Microswitch for gas stove

Abstract

The application provides a micro switch of gas stove, which comprises a bottom shell and an upper cover that are buckled with each other, a spring sheet is clamped in the bottom shell, a stripped wire conducting groove with an upper opening is formed on the spring sheet, a wire pressing protrusion is protruded in the upper cover, and the wire pressing protrusion can be horizontally clamped into the stripped wire conducting groove. The spring sheet is a thin conductive metal sheet with a thin thickness, a stripped wire conducting groove is longitudinally formed on the spring sheet, the groove opening of the stripped wire conducting groove has a blade opening shearing effect, the groove width of the stripped wire conducting groove is limited to the width of the wire core after the insulating layer is stripped, and the wire core can be tightly combined with the stripped wire conducting groove to realize electrical connection. Through the mutual cooperation of the stripped wire conducting groove and the wire pressing protrusion, the micro switch does not need additional stripping, welding and other processes before assembly, and the wire is placed above the stripped wire conducting groove during the buckling process of the upper cover and the bottom shell, so that the requirements of stripping and electrical connection can be realized at the same time, and the structure is simple and the assembly operation is convenient and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of gas stoves, in particular to a micro switch for a gas stove. Background Art

[0002] The wiring for a typical gas stove microswitch consists of an insulated housing with a built-in conductive moving and static reeds, as well as an external lever and slide button for actuating the moving reed. The moving and static reeds are each led out of the housing via wires. Current microswitches typically connect the wires to the moving and static reeds by welding, which requires stripping the insulation before welding. This process is not only cumbersome but can also cause the core wire to be cut accidentally during stripping. This requires high operator skill and can easily lead to unnecessary waste, impacting product quality and yield. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a gas stove micro switch with a simple structure and convenient and reliable wire installation and electrical connection.

[0004] The present invention achieves the above object by:

[0005] A gas stove micro switch is provided, comprising a bottom shell and an upper cover that are interlocked with each other, wherein a spring is clamped in the bottom shell and a wire stripping conductive groove with an upper opening is formed on the spring, and a wire pressing protrusion is protruded in the upper cover and can be laterally clamped in the wire stripping conductive groove.

[0006] Furthermore, the middle of the wire pressing protrusion and the position corresponding to the wire stripping conductive groove are recessed to form an air avoidance groove, and the wire pressing protrusions on both sides of the air avoidance groove are respectively inserted into both sides of the wire stripping conductive groove.

[0007] Furthermore, a limiting protrusion is protruding from the bottom of the air-avoiding groove, and the protruding height of the limiting protrusion is lower than the line-pressing protrusions on both sides.

[0008] Furthermore, the wire stripping conductive groove includes a V-shaped notch at the opening and a longitudinal long groove below.

[0009] Furthermore, the cross section of the wire pressing protrusion is in a small V-shape adapted to the V-shaped incision.

[0010] Furthermore, a lead groove is provided on the outer side of the wire stripping and conductive groove of the bottom shell, and the wire pressing protrusion can be half-embedded in the lead groove.

[0011] Furthermore, the spring piece includes an L-shaped static spring piece, the static spring piece includes a short side and a long side, the wire stripping conductive groove is opened on the short side, and a top block is provided in the bottom shell and is located on the inner side of the long side.

[0012] Furthermore, the reed includes an L-shaped dynamic reed, which includes a fixed edge and a dynamic edge. The wire stripping conductive groove is opened on the fixed edge. The bottom shell is provided with a top block 2 which is arranged at the inner corner of the dynamic reed. The free end of the dynamic edge is provided with an outer arc-shaped contact surface, and the outer arc-shaped contact surface points to the outside of the long side.

[0013] Furthermore, a through hole is opened on the side of the bottom shell, and an elastic button is movably installed in the through hole, and the inner end of the elastic button is placed on the outer side of the movable edge.

[0014] Beneficial effects of the present invention: The present invention provides a gas stove microswitch, comprising a bottom shell and an upper cover that interlock with each other, a spring plate clamped in the bottom shell, a wire stripping conductive groove with an upper opening on the spring plate, a wire pressing protrusion convexly provided in the upper cover, and the wire pressing protrusion can be laterally clamped into the wire stripping conductive groove. The spring plate is a thin conductive metal sheet with a wire stripping conductive groove longitudinally provided on it. The slot of the wire stripping conductive groove has the cutting edge shearing effect of the sheet opening. The slot width of the wire stripping conductive groove is limited to accommodate the width of the wire core after the insulation layer is stripped off, and the wire core can be tightly fitted with the wire stripping conductive groove to achieve electrical connection. Through the mutual cooperation of the wire stripping conductive groove and the wire pressing protrusion, this microswitch does not require additional wire stripping, welding and other processes before assembly. Instead, during the interlocking process of the upper cover and the bottom shell, the wire is placed above the wire stripping conductive groove, thereby achieving the requirements of wire stripping and electrical connection at the same time. The structure is simple and the assembly operation is convenient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the technical problems to be solved by the present invention, the technical means adopted and the beneficial effects more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the overall assembly structure of an embodiment of a gas stove micro switch;

