Novel low-resistance mechanical rocker switch structure

Abstract

The application belongs to the technical field of switch devices, and particularly relates to a novel low-resistance mechanical rocker switch structure, which comprises a bottom cover and a shell fixed on the top of the bottom cover. The inner side of the shell is rotationally connected with a rocker button. The bottom of the rocker button is provided with a switching transmission assembly. The inner side of the shell is provided with two contacts. The inner side of the shell is provided with a rocker conductive mechanism connected with the two contacts. The novel low-resistance mechanical rocker switch structure further comprises a separation pad block arranged on the inner side of the shell and located on one side of the contact surface of the two contacts. The novel low-resistance mechanical rocker switch structure can reduce the contact between water vapor, oil smoke particles and the contact surface, has a certain scraping effect on the corrosion film on the surface layer of the contact, avoids the resistance increase caused by the oxidation of the contact as much as possible, reduces the impact degree of the contact in the closing moment, reduces the possibility of deformation of the contact caused by the impact, and improves the stability of the rocker button in the working process.

Description

Technical Field

[0001] This invention belongs to the field of switching device technology, and in particular relates to a novel low-resistance mechanical rocker switch structure. Background Technology

[0002] A rocker switch mainly consists of an operating rocker, a moving contact, a stationary contact, and a return spring. It relies on the swing of the rocker to open and close the contacts. Because of its high operability and stable feel, it is often used as a power control component in commercial steam ovens.

[0003] Commercial steam ovens generate a significant amount of water vapor and volatile oil fumes during operation. During the cooling phase after shutdown, temperature differences between the inside and outside of the equipment can cause small amounts of water vapor and oil fume particles to seep into the switch cavity through the tiny gaps in the switch housing. When the switch remains open for an extended period, the internal silver contacts continue to come into contact with the infiltrated humid gas and oil fume particles, causing a slow-growing corrosive film to form on the contact surface. This leads to a certain increase in the contact resistance of the contacts. When the switch is closed again to conduct, momentary unstable conduction and increased localized heating can easily occur, affecting the reliability of the power circuit of the commercial equipment. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a novel low-resistance mechanical rocker switch structure that can minimize the increase in contact resistance at the contact points.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel low-resistance mechanical rocker switch structure, comprising a bottom cover and a housing fixed to the top of the bottom cover, a rocker button rotatably connected to the inner side of the housing, a switching transmission assembly installed at the bottom of the rocker button, two contacts provided on the inner side of the housing, and a rocker conductive mechanism connected to the two contacts on the inner side of the housing, further comprising:

[0006] A separation pad is disposed on the inner side of the housing and on one side of the contact surface of the two contacts. The side wall of the separation pad is provided with an inclined bevel, and the top of the separation pad is inclined. After the two contacts are separated, the top and bottom of the separation pad abut against the corresponding contact surface of the contact.

[0007] A squeeze drive unit is located inside the housing, and the rocker button is driven by the squeeze drive unit to move the separation pad between the two contacts.

[0008] In the above-mentioned novel low-resistance mechanical rocker switch structure, the switching transmission assembly includes a cylinder fixed to the bottom of the rocker button, a transmission rod slidably inserted into the end of the cylinder, and a switching spring fixed between one end of the transmission rod and the bottom of the rocker button, and a switching push plate fixed to the bottom of the transmission rod.

[0009] In the aforementioned novel low-resistance mechanical rocker switch structure, the rocker conductive mechanism includes an L-shaped pin and a flat pin disposed inside the housing. The bottom of both the L-shaped pin and the flat pin penetrates the surface of the bottom cover. A rocker conductive plate is disposed above the flat pin, and the lower surface of the rocker conductive plate is in rotatable contact with the top of the flat pin. Two contacts are respectively fixed on the lower surface of the rocker conductive plate and the upper surface of the horizontal part of the L-shaped pin. A support assembly is installed on the rocker conductive plate.

[0010] In the above-mentioned novel low-resistance mechanical rocker switch structure, the support assembly includes an insulating sleeve fixedly sleeved on the outside of the rocker conductive plate. The insulating sleeve is offset from the flat pin. Two support pins are fixed to the side wall of the insulating sleeve, and the support pins are rotatably connected to the side wall of the outer shell. The rotational contact positions of the support pins, the rocker conductive plate, and the flat pin are coaxial.

