Key assembly and doorbell device
By adding pads and guide structures to the doorbell's button assembly, the noise problem during button rebound is solved, resulting in a quieter user experience and a longer device lifespan.
Patent Information
- Application Number
- CN202422338027.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The button components of existing doorbells produce a mechanical knocking sound when they rebound, causing environmental noise pollution and affecting the user experience.
Design a button assembly that reduces the impact area of the button by adding a pad between the button and the front housing, and uses a guide structure and buffer pad to absorb impact energy, avoid direct contact with hard objects, and reduce noise.
It effectively reduces the noise when the button rebounds, improves the user experience, and extends the lifespan of the doorbell.
Smart Images
Figure CN223471521U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of smart home, especially a key assembly and a doorbell device. BACKGROUND
[0002] A doorbell is an electronic device installed in front of a residential or commercial building, which mainly functions to notify the indoor personnel of the arrival of a visitor. When the visitor presses the key of the doorbell, the doorbell will emit a sound or signal to remind the indoor personnel to open the door. The doorbell has various forms, including wired doorbells, wireless doorbells, electronic doorbells, etc., and their sound effects and functions are also different.
[0003] The key assembly of the existing doorbell is usually composed of a key made of metal or plastic, a metal contact, and a bracket for fixing these components. When the user presses the key, the key contacts the metal contact, thereby closing the circuit and triggering the doorbell to emit a sound.
[0004] However, when the key rebounds, the contact between the key and the doorbell shell will produce a mechanical collision sound, which will cause environmental noise pollution and affect the work and life quality of the user and the surrounding people. Especially in a quiet environment at night, the loud sound will be particularly irritating and affect the user experience. SUMMARY
[0005] The main purpose of the utility model is to provide a key assembly and a doorbell device, which aims to reduce the key sound of the doorbell during use and improve the user experience.
[0006] To achieve the above purpose, the utility model provides a key assembly, which comprises:
[0007] A front shell body having a first side and a second side arranged oppositely, the first side of the front shell body being provided with a through hole penetrating to the second side;
[0008] A key arranged close to the second side and movable along a pressing direction relative to the front shell body, at least part of the structure of the key being exposed to the front shell body through the through hole; and
[0009] A pad block arranged between the front shell body and the key.
[0010] In an embodiment, the key assembly further comprises a guide structure, which comprises a guide column and a guide hole, the guide column extending along the pressing direction, and the guide column being inserted into the guide hole; wherein one of the guide column and the guide hole is arranged on the key, and the other of the guide column and the guide hole is arranged on the pad block or the front shell body.
[0011] In an embodiment, the guide column is arranged on the front shell near the side of the key.
[0012] The guide hole is arranged on the key.
[0013] In an embodiment, the key comprises:
[0014] a key body, a part of structure of the key body is inserted into the through hole; and
[0015] a cantilever, two ends of the cantilever are connected to the peripheral sidewall of the key body, other structure of the cantilever is arranged in a spaced manner with the key body, the side of the cantilever near the front shell abuts against the cushion block; the guide hole is arranged on the cantilever.
[0016] In an embodiment, at least one groove is arranged on the side of the cantilever away from the front shell.
[0017] In an embodiment, the groove is one of a semicircular groove, a rectangular groove or a trapezoidal groove.
[0018] In an embodiment, the key assembly comprises a plurality of guide structures, a plurality of guide columns in the plurality of guide structures are arranged in a spaced manner along the edge of the key.
[0019] In an embodiment, the key assembly further comprises a switch module, the switch module is located on the side of the key away from the front shell, the switch module comprises a micro switch and a circuit board electrically connected to the micro switch, the micro switch is arranged between the circuit board and the key and located on the moving path of the key.
[0020] In an embodiment, the switch module further comprises a buffer gasket, the buffer gasket is arranged between the micro switch and the key.
[0021] The utility model also provides a doorbell device, the doorbell device comprises the key assembly as described above.
[0022] The utility model discloses a doorbell device, the doorbell device comprises the key assembly as described above. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only constitute some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.
[0024] Figure 1 The first embodiment of the key assembly provided by the present application;
[0025] Figure 2 The second embodiment of the key assembly provided by the present application;
[0026] Figure 3 The third embodiment of the key assembly provided by the present application;
[0027] Figure 4 An embodiment of the doorbell device provided by the present application.
[0028] Explanation of the reference signs:
[0029] 100, key assembly; 1, front shell; 2, key; 21, key body; 22, cantilever; 221, groove; 3, cushion block; 4, guide structure; 41, guide column; 42, guide hole; 5, switch module; 51, micro switch; 52, circuit board; 53, buffer gasket;
[0030] 1000, doorbell device.
[0031] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.
[0034] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.
[0035] The application provides a key assembly 100.
[0036] Please refer to Figures 1 to 3 In an embodiment, the key assembly 100 includes a front shell 1, a key 2 and a cushion block 3, the front shell 1 has a first side and a second side arranged oppositely, the first side of the front shell 1 is provided with a through hole penetrating to the second side; the key 2 is arranged close to the second side and can move along the pressing direction relative to the front shell 1, at least part of the structure of the key 2 is exposed to the front shell 1 through the through hole; the cushion block 3 is arranged on the front shell 1 and located between the front shell 1 and the key 2.
