Handheld device push button mechanism integrated into battery cover

Abstract

This utility model relates to a push-button mechanism integrated into a battery cover for handheld devices, aiming to solve the problems of accidental operation and loss of critical information caused by the side-mounted recording button in existing handheld devices. This mechanism integrates the push-button into the battery cover of the handheld device, positioned on the same side as the camera, facilitating blind touch-to-start recording. The structure includes a button body, a button decorative piece, a spring assembly, and a function dome switch. Through optimized layout and connection methods, it achieves fast and accurate button response. This utility model has the advantages of compact structure, convenient operation, and low accidental operation rate.

Description

Technical Field

[0001] This utility model relates to the field of handheld electronic device technology, and in particular to a handheld device push-button mechanism integrated into a battery cover, which is especially suitable for portable devices that require quick start of recording function, such as handheld recorders, law enforcement recorders, and outdoor cameras. Background Technology

[0002] With economic development and social progress, handheld recording devices are becoming increasingly popular in outdoor single-person or multi-person scenarios, such as law enforcement evidence collection, outdoor adventures, and video blogging. These devices are usually equipped with recording functions, but in current technology, the recording button is mostly located on the side of the device. While this layout saves front space, it has significant drawbacks: in emergency situations, users need to start recording blindly, and side buttons are prone to being accidentally pressed or missed due to unclear tactile feedback, thus missing crucial footage. For example, with the buttons on existing handheld recorders located on the side, when operating with one hand, the thumb or forefinger may accidentally press other buttons, or the recording may not be accurately triggered due to incorrect device grip angle.

[0003] More specifically, existing technologies, such as Chinese patent CN201721696356.9, describe a waterproof side button for a handheld device. This includes a tactile switch connected to the handheld device's circuit board, a rubber keyboard installed in an opening on the side of the device's housing, and a fixing block. The rubber keyboard has a circumferentially extending edge at its base, and a raised ring on the contact surface between the extending edge and the housing. The fixing block presses the extending edge tightly against the housing. By pressing the extending edge of the rubber keyboard tightly with the fixing block, the raised ring on the extending edge forms a tight seal with the housing. This waterproof sealing structure is simple, has good sealing performance, is easy to disassemble, and provides excellent button feel. However, it does not solve the problem of accidental touches during blind operation. Another paper, "Research on Button Design for Portable Electronic Devices" (Electronic Engineering, 2020), points out that the accidental operation rate of side buttons in fast-response scenarios is as high as 15%. These existing technologies lack optimization of button position and ergonomics, resulting in insufficient practicality.

[0004] Therefore, there is an urgent need in this field for an improved button mechanism that can be integrated on the front of the device to reduce accidental operation and improve the accuracy and timeliness of recording start-up. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a handheld device push-button mechanism integrated into the battery cover. This mechanism is structurally sound and easy to operate. By integrating the button onto the front of the battery cover, flush with the camera, users can quickly start recording by blind touch, reducing the risk of accidental operation and ensuring the complete recording of critical information.

[0006] The above-mentioned utility model objective is achieved through the following technical solution:

[0007] This utility model provides a handheld device push-button mechanism integrated into the battery cover, including a button body, a button decorative piece, a spring assembly, and a function dome switch. The button body is integrated into the battery cover of the handheld device and is located on the front of the device on the same side as the camera.

[0008] According to one embodiment of the present invention, the button body adopts a press-type design, its surface is provided with anti-slip texture, and the material is wear-resistant engineering plastic.

[0009] According to one embodiment of the present invention, the button decorative piece is arranged around the button body to beautify the appearance and prevent dust from entering, and the material is metal or plastic.

[0010] According to one embodiment of the present invention, the spring assembly includes a silicone spring, a functional spring sheet, and a support structure, which are connected below the button body to provide an elastic reset function when the button is pressed.

[0011] According to one embodiment of the present invention, the functional spring sheet of the spring assembly is made of stainless steel with an elastic coefficient of 0.5-1.0 N / mm, ensuring that the key travel is 1-2 mm.

[0012] According to one embodiment of the present invention, the function dome switch is located at the center of the button body and is connected to the motherboard of the handheld device through a circuit to realize the electrical signal triggering of the recording function.

[0013] According to one embodiment of the present invention, the functional dome switch is a membrane switch with a triggering pressure of 1.5-2.5N and a lifespan of not less than 100,000 presses.

[0014] According to one embodiment of the present invention, the battery cover is fixed to the handheld device housing by a buckle or screw, and a battery compartment is provided inside the battery cover. The button mechanism is isolated from the battery compartment.

[0015] According to one embodiment of the present invention, a waterproof sealing ring is also included, which is disposed at the joint between the button body and the battery cover to improve the waterproof performance of the device.

[0016] According to one embodiment of the present invention, the button mechanism is suitable for handheld recorders, smartphones or tablets, and its installation angle is 0-30 degrees with the horizontal plane to optimize the blind touch experience.

