Optical mouse

Abstract

The present invention discloses an optical mouse, which includes a mouse lower cover provided with a central through hole and an optical module installed on the mouse lower cover. The mouse lower cover is provided with a directional elastic plate, and the optical module is installed on the directional elastic plate. The optical module can move up and down relative to the mouse lower cover. Under the action of its own weight and the downward tension of the directional elastic plate, the optical module is always in a trend of overflowing out of the mouse lower cover. The optical mouse of the present application changes the displacement distance between the optical lens and the mouse use surface (such as a mouse pad) through the directional elastic plate, so that the mouse can maintain a stable light-gathering effect when the mouse use surface is uneven or the force is uneven, preventing the mouse from suddenly malfunctioning and having a better control effect. At the same time, the directional elastic plate of this structure can only perform directional up and down movements and will not move left and right, forward and backward, ensuring the stability of the mouse. The components of the present application are fixed tightly to each other, and the installation operation is simple, which is convenient for popularization and use.

Description

Technical Field

[0001] The present invention relates to a mouse device, and more particularly to an optical mouse. Background Art

[0002] The principle of an optical mouse is that a light source is guided and reflected into a light guide device, then reflected back to the bottom of the light guide device and then back to an optical sensor at a focusing point to record the movement action, so as to capture different images of the moving position. When the mouse moves, the sensor continuously captures the surface of the object and uses digital signal processing to compare each image to determine the distance and direction of movement.

[0003] It can be seen that light is introduced from the top to the bottom and then from the bottom to the top. When using the mouse, it often encounters uneven desktops or mouse pads, or light leakage occurs during the secondary reflection due to excessive hand movement. The optical lens of the existing mouse lower cover is usually fixedly installed. When the mouse encounters an uneven mouse use surface or the force applied to the mouse is uneven, the relative displacement between the optical lens and the mouse use surface becomes longer, and the light focusing changes, resulting in poor stability and controllability during the operation of the mouse. Summary of the Invention

[0004] In view of the above problems, the present invention aims to provide an optical mouse with stable light focusing, enabling the mouse to still be stably used on an uneven surface.

[0005] To achieve the technical purpose, the solution of the present invention is: an optical mouse, including a mouse lower cover provided with a central through hole and an optical module installed on the mouse lower cover. The mouse lower cover is provided with a directional elastic plate, and the optical module is installed on the directional elastic plate. The optical module can move up and down relative to the mouse lower cover, and the optical module is always in a tendency to overflow out of the mouse lower cover under the action of its own weight and the downward tension of the directional elastic plate.

[0006] Preferably, the optical module is composed of an optical lens unit, an optical chip unit, and an electrical connection member installed in an upper cover of the module and a lower cover of the module. The lower cover of the module is provided in the central through hole of the mouse lower cover, and a light transmission hole is provided in the middle of the lower cover of the module. The optical lens unit is correspondingly provided above the light transmission hole of the lower cover of the module. The optical lens unit is also connected to an electrical connection member and an optical chip unit. An installation hole is further opened in the middle of the directional elastic plate, and the lower cover of the module is fixed to the installation hole so that the entire optical module is installed on the directional elastic plate.

[0007] Preferably, the directional elastic plate is an elastic steel plate, and at least one hollow groove is opened on the steel plate.

[0008] Preferably, there are two hollow grooves, and the two hollow grooves are U-shaped grooves in two opposite directions and of different sizes.

[0009] Preferably, the directional elastic plate is provided with positioning holes, and the mouse lower cover is provided with positioning posts matching the positioning holes.

[0010] Preferably, the lower cover of the module and the directional elastic plate are matched through limiting holes and limiting posts.

[0011] Preferably, the bottom edge of the lower cover of the module is provided with a protrusion, and the protrusion hooks the periphery of the bottom of the through hole of the mouse lower cover.

[0012] Preferably, wear-resistant foot pads are pasted around the bottom of the light-transmitting hole of the lower cover of the module.

[0013] Preferably, wear-resistant sheets are provided around the mouse lower cover.

[0014] Preferably, one end of the electrical connection member is provided with a pin extending out of the mouse lower cover.

