed frame is provided with a positioning component for restricting the movement of the connector, and the top of the connector is provided with a pressing component for restricting the movement of the connector;

[0006] The positioning component includes a positioning groove opened on the inner wall of the bottom end of the fixed frame, the connector is inserted and connected inside the positioning groove, and the pressing component includes a pressing block arranged on the top of the connector.

[0007] Preferably, the horizontal longitudinal section of the fixed frame is arranged in a U shape.

[0008] Preferably, the inner wall of the bottom end of the fixed frame is provided with a wire passing hole, and the wire is inserted and connected inside the wire passing hole.

[0009] Preferably, the positioning groove and the wire passing hole communicate with each other.

[0010] Preferably, the bottom of the pressing block is provided with a pressing groove adapted to the connector, and the connector is inserted and connected inside the pressing groove.

[0011] Preferably, an elastic block for moving the position of the pressing block is fixedly connected to the top of the pressing block, and the elastic block is fixedly connected to the inner wall of the top of the fixed frame.

[0012] Preferably, a lifting plate for moving the position of the pressing block is provided at the top of the fixing frame, and a connecting piece for connecting the pressing block and the lifting plate is provided at the top of the pressing block.

[0013] Preferably, the connecting member includes a connecting rod fixedly connected to the top end of the pressing block, and the connecting rod is fixedly connected to the bottom end of the lifting plate.

[0014] Preferably, a first through hole is opened in the middle of the elastic block, a second through hole is opened on the inner wall of the top end of the fixing frame, and the first through hole and the second through hole are interconnected.

[0015] Preferably, the connecting rod is inserted and connected in sequence inside the first through hole and the second through hole.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model adopts the design of the positioning groove and the pressing assembly. When the joint is removed from other equipment, the joint is moved to the top of the positioning groove, and the pressing block on the pressing assembly is used to press the joint into the interior of the positioning groove. The positioning groove restricts the joint from moving at will, thereby preventing the joint from falling to the ground and being damaged, thereby protecting the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0019] Figure 2 This is one of the partial three-dimensional structural schematic diagrams of the utility model.

[0020] Figure 3 This is the second schematic diagram of the partial three-dimensional structure of the utility model.

[0021] Figure 4 It is a schematic diagram of a partial side sectional structure of the utility model.

[0022] In the figure: 1. outer frame; 2. wire; 3. connector; 4. fixing frame; 5. positioning assembly; 501. positioning groove; 502. threading hole; 6. pressing assembly; 601. pressing block; 602. pressing groove; 603. elastic block; 604. connecting rod; 605. lifting plate; 7. first through hole; 8. second through hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides a backlight module applied to an infrared touch screen as Figure 1-4 shown, which includes an outer frame 1. The input end of the outer frame 1 is electrically connected to a wire 2. One end of the wire 2 is provided with a connector 3. One side of the outer frame 1 is provided with a limiting component for fixing the position of the connector 3; the limiting component includes a fixing frame 4 fixedly connected to one side of the outer frame 1. The inner wall of the bottom end of the fixing frame 4 is provided with a positioning component 5 for limiting the movement of the connector 3. The top of the connector 3 is provided with a pressing component 6 for limiting the movement of the connector 3; the positioning component 5 includes a positioning groove 501 opened on the inner wall of the bottom end of the fixing frame 4. The connector 3 is inserted and connected inside the positioning groove 501. The pressing component 6 includes a pressing block 601 provided on the top of the connector 3.

[0025] It should be noted that the provided outer frame 1 and wire 2 are for an infrared touch screen of model YC-M. The infrared touch screen uses an infrared matrix densely arranged in the X and Y directions to detect and locate the user's touch. An outer circuit board frame 1 is installed in front of the display. The circuit board arranges infrared emitting tubes and infrared receiving tubes on the four sides of the screen to form a horizontal and vertical cross infrared matrix. When the user touches the screen, the finger will block the horizontal and vertical two infrared rays passing through this position. Therefore, the position of the touch point on the screen can be judged; the provided fixing frame 4 is fixed to one side of the outer frame 1 by bonding or other means; the opened positioning groove 501 is adapted to the bottom of the connector 3. When it is necessary to fix the position of the connector 3, directly insert the bottom of the connector 3 into the inside of the positioning groove 501, and press the connector 3 into the inside of the positioning groove 501 through the pressing block 601, so that the connector 3 cannot shake randomly inside the positioning groove 501, thereby protecting the connector 3.

[0026] Specifically, the horizontal longitudinal section of the fixing frame 4 is set to be in a U shape. The inner wall of the bottom end of the fixing frame 4 is provided with a wire passing hole 502. The wire 2 is inserted and connected inside the wire passing hole 502. The positioning groove 501 communicates with the wire passing hole 502. The bottom of the pressing block 601 is provided with a pressing groove 602 adapted to the connector 3. The connector 3 is inserted and connected inside the pressing groove 602.

