Waterproof switch assembly of motor limiter

Abstract

The utility model relates to a waterproof switch assembly of a motor limiter. The technical problem that an existing motor switch button is short in service life is solved. The limiting device is arranged on a motor and comprises a fixing sleeve, a supporting body and a limiting device upper base located at the upper end of the supporting body are arranged at the upper end of the fixing sleeve, a switch circuit board with a switch key is installed in the fixing sleeve, and a flexible waterproof sleeve covering the switch circuit board is arranged at the upper end of the fixing sleeve. A switching rod is vertically and movably arranged in the supporting body, a pressing base corresponding to the switch key is arranged at the lower end of the switching rod, a key body is horizontally and movably arranged in the upper limiting stopper base, and a key direction switching mechanism capable of driving the switching rod to vertically ascend and descend when the key body horizontally moves under external force is arranged between the key body and the switching rod. The switch has the advantages that the button body controls the change-over lever through the button direction change-over mechanism, dust and moisture can be prevented from directly invading the switch circuit board, and the service life is prolonged. The flexible waterproof sleeve can improve waterproof and dustproof effects of the switch circuit board.

Description

Technical Field

[0001] This utility model belongs to the technical field of motor switch equipment, specifically relating to a waterproof switch assembly for a motor limit switch. Background Technology

[0002] In the smart home field, curtain motors are key components for automating curtain opening and closing, and their ease of operation and stability are crucial. Existing curtain motor switches mostly use traditional mechanical button structures, with the buttons mounted on the housing and a gap between them. In daily use, especially in humid and dusty areas like bathrooms and kitchens, moisture and dust can easily penetrate the buttons through these gaps. Moisture intrusion can cause the metal contacts on the internal circuit board to rust and short-circuit, affecting the button's conductivity and leading to malfunctions or even complete motor failure. Furthermore, fine particles like dust in the air can also enter through these gaps, accumulating inside the button, affecting its normal use, reducing its lifespan, increasing user costs, and impacting the user experience. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing a waterproof switch assembly for a motor limit switch.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: A waterproof switch assembly for a motor limiter is installed on a motor, including a fixed sleeve, a support body at the upper end of the fixed sleeve, and a limiter upper seat located at the upper end of the support body. A switch circuit board with a switch button is installed inside the fixed sleeve, and a flexible waterproof sleeve covering the switch circuit board is provided at the upper end of the fixed sleeve. A conversion rod is vertically movable inside the support body, and a pressing seat corresponding to the switch button is located above the flexible waterproof sleeve at the lower end of the conversion rod. A button body with one end protruding outside the limiter upper cover is horizontally movable inside the limiter upper seat. A button direction conversion mechanism is provided between the button body and the conversion rod, which can drive the conversion rod to move vertically up and down when the button body is subjected to external force and moves horizontally. The flexible waterproof sleeve can provide waterproof protection for the switch circuit board, improving the service life of the switch circuit board. The button direction conversion mechanism facilitates the button body to press and push the conversion rod, making it convenient for users to operate and improving the user experience.

[0005] In the aforementioned waterproof switch assembly for a motor limiter, the upper seat of the limiter is provided with a horizontally arranged movable groove. One end of the movable groove has a button hole, and the button body is movably disposed in the movable groove through a button elastic reset structure. One end of the button body has a button pressing part that extends out of the button hole. The movable groove facilitates the installation and placement of the button body, and the button elastic reset structure enables the pressed button body to automatically reset, improving the user experience. Furthermore, the button hole and the button pressing part facilitate user control of the button body.

[0006] In the aforementioned waterproof switch assembly of a motor limiter, the button elastic reset structure includes a button reset spring sleeved on the button body. One end of the button reset spring abuts against the button limiting part on the outer circumference of the button body, and the other end acts on the end of the horizontal movable groove away from the button hole. The button limiting part can limit the button body to prevent the button body from exceeding the horizontal movable groove, and the button reset spring can drive the button body to automatically reset through the button limiting part.

