Novel separating type linear motor of touch panel

Abstract

The invention discloses a novel separating type linear motor for a touch panel, belongs to the technical field of linear motors, and aims to solve the problems that the overall thickness of a motor is too high, the development direction that an existing touch panel is lighter and thinner cannot be met, and when a motor shell is damaged, poor vibration sense or abnormal vibration noise is likely to occur. Comprising a glass cover plate, a touchpad, motor gum, a vibration motor and fixing screws, the touchpad is attached to the back side of the glass cover plate, and a pressure sensing element is arranged on the touchpad and electrically connected with the vibration motor through an IC control chip; according to the novel separation type linear motor of the touch panel, a shell of the linear motor is omitted, the overall thickness of the motor is reduced, the integrated linear motor is divided into two independent bodies, namely the motor stator and the motor rotor, the risk that the motor rotor and the shell interfere with each other and collide with each other is effectively eradicated, and research and development of the light and thin touch panel are better facilitated; and the vibration is safer and more reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of linear motors, and in particular relates to a novel separated linear motor for a touch panel. Background Art

[0002] The touchpad is a built-in input device of a laptop computer. It has a capacitive surface. You can draw lines on it with your fingers to simulate the movement of a mouse. You can click on the left, middle, and right buttons in the lower half of the touchpad to achieve the same functions as the left and right buttons on a mouse.

[0003] Click functions are mostly divided into two types:

[0004] 1. Click Pad mechanical linkage presses the spring switch to achieve the click function;

[0005] 2.2. Force Pad pressure sensing and motor vibration feedback to achieve click function.

[0006] In recent years, brand customers have been looking for lighter and thinner module products. Reducing the thickness can make room for batteries in the entire machine and increase the battery capacity.

[0007] Currently, most Force Pad touchpads on the market use an integrated linear motor. The stator and mover of the motor are wrapped inside a metal shell to form a complete individual. At the same time, in order to prevent collision between the shell and the mover during vibration, sufficient gaps are generally reserved, resulting in a relatively high overall thickness of the motor, which cannot meet the current development direction of thinner and lighter touchpads.

[0008] The current integrated linear motor has the following defects:

[0009] (1) The existing integrated linear motor has a relatively high overall thickness, which cannot meet the current trend of thinner and lighter touch panels.

[0010] (2) When the motor housing of the existing integrated linear motor is damaged, it is easy to have poor vibration or abnormal vibration sound.

[0011] Therefore, a new type of separate linear motor for touch panels is needed to solve the problems in the prior art that the overall thickness of the motor is relatively high, which cannot meet the current development trend of thinner and lighter touch panels, and when the motor housing is damaged, it is easy to have poor vibration or abnormal vibration sound. Summary of the invention

[0012] The object of the present invention is to provide a novel separated linear motor for a touch panel to solve the problems raised in the above background technology.

[0013] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a new type of separate linear motor for a touch panel, including a glass cover, a touch panel, a motor adhesive, a vibration motor and fixing screws, wherein the touch panel is attached to the back side of the glass cover, and a pressure sensing element is provided on the touch panel and is electrically connected to the vibration motor through an IC control chip.

[0014] The vibration motor is divided into a motor stator and a motor mover. The motor stator is adhered to the surface of the touch panel by means of motor adhesive. The motor mover is arranged corresponding to the motor stator and is fixedly connected to the touch panel by means of fixing screws. Matching fixing holes are arranged on the touch panel corresponding to the fixing screws.

[0015] It should be noted in the solution that the motor stator includes a base, an FPC and a coil. The base is adhered to the surface of the touch panel by double-sided tape, one end of the FPC is welded to the coil, and the other end is welded to the touch panel.

[0016] It is further worth mentioning that the base is made of PI plastic material and is used to support the FPC and the coil.

[0017] It should be further explained that the coil generates an induced magnetic field through electric current.

[0018] As a preferred embodiment, the motor mover includes a permanent magnet, a counterweight and a plastic cover, and the permanent magnet and the counterweight are supported and mounted on the plastic cover. The plastic cover has two U-shaped elastic arms extending on both sides of the vibration direction, and mounting holes are provided at the ends of the U-shaped elastic arms. The plastic cover fixes the motor mover on the touch panel by matching the mounting holes with fixing screws and fixing holes.

