CN219872332U - Touch module and electronic equipment - Google Patents

Abstract

The utility model discloses a touch module and electronic equipment. The touch module comprises a touch panel, a circuit board and a sensor module, wherein the circuit board is arranged on the back surface of the touch panel, the sensor module is arranged to detect touch force information on the touch panel, and the sensor module is arranged on one side of the circuit board, which is far away from the touch panel, and is electrically connected with the circuit board; the touch panel has a dimension in a first direction that is greater than a dimension of the circuit board in the first direction, and the touch panel is configured to extend to an opposite edge of a housing of an electronic device to which the touch panel is configured to be secured. The touch panel of the touch module can be integrated with the shell of the electronic equipment in appearance, so that the attractiveness of the electronic equipment is improved, and the touch module and the shell of the electronic equipment are simply assembled.

Description

Touch module and electronic equipment

Technical Field

The present utility model relates to the field of touch technology, and in particular, to a touch module and an electronic device.

Background

In a notebook computer, a touch module is generally installed at the middle position of a C-shaped shell, and the touch module is fixed with a supporting structure below the C-shaped shell through a bracket. The touch module is split between the appearance and the C shell, and has poor aesthetic property.

Disclosure of Invention

The embodiment of the utility model provides a touch module and electronic equipment, wherein the edge of a touch panel of the touch module can extend to the edge of a shell of the electronic equipment, so that when the touch module is applied to a notebook computer, the touch module can be integrated with a C shell in appearance, the attractiveness of the notebook computer is improved, and the touch module and the C shell are simple to assemble.

The technical scheme of the embodiment of the utility model is as follows:

the utility model provides a touch module, includes touch panel, circuit board and sensor module, the circuit board is installed touch panel's the back, the sensor module sets up to detect touch dynamics information on the touch panel, the sensor module is installed the circuit board deviate from touch panel's one side, and with the circuit board electricity is connected. The touch panel has a dimension in a first direction that is greater than a dimension of the circuit board in the first direction, and the touch panel is configured to extend to an opposite edge of a housing of an electronic device to which the touch panel is configured to be secured.

In some exemplary embodiments, a dimension of the touch panel in a second direction is greater than a dimension of the circuit board in the second direction, the first direction and the second direction being perpendicular.

In some exemplary embodiments, the touch panel and the circuit board are rectangular plates, the long sides of the touch panel and the circuit board are parallel, the wide sides of the touch panel and the circuit board are parallel, the first direction is a length direction of the rectangular plates, and the second direction is a width direction of the rectangular plates.

In some exemplary embodiments, the touch module further includes an adhesive structure, and the back surface of the touch panel is configured to be adhesively fixed to the housing of the electronic device by the adhesive structure.

In some exemplary embodiments, the touch panel has a touch area, and a projection of the touch area on the touch panel falls within a projection range of the circuit board on the touch panel.

The adhesive structure comprises a first adhesive structure, the first adhesive structure surrounds the outer side of the touch control area, and a gap is reserved between the first adhesive structure and the edge of the touch control area.

In some exemplary embodiments, the adhesive structure further comprises a second adhesive structure and a third adhesive structure, the second adhesive structure and the third adhesive structure being located on two sides of the first adhesive structure along the first direction, respectively, wherein:

at least one of the second adhesive structure and the third adhesive structure comprises a U-shaped adhesive structure with one end open, the open end of the U-shaped adhesive structure faces the first adhesive structure, and the U-shaped adhesive structure is adhered to the back edge of the touch panel; or alternatively

At least one of the second adhesive structure and the third adhesive structure comprises a U-shaped adhesive structure with one end open and a reinforcing adhesive structure, the open end of the U-shaped adhesive structure faces the first adhesive structure, the U-shaped adhesive structure is adhered to the back edge of the touch panel, and the reinforcing adhesive structure is located in the U-shaped adhesive structure.

In some exemplary embodiments, at least one of the first adhesive structure and the U-shaped adhesive structure has a width of 1mm-5mm; and/or

The touch control area is rectangular, the first adhesive structure is rectangular, the long side of the first adhesive structure is parallel to the long side of the touch control area, the distance between the long side of the first adhesive structure and the long side of the touch control area is not more than 15mm, the wide side of the first adhesive structure is parallel to the wide side of the touch control area, and the distance between the wide side of the first adhesive structure and the wide side of the touch control area is 1mm-20mm; and/or

At least one of the first adhesive structure and the U-shaped adhesive structure comprises a first adhesive matrix and first adhesive layers arranged on two end faces of the first adhesive matrix, the thickness of the first adhesive matrix is smaller than 1mm, and the Shore hardness of the first adhesive matrix is smaller than 50 degrees, or at least one of the first adhesive structure and the U-shaped adhesive structure comprises liquid silica gel, or at least one of the first adhesive structure and the U-shaped adhesive structure comprises a first adhesive layer.

In some exemplary embodiments, the reinforced adhesive structure includes a second adhesive matrix and second adhesive layers disposed on both end surfaces of the second adhesive matrix, the second adhesive matrix having a shore hardness greater than the shore hardness of the first adhesive matrix of the first adhesive structure and the U-shaped adhesive structure, and the second adhesive layer having a thickness less than 0.2mm.

In some exemplary embodiments, the touch module further includes: and the vibration device is arranged on one side of the circuit board, which is far away from the touch panel, and is electrically connected with the circuit board, and the circuit board is arranged to control the operation of the vibration device according to the touch force information detected by the sensor module.