[0007] In the aforementioned waterproof switch assembly for a motor limiter, the upper seat of the limiter is provided with a vertically positioned vertical movable hole whose upper end is connected to one end of a horizontal movable groove. The conversion rod is set in the vertical movable hole through a conversion rod elastic reset structure. The vertical movable hole has a non-circular structure, and the cross-section of the conversion rod matches the vertical movable hole. The support body is provided with an arc-shaped hole for the conversion rod to pass through. The arc-shaped hole facilitates the movable setting of the conversion rod, the vertical movable hole guides the conversion rod, and the conversion rod elastic reset structure enables the conversion rod to automatically reset after being pressed, improving the user experience.

[0008] In the aforementioned waterproof switch assembly of a motor limiter, the elastic reset structure of the switching rod includes a vertical movable groove disposed at the upper end of a vertical movable hole and connected to the vertical movable hole. The vertical movable groove is connected to a horizontal movable groove at one end. The upper end of the switching rod has a movable end that is movably disposed within the vertical movable groove. A switching rod reset spring is sleeved on the switching rod. One end of the switching rod reset spring acts on the lower end of the movable end and the other end acts on the bottom of the vertical movable groove. The size of the movable end is larger than the size of the switching rod, and the movable end can limit the vertical movement stroke of the switching rod through the vertical movable groove. Furthermore, the switching rod reset spring can automatically reset the movable end when it is pressed, thereby driving the switching rod to reset and improving the reset efficiency of the switching rod.

[0009] In the aforementioned waterproof switch assembly for a motor limiter, the button direction conversion mechanism includes a conversion groove disposed on one side of the movable end. One end of the button body extends into the vertical movable groove and is movably inserted into the conversion groove. A button direction conversion component is provided between the movable end and the button body. The conversion groove facilitates the extension of the button body into the movable end and enables control of the conversion rod. The button direction conversion component allows the movable end to move vertically downward when the button body is pressed, ensuring the displacement effect of the conversion rod.

[0010] In the aforementioned waterproof switch assembly for a motor limiter, the button direction conversion assembly includes a first inclined surface disposed within a conversion groove and inclined thereon. One end of the button body has a second inclined surface that cooperates with the first inclined surface, and the first and second inclined surfaces slide in cooperation. The first and second inclined surfaces ensure that the horizontal displacement of the button body can drive the vertical displacement of the conversion rod, thus achieving the displacement conversion effect.

[0011] In the aforementioned waterproof switch assembly for a motor limiter, a button actuator is movably provided on the inner side of the lower end of the switching rod, extending through the lower end of the pressing seat. A magnet corresponding to the switch circuit board is provided on one side of the pressing seat, and the switch circuit board is a Hall switch circuit board. The button actuator is fixedly connected to the pressing seat by bolts, and the magnet and the Hall switch circuit board are Hall switches. The magnet can change its magnetism according to the change in the movement state of the switch circuit board and the motor, thereby ensuring the switching control effect of the motor.

[0012] In the aforementioned waterproof switch assembly for a motor limiter, the upper end of the fixing sleeve is open, and the switch circuit board is fixedly disposed inside the open end of the fixing sleeve. The switch button is disposed on the upper end of the switch circuit board and extends beyond the open end of the fixing sleeve. The open end facilitates the installation and placement of the switch circuit board, thereby improving installation efficiency.

[0013] In the aforementioned waterproof switch assembly for a motor limiter, the flexible waterproof sleeve is made of rubber. The flexible waterproof sleeve is cylindrical and fitted onto the upper end of a fixed sleeve. The upper end of the flexible waterproof sleeve has a sealing portion that closes the opening at the upper end of the fixed sleeve, and several waterproof retaining rings are arranged sequentially around the circumference of the flexible waterproof sleeve. The upper end of the sealing portion has an upward-protruding flexible pressing protrusion corresponding to the pressing seat, and the lower end of the sealing portion has a button receiving groove corresponding to the flexible pressing protrusion and for inserting the switch button. The sealing portion ensures the waterproof effect of the flexible waterproof sleeve on the switch circuit board, the waterproof retaining rings improve the sealing effect, the flexible pressing protrusion facilitates the positioning of the pressing seat, and the button receiving groove facilitates the installation and placement of the switch button.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] 1. The button body controls the switching rod through the button direction conversion mechanism, which can ensure the user's control effect on the switch button, and prevent dust and moisture from directly entering the switch circuit board, thus improving the service life of the switch button.

