Two-way switching microswitch

Abstract

The invention discloses a two-way switching microswitch which comprises a base, a button, a spring, a reed, a normally-closed terminal, a floating pressing block, a normally-open terminal, a contact bridge elastic piece, a low-voltage end support, a high-voltage end elastic piece support, a cover plate and a partition bridge. The base is a shell with an opening in the upper end and an inner cavity in the middle; the partition bridge is arranged in an inner cavity of the base and divides the inner cavity into two parts, namely an upper low-pressure passage fitting mounting area and a lower high-pressure passage fitting mounting area; the upper end of the base is provided with a sliding groove used for installing the button, and the button is arranged in the sliding groove and movably connected with the sliding groove. The partition bridge is provided with a sliding cavity used for installing the floating pressing block, and the floating pressing block is arranged in the sliding cavity. The bottom of the floating pressing block is attached to the top face of the right end of the contact bridge elastic piece. And the floating pressing block is made of an insulating material. The double-circuit switching microswitch is simple and reasonable in design, stable and reliable in operation and capable of rapidly and efficiently switching conduction of a high-voltage circuit and a low-voltage circuit.

Description

Technical Field

[0001] The present invention relates to the technical field of microswitches, and particularly to a dual - path switching microswitch. Background Art

[0002] Currently, the structure of mosquito - killing rackets on the market generally includes a mosquito - killing net, a handle, a boost circuit, and a power source. The power source provides sufficient voltage for the mosquito - killing net through the boost circuit. A control switch is connected in series between the power source and the boost circuit. It is characterized in that a manually - controlled power - off protection device for the net surface is connected in series between the boost circuit and the mosquito - killing net. People can manually cut off the power - off protection device for the net surface, so that the mosquito - killing net is instantly and completely disconnected from the external circuit (boost circuit), ensuring that there is no remaining electricity in the mosquito - killing net after disconnection, significantly improving the safety of using the electric mosquito - killing racket, and not consuming the power of the product. Moreover, since the cutting operation is manually performed by people, people can more intuitively feel the safety of the mosquito - killing net, eliminate the worry about the safety of the electric mosquito - killing racket, further facilitate the promotion of the product, and can also extend the service life of the product.

[0003] However, the existing electric mosquito - killing rackets still have the following deficiencies: (1) For the above - mentioned electric mosquito - killing racket, its control switch is a slider - type push - pull switch. After the user finishes using it, it is easy to forget to switch back to disconnect the power supply (disconnect the boost circuit); (2) The service life of the control switch is short, and the operation is stuck, not smooth, and the failure rate is high.

[0004] Therefore, this application designs a dual - path switching microswitch, which can be used on mosquito - killing rackets. Its operation is smooth and convenient, and it can quickly and efficiently switch the conduction of the high - voltage circuit and the low - voltage circuit. Summary of the Invention

[0005] The purpose of the present invention is to provide a dual - path switching microswitch, which is simply and reasonably designed, operates stably and reliably, and can quickly and efficiently switch the conduction of the high - voltage circuit and the low - voltage circuit.

[0006] To solve the above - mentioned technical problems, the technical solution of the present invention is as follows:

[0007] A dual - path switching microswitch includes a base, a button, a spring, a reed, a normally - closed terminal, a floating pressure block, a normally - open terminal, a touch - bridge elastic piece, a low - voltage terminal bracket, a high - voltage terminal elastic piece bracket, a cover plate, and a partition bridge.

[0008] The base is a shell with an open upper end and an inner cavity in the middle, and has clamping claws at its left and right ends.

[0009] The cover plate has clamping grooves at its left and right ends, and the clamping grooves are adapted to the clamping claws. The cover plate is covered on the upper end of the base and is snap - connected to the base, and the clamping grooves are connected to the clamping claws.

[0010] The partition bridge is arranged in the inner cavity of the base, dividing the inner cavity into two parts, namely the low-voltage passage fitting installation area in the upper part and the high-voltage passage fitting installation area in the lower part;

[0011] A chute for button installation is provided at the upper end of the base, and the button is arranged within the chute and is movably connected to the chute;

[0012] The inner side of the low-voltage terminal bracket, the spring, the reed, and the inner side of the normally-closed terminal are arranged in the low-voltage passage fitting installation area;

[0013] The high-voltage terminal spring bracket, the normally-open terminal, and the contact bridge spring are arranged in the high-voltage passage fitting installation area.

