Key structure and ultrasonic keyboard device

Abstract

The utility model discloses a key structure and an ultrasonic keyboard device, and relates to the field of ultrasonic keyboard devices. The key structure comprises a key and an elastic key module, the key comprises a key cap and a key body, the key cap corresponds to a guide hole in the mounting shell, the key cap is slidably mounted in the guide hole, the key body corresponds to the elastic key module, an adaptive part is arranged at one end, close to the elastic key module, of the key body, and the elastic key module is slidably mounted in the adaptive part. The adaptive part is suitable for being in sliding configuration with the elastic key module; according to the utility model, the key cap of the key is guided through the guide hole, and the adaptive part of the key body and the elastic key module are guided in a sliding manner, so that the guide limiting effect on the elastic key module triggered by the key is enhanced, the guide contact is sufficient when the key is input, and the key is prevented from being damaged when a force is applied to the central area or the edge area of the key. The key can move along the expected direction, so that the risk of jamming is effectively reduced, the reset capability of the elastic key module is ensured, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the field of keyboards, in particular to a key structure and an ultrasonic keyboard device. Background Art

[0002] Ultrasound equipment is usually used in clinical diagnosis and treatment. It provides image analysis conditions for doctors to accurately understand the patient's condition, formulate medical plans, and assist in treatment. Ultrasound equipment is generally equipped with a keyboard for inputting operation control information. The input adjustment of the ultrasound equipment is realized by operating the keyboard.

[0003] However, the existing ultrasonic keyboard has the risk of jamming, and the button resetting is inconvenient, which reduces the user experience. Utility Model Content

[0004] In order to solve the technical problems raised by the above background technology, the utility model provides a key structure, including:

[0005] A key and an elastic key module, wherein the key comprises a key cap and a key body connected to each other, the key cap and a guide hole on the mounting housing are arranged correspondingly, and the key cap can be slidably mounted in the guide hole;

[0006] The key body is arranged corresponding to the elastic key module, and the key body (22) is used to trigger the elastic key module; an adaptor is provided at one end of the key body close to the elastic key module, and the adaptor is suitable for slidingly configuring with the elastic key module.

[0007] Optionally, a boss portion is provided on the mounting shell, the boss portion protrudes from the upper end surface of the mounting shell away from the elastic key module, and the boss portion is arranged around the upper end of the guide hole to extend the guide length of the sliding between the guide hole and the keycap.

[0008] Optionally, the key body further includes a firing part, the firing part and the adapter part are fixedly connected, the firing part is arranged in the adapter part, and the firing part and the elastic key module are abutted.

[0009] Optionally, the keycap includes a force-applying portion and a limiting portion, the force-applying portion is arranged to protrude from the limiting portion, and the side wall of the force-applying portion is slidably arranged with the guide hole; the limiting portion is arranged on the outer periphery of the force-applying portion, and the limiting portion is suitable for abutting against the side of the mounting shell facing the elastic key module.

[0010] Optionally, the key body is connected to a side of the force-applying part facing the elastic key module, the key body is hollow inside, and the bottom thereof forms the adapting part; the firing part is fixed inside the key body.

[0011] Optionally, the firing portion is a columnar structure, and the bottom end of the firing portion is made of elastic plastic material.

[0012] Optionally, the button structure also includes a circuit board and at least one lamp bead, the lamp bead is electrically connected to the circuit board, the circuit board is electrically connected to the elastic button module, the lamp bead and the elastic button module are arranged at intervals, and the lamp bead and the elastic button module are arranged on the same side of the circuit board close to the button.

[0013] Optionally, the key body further comprises at least one light guide portion, the light guide portion is extended along the length direction of the key body, and the light guide portion and the lamp beads are arranged correspondingly; or

[0014] The button is configured as a light-guiding structure; or

[0015] The key body is configured as a light-guiding structure.

[0016] Optionally, the light-guiding portion is a columnar structure arranged at the periphery of the key body, and the light-guiding portion or the light-guiding structure is made of a transparent light-guiding material.

[0017] The utility model also provides an ultrasonic keyboard device, comprising a mounting shell and the above-mentioned key structure, wherein the mounting shell comprises an upper shell and a lower shell that can be adapted for mounting.

[0018] The technical solution provided by the utility model has the following advantages:

[0019] The key structure provided by the utility model comprises a key and an elastic key module, the key comprises a key cap and a key body, the key cap and a guide hole on the mounting shell are correspondingly arranged, the key cap can be slidably installed in the guide hole, the key body and the elastic key module are correspondingly arranged, an adapter portion is provided at one end of the key body close to the elastic key module, and the adapter portion is suitable for sliding configuration with the elastic key module.

