An integrated button structure for a laptop touchpad

Abstract

This utility model discloses an integrated button structure for a laptop touchpad, comprising: a glass panel, a PCB circuit board, adhesive backing, and a base plate. The base plate includes a support frame and a tray. The support frame includes a front frame and a rear frame. The rear frame is a hollow rectangular frame with one side open, and the front frame is a hollow trapezoidal frame with the bottom side open. The front and rear frames are connected together, with a tongue-shaped tray position formed in the middle. The tray is cut from the tray position with a contour similar to the contour of the tray position. The bottom edge of the rear frame is connected to the bottom of the tray by multiple connecting posts, all of which are inclined upwards. Two limiting support mechanisms are symmetrically arranged between the tray and the support frame on both sides. The rear frame has multiple locking holes on three sides, and the top of the front frame has multiple semi-locking holes symmetrically arranged about the center line. Through the above methods, this utility model can further meet the requirements of lightweighting while reducing the overall production cost.

Description

Technical Field

[0001] This utility model relates to the field of laptop computers, and in particular to an integrated button structure for a laptop computer touchpad. Background Technology

[0002] A laptop touchpad typically consists of a glass panel, a PCB circuit board, adhesive backing, and a base plate. The base plate is usually composed of two metal plates, resulting in a relatively large overall weight. This weight not only affects the total weight of the laptop, hindering the goal of lightweight design, but also the large vertical space occupied by the two metal plates negatively impacts the overall thickness of the laptop. Furthermore, since the touchpad needs to control the movement of the cursor on the computer and provide feedback on pressing actions, the deformation requirements of the metal plates that make up the base plate are also relatively high. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide an integrated button structure for a laptop touchpad, which can improve the weight reduction of the entire touchpad module and meet the requirements of the base plate being deformed under pressure.

[0004] To solve the above-mentioned technical problems, the present invention provides a technical solution as follows: An integrated button structure for a laptop touchpad is provided. This integrated button structure includes a glass panel, a PCB circuit board, adhesive backing, and a base plate. The base plate includes a support frame and a tray. The glass panel is fixed to the PCB circuit board, and the PCB circuit board is fixed to the tray using adhesive backing. The support frame and tray are integrally stamped from a single sheet of iron. The support frame includes a front frame and a rear frame. The rear frame has an overall outline of a hollow rectangular frame with one open side, and the front frame has a hollow trapezoidal frame with an open bottom edge. The front frame and the rear frame are connected together. The middle hollow forms a tongue-shaped tray position, from which the tray is cut out. The outline of the tray is similar to that of the tray position. The bottom edge of the rear frame is connected to the bottom of the tray by multiple connecting posts. All connecting posts are inclined upward to lift the tray relative to the support frame. Two limiting support mechanisms are also symmetrically arranged between the tray and the support frame on both sides. Multiple locking holes are arranged around the three sides of the rear frame. Multiple half-locking holes are symmetrically arranged around the center line on the top of the front frame. The locking holes and half-locking holes lock the support frame to the touchpad module mounting position of the laptop computer. A metal spring plate is installed at the touchpad module mounting position directly below the center of the front frame panel.

[0005] In a preferred embodiment of this utility model, sound-absorbing cotton is laid on the side of the support frame facing the PCB circuit board.

[0006] In a preferred embodiment of this utility model, the limiting support mechanism includes limiting holes symmetrically arranged on both sides of the rear frame and limiting connectors installed at corresponding positions on both sides of the tray. The positions of the two limiting holes are close to the connection area between the rear frame and the front frame on the corresponding side. The inner frame of each limiting hole protrudes upward after being stamped to form a door-shaped limiting frame. The door-shaped limiting frame and the limiting hole together form a movable limiting position. The body of each limiting connector is fixed on the lower surface of the tray, and the top end extends into the corresponding movable limiting position.

[0007] In a preferred embodiment of this utility model, the limiting support mechanism includes limiting holes symmetrically arranged on both sides of the rear frame and two circuit board limiting protrusions symmetrically arranged on corresponding positions on both sides of the PCB circuit board. The positions of the two limiting holes are close to the connection area between the rear frame and the front frame on the corresponding side. The inner frame of each limiting hole protrudes upward after stamping to form a door-shaped limiting frame. The door-shaped limiting frame and the limiting hole together surround the movable limiting. The top of each circuit board limiting protrusion just extends into the corresponding movable limiting.

[0008] In a preferred embodiment of this utility model, the limiting support mechanism includes limiting grooves symmetrically arranged on both sides of the rear frame and pallet limiting protrusions directly and symmetrically punched out on both sides of the pallet. The positions of the two limiting grooves are close to the connection area between the rear frame and the front frame on the corresponding side. A door-shaped limiting plate is fixedly installed on the groove opening of each limiting groove. The door-shaped limiting plate and the limiting groove together form a movable limiting position. The top of each pallet limiting protrusion just extends into the corresponding movable limiting position.