[0011] In the above-mentioned novel low-resistance mechanical rocker switch structure, the outer side wall of the housing is provided with a mounting groove that matches the support pin. A heat-conducting component is fixed inside the mounting groove. The side wall of the heat-conducting component is in rotatable contact with the support pin. Both the insulating sleeve and the support pin are made of heat-conducting material.

[0012] In the aforementioned novel low-resistance mechanical rocker switch structure, the extrusion drive unit includes a movable block disposed inside the housing, a separation pad fixed to the side wall of the movable block, a hemispherical protrusion fixed to the corner of the side wall of the movable block away from the separation pad, an arc-shaped extrusion strip corresponding to the position of the hemispherical protrusion fixed to the bottom of the rocker button, an extrusion ramp opened on the side wall of the arc-shaped extrusion strip near the hemispherical protrusion, and a reset component connected to the movable block installed on the side wall of the housing. During the closing of the two contacts, the reset component pushes the separation pad to reset.

[0013] In the aforementioned novel low-resistance mechanical rocker switch structure, the reset assembly includes a cylindrical tube fixed to the inner wall of the housing, a push rod slidably inserted into the end of the cylindrical tube, the end of the push rod being fixedly connected to the side wall of the movable block, and a reset spring being fixed between the push rod and the inner wall of the housing.

[0014] In the above-mentioned novel low-resistance mechanical rocker switch structure, a frame-shaped pressure plate is embedded at the bottom of the housing, and a frame-shaped sealing sleeve is pressed against the bottom of the frame-shaped pressure plate, and the inner sidewall of the frame-shaped sealing sleeve is in contact with the sidewall of the rocker button.

[0015] Compared with existing technologies, the present invention has the following advantages:

[0016] 1. This invention utilizes a separation pad that moves between the contact surfaces after the two contacts separate. This pad covers the contacts, reducing contact between moisture, oil particles, and the contact surface, delaying the formation of a corrosion film, and inhibiting the rise in contact resistance from the source. Simultaneously, during the sliding in and out of the contact surface, the separation pad can scrape away the existing corrosion film, improving the conductivity of the contact surface and helping to maintain a low contact resistance. Furthermore, as the contacts are about to close, the separation pad buffers the movement of the contacts, appropriately reducing the downward speed of the contacts, weakening the impact at the moment of closure, reducing the possibility of deformation due to impact, and preventing uneven contact surfaces that could increase contact resistance. This ensures that the switch maintains a relatively stable low-resistance conductivity even after long-term operation.

[0017] 2. The present invention, through the extrusion drive unit, can synchronously drive the separation pad to move into and out of the contact area in sync with the swing of the rocker button, thereby realizing the synchronous coordination between the action of the separation pad and the switch. Furthermore, during the process of the reset component continuously applying horizontal elastic force to the moving block, the hemispherical protrusion and the arc-shaped extrusion strip can form a mutual abutting force, which can limit the unexpected shaking of the rocker button to a certain extent and improve the stability of the rocker button during operation.

[0018] 3. The present invention, through the setting of heat-conducting components, insulating sleeves and supporting pins, allows a portion of the heat generated when the rocker conductive sheet is working to be transferred sequentially through the insulating sleeve and supporting pins to the heat-conducting components, and then dissipated from the heat-conducting components to the side of the outer shell. This can appropriately accelerate the rate of heat conduction from the inside of the switch to the outside, improve the internal heat dissipation conditions when the contacts are in operation, and help to reduce damage such as oxidation of internal components of the switch due to long-term temperature rise. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a novel low-resistance mechanical rocker switch structure provided by the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the bottom cover provided by the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the outer shell provided by the present invention;

[0022] Figure 4 This is a schematic diagram of the rocker button provided by the present invention;

[0023] Figure 5 This is a schematic cross-sectional view of the connection structure of the bottom cover, outer shell, and rocker button provided by the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the switching transmission assembly provided by the present invention;

[0025] Figure 7 This is a schematic diagram of the sidewall structure of the arc-shaped extrusion strip provided by the present invention;

[0026] Figure 8 This is a schematic diagram of the connection structure between the arc-shaped extrusion strip and the hemispherical protrusion provided by the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the reset component provided by the present invention.