[0020] The key structure of this structure guides the keycap of the key through the guide hole, and the adapter part of the key body and the elastic key module slide and guide each other, thereby strengthening the guiding and limiting effect of the elastic key module when the key is triggered, so that the guiding contact during key input is sufficient, and then when force is applied to the center area or edge area of ​​the key, the key can move in the desired direction, which effectively reduces the risk of jamming, ensures the reset ability of the elastic key module, and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A structural schematic diagram of the key structure provided by the utility model;

[0023] Figure 2 A schematic diagram of the structure of a key in the key structure provided by the utility model;

[0024] Figure 3 A schematic diagram of the connection between the key and the elastic key module in the key structure provided by the utility model;

[0025] Figure 4 A three-dimensional schematic diagram of a key in the key structure provided by the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the bottom of the key in the key structure provided by the utility model;

[0027] Figure 6 A schematic diagram of the structure of the ultrasonic keyboard device provided by the utility model;

[0028] Figure 7 A cross-sectional schematic diagram of the ultrasonic keyboard device provided by the utility model;

[0029] Description of reference numerals:

[0030] 1-upper housing; 11-guide hole; 12-boss portion;

[0031] 2-button; 21-key cap; 211-force applying part; 212-limiting part; 22-key body; 221-adapting part; 222-firing part; 223-light guiding part;

[0032] 3-elastic button module; 4-circuit board; 5-lamp bead; 6-lower shell. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Example 1

[0038] This embodiment provides a key structure, see Figures 1 to 7 The key structure includes a key 2 and an elastic key module 3. The key 2 includes a key cap 21 and a key body 22 connected to each other. The key cap 21 is correspondingly arranged with a guide hole 11 on the mounting housing. The key cap 21 is slidably mounted in the guide hole 11. The key body 22 is correspondingly arranged with the elastic key module 3. The key body 22 can be used to trigger the elastic key module 3. One or more guide holes 11 are arranged on the mounting housing. The key cap 21 is slidably arranged in the guide hole 11.

[0039] In this embodiment, see Figure 1 and Figure 5 The end of the key body 22 close to the elastic key module 3 is provided with an adaptor 221, and the adaptor 221 is suitable for sliding configuration with the elastic key module 3. The adaptor 221 can play a centering role, which is helpful to prevent the risk of jamming caused by the eccentricity of the key 2.

[0040] As an exemplary embodiment, see Figure 2 and Figure 5 The adapter part 221 is set as a hollow cylindrical structure, and the inner wall surface of the lower end side of the hollow cylindrical structure forms the above-mentioned adapter part 221. The adapter part 221 and the outer wall surface of the elastic key module 3 can be slidably arranged.

[0041] In some embodiments, see Figure 1 The mounting housing is provided with a boss portion 12, which protrudes from the upper end surface of the mounting housing away from the elastic key module 3. The boss portion 12 is arranged around the upper end of the guide hole 11 to extend the guide length of the guide hole 11 and the key cap 21 for sliding. The boss portion 12 extends the guide length of the guide hole 11 to enhance the guiding ability of the guide hole 11 and the key cap 21 for sliding, improve the movement accuracy of the key 2, and reduce the risk of jamming.

[0042] In some embodiments, see Figure 2 and Figure 5 The key body 22 also includes a firing part 222, which is disposed in the adapter part 221, and the firing part 222 is disposed in contact with the elastic key module 3. The user presses the key 2, so that the firing part 222 overcomes the elastic force of the elastic key module 3. During the movement and firing stroke of the key 2, the firing part 222 and the elastic key module 3 are always in stable contact, and the firing part 222 is vertically fired along the extension direction of the adapter part 221, ensuring smooth user operation and good force feedback.

[0043] In a specific embodiment, the firing portion 222 is a columnar structure, and the bottom end of the firing portion 222 is made of elastic plastic material to improve the firing sensitivity.

[0044] In some embodiments, see Figure 2 The keycap 21 includes a force-applying portion 211 and a limiting portion 212. The force-applying portion 211 protrudes from the limiting portion 212 to facilitate the user's finger to apply force and contact. The side wall of the force-applying portion 211 is slidably arranged with the guide hole 11. The upper end of the key 2 is guided by the guide hole 11 to ensure that the key 2 slides in the desired direction, thereby reducing the risk of the key 2 getting stuck; the limiting portion 212 is arranged on the outer periphery of the force-applying portion 211, and the limiting portion 212 is suitable for abutting against the side of the mounting shell facing the elastic key module 3; after the user disengages from the operation of the force-applying portion 211, the key 2 is reset under the elastic action of the elastic key module 3, and the limiting portion 212 is stopped by the mounting shell, thereby stopping the key 2. The limiting portion 212 is arranged around the outer periphery of the force-applying portion 211, and the contact balance between the annular limiting portion 212 and the mounting shell is ensured to ensure the alignment of the structure.

