Handheld control switch

Abstract

The application relates to a handheld control switch. The handheld control switch comprises a shell, a circuit board assembly and an elastic sealing piece; the shell comprises a face shell and a bottom shell connected with the face shell, the face shell and the bottom shell jointly form a containing cavity, and the circuit board assembly is arranged in the containing cavity; the elastic sealing piece is annular, the elastic sealing piece is clamped between the face shell and the bottom shell to seal the face shell and the bottom shell; and the elastic sealing piece at least partially protrudes outward from the shell to form a buffer part. The scheme provided by the application has the functions of waterproofing, dustproofing and anti-falling, and can improve reliability.

Description

Technical Field

[0001] This application relates to the field of control switch technology, and more particularly to a handheld control switch. Background Technology

[0002] In the field of electric doors and windows, handheld control switches have become the mainstream device for operating the roller shutter motor. These switches integrate control components through an internal circuit board, allowing users to send control signals to the roller shutter motor by triggering the corresponding button on the switch, thus opening and closing the doors and windows.

[0003] However, the handheld control switches of the relevant technology have revealed obvious reliability defects in actual use: handheld switches lack an effective sealing structure, and in humid or dusty environments, moisture and dust can easily penetrate into the switch and adhere to the surface of the circuit board and electronic components, resulting in a decline in circuit performance, corrosion and aging of components, and a significant shortening of product lifespan; when the handheld switch is accidentally dropped and impacted, its internal circuit board is easily damaged by vibration.

[0004] Therefore, there is an urgent need for a reliable handheld control switch structure with waterproof, dustproof and drop-proof functions to adapt to long-term stable use in complex environments. Utility Model Content

[0005] To address or partially address the problems existing in related technologies, this application provides a handheld control switch that is waterproof, dustproof, and drop-proof, thereby improving reliability.

[0006] This application provides a handheld control switch, including: a housing, a circuit board assembly, and a resilient seal; The housing includes a front shell and a bottom shell connected to the front shell, the front shell and the bottom shell together forming a receiving cavity, and the circuit board assembly is disposed in the receiving cavity; The elastic seal is annular and is sandwiched between the front shell and the bottom shell to seal the front shell and the bottom shell. The resilient seal protrudes at least partially outward from the housing to form a buffer section.

[0007] Furthermore, the outer periphery of the elastic seal protrudes outward from the outer periphery of the housing and forms the buffer portion surrounding the housing, which is attached to the outer side wall of the housing.

[0008] Furthermore, the elastic seal is provided with slots on both sides, the edge of the face shell is engaged in the slot on one side, and the edge of the bottom shell is engaged in the slot on the other side.

[0009] Furthermore, the resilient seal is provided with a wire hole for a wire to pass through, the wire being electrically connected to the circuit board assembly.

[0010] Furthermore, the elastic seal is provided with a wrapping portion that extends along the conductor and wraps around the conductor, and the face shell and the bottom shell clamp the wrapping portion.

[0011] Furthermore, the circuit board assembly is provided with an indicator light, the elastic seal includes a light guide portion disposed relative to the indicator light, the faceplate is provided with an opening, and the light guide portion is tightly fitted into the opening.

[0012] Furthermore, the resilient seal is made of rubber or silicone.

[0013] Furthermore, the elastic seal is a one-piece molded structure; or The resilient seal comprises two or more sealing components.

[0014] Furthermore, the faceplate is provided with buttons, which are connected to the circuit board assembly.

[0015] Furthermore, a limiting member is provided between the circuit board assembly and the faceplate, and the limiting member is sleeved on the button.