[0017] Figure 2 for Figure 1 Schematic diagram of split structure;

[0018] Figure 3 for Figure 1 Schematic diagram of the AA section structure;

[0019] Figure 4 for Figure 3 The enlarged structural diagram at C in the middle;

[0020] Figure 5 for Figure 1 Schematic diagram of the BB cross-section structure;

[0021] Figure 6 for Figure 1 Schematic diagram of the structure of the middle moving reed and the static reed;

[0022] Figure 7 for Figure 5 Schematic diagram of the D-direction pressure line status.

[0023] In the figure, 1 is a bottom shell, 11 is a lead groove, 12 is a top block 1, 13 is a top block 2, 14 is a through hole, 2 is an upper cover, 21 is a wire pressing protrusion, 211 is an air avoidance groove, 212 is a limit protrusion, 3 is a spring, 31 is a wire stripping conductive groove, 311 is a V-shaped incision, 312 is a longitudinal long groove, 32 is a moving spring, 321 is a fixed edge, 322 is a moving edge, 323 is an outer arc-shaped contact surface, 33 is a static spring, 331 is a short edge, 332 is a long edge, 4 is an elastic button, 5 is a wire, and 51 is a wire core wire. DETAILED DESCRIPTION

[0024] The gas stove microswitch of the present invention includes a bottom shell 1 and an upper cover 2 that are interlocked with each other. A reed 3 is clamped in the bottom shell 1, and a wire stripping conductive groove 31 with an upper opening is formed on the reed 3. A wire pressing protrusion 21 is convexly provided in the upper cover 2, and the wire pressing protrusion 21 can be horizontally clamped into the wire stripping conductive groove 31.

[0025] As attached Figures 1 to 7 As shown, the spring 3 is a thin conductive metal sheet with a stripping groove 31 longitudinally defined thereon. The notch of the stripping groove 31 has the same shearing effect as the opening of the sheet. The width of the stripping groove 31 is limited to accommodate the width of the wire core after the insulation layer is stripped, and the wire core fits tightly into the stripping groove 31 to achieve electrical connection. During operation, the insulated wire is first placed at the opening of the stripping groove 31. The upper cover 2 is then buckled onto the bottom shell 1. The wire pressing protrusion 21 on the inner side of the upper cover 2 is aligned with the wire and the top of the stripping groove 31. During the downward pressing process, the wire is pressed downward by the wire pressing protrusion 21, and the bottom surface of the wire is subjected to the upward shear force of the thin stripping groove 31, causing the insulation layer of the wire to be cut by the notch. As the pressure continues to fall, the cut insulation layer splits to the sides, exposing the wire core. Under the pressure of the wire pressing protrusion 21, the wire core continues to descend to the bottom of the stripping groove 31, finally achieving electrical connection between the wire core and the notch. Through the mutual cooperation between the wire stripping conductive groove 31 and the wire pressing protrusion 21, this micro switch does not require additional wire stripping, welding and other processes before assembly. Instead, during the buckling process of the upper cover 2 and the bottom shell 1, the wires are placed above the wire stripping conductive groove 31 to simultaneously achieve the requirements of wire stripping and electrical connection. The structure is simple and the assembly operation is convenient and reliable.

[0026] Preferably, the middle of the wire pressing protrusion 21 is recessed at a position corresponding to the wire stripping conductive groove 31 to form an air avoidance groove 211 , and the wire pressing protrusions 21 on both sides of the air avoidance groove 211 are respectively inserted into both sides of the wire stripping conductive groove 31 .