[0045] As an exemplary embodiment, see Figure 4The key cap 21 is configured as a rotating body structure, the force-applying part 211 and the limiting part 212 are also configured as rotating body structures, the force-applying part 211 is provided with a sliding surface, and the sliding surface is provided on the circumferential outer edge side of the force-applying part 211 toward the guide hole 11, and slides with the inner wall surface of the guide hole 11 through the sliding surface to improve the effect of smoothly firing the key 2 along the desired direction toward the elastic key module 3; the limiting part 212 is configured with a contact surface, and the contact surface is provided on the radial outer edge side of the limiting part 212 toward the mounting shell, and the contact surface is used to contact with the end surface in the mounting shell, and is used to stop and limit the key 2 in the elastic reset stroke of the elastic key module 3.

[0046] Furthermore, the key body 22 is connected to the side of the force-applying part 211 facing the elastic key module 3, the key body 22 is hollow inside, and an adapter part 221 is formed at the bottom; the firing part 222 is fixed in the key body; the adapter part 221 is formed by the hollow bottom of the key body 22, and the adapter part 221 utilizes the hollow wall surface of the key body 22 to slide in contact with the elastic key module 3 to strengthen the limiting and centering effect between the key 2 and the elastic key module 3, and the structure is easy to manufacture and easy to connect and assemble with the elastic key module 3.

[0047] In a specific embodiment, the upper end surface of the force applying part 211 is configured as a concave structure. In this configuration, the concave structure can be easily contacted and matched with the fingertips of the human body, so as to facilitate the force application of the fingertips.

[0048] Specifically, the installation housing includes an upper housing 1 and a lower housing 6, a guide hole 11 is provided on the upper housing 1, the button 2 and the guide hole 11 on the upper housing 1 slide in correspondence, and the end surface of the upper housing 1 itself facing the elastic button module 3 contacts the limiting portion 212 of the limiting button 2, so that the button 2 can be limited in the installation housing. The button 2 and the installation housing are tightly assembled, which can achieve a good waterproof effect.

[0049] In some embodiments, the axial cross-section of the limiting portion 212 is configured as an L-shaped structure.

[0050] The key structure provided in this embodiment guides the keycap 21 of the key 2 through the guide hole 11, and the adapter part 221 of the key body 22 and the elastic key module 3 slide and guide each other, thereby strengthening the guiding and limiting effect of the key 2 when the elastic key module 3 is triggered, so that the guiding contact during key input is sufficient, and then when force is applied to the center area or edge area of ​​the key 2, the key 2 can move in the desired direction, which effectively reduces the risk of jamming, ensures the reset ability of the elastic key module 3, and improves the user experience.

[0051] In this embodiment, see Figure 1The key structure also includes a circuit board 4 and at least one lamp bead 5, the lamp bead 5 is electrically connected to the circuit board 4, the circuit board 4 is electrically connected to the elastic key module 3, the lamp bead 5 and the elastic key module 3 are arranged at intervals, and the lamp bead 5 and the elastic key module 3 are arranged on the same side of the circuit board 4 close to the key 2.

[0052] The lamp bead 5 is designed separately from the elastic key module 3. The light color of the lamp bead 5 can be designed when the circuit board 4 is designed and processed, and the light color of the lamp bead 5 can also be changed later; the lamp bead 5 can be set as an LED light source.

[0053] See also Figure 3 and Figure 5 The key body 22 further includes one or more light guide portions 223, which are extended along the length direction of the key body 22, and the light guide portions 223 and the lamp beads 5 are arranged correspondingly. In a specific embodiment, the number of the light guide portions 223 is the same as the number of the lamp beads 5, and the end of the light guide portion 223 away from the force applying portion 211 is extended toward the lamp beads 5. The light guide portion 223 is set to a transparent light-guiding material.

[0054] In some embodiments, the light guide 223 is a columnar structure arranged on the periphery of the key body 22, and at least one light guide 223 is configured, for example, two, three, four or more light guides 223 are configured, and correspondingly, two, three, four or more lamp beads are provided, which are not listed here one by one; the key structure provided in this embodiment guides the illumination light of the lamp bead 5 to the key cap 21 of the key 2 through the light guide 223, so as to present the font part designed on the upper end of the key 2 as a luminous font, thereby facilitating the user to identify the operation. In a specific embodiment, four light guides 223 are provided, which are evenly arranged on the side positions of the key body 22.

[0055] In some embodiments, the light guide portion 223 and the key body 22 are an integrally formed structure, and both the light guide portion 223 and the key body 22 are made of transparent light guide materials, which has a simple structure and is easy to manufacture.