[0015] The beneficial effects of the present invention are as follows: The optical mouse of the present application changes the displacement distance between the optical lens and the mouse use surface (such as a mouse pad) through the directional elastic plate, so that the mouse can maintain a stable light-gathering effect on the uneven mouse use surface or when the force is uneven, preventing the mouse from suddenly malfunctioning and having a better control effect; at the same time, the directional elastic plate with this structure can only move directionally up and down, and will not move left and right or back and forth, ensuring the stability of the mouse. The components of the present application are fixed tightly to each other, and the installation operation is simple, which is convenient for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is an exploded view of the present invention;

[0018] Figure 3 is a schematic partial structural diagram of the present invention;

[0019] Figure 4 is a bottom view of the combined state of the mouse lower cover of the present invention;

[0020] Figure 5 is a schematic structural diagram of the directional elastic plate of the present invention;

[0021] Figure 6 is a schematic structural diagram of the lower cover of the module of the present invention;

[0022] Figure 7 is a schematic structural diagram of the mouse lower cover of the present invention.

[0023] Wherein:

[0024] 10. Optical module, 101. Optical lens, 102. Electrical connection member, 103. Optical chip, 104. Pin;

[0025] 20. Mouse lower cover, 21. Through hole, 22. Positioning post, 23. Wear-resistant piece;

[0026] 30. Module lower cover, 31. Light-transmitting hole, 32. Wear-resistant foot pad, 33. Limit post, 34. Protrusion;

[0027] 40. Directional elastic plate, 41. Hollow groove, 42. Mounting hole, 43. Positioning hole, 44. Limit hole;

[0028] 50. Module upper cover. Specific embodiments

[0029] The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

[0030] As Figure 1-7 shown, the specific embodiment of the present invention is an optical mouse, which includes a mouse lower cover 20 provided with a central through hole and an optical module 10 installed on the mouse lower cover. The mouse lower cover 20 is provided with a directional elastic plate 40, and the optical module 10 is installed on the directional elastic plate 40. The optical module 10 can move up and down relative to the mouse lower cover 20. Under the action of its own weight and the downward tension of the directional elastic plate 40, the optical module 10 is always in a trend of overflowing outward from the mouse lower cover 20, so that the optical module always maintains a similar distance from the mouse use surface (such as a mouse pad) (such as being always in contact with the mouse pad), and the light collection will not change due to the undulation of the mouse, making the mouse positioning more accurate.

[0031] The optical module 10 is composed of an optical lens unit 101, an optical chip unit 102, and an electrical connection member 103 installed in a module upper cover 50 and a module lower cover 30. The module lower cover 30 is provided in the central through hole of the mouse lower cover 20. A light-transmitting hole 31 is provided in the middle of the module lower cover 30. The optical lens unit 101 is correspondingly provided above the light-transmitting hole 31 of the module lower cover 30. The light source passes through the light-transmitting hole 31 of the module lower cover 30 and the through hole 21 of the mouse lower cover in sequence to reach the mouse use surface (such as a mouse pad) and then be reflected back. The optical lens unit 101 is also connected to an electrical connection member 103 and an optical chip unit 102. An installation hole 42 is also opened in the middle of the directional elastic plate 40, and the module lower cover 30 is fixed to the installation hole 42 so that the entire optical module 10 is installed on the directional elastic plate 40.

[0032] The directional elastic plate 40 is an elastic steel plate, and at least one hollow groove 41 is opened on the steel plate, so that the directional elastic plate has a downward tension, as Figure 5As shown, in the present embodiment, two hollow grooves 41 are used. The two hollow grooves 41 are two U-shaped grooves in opposite directions and of different sizes. When the mouse encounters an uneven surface or is tilted upward, the directional spring plate 40, under the action of its own gravity and the module lower cover 30, the U-shaped grooves on the directional spring plate 40 are staggered to form a spring structure with downward tension, and the optical module 10 installed on the module lower cover 30 also moves downward. When the mouse changes from tilting upward to being horizontal, the spring structure formed by the U-shaped groove is compressed back to its original position by the module lower cover 30 and returns to being horizontal, so that the optical lens and the optical chip always maintain a close distance from the mouse usage surface (such as a mouse pad), and the focusing will not change due to the ups and downs of the mouse, making the mouse positioning more accurate; more importantly, the directional spring plate of this structure can only move up and down in a directional manner, and will not move left and right, forward and backward, thereby ensuring the stability of the mouse.

[0033] In order to ensure that the directional spring plate is tightly fixed to the mouse lower cover, a positioning hole 43 is provided on the directional spring plate 40, and a positioning column 22 matching the positioning hole 43 is provided on the mouse lower cover 20. Through the matching and fixation between the positioning hole 43 and the positioning column 22, the four corners of the directional spring plate are stably fitted on the mouse lower cover.