[0028] In the diagram: 1. Bottom cover; 2. Outer shell; 3. Rocker button; 4. Switching transmission assembly; 41. Cylinder; 42. Transmission rod; 43. Switching spring; 44. Switching push plate; 5. Contact point; 6. Rocker conductive mechanism; 61. L-shaped pin; 62. Flat pin; 63. Rocker conductive sheet; 7. Separation pad; 8. Inclined bevel; 9. Extrusion drive unit; 91. Movable block; 92. Hemispherical protrusion; 93. Arc-shaped extrusion strip; 94. Extrusion ramp; 10. Support assembly; 101. Insulating sleeve; 102. Support pin; 11. Mounting groove; 12. Heat-conducting component; 13. Reset assembly; 131. Cylindrical cylinder; 132. Push rod; 133. Reset spring; 14. Frame-shaped pressure plate; 15. Frame-shaped sealing sleeve. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] like Figures 1-5As shown, a novel low-resistance mechanical rocker switch structure includes a bottom cover 1 and a housing 2 fixed to the top of the bottom cover 1. A rocker button 3 is rotatably connected to the inner side of the housing 2. A limiting block is fixed to the inner wall of the housing 2 to limit the rocker button 3 and prevent it from being pressed too deeply. A switching transmission assembly 4 is installed at the bottom of the rocker button 3. Two contacts 5 are provided on the inner side of the housing 2, and a rocker conductive mechanism 6 connected to the two contacts 5 is also provided on the inner side of the housing 2. The device further includes a separation pad 7 and a pressing drive unit 9. The separation pad 7 is located on the inner side of the housing 2 and on one side of the contact surface of the two contacts 5. An inclined bevel 8 is formed on the side wall of the separation pad 7. The top of the separation pad 7... The part is tilted, and after the tilt angle is separated from the contact 5, the tilt angle of the upper contact 5 is the same. After the two contacts 5 are separated, the top and bottom of the separation pad 7 abut against the contact surface of the corresponding contact 5. The extrusion drive unit 9 is set inside the housing 2. The rocker button 3 drives the separation pad 7 to move between the two contacts 5 through the extrusion drive unit 9. The separation pad 7 is made of pure PEEK material, which has excellent insulation performance, high temperature resistance and chemical inertness. It can be adapted to the high temperature, humidity and oil fume corrosion working environment of commercial steam ovens. The material has moderate hardness and can scrape off the micro-corrosion oxide film on the surface of the contact 5 without damaging the metal substrate of the contact 5 as much as possible.

[0031] In actual operation, this embodiment uses the rocker button 3 to swing in conjunction with the squeezing drive unit 9 to drive the separation pad 7 to move horizontally in the contact 5 area. After the switch is turned off and the contacts 5 are separated, the separation pad 7 is smoothly inserted between the two sets of contacts 5. Since the top of the separation pad 7 is inclined, the top and bottom of the separation pad 7 can cover the contact surfaces of the two contacts 5 respectively, which to a certain extent isolates the water vapor and oil fume particles that seep in from the outside, slows down the corrosion and oxidation rate of the contacts 5, and avoids the contacts 5 from oxidizing and increasing resistance as much as possible. At the same time, the separation pad 7 can slightly rub the surface of the contacts 5 during the horizontal movement, scraping off the trace corrosion film generated on the surface of the contacts 5, improving the conduction conditions of the contacts 5, and helping to keep the contacts 5 in a low resistance state. In addition, the inclined structure of the separation pad 7 can play a moderate buffering role in the early stage of contact 5 closure, reducing the impact force of contact 5 closure, reducing the wear deformation of the contacts 5 caused by impact, and helping to improve the stability of the contacts 5 after long-term high-frequency use.

[0032] like Figure 4 and Figure 6 As shown, in this embodiment, the switching transmission assembly 4 includes a cylinder 41 fixed to the bottom of the rocker button 3. A transmission rod 42 is slidably inserted into the end of the cylinder 41, and a switching spring 43 is fixed between one end of the transmission rod 42 and the bottom of the rocker button 3. A switching push plate 44 is fixed to the bottom of the transmission rod 42, and the bottom of the switching push plate 44 is arc-shaped.

[0033] In actual operation, this embodiment uses the rocker button 3 to swing and drive the cylinder 41 to move synchronously, so that the transmission rod 42 slides and extends along the end of the cylinder 41. With the elastic extension and retraction characteristics of the switching spring 43, the switching action can be elastically buffered, reducing the jamming and impact during the switch operation. At the same time, the switching push plate 44 at the bottom of the transmission rod 42 stably presses and drives the rocker conductive mechanism 6 to complete the opening and closing of the contact 5, ensuring that the switching action is smooth and reliable.