[0056] In some embodiments, the key 2 is configured as a light-guiding structure as a whole to guide the light output by the lamp bead 5 to the upper end surface of the key 2. The light-guiding structure is made of a transparent light-guiding material.

[0057] The force-applying portion 211 of the key cap 21 may be made of a transparent material with diffuser powder to effectively diffuse the illumination light guided by the light-guiding portion 223 , so that the font portion designed on the upper end of the key 2 emits light evenly.

[0058] The key structure provided in this embodiment does not have the risk of jamming when applying force to the edge or center of the key 2, thereby improving the convenience of keyboard input.

[0059] In the above description, the elastic key module 3 is set as a reed key, which has an elastic force that acts on the key 2 to reset so that the limit portion 212 and the upper shell 1 are in contact; after the key 2 is reset, the force-applying portion 211 can protrude from the upper end surface of the upper shell 1; of course, the elastic key module 3 can also be set as other keys with reset capabilities.

[0060] Example 2

[0061] This embodiment provides an ultrasonic keyboard device, including a mounting housing and the key structure of embodiment 1. Figure 6 and Figure 7 The mounting shell includes an upper shell 1 and a lower shell 6 that can be adapted to be mounted.

[0062] The lower shell 6 and the upper shell 1 are detachably snap-fitted. The circuit board 4 and the elastic key module 3 are assembled in the inner cavity area enclosed by the lower shell 6 and the upper shell 1 .

[0063] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A key structure, characterized in that: include: A key (2) and an elastic key module (3), wherein the key (2) comprises a key cap (21) and a key body (22) connected to each other, the key cap (21) and a guide hole (11) on the mounting housing are arranged correspondingly, and the key cap (21) is slidably mounted in the guide hole (11); The key body (22) is arranged corresponding to the elastic key module (3), and the key body (22) is used to trigger the elastic key module (3); an adaptor (221) is provided at one end of the key body (22) close to the elastic key module (3), and the adaptor (221) is suitable for sliding configuration with the elastic key module (3).

2. The key structure according to claim 1, characterized in that: The mounting shell is provided with a boss portion (12), the boss portion (12) protruding from the upper end surface of the mounting shell away from the elastic key module (3), and the boss portion (12) is arranged around the upper end of the guide hole (11) to extend the guide length of the sliding between the guide hole (11) and the key cap (21).

3. The key structure according to claim 2, characterized in that: The key body (22) further comprises a firing portion (222), wherein the firing portion (222) is arranged in the adapting portion (221), and the firing portion (222) and the elastic key module (3) are arranged in abutment with each other.

4. The key structure according to claim 3, characterized in that: The key cap (21) comprises a force-applying portion (211) and a limiting portion (212); the force-applying portion (211) is arranged to protrude from the limiting portion (212); a side wall of the force-applying portion (211) is slidably arranged with the guide hole (11); the limiting portion (212) is arranged on the outer periphery of the force-applying portion (211), and the limiting portion (212) is suitable for being abutted against a side of the mounting shell facing the elastic key module (3).

5. The key structure according to claim 4, characterized in that: The key body (22) is connected to the side of the force-applying portion (211) facing the elastic key module (3); the key body (22) is hollow inside, and the bottom thereof forms the adapting portion (221); the firing portion (222) is fixed inside the key body.

6. The key structure according to claim 5, characterized in that: The firing portion (222) is a columnar structure, and the bottom end of the firing portion (222) is made of elastic plastic material.

7. The key structure according to any one of claims 1 to 6, characterized in that: The key structure further comprises a circuit board (4) and at least one lamp bead (5); the lamp bead (5) is electrically connected to the circuit board (4); the circuit board (4) is electrically connected to the elastic key module (3); the lamp bead (5) and the elastic key module (3) are arranged at intervals; the lamp bead (5) and the elastic key module (3) are arranged on the same side of the circuit board (4) close to the key (2).

8. The key structure according to claim 7, characterized in that: The key body (22) further comprises at least one light guide portion (223), the light guide portion (223) being arranged extending along the length direction of the key body (22), and the light guide portion (223) and the lamp bead (5) being arranged correspondingly; or The button (2) is configured as a light-guiding structure; or The key body (22) is configured as a light-guiding structure.

9. The key structure according to claim 8, characterized in that: The light-guiding portion (223) is a columnar structure arranged on the periphery of the key body (22); the light-guiding portion (223) or the light-guiding structure is made of a transparent light-guiding material.

10. An ultrasonic keyboard device, characterized in that: It comprises a mounting shell and a key structure as claimed in any one of claims 1 to 9, wherein the mounting shell comprises an upper shell (1) and a lower shell (6) which can be adapted for mounting.

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