[0014] The low-voltage terminal bracket includes a bracket main body, a wiring pin, a spring hanging plate, a reed hinge plate, and a spring relief cavity. The bottom end of the bracket main body is provided with a wiring pin, and its upper end is provided with a spring hanging plate and a reed hinge plate at intervals. The spring hanging plate is provided with a hook hole and a relief hole. The left end of the reed is hinged to the reed hinge plate. The middle section of the reed is provided with a hook hole. The left and right ends of the spring are respectively connected to the hook holes on the spring hanging plate and the reed. A spring relief cavity is also provided on the bracket main body to provide a downward movement space for the spring when the spring is pressed down and moves downward, without blocking the spring. The spring relief cavity is directly below the spring. The pressing rod is directly above the spring, and its bottom is in contact with the spring. Preferably, to prevent the spring and the pressing rod from getting stuck and having movement interference, the bottom of the pressing rod is a V-shaped inclined plane.

[0015] The low-voltage terminal bracket, the reed, and the normally-closed terminal are made of metal conductive materials.

[0016] To fix the position of the low-voltage terminal bracket and limit its degree of freedom, a bracket slot is provided on the base. The bracket slot includes a longitudinal slot and a transverse slot. The longitudinal slot and the transverse slot limit the left-right and up-down displacements of the low-voltage terminal bracket. Cooperating with the rear wall and the cover plate of the base, the six-degree-of-freedom of the low-voltage terminal bracket is restricted, thereby achieving the position stability of the low-voltage terminal bracket, and further preventing the reed connected to it from shifting and running off track during use.

[0017] To strengthen the stability of the right end of the low-voltage terminal bracket and prevent shaking, the top of the reed hinge plate is in contact with the top of the base. A spring relief hole is also provided in the middle of the reed hinge plate.

[0018] Preferably, to better achieve circuit connection, one side end of the reed, the normally-closed terminal, the normally-open terminal, and the contact bridge spring are all provided with metal contacts. The metal contacts can be riveted rivets.

[0019] The high-voltage terminal spring bracket, the normally-open terminal, and the contact bridge spring are arranged in the high-voltage passage fitting installation area.

[0020] The high-voltage terminal spring bracket includes a wiring pin and a spring hanging post; an installation hole is provided at the lower end of the contact bridge spring, and the installation hole is sleeved on the spring hanging post; the lower end of the contact bridge spring is vertically arranged, and its upper end is inclined upward. The left end of the normally open terminal is arranged below the right end of the contact bridge spring. A sliding cavity for installing a floating pressure block is provided on the partition bridge, and the floating pressure block is arranged in the sliding cavity and is slidably connected to the sliding cavity; the bottom of the floating pressure block fits the top surface of the right end of the contact bridge spring. The floating pressure block is made of an insulating material.

[0021] To fix the positions of the normally closed terminal, the normally open terminal, and the high-voltage terminal spring bracket and limit their degrees of freedom, the normally closed terminal, the normally open terminal, and the high-voltage terminal spring bracket are also provided with limit bumps, and corresponding bump insertion cavities are provided at the position of the cover plate. When the cover plate covers the base, the limit bumps are inserted into the bump insertion cavities.

[0022] Briefly describe its working principle:

[0023] The contact bridge spring has a certain elastic deformation performance. In the natural state, the top surface of its right end fits the bottom of the floating pressure block, and there is a gap between the bottom surface of its right end and the normally open terminal. When the button is pressed down, the pressure rod pushes the spring, the right end of the spring is pressed down, causing the hinged reed to swing downward, the right end of the reed touches and presses down the floating pressure block, the floating pressure block presses down the contact bridge spring, making the contact bridge spring fit the normally open terminal, forming the connection of the "wire". When the button is released, the spring resets, the reed is subjected to a leftward pulling force, it swings upward, no longer applies pressure to the floating pressure block, and the contact bridge spring returns to its original shape and moves upward to disconnect the connection with the normally open terminal.