[0016] The technical solution provided in this application can include the following beneficial effects: by clamping the annular elastic seal between the front and back shells, an effective seal is achieved at the shell joint, preventing moisture and dust from entering the internal cavity from the shell connection, protecting the circuit board assembly from moisture and dirt, thereby significantly improving the product's service life and reliability in harsh environments; at the same time, the elastic seal protrudes outward at least partially to form a buffer, so that when the switch is accidentally dropped, the impact force can be preferentially absorbed and buffered by the protruding elastic body, effectively reducing the impact transmitted to the internal circuit board assembly, avoiding damage caused by vibration, and achieving multiple protective effects of waterproofing, dustproofing and drop protection.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0019] Figure 1 This is a schematic diagram of the structure of a handheld control switch shown in an embodiment of this application; Figure 2This is an exploded view of a handheld control switch shown in an embodiment of this application; Figure 3 This is a cross-sectional schematic diagram of a handheld control switch shown in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the elastic seal shown in the embodiments of this application.

[0020] Figure label: 1-House, 11-Face shell, 12-Bottom shell, 2-Circuit board assembly, 21-Indicator light, 3-Elastic seal, 31-Buffer, 32-Slot, 33-Wrap-up part, 34-Light guide part, 4-Button, 5-Limiting part, 6-Wire. Detailed Implementation

[0021] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0022] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship 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.

[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0026] like Figures 1 to 4 As shown, this application embodiment provides a handheld control switch, including a housing 1, a circuit board assembly 2, and an elastic seal 3. The housing 1 includes a front shell 11 and a bottom shell 12 connected to the front shell 11, the front shell 11 and the bottom shell 12 together forming a receiving cavity, and the circuit board assembly 2 is disposed within the receiving cavity. The elastic seal 3 is annular and is clamped between the front shell 11 and the bottom shell 12 to seal the front shell 11 and the bottom shell 12. The elastic seal 3 at least partially protrudes outward from the housing 1 to form a buffer portion 31.

[0027] Through the above-described solution, the annular elastic seal 3 forms a reliable sealing barrier at the connection between the front shell 11 and the bottom shell 12, effectively preventing moisture and dust from entering the internal cavity through the seams of the shell 1, protecting the circuit board assembly 2 from corrosion and contamination, thereby significantly improving the product's service life in harsh environments such as humid and dusty conditions. Simultaneously, the outwardly protruding buffer 31 can preferentially contact the impact surface when the switch is accidentally dropped, absorbing and dispersing the impact energy through elastic deformation, greatly reducing the vibration transmitted to the internal circuit board, effectively preventing component damage caused by drop impacts, and comprehensively achieving multiple protective effects of waterproofing, dustproofing, and drop resistance. The destructive force generated when the product is dropped from all four sides is greater than the damage from impacts from both sides; the buffer 31 around the perimeter provides shock absorption, effectively ensuring the product's reliability.

[0028] In some embodiments, such as Figures 1 to 4 As shown, the outer periphery of the elastic seal 3 protrudes outward from the outer periphery of the housing 1 and forms a buffer portion 31 surrounding the housing 1. The buffer portion 31 is attached to the outer side wall of the housing 1.

[0029] The surrounding buffer 31 forms a comprehensive protective ring. When the switch falls from any angle, whether it lands on its side or at a sharp angle, the protruding buffer 31 will make contact with the ground first, providing cushioning protection for the entire outer wall of the housing 1. This design is particularly effective in protecting the sharp corners of the housing 1, which are most sensitive to drops, further reducing the risk of the housing 1 breaking due to impact and the internal circuitry being damaged by vibration, thus enhancing the overall impact resistance of the product.

[0030] To further improve sealing reliability and facilitate assembly, this application provides a specific method for fixing the elastic seal 3. For example... Figure 4 As shown, in some embodiments, the elastic seal 3 is provided with slots 32 on both opposite sides, that is, the elastic seal 3 is provided with slots 32 on both sides facing the front shell 11 and facing the bottom shell 12, the edge of the front shell 11 is engaged in the slot 32 on one side, and the edge of the bottom shell 12 is engaged in the slot 32 on the other side.