[0016] 2. Flexible waterproof sleeves can further improve the waterproof and dustproof performance of switch circuit boards.

[0017] 3. The elastic reset structure of the buttons and the elastic reset structure of the switching lever facilitate automatic reset of the switching lever and the button body, improving the reset effect and making it easier for users to control the operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a structural cross-sectional view of the present invention.

[0020] Figure 3 This is a cross-sectional view of the upper seat of the limiter in this utility model.

[0021] Figure 4 This is an exploded view of the button direction conversion mechanism in this utility model.

[0022] Figure 5 This is an exploded view of the flexible waterproof sleeve in this utility model.

[0023] In the diagram: 1. Motor; 2. Fixed sleeve; 21. Open end; 3. Support body; 31. Conversion rod; 311. Button movable rod; 32. Pressing seat; 32. Magnet; 321. Arc-shaped hole; 33. Upper seat of limiter; 4. Button body; 41. Horizontal movable groove; 42. Button hole; 43. Button pressing part; 44. Vertical movable hole; 45. Switch circuit board; 5. Switch button; 51. Flexible waterproof sleeve; 6. Sealing part; 61. Waterproof retaining ring; 62. Flexible pressing protrusion; 63. Button receiving groove; 64. Button direction conversion mechanism; 7. Conversion groove; 71. Button direction conversion component; 72. First inclined surface; 721. Second inclined surface; 722. Button elastic reset structure; 8. Button reset spring; 81. Button limiting part; 82. Conversion rod elastic reset structure; 9. Vertical movable groove; 91. Movable end; 92. Conversion rod reset spring; 93. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a waterproof switch assembly for a motor limiter is mounted on a motor 1. It includes a fixed sleeve 2, a support body 3 at the upper end of the fixed sleeve 2, and a limiter upper seat 4 located above the support body 3. A switch circuit board 5 with a switch button 51 is installed inside the fixed sleeve 2, and a flexible waterproof sleeve 6 covers the switch circuit board 5 at the upper end of the fixed sleeve 2. A vertically movable conversion rod 31 is mounted inside the support body 3, and a pressing seat 32, located above the flexible waterproof sleeve 6 and corresponding to the switch button 51, is located at the lower end of the conversion rod 31. The pressing seat 32 can move up and down with the conversion rod 31 and can control the switch button 51, facilitating user operation. A horizontally movable limiter upper seat 4 has one end protruding from the limiter. The button body 41 on the outer side of the top cover can limit the position of the conversion rod 31 and the button body 41 through the limiter seat 4. There is a button direction conversion mechanism 7 between the button body 41 and the conversion rod 31, which can drive the conversion rod 31 to move vertically when the button body 41 is subjected to external force and moves horizontally. The flexible waterproof sleeve 6 can provide waterproof protection for the switch circuit board 5, thereby improving the service life of the switch circuit board 5. The button direction conversion mechanism 7 makes it easy for the button body 41 to press and push the conversion rod 31 to control the switch button 51, which can reduce the wear of the switch button 51 and prevent the switch button 51 and the switch circuit board 5 from being affected by moisture and dust, thereby improving the service life, facilitating user operation, and improving the user experience.

[0026] Specifically, the upper seat 4 of the limiter is provided with a horizontally set horizontal movable groove 42. One end of the horizontal movable groove 42 has a button hole 43, and the button body 41 is movably set in the horizontal movable groove 42 through the button elastic reset structure 8. One end of the button body 41 has a button pressing part 44 that extends out of the button hole 43. The horizontal movable groove 42 facilitates the installation and placement of the button body 41, and the button elastic reset structure 8 can drive the button body 41 to automatically reset after being pressed, improving the user experience. The button hole 43 and the button pressing part 44 facilitate the user's control of the button body 41.