[0024] The beneficial effects of the present invention:

[0025] Its design is simple and reasonable, the operation is stable and reliable, and it can quickly and efficiently switch the conduction of high-voltage circuits and low-voltage circuits;

[0026] The structural design, installation, and limiting methods of the normally closed terminal, the normally open terminal, the high-voltage terminal spring bracket, and the low-voltage terminal bracket make their installation positions stable and reliable. Brief Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of a dual-path switching microswitch of the present invention;

[0028] Figure 2 It is a front view of a dual-path switching microswitch of the present invention (after omitting the cover plate);

[0029] Figure 3 It is a second front view of a dual-path switching microswitch of the present invention;

[0030] Figure 4 It is a schematic structural diagram of a dual-path switching microswitch of the present invention (after omitting the cover plate);

[0031] Figure 5 Structural schematic diagram (another perspective) of a dual - path switching micro - switch according to the present invention;

[0032] Figure 6 Structural schematic diagram of the cover plate of the present invention;

[0033] Figure 7 Circuit schematic diagram of the present invention. Specific embodiments

[0034] The following further describes the specific embodiments of the present invention with reference to the accompanying drawings. It should be noted here that the description of these embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] As Figures 1 - 7 shown, a dual - path switching micro - switch includes a base 1, a button 2, a spring 3, a reed 4, a normally - closed terminal 5, a floating pressure block 6, a normally - open terminal 7, a contact bridge spring piece 8, a low - voltage terminal bracket 9, a high - voltage terminal spring piece bracket 10, a cover plate 11, and a partition bridge 12;

[0036] The base 1 is a housing with an open upper end and an inner cavity in the middle, and has claws 13 at its left and right ends;

[0037] The cover plate 11 has slots 14 at its left and right ends, and the slots 14 are adapted to the claws 13; the cover plate 11 is covered on the upper end of the base 1 and is snap - connected to the base 1, and the slots 14 are connected to the claws 13;

[0038] The partition bridge 12 is arranged in the inner cavity of the base 1, dividing the inner cavity into two parts, namely an upper low - voltage path fitting installation area 15 and a lower high - voltage path fitting installation area 16;

[0039] The upper end of the base 1 is provided with a chute 17 for installing the button 2, the button 2 is arranged in the chute 17 and is movably connected to the chute 17; a pressure rod 21 is provided at the bottom of the button 2.

[0040] The inner side of the low - voltage terminal bracket 9, the spring 3, the reed 4, and the inner side of the normally - closed terminal 5 are arranged in the low - voltage path fitting installation area 15;

[0041] The high - voltage terminal spring piece bracket 10, the normally - open terminal 7, and the contact bridge spring piece 8 are arranged in the high - voltage path fitting installation area 16.

[0042] The low-voltage terminal bracket 9 includes a bracket body 91, a wiring pin 92, a spring hanging plate 93, a reed hinge plate 95, and a spring relief cavity 96. The bottom end of the bracket body 91 is provided with a wiring pin 92, and the upper end thereof is provided with a spring hanging plate 93 and a reed hinge plate 95 at intervals. The spring hanging plate 93 is provided with a hook hole 931 and a relief hole. The left end of the reed 4 is hingedly connected to the reed hinge plate 95. The middle section of the reed 4 is provided with a hook hole 931. The left and right ends of the spring 3 are respectively connected to the hook holes 931 on the spring hanging plate 93 and the reed 4. The bracket body 91 is further provided with a spring relief cavity 96 for providing a downward movement space for the spring 3 when the spring 3 is pressed down and moved downward, without blocking the spring 3. The spring relief cavity 96 is directly below the spring 3. The pressure rod 21 is directly above the spring 3, and the bottom thereof is in contact with the spring 3.

[0043] Preferably, in order to prevent the spring 3 and the pressure rod 21 from getting stuck and having moving interference, the bottom of the pressure rod 21 is a V-shaped inclined surface.

[0044] The low-voltage terminal bracket 9, the reed 4, and the normally-closed terminal 5 are made of metal conductive materials.