[0034] like Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, the rocker conductive mechanism 6 includes an L-shaped pin 61 and a flat pin 62 disposed inside the housing 2. The bottoms of both the L-shaped pin 61 and the flat pin 62 penetrate the surface of the bottom cover 1. A rocker conductive plate 63 is disposed above the flat pin 62, and the lower surface of the rocker conductive plate 63 is in rotatable contact with the top of the flat pin 62. Two contacts 5 are respectively fixed on the lower surface of the rocker conductive plate 63 and the upper surface of the horizontal part of the L-shaped pin 61. A support assembly 10 is installed on the rocker conductive plate 63.

[0035] In actual operation, this embodiment uses the L-shaped pin 61 and the flat pin 62 to form the external conductive path of the switch. The rocker conductive plate 63 swings with the top of the flat pin 62 as the pivot point, which drives the two sets of contacts 5 to achieve contact and disconnection, and stably complete the circuit switching. With the support component 10 supporting the rocker conductive plate 63, the swing trajectory of the rocker conductive plate 63 can be effectively ensured to be stable, reducing the misalignment of the contacts 5 and ensuring the stability of the conductive contact.

[0036] like Figure 2 and Figure 8 As shown, further, in this embodiment, the support assembly 10 includes an insulating sleeve 101 fixedly sleeved on the outside of the rocker conductive sheet 63. The bottom of the insulating sleeve 101 has a through hole so as to be offset from the flat pin 62. Two support pins 102 are fixed on the side wall of the insulating sleeve 101, and the support pins 102 are rotatably connected to the side wall of the outer shell 2. The rotational contact positions of the support pins 102, the rocker conductive sheet 63 and the flat pin 62 are coaxial.

[0037] In actual operation, this embodiment uses an insulating sleeve 101 to insulate and isolate the rocker conductive plate 63, minimizing contact wear between the switching push plate 44 and the rocker conductive plate 63. At the same time, the rotational cooperation between the two side support pins 102 and the outer shell 2 provides a stable rotation fulcrum for the rocker conductive plate 63, limiting the offset and swaying amplitude of the rocker conductive plate 63, improving the opening and closing alignment accuracy of the contact 5, and ensuring the structural stability of the switch during long-term operation.

[0038] like Figure 1 and Figure 3 As shown, further, in this embodiment, the outer side wall of the outer shell 2 is provided with a mounting groove 11 that matches the support pin 102. A heat-conducting component 12 is fixed inside the mounting groove 11. The side wall of the heat-conducting component 12 is in rotatable contact with the support pin 102. Both the insulating sleeve 101 and the support pin 102 are made of heat-conducting material. Both the insulating sleeve 101 and the support pin 102 are made of high thermal conductivity modified insulating engineering plastic. The heat-conducting component 12 is made of aluminum and has multiple heat dissipation grooves on its surface.

[0039] In actual operation, this embodiment uses the insulating sleeve 101 and the support pin 102 to conduct the heat generated by the rocker conductive plate 63 during operation to the heat-conducting component 12 inside the mounting groove 11 in sequence through the insulating sleeve 101 and the support pin 102. Then, the heat-conducting component 12 dissipates the heat to the outside of the outer casing 2, effectively increasing the heat dissipation conduction path inside the switch, accelerating the internal heat dissipation speed, alleviating the heat accumulation problem when the switch is powered on for a long time, and reducing the impact of high temperature on the oxidation of internal components.

[0040] like Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, further, in this embodiment, the extrusion drive unit 9 includes a movable block 91 disposed inside the housing 2, a separation pad 7 fixed to the side wall of the movable block 91, a hemispherical protrusion 92 fixed to the corner of the side wall of the movable block 91 away from the separation pad 7, an arc-shaped extrusion strip 93 corresponding to the position of the hemispherical protrusion 92 fixed to the bottom of the rocker button 3, an extrusion ramp 94 opened on the side wall of the arc-shaped extrusion strip 93 near the hemispherical protrusion 92, and a reset assembly 13 connected to the movable block 91 installed on the side wall of the housing 2. During the closing of the two contacts 5, the reset assembly 13 pushes the separation pad 7 to reset.

[0041] In actual operation, this embodiment uses the rocker button 3 to swing and drive the arc-shaped extrusion bar 93 to move synchronously. The extrusion ramp 94 of the arc-shaped extrusion bar 93 presses against the hemispherical protrusion 92, pushing the movable block 91 to move horizontally, thereby driving the separation pad 7 on the side wall to move into the contact point 5 area, realizing the synchronous action of the separation pad 7 and the switch on / off action.