In some exemplary embodiments, the touch module further includes a light emitting assembly including a light source mounted on a side of the circuit board facing away from the touch panel and close to an edge of the circuit board, and a light emitting side of the light source facing away from a center of the circuit board, the touch panel having a light transmitting area, and light emitted from the light source being configured to be transmitted out of the light transmitting area of the touch panel.

In some exemplary embodiments, the light emitting assembly further includes a light guide plate mounted to the circuit board, the light guide plate being configured to guide light emitted from the light source to the light transmitting region, a side of the light guide plate facing away from the light source being provided with a light shielding structure.

The embodiment of the utility model also provides electronic equipment, which comprises a shell and the touch module set in any embodiment, wherein a touch panel of the touch module set is fixed with the shell.

In some exemplary embodiments, the housing is provided with a groove, the circuit board, the sensor module and the vibration device of the touch module are accommodated in the groove, and the bottom wall of the groove is provided with an avoidance groove for avoiding the vibration device.

And a preset gap is formed between the circuit board and the bottom wall of the groove, so that when the touch force on the touch panel reaches the maximum preset touch force, the sensor module and the circuit board are not interfered with the bottom wall of the groove.

The bottom wall of the groove is provided with a limiting pad, the limiting pad is arranged on the periphery of the avoidance groove and is arranged in a dislocation mode with the sensor module, and the limiting pad is arranged to be in butt joint with the circuit board to be limited when the touch force on the touch panel is larger than the maximum preset touch force.

According to the touch module provided by the embodiment of the utility model, the dimension of the touch panel along the first direction can be extended to the opposite edges of the shell of the electronic equipment, so that the dimension of the touch panel along the first direction is basically equal to the dimension of the shell of the electronic equipment along the first direction, the touch panel and the shell of the electronic equipment are integrated in appearance, and the attractiveness of the electronic equipment such as a notebook computer is improved.

In addition, in the touch module provided by the embodiment of the utility model, the touch panel is fixed with the shell of the electronic equipment, so that the whole touch module is fixed. Compared with the technical scheme that a support is required to be additionally arranged in the prior art to fix the touch module with the support structure below the C shell, the touch module in the embodiment of the utility model directly uses the touch panel to fix with the shell of the electronic equipment, and the support is not required to be additionally arranged, so that the structure of the electronic equipment is simplified, the weight and the overall thickness of the electronic equipment are reduced, the light and thin design of the electronic equipment is met, and better experience is provided for customers. The touch module provided by the embodiment of the utility model can be assembled by directly fixing the touch panel and the shell of the electronic equipment, and has low assembly requirement and simple assembly operation.

Additional features and advantages of the utility model will be set forth in the description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

Fig. 1 is an exploded view of a touch module and a housing according to an embodiment of the utility model;

fig. 2 is a schematic cross-sectional view illustrating an assembly structure of a touch module and a housing according to an embodiment of the utility model;

fig. 3 is a schematic diagram of an assembly structure of a touch module according to an embodiment of the utility model;

fig. 4 is a schematic structural diagram of a touch panel and an adhesive structure in a touch module according to an embodiment of the utility model;

fig. 5 is an exploded view of a touch module and a housing according to another embodiment of the utility model;

fig. 6 is a schematic diagram of an assembly structure of a touch module according to another embodiment of the utility model;

fig. 7 is a schematic structural diagram of a touch module according to another embodiment of the utility model;

fig. 8 is a schematic side view of a touch module according to another embodiment of the utility model;

fig. 9 is a schematic partial view of a first assembly structure of a light emitting assembly and a circuit board of a touch module according to another embodiment of the utility model;

fig. 10 is a schematic partial view of a second assembly structure of a light emitting assembly and a circuit board of a touch module according to another embodiment of the utility model;

FIG. 11 is a schematic diagram illustrating a third assembly structure of a light emitting device and a circuit board of a touch module according to another embodiment of the utility model;

fig. 12 is a schematic partial view of a fourth assembly structure of a light emitting device and a circuit board of a touch module according to another embodiment of the utility model.

Reference numerals illustrate:

101-touch panel, 1011-touch area, 1012-light transmission area, 102-adhesive structure, 1021-first adhesive structure, 1022-second adhesive structure, 10221-U-shaped adhesive structure, 10222-reinforced adhesive structure, 1023-third adhesive structure, 10231-U-shaped adhesive structure, 10232-reinforced adhesive structure, 103-fourth adhesive structure, 104-circuit board, 1041-edge, 105-sensor module, 106-vibration device, 107-housing, 108-light source, 109-light guide plate, 110-light shielding structure, 111-groove, 112-avoidance groove, 113-limit pad, A-light and shadow overlapping area.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be arbitrarily combined with each other.

The embodiment of the utility model provides a touch module, as shown in fig. 1-2, which comprises a touch panel 101, a circuit board 104 and a sensor module 105. The touch panel 101 may be a glass material or other non-conductive material. The circuit board 104 is mounted on the back surface of the touch panel 101, and the front surface (opposite to the back surface) of the touch panel 101 is available for a user to apply a touch force.