[0019] As a preferred embodiment, a plurality of permanent magnets are provided.

[0020] As a preferred implementation, the permanent magnet and the counterweight are fixedly mounted on the plastic upper cover by glue dispensing or insert injection molding.

[0021] As a preferred implementation, the U-shaped elastic arm is adhered to the touch panel by glue.

[0022] Compared with the prior art, the novel separated linear motor for the touch panel provided by the present invention has at least the following beneficial effects:

[0023] (1) The new separated linear motor of the touch panel reduces the overall thickness of the motor by eliminating the outer shell of the linear motor, and splits the integrated linear motor into two separate units, the motor stator and the motor mover, which effectively eliminates the risk of interference and collision between the motor mover and the outer shell, is more conducive to the development of lightweight touch panels, and the vibration is safer and more reliable.

[0024] (2) The touchpad has a new type of separate linear motor. The upper cover of the motor mover is changed from metal to plastic. The motor mover is locked together with the touchpad through U-shaped elastic arms on both sides of the plastic upper cover. The U-shaped elastic arms can not only fix the position of the mover, but also maintain the vibrability of the mover and transmit the vibration force to the touchpad, causing the touchpad to vibrate and feedback the pressing vibration to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the back view of the touch panel of the present invention;

[0026] Figure 2 It is a schematic diagram of the exploded view of the touch panel of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the vibration motor of the present invention;

[0028] Figure 4 It is a schematic diagram of the disassembled structure of the vibration motor of the present invention;

[0029] Figure 5 This is a first principle schematic diagram of the motor movement direction of the present invention;

[0030] Figure 6 It is a second principle schematic diagram of the motor movement direction of the present invention.

[0031] In the figure: 1. Glass cover; 2. Touch panel; 201. Fixing hole; 3. Motor adhesive; 4. Vibration motor; 41. Motor stator; 411. Base; 412. FPC; 413. Coil; 42. Motor mover; 421. Permanent magnet; 422. Counterweight; 423. Plastic cover; 4231. U-shaped elastic arm; 4232. Mounting hole; 5. Fixing screws. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] See also Figure 1-6 The present invention provides a new type of separate linear motor for a touch panel, including a glass cover plate 1, a touch panel 2, a motor adhesive 3, a vibration motor 4 and a fixing screw 5. The touch panel 2 is attached to the back side of the glass cover plate 1. A pressure sensing element is provided on the touch panel 2 and is electrically connected to the vibration motor 4 through an IC control chip.

[0034] Further Figure 2 , Figure 3 and Figure 4 As shown, it is worth explaining in detail that the vibration motor 4 is divided into a motor stator 41 and a motor mover 42. The motor stator 41 is adhered to the surface of the touch panel 2 through the motor adhesive 3. The motor mover 42 is arranged corresponding to the motor stator 41 and is fixedly connected to the touch panel 2 through the fixing screws 5. A matching fixing hole 201 is arranged on the touch panel 2 corresponding to the fixing screws 5.

[0035] By splitting the vibration motor 4 into a motor stator 41 and a motor mover 42, and connecting them to the touch panel 2 through the motor adhesive 3 and the fixing screws 5 respectively, the modularization of the structure is achieved. This design makes it easier to assemble and disassemble the various components, thereby simplifying the production and maintenance process. If a component fails, it can be replaced individually without replacing the entire component, thereby reducing maintenance costs. The precise alignment and fixation of the motor stator 41 and the motor mover 42 ensure that the vibration motor 4 can produce a stable and efficient vibration effect when working. This design helps to improve the tactile feedback of the touch panel, allowing users to obtain a more realistic and delicate touch during operation, while improving the response speed of the device.

[0036] According to the above working process, it can be known that the new separate linear motor of the touch panel reduces the overall thickness of the motor by eliminating the outer shell of the linear motor, and splits the integrated linear motor into two separate entities, the motor stator 41 and the motor mover 42, which effectively eliminates the risk of interference and collision between the motor mover 42 and the outer shell, is more conducive to the research and development of lightweight touch panels, and the vibration is safer and more reliable.

