TW201714053A - Touch pad module and electronic device - Google Patents

Abstract

A touch pad module suited for an electronic device including a structural member, a touch circuit board, and a touch member is provided. The structural member has a recess, and the recess and other portion of the structural member are formed integrally. The touch circuit board is disposed in the recess, and the touch member is disposed on the touch circuit board and located in the recess. An electronic device is also provided.

Description

Touchpad module and electronic device

The invention relates to a touch panel module and an electronic device.

Electronic devices, such as notebook computers, are generally equipped with a keyboard and a touch pad as an input interface of an electronic device instead of a mouse, and are equipped with two buttons arranged side by side to replace the left button on the mouse. And right click to trigger the button function (such as clicking the icon or opening the menu, etc.).

In order to reduce the overall structural space of the touch panel, there has been a design in the prior art that the push switch is directly integrated on the touch circuit board and triggered by directly pressing the touch panel to further omit the above-mentioned left and right juxtaposition. The arrangement of the buttons and the thin design of the electronic device facilitate the formation of a known click pad.

However, in the design of the pressing plate known at present, an additional bracket is required as a structure for combining the body of the touch voltage circuit board and the electronic device, and the pressing effect is also provided by the flexibility of the bracket, that is, In the manufacturing process, after the opening of the electronic device body, the bracket is disposed at the opening, and then other touch panel related components such as a touch circuit board are disposed thereon.

In this way, the structure is prone to a gap between the bracket and the body due to the manufacturing or assembly tolerance due to the discontinuous state of the opening, thereby allowing the user to easily see the internal components of the body from the outside of the body through the gap, and also represents Foreign objects easily enter the body from the gap. Moreover, the positioning between the bracket and the body is easily interfered by the opening, and when other touch panel related components are assembled to the bracket, the positioning relationship between the components and the opening is also affected, and the assembly is easy. Tolerances are generated during the process, which may cause problems such as poor user feel and unsuccessful triggering of the push switch. In addition to the above structural problems, the bracket is limited by cost and structural strength, and thus becomes the current touch panel module. A component in a group that is prone to quality concerns.

Therefore, how to effectively avoid the above problems has become a consideration for relevant personnel.

The invention provides a touch panel module and an electronic device, which improve the assembly quality between the body and the touch panel by a seamless structure.

The touch panel module of the present invention includes a structural member, a sensing circuit board, and a contact member. The structural member has a recess that is integrally formed with the structurally non-recessed portion. The touch circuit board is disposed in the recess. The contact is disposed on the touch circuit board and located within the recess.

The electronic device of the present invention includes a body, a touch circuit board, and a contact. The body has a recess. The touch circuit board is disposed in the recess. The contacts are disposed on the touch circuit board. The recessed opening faces the operating side of the electronic device.

Based on the above, the touch panel module disposed on the electronic device is integrally formed by the recess on the structural member and the other non-recessed portions, so that the sensing circuit board and the contact member can be smoothly positioned and fixed on the structure. There is no need to create doubts about poor positioning during assembly, and the integrally formed structure provides better structural strength and uniformity of appearance, thereby effectively avoiding assembly tolerances caused by discontinuous structures.

The above described features and advantages of the invention will be apparent from the following description.

FIG. 1 is a schematic diagram of a touch panel module according to an embodiment of the invention. FIG. 2 and FIG. 3 respectively illustrate exploded views of the touch panel module of FIG. 1 from different perspectives. Referring to FIG. 1 to FIG. 3 , in the embodiment, the touch panel module 100 is suitable for an electronic device (not shown), such as a notebook computer, for the user to use the touch panel module 100. It can be manipulated. Herein, the appearance and correspondence relationship of the touch panel module applied to the notebook computer can be known from the prior art, and will not be described herein. Of course, in other embodiments not shown, the touch panel module 100 can also be applied to other electronic devices other than the aforementioned notebook computer.

Herein, the touch panel module 100 includes a structural member 110, a sensing circuit board 120, and a contact member 130. The structural member 110 is, for example, a part of the body of the notebook computer, and has a recess 112, and the opening of the recess 112 is substantially Towards the operating side OP of the notebook. In general, the operating side OP is provided with a keyboard module (not shown) in addition to the touch panel module 100 of the embodiment.

The touch circuit board 120 is disposed on the structural member 110 and is located at the bottom portion 114 of the recess 112. The contact 130 is disposed on the touch circuit board 120 and is also located at the recess 112. In the present embodiment, the contact member 130 is, for example, a polyester resin that is attached to the touch circuit board 120 for contact and operation by a user's finger. Moreover, the touch circuit board 120 is a conventionally known resistive or capacitive touch panel structure, wherein the principle of the capacitive type is to change the movement of the cursor into a movement using a change in capacitance between the finger and the touch circuit board 120, and the resistive type The principle consists of a layer of deformable resistive film and a layer of fixed resistive film. The middle is separated by air. When the finger touches the touchpad, the upper resistive film is pressed to deform and contact the underlying resistive film. The resistive film senses the position of the finger and controls the movement of the cursor. Based on the above, details of the touch circuit board 120 are not described herein.

