Rotary switch assembly
By adopting the indirect connection method of the opening and closing assembly and the driven gear meshing and the elliptical structure of the elliptical disk in the rotary switch, the problems of increased operating torque and insensitive switch operation in the existing technology are solved, and smoother operation is achieved. and longer service life.
Patent Information
- Application Number
- CN202411597171.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-01-24
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing rotary switch has the problem of increased operating torque during operation, which leads to inconvenience in user use and is prone to damage; at the same time, the direct friction of the internal dynamic and static contacts leads to insensitive switch operation.
Adopt an indirect connection method of opening and closing components to meshing from motion tooth, drive from moving tooth through ellipse discs and active teeth to reduce the user's operating torque, and reduce between the moving contact and the static contact connector through the elliptical structure of the ellipsoid disc. Direct friction.
It reduces the resistance of the elastic energy storage unit to the switch, improves the smoothness of the switch, extends the service life of the moving contact and static contact connectors, and enhances the mechanical strength and stability of the switch assembly and driven teeth. .
Smart Images
Figure CN119361364A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of electrical equipment, and in particular relates to a rotary switch assembly. Background Art
[0002] The rotary switch is a common electronic component, often used for circuit control and connection in electronic equipment. Its main function is to switch different connection states in the circuit through rotation operation to turn the circuit function on and off.
[0003] The rotary switch of the prior art has the following problems:
[0004] First, most rotary switches have built-in elastic energy storage units, whose main purpose is to reset the switch, that is, when the external force disappears, the switch can automatically return to its initial position. The elastic energy storage unit mainly stores force by closing the switch. The presence of the elastic unit will change the operating torque of the rotary switch, that is, the resistance felt by the user when rotating the switch increases, so the user needs to rotate the switch with force, which not only reduces the user's experience, but also easily damages the rotating head;
[0005] Second, when the rotary switch is closed or opened, direct friction will occur between the internal moving and static contacts, which can easily cause the internal contacts to loosen and lead to insensitive switch operation. Summary of the invention
[0006] The purpose of the present invention is to provide a rotary switch assembly to solve the technical problems in the prior art in view of the shortcomings of the prior art.
[0007] The object of the present invention can be achieved by the following technical scheme: a rotary switch assembly, comprising a base and a switch assembly rotatably mounted thereon, the base comprising a working cavity and a contact slot, a driven tooth is slidably mounted inside the working cavity, a moving contact is mounted on the central axis of the driven tooth, a stationary contact contact piece and a stationary contact connecting piece are mounted inside the contact slot, and the stationary contact connecting piece is connected to the side wall of the contact slot through a compensation spring;
[0008] The opening and closing assembly includes an elliptical disk and a push ring and a driving tooth installed thereon. The driving tooth is arranged along the edge of the elliptical disk, and the driving tooth is meshed with the driven tooth. A sleeve block is sleeved on the rotating shaft at the bottom of the driven tooth. An eccentric block is installed at the bottom of the elliptical disk for rotation. The sleeve block and the eccentric block are connected by a force storage spring.
[0009] As a further optimization or improvement of the present solution, the base also includes a contact slot, in which a wiring terminal is installed, one end of the wiring terminal is connected to the static contact piece, and the other end of the wiring terminal is connected to the wiring, and the wiring passes through a reserved hole on the wire control board.
[0010] As a further optimization or improvement of the present solution, the base further comprises a mounting groove, a slot is mounted inside the mounting groove, and the static contact piece is inserted into the slot.
[0011] As a further optimization or improvement of the present solution, the base further includes a pressing groove, and the opening and closing assembly is located in the pressing groove and rotates.
[0012] As a further optimization or improvement of the present solution, the base further includes a slide groove, and the rotating shaft of the driven tooth is installed in the slide groove.
[0013] As a further optimization or improvement of the present solution, the opening and closing assembly further comprises a ratchet, which is rotatably mounted inside the base and abuts against the active tooth. A compression spring is mounted at the bottom of the rotating shaft of the elliptical disk and is connected to the compression groove.
[0014] As a further optimization or improvement of the present solution, a retaining ring is provided on the edge of the elliptical disk; the active teeth on the elliptical disk are driven to move downward synchronously by pressing the elliptical disk, so that the ratchet teeth are disengaged from the active teeth, and the ratchet teeth disengaged from the active teeth abut against the retaining ring.
[0015] As a further optimization or improvement of this solution, the ratchet is connected to the base via a connecting spring.
[0016] As a further optimization or improvement of the present solution, a cover plate is installed on the working chamber, the contact slot and the mounting slot.