[0027] As shown in the accompanying drawings, since the spring sheet 3 is a thin conductive metal sheet, the notch of the wire stripping conductive groove 31 on it has the cutting edge shearing effect of the thin plate opening. At the same time, since the air-avoiding groove 211 divides the wire pressing protrusion 21 into two pieces, when the upper cover 2 is buckled onto the bottom shell 1, the two wire pressing protrusions 21 contact the wire and press the wire as a whole downward. During the downward process, the bottom surface of the middle of the wire contacts the wire stripping conductive groove 31, and the insulation layer on the bottom surface of the wire is cut open, and the wire core is exposed after cracking to both sides. The wire core continues to move downward to the stripping conductive groove 31. The bottom of the wire conductive groove 31 stops descending. At this time, the core wire of the wire can achieve stable electrical connection with the groove side and groove bottom of the wire stripping conductive groove 31. In this embodiment, the protruding length of the two wire pressing protrusions 21 can make the core wire of the wire contact with the bottom of the wire stripping conductive groove 31 and then continue to press down the wires on both sides, so that the core wires of the wires on both sides are slightly lower than the height of the core wires of the wires in the wire stripping conductive groove 31. In this way, the two wire pressing protrusions 21 on both sides can further ensure that the core wire of the wire with the insulation layer stripped off in the middle is tightly electrically connected to the wire stripping conductive groove 31. Since the air-avoidance groove 211 is located above the wire stripping conductive groove 31, free space is left above the wire above it. Therefore, the wire is subjected to downward pressure only on both sides of the wire stripping conductive groove 31 during the entire wire pressing and stripping process. Since the insulation layer of the wire has a certain elasticity, when the insulation layer below the wire is cut, the middle of the cut is subjected to the upward pressure of the wire stripping conductive groove 31, while the two sides are subjected to downward pressure from the two wire pressing protrusions 21, which can help the cut insulation layer to be further torn to both sides to ensure the wire stripping effect.

[0028] Preferably, a limiting protrusion 212 is protruded from the bottom of the air-avoiding groove 211 , and the protruding height of the limiting protrusion 212 is lower than the line-pressing protrusions 21 on both sides.

[0029] As the bottom surface of the wire is cut and moves downward, the insulation layer stripped in the middle of the wire will be pushed upward and accumulated by the wire stripping conductive groove 31. In order to better prevent the wire core from being pushed upward, the protruding limiting protrusion 212 applies downward pressure to the center of the wire, so that the stripped insulation layer can be accumulated upward from the outside of the wire core, thereby ensuring that the middle wire core continues to move downward to the bottom of the wire stripping conductive groove 31.

[0030] Preferably, the wire stripping conductive groove 31 includes a V-shaped notch 311 at the opening and a longitudinal long groove 312 at the bottom.

[0031] As shown in the drawings, the wire-stripping conductive slot 31 is divided into two sections, the upper half is a V-shaped cut 311, which is convenient for positioning the wire with insulation, and the lower half is a longitudinal narrow slot 312, which is convenient for pushing the stripped wire core and making the wire core electrically connected with the inner side of the longitudinal narrow slot 312. The two sides of the V-shaped cut 311 are inclined to the middle at a certain angle, when the upper wire-pressing block 21 is pressed downward, the two inclined sides further cut the wire with insulation, which makes it easier to strip the wire with insulation, and at the same time, the two inclined sides guide the stripped wire core downward and make it enter the longitudinal narrow slot 312 more accurately.

[0032] Preferably, the cross section of the wire-pressing block 212 is a small V shape which is suitable for the V-shaped cut 311.

[0033] As shown in the drawings, the small V-shaped wire-pressing block 212 has better strength, which can avoid breaking of the wire-pressing block 212 due to the reaction force of the wire, and when the small V-shaped wire-pressing block 212 coincides with the V-shaped cut 311, the gap between the two sides of the small V-shaped wire-pressing block 212 is wider from bottom to top, which is convenient for the stripped wire insulation to accumulate in the gap. Figure 4

[0034] Preferably, the bottom shell 1 is provided with a lead slot 11 outside the wire-stripping conductive slot 31, and the wire-pressing block 21 can be half-embedded in the lead slot 11.

[0035] As shown in the drawings, the wire-pressing block 21 is half-embedded in the lead slot 11, which can press the wire in the lead slot 11 tightly, on the one hand, it can prevent the wire-stripping port from expanding outward, and on the other hand, it can prevent the wire from being accidentally pulled out of the micro switch.

[0036] Preferably, the spring 3 includes a static spring 33 in L shape, the static spring 33 includes a short side 331 and a long side 332, the wire-stripping conductive slot 31 is provided on the short side 331, and the bottom shell 1 is provided with a top block one 12 which is arranged on the inner side of the long side 332.