[0031] This snap-fitting mechanism, where the groove 32 engages with the edges of the face shell 11 and the bottom shell 12, pre-positions the elastic seal 3 between the face shell 11 and the bottom shell 12 during assembly, preventing misalignment and facilitating subsequent tightening. Simultaneously, the double-sided snap-fit ​​structure ensures uniform pressure on the elastic seal 3 from both the face shell 11 and the bottom shell 12, guaranteeing balanced pressure along the entire annular contact surface. This results in a more stable and reliable sealing effect, effectively preventing water and dust leakage caused by insufficient local pressure.

[0032] To address the sealing and cable protection issues at the power cord inlet, this application embodiment extends the functionality of the elastic seal 3. For example... Figure 3 and Figure 4 As shown, in some embodiments, the resilient seal 3 is provided with a wire hole for the wire 6 to pass through, and the wire 6 is electrically connected to the circuit board assembly 2.

[0033] The wire hole design allows the wires 6 that supply power or transmit signals to the circuit board to be led out in a centralized and orderly manner. The elastic seal 3 fits tightly against the wire 6 where it passes through the wire hole, forming a sealed wire passage structure. This successfully seals off the potential water and dust ingress channel on the housing 1, achieving a complete seal of the switch and fundamentally solving the problem of internal moisture absorption caused by poor sealing at the cable entry point in traditional handheld switches.

[0034] Please continue reading. Figure 3 and Figure 4 The embodiments of this application further enhance the protection of the conductor 6. In some embodiments, the elastic seal 3 is provided with a wrapping portion 33 that extends along the conductor 6 and wraps around the conductor 6, and the face shell 11 and the bottom shell 12 hold the wrapping portion 33.

[0035] Specifically, a portion of the wrapping part 33 extends into the receiving cavity of the housing 1 along the infeeding direction of the wire 6, and the front shell 11 and the bottom shell 12 clamp this portion of the wrapping part 33; the other portion of the wrapping part 33 extends along the outfeeding direction of the wire 6 and is located outside the housing 1.

[0036] The wrapping part 33 provides flexible, all-around grip and protection for the section of wire 6 adjacent to the housing 1. The clamping force of the face shell 11 and the bottom shell 12 ensures that the wrapping part 33 tightly wraps the wire 6. This not only greatly enhances the pull-out force of the wire 6 at the exit, preventing it from falling off due to accidental pulling, but more importantly, this structure provides a stress buffer area for the wire 6, effectively eliminating the fatigue stress generated by repeated bending of the wire 6 at the switch inlet, fundamentally preventing the wire 6 from breaking at this point and extending the service life of the cable.

[0037] To achieve the status indication function of the switch without compromising the overall sealing performance, the embodiments of this application integrate optical functions into the elastic seal 3. For example... Figure 2 and Figure 4 As shown, in some embodiments, the circuit board assembly 2 is provided with an indicator light 21, the elastic seal 3 includes a light guide portion 34 disposed opposite to the indicator light 21, the faceplate 11 is provided with an opening, and the light guide portion 34 is tightly fitted into the opening.

[0038] The light guide 34 can be made of a light-transmitting elastic material (such as transparent or translucent silicone). As a light-conducting medium, it transmits the light emitted by the indicator light 21 on the circuit board to the outside of the housing 11 for the user to observe. Since the light guide 34 is itself part of the elastic seal 3 and fits tightly with the opening of the housing 11, it not only achieves the light guiding function but also ensures the sealing of the opening. There is no need to open an additional sealing interface for this function, which simplifies the structure and maintains the complete waterproof and dustproof performance of the housing 1.

[0039] Optionally, the elastic seal 3 is made of rubber or silicone. Rubber and silicone materials combine good elasticity, durability, and sealing performance. They can deform sufficiently under external force to achieve a tight seal and return to their original shape after the external force is removed. In particular, silicone has excellent resistance to high and low temperatures, aging resistance, and non-toxicity, making it an ideal material for manufacturing such components that combine sealing, cushioning, and potentially light-guiding functions, ensuring the long-term reliability and safety of the product.

