Electric tool switch with waterproof structure

Abstract

The utility model discloses an electric tool switch with a waterproof structure, which comprises a shell, a switch main body and an operation button, the switch main body is arranged in the shell, the operation button is arranged on the switch main body, a water baffle extends out of the inner wall of the shell, and the water baffle is arranged on the inner wall of the shell. The water baffle comprises a bottom plate extending from the inner wall of the shell and a side plate extending upwards from the edge of the bottom plate, a water blocking space is formed between the side plate and the bottom plate, a plurality of drainage grooves are annularly distributed in the shell in an array mode, the drainage grooves are communicated with the water blocking space, the edge of the operation button extends downwards to form an extension plate, and the extension plate is communicated with the water blocking space. The upper surface of the bottom plate is an inclined face inclining downwards, and the lowest point of the upper surface of the bottom plate is flush with the drainage groove.

Description

Technical Field

[0001] This application relates to the field of power tool switch technology, and in particular to power tool switches with a waterproof structure. Background Technology

[0002] Power tools (such as electric drills and angle grinders) are increasingly used in construction and decoration, and their working environments often face the risk of dust and water intrusion. As a core control component of power tools, switches are susceptible to contact oxidation, short circuits, and even equipment failure if water seeps into them. Therefore, improving the waterproof performance of switches is one of the key technologies to ensure the reliability of power tools.

[0003] Existing waterproof switches generally use a tight housing to enclose the internal components. In order to improve waterproofness, the operating gap between the operating button and the housing is small. On the one hand, the tight encapsulation is often accompanied by a small operating gap between the operating button and the housing, which may increase the risk of small debris (usually dust) accumulating and affecting the normal operation of the switch. On the other hand, the operating button and internal components require high installation precision, resulting in high installation and production costs, and are difficult to disassemble when repairing or replacing internal components.

[0004] Based on this, this application aims to solve the above problems and also provide a waterproof power tool switch.

[0005] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0006] Based on this, this application provides a power tool switch with a waterproof structure to solve one of the aforementioned technical problems.

[0007] The technical solution adopted by this application to solve its technical problem is: a power tool switch with a waterproof structure, including: a housing, a switch body, and an operating button. The switch body is disposed inside the housing, and the operating button is mounted on the switch body. A water baffle extends from the inner wall of the housing. The water baffle includes a bottom plate extending from the inner wall of the housing and a side plate extending upward from the edge of the bottom plate. A water-blocking space is formed between the side plate and the bottom plate. A plurality of drainage grooves are arranged in an array around the housing. The drainage grooves communicate with the water-blocking space. An extension plate extends downward from the edge of the operating button.

[0008] In some embodiments, the upper surface of the base plate is a downward-sloping surface, and the lowest point of the upper surface of the base plate is flush with the drainage groove.

[0009] In some embodiments, the length extension plate of the operating knob is close to the inner wall of the shell, and the width extension plate of the operating knob has a gap with the inner wall of the shell.

[0010] In some embodiments, the shells are arranged in pairs and are fixed by fasteners.

[0011] In some embodiments, a plug-in groove is arranged on one shell, and a plug-in block matching the plug-in groove is arranged on the other shell, and when the two shells are fixed together, the plug-in block is inserted into the plug-in groove.

[0012] The application has the advantages that the bottom plate and the side plate are arranged in the shell, the water flow (drop) enters through the gap between the operating knob and the shell, is blocked by the bottom plate and the side plate, is intercepted in the water blocking space, and is discharged from the shell to the outside through the drain groove, so that the water-proof effect is achieved through the drain structure, the operating knob has low installation precision, the gap between the operating knob and the shell can prevent the accumulation of sundries and affect the operation of the switch (the gap is large, and the dust entering the gap can be naturally discharged in daily use), and the two shells are spliced by the fasteners, so that the two shells can be more conveniently disassembled when the internal components are replaced or repaired. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0014] Figure 1 is a perspective view of the application.

[0015] Figure 2 is an exploded view of the application.

[0016] Figure 3 is a cross-sectional view of the operating knob and the shell of the application.

[0017] Figure 4 is a shell view of the application.

[0018] Figure 5 is a cross-sectional view of the shell of the application.

[0019] Explanation of reference signs: 1, shell, 2, switch body, 3, operating knob, 4, bottom plate, 5, side plate, 6, water blocking space, 7, drain groove, 8, extension plate, 9, fastener, 10, plug-in groove, 11, plug-in block. DETAILED DESCRIPTION

[0020] 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 are only part 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 a person of ordinary skill in the art without creative effort belong to the protection scope of the present application. In addition, the technical solutions in each embodiment can be combined with each other, but the combination of the technical solutions should be based on the fact that a person of ordinary skill in the art can realize the combination, and when the combination of the technical solutions appears contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist and is not within the protection scope of the present application.