[0037] Further Figure 4 , Figure 5 and Figure 6 As shown, it is worth explaining in detail that the motor stator 41 includes a base 411, an FPC 412 and a coil 413. The base 411 is adhered to the surface of the touch panel 2 by double-sided tape. One end of the FPC 412 is welded to the coil 413, and the other end is welded to the touch panel 2. The base 411 is made of PI plastic material and is used to carry the FPC 412 and the coil 413. The coil 413 generates an induced magnetic field through electric current.

[0038] After the coil 413 and the FPC 412 are welded together, they are glued and fixed on the base 411 to form a complete motor stator 41, and are glued and fixed on the surface of the touch panel 2 by double-sided tape. The coil 413 is one of the core components of the motor stator 41. It generates an induced magnetic field through electric current. When the current passes through the coil 413, a magnetic field is generated around the coil 413. This magnetic field interacts with other magnetic fields in the motor mover 42 to generate a rotational force or a driving force.

[0039] Further Figure 4 , Figure 5 and Figure 6 As shown, it is worth explaining in detail that the motor mover 42 includes a permanent magnet 421, a counterweight 422 and a plastic cover 423. The permanent magnet 421 and the counterweight 422 are supported and mounted on the plastic cover 423. The plastic cover 423 extends two U-shaped elastic arms 4231 on both sides in the vibration direction. A mounting hole 4232 is provided at the end of the U-shaped elastic arm 4231. The plastic cover 423 matches the fixing screws 5 and the fixing holes 201 through the mounting holes 4232 to fix the motor mover 42 on the touch pad 2. A plurality of permanent magnets 421 are provided. The permanent magnet 421 and the counterweight 422 are fixedly mounted on the plastic cover 423 by dispensing or insert injection molding, and the U-shaped elastic arm 4231 is adhered to the touch pad 2 by glue.

[0040] The permanent magnet 421 and the counterweight 422 are fixed inside the plastic cover 423. The fixing methods include: 1. Gluing, gluing the counterweight 422 and the permanent magnet 421 inside the groove of the plastic cover 423 by glue; 2. Insert injection molding, directly molding the plastic cover 423 into a whole, forming a complete motor mover 42, and in the vibration direction of the motor, two U-shaped elastic arms 4231 extend from both sides of the plastic cover 423 of the motor mover 42, and the motor mover 42 is The end of the U-shaped elastic arm 4231 is fixed on the touchpad 2, and the fixing methods thereof can be: 1. Screw locking, two nuts are welded on the touchpad 2, and the motor mover 42 is fixed on the touchpad 2 with two fixing screws 5; 2. Gluing, the end of the U-shaped elastic arm 4231 of the motor mover 42 is glued to the touchpad 2 with glue. When the motor mover 42 vibrates, the vibration force is transmitted to the touchpad 2 through the U-shaped elastic arm 4231, causing the touchpad 2 to vibrate and feedback the pressing vibration to the user.

[0041] During use, when the upper surface of the Force Pad touchpad 2 is pressed, the pressure sensing element of the Force Pad touchpad 2 generates an induced voltage which is transmitted to the IC control chip. The IC control chip controls the current to pass through the FPC 412 into the coil 413 conductor, thereby generating a magnetic field around the coil 413, which generates a force with the external magnetic field generated by the permanent magnet 421 on the motor mover 42, and controls the size and direction of the magnetic field generated by the coil 413 conductor by changing the direction and size of the current to control the size and direction of the magnetic field generated by the coil 413 conductor, thereby controlling the position and motion state of the motor mover 42, thereby realizing linear motion. Two U-shaped elastic arms 4231 extend from both sides of the motor mover 42, and the ends of the U-shaped elastic arms 4231 are fixed to the touchpad 2 by fixing screws 5, so as to transmit the vibration force to the touchpad 2, drive the touchpad 2 to vibrate and feedback the pressing vibration to the user.