[0045] To fix the position of the low-voltage terminal bracket 9 and limit its degree of freedom, the bracket body 91 is arranged in an L shape; the base 1 is provided with a bracket slot, and the bracket slot includes a longitudinal slot 18 and a transverse slot 19. The longitudinal slot 18 and the transverse slot 19 limit the left-right, up-down displacement of the low-voltage terminal bracket 9. Cooperating with the rear wall of the base 1 and the cover plate 11, the six-degree-of-freedom of the low-voltage terminal bracket 9 are all limited, so as to achieve the position stability of the low-voltage terminal bracket 9, and further prevent the reed 4 connected thereto from shifting and running off during use.

[0046] To strengthen the stability of the right end of the low-voltage terminal bracket 9 and prevent shaking, the top of the reed hinge plate 95 abuts against the base 1. The middle part of the reed hinge plate 95 is further provided with a spring relief hole for the spring 3 to pass through.

[0047] Preferably, in order to better achieve circuit connection, one side end of the reed 4, the normally-closed terminal 5, the normally-open terminal 7, and the contact bridge spring piece 8 are all provided with metal contacts 80. The metal contacts 80 can be riveted rivets.

[0048] The high-voltage terminal spring piece bracket 10, the normally-open terminal 7, and the contact bridge spring piece 8 are arranged in the high-voltage path fitting installation area 16.

[0049] The high-voltage terminal elastic piece bracket 10 includes a wiring pin and an elastic piece hanging post 81; an installation hole 82 is provided at the lower end of the contact bridge elastic piece 8, and the installation hole 82 is sleeved on the elastic piece hanging post 81; the lower end of the contact bridge elastic piece 8 is vertically arranged, and its upper end is inclined upward. The left end of the normally open terminal 7 is arranged below the right end of the contact bridge elastic piece 8. A sliding cavity 121 for installing the floating pressing block 6 is provided on the partition bridge 12, and the floating pressing block 6 is arranged inside the sliding cavity 121 and is slidably connected to the sliding cavity 121; the bottom of the floating pressing block 6 is attached to the top surface of the right end of the contact bridge elastic piece 8. The floating pressing block 6 is made of insulating material.

[0050] To fix the positions of the normally closed terminal 5, the normally open terminal 7, and the high-voltage terminal elastic piece bracket 10 and limit their degrees of freedom, the normally closed terminal 5, the normally open terminal 7, and the high-voltage terminal elastic piece bracket 10 are also provided with limiting protrusions 30, and corresponding protrusion insertion cavities 40 are provided at the position of the cover plate 11. When the cover plate 11 covers the base 1, the limiting protrusions 30 are inserted into the protrusion insertion cavities 40.

[0051] For example, as shown in the figure, 1 and 2 are high-voltage lines, and a high voltage of DC4000V is connected. When the circuit is disconnected, the open distance between 1 and 2 needs to be greater than the gap of 3mm, so that the high-voltage line can be disconnected and not be punctured.

[0052] 3 and 4 are low-voltage lines, and the creepage distance between the lines of 3 and 4 and the lines of 1 and 2 needs to be greater than 3mm. When 1 and 2 are disconnected, 3 and 4 need to be connected, and the delay time between the two is ≤0.5S;

[0053] Dielectric strength: No flashover breakdown at 4000VAC / 1min / 5mA / 50 or 60HZ between the disconnected terminals of 1 and 2 and between the 1 / 2 terminals and the 3 / 4 disconnected terminals.

[0054] Briefly describe its working principle:

[0056] The contact bridge elastic piece 8 has certain elastic deformation performance. In the natural state, the top surface of its right end is attached to the bottom of the floating pressing block 6, and there is a gap between the bottom surface of its right end and the normally open terminal 7. When the button 2 is pressed down, the pressing rod 21 pushes the spring 3, and the right end of the spring 3 is pressed down, causing the hinged reed 4 to swing downward. The right end of the reed 4 touches and presses the floating pressing block 6, and the floating pressing block 6 presses the contact bridge elastic piece 8, making the contact bridge elastic piece 8 fit with the normally open terminal 7 to form the connection of the "wire". When the button 2 is released, the spring 3 resets, the reed 4 is subjected to a leftward pulling force, it swings upward, and no longer applies pressure to the floating pressing block 6, while the contact bridge elastic piece 8 returns to its original shape and moves upward to disconnect the connection with the normally open terminal 7.

