A new type of gearbox switch

Abstract

The embodiment of the present invention discloses a novel gearbox switch, including a metal push rod with a convex edge at one end inserted into the metal shell from the through hole of the metal shell, a guide sleeve and a first sealing ring are sequentially sleeved on the metal push rod between the convex edge and the through hole, an insert sub-component is fixedly mounted in the metal shell, and symmetrically arranged static contact pieces are installed on both sides of the insert sub-component, a slider is installed in an opening at one end of the insert sub-component, one end of the slider is set against the convex edge, and a dynamic contact piece is sleeved on the convex column on the other side of the slider, one end of the spring is sleeved on the convex column, and the other end of the spring is sleeved on the top column of the socket splitter, the top column is located at the center of one end of the socket splitter away from the socket head plug-in, the socket splitter is snap-connected with the metal shell, and the insert sub-component is set against the socket splitter. The novel gearbox switch can realize dynamic sealing, and is provided with a sliding plate structure with a self-cleaning function, the switch is reliable in conduction contact, and the switch can be realized as normally open or normally closed without changing the appearance.

Description

Technical Field

[0001] The invention relates to the field of automobile parts, and in particular to a novel gearbox switch. Background Art

[0002] Today's automotive transmission switches have many defects due to the limitations of installation space and connection relationships. With the development of vehicle intelligence and information technology, many on-board switches have become signal transmission. More and more practices have proved that the switch structure originally suitable for large loads is no longer suitable for the requirements of modern signal switches (low current). The reason is that most large-load switches are contact pressure-touch structures, which cannot avoid arcing (or other oxidized foreign matter, etc.) at the contact points, and the small load current is not enough to break through these accumulated foreign matter and cause poor conduction; in addition, due to the influence of its own structure, it is difficult for the same transmission switch to have both normally open and normally closed functions at the same time, and the sealing effect of the switch is not good. Summary of the invention

[0003] The technical problem to be solved by the embodiment of the present invention is that a new type of gearbox switch is proposed to solve the problems that the current automobile gearbox switch has poor conduction, poor sealing effect, and cannot have both normally open and normally closed functions.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a novel gearbox switch, which comprises: a socket separation and combination part, a metal push rod, a metal shell and an insert sub-part; one end of the metal push rod with a convex edge is inserted into the metal shell from the through hole of the metal shell, and a guide sleeve and a first sealing ring are sequentially sleeved on the metal push rod between the convex edge and the through hole; the insert sub-part is fixedly clamped in the metal shell, and both ends are set as an open structure, and symmetrically arranged static contact pieces are installed on both sides thereof; a slider is installed in an opening at one end of the insert sub-part, one end of the slider is set to abut against the convex edge, and four blocking angles are set around the other side, a convex column is set at the center, a moving contact piece is sleeved on the convex column, and two contacts of the moving contact piece extend outward, one end of the spring is sleeved on the convex column and abuts against the moving contact piece, and the other end of the spring is sleeved on the top column of the socket separation and combination part, the top column is located at the center of one end of the socket separation and combination part away from the socket head plug-in, and is located on the same straight line as the convex column, the socket separation and combination part is clamped and connected with the metal shell, and the insert sub-part is set to abut against the socket separation and combination part.

[0005] Among them, the end of the metal shell facing the metal push rod is set as a cylindrical boss, the outer wall of the cylindrical boss is a threaded structure, the first sealing ring and the guide sleeve are both installed in the cylindrical boss and clamped by the convex edge of the metal push rod.

[0006] Among them, a circle of card slots is opened at one end of the metal shell away from the metal push rod, and a second sealing ring is installed in the card slot. The end of the socket separation and combination part is clamped in the card slot and sealed by the second sealing ring.

[0007] A groove is provided at the center of one side of the socket separation and combination part facing the metal shell, and the top column is arranged in the groove.

[0008] Among them, the moving contact piece is a convex structure, including a horizontal piece on the top and two symmetrically arranged contact pieces connected to the horizontal piece. A convex column through hole is opened on the horizontal piece, and the moving contact piece is sleeved on the convex column through the convex column through hole.

[0009] Among them, the inner wall of the first sealing ring is a double-arc structure, which is connected with the metal push rod by interference fit.

[0010] Among them, when the new gearbox switch is normally open, the insert subassembly is a normally open insert subassembly, in which the two static contacts are installed at one end of the normally open insert subassembly close to the socket separating and combining part, and in a natural state, the two static contacts are not in contact with the two moving contacts, and when the metal push rod is pressed down, the two moving contacts move in a stroke and contact with the two static contacts to form a switch path; when the new gearbox switch is normally closed, the insert subassembly is a normally closed insert subassembly, in which the two static contacts are installed at one end of the normally closed insert subassembly close to the slider, and in a natural state, the two static contacts are in contact with the two moving contacts to form a switch path, and when the metal push rod is pressed down, the two moving contacts move in a stroke and disconnect from the two static contacts, and the path is disconnected.