[0042] like Figure 8 and Figure 9 As shown, in this embodiment, the reset assembly 13 includes a cylindrical tube 131 fixed to the inner wall of the outer casing 2. A push rod 132 is slidably inserted into the end of the cylindrical tube 131. The end of the push rod 132 is fixedly connected to the side wall of the movable block 91. A reset spring 133 is fixed between the push rod 132 and the inner wall of the outer casing 2.

[0043] In actual operation, in this embodiment, when the movable block 91 moves, it drives the push rod 132 to slide along the inside of the cylindrical tube 131, causing the reset spring 133 to undergo elastic deformation and store elastic force. When the switch is closed and the contact 5 needs to be engaged and connected, the reset spring 133 releases its elastic force to push the push rod 132 and the movable block 91 to reset in the opposite direction, causing the separation pad 7 to smoothly exit the contact surface of the contact 5, avoiding the separation pad 7 from being stuck and affecting the engagement and conduction of the contact 5, ensuring that the circuit can conduct normally when the switch is closed. In addition, by using the reset spring 133 and the push rod 132 to continuously apply a pushing force to the movable block 91, a certain limiting support can be formed for the rocker button 3, reducing the slight shaking of the rocker button 3 during operation and improving the stability of the switch operation.

[0044] like Figure 3 and Figure 5 As shown, in this embodiment, a frame-shaped pressure plate 14 is embedded at the bottom of the outer shell 2, and a frame-shaped sealing sleeve 15 is pressed onto the bottom of the frame-shaped pressure plate 14, and the inner sidewall of the frame-shaped sealing sleeve 15 is in contact with the sidewall of the rocker button 3.

[0045] In actual operation, this embodiment uses a frame-shaped pressure plate 14 to press and fix the frame-shaped sealing sleeve 15, so that the frame-shaped sealing sleeve 15 fits tightly against the gap between the side wall of the rocker button 3 and the bottom of the outer shell 2, which can form a sealed protection for the internal cavity of the switch, reduce the seepage of external moisture, oil fume particles, dust and other media into the switch from the assembly gap, and help improve the service life of the switch.

[0046] The operation process of this invention is as follows: In the initial state of the switch, the contact 5 is in a closed and conductive state, the reset spring 133 of the reset component 13 is in a slightly compressed state, the separation pad 7 is in the initial position on one side of the contact 5, and the device can be powered on and operated normally. When it is necessary to disconnect the circuit, press the rocker button 3 to make it swing outward, and the arc-shaped extrusion strip 93 at the bottom of the rocker button 3 moves synchronously. Through the extrusion ramp 94, it continuously presses against the hemispherical protrusion 92, pushing the movable block 91 to overcome the elastic force of the reset spring 133 and move horizontally, driving the separation pad 7 to move between the two sets of contacts 5.

[0047] During the movement of the separating pad 7, a slight sliding friction occurs between the surface of the separating pad 7 and the contact surface of the contact 5, which can scrape off the small amount of corrosion film generated on the surface of the contact 5. As the rocker button 3 swings into place, the rocker conductive mechanism 6 moves synchronously, and the two sets of contacts 5 are completely separated. At this time, the separating pad 7 is fully inserted between the two sets of contacts 5. The top and bottom of the separating pad 7 are respectively attached to the contact surface of the corresponding contact 5, covering the contact 5 area, isolating the moisture and oil particles that seep into the switch, and preventing the contact 5 from continuing to corrode and oxidize when it is stationary.

[0048] When the circuit needs to be reconnected, press the rocker button 3 in the opposite direction to reset. The arc-shaped extrusion strip 93 releases the extrusion limit on the hemispherical protrusion 92. The reset spring 133 releases its elastic force to push the push rod 132 and the movable block 91 to slide in the opposite direction, causing the separation pad 7 to smoothly exit the gap of the contact 5. During the withdrawal process, the surface of the contact 5 is slightly cleaned and polished again to further remove the surface corrosion. After the separation pad 7 is completely removed from the working area of ​​the contact 5, the rocker conductive plate 63 swings to reset, the two sets of contacts 5 are pressed together, and the circuit is restored to the conductive state.