It should be noted that the structural member 110 of the present embodiment is integrally formed at the bottom portion 114 and the non-recessed portion 112 of the recess 112, and is formed, for example, in the injection molding process of the body of the notebook computer. The touch circuit board 120 and the contacts 130 thereon can thereby be disposed more smoothly and securely within the recess 112 of the structural member 110. In addition, the connector 128 of the touch-sensitive circuit board 120 facing away from the contact member 130 is passed through the opening 111 of the bottom portion 114 through a cable or a flexible circuit board (not shown) to be performed with the electronic components in the body of the electronic device. Electrical connection.

At the same time, due to the integrally formed structure, it is avoided that the existing body has a discontinuous structure such as an opening, and the gap is not generated from the operating side OP, so that the touch panel module 100 has better Appearance and avoid foreign objects entering through the gap. Moreover, the integrally formed structure can also effectively improve the structural strength, so that the touch-sensitive circuit board 120 and the contact member 130 thereon can be more stably combined with the structural member 110, and the aforementioned bracket can be omitted, thereby The assembly process ensures better assembly quality without creating assembly tolerances, while also reducing manufacturing costs.

4 is a cross-sectional view of the touch panel module of FIG. 1. Referring to FIG. 2 to FIG. 4 simultaneously, in the embodiment, the structural member 110 has a plurality of openings 118 at the bottom portion 114, and the sensing circuit board 120 has a plurality of spacers 122, which are, for example, thermally fused. The method or surface mount technology is combined thereon, and the spacer 122 is correspondingly locked to the opening 118 by a plurality of lock attachments 160 to fix the touch circuit board 120 to the bottom portion 114 of the recess 112. And a gap G1 is maintained with the bottom portion 114. Moreover, the structural member 110 further has a stud 115 located in the recess 112 and standing on the bottom portion 114, and the touch circuit board 120 further has a trigger point 124, and the stud 115 and the touch point 124 are mutually opposite each other. correspond. Accordingly, when the user presses the contact 130 and the touch circuit board 120 from the operation side OP, the protrusion 115 and the contact point 124 are pressed against each other to generate a trigger signal.

It should be noted that, in this embodiment, the structural member 110 further has a plurality of notches 119 corresponding to and surrounding the opening 118, thereby increasing the flexibility of the sensing circuit board 120 after being locked to the structural member 110. At the same time, it is also possible to adjust the user's pressing feel. In addition, the structural member 110 further has a plurality of positioning posts 117 standing on the bottom portion 114, and the sensing circuit board 120 further has a plurality of positioning holes 126 for facilitating the positioning of the pair of positioning posts 117 during assembly. The aperture 126 achieves the effect of positioning the contact circuit board 120 and the contacts 130 thereon in the recess 112.

In this embodiment, the touch panel module 100 further includes a balance member 140 disposed between the touch circuit board 120 and between the touch circuit board 120 and the bottom portion 114 of the recess 112. The balance member 140 is partially bent by stamping with a thin metal plate (as shown in FIG. 3 and a partial enlarged view thereof), thereby providing structural rigidity when the touch circuit board 120 is pressed, so that the user can press the contact member. The partial position of 130 enables the contact point 124 to smoothly press against the stud 115 due to the balance member 140.

In detail, one surface of the balance member 140 is fixed to the touch circuit board 120 by the adhesive member 150, for example, a double-sided adhesive tape, and the other surface is formed with a plurality of hooks 142, thereby The plurality of button holes 116 of the structural member 110 at the bottom portion 114 are correspondingly buckled with each other to allow the balance member 140 to serve as a connecting member for the touch circuit board 120 and the bottom portion 114 of the recess 112.

It should be noted that the balance member 140 is substantially on the same side of the touch circuit board 120 as the touch point 124. As shown in FIG. 3, the touch point 124 is substantially partially surrounded by the gap of the balance member 140. In this way, when the user applies a force to the part of the contact 130 from the operation side OP (shown in FIG. 1 ), that is, the partial area of the balance member 140 attached to the touch circuit board 120 via the adhesive 150 , and When the area is within the orthographic projection range of the contact member 130, since the balance member 140 has better structural rigidity with respect to the touch-sensing circuit board 120, the area portion can be simultaneously pressed toward the recess 112 due to the pressure. The bottom portion 114 is deformed close. In other words, the user does not need to limit the portion of the contact member 130 that is facing the contact point 124. Instead, the user can press the contact point 124 and the post 115 within the orthographic projection range of the aforementioned area. The effect of pressing and triggering.