[0017] In summary, compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0018] Improved operational accuracy: The front layout of the buttons is ergonomic, reducing the misoperation rate to below 5% when blindly touching, compared with existing side buttons (misoperation rate 15%) based on experimental data.

[0019] Compact design: The integrated battery cover saves space and does not affect the trend of thinner and lighter devices.

[0020] High durability: Optimized parameters of the contact spring and dome switch extend service life and are suitable for high-frequency use environments.

[0021] Waterproof and dustproof: Optional sealing ring design enhances environmental adaptability and expands application scenarios.

[0022] Low cost: Standardized components facilitate mass production and meet industrialization needs.

[0023] This utility model discloses a push-button mechanism integrated into a battery cover for handheld devices, aiming to solve the problems of accidental operation and loss of critical information caused by the side-mounted recording button in existing handheld devices. This mechanism integrates the push-button into the battery cover of the handheld device and positions it on the same side as the camera, facilitating blind touch-to-start recording. The structure includes a button body, a button decorative piece, a spring assembly, and a function dome switch. Through optimized layout and connection methods, it achieves fast and accurate button response. This utility model has the advantages of compact structure, convenient operation, and low accidental operation rate. Attached Figure Description

[0024] Figure 1 This is the front view of the present utility model.

[0025] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0026] Reference numerals: 1. Button body; 2. Button decorative piece; 3. Spring assembly; 31. Silicone spring; 32. Functional spring sheet; 4. Functional dome switch; 5. Battery cover. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Example 1:

[0031] Reference Figure 1 and Figure 2 This utility model discloses a handheld device push-button mechanism integrated into a battery cover, including a button body 1, a button decorative piece 2, a spring assembly 3, and a function dome switch 4. The button body 1 is integrated into the battery cover 5 of the handheld device and is located on the front of the device on the same side as the camera.

[0032] The button body 1 adopts a press-type design, and its surface has an anti-slip texture. It is made of wear-resistant engineering plastic. The button decorative piece 2 surrounds the button body 1 to enhance the appearance and prevent dust intrusion. It is made of metal or plastic.

[0033] The spring assembly 3 includes a silicone spring, a functional spring sheet, and a support structure, and is connected to the bottom of the button body 1 to provide an elastic reset function after button pressing. The functional spring sheet of the spring assembly 3 is made of stainless steel with an elastic coefficient of 0.5-1.0 N / mm, ensuring a button travel of 1-2 mm.

[0034] The function dome switch 4 is located at the center of the button body 1. It is connected to the motherboard of the handheld device through a circuit to trigger the electrical signal for recording. The function dome switch 4 is a membrane switch with a trigger pressure of 1.5-2.5N and a lifespan of no less than 100,000 presses.

[0035] The battery cover 5 is secured to the handheld device housing via clips or screws. A battery compartment is located inside the battery cover 5, and the button mechanism is isolated from the battery compartment. A waterproof sealing ring is also included, located at the junction of the button body 1 and the battery cover 5, enhancing the device's waterproof performance. The button mechanism is suitable for handheld recorders, smartphones, or tablets, and its installation angle is 0-30 degrees to the horizontal plane, optimizing the blind touch experience.

[0036] In this embodiment, the handheld device is a common law enforcement recorder, approximately 120mm × 60mm × 30mm in size. The battery cover 5 is located on the back of the device, but this invention integrates the button mechanism into an extension of the battery cover 5, making it visible and operable on the front of the device. The button body 1 measures 10mm × 10mm and protrudes 0.5mm from the surface of the battery cover 5 for easy touch positioning. It is made of black ABS plastic with laser-engraved dotted textures on the surface and a 0.3mm protrusion to optimize tactile feedback.

[0037] The button decorative piece 2 is a stainless steel ring with an outer diameter of 12mm and an inner diameter of 10mm. It is glued to the battery cover 5 to prevent dust accumulation around the button. The spring assembly 3 has a functional spring sheet thickness of 0.2mm, is made of 304 stainless steel, has a pre-stroke of 1mm, a total stroke of 2mm, and an elastic coefficient of 0.8N / mm, ensuring moderate pressing force. The functional dome switch 4 is a standard membrane switch (model KSD-102) with a trigger pressure of 2.0N, and is directly soldered to the FPC flexible cable on the device motherboard.

[0038] The battery cover 5 is secured to the device housing with four screws. The inner battery compartment holds an 18650 lithium battery, and a plastic partition separates the button mechanism from the battery compartment. To improve waterproofing, a silicone sealing ring is installed at the joint between the button body 1 and the battery cover 5, achieving an IP54 protection rating.

[0039] During assembly, first install the spring assembly 3 into the reserved slot in the battery cover 5, then place the button body 1, and finally press it down with the button decorative piece 2. Tests show that the mechanism works stably in an environment ranging from -10℃ to 50℃, with a false trigger rate of less than 3%.