[0049] During the overall operation of the switch, the heat generated by the rocker conductive plate 63 can be conducted to the heat-conducting component 12 through the insulating sleeve 101 and the support pin 102 made of heat-conducting material to complete the heat dissipation, effectively slowing down the rate of increase in contact resistance of the contact 5, and adapting to the long-term use conditions of commercial steam ovens and other equipment.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel low-resistance mechanical rocker switch structure, comprising a bottom cover (1) and a housing (2) fixed to the top of the bottom cover (1), wherein a rocker button (3) is rotatably connected to the inner side of the housing (2), a switching transmission assembly (4) is installed at the bottom of the rocker button (3), two contacts (5) are provided on the inner side of the housing (2), and a rocker conductive mechanism (6) connected to the two contacts (5) is provided on the inner side of the housing (2), characterized in that, Also includes: A separation pad (7) is disposed on the inner side of the outer casing (2) and on one side of the contact surface of the two contacts (5). The side wall of the separation pad (7) is provided with an inclined bevel (8). The top of the separation pad (7) is inclined. After the two contacts (5) are separated, the top and bottom of the separation pad (7) abut against the contact surface of the corresponding contacts (5). The squeeze drive unit (9) is located inside the housing (2), and the rocker button (3) drives the separation pad (7) to move between the two contacts (5) through the squeeze drive unit (9).

2. The novel low-resistance mechanical rocker switch structure according to claim 1, characterized in that, The switching transmission assembly (4) includes a cylinder (41) fixed to the bottom of the rocker button (3), a transmission rod (42) is slidably inserted into the end of the cylinder (41), and a switching spring (43) is fixed between one end of the transmission rod (42) and the bottom of the rocker button (3). A switching push plate (44) is fixed to the bottom of the transmission rod (42).

3. The novel low-resistance mechanical rocker switch structure according to claim 1, characterized in that, The rocker conductive mechanism (6) includes an L-shaped pin (61) and a flat pin (62) disposed inside the housing (2). The bottom of the L-shaped pin (61) and the flat pin (62) both penetrate the surface of the bottom cover (1). A rocker conductive plate (63) is provided above the flat pin (62), and the lower surface of the rocker conductive plate (63) is in rotatable contact with the top of the flat pin (62). Two contacts (5) are respectively fixed on the lower surface of the rocker conductive plate (63) and the upper surface of the horizontal part of the L-shaped pin (61). The rocker conductive plate (63) is equipped with a support assembly (10).

4. The novel low-resistance mechanical rocker switch structure according to claim 3, characterized in that, The support assembly (10) includes an insulating sleeve (101) fixedly sleeved on the outside of the rocker conductive sheet (63). The insulating sleeve (101) is offset from the flat pin (62). Two support pins (102) are fixed on the side wall of the insulating sleeve (101), and the support pins (102) are rotatably connected to the side wall of the outer shell (2). The support pins (102) are coaxial with the rotational contact position of the rocker conductive sheet (63) and the flat pin (62).

5. The novel low-resistance mechanical rocker switch structure according to claim 4, characterized in that, The outer side wall of the outer casing (2) is provided with a mounting groove (11) that matches the support pin (102). A heat-conducting component (12) is fixed inside the mounting groove (11). The side wall of the heat-conducting component (12) is in rotatable contact with the support pin (102). Both the insulating sleeve (101) and the support pin (102) are made of heat-conducting material.

6. The novel low-resistance mechanical rocker switch structure according to claim 1, characterized in that, The extrusion drive unit (9) includes a movable block (91) disposed inside the housing (2). The separation pad (7) is fixed to the side wall of the movable block (91). A hemispherical protrusion (92) is fixed on the side corner of the movable block (91) away from the separation pad (7). An arc-shaped extrusion strip (93) corresponding to the position of the hemispherical protrusion (92) is fixed at the bottom of the rocker button (3). An extrusion ramp (94) is opened on the side wall of the arc-shaped extrusion strip (93) near the hemispherical protrusion (92). A reset assembly (13) connected to the movable block (91) is installed on the side wall of the housing (2). During the closing of the two contacts (5), the reset assembly (13) pushes the separation pad (7) to reset.

7. The novel low-resistance mechanical rocker switch structure according to claim 6, characterized in that, The reset assembly (13) includes a cylindrical tube (131) fixed to the inner wall of the outer shell (2), a push rod (132) is slidably inserted into the end of the cylindrical tube (131), the end of the push rod (132) is fixedly connected to the side wall of the movable block (91), and a reset spring (133) is fixed between the push rod (132) and the inner wall of the outer shell (2).

8. The novel low-resistance mechanical rocker switch structure according to claim 1, characterized in that, The bottom of the outer casing (2) is fitted with a frame-shaped pressure plate (14), and a frame-shaped sealing sleeve (15) is pressed against the bottom of the frame-shaped pressure plate (14), and the inner side wall of the frame-shaped sealing sleeve (15) is in contact with the side wall of the rocker button (3).

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