Middle plate assembly and keyboard

Through the combined structure of the sliding core, magnet, spring and middle plate base, the high cost problem caused by the separate installation of key switches in existing keyboards is solved, and the middle plate and key base are integrally formed, which reduces material and manufacturing costs and improves assembly accuracy.

CN223390404UActive Publication Date: 2025-09-26DONGGUAN IF2 ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202422403274.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-09-26
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

In existing keyboards, key switches need to be installed separately, which results in high costs and high installation precision requirements, increasing material and production costs.

Method used

It adopts a combined structure of a sliding core, a magnet, a spring and a middle plate base. The magnet is located in the cavity of the sliding core, and the spring is located between the sliding core and the middle plate base. The sliding core is buckled on the middle plate base and positioned by positioning silicone particles. The middle plate and the key base are formed as one piece.

Benefits of technology

It reduces material costs, simplifies the assembly process, improves positioning accuracy, and reduces manufacturing costs and assembly difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a middle plate assembly and a keyboard, the middle plate assembly adopts a sliding core, a magnet, a spring and a middle plate base, the magnet is arranged in a cavity of the sliding core, the spring is located between the sliding core and the middle plate base, and the sliding core is buckled on the middle plate base. According to the middle plate assembly and the keyboard, when the keyboard is manufactured, the middle plate and the key base are integrally formed, the structure is simple, and cost is saved; a key switch does not need to be independently mounted, so that the material cost is reduced; the positioning silica gel particles are adopted for positioning, positioning is accurate, the assembling difficulty is reduced, and the manufacturing cost is correspondingly reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of keys, and in particular discloses a middle plate component and a keyboard. Background Art

[0002] Traditional keyboards utilize a "keycap + key switch + midplate + key base" structure. The keycap is the visible part of the keyboard, the part that the user directly interacts with for inputting characters or executing commands. The keycap design can affect the feel and comfort of the keys. The key switch is the core component of the keyboard, located beneath the keycap. It senses the user's key presses and converts these movements into electronic signals for processing by the computer. The type and quality of the key switch directly impacts the keyboard's durability and user experience. The midplate, also known as the positioning plate, sits beneath the key switches. It provides stable support and transmits the key switch's motion to the keyboard's circuitry. The material and design of the midplate also impact the keyboard's overall performance and feel. The key base's primary function is to provide stability and support. A keyboard's key base is a crucial component, located beneath each key and providing stable support for the keycap. The design and material of the key base have a significant impact on the keyboard's overall performance and user experience. The key base not only supports the keycap but also interacts with other keyboard components (such as the support structure and magnetic components) to enable key movement and retraction. This structural design enables the keyboard to effectively convert user input into instructions that the computer can understand, while ensuring the accuracy and reliability of the input.

[0003] However, existing keyboards have the following defects:

[0004] 1. The push button switch requires a separate component to be installed on the mid-board, which is costly. In addition, due to the high installation precision requirements, poor installation may occur, and the production cost is also relatively high.

[0005] 2. Existing keyboards require separate key switches. A standard keyboard requires 108 key switches, which increases material costs accordingly.

[0006] Therefore, the above-mentioned defects of the existing keyboards are technical problems that need to be solved urgently. Utility Model Content

[0007] The utility model provides a middle plate assembly and a keyboard, aiming to solve the above-mentioned defects of the existing keyboards.

[0008] One aspect of the present invention relates to a middle plate assembly, comprising a sliding core, a magnet, a spring and a middle plate base, wherein the magnet is arranged in a cavity of the sliding core, the spring is located between the sliding core and the middle plate base, and the sliding core is buckled onto the middle plate base.

[0009] Furthermore, a slot is provided in the cavity of the sliding core, and the magnet is fixed in the slot.

[0010] Furthermore, a guide groove is provided above the middle plate base, and a guide strip matching the guide groove is correspondingly provided on the sliding core.

[0011] Furthermore, a locking position is provided on the middle plate base, and an elastic buckle that matches the locking position is correspondingly provided on the sliding core.

[0012] Furthermore, a positioning ring is provided on the middle plate base, and the magnet is placed in the positioning ring.

[0013] Furthermore, a positioning ring is provided below the sliding core, and the upper end of the magnet is clamped in the positioning ring.

[0014] Furthermore, a sensing through hole corresponding to the card slot is provided at the bottom of the middle plate base.

[0015] Another aspect of the present invention relates to a keyboard, including the above-mentioned middle plate assembly, keycaps, keyboard top cover, keyboard bottom cover and keyboard circuit board. The middle plate assembly is provided with multiple middle plate bases, and multiple sliding cores are correspondingly buckled on the multiple middle plate bases; the multiple middle plate bases are correspondingly arranged above the keyboard circuit board, the keyboard bottom cover is located below the keyboard circuit board, and the keyboard top cover and the keyboard bottom cover are detachably fixedly connected.

[0016] Furthermore, positioning silica gel particles are sleeved below the middle plate base.

[0017] Furthermore, four silicone foot pads are provided at the four corners of the keyboard bottom shell.