[0017] Beneficial effects of the present invention:
[0018] 1 This solution replaces the direct rotary switch mode with an indirect connection mode in which the opening and closing component is meshed with the driven teeth. The switch is closed by pushing the push ring, and then the user's operating torque is reduced according to the set gear ratio of the active tooth and the driven tooth, thereby improving the smoothness when closing the switch and greatly reducing the resistance of the elastic energy storage unit to the closing switch. At the same time, the active tooth and the driven tooth have strong mechanical strength and stability, and the opening and closing component and the driven tooth are not easily damaged.
[0019] 2 The present invention uses the elliptical structure of the elliptical disk itself, and the active tooth drives the driven tooth to rotate while pushing the driven tooth toward the direction of the stationary contact piece, so that the moving contact on the driven tooth is contacted and connected with the stationary contact connecting piece under the push of the elliptical disk, reducing the direct friction between the moving contact and the stationary contact connecting piece, and increasing the service life of the moving contact and the stationary contact connecting piece;
[0020] Specifically, the compensation spring on the static contact connector can provide connection compensation for the moving contact and the static contact connector, that is, when the temperature rise of the switch is high, the material elasticity of the moving contact and the static contact connector will weaken, and the contact pressure will decrease. The pressure between the moving contact and the static contact connector is increased by moving the moving tooth and the moving contact thereon toward the static contact connector, while reducing the direct friction between the moving contact and the static contact connector.
[0021] 3 During the process of closing the switch, if the switch cannot be closed by rotating the oval disk at one time, the ratchet will limit the oval disk, so that the storage spring is in a stretched state, which is convenient for pushing the push ring to close the switch for the second time;
[0022] Specifically, due to the elliptical structure of the elliptical disk itself, when the elliptical disk is rotated through the cooperation between the active teeth and the ratchet teeth, the active teeth will compress the rebound stroke of the ratchet teeth, causing the rebound stroke of the ratchet teeth to become smaller and smaller. When the moving contact and the static contact connector are connected, the active teeth will press the ratchet teeth against the rounded corners of the edge. At this time, the ratchet teeth are stuck on the active teeth, thereby realizing automatic limiting of the elliptical disk. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The present invention will be further described below in conjunction with the accompanying drawings.
[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0025] Figure 2 Schematic diagram of the internal structure of the base.
[0026] Figure 3 It is a schematic diagram of the installation structure of the static contact connector and the static contact contact.
[0027] Figure 4 Schematic diagram of the slot structure
[0028] Figure 5 This is a schematic diagram of the wire control board structure.
[0029] Figure 6 It is a schematic diagram of the coordination structure between the opening and closing component and the driven gear.
[0030] Figure 7 It is a schematic diagram of the bottom structure of the opening and closing assembly and the driven gear.
[0031] Figure 8 This is the diagram of the coordination between the ratchet and the active tooth.
[0032] Fig. 9 for Figure 8 Schematic diagram of the structure of part A.
[0033] Fig.10 This is a schematic diagram of the retaining ring installation position.
[0034] Fig.11 This is the coordination diagram of the opening and closing components and the pressing groove.
[0035] The following are marked in the figure: 1. Base; 101. Working chamber; 102. Mounting slot; 103. Contact slot; 104. Pressing slot; 105. Sliding slot; 2. Cover plate; 3. Opening and closing assembly; 301. Oval disk; 302. Push ring; 303. Driving tooth; 304. Retaining ring; 305. Ratchet; 306. Connecting spring; 307. Compression spring; 4. Driven tooth; 5. Moving contact; 6. Static contact connector; 7. Static contact contact; 8. Wiring terminal; 9. Compensation spring; 11. Slot; 12. Wire control board; 13. Socket block; 14. Eccentric block; 15. Storage spring. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0037] See also Figure 1-Figure 7 A rotary switch assembly comprises a base 1 and a switch assembly 3 rotatably mounted thereon, the base 1 comprises a working chamber 101 and a contact slot 103, a driven tooth 4 is slidably mounted inside the working chamber 101, a moving contact 5 is mounted on the central axis of the driven tooth 4, a stationary contact contact piece 7 and a stationary contact connector 6 are mounted inside the contact slot 103, and the stationary contact connector 6 is connected to the side wall of the contact slot 103 through a compensation spring 9;
[0038] The opening and closing assembly 3 includes an elliptical disk 301 and a push ring 302 and a driving tooth 303 installed thereon. The driving tooth 303 is arranged along the edge of the elliptical disk 301, and the driving tooth 303 is engaged with the driven tooth 4. A sleeve block 13 is sleeved on the rotating shaft at the bottom of the driven tooth 4. An eccentric block 14 is installed at the bottom of the elliptical disk 301. The sleeve block 13 and the eccentric block 14 are connected by a force storage spring 15.