[0027] The button elastic reset structure 8 includes a button reset spring 81 sleeved on the button body 41. One end of the button reset spring 81 abuts against the button limiting part 82 on the outer periphery of the button body 41, and the other end acts on the end of the horizontal movable groove 42 away from the button hole 43. The button limiting part 82 can limit the button body 41 to prevent the button body 41 from exceeding the horizontal movable groove 42. The button reset spring 81 can drive the button body 41 to automatically reset through the button limiting part 82.

[0028] like Figure 2 , Figure 3 , Figure 4As shown, the upper seat 4 of the limiter is provided with a vertically arranged vertical movable hole 45, the upper end of which is connected to one end of the horizontal movable groove 42. The conversion rod 31 is set in the vertical movable hole 45 through the conversion rod elastic reset structure 9. The vertical movable hole 45 has a non-circular structure and the cross section of the conversion rod 31 matches the vertical movable hole 45. The support body 3 is provided with an arc-shaped hole 33 for the conversion rod 31 to pass through. The arc-shaped hole 33 facilitates the movable setting of the conversion rod 31. The vertical movable hole 45 guides the conversion rod 31. The conversion rod elastic reset structure 9 can drive the conversion rod 31 to automatically reset after being pressed, improving the user experience.

[0029] Furthermore, the elastic reset structure 9 of the conversion rod includes a vertical movable groove 91 disposed at the upper end of the vertical movable hole 45 and connected to the vertical movable hole 45. The vertical movable groove 91 is connected to one end of the horizontal movable groove 42. The upper end of the conversion rod 31 has a movable end 92 movably disposed in the vertical movable groove 91. A conversion rod reset spring 93 is sleeved on the conversion rod 31. One end of the conversion rod reset spring 93 acts on the lower end of the movable end 92 and the other end acts on the bottom of the vertical movable groove 91. The size of the movable end 92 is larger than the size of the conversion rod 31. The movable end 92 can limit the vertical movement stroke of the conversion rod 31 through the vertical movable groove 91. The conversion rod reset spring 93 can automatically reset the movable end 92 when it is pressed, thereby driving the conversion rod 31 to reset and improving the reset efficiency of the conversion rod 31.

[0030] The button direction conversion mechanism 7 includes a conversion groove 71 disposed on one side of the movable end 92. One end of the button body 41 extends into the vertical movable groove 91 and is movably inserted into the conversion groove 71. A button direction conversion component 72 is provided between the movable end 92 and the button body 41. The conversion groove 71 facilitates the extension of the button body 31 into the movable end 92 and enables control of the conversion rod 31. The button direction conversion component 72 enables the movable end 92 to move vertically downward when the button body 41 is pressed, ensuring the displacement effect of the conversion rod 31.

[0031] Combination Figure 2 , Figure 4 , Figure 5 As shown, the button direction conversion component 72 includes a first inclined surface 721 disposed in the conversion groove 71 and inclined, and a second inclined surface 722 at one end of the button body 41 that cooperates with the first inclined surface 721. The first inclined surface 721 and the second inclined surface 722 are slidably engaged. The first inclined surface 721 and the second inclined surface 722 can ensure that the horizontal displacement of the button body 41 can drive the vertical displacement of the conversion rod 31 to achieve the displacement conversion effect.

[0032] The lower inner side of the conversion rod 31 is provided with a button movable rod 311 that extends through the lower end of the press base 32. A magnet 321 corresponding to the switch circuit board 5 is provided on one side of the press base 32. The switch circuit board 5 is a Hall switch circuit board. The button movable rod 311 and the press base 32 are fixedly connected by bolts. The magnet 321 and the Hall switch circuit board are Hall switches. The magnet 321 can change its magnetism according to the change of the movement state of the switch circuit board 5 and the motor 1, thereby ensuring the switching control effect of the motor 1.