[0042] The scheme has the following working process: when the device is used, the coil 413 and the FPC 412 are glued and fixed on the base 411 to form a complete motor stator 41, and the motor stator 41 is glued and fixed on the surface of the touch pad 2 by the motor adhesive 3. The permanent magnet 421 and the counterweight block 422 are directly injection-molded into one piece on the plastic cover 423 through the process of dispensing or insert injection molding to form a motor mover 42. Two U-shaped elastic arms 4231 extend from both sides of the motor mover 42. The ends of the U-shaped elastic arms 4231 are fixed together on the touch pad 2 through the fixing holes 201 through the mounting holes 4232 and the fixing screws 5. When the upper surface of the Force Pad touch pad 2 is pressed, the Force Pad 2 The pressure sensing element of the Pad touch panel 2 generates an induced voltage which is transmitted to the IC control chip. The IC control chip controls the current to enter the coil 413 conductor through the FPC412, thereby generating a magnetic field around the coil 413, and generating a force with the external magnetic field generated by the permanent magnet 421 on the motor mover 42, and by changing the direction and magnitude of the current, controlling the magnitude and direction of the magnetic field generated by the coil 413 conductor, the position and motion state of the motor mover 42 are controlled, thereby realizing linear motion. Two U-shaped elastic arms 4231 extend from both sides of the motor mover 42, and the ends of the U-shaped elastic arms 4231 are fixed to the touch panel 2 by fixing screws 5, so as to transmit the vibration force to the touch panel 2, drive the touch panel 2 to vibrate and feedback the pressing vibration to the user.

[0043] In summary: the new type of separate linear motor of the touchpad reduces the overall thickness of the motor by eliminating the outer shell of the linear motor, and splits the integrated linear motor into two separate entities, the motor stator 41 and the motor mover 42, which effectively eliminates the risk of interference and collision between the motor mover 42 and the outer shell, is more conducive to the development of lightweight touchpads, and the vibration is safer and more reliable; the upper cover of the motor mover 42 is changed from metal to plastic, and the motor mover 42 is locked together with the touchpad 2 through the U-shaped elastic arms 4231 on both sides of the plastic upper cover 423, which not only fixes the position of the motor mover 42, but also the U-shaped elastic arms 4231 can maintain the vibrability of the motor mover 42 and transmit the vibration force to the touchpad 2, driving the touchpad 2 to vibrate and feedback the pressing vibration to the user.

[0044] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0045] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A novel separated linear motor for a touch panel, comprising a glass cover (1), a touch panel (2), a motor adhesive (3), a vibration motor (4) and fixing screws (5), characterized in that: The touch panel (2) is attached to the back side of the glass cover plate (1), and a pressure sensing element is provided on the touch panel (2) and is electrically connected to the vibration motor (4) via an IC control chip; The vibration motor (4) is divided into a motor stator (41) and a motor mover (42); the motor stator (41) is adhered to the surface of the touch panel (2) by means of a motor adhesive (3); the motor mover (42) is arranged corresponding to the motor stator (41) and is fixedly connected to the touch panel (2) by means of fixing screws (5); and matching fixing holes (201) are arranged on the touch panel (2) corresponding to the fixing screws (5).

2. The novel separated linear motor for a touch panel according to claim 1, characterized in that: The motor stator (41) comprises a base (411), an FPC (412) and a coil (413); the base (411) is adhered to the surface of the touch panel (2) by means of double-sided adhesive; one end of the FPC (412) is welded to the coil (413) and the other end is welded to the touch panel (2).

3. The novel separated linear motor for a touch panel according to claim 2, characterized in that: The base (411) is made of PI plastic material and is used to carry the FPC (412) and the coil (413).

4. The novel separated linear motor for a touch panel according to claim 3, characterized in that: The coil (413) generates an induced magnetic field through the electric current.

5. The novel separated linear motor for a touch panel according to claim 4, characterized in that: The motor mover (42) comprises a permanent magnet (421), a counterweight (422) and a plastic upper cover (423); the permanent magnet (421) and the counterweight (422) are supported and mounted on the plastic upper cover (423); the plastic upper cover (423) extends two U-shaped elastic arms (4231) on both sides in the vibration direction; the ends of the U-shaped elastic arms (4231) are provided with mounting holes (4232); the plastic upper cover (423) is fixedly mounted on the touch panel (2) by matching the mounting holes (4232) with fixing screws (5) and fixing holes (201).

6. The novel separated linear motor for a touch panel according to claim 5, characterized in that: A plurality of permanent magnets (421) are provided.

7. The novel separated linear motor for a touch panel according to claim 6, characterized in that: The permanent magnet (421) and the counterweight (422) are fixedly mounted on the plastic upper cover (423) by glue dispensing or insert injection molding.

8. The novel separated linear motor for a touch panel according to claim 7, characterized in that: The U-shaped elastic arm (4231) is adhered to the touch panel (2) by glue.

Images