[0040] The structural form of the resilient seal 3 can be selected according to actual production needs and processes. In some embodiments, the resilient seal 3 is a one-piece molded structure. A one-piece molded structure means that the entire resilient seal 3 is a complete, seamless part. This structure has the highest sealing reliability because it completely eliminates the risk of leakage that may occur at joints. At the same time, the one-piece design is also easy to manufacture and assemble, and has a lower cost. Another alternative is that the resilient seal 3 includes two or more sealing components.

[0041] In other embodiments, the resilient seal 3 can be assembled from multiple sealing components, achieving the same annular sealing and cushioning function. This modular design may offer greater flexibility in certain complex housing 1 structures or specific installation spaces, providing more options for production and design, and is also within the scope of this invention.

[0042] In some embodiments, such as Figures 1 to 3 As shown, the front cover 11 is equipped with a button 4, which is connected to the circuit board assembly 2. By pressing the button 4 on the front cover 11, the user can trigger the internal circuit board assembly 2. The circuit board assembly 2 then generates a corresponding control signal (such as for controlling the raising and lowering of the roller shutter motor) and transmits it to an external device through the wire 6 to complete the control operation.

[0043] To ensure the stability and accuracy of button 4 operation, this embodiment of the application includes a limiting structure. For example... Figure 2 and Figure 3 As shown, in some embodiments, a limiting member 5 is provided between the circuit board assembly 2 and the faceplate 11, and the limiting member 5 is sleeved on the button 4.

[0044] The limiting member 5, made of plastic or rubber, can be fixed between the circuit board and the front cover 11. The button 4 passes through the slot in the limiting member 5. The function of the limiting member 5 is to limit and seal the button 4, preventing it from tilting, shaking, or getting stuck during pressing, ensuring that each press accurately and smoothly triggers the microswitch on the circuit board. This improves the quality of the operating feel and also protects the seal of the handheld control switch.

[0045] The front shell 11 and the bottom shell 12 can be fixedly connected by bolts, and the circuit board assembly 2 can be fixedly connected to the front shell 11 or the bottom shell 12 by bolts.

[0046] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.

[0047] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A handheld control switch, characterized in that, include: Housing, circuit board assembly, and resilient seals; The housing includes a front shell and a bottom shell connected to the front shell, the front shell and the bottom shell together forming a receiving cavity, and the circuit board assembly is disposed in the receiving cavity; The elastic seal is annular and is sandwiched between the front shell and the bottom shell to seal the front shell and the bottom shell. The resilient seal protrudes at least partially outward from the housing to form a buffer section.

2. The handheld control switch according to claim 1, characterized in that: The outer periphery of the elastic seal protrudes outward from the outer periphery of the housing and forms the buffer portion surrounding the housing, which is attached to the outer side wall of the housing.

3. The handheld control switch according to claim 1, characterized in that: The elastic seal has slots on both sides, the edge of the face shell is engaged in the slot on one side, and the edge of the bottom shell is engaged in the slot on the other side.

4. The handheld control switch according to claim 1, characterized in that: The resilient seal has a wire hole for a wire to pass through, and the wire is electrically connected to the circuit board assembly.

5. The handheld control switch according to claim 4, characterized in that: The elastic seal has a wrapping portion that extends along the conductor and wraps around the conductor, and the face shell and the bottom shell clamp the wrapping portion.

6. The handheld control switch according to claim 1, characterized in that: The circuit board assembly is provided with an indicator light, the elastic seal includes a light guide portion disposed relative to the indicator light, the faceplate is provided with an opening, and the light guide portion is tightly fitted into the opening.

7. The handheld control switch according to claim 1, characterized in that: The elastic seal is made of rubber or silicone.

8. The handheld control switch according to claim 1, characterized in that: The elastic seal is a one-piece molded structure; or The resilient seal comprises two or more sealing components.

9. The handheld control switch according to claim 1, characterized in that: The faceplate is provided with a button, which is connected to the circuit board assembly.

10. The handheld control switch according to claim 9, characterized in that: A limiting member is provided between the circuit board assembly and the faceplate, and the limiting member is sleeved on the button.

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