The sensor module 105 is mounted on a side of the circuit board 104 facing away from the touch panel 101, and is electrically connected to the circuit board 104. The sensor module 105 is configured to detect touch force information (e.g., information such as the magnitude and/or location of a touch force) on the touch panel 101. The sensor module 105 may be soldered to the circuit board 104 or attached to the circuit board 104 by conductive adhesive to make electrical connection with the circuit board 104. The sensor module 105 may include force sensors, and the number of force sensors may be four, six, or other numbers according to the size design of the circuit board 104. The force sensor may be mounted on an edge of the circuit board 104 or may be disposed in a middle region of the circuit board 104. Fig. 1 shows four force sensors disposed near the edge of circuit board 104.

As shown in fig. 1, the size of the touch panel 101 in the first direction is larger than the size of the circuit board 104 in the first direction, and the size of the touch panel 101 in the first direction is set to extend to the opposite edge of the housing 107 of the electronic device, and the touch panel 101 is set to be fixed with the housing 107 of the electronic device. The housing 107 of the electronic device described herein may be a C-case, such as a notebook computer, which is the main form factor of the notebook computer and may provide structural support for a touch module, keyboard, etc.

In the touch module of the embodiment of the utility model, the dimension of the touch panel 101 along the first direction may extend to the opposite edge of the housing 107 of the electronic device, so that the dimension of the touch panel 101 along the first direction is substantially equal to the dimension of the housing 107 of the electronic device along the first direction. Compared with the prior art that the touch module is usually arranged in the middle of the C shell, the touch module is split between the touch module and the C shell in appearance, and the problem of poor aesthetic property exists.

In addition, in the touch module according to the embodiment of the utility model, the touch panel 101 is fixed to the housing 107 of the electronic device, so that the touch module is integrally fixed. Compared with the technical scheme that a support is required to be additionally arranged to fix the touch module and the support structure below the C shell in the prior art, the touch module in the embodiment of the utility model is directly fixed with the shell 107 of the electronic equipment by using the touch panel 101, the structure of the electronic equipment can be simplified without additionally arranging the support, the weight and the overall thickness of the electronic equipment can be reduced, the light and thin design of the electronic equipment can be met, and better experience is provided for customers. The touch module provided by the embodiment of the utility model can be assembled by directly fixing the touch panel and the shell of the electronic equipment, and has low assembly requirement and simple assembly operation.

In some exemplary embodiments, as shown in fig. 1, the size of the touch panel 101 in the second direction is larger than the size of the circuit board 104 in the second direction, and the first direction and the second direction are perpendicular.

In the embodiment shown in fig. 1, the touch panel 101 and the circuit board 104 are rectangular plates, the long sides of the touch panel 101 and the circuit board 104 are parallel, and the wide sides of the touch panel 101 and the circuit board 104 are parallel, the first direction is the length direction of the rectangular plates, and the second direction is the width direction of the rectangular plates.

The whole of the housing 107 of the electronic device may be rectangular and the long sides of the touch panel 101 and the housing 107 are parallel, the wide sides of the touch panel 101 and the housing 107 are parallel, the length of the touch panel 101 is greater than the length of the circuit board 104, and the width of the touch panel 101 may be slightly greater than the width of the circuit board 104 (e.g., the width of the touch panel 101 may be 4mm-10mm greater than the width of the circuit board 104 and 2mm-5mm greater on one side), so that the whole size of the touch panel 101 is greater than the whole size of the circuit board 104, so as to bond the edge of the touch panel 101 with the housing 107. The length of the touch panel 101 may be set to be substantially equal to the length of the housing 107.

It should be understood that the shapes of the touch panel 101, the circuit board 104, and the housing 107 are not limited to rectangular, but may be other shapes such as: round, regular polygon, etc. The dimensions of the touch panel 101 in the second direction and the dimensions of the circuit board 104 in the second direction may be substantially equal or unequal, for example: the size of the touch panel 101 in the second direction may be larger than the size of the circuit board 104 in the second direction.

In some exemplary embodiments, the touch module further includes a vibration device 106, and the vibration device 106 is mounted on a side of the circuit board 104 facing away from the touch panel 101 and is electrically connected to the circuit board 104. The circuit board 104 is configured to control the operation of the vibration device 106 according to the touch force information detected by the sensor module 105.

Wherein the vibration device 106 may be a motor. The center of the motor may be aligned with the center of the circuit board 104, the long sides of the motor may be parallel to the long sides of the circuit board 104, and the wide sides of the motor may be parallel to the wide sides of the circuit board 104. The motor may be adhered to the circuit board 104 by a backing adhesive and fixed by dispensing a bonding adhesive. The motor may be a linear motor, an electromagnetic motor, a piezoelectric motor, or a motor that vibrates in the X/Y/Z direction (X direction and Y direction are parallel to the surface of the touch panel 101 and perpendicular to each other; and Z direction is perpendicular to the surface of the touch panel 101). Of course, the vibration device 106 is not limited to a motor, and may be other devices capable of generating vibrations, such as: the vibration device 106 may be an electromagnetic vibration device including a coil and a magnet.

In some exemplary embodiments, as shown in fig. 1-2, the touch module further includes an adhesive structure 102, and the back surface of the touch panel 101 is configured to be adhesively fixed to a housing 107 of the electronic device by the adhesive structure 102.