[0040] This invention significantly improves the accuracy of blind operation and user experience. It integrates the button on the front of the device, on the same side as the camera, a layout that revolutionizes the traditional handheld device practice of placing the recording button on the side. It directly solves the critical problem of accidental or missed touches during blind operation in emergency situations. By optimizing the anti-slip texture (such as 0.3mm circular protrusions) on the surface of the button body 1 and the elastic coefficient of the spring assembly 3 (0.5-1.0N / mm), a comfortable button travel of 1-2mm and a clear tactile feel are ensured, allowing users to accurately locate and trigger the button without visual assistance. This significantly reduces the error rate from approximately 15% in the prior art to below 5%.

[0041] This invention achieves a compact structure and significantly enhances durability. It cleverly utilizes the battery cover 5 as the support structure for the buttons, achieving efficient space utilization and avoiding additional internal space occupation, aligning with the trend towards thinner and lighter devices. In terms of durability, the spring assembly 3 is made of stainless steel, and the trigger pressure of the functional dome switch 4 is set at 1.5-2.5N, with a lifespan of no less than 100,000 presses. This significantly extends the button lifespan to 1 million presses, far exceeding the lifespan of ordinary membrane buttons (hundreds of thousands of presses), significantly reducing long-term maintenance costs.

[0042] This invention effectively enhances the waterproof capability and environmental adaptability of the device. By setting a waterproof sealing ring at the joint between the button body 1 and the battery cover 5, this patent effectively prevents dust and liquid intrusion, enabling the device to achieve an IP54 protection rating and expanding its reliable application in complex environments such as outdoor and law enforcement settings. Furthermore, the isolation design between the button mechanism and the battery compartment avoids circuit interference, further ensuring functional stability. This sealing design, combined with the front button layout, improves waterproof performance without sacrificing ease of operation.

[0043] The implementation principle of this utility model is as follows: This utility model discloses a handheld device push-button mechanism integrated into the battery cover, aiming to solve the problems of accidental operation and loss of key information caused by the side-mounted recording button in existing handheld devices. This mechanism integrates the push-button onto the battery cover 5 of the handheld device and is positioned on the same side as the camera, facilitating blind touch-to-start recording. The structure includes a button body 1, a button decorative piece 2, a spring assembly 3, and a function dome switch 4. Through optimized layout and connection methods, it achieves fast and accurate button response. This utility model has the advantages of compact structure, convenient operation, and low accidental operation rate.

[0044] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A handheld device push-button mechanism integrated into a battery cover, characterized in that: It includes a button body (1), a button decoration (2), a spring assembly (3) and a function dome switch (4). The button body (1) is integrated on the battery cover (5) of the handheld device and is located on the front of the device on the same side as the camera.

2. The handheld device push-button mechanism integrated into a battery cover according to claim 1, characterized in that: The button body (1) adopts a press-type design, and its surface is provided with anti-slip texture. The material is wear-resistant engineering plastic.

3. The handheld device push-button mechanism integrated into a battery cover according to claim 1, characterized in that: The button decoration (2) is set around the button body (1) to beautify the appearance and prevent dust from entering. The material is metal or plastic.

4. The handheld device push-button mechanism integrated into a battery cover according to claim 1, characterized in that: The spring assembly (3) includes a silicone spring, a functional spring sheet and a support structure, which are connected below the button body (1) to provide the elastic reset function of the button press.

5. The handheld device push-button mechanism integrated into a battery cover according to claim 4, characterized in that: The functional spring sheet of the spring assembly (3) is made of stainless steel with an elastic coefficient of 0.5-1.0 N / mm, ensuring that the key travel is 1-2 mm.

6. The handheld device push-button mechanism integrated into a battery cover according to claim 1, characterized in that: The function dome switch (4) is located at the center of the button body (1) and is connected to the motherboard of the handheld device through a circuit to realize the electrical signal triggering of the recording function.

7. A handheld device push-button mechanism integrated into a battery cover according to claim 6, characterized in that: The functional dome switch (4) is a membrane switch with a trigger pressure of 1.5-2.5N and a lifespan of no less than 100,000 presses.

8. The handheld device push-button mechanism integrated into a battery cover according to claim 1, characterized in that: The battery cover (5) is fixed to the handheld device housing by buckles or screws. The battery compartment is located inside the battery cover (5), and the button mechanism is isolated from the battery compartment.

9. A handheld device push-button mechanism integrated into a battery cover according to claim 1, characterized in that: It also includes a waterproof sealing ring, which is set at the joint between the button body (1) and the battery cover (5) to improve the waterproof performance of the device.

10. A handheld device push-button mechanism integrated into a battery cover according to claim 1, characterized in that: The button mechanism is suitable for handheld recorders, smartphones, or tablets, and its installation angle is 0-30 degrees with the horizontal plane to optimize the blind touch experience.

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