[0057] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A dual-channel switching microswitch, characterized in that: It includes a base, a button, a spring, a reed, a normally closed terminal, a floating pressure block, a normally open terminal, a contact bridge spring piece, a low-voltage terminal bracket, a high-voltage terminal spring piece bracket, a cover plate, and a partition bridge. The base is a housing with an open upper end and an inner cavity in the middle. The partition bridge is arranged in the inner cavity of the base, dividing the inner cavity into two parts, namely the low-voltage passage fitting installation area in the upper part and the high-voltage passage fitting installation area in the lower part. A chute for button installation is provided at the upper end of the base. The button is arranged within the chute and is movably connected to the chute. A pressure rod is provided at the bottom of the button. The low-voltage terminal bracket, spring, reed, and normally closed terminal are arranged in the low-voltage passage fitting installation area. The high-voltage terminal spring piece bracket, normally open terminal, and contact bridge spring piece are arranged in the high-voltage passage fitting installation area. A sliding cavity for floating pressure block installation is provided on the partition bridge. The floating pressure block is arranged within the sliding cavity and is slidably connected to the sliding cavity. The bottom of the floating pressure block is in contact with the top surface of the right end of the contact bridge spring piece. The floating pressure block is made of insulating material.

2. The double-path switching microswitch according to claim 1, characterized in that: The low-voltage terminal bracket includes a bracket main body, a wiring pin, a spring hanging plate, a reed hinge plate, and a spring relief cavity. A wiring pin is provided at the bottom end of the bracket main body, and a spring hanging plate and a reed hinge plate are provided at intervals at its upper end. A hook hole and a relief hole are provided on the spring hanging plate. The left end of the reed is hinged to the reed hinge plate. A hook hole is provided in the middle section of the reed. The left and right ends of the spring are respectively connected to the hook holes on the spring hanging plate and the reed. A spring relief cavity is also provided on the bracket main body; the spring relief cavity is directly below the spring. The pressure rod is directly above the spring, and its bottom is in contact with the spring.

3. The double-path switching microswitch according to claim 2, wherein: Claws are provided at the left and right ends of the base; clamping grooves are provided at the left and right ends of the cover plate, and the clamping grooves are adapted to the claws. The cover plate is covered on the upper end of the base and is snap-connected to the base, and the clamping grooves are connected to the claws.

4. The double-way switching microswitch according to claim 3, wherein: The bottom of the pressure rod is a V-shaped inclined surface.

5. The double-path switching microswitch according to claim 4, wherein: The bracket main body is arranged in an L shape; a bracket clamping groove is provided on the base, and the bracket clamping groove includes a longitudinal clamping groove and a transverse clamping groove.

6. The double-way switching micro switch according to claim 5, wherein: The low-voltage terminal bracket, reed, and normally closed terminal are made of metal conductive material.

7. The double-path switching microswitch according to claim 6, characterized in that: The top of the reed hinge plate is in contact with the top of the base; a spring relief hole is also provided in the middle of the reed hinge plate.

8. The double-way switching microswitch according to claim 7, characterized in that: Metal contacts are provided at one end of each of the reed, normally closed terminal, normally open terminal, and contact bridge spring piece; the metal contacts are riveted rivets.

9. The double-path switching microswitch according to any one of claims 1-8, characterized in that: The high-voltage terminal spring piece bracket includes a wiring pin and a spring piece hanging post. An installation hole is provided at the lower end of the contact bridge spring piece, and the installation hole is sleeved on the spring piece hanging post. The lower end of the contact bridge spring piece is vertically arranged, and its upper end is inclined upward. The left end of the normally open terminal is arranged below the right end of the contact bridge spring piece.

10. The double-path switching microswitch according to claim 9, wherein: The normally closed terminal, normally open terminal, and high-voltage terminal spring piece bracket are also provided with limiting convex blocks, and convex block insertion cavities are provided at the corresponding positions of the cover plate. When the cover plate covers the base, the limiting convex blocks are inserted into the convex block insertion cavities.

Images