The touch module sequentially stacks the touch panel 101, the circuit board 104 and the sensor module 105 along the direction perpendicular to the touch panel 101, the touch panel 101 and the circuit board 104 can be bonded and fixed through the fourth adhesive structure 103, and the touch panel 101 is bonded and fixed to the housing 107 of the electronic device through the adhesive structure 102. By attaching and bonding the touch panel 101 and the housing 107 of the electronic device, the assembly of the touch module to the housing 107 of the electronic device can be completed, so that the total thickness of the whole touch module is smaller, the requirements of lightening and thinning of the electronic device are better met, and the assembly operation of the touch module is simple.

In some exemplary embodiments, as shown in fig. 3 and 4, the adhesive structure 102 includes a first adhesive structure 1021. The touch panel 101 has a touch area 1011, and a projection of the touch area 1011 on the touch panel 101 falls within a projection range of the circuit board 104 on the touch panel 101. The user may apply a touch force on the touch area 1011, and the sensor module 105 may detect the touch force information on the touch area 1011.

The first adhesive structure 1021 surrounds the outer side of the touch region 1011, and a gap is formed between the first adhesive structure 1021 and the edge of the touch region 1011. As shown in fig. 1, the touch area 1011 may be rectangular, and the first adhesive structure 1021 may be rectangular and surround the touch area 1011.

The strength and consistency of the force signals are affected by the position of the adhesive structure 1021 relative to the touch region 1011, the width, thickness, hardness, etc. of the first adhesive structure 1021, and meanwhile, the strength and consistency of motor vibration and the center frequency of the structure are also affected, so that the touch experience of a user is further affected.

The larger the width of the adhesive structure, especially the first adhesive structure 1021, the larger the constraint on the touch region 1011, the more difficult the edge portion of the touch region 1011 will vibrate, and the weaker the vibration intensity will be. On the contrary, the narrower the width of the first adhesive structure 1021, the easier the edge portion of the touch region 1011 will vibrate, and the stronger the vibration intensity will be. However, the width of the adhesive structure cannot be too narrow due to the influence of structural stability and the like, otherwise, the stability problems such as adhesive opening and the like after long-time use can be caused. As shown in fig. 4, the width w1 of the first adhesive structure 1021 may be 1mm-5mm. The width w1 of the first adhesive structure 1021 exceeds 5mm, so that the frame is wider in appearance, thereby affecting the beauty and the touch experience of the edge portion of the touch area 1011. The width w1 of the first adhesive structure 1021 is smaller than 1mm, and the structural stability cannot be ensured.

When the touch area 1011 is rectangular, the long side of the first adhesive structure 1021 may be parallel to the long side of the touch area 1011, and the smaller the distances d3 and d4 between the two long sides of the first adhesive structure 1021 and the two long sides of the touch area 1011, the harder the edge portion of the touch area 1011 will vibrate, and the weaker the vibration intensity will be. The greater the distances d3 and d4 between the long sides of the first adhesive structure 1021 and the long sides of the touch area 1011, the easier the edge of the touch area 1011 vibrates, but after the application of force, the touch module is recovered to the original state by the resilience of the touch module, so the distances d3 and d4 between the two long sides of the first adhesive structure 1021 and the two long sides of the touch area 1011 are too large, which is not beneficial for the quick resilience of the touch module. Meanwhile, the distances d3 and d4 between the two long sides of the first adhesive structure 1021 and the two long sides of the touch area 1011 are too large, so that the energy of motor vibration will be dispersed, which is unfavorable for generating Z-direction vibration. The distances d3 and d4 between the long side of the first adhesive structure 1021 and the long side of the touch region 1011 are generally not greater than 15mm according to the size of the touch region 1011.

The width edges of the first adhesive structure 1021 may be parallel to the width edges of the touch region 1011, and the smaller the distances d5 and d6 between the two width edges of the first adhesive structure 1021 and the two width edges of the touch region 1011, the harder the edge portion of the touch region 1011 will vibrate, and the weaker the vibration intensity will be. The greater the distances d5 and d6 between the two broad sides of the first adhesive structure 1021 and the two broad sides of the touch area 1011, the easier the edge of the touch area 1011 vibrates, but after the application of force, the touch module is recovered to the original state by the resilience of the touch module, so that the too far rubberizing position (i.e. the too far distances d5 and d6 between the two broad sides and the two broad sides of the touch area 1011) is not beneficial to the quick resilience of the touch module. Meanwhile, the rubberizing position is far, and the energy of motor vibration can be dispersed, so that Z-direction vibration is not facilitated. Therefore, the distance d5, d6 between the two broad sides of the first adhesive structure 1021 and the two broad sides of the touch area 1011 may be 1mm-20mm according to the size of the touch area 1011. The line L2 is 1mm from the left edge of the touch area 1011, the line L1 is 10mm from the left edge of the touch area 1011, and one wide edge of the first adhesive structure 1021 is located between the lines L1 and L2. The line L3 is 1mm from the right edge of the touch area 1011, the line L4 is 10mm from the right edge of the touch area 1011, and the other broadside of the first adhesive structure 1021 is located between the lines L3 and L4.

The softer and thicker first adhesive structure 1021 is beneficial for motor vibration, but also results in a pressing displacement of the touch panel 101 in the applied state. In order to ensure that the touch panel 101 does not excessively collapse in appearance, the hardness and thickness of the first adhesive structure 1021 are required to satisfy certain requirements. The first adhesive structure 1021 may include a first adhesive substrate and first adhesive layers disposed on two end surfaces of the first adhesive substrate, where a thickness of the first adhesive substrate may be set to be less than 1mm, and a shore hardness of the first adhesive substrate may be set to be less than 50 degrees, for example: the first adhesive matrix may be provided as rubber, silica gel or other materials. This arrangement is advantageous in that the motor is vibrated while ensuring that the touch panel 101 does not excessively collapse in appearance.