[0021] In the embodiments of the present application, please refer to Figures 1-5 The electric tool switch with the waterproof structure mainly comprises a shell 1, a switch main body 2 and an operating knob 3. The switch main body 2 is arranged in the shell 1, and the operating knob 3 is installed on the switch main body 2. A water baffle is extended on the inner wall of the shell 1. The water baffle comprises a bottom plate 4 extended from the inner wall of the shell 1 and a side plate 5 extended upward from the edge of the bottom plate 4. A water blocking space 6 is formed between the side plate 5 and the bottom plate 4. A plurality of drainage grooves 7 are arranged in an array on the shell 1. The drainage grooves 7 are communicated with the water blocking space 6. An extension plate 8 is extended downward at the edge of the operating knob 3. The extension plate 8 is located directly above the water blocking space 6 or partially arranged in the water blocking space 6. The water from outside can directly flow into the water blocking space 6 or flow into the water blocking space 6 under the block and guide of the extension plate 8 and then be drained out of the switch through the drainage grooves 7. The water blocking and waterproof effects are effectively achieved, and the internal components are protected. In addition, the drainage grooves 7 can also play a role in ventilation, so that the inside of the switch remains relatively dry and plays a role in heat dissipation. When the switch is installed on the electric tool, the drainage grooves 7 need to be exposed outside the electric tool to facilitate water drainage without affecting the electronic components inside the electric tool. In a specific electric tool adapted to the switch, the drainage grooves 7 do not need to be exposed.

[0022] Some preferred / modified embodiments based on the above embodiments will be described below. The following embodiments can be selected or combined.

[0023] As Figure 5As shown in the drawings, the upper surface of the bottom plate 4 is inclined downward, and the lowest point of the upper surface of the bottom plate 4 is flush with the drain groove 7. After entering the water-blocking space 6, a small amount of water evaporates naturally. Under the blocking of the extension plate 8, the water vapor does not affect the internal components and naturally escapes upward. When the power tool is used in a humid environment, more water flows into the water collection space through the gap between the operating knob 3 and the shell 1, and is then discharged through the plurality of drain grooves 7. In addition, the drain grooves 7 are preferably inclined downward to better drain water. The conventional drain grooves 7 in the example of the present application are horizontally arranged.

[0024] As shown in the drawings, Figure 3 The extension plate 8 of the operating knob 3 in the length direction is in close contact with the inner wall of the shell 1, and the extension plate 8 of the operating knob 3 in the width direction has a certain gap with the inner wall of the shell 1. The relatively large gap reduces the installation accuracy of the operating knob 3 and effectively prevents debris from accumulating in the small gap and affecting operation. When operating the operating knob 3 on one side, the extension plate 8 on that side is inclined and contacts the side plate 5, and the extension plate 8 on the other side is inclined and contacts the inner wall of the shell 1. Water can always be guided into the water collection space or directly blocked outside, effectively preventing water from flowing into the switch body 2. It should be noted that the switch body 2 in the present application includes all necessary components outside the operating knob 3 and the shell 1, such as contacts, springs, and paddles. Since they are not related to the waterproof structure of the present application, they are not shown in the drawings. That is, the switch body 2 is the part that needs to be waterproofed.

[0025] As shown in the drawings, Figure 2 and Figure 4 The shell 1 is arranged in pairs, and the two shells 1 are fixed together by fasteners 9. The internal components of the traditional switch are not easy to disassemble, and if the internal components are damaged, the entire switch needs to be replaced, which has a short service life. The detachable shell 1 can facilitate the repair and replacement of internal components and prolong the service life of the overall switch.

[0026] Further, a plug-in groove 10 is formed on one of the shells 1, and a plug-in block 11 matching the plug-in groove 10 is formed on the other shell 1. When the two shells 1 are fixedly connected together, the plug-in block 11 is inserted into the plug-in groove 10. The cooperation of the plug-in groove 10 and the plug-in block 11 makes the installation of the shell 1 more convenient.

[0027] Thus, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0028] Finally, it should be noted that the above is only the preferred embodiment of the application, the foregoing embodiments are only to illustrate the technical solutions of the application, not to limit them; although the application is described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the technical solutions described in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not drive the essence of the corresponding technical solutions out of the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. An electric tool switch having a waterproof structure, comprising a housing, a switch main body, and an operation knob, characterized by, The switch body is arranged in the shell, the operation knob is arranged on the switch body, a water baffle is extended from the inner wall of the shell, the water baffle comprises a bottom plate extended from the inner wall of the shell and a side plate extended upward from the edge of the bottom plate, a water blocking space is formed between the side plate and the bottom plate, a plurality of drainage grooves are arranged on the shell in an array, the drainage grooves are communicated with the water blocking space, and an extension plate is extended downward at the edge of the operation knob.

2. The electric power tool switch having a waterproof structure according to claim 1, characterized by, The upper surface of the bottom plate is an inclined downward inclined surface, and the lowest point of the upper surface of the bottom plate is flush with the drainage groove.

3. The electric power tool switch having a waterproof structure according to claim 1, characterized by, The extension plate in the length direction of the operation knob is close to the inner wall of the shell, and the extension plate in the width direction of the operation knob has a certain gap with the inner wall of the shell.

4. The electric power tool switch having a waterproof structure according to claim 1, characterized by, The shells are arranged in pairs and are fixed by fasteners.

5. The electric power tool switch having a waterproof structure according to claim 4, characterized by, A plug-in groove is formed in one of the shells, a plug-in block matched with the plug-in groove is formed on the other shell, and when the two shells are fixedly connected together, the plug-in block is inserted into the plug-in groove.

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