[0009] The beneficial effects of this utility model are as follows: This utility model changes the traditional touchpad module base plate structure from being made of two iron plates combined to being made of one iron plate through integrated stamping. Compared with the traditional base plate structure, the overall thickness and weight of the entire base plate structure are significantly reduced, which not only further meets the requirements of laptops in terms of lightness and thinness, but also simplifies the production steps of the base plate and reduces the production cost of the base plate. On the other hand, after integrated stamping, the tray and the support frame are connected at an angle by multiple connecting columns. This multi-point connection method, combined with the limiting support structure, can give the tray and the support frame a certain degree of elasticity, which can meet the requirements of deformation when pressed. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the laminated structure of a preferred embodiment of the present invention;

[0011] Figure 2 This is a schematic diagram of the bottom view structure of the embodiment shown;

[0012] Figure 3 yes Figure 2 Enlarged front view of the middle limiting structure;

[0013] Figure 4 yes Figure 2 Enlarged view of the back of the middle limiting structure;

[0014] Figure 5 This is a schematic diagram showing the connection between the outer frame of the base plate and the support plate in the embodiment shown.

[0015] Figure 6 This is a schematic diagram of the laminated structure of another preferred embodiment of the present invention;

[0016] Figure 7 This is a schematic diagram of the bottom view structure of the embodiment shown;

[0017] Figure 8 yes Figure 7 Enlarged schematic diagram of the middle limiting structure;

[0018] Figure 9 This is a schematic diagram of the laminated structure of another preferred embodiment of the present invention;

[0019] Figure 10 This is a schematic diagram of the bottom view structure of the embodiment shown;

[0020] Figure 11 yes Figure 10 Enlarged front view of the middle limiting structure;

[0021] Figure 12 yes Figure 10 Enlarged view of the back of the middle limiting structure;

[0022] The components in the attached diagram are labeled as follows:

[0023] 1. Base plate, 2. Adhesive backing, 3. PCB circuit board, 4. Glass panel;

[0024] 101. Tray, 102. Support frame, 103. Connecting column, 104. Limiting connector, 105. Locking hole, 106. Half-locking hole, 107. Limiting groove / hole, 108. Tray limiting protrusion, 109. Door-shaped limiting frame, 1010. Door-shaped limiting plate;

[0025] 301. Circuit board limiting protrusion. Detailed Implementation

[0026] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A preferred embodiment of this utility model includes:

[0028] An integrated touchpad button structure for a laptop computer includes: a glass panel 4, a PCB circuit board 3, adhesive backing 2, and a base plate 1. The base plate 1 includes a support frame 102 and a tray 101. The glass panel 4 is fixed to the PCB circuit board 3, and the PCB circuit board 3 is bonded to the tray 101 by the adhesive backing 4. Sound-dampening cotton is laid on the side of the support frame 102 facing the PCB circuit board 3 to reduce the sound emitted when pressed. The support frame 102 and the tray 101 are integrally stamped from a single piece of iron plate. The support frame 102 includes a front frame and a rear frame. The rear frame has an overall outline of a hollow rectangular frame with one open side, and the front frame has a hollow trapezoidal frame with an open bottom edge. The front frame and rear frame are connected together, with a tongue-shaped tray space in the middle. The tray 101 is cut out from the tray space, and its outline is similar to that of the tray space. The bottom edge of the rear frame is connected to the bottom of the tray 101 by five connecting posts 103. Each connecting post 103 is inclined upward to lift the tray 101 relative to the support frame 102. Two limiting support mechanisms are also symmetrically arranged between the tray 101 and the support frame 102 on both sides. The rear frame has multiple screw locking holes 105 on three sides to fix the rear frame in the mounting position. The top of the front frame has three semi-locking holes 106 symmetrically arranged about the center line. The locking holes 105 and the semi-locking holes 106 lock the support frame 102 in the touchpad module mounting position of the laptop computer. The semi-locking hole 106 ensures the stability of the front frame installation position while also providing a certain amount of longitudinal movement space. The touch panel module is installed with a metal spring plate directly below the center of the front frame panel, so that when the front frame panel is pressed, it can bounce back in the direction determined by the semi-locking hole 106.