It should be understood that the first adhesive structure 1021 may be other forms besides a double sided adhesive backing on the first adhesive substrate, such as: the first adhesive structure 1021 may be a pop-top adhesive or the like. The hardness of the first adhesive base and the thickness of the first adhesive base are not limited to those described above, and may be adjusted according to actual needs.

By adopting the scheme of gluing the first gluing structure 1021, the edge part of the touch control area 1011 is easy to vibrate, the touch control module can rebound rapidly, the motor vibration is facilitated, the structural stability of the touch control module is ensured, and the touch panel 101 does not collapse excessively.

In some exemplary embodiments, as shown in fig. 3, the first adhesive structure 1021 also surrounds the outside of the circuit board 104. In the case that the circuit board 104 is rectangular, and the first adhesive structure 1021 is rectangular, the distances between the two long sides of the first adhesive structure 1021 and the two long sides of the circuit board 104 are d7 and d8, respectively, the distances between the two wide sides of the first adhesive structure 1021 and the two wide sides of the circuit board 104 are d9 and d10, respectively, and d7, d8, d9 and d10 may be set to be greater than 0.2mm. Such as: d7, d8, d9 and d10 may be set to: d7 =4.10, d8=5.08, d9=4.82, d10=4.82.

In some exemplary embodiments, as shown in fig. 1, 3 and 4, the adhesive structure may further include a second adhesive structure 1022 and a third adhesive structure 1023, and the second adhesive structure 1022 and the third adhesive structure 1023 may be located at both sides of the first adhesive structure 1021 in the first direction, respectively.

Wherein at least one of the second adhesive structure 1022 and the third adhesive structure 1023 may include a U-shaped adhesive structure having one end opened. The second adhesive structure 1022 and the third adhesive structure 1023 may include U-shaped adhesive structures 10221 and 10231, respectively, and the open ends of the U-shaped adhesive structures 10221 and 10231 face the first adhesive structure 1021, and the U-shaped adhesive structures 10221 and 10231 are adhered to the edge of the back surface of the touch panel 101.

The edges of the back surface of the touch panel 101 can be bonded to the housing 107 of the electronic device by the U-shaped adhesive structures 10221 and 10231, and the edges of the touch panel 101 can be prevented from tilting.

In some exemplary embodiments, as shown in FIG. 4, the width W2 of the U-shaped adhesive structure is 1mm-5mm. Wherein, the width W2 of the U-shaped adhesive structure may be set to be equal to the width W1 of the first adhesive structure 1021.

The structure of the U-shaped adhesive structure may be set to be the same as that of the first adhesive structure 1021, the thickness of the first adhesive matrix of the U-shaped adhesive structure may be set to be less than 1mm, and the shore hardness of the first adhesive matrix of the U-shaped adhesive structure may be set to be less than 50 degrees.

Of course, the U-shaped adhesive structure and the first adhesive structure are not limited to the three-layer stack structure of the back adhesive (first adhesive layer) on both sides of the first adhesive substrate, but may be other forms, such as: the U-shaped adhesive structure and the first adhesive structure may also be arranged to comprise liquid silicone, or to comprise only the first adhesive layer, and not the first adhesive matrix.

In some exemplary embodiments, as shown in fig. 5 and 6, at least one of the second and third adhesive structures 1022 and 1023 may further include a reinforcing adhesive structure. The second adhesive structure 1022 and the third adhesive structure 1023 may include reinforcing adhesive structures 10222 and 10232, respectively, the reinforcing adhesive structures 10222 and 10232 are located in the U-shaped adhesive structures 10221 and 10231, respectively, and the reinforcing adhesive structures 10222 and 10232 are adhered to the back surface of the touch panel 101.

As shown in fig. 4, the touch panel 101 further has palm rest areas S1 and S2, and the palm rest areas S1 and S2 are respectively located at two sides of the touch area 1011. The palm rest areas S1, S2 may be adhesively secured to the housing 107 by the second adhesive structure 1022 and the third adhesive structure 1023, respectively. The rubberizing mode of the second adhesive structure 1022 and the third adhesive structure 1023 is not limited excessively, and the structural stability is ensured. As shown in fig. 1, 3 and 4, the U-shaped adhesive structures 10221 and 10231 may be respectively attached to the edges of the palm rest areas S1 and S2, and the middle areas of the palm rest areas S1 and S2 are not glued, and at this time, the middle areas of the palm rest areas S1 and S2 may be supported by filling a filling material with good rebound resilience between the palm rest areas S1 and S2 and the housing 107; alternatively, as shown in fig. 5 and 6, not only the U-shaped adhesive structures 10221 and 10231 may be attached to the edges of the palm rest areas S1 and S2, but also the reinforcing adhesive structures 10222 and 10232 may be attached to the middle areas of the palm rest areas S1 and S2, and the reinforcing adhesive structures 10222 and 10232 may be in the form of strips or sheets and located in the U-shaped adhesive structures 10221 and 10231, respectively. The bonding range of the second adhesive structure 1022 and the third adhesive structure 1023 on the palm rest areas S1 and S2 may be the bonding of the whole area or the bonding of the part.