[0033] Specifically, the upper end of the fixed sleeve 2 is open and the switch circuit board 5 is fixedly installed inside the open end 21 of the fixed sleeve 2. The switch button 51 is installed on the upper end of the switch circuit board 5 and extends beyond the open end 21 of the fixed sleeve 2. The open end 21 facilitates the installation and placement of the switch circuit board 5, thereby improving installation efficiency.

[0034] Combination Figure 2 , Figure 5 As shown, the flexible waterproof sleeve 6 is made of rubber. The flexible waterproof sleeve 6 is cylindrical and is fitted onto the upper end of the fixed sleeve 2. The upper end of the flexible waterproof sleeve 6 has a sealing part 61 that can close the opening at the upper end of the fixed sleeve 2. The flexible waterproof sleeve 6 has several waterproof retaining rings 62 arranged vertically around its circumference. The upper end of the sealing part 61 has an upwardly protruding flexible pressing protrusion 63 that corresponds to the pressing seat 32. The lower end of the sealing part 61 has a button receiving groove 64 that corresponds to the flexible pressing protrusion 63 and allows the switch button 51 to be inserted. The sealing part 61 can ensure the waterproof effect of the flexible waterproof sleeve 6 on the switch circuit board 5. The waterproof retaining rings 62 can improve the sealing effect. The flexible pressing protrusion 63 can facilitate the positioning of the pressing seat 32. The button receiving groove 64 can facilitate the installation and placement of the switch button 51.

[0035] The principle of this embodiment is as follows: the flexible waterproof sleeve 6 can easily provide waterproof protection for the switch circuit board 5, and the button direction conversion mechanism 7 can facilitate the button body 41 to control the conversion rod 31. The button elastic reset structure 8 can drive the button body 41 to automatically reset after being pressed, and the conversion rod elastic reset structure 9 can drive the conversion rod 31 to automatically reset after being pressed, thereby improving the reset efficiency.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0037] Although this article uses a lot of terms such as motor 1, fixed sleeve 2, open end 21, support body 3, conversion rod 31, button moving rod 311, pressing seat 32, magnet 321, arc hole 33, limiter upper seat 4, button body 41, horizontal moving groove 42, button hole 43, button pressing part 44, vertical moving hole 45, switch circuit board 5, switch button 51, flexible waterproof sleeve 6, sealing part 61, waterproof retaining ring 62, flexible pressing protrusion 63, button receiving groove 64, button direction conversion mechanism 7, conversion groove 71, button direction conversion component 72, first inclined surface 721, second inclined surface 722, button elastic reset structure 8, button reset spring 81, button limiting part 82, conversion rod elastic reset structure 9, vertical moving groove 91, moving end 92, conversion rod reset spring 93, etc., the possibility of using other terms cannot be excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model.

Claims

1. A waterproof switch assembly of a motor limiter, which is arranged on a motor (1) and comprises a fixing sleeve (2), a support body (3) arranged at the upper end of the fixing sleeve (2), and a limiter upper seat (4) arranged at the upper end of the support body (3), characterized in that, The fixed sleeve (2) is equipped with a switch circuit board (5) with a switch button (51), and the upper end of the fixed sleeve (2) is provided with a flexible waterproof sleeve (6) covering the switch circuit board (5). The support body (3) is vertically movable with a conversion rod (31), and the lower end of the conversion rod (31) has a pressing seat (32) located above the flexible waterproof sleeve (6) and corresponding to the switch button (51). The upper seat of the limiter (4) is horizontally movable with a button body (41) with one end exposed outside the upper cover of the limiter. The button body (41) and the conversion rod (31) are provided with a button direction conversion mechanism (7) that can drive the conversion rod (31) to move vertically up and down when the button body (41) is subjected to external force and moves horizontally.