[0029] The limiting support mechanism includes limiting holes 107 symmetrically arranged on both sides of the rear frame and limiting connectors 104 installed at corresponding positions on both sides of the tray 101. The positions of the two limiting holes 107 are close to the connection area between the rear frame and the front frame on the corresponding side. The inner frame of each limiting hole 107 is stamped and protrudes upward to form a door-shaped limiting frame 109. The door-shaped limiting frame 109 and the limiting hole 107 together form a movable limit. The body of each limiting connector 104 is fixed to the lower surface of the tray 101, and its top extends into the corresponding movable limit. In this way, the limiting support mechanism can constrain the feedback action amplitude of the front frame plate when the support frame 102 provides feedback to the pressing action, thereby improving the compactness of the entire structure.

[0030] Please see Figure 5 , Figure 6 , Figure 7 and Figure 8 Another preferred embodiment of this utility model includes:

[0031] An integrated touchpad button structure for a laptop computer includes: a glass panel 4, a PCB circuit board 3, adhesive backing 2, and a base plate 1. The base plate 1 includes a support frame 102 and a tray 101. The glass panel 4 is fixed to the PCB circuit board 3, and the PCB circuit board 3 is bonded to the tray 101 by the adhesive backing 4. Sound-dampening cotton is laid on the side of the support frame 102 facing the PCB circuit board 3 to reduce the sound emitted when pressed. The support frame 102 and the tray 101 are integrally stamped from a single piece of iron plate. The support frame 102 includes a front frame and a rear frame. The rear frame has an overall outline of a hollow rectangular frame with one open side, and the front frame has a hollow trapezoidal frame with an open bottom edge. The front frame and rear frame are connected together, with a tongue-shaped tray space in the middle. The tray 101 is cut out from the tray space, and its outline is similar to that of the tray space. The bottom edge of the rear frame is connected to the bottom of the tray 101 by seven connecting posts 103. Each connecting post 103 is inclined upward to lift the tray 101 relative to the support frame 102. Two limiting support mechanisms are also symmetrically arranged between the tray 101 and the support frame 102 on both sides. The rear frame has multiple screw locking holes 105 on three sides to fix the rear frame in the mounting position. The top of the front frame has three semi-locking holes 106 symmetrically arranged about the center line. The locking holes 105 and the semi-locking holes 106 lock the support frame 102 in the touchpad module mounting position of the laptop computer. The semi-locking hole 106 ensures the stability of the front frame installation position while also providing a certain amount of longitudinal movement space. The touch panel module is installed with a metal spring plate directly below the center of the front frame panel, so that when the front frame panel is pressed, it can bounce back in the direction determined by the semi-locking hole 106.

[0032] The limiting support mechanism includes limiting grooves 107 symmetrically arranged on both sides of the rear frame and tray limiting protrusions 108 directly and symmetrically punched out on both sides of the tray 101. The positions of the two limiting grooves 107 are close to the connection area between the rear frame and the front frame on the corresponding side. A door-shaped limiting plate 1010 is fixedly installed on the opening of each limiting groove 107. The door-shaped limiting plate 1010 and the limiting groove 107 together form a movable limit. The top of each tray limiting protrusion 108 extends exactly into the corresponding movable limit. In this way, the limiting support mechanism can constrain the feedback action amplitude of the front frame plate while the support frame provides feedback to the pressing action, thereby improving the compactness of the entire structure.

[0033] Please see Figure 5 , Figure 9, Figure 10 , Figure 11 and Figure 12 Another preferred embodiment of this utility model includes:

[0034] An integrated touchpad button structure for a laptop computer includes: a glass panel 4, a PCB circuit board 3, adhesive backing 2, and a base plate 1. The base plate 1 includes a support frame 102 and a tray 101. The glass panel 4 is fixed to the PCB circuit board 3, and the PCB circuit board 3 is bonded to the tray 101 by the adhesive backing 4. Sound-dampening cotton is laid on the side of the support frame 102 facing the PCB circuit board 3 to reduce the sound emitted when pressed. The support frame 102 and the tray 101 are integrally stamped from a single piece of iron plate. The support frame 102 includes a front frame and a rear frame. The rear frame has an overall outline of a hollow rectangular frame with one open side, and the front frame has a hollow trapezoidal frame with an open bottom edge. The front and rear frames are connected together, with a tongue-shaped tray space in the middle. The tray 101 is cut out from the tray space, and its outline is similar to that of the tray space. The bottom edge of the rear frame is connected to the bottom of the tray 101 by four connecting posts 103. Each connecting post 103 is inclined upward to lift the tray 101 relative to the support frame 102. Two limiting support mechanisms are also symmetrically arranged between the tray 101 and the support frame 102 on both sides. The rear frame has multiple screw locking holes 105 on three sides to fix the rear frame in the mounting position. The top of the front frame has three semi-locking holes 106 symmetrically arranged about the center line. The locking holes 105 and the semi-locking holes 106 lock the support frame 102 in the touchpad module mounting position of the laptop computer. The semi-locking hole 106 ensures the stability of the front frame installation position while also providing a certain amount of longitudinal movement space. The touch panel module is installed with a metal spring plate directly below the center of the front frame panel, so that when the front frame panel is pressed, it can bounce back in the direction determined by the semi-locking hole 106.