If the bonding strength between the touch panel 101 and the case 107 is high, the vibrations transmitted to the palm rest areas S1, S2 are weak, and if the bonding strength is low, the vibrations transmitted to the palm rest areas S1, S2 are strong. The second adhesive structures 1022 and the third adhesive structures 1023 in the palm rest areas S1 and S2 may be an inelastic or a weak adhesive scheme, so as to reduce the transmission of the sense of Ma Dazhen to the palm rest areas S1 and S2.

The reinforced adhesive structures 10222 and 10232 may include a second adhesive substrate and second adhesive layers disposed on two end surfaces of the second adhesive substrate, and the shore hardness of the second adhesive substrate may be greater than the shore hardness of the first adhesive substrate of the first adhesive structure 1021 and the U-shaped adhesive structure, for example: the second adhesive matrix can be made of inelastic materials (such as PE, plastic and the like) or materials with weak elasticity (such as rubber with high hardness and the like), and the thickness of the second adhesive layer can be smaller than 0.2mm.

It should be understood that the material of the second adhesive matrix and the thickness of the second adhesive layer are not limited to the above, and may be adjusted according to actual needs.

In some exemplary embodiments, the first adhesive matrix of the first adhesive structure 1021 and the U-shaped adhesive structure may use rubber having a width of 2.5mm, a thickness of 0.7mm, and a Shore hardness of 20-40.

It should be noted that, for convenience in processing and installation, the first adhesive base of the first adhesive structure 1021 may be made into an integral structure or a split structure, and the first adhesive base of the U-shaped adhesive structure may be made into an integral structure or a split structure, and a portion of the first adhesive base of the first adhesive structure 1021 may be made into an integral structure with a portion of the first adhesive base of the U-shaped adhesive structure. As shown in fig. 3 and 4, the first adhesive matrix of the first adhesive structure 1021 and the two U-shaped adhesive structures may be divided into six strip structures, respectively: two stripe structures extending along the long side of the touch panel 101 and four stripe structures extending along the wide side of the touch panel 101.

In some exemplary embodiments, as shown in fig. 7 and 8, the touch module further includes a light emitting component. The light emitting assembly may include a light source 108, the light source 108 may be mounted on a side of the circuit board 104 facing away from the touch panel 101 and proximate an edge of the circuit board 104, with a light emitting side of the light source 108 facing away from a center of the circuit board 104. The touch panel 101 has a light-transmitting region 1012, and light emitted from the light source 108 is configured to be transmitted out of the light-transmitting region 1012 of the touch panel 101.

The light emitting side of the light source 108 faces away from the center of the circuit board 104, i.e., the light emitting side of the light source 108 faces toward the edge of the circuit board 104; the light-transmitting area 1012 of the touch panel 101 and the circuit board 104 may be disposed in a staggered manner, so that the circuit board 104 does not affect the light-emitting of the light-transmitting area 1012. As shown in fig. 7, two rows of light sources 108 are disposed near two wide edges of the rectangular circuit board 104, and the light-transmitting areas 1012 are disposed near the wide edges of the two sides of the circuit board 104, and the light emitted by the two rows of light sources 108 can be transmitted out from the two light-transmitting areas, respectively. By setting the light, not only the touch area 1011 can be accurately identified, but also better visual experience can be brought to the user.

The light source 108 may be a side-emitting Led such that Led lines (i.e., light emitting lines formed by Led light on the circuit board) can be emitted parallel to the circuit board 104 to the edge of the circuit board 104.

To ensure the uniformity of Led emission, a proper Led emission angle needs to be selected. The optoelectronic properties of the Led selected are shown in table 1 below.

TABLE 1

Photoelectric characteristics (Tweld=25deg.C)

Selecting the light emission angle=120 degrees, the distance between Led and the edge of the circuit board 104 can be adjusted according to this condition, so as to adjust the overlapping degree when the light reaches the edge of the circuit board 104.

As shown in fig. 9, the light emitting angle α=120 degrees of Led, the distance between Led and the edge 1041 of the circuit board 104 (the wide edge of the circuit board 104) is L1, and the distance between the centers of two adjacent Led in the same row is S, and by the cooperation of α, L1 and S, the light and shadow overlapping areas a when the light rays emitted by any two adjacent Led reach the edge 1041 of the circuit board 104 are all equal, so that the light rays reach the edge 1041 of the circuit board 104 as a result after superposition. Wherein, the following conditions are satisfied among alpha, L1 and S: tan (α/2) =s/L1.

In another case, as shown in fig. 10, the light emitting angle α=120 degrees of the Led, the distance between the Led and the edge 1041 of the circuit board 104 (the broadside of the circuit board 104) is L2, and the distance between the centers of two adjacent leds in the same row is S, and by the cooperation of α, L2 and S, the light overlapping area when the light emitted by any two adjacent leds reaches the edge 1041 of the circuit board 104 is 0, so that the light just intersects when reaching the edge 1041 of the circuit board 104, so that the light will not overlap and no dark portion will appear. Wherein, the following conditions are satisfied among alpha, L2 and S: tan (α/2) =s/(2×l2).