[0039] Specifically, the base 1 also includes a contact slot 103 , in which a wiring terminal 8 is installed. One end of the wiring terminal 8 is connected to the static contact piece 7 , and the other end of the wiring terminal 8 is connected to the wiring, which passes through a reserved hole on the wire control board 12 .
[0040] Specifically, the base 1 further comprises a mounting groove 102 , a slot 11 is mounted inside the mounting groove 102 , and the static contact piece 7 is inserted into the slot 11 .
[0041] It should be noted that the present solution replaces the direct rotation closing switch mode with an indirect connection mode in which the opening and closing component 3 and the driven tooth 4 are meshed. The switch is closed by toggling the push ring 302, and then the user's operating torque is reduced according to the set gear ratio of the active tooth 303 and the driven tooth 4, thereby improving the smoothness when closing the switch. Due to the strong mechanical strength and stability of the active tooth 303 and the driven tooth 4, the opening and closing component 3 and the driven tooth 4 are not easily damaged.
[0042] When the switch needs to be closed, the push ring 302 is toggled, and the push ring 302 drives the elliptical disk 301 and the active tooth 303 on the elliptical disk 301 to rotate. Through the meshing of the active tooth 303 and the driven tooth 4, the active tooth 303 drives the driven tooth 4 to rotate, so that the moving contact 5 on the driven tooth 4 rotates toward the static contact contact piece 7. At the same time, due to the elliptical structure of the elliptical disk 301 itself, the active tooth 303 drives the driven tooth 4 to rotate and also drives the driven tooth 4 to push toward the static contact contact piece 7, so that the rotating shaft of the driven tooth 4 slides along the slide groove 105, and the storage spring 15 is stretched at the same time;
[0043] When the moving contact 5 on the driven tooth 4 approaches the static contact connector 6, the moving contact 5 is not in contact with the static contact connector 6 at first. As the elliptical disk 301 drives the driven tooth 4 toward the static contact connector 6, the moving contact 5 on the driven tooth 4 contacts with the static contact connector 6 under the action of the elliptical disk 301. Then the moving contact 5 drives the static contact connector 6 to press the compensation spring 9. When the static contact connector 6 contacts the static contact contact piece 7, the closing switch operation is completed.
[0044] In the present invention, the active tooth 303 drives the driven tooth 4 to rotate and pushes the driven tooth 4 toward the static contact contact piece 7 through the elliptical structure of the elliptical disk 301 itself, so that the moving contact 5 on the driven tooth 4 is in contact and connected with the static contact connector 6 under the push of the elliptical disk 301, thereby reducing the direct friction between the moving contact 5 and the static contact connector 6 and increasing the service life of the moving contact 5 and the static contact connector 6;
[0045] Specifically, the compensation spring 9 on the static contact connector 6 can provide connection compensation for the moving contact 5 and the static contact connector 6, that is, when the temperature rise of the switch is high, the material elasticity of the moving contact 5 and the static contact connector 6 will weaken, the contact pressure will decrease, and the contact breaking phenomenon will be easy to occur. The opening and closing component 3 drives the driven tooth 4 and the moving contact 5 thereon to move toward the static contact connector 6 to increase the pressure between the moving contact 5 and the static contact connector 6, while reducing the direct friction between the moving contact 5 and the static contact connector 6.
[0046] See also Figure 8-Figure 11 The base 1 also includes a pressing groove 104, and the opening and closing component 3 is located in the pressing groove 104 and rotates.
[0047] Specifically, the base 1 further includes a slide groove 105 , and the rotating shaft of the driven gear 4 is installed in the slide groove 105 .
[0048] Specifically, the opening and closing assembly 3 further includes a ratchet 305 , which is rotatably installed inside the base 1 and abuts against the active tooth 303 . A compression spring 307 is installed at the bottom of the rotating shaft of the elliptical disk 301 , and the compression spring 307 is connected to the compression groove 104 .
[0049] Specifically, a retaining ring 304 is provided on the edge of the elliptical disk 301 ; by pressing the elliptical disk 301 , the active teeth 303 thereon are driven to move downward synchronously, so that the ratchet teeth 305 are disengaged from the active teeth 303 , and the ratchet teeth 305 disengaged from the active teeth 303 abut against the retaining ring 304 .
[0050] Specifically, the ratchet 305 is connected to the base 1 via a connecting spring 306 .