[0018] The beneficial effects achieved by the utility model are:

[0019] The utility model provides a mid-plate assembly and keyboard. The mid-plate assembly comprises a sliding core, a magnet, a spring, and a mid-plate base. The magnet is disposed within the cavity of the sliding core, the spring is positioned between the sliding core and the mid-plate base, and the sliding core is snapped onto the mid-plate base. The mid-plate assembly and keyboard provided by the utility model integrate the mid-plate and key base into a single piece during keyboard manufacturing, resulting in a simple structure and cost savings. Separate key switches are not required, reducing material costs. Positioning is achieved using positioning silicone particles, resulting in precise positioning, reduced assembly difficulty, and correspondingly lower manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a three-dimensional exploded structure of an embodiment of a middle plate assembly of the present invention;

[0021] Figure 2 This is a front structural diagram of an embodiment of a middle plate assembly of the present utility model;

[0022] Figure 3This is a front cross-sectional structural diagram of an embodiment of a middle plate assembly of the present utility model;

[0023] Figure 4 This is a schematic diagram of the top view of the structure of an embodiment of the middle plate assembly of the present invention;

[0024] Figure 5 This is a schematic side cross-sectional view of an embodiment of a middle plate assembly of the present invention;

[0025] Figure 6 This is a schematic diagram of the front exploded cross-sectional structure of an embodiment of the middle plate assembly of the present utility model;

[0026] Figure 7 This is a schematic diagram of the assembly structure of an embodiment of the middle plate assembly of the present utility model;

[0027] Figure 8 This is a front structural diagram of an embodiment of the keyboard of the present utility model;

[0028] Figure 9 This is a schematic diagram of the exploded structure of an embodiment of the keyboard of the present invention;

[0029] Figure 10 This is a schematic side cross-sectional view of an embodiment of the keyboard of the present invention;

[0030] Figure 11 for Figure 10 A partial enlarged schematic diagram of part A.

[0031] Description of Figure Numbers:

[0032] 10. Sliding core; 20. Magnet; 30. Spring; 40. Middle plate base; 11. Slot; 12. Guide strip; 13. Elastic buckle; 14. Positioning ring; 41. Guide groove; 42. Positioning; 43. Positioning ring; 44. Sensing hole; 100. Middle plate assembly; 50. Keycap; 60. Keyboard top cover; 70. Keyboard bottom cover; 80. Keyboard circuit board; 91. Positioning silicone particles; 92. Silicone foot pad. DETAILED DESCRIPTION

[0033] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0034] like Figure 1 and Figure 2As shown, the first embodiment of the present invention provides a mid-plate assembly, comprising a sliding core 10, a magnet 20, a spring 30, and a mid-plate base 40. The magnet 20 is disposed within the cavity of the sliding core 10, the spring 30 is located between the sliding core 10 and the mid-plate base 40, and the sliding core 10 is snapped onto the mid-plate base 40. The mid-plate assembly provided in this embodiment integrates the mid-plate and key base into an integral unit during keyboard manufacturing, resulting in a simple structure and cost savings. Separate key switches are not required, reducing material costs.

[0035] Further, see Figures 1 to 11 In the middle plate assembly provided in this embodiment, a card slot 11 is provided in the cavity of the sliding core 10, and the magnet 20 is fixed in the card slot 11. A guide groove 41 is provided above the middle plate base 40, and a guide strip 12 that cooperates with the guide groove 41 is correspondingly provided on the sliding core 10. A card position 42 is provided on the middle plate base 40, and an elastic snap 13 that cooperates with the card position 42 is correspondingly provided on the sliding core 10. A positioning ring 43 is provided on the middle plate base 40, and the magnet 20 is placed in the positioning ring 43. A positioning ring 14 is provided below the sliding core 10, and the upper end of the magnet 20 is clamped in the positioning ring 14. A sensing through hole 44 corresponding to the card slot 11 is provided at the bottom of the middle plate base 40. In this embodiment, the function of the sensing through hole 44 is to cause the magnet 20 to sense the corresponding Hall switch on the keyboard circuit board 80 when the sliding core 10 is pressed downward, thereby generating a corresponding function. In this embodiment, the magnet 20 is fixed in the slot 11 of the sliding core 10; the spring 30 is placed in the positioning ring 43 of the middle plate base 40; the upper end of the spring 30 is clamped in the positioning ring 14 of the sliding core 10; the sliding core 10 is inserted into the guide groove 41 of the middle plate base 40 through the guide bar 12, and after being pressed down, the elastic buckle 13 on the sliding core 10 is clamped into the clamping position 42 on the middle plate base 40, thereby ensuring that the sliding core 10 can slide freely in the middle plate base 40 under the action of the spring 30 to complete the work.