[0035] The limiting support mechanism includes limiting holes 107 symmetrically arranged on both sides of the rear frame and two circuit board limiting protrusions 301 symmetrically arranged on corresponding positions on both sides of the PCB circuit board 3. The two limiting holes 107 are located close to the connection area between the rear frame and the front frame on the corresponding side. The inner frame of each limiting hole 107 is stamped and protrudes upward to form a door-shaped limiting frame 109. The door-shaped limiting frame 109 and the limiting hole together form a movable limit. The top of each circuit board limiting protrusion 301 extends into the corresponding movable limit. In this way, the limiting support mechanism can constrain the feedback action amplitude of the front frame plate while the support frame 102 provides feedback to the pressing action, thereby improving the compactness of the entire structure.

[0036] The above embodiments 1 to 3 are three different base plate structure schemes. In these three schemes, since the support frame and the tray are both formed by punching from a single iron plate, the forming process of the base plate is simplified, the flow length of the production line is reduced, and the production cost is reduced. On the other hand, the overall structural thickness is significantly reduced, saving space for the assembly of other components of the laptop computer, and the overall structure is more reliable and stable.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A notebook computer touchpad integrated button structure, the notebook computer touchpad integrated button structure comprising: The invention comprises a glass panel, a PCB circuit board, adhesive backing, and a base plate. The base plate includes a support frame and a tray. The glass panel is fixed to the PCB circuit board, and the PCB circuit board is fixed to the tray using adhesive backing. The support frame and tray are integrally formed from a single sheet of iron. The support frame includes a front frame and a rear frame. The rear frame is a hollow rectangular frame with one open side, and the front frame is a hollow trapezoidal frame with an open bottom edge. The front and rear frames are connected together, with a tongue-shaped tray position formed in the middle. The tray is cut out from this tray position. The outline of the back frame is similar to that of the tray position. The bottom edge of the back frame is connected to the bottom of the tray by multiple connecting columns. All connecting columns are inclined upward to lift the tray relative to the support frame. Two limiting support mechanisms are also symmetrically arranged between the tray and the support frame on both sides. Multiple locking holes are arranged around the three sides of the back frame. Multiple half-locking holes are symmetrically arranged around the center line on the top of the front frame. The locking holes and half-locking holes lock the support frame in the touchpad module mounting position of the laptop computer. A metal spring plate is installed in the center of the front frame panel directly below the touchpad module mounting position.

2. The integrated button structure for a laptop touchpad according to claim 1, characterized in that, The side of the support frame facing the PCB circuit board is covered with sound-absorbing cotton.

3. The integrated button structure for a laptop touchpad according to claim 1, characterized in that, The limiting support mechanism includes limiting holes symmetrically arranged on both sides of the rear frame and limiting connectors installed at corresponding positions on both sides of the tray. The positions of the two limiting holes are close to the connection area between the rear frame and the front frame on the corresponding side. The inner frame of each limiting hole protrudes upward after stamping to form a door-shaped limiting frame. The door-shaped limiting frame and the limiting hole together surround the movable limit. The body of each limiting connector is fixed on the lower surface of the tray, and the top end extends into the corresponding movable limit.

4. The integrated button structure for a laptop touchpad according to claim 1, characterized in that, The limiting support mechanism includes limiting holes symmetrically arranged on both sides of the rear frame and two circuit board limiting protrusions symmetrically arranged on both sides of the PCB circuit board. The positions of the two limiting holes are close to the connection area between the rear frame and the front frame on the corresponding side. The inner frame of each limiting hole protrudes upward after stamping to form a door-shaped limiting frame. The door-shaped limiting frame and the limiting hole together surround the movable limiting. The top of each circuit board limiting protrusion just extends into the corresponding movable limiting.

5. The integrated button structure for a laptop touchpad according to claim 1, characterized in that, The limiting support mechanism includes limiting grooves symmetrically arranged on both sides of the rear frame and pallet limiting protrusions directly and symmetrically punched out on both sides of the pallet. The positions of the two limiting grooves are close to the connection area between the rear frame and the front frame on the corresponding side. A door-shaped limiting plate is fixedly installed on the groove opening of each limiting groove. The door-shaped limiting plate and the limiting groove together form a movable limiting position. The top of each pallet limiting protrusion just extends into the corresponding movable limiting position.

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