In some exemplary embodiments, as shown in fig. 11, the light emitting assembly may further include a light guide plate 109. The light guide plate 109 is mounted to the circuit board 104. The light guide plate 109 is provided to guide light emitted from the light source 108 to the light-transmitting region 1012 of the touch panel 101. The side-emitting Led can realize a backlight design in cooperation with the light guide plate 109. The light guide plate 109 may have an L-shape as a whole and semi-surrounds Led. The light guide plate 109 may be fixed only with the circuit board 104, or the light guide plate 109 may be fixed simultaneously with the circuit board 104 and the touch panel 101.

The boundary of the light guide plate 109 (an end surface of the light guide plate 109 away from the light source) may be flush with the edge 1041 of the circuit board 104, so that the light-shadow overlapping area when the light emitted by the Led reaches the boundary of the light guide plate 109 is 0. By controlling the refraction of light at the boundary of the light guide plate 109, the light is uniformly refracted to the back surface of the touch panel 101 and can be transmitted out from the light-transmitting region 1012.

In some exemplary embodiments, as shown in fig. 12, a light shielding structure 110 may be provided at a side of the light guide plate 109 facing away from the light source 108. The light shielding structure may be a light shielding plate disposed outside the L-shaped light guiding plate 109, and the light shielding plate may also be L-shaped. The position of the light barrier 110 is set such that the boundary of the overlapping areas of the shadows of the light rays emitted by Led are exactly up to the light barrier. Alternatively, the light shielding structure may be a light shielding film, and may be attached to or coated on the outer side surface of the L-shaped light guide plate 109.

It should be understood that the light guide plate 109 may not be provided, and only the light shielding structure 110 may be provided; alternatively, in the case where the other area of the touch panel 101 than the light-transmitting area 1012 is opaque, the light shielding structure 110 may not be provided.

The embodiment of the utility model also discloses an electronic device, as shown in fig. 1, 2 and 5, which comprises a housing 107 and the touch module described in any of the above embodiments, wherein the touch panel 101 of the touch module is fixed with the housing 107. The electronic device may be a notebook computer and the housing 107 may be a C-case. Of course, the electronic device may be other products such as a mobile phone.

In some exemplary embodiments, as shown in fig. 2, the housing 107 is provided with a groove 111, the circuit board 104 of the touch module, the sensor module 105, and the vibration device 106 may be accommodated in the groove 111, and a bottom wall of the groove 111 has an avoidance groove 112 that avoids the vibration device 106.

The escape groove 112 may penetrate the bottom wall of the recess 111 to prevent the vibration device 106 from interfering with the housing 107 when a touch force is applied to the touch panel 101. In addition, the avoiding groove 114 can effectively reduce the total thickness of the electronic equipment, and meets the requirement of lightening and thinning of the electronic equipment.

In some exemplary embodiments, as shown in fig. 2, there is a preset gap (when no touch force is applied) between the circuit board 104 and the bottom wall of the recess 111, so that when the touch force on the touch panel 101 reaches the maximum preset touch force, both the sensor module 105 and the circuit board 104 do not interfere with the bottom wall of the recess 111.

When no touch force is applied, the distance between the circuit board 104 and the bottom wall of the recess 111 may be set to d2, where d2 is set to be greater than 0mm in the maximum stress state of the touch panel 101 (i.e., the touch force reaches the maximum preset touch force), so that the circuit board 104 and the sensor module 105 mounted on the circuit board 104 do not interfere with the housing 107.

In some exemplary embodiments, as shown in fig. 2, a limiting pad 113 is disposed on the bottom wall of the groove 111, the limiting pad 113 is disposed on the periphery of the avoidance groove 112 and is staggered with the sensor module 105, the limiting pad 113 is disposed to abut against the circuit board 104 to limit when the touch force on the touch panel 101 is greater than the maximum preset touch force, so as to prevent the vibration device 106 from colliding with a structural member below the housing 107 under the condition that the touch panel 101 is stressed, and the circuit board 104 and the sensor module 105 mounted on the circuit board 104 interfere with the housing 107.

The limit pad 113 can be made of rubber with single-sided back glue. When the space in the Z direction (the thickness direction of the electronic device, perpendicular to the plate surface of the touch panel 101) is sufficient, the stopper 113 may not be provided.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by "upper", "lower", "one end", "one side", etc. are based on the directions or positional relationships shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the structure referred to has a specific direction, is configured and operated in a specific direction, and therefore, should not be construed as limiting the present utility model.

In the description of embodiments of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "assembled," and "mounted" are to be construed broadly, and for example, the term "connected" may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The described embodiments of the utility model are intended to be illustrative rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the described embodiments. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or in place of any other feature or element of any other embodiment unless specifically limited.

The present utility model includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements of the present utility model disclosed may also be combined with any conventional features or elements to form a unique solution as defined in the claims. Any feature or element of any embodiment may also be combined with features or elements from other claims to form another unique claim as defined in the claims. It is therefore to be understood that any of the features shown and/or discussed in the present utility model may be implemented alone or in any suitable combination. Accordingly, the embodiments are not to be restricted except in light of the attached claims and their equivalents. Further, various modifications and changes may be made within the scope of the appended claims.

Claims (10)

1. The touch module is characterized by comprising a touch panel, a circuit board and a sensor module, wherein the circuit board is arranged on the back surface of the touch panel, the sensor module is arranged to detect touch force information on the touch panel, and the sensor module is arranged on one side of the circuit board, which is far away from the touch panel, and is electrically connected with the circuit board;

the touch panel has a dimension in a first direction that is greater than a dimension of the circuit board in the first direction, and the touch panel is configured to extend to an opposite edge of a housing of an electronic device to which the touch panel is configured to be secured.