[0036] The present invention also provides a keyboard, including the above-mentioned middle plate assembly 100, keycaps 50, keyboard top shell 60, keyboard bottom shell 70 and keyboard circuit board 80. The middle plate assembly 100 is provided with a plurality of middle plate bases 40, and a plurality of sliding cores 10 are correspondingly buckled on the plurality of middle plate bases 40; the plurality of middle plate bases 40 are correspondingly arranged above the keyboard circuit board 80, and the keyboard bottom shell 70 is located below the keyboard circuit board 80. The keyboard top shell 60 and the keyboard bottom shell 70 are detachably fixedly connected. Positioning silica gel particles 91 are provided below the middle plate base 40. Four silica gel foot pads 92 are provided at the four corners of the keyboard bottom shell 70. The keyboard provided in this embodiment is provided with positioning silica gel particles 91 on the middle plate assembly 100, which is then placed on the keyboard bottom shell 70 and the keyboard top shell 60 is put on. The keyboard assembly is completed, and the assembly is convenient, the assembly difficulty is reduced, and the manufacturing cost is correspondingly reduced.

[0037] like Figures 1 to 11As shown, the working principle of the mid-plate assembly and keyboard provided in this embodiment is as follows:

[0038] When assembling the keyboard, first fix the magnet 20 in the slot 11 of the sliding core 10; the spring 30 is placed in the positioning ring 43 of the middle plate base 40; the upper end of the spring 30 is clamped in the positioning ring 14 of the sliding core 10; the sliding core 10 is inserted into the guide groove 41 of the middle plate base 40 through the guide bar 12, and after pressing down, the elastic buckle 13 on the sliding core 10 is clamped into the clamping position 42 on the middle plate base 40, thereby ensuring that the sliding core 10 can slide freely in the middle plate base 40 under the action of the spring 30 to complete the work.

[0039] Then, the positioning silica gel particles 91 are put on the middle plate assembly 100, and then placed on the keyboard bottom shell 70 with the keyboard circuit board 80 installed, and finally the keyboard top shell 60 is put on, and the keyboard assembly is completed.

[0040] When the keyboard is in use, when the sliding core 10 is pressed downward, the magnet 20 is prompted to sense the corresponding Hall switch on the keyboard circuit board 80, thereby generating a corresponding function.

[0041] Compared to existing technologies, the mid-plate assembly and keyboard provided in this embodiment utilize a sliding core, magnets, springs, and a mid-plate base. The magnets are located within the cavity of the sliding core, the springs are positioned between the sliding core and the mid-plate base, and the sliding core is snapped onto the mid-plate base. The mid-plate assembly and keyboard provided in this embodiment integrate the mid-plate and key base into a single piece during keyboard manufacturing, resulting in a simple structure and cost savings. Separate key switches are not required, reducing material costs. Positioning using silicone granules ensures precise positioning, easing assembly complexity and consequently lowering manufacturing costs.

[0042] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic inventive concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Clearly, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, to the extent such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to encompass such changes and modifications.

Claims

1. A mid-plate assembly, characterized in that: The invention comprises a sliding core (10), a magnet (20), a spring (30) and a middle plate base (40), wherein the magnet (20) is arranged in a cavity of the sliding core (10), the spring (30) is located between the sliding core (10) and the middle plate base (40), and the sliding core (10) is buckled onto the middle plate base (40).

2. The mid-plate assembly according to claim 1, wherein: A slot (11) is provided in the cavity of the sliding core (10), and the magnet (20) is fixed in the slot (11).

3. The mid-plate assembly according to claim 1, wherein: A guide groove (41) is provided above the middle plate base (40), and a guide strip (12) matching the guide groove (41) is correspondingly provided on the sliding core (10).

4. The mid-plate assembly according to claim 1, wherein: A latching position (42) is provided on the middle plate base (40), and an elastic latch (13) that matches the latching position (42) is correspondingly provided on the sliding core (10).

5. The mid-plate assembly according to claim 1, wherein: A positioning ring (43) is provided on the middle plate base (40), and the magnet (20) is placed in the positioning ring (43).

6. The mid-plate assembly according to claim 5, wherein: A positioning ring (14) is provided below the sliding core (10), and the upper end of the magnet (20) is clamped in the positioning ring (14).

7. The mid-plate assembly according to claim 2, wherein: The bottom of the middle plate base (40) is provided with a sensing through hole (44) corresponding to the card slot (11).

8. A keyboard, characterized in that: The invention comprises a middle plate assembly (100), a keycap (50), a keyboard top cover (60), a keyboard bottom cover (70) and a keyboard circuit board (80) as claimed in any one of claims 1 to 7, wherein the middle plate assembly (100) is provided with a plurality of middle plate bases (40), and a plurality of the sliding cores (10) are correspondingly buckled on the plurality of the middle plate bases (40); a plurality of the keycaps (50) are correspondingly arranged above the plurality of the sliding cores (10), a plurality of the middle plate bases (40) are correspondingly arranged above the keyboard circuit board (80), the keyboard bottom cover (70) is located below the keyboard circuit board (80), and the keyboard top cover (60) and the keyboard bottom cover (70) are detachably fixedly connected.

9. The keyboard according to claim 8, wherein Positioning silica gel particles (91) are sleeved below the middle plate base (40).

10. The keyboard according to claim 8, wherein Four silicone pads (92) are provided at the four corners of the keyboard bottom shell (70).