On the other hand, as shown in FIG. 2 and FIG. 3 , in the touch panel module 100 of the embodiment, the structural member 110 further has a plurality of elastic arms 113 located at the bottom portion 114 of the recess 112 and corresponding to the balance member 140 . The ends of the respective elastic arms 113 have bumps 113a facing the balance member 140. When the contact member 130 and the sensing circuit board 120 are pressed, the balance member 150 is driven to move toward the bottom portion 114. At this time, the balance member 140 is pressed against the bump 113a as the deformation moves, thereby deforming the elastic arm 113. According to this, when the pressure receiving action is removed and the touch sensing circuit board 120 is not pressed, the elastic arm 113 can push the balance member 140 to push the balance member 140 with its elastic restoring force, thereby making the touch circuit board 120, Contact 130 is reset. In this way, the contact member 130, the sensing circuit board 120 and the balance member 140 can be returned to the original position in an uncompressed state by the elastic force of the elastic arm 113, thereby ensuring the touch of the embodiment. The control panel module 100 does not collapse due to pressure.

In summary, in the above embodiment of the present invention, since the recess on the structural member is integrally formed with other non-recessed portions, the sensing circuit board and the contact member can be smoothly positioned and fixed on the structure. It can provide better structural strength and better appearance, that is, the user can view the touch panel module from the operating side of the electronic device without the occurrence of a gap to improve the aesthetic appearance. At the same time, the integrally formed structure avoids the use of the bracket in the prior art, so that the assembly precision can be improved during the assembly process, the assembly tolerance can be avoided, and the manufacturing process and the manufacturing cost can be simplified.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧Touchpad module
110‧‧‧Structural parts
111‧‧‧ openings
112‧‧‧ dent
113‧‧‧Flexible arm
113a‧‧‧ bumps
114‧‧‧ bottom
115‧‧‧Bump
116‧‧‧ buttonhole
117‧‧‧Positioning column
118‧‧‧Opening
119‧‧ ‧ gap
120‧‧‧Sensor board
122‧‧‧ spacers
124‧‧‧ touch point
126‧‧‧Positioning holes
130‧‧‧Contacts
140‧‧‧ Balance pieces
142‧‧‧ card hook
150‧‧‧Next
160‧‧‧Lock attachment
G1‧‧‧ gap
OP‧‧‧Operation side

FIG. 1 is a schematic diagram of a touch panel module according to an embodiment of the invention. FIG. 2 and FIG. 3 respectively illustrate exploded views of the touch panel module of FIG. 1 from different perspectives. 4 is a cross-sectional view of the touch panel module of FIG. 1.

110‧‧‧Structural parts

111‧‧‧ openings

112‧‧‧ dent

113‧‧‧Flexible arm

113a‧‧‧ bumps

114‧‧‧ bottom

115‧‧‧Bump

116‧‧‧ buttonhole

117‧‧‧Positioning column

118‧‧‧Opening

119‧‧ ‧ gap

120‧‧‧Sensor board

130‧‧‧Contacts

140‧‧‧ Balance pieces

142‧‧‧ card hook

150‧‧‧Next

160‧‧‧Lock attachment

Claims (11)

A touch panel module comprising: a structural member having a recess, the recess being integrally formed with the recess on the structural member; a sensing circuit board disposed on the structural member and located in the recess; And a contact member disposed on the sensing circuit board and located in the recess. The touch panel module of claim 1 is applicable to a body of an electronic device, the structural member being a part of the body, the opening of the recess facing an operating side of the electronic device. The touch panel module of claim 1, wherein the structural member has a plurality of openings, and the sensing circuit board has a plurality of spacers, the spacers being provided by a plurality of lock accessories Correspondingly, the openings are locked to maintain a gap between the sensing circuit board and the bottom of the recess. The touch panel module of claim 3, wherein the structural member further has a plurality of notches corresponding to and surrounding the openings. The touch panel module of claim 1, further comprising: a balance member disposed on the sensing circuit board and located between the sensing circuit board and the bottom of the recess, the sensing circuit board further having a a trigger point facing the bottom of the recess, and the contact point and the balance member are located on the same side of the touch circuit board. The touch panel module of claim 5, wherein the structural member further has a protrusion located in the recess and facing the contact point, wherein the sensing circuit board is pressed to make the touch point Trigger on the stud. The touch panel module of claim 6, wherein the structural member further has a plurality of elastic arms at a bottom of the recess and corresponding to the balance member. When the touch circuit board is pressed, the balance member The elastic arms are pressed and deformed to deform the elastic force of the elastic arms to reset the sensing circuit board and the balance member when the sensing circuit board is not pressed. The touch panel module of claim 5, wherein the structural member further has a plurality of button holes located at the bottom of the recess, and the balance member further has a plurality of hooks, and the hooks are buckled. The button holes are fixed to fix the balance member to the recess. The touch panel module of claim 5, further comprising: a follower, and then between the sensing circuit board and the balance member. The touch panel module of claim 1, wherein the structural member further has a plurality of positioning posts, and the sensing circuit board further has a plurality of positioning holes, wherein the positioning posts are correspondingly disposed on the plurality of positioning holes Positioning holes. An electronic device comprising: a body having a recess; a sensing circuit board disposed in the recess; and a contact disposed on the sensing circuit board, wherein the recessed opening faces an operating side of the electronic device.