[0037] Preferably, the spring 3 includes a dynamic spring 32 in L shape, the dynamic spring 32 includes a fixed side 321 and a dynamic side 322, the wire-stripping conductive slot 31 is provided on the fixed side 321, the bottom shell 1 is provided with a top block two 13 which is arranged at the inner side corner of the dynamic spring 32, the free end of the dynamic side 322 is provided with an outer arc-shaped contact surface 323, and the outer arc-shaped contact surface 323 points to the outer side of the long side 332.

[0038] Preferably, the bottom shell 2 is provided with a through hole 14, and the through hole 14 is movably provided with a resilient button 4, and the inner end of the resilient button 4 is arranged on the outer side of the dynamic side 332.

[0039] ​As shown in the drawings, the L-shaped static spring sheet 33 and the dynamic spring sheet 33 are respectively clamped in the bottom shell 1 and are staggered and overlapped in the bottom shell 1, so that the space arrangement of the micro switch in the bottom shell 1 is more compact. The outer arc-shaped contact surface 323 of the dynamic spring sheet 33 points to the outside of the long side 332, and sufficient space is left therebetween. The elastic button 4 is linearly movable in the through hole 14, and the inner end is tightly topped to the outside of the dynamic side 322 in the bottom shell 1. The outside of the dynamic side 322 is arranged in an inwardly curved arc shape, which can ensure that the elastic button 4 can always be in electrical contact with the outside of the dynamic side 322 during linear movement forward and backward. Pushing the elastic button 4 can push the dynamic side 322 to be elastically bent inward around the top block one 12. The outer arc-shaped contact surface 323 of the dynamic side 322 contacts the long side 332 to be electrified. The top block two 13 can prevent the long side 332 from being bent inward, and ensure the stable electrical contact between the outside of the long side 332 and the outer arc-shaped contact surface 323.

[0040] In summary, the micro switch structure of the gas stove is simple, and the installation and electrical connection of the wire are convenient and reliable.

[0041] In the detailed description of the present application, the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation or positional relationship, therefore cannot be understood as a limitation on the present application. It can be understood that the above examples only express the preferred embodiments of the present application, which are described in more detail and in detail, but cannot be understood as a limitation on the scope of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and some modifications and improvements can be made, which all belong to the protection scope of the present application; therefore, any equivalent transformation and modification of the claims and scope of the present application shall belong to the scope of the claims of the present application.

Claims

1. A gas stove micro switch, characterized by: The invention comprises a bottom shell (1) and an upper cover (2) which are interlocked with each other, a spring (3) is clamped in the bottom shell (1), a wire stripping conductive groove (31) with an upper opening is provided on the spring (3), a wire pressing protrusion (21) is convexly provided in the upper cover (2), and the wire pressing protrusion (21) is laterally clamped into the wire stripping conductive groove (31); the middle part of the wire pressing protrusion (21) is concave at a position corresponding to the wire stripping conductive groove (31) to form an air-avoiding groove (211), and the wire pressing protrusions (21) on both sides of the air-avoiding groove (211) are respectively clamped into both sides of the wire stripping conductive groove (31) The bottom of the air-avoiding groove (211) is provided with a limiting protrusion (212), and the protruding height of the limiting protrusion (212) is lower than the wire pressing protrusions (21) on both sides; the wire stripping conductive groove (31) includes a V-shaped incision (311) at the opening and a longitudinal long groove (312) below; the cross section of the limiting protrusion (212) is a small V-shape adapted to the V-shaped incision (311); a lead groove (11) is provided on the outer side of the wire stripping conductive groove (31) of the bottom shell (1), and the wire pressing protrusion (21) is half-embedded in the lead groove (11).

2. The gas stove micro switch according to claim 1, characterized in that: The reed (3) includes an L-shaped static reed (33), the static reed (33) including a short side (331) and a long side (332), the wire stripping conductive groove (31) is opened on the short side (331), and a top block (12) is provided in the bottom shell (1) and is arranged on the inner side of the long side (332).

3. The gas stove micro switch according to claim 2, characterized in that: The spring piece (3) includes an L-shaped movable spring piece (32), and the movable spring piece (32) includes a fixed edge (321) and a movable edge (322). The wire stripping conductive groove (31) is provided on the fixed edge (321). A second top block (13) is provided in the bottom shell (1) and is arranged at the inner corner of the movable spring piece (32). The free end of the movable edge (322) is provided with an outer arc-shaped contact surface (323), and the outer arc-shaped contact surface (323) points to the outside of the long edge (332).

4. The gas stove micro switch according to claim 3, characterized in that: A through hole (14) is provided on the side of the bottom shell (1), and an elastic button (4) is movably installed in the through hole (14), with the inner end of the elastic button (4) being located on the outer side of the movable edge (322).

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