[0037] The present application places the cushion block 3 between the key 2 and the front shell 1, which can avoid the direct contact between the key 2 and the front shell 1, and reduce the collision area of the key 2, so as to achieve the purpose of reducing noise and improving user experience. Specifically, the cushion block 3 is located below or around the key 2, when the key 2 is pressed, the cushion block 3 can contact the front shell 1 or be located at a certain position between the key 2 and the front shell 1, when the key 2 rebounds, the cushion block 3 acts as a buffer layer, preventing the key 2 from directly impacting the front shell 1, reducing the noise generated when the key 2 rebounds, reducing the direct contact between hard objects, and prolonging the service life of the doorbell.
[0038] It should be noted that the contact area between the boss and the key 2 should be less than or much smaller than the area of the front shell 1, the smaller contact area not only can reduce the wear between the key 2 and the boss, thereby prolonging the service life of the key assembly 100, but also can further reduce the noise. In addition, the boss can be directly formed by part of the structure of the front shell 1 or part of the structure of the key 2, or can be other structures independent of the two, connected by locking parts or adhesive. The material selection of the boss depends on many factors, including application environment, durability requirements, cost budget and compatibility with other components, for example, the boss can be plastic, metal or elastic material, in order to reduce the production process, the boss can be the same material as the front shell 1, such as metal or plastic, and in order to further reduce the noise, the boss can be selected as elastic material.
[0039] In an embodiment of the present application, the key assembly 100 further comprises a guide structure 4, the guide structure 4 comprises a guide post 41 and a guide hole 42, the guide post 41 extends along the pressing direction, and the guide post 41 is inserted into the guide hole 42; wherein one of the guide post 41 and the guide hole 42 is arranged on the key 2, and the other of the guide post 41 and the guide hole 42 is arranged on the pad 3 or the front shell 1. Specifically, the guide post is a component extending along the pressing direction, which is usually designed in a cylindrical or prismatic shape, and the guide hole 42 is a hole matching the guide post 41 for inserting the guide post 41, one of the guide post 41 and the guide hole 42 is arranged on the key 2, and the other is arranged on the pad 3 or the front shell 1. In this way, when the key 2 is pressed, the guide post 41 will slide along the guide hole 42, ensuring the stability of the movement track of the key 2. The guide structure 4 ensures that the key 2 always maintains the correct position during pressing and rebounding, avoiding the deviation of the key 2 and improving the accuracy of operation.
[0040] In an embodiment of the present application, the guide post 41 is arranged on the side of the front shell 1 close to the key 2, and the pad 3 is arranged around the outer periphery of the guide post 41; the guide hole 42 is arranged on the key 2. The way of arranging the boss around the outer periphery of the guide post 41 makes the boss help to evenly distribute the pressure of the key 2 on the guide post 41 when the key 2 is moving, avoiding the pressure concentrating on a certain point, thereby reducing wear and tear and improving durability.
[0041] In an embodiment of the present application, the key 2 comprises a key body 21 and a cantilever 22, part of the structure of the key body 21 is inserted into the through hole; both ends of the cantilever 22 are connected to the side wall of the key body 21, and the other structure of the cantilever 22 is arranged spaced apart from the key body 21, the side of the cantilever 22 close to the front shell 1 abuts against the pad 3; the guide hole 42 is arranged on the cantilever 22. The key body 21 is the main part of the key 2, part of its structure is exposed to the front shell 1 through the through hole, so that the user can operate the key 2, the cantilever 22 is fixed at both sides of the key body 21, and the middle part is arranged spaced apart from the key body 21, forming a kind of cantilever structure. Compared with the flange structure arranged on the outer periphery of the key body 21, the cantilever structure can provide better elastic deformation due to its slender shape and the characteristics of being fixed at both ends, which means that the cantilever can bend when the key 2 is operated, thereby providing a softer feel and better pressure distribution, and the cantilever structure can absorb and disperse impact force when the key 2 rebounds, reducing the noise caused by direct impact. Compared with the flange structure, this can more effectively reduce the sound during operation, in addition, the cantilever structure usually uses less material than the flange structure, making the key assembly 100 lighter, which is more advantageous for reducing the weight and production cost of the entire doorbell device 1000.
[0042] In an embodiment of the present application, at least one groove 221 is formed on the side of the cantilever 22 facing away from the front housing 1. The groove 221 makes the cantilever 22 more flexible at a specific position, which helps to provide a smoother force response when the button 2 is operated and reduces the noise. Specifically, the groove 221 forms a buffer area on the cantilever 22, which can absorb and disperse the energy generated by the elastic deformation of the cantilever 22 when the button 2 is pressed and rebounds.