2. The touch module of claim 1, wherein a dimension of the touch panel along a second direction is greater than a dimension of the circuit board along the second direction, the first direction and the second direction being perpendicular;

the touch panel and the circuit board are rectangular boards, the long sides of the touch panel and the circuit board are parallel, the wide sides of the touch panel and the circuit board are parallel, the first direction is the length direction of the rectangular boards, and the second direction is the width direction of the rectangular boards.

3. The touch module of claim 1, further comprising an adhesive structure, wherein a back surface of the touch panel is configured to be adhesively secured to a housing of the electronic device by the adhesive structure.

4. A touch module according to claim 3, wherein the touch panel has a touch area, and a projection of the touch area on the touch panel falls within a projection range of the circuit board on the touch panel;

the adhesive structure comprises a first adhesive structure, the first adhesive structure surrounds the outer side of the touch control area, and a gap is reserved between the first adhesive structure and the edge of the touch control area.

5. The touch module of claim 4, wherein the adhesive structure further comprises a second adhesive structure and a third adhesive structure, the second adhesive structure and the third adhesive structure being located on two sides of the first adhesive structure along the first direction, respectively, wherein:

at least one of the second adhesive structure and the third adhesive structure comprises a U-shaped adhesive structure with one end open, the open end of the U-shaped adhesive structure faces the first adhesive structure, and the U-shaped adhesive structure is adhered to the back edge of the touch panel; or alternatively, the process may be performed,

at least one of the second adhesive structure and the third adhesive structure comprises a U-shaped adhesive structure with one end open and a reinforcing adhesive structure, the open end of the U-shaped adhesive structure faces the first adhesive structure, the U-shaped adhesive structure is adhered to the back edge of the touch panel, and the reinforcing adhesive structure is located in the U-shaped adhesive structure.

6. The touch module of claim 5, wherein the widths of the first adhesive structure and the U-shaped adhesive structure are 1mm-5mm; and/or

The touch control area is rectangular, the first adhesive structure is rectangular, the long side of the first adhesive structure is parallel to the long side of the touch control area, the distance between the long side of the first adhesive structure and the long side of the touch control area is not more than 15mm, the wide side of the first adhesive structure is parallel to the wide side of the touch control area, and the distance between the wide side of the first adhesive structure and the wide side of the touch control area is 1mm-20mm; and/or

At least one of the first adhesive structure and the U-shaped adhesive structure comprises a first adhesive matrix and first adhesive layers arranged on two end surfaces of the first adhesive matrix, the shore hardness of the first adhesive matrix is less than 50 degrees, the thickness of the first adhesive matrix is less than 1mm, or at least one of the first adhesive structure and the U-shaped adhesive structure comprises liquid silica gel, or at least one of the first adhesive structure and the U-shaped adhesive structure comprises a first adhesive layer; and/or

The reinforced adhesive structure comprises a second adhesive matrix and second adhesive layers arranged on two end faces of the second adhesive matrix, the Shore hardness of the second adhesive matrix is larger than that of the first adhesive matrix of the first adhesive structure and that of the first adhesive matrix of the U-shaped adhesive structure, and the thickness of the second adhesive layers is smaller than 0.2mm.

7. The touch module of any one of claims 1 to 6, further comprising:

the vibration device is arranged on one side of the circuit board, which is far away from the touch panel, and is electrically connected with the circuit board, and the circuit board is arranged to control the operation of the vibration device according to the touch force information detected by the sensor module; and/or

The light-emitting assembly comprises a light source, the light source is arranged on one side of the circuit board, which is away from the touch panel, and is close to the edge of the circuit board, the light-emitting side of the light source is away from the center of the circuit board, the touch panel is provided with a light-transmitting area, and light emitted by the light source can be transmitted from the light-transmitting area of the touch panel.

8. The touch module of any one of claims 1 to 6, further comprising a light emitting assembly including a light source mounted on a side of the circuit board facing away from the touch panel and proximate an edge of the circuit board, and a light emitting side of the light source facing away from a center of the circuit board, the touch panel having a light transmissive region, light emitted by the light source being configured to be transmitted out of the light transmissive region of the touch panel;

the light emitting assembly further comprises a light guide plate, the light guide plate is mounted to the circuit board, the light guide plate is arranged to guide light emitted by the light source to the light transmission area, and a shading structure is arranged on one side, deviating from the light source, of the light guide plate.

9. An electronic device, comprising a housing and the touch module according to any one of claims 1 to 8, wherein a touch panel of the touch module is fixed to the housing.

10. The electronic device of claim 9, wherein the housing is provided with a groove, the circuit board of the touch module, the sensor module and the vibration device are accommodated in the groove, and a bottom wall of the groove is provided with an avoidance groove for avoiding the vibration device;

a preset gap is formed between the circuit board and the bottom wall of the groove, so that when the touch force on the touch panel reaches the maximum preset touch force, the sensor module and the circuit board are not interfered with the bottom wall of the groove;

the bottom wall of the groove is provided with a limiting pad, the limiting pad is arranged on the periphery of the avoidance groove and is arranged in a dislocation mode with the sensor module, and the limiting pad is arranged to be in butt joint with the circuit board to be limited when the touch force on the touch panel is larger than the maximum preset touch force.