[0051] It should be noted that the function of the retaining ring 304 is to prevent the ratchet 305 from being separated from the elliptical disk 301 , so as to ensure that the ratchet 305 can switch between the active tooth 303 and the retaining ring 304 without being separated from the elliptical disk 301 .
[0052] It should be noted that during the operation of closing the switch, the force storage spring 15 is stretched. As the moving contact 5 gets closer to the static contact connector 6, the force storage spring 15 is stretched more and the resistance of the opening and closing assembly 3 becomes greater, which can easily cause the switch to be unable to be closed in one go. At this time, the switch will automatically reset under the action of the force storage spring 15, and the switch needs to be closed again, which is time-consuming and laborious.
[0053] When the switch needs to be closed, the push ring 302 is pushed, so that the push ring 302 drives the elliptical disk 301 and the active tooth 303 on the elliptical disk 301 to rotate, and the active tooth 303 engages with the driven tooth 4, so that the active tooth 303 drives the driven tooth 4 to rotate, so that the moving contact 5 on the driven tooth 4 rotates toward the static contact contact piece 7. During the rotation of the elliptical disk 301, the active tooth 303 cooperates with the ratchet tooth 305. When the switch cannot be closed by rotating the elliptical disk 301 at one time, the ratchet tooth 305 will limit the elliptical disk 301, so that the force storage spring 15 is in a stretched state, which is convenient for pushing the push ring 302 a second time to close the switch;
[0054] Specifically, due to the elliptical structure of the elliptical disk 301 itself, when the active tooth 303 on the rotating elliptical disk 301 cooperates with the ratchet tooth 305, the active tooth 303 will compress the rebound stroke of the ratchet tooth 305, causing the rebound stroke of the ratchet tooth 305 to become smaller and smaller. When the moving contact 5 and the stationary contact connector 6 are connected, see Fig. 9 , the active tooth 303 pushes the ratchet tooth 305 against the rounded corner of the edge, and at this time the ratchet tooth 305 is stuck on the active tooth 303, realizing automatic position limiting of the elliptical disk 301;
[0055] When the switch needs to be disconnected, the elliptical disk 301 is pressed so that the elliptical disk 301 compresses the compression spring 307, and the elliptical disk 301 moves downward as a whole, so that the ratchet tooth 305 disengages from the active tooth 303, and at the same time, the ratchet tooth 305 disengaged from the active tooth 303 enters the retaining ring 304, and the elliptical disk 301 is rotated by the push ring 302 to drive the moving contact 5 on the driven tooth 4 to disengage from the static contact connector 6, and at the same time, the force storage spring 15 rebounds to accelerate the reset of the opening and closing component 3 and the driven tooth 4.
[0056] It should be noted that an ejection assembly is installed at the bottom of the ratchet 305. When the circuit breaker is damaged or the switch is short-circuited, the ejection assembly runs and drives the ratchet 305 to disengage from the active tooth 303, so that the moving contact 5 is disconnected from the static contact connector 6 under the rebound of the storage spring 15.
[0057] When installing the opening and closing assembly 3 , the initial pressing degree of the compression spring 307 can be controlled by screwing the screw.
[0058] See also Figure 1-Figure 2 A cover plate 2 is installed on the working chamber 101 , the contact slot 103 and the installation slot 102 .
[0059] It should be noted that the cover plate 2 is used to protect the components inside the base 1 .
[0060] The implementation principle of the present invention is as follows: when the switch needs to be closed, the push ring 302 is toggled, and the push ring 302 drives the elliptical disk 301 and the active tooth 303 on the elliptical disk 301 to rotate, and the active tooth 303 engages with the driven tooth 4, and the active tooth 303 drives the driven tooth 4 to rotate, so that the moving contact 5 on the driven tooth 4 rotates toward the static contact contact piece 7. At the same time, due to the elliptical structure of the elliptical disk 301 itself, the active tooth 303 drives the driven tooth 4 to rotate and also drives the driven tooth 4 to push toward the static contact contact piece 7, so that the rotating shaft of the driven tooth 4 slides along the slide groove 105, and the storage spring 15 is stretched at the same time;
[0061] Specifically, when the moving contact 5 on the driven tooth 4 approaches the static contact connector 6, the moving contact 5 is not in contact with the static contact connector 6 at first. As the elliptical disk 301 drives the driven tooth 4 toward the static contact connector 6, the moving contact 5 on the driven tooth 4 contacts with the static contact connector 6 under the action of the elliptical disk 301, and then the moving contact 5 drives the static contact connector 6 to press the compensation spring 9. When the static contact connector 6 contacts the static contact contact piece 7, the closing switch operation is completed.