[0043] In an embodiment of the present application, the groove 221 is one of a semicircular groove, a rectangular groove, or a trapezoidal groove. The semicircular groove has a smooth shape without sharp corners, which helps to reduce stress concentration and provide more uniform pressure distribution, thereby effectively absorbing and dispersing impact energy and reducing noise. The trapezoidal groove can be adjusted according to different force distribution requirements to optimize the buffering effect. The rectangular groove is convenient to adjust its length and width during production and manufacturing to adapt to different design requirements.
[0044] In an embodiment of the present application, the button assembly 100 includes a plurality of guide structures 4, and a plurality of guide posts 41 in the plurality of guide structures 4 are arranged along the edge of the button 2. The plurality of guide posts 41 arranged along the edge of the button 2 can improve the stability of the button 2 during pressing and rebounding. Each guide post 41 can provide independent guiding effect, reducing the deviation and jumping during the operation of the button 2. In addition, the plurality of guide posts 41 can help reduce the noise generated during the operation of the button 2, as they can absorb and disperse impact energy, thereby reducing noise generation.
[0045] In an embodiment of the present application, the button assembly 100 further includes a switch module 5, which is located on the side of the button 2 facing away from the front housing 1. The switch module 5 includes a micro switch 51 and a circuit board 52 electrically connected to the micro switch 51. The micro switch 51 is arranged between the circuit board 52 and the button 2 and located on the moving path of the button 2. When the button 2 is pressed, the contacts of the micro switch 51 will close, forming a closed circuit. The circuit board 52 is used to connect the micro switch 51 and connect it with external circuits or systems to transmit signals when the button 2 is operated. The switch module 5 can realize the electrification of the button 2 operation, so that the button 2 can be connected with various functions of electronic devices, improving the intelligent and automated level of the product. This design is very important for the button 2 design of modern electronic products.
[0046] In an embodiment of the present application, the switch module 5 further comprises a buffer pad 53, which is arranged between the micro switch 51 and the button 2. On the one hand, the buffer pad 53 can absorb and disperse the impact energy generated when the button 2 is operated, thereby reducing the generation of noise, and the buffer pad 53 can also provide a softer pressing feedback, so that the user feels more comfortable when operating the button 2. In addition, the buffer pad 53 can reduce the direct contact between the button 2 and the micro switch 51, thereby reducing wear and tear and prolonging the service life of the button assembly 100.
[0047] Referring to Figure 4 The utility model further provides a doorbell equipment 1000, this doorbell equipment 1000 includes button assembly 100, and the specific structure of button assembly 100 refers to the above-mentioned embodiment, because the doorbell equipment 1000 of the utility model adopts all the technical schemes of the above-mentioned all embodiments, thus at least has all the beneficial effects brought by the technical scheme of the above-mentioned embodiment, and here will not repeat.
[0048] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and all equivalent structural transformations made by the utility model specification and the attached drawings contents, or direct / indirect application in other related technical fields under the utility model concept of the utility model are included in the patent protection range of the utility model.
Claims
1. A key assembly, characterized by The key assembly comprises: a front shell having first and second opposite sides, the first side of the front shell having a through hole extending through to the second side; a key disposed adjacent to the second side and movable relative to the front shell in a pressing direction, at least part of the key being exposed to the front shell through the through hole; and a pad disposed on the front shell and located between the front shell and the key.
2. The key assembly of claim 1, wherein, The key assembly further comprises a guide structure, the guide structure comprising a guide post and a guide hole, the guide post extending in the pressing direction and being inserted into the guide hole, wherein one of the guide post and the guide hole is disposed on the key and the other of the guide post and the guide hole is disposed on the pad or the front shell.
3. The key assembly of claim 2, wherein, The guide post is disposed on the side of the front shell adjacent to the key, and the pad is disposed around the outer periphery of the guide post. The guide hole is disposed on the key.
4. The key assembly of claim 3, wherein The key comprises: a key body, part of the key body being inserted into the through hole; and a cantilever, both ends of the cantilever being connected to the peripheral sidewall of the key body, other structures of the cantilever being spaced apart from the key body, and the side of the cantilever adjacent to the front shell abutting against the pad, the guide hole being disposed on the cantilever.
5. The key assembly of claim 4, wherein, The side of the cantilever away from the front shell is provided with at least one groove.
6. The key assembly of claim 5, wherein The groove is one of a semicircular groove, a rectangular groove or a trapezoidal groove.
7. The key assembly of claim 2, wherein The key assembly comprises a plurality of guide structures, a plurality of guide posts of the plurality of guide structures being spaced apart along the edge of the key.
8. The key assembly of any one of claims 1 to 7, wherein, The key assembly further comprises a switch module, the switch module being located on the side of the key away from the front shell, the switch module comprising a micro switch and a circuit board electrically connected to the micro switch, the micro switch being disposed between the circuit board and the key and located on the movement path of the key.
9. The key assembly of claim 8, wherein, The switch module further comprises a buffer gasket, the buffer gasket being disposed between the micro switch and the key.
10. A doorbell device, comprising: The doorbell device comprises the key assembly according to any one of claims 1 to 9.