[0027] It should be noted that the threading hole 502 is used for the passage of the wire 2. When the connector 3 is inserted into the positioning groove 501, the wire 2 at the bottom passes through the threading hole 502 to avoid the wire 2 from bending. The pressing groove 602 opened at the bottom end of the pressing block 601 is used to limit the top of the connector 3 to avoid the connector 3 from shaking randomly.

[0028] Specifically, the top of the pressing block 601 is fixedly connected with an elastic block 603 for moving the position of the pressing block 601, the elastic block 603 is fixedly connected to the inner wall of the top of the fixed frame 4, the top of the fixed frame 4 is provided with a lifting plate 605 for moving the position of the pressing block 601, and the top of the pressing block 601 is provided with a connecting member for connecting the pressing block 601 and the lifting plate 605, the connecting member includes a connecting rod 604 fixedly connected to the top of the pressing block 601, the connecting rod 604 is fixedly connected to the bottom end of the lifting plate 605, a first through hole 7 is opened in the middle of the elastic block 603, a second through hole 8 is opened on the inner wall of the top of the fixed frame 4, the first through hole 7 and the second through hole 8 are interconnected, and the connecting rod 604 is inserted and connected to the inside of the first through hole 7 and the second through hole 8 in sequence.

[0029] It should be noted that the elastic block 603 is made of rubber material, which has the characteristic of being deformable. When squeezed, the elastic block 603 will be deformed. When the squeezing is lost, the elastic block 603 will restore the deformation. The connecting rod 604 is used to connect the pressing block 601 located inside the fixed frame 4 with the lifting plate 605 located at the top of the fixed frame 4, and the pressing block 601 is driven to move through the lifting plate 605.

[0030] Furthermore, when the position of the connector 3 needs to be fixed, the pressing block 601 is first pulled upward by the lifting plate 605, and the pressing block 601 is squeezed toward the elastic block 603, so that the elastic block 603 is squeezed and deformed, and then the connector 3 is moved into the interior of the fixed frame 4, so that the wire 2 is inserted into the interior of the threading hole 502, and the connector 3 is inserted into the interior of the positioning groove 501, and the upward pulling of the lifting plate 605 is removed, so that the elastic block 603 recovers its deformation, and the pressing block 601 is pushed toward the top of the connector 3, so that the top of the connector 3 is inserted into the interior of the pressing groove 602, thereby completing the position restriction of the connector 3.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A backlight module for an infrared touch screen, comprising an outer frame (1), an input end of the outer frame (1) being electrically connected to a wire (2), one end of the wire (2) being provided with a connector (3), characterized in that: One side of the outer frame (1) is provided with a limiting component for fixing the position of the joint (3); The limiting component includes a fixed frame (4) fixedly connected to one side of the outer frame (1). The inner wall of the bottom end of the fixed frame (4) is provided with a positioning component (5) for limiting the movement of the joint (3). The top of the joint (3) is provided with a pressing component (6) for limiting the movement of the joint (3); The positioning component (5) includes a positioning groove (501) opened on the inner wall of the bottom end of the fixed frame (4). The joint (3) is inserted and connected inside the positioning groove (501). The pressing component (6) includes a pressing block (601) arranged on the top of the joint (3).

2. The backlight module for infrared touch screen according to claim 1, characterized in that: The horizontal longitudinal section of the fixed frame (4) is arranged in a U shape.

3. The backlight module for infrared touch screen according to claim 1, characterized in that: The inner wall of the bottom end of the fixed frame (4) is provided with a wire passing hole (502). The wire (2) is inserted and connected inside the wire passing hole (502).

4. The backlight module for infrared touch screen according to claim 3, characterized in that: The positioning groove (501) and the wire passing hole (502) communicate with each other.

5. The backlight module for infrared touch screen according to claim 1, characterized in that: The bottom of the pressing block (601) is provided with a pressing groove (602) adapted to the joint (3). The joint (3) is inserted and connected inside the pressing groove (602).

6. The backlight module for infrared touch screen according to claim 5, characterized in that: The top of the pressing block (601) is fixedly connected with an elastic block (603) for moving the position of the pressing block (601). The elastic block (603) is fixedly connected to the inner wall of the top end of the fixed frame (4).

7. The backlight module for infrared touch screen according to claim 6, characterized in that: The top end of the fixed frame (4) is provided with a lifting plate (605) for moving the position of the pressing block (601). The top of the pressing block (601) is provided with a connecting piece for connecting the pressing block (601) and the lifting plate (605).

8. The backlight module for infrared touch screen according to claim 7, characterized in that: The connecting piece includes a connecting rod (604) fixedly connected to the top end of the pressing block (601). The connecting rod (604) is fixedly connected to the bottom end of the lifting plate (605).

9. The backlight module for infrared touch screen according to claim 8, characterized in that: A first through hole (7) is opened in the middle of the elastic block (603). A second through hole (8) is opened in the inner wall of the top end of the fixed frame (4). The first through hole (7) and the second through hole (8) communicate with each other.

10. The backlight module for infrared touch screen according to claim 9, characterized in that: The connecting rod (604) is sequentially inserted and connected inside the first through hole (7) and the second through hole (8).

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