[0062] During the process of closing the switch, if the switch cannot be closed by rotating the elliptical disk 301 at one time, the ratchet 305 will limit the elliptical disk 301, so that the force storage spring 15 is in a stretched state, which is convenient for pushing the push ring 302 for a second time to close the switch;
[0063] Specifically, due to the elliptical structure of the elliptical disk 301 itself, when the active tooth 303 on the rotating elliptical disk 301 cooperates with the ratchet tooth 305, the active tooth 303 will compress the rebound stroke of the ratchet tooth 305, causing the rebound stroke of the ratchet tooth 305 to become smaller and smaller. When the moving contact 5 and the stationary contact connector 6 are connected, see Fig. 9 , the active tooth 303 pushes the ratchet tooth 305 against the rounded corner of the edge, and at this time the ratchet tooth 305 is stuck on the active tooth 303, so that the elliptical disk 301 is automatically limited;
[0064] When the switch needs to be disconnected, the elliptical disk 301 is pressed so that the elliptical disk 301 compresses the compression spring 307, and the elliptical disk 301 moves downward as a whole, so that the ratchet tooth 305 disengages from the active tooth 303, and at the same time, the ratchet tooth 305 disengaged from the active tooth 303 enters the retaining ring 304, and the elliptical disk 301 is rotated by the push ring 302 to drive the moving contact 5 on the driven tooth 4 to disengage from the static contact connector 6, and at the same time, the force storage spring 15 rebounds to accelerate the reset of the opening and closing component 3 and the driven tooth 4.
[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.
Claims
1. A rotary switch assembly, characterized in that: The invention comprises a base (1) and a switch assembly (3) rotatably mounted thereon, wherein the base (1) comprises a working chamber (101) and a contact slot (103), wherein a driven tooth (4) is slidably mounted inside the working chamber (101), a moving contact (5) is mounted on the central axis of the driven tooth (4), a stationary contact contact piece (7) and a stationary contact connecting piece (6) are mounted inside the contact slot (103), and the stationary contact connecting piece (6) is connected to the side wall of the contact slot (103) via a compensation spring (9); The opening and closing assembly (3) comprises an elliptical disk (301) and a push ring (302) and a driving tooth (303) mounted thereon. The driving tooth (303) is arranged along the edge of the elliptical disk (301), and the driving tooth (303) meshes with the driven tooth (4). A sleeve block (13) is sleeved on the rotating shaft at the bottom of the driven tooth (4). An eccentric block (14) is rotatably mounted at the bottom of the elliptical disk (301), and the sleeve block (13) and the eccentric block (14) are connected via a force storage spring (15).
2. A rotary switch assembly according to claim 1, characterized in that: The base (1) also includes a contact slot (103), a wiring terminal (8) is installed inside the contact slot (103), one end of the wiring terminal (8) is connected to the static contact piece (7), and the other end of the wiring terminal (8) is connected to the wiring, and the wiring passes through the reserved hole on the wire control board (12).
3. A rotary switch assembly according to claim 2, characterized in that: The base (1) further comprises a mounting groove (102), a slot (11) is mounted inside the mounting groove (102), and the static contact piece (7) is inserted into the slot (11).
4. A rotary switch assembly according to claim 1, characterized in that: The base (1) also includes a pressing groove (104), and the opening and closing component (3) is located in the pressing groove (104) and rotates.
5. A rotary switch assembly according to claim 1, characterized in that: The base (1) further comprises a slide groove (105), and the rotating shaft of the driven gear (4) is installed in the slide groove (105).
6. A rotary switch assembly according to claim 1, characterized in that: The opening and closing assembly (3) further comprises a ratchet (305), which is rotatably mounted inside the base (1), the ratchet (305) abutting against the active tooth (303), and a compression spring (307) is mounted at the bottom of the rotating shaft of the elliptical disk (301), the compression spring (307) being connected to the compression groove (104).
7. A rotary switch assembly according to claim 6, characterized in that: A retaining ring (304) is provided on the edge of the elliptical disk (301); the active teeth (303) on the elliptical disk (301) are driven to move downward synchronously by pressing the elliptical disk (301), so that the ratchet teeth (305) are separated from the active teeth (303), and the ratchet teeth (305) separated from the active teeth (303) abut against the retaining ring (304).
8. A rotary switch assembly according to claim 7, characterized in that: The ratchet (305) is connected to the base (1) via a connecting spring (306).
9. The rotary switch assembly according to claim 1, characterized in that: A cover plate (2) is installed on the working chamber (101), the contact slot (103) and the installation slot (102).