2. A waterproof switch assembly for a motor limiter according to claim 1, wherein The upper seat (4) of the limiter is provided with a horizontally arranged horizontal movable groove (42). One end of the horizontal movable groove (42) has a button hole (43), and the button body (41) is movably arranged in the horizontal movable groove (42) through the button elastic reset structure (8), and one end of the button body (41) has a button pressing part (44) that extends out of the button hole (43).

3. A waterproof switch assembly for a motor limiter according to claim 2, wherein The button elastic reset structure (8) includes a button reset spring (81) sleeved on the button body (41). One end of the button reset spring (81) abuts against the button limiting part (82) on the outer side of the button body (41) and the other end acts on the end of the horizontal movable groove (42) away from the button hole (43).

4. A waterproof switch assembly for a motor limiter according to claim 2 or 3, wherein The upper seat (4) of the limiter is provided with a vertically arranged vertical movable hole (45) with its upper end connected to one end of the horizontal movable groove (42). The conversion rod (31) is set in the vertical movable hole (45) through the conversion rod elastic reset structure (9). The vertical movable hole (45) is non-circular and the cross section of the conversion rod (31) matches the vertical movable hole (45). The support body (3) is provided with an arc-shaped hole (33) through which the conversion rod (31) passes.

5. A waterproof switch assembly for a motor limiter according to claim 4, wherein The elastic reset structure (9) of the conversion rod includes a vertical movable groove (91) disposed at the upper end of the vertical movable hole (45) and connected to the vertical movable hole (45). The vertical movable groove (91) is connected to one end of the horizontal movable groove (42). The upper end of the conversion rod (31) has a movable end (92) movably disposed in the vertical movable groove (91). A conversion rod reset spring (93) is sleeved on the conversion rod (31). One end of the conversion rod reset spring (93) acts on the lower end of the movable end (92) and the other end acts on the bottom of the vertical movable groove (91).

6. A waterproof switch assembly for a motor limiter according to claim 5, wherein The button direction conversion mechanism (7) includes a conversion groove (71) disposed on one side of the movable end (92), one end of the button body (41) extends into the vertical movable groove (91) and is movably inserted into the conversion groove (71), and a button direction conversion component (72) is provided between the movable end (92) and the button body (41).

7. A waterproof switch assembly for a motor limiter according to claim 6, wherein The button direction conversion component (72) includes a first inclined surface (721) disposed in the conversion groove (71) and inclined, and one end of the button body (41) has a second inclined surface (722) that cooperates with the first inclined surface (721), and the first inclined surface (721) and the second inclined surface (722) are slidably engaged.

8. A waterproof switch assembly for a motor limiter according to claim 1, wherein The inner side of the lower end of the conversion rod (31) is provided with a button moving rod (311) that extends through the lower end of the pressing seat (32). A magnet (321) corresponding to the switch circuit board (5) is provided on one side of the pressing seat (32), and the switch circuit board (5) is a Hall switch circuit board.

9. A waterproof switch assembly for a motor limiter according to claim 1, wherein The upper end of the fixed sleeve (2) is open and the switch circuit board (5) is fixedly installed inside the open end (21) of the fixed sleeve (2), and the switch button (51) is installed on the upper end of the switch circuit board (5) and extends beyond the open end (21) of the fixed sleeve (2).

10. A waterproof switch assembly for a motor limiter according to claim 9, wherein The flexible waterproof sleeve (6) is made of rubber. The flexible waterproof sleeve (6) is cylindrical and is fitted onto the upper end of the fixed sleeve (2). The upper end of the flexible waterproof sleeve (6) has a sealing part (61) that can close the opening at the upper end of the fixed sleeve (2). The flexible waterproof sleeve (6) has several waterproof retaining rings (62) arranged vertically around its circumference. The upper end of the sealing part (61) has a flexible pressing protrusion (63) that protrudes upward and corresponds to the pressing seat (32). The lower end of the sealing part (61) has a button receiving groove (64) that corresponds to the flexible pressing protrusion (63) and allows the switch button (51) to be inserted.

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