[0034] The module lower cover 30 and the directional spring plate 40 are matched through the limiting holes 44 and the limiting columns 33. The module lower cover in this embodiment is provided with a limiting column 33, and a limiting hole 44 is provided in the middle of the mounting hole 42 of the directional spring plate, and the two are engaged. Of course, limiting holes can also be provided on the module lower cover, and limiting columns can be provided on the directional spring plate, which can also achieve the function of matching the module lower cover with the directional spring plate.

[0035] In order to make the module lower cover match the mouse lower cover, a protrusion 34 is provided on the bottom edge of the module lower cover 30 , and the protrusion 34 hooks around the bottom of the through hole 21 of the mouse lower cover 20 .

[0036] In order to prevent the module lower cover from being damaged during use, wear-resistant foot pads 32 are attached around the bottom of the light-transmitting hole 31 of the module lower cover 30, which not only blocks the contact between the module lower cover and the desktop, but also increases the friction with the mouse usage surface (such as a mouse pad). At the same time, the mouse lower cover 20 is also provided with a non-slip design of wear-resistant sheets 23 around it. The module lower cover 30 is also provided with a module upper cover 50 for dust prevention.

[0037] In order to facilitate the connection of the internal module circuit of the mouse, one end of the electrical connector 11 is provided with a pin 104 extending out of the mouse lower cover 20, and the front part of the electrical connector away from the pin is covered in the module upper cover.

[0038] The present application provides an optical mouse. A directional elastic plate is provided inside the mouse module. The directional elastic plate is installed on the lower cover of the module. At the same time, an optical module for receiving and emitting optical signals is installed on the lower cover of the module. The optical module moves up and down relative to the mouse lower cover under the elastic action of the directional elastic plate. Specifically, the directional elastic plate is an elastic steel plate, and two hollow slots are opened on the steel plate. The two hollow slots are U-shaped slots in two opposite directions and of different sizes. Under the action of its own gravity and the gravity of the module lower cover, the directional elastic plate forms a spring structure, so that the directional elastic plate has a buffering effect of stretching and compression. When the mouse is lifted and lowered over a short distance, the optical module always maintains a similar distance from the mouse use surface (such as a mouse pad), and the light focusing effect is stable.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any minor modifications, equivalent replacements, and improvements made to the above embodiments based on the technical essence of the present invention shall be included in the protection scope of the technical solution of the present invention.

Claims

1. An optical mouse, comprising a mouse lower cover provided with a central through hole and an optical module installed on the mouse lower cover, Characterized in that, The mouse lower cover is provided with a directional elastic plate, and the optical module is installed on the directional elastic plate; the directional elastic plate is an elastic steel plate, and two hollow-out grooves are opened on the steel plate, and the two hollow-out grooves are U-shaped grooves in two opposite directions and different sizes; the optical module can move up and down relative to the mouse lower cover, and the optical module is always in a tendency to overflow out of the mouse lower cover under the action of its own weight and the downward tension of the directional elastic plate.

2. The optical mouse according to claim 1, Characterized in that, The optical module is composed of an optical lens unit, an optical chip unit and an electrical connection member installed in an upper module cover and a lower module cover. The lower module cover is arranged in the central through hole of the mouse lower cover, and a light-transmitting hole is provided in the middle of the lower module cover. The optical lens unit is correspondingly arranged above the light-transmitting hole of the lower module cover. The optical lens unit is also connected with an electrical connection member and an optical chip unit. An installation hole is also opened in the middle of the directional elastic plate, and the lower module cover is fixed to the installation hole so that the entire optical module is installed on the directional elastic plate.

3. The optical mouse according to claim 1, Characterized in that: Positioning holes are provided on the directional elastic plate, and positioning posts matching the positioning holes are provided on the mouse lower cover.

4. The optical mouse according to claim 2, Characterized in that: The lower module cover and the directional elastic plate are matched through a limiting hole and a limiting post.

5. The optical mouse according to claim 2, Characterized in that: A protrusion is provided at the bottom edge of the lower module cover, and the protrusion hooks the periphery of the bottom of the through hole of the mouse lower cover.

6. The optical mouse according to claim 2, Characterized in that: Wear-resistant foot pads are pasted around the bottom of the light-transmitting hole of the lower module cover.

7. The optical mouse according to claim 1, Characterized in that: Wear-resistant sheets are provided around the mouse lower cover.

8. The optical mouse according to claim 2, Characterized in that: One end of the electrical connection member is provided with a pin extending out of the mouse lower cover.

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