[0011] The implementation of the embodiments of the present invention has the following beneficial effects: the novel gearbox switch can realize dynamic sealing, and is provided with a sliding vane structure with a self-cleaning function, the switch conduction contact is reliable, and the switch can be normally open or normally closed without changing the appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the exploded structure of the novel gearbox switch of the present invention;

[0014] Figure 2 It is a schematic diagram of the external structure of the novel transmission switch of the present invention;

[0015] Figure 3 It is a schematic diagram of the normally open cross-sectional structure of the novel transmission switch of the present invention;

[0016] Figure 4 It is a structural schematic diagram of the normally open insert sub-components of the novel gearbox switch of the present invention;

[0017] Figure 5 It is a schematic diagram of the normally closed cross-sectional structure of the novel transmission switch of the present invention;

[0018] Figure 6 It is a structural schematic diagram of the normally closed insert sub-components of the novel gearbox switch of the present invention;

[0019] Figure 7 It is a schematic structural diagram of the first sealing ring of the present invention. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-2 , Figure 1 It is a schematic diagram of the exploded structure of the novel gearbox switch of the present invention; Figure 2 The schematic diagram of the external structure of the novel gearbox switch of the present invention includes: a socket splitter 10, a top column 11, a metal top rod 20, a flange 21, a guide sleeve 22, a first sealing ring 23, a metal shell 30, a through hole 31, a cylindrical boss 32, a threaded structure 33, a slot 34, a second sealing ring 35, a slider 41, a stop angle 42, a boss 43, a moving contact piece 44, a contact piece 45, a spring 46, a horizontal piece 47, a boss through hole 48, a normally open insert sub-component 49, a static contact piece 50 and a normally closed insert sub-component 51.

[0022] The novel gearbox switch comprises: a socket splitter and assembler 10, a metal push rod 20, a metal shell 30 and an insert splitter 40.

[0023] One end of the metal push rod 20 with the convex edge 21 is inserted into the metal shell 30 from the through hole 31 of the metal shell 30, and the metal push rod 20 between the convex edge 21 and the through hole 31 is sequentially sleeved with a guide sleeve 22 and a first sealing ring 23. The inner wall of the first sealing ring 23 is a double arc structure, and is connected to the metal push rod 20 by interference fit.

[0024] The end of the metal shell 30 facing the metal push rod 20 is set as a cylindrical boss 32, and the outer wall of the cylindrical boss 32 is a threaded structure 33. The first sealing ring 23 and the guide sleeve 22 are both installed in the cylindrical boss 32 and clamped by the convex edge 21 of the metal push rod 20.

[0025] The insert sub-assembly is fixedly mounted in the metal housing 30, and the two ends are set as an open structure, and the two sides are installed with symmetrically arranged static contact pieces 50. The slider 41 is installed in the opening at one end of the insert sub-assembly, and the end of one side of the slider 41 is set against the convex edge 21, and four stop angles 42 are set around the other side, and a convex column 43 is set in the center. The moving contact piece 44 is a convex structure, including a cross piece 47 at the top and two symmetrically arranged contact pieces 45 connected to the cross piece 47. The cross piece 47 is provided with a convex column through hole 48. The moving contact piece 44 is sleeved on the convex column 43 through the convex column through hole 48, and the two contact pieces 45 extend outward. One end of the spring 46 is sleeved on the protruding column 43 and is arranged to abut against the moving contact piece 44. The other end of the spring 46 is sleeved on the top column 11 of the socket separation part 10. The socket separation part 10 has a groove 13 at the center of one side facing the metal shell 30. The top column 11 is set at the center position of the groove 13 and is located on the same straight line as the protruding column 43.

[0026] A groove 34 is formed in the metal housing 30 at one end away from the metal push rod 20. A second sealing ring 35 is installed in the groove 34. The end of the socket separation part 10 is clamped in the groove 34 and sealed by the second sealing ring 35. The insert separation part is arranged to contact the socket separation part 10.

[0027] In this embodiment, the novel gearbox switch includes a normally open structure and a normally closed structure. Among them, the insert sub-components are all injection-molded by a static contact piece 50 and an injection molded part 52, and the static contact piece 50 of the normally open insert sub-component 49 and the normally closed insert sub-component 51 is different in size and installation position.

[0028] When normally open, the insert subassembly is a normally open insert subassembly 49. In the normally open insert subassembly 49, two static contacts 50 are installed at one end of the normally open insert subassembly 49 close to the socket separation and combination part 10. In the natural state, the two static contacts 50 are not in contact with the two moving contacts 44. When the metal push rod 20 is pressed down, the two moving contacts 44 move and contact with the two static contacts 50 to form a switch path. Figure 3 and Figure 4 , Figure 3 It is a schematic diagram of the normally open cross-sectional structure of the novel transmission switch of the present invention; Figure 4 It is a structural schematic diagram of the normally open insert sub-components of the novel transmission switch of the present invention.

[0029] When normally closed, the insert subassembly is a normally closed insert subassembly 51. In the normally closed insert subassembly 51, two static contacts 50 are installed at one end of the normally closed insert subassembly 51 close to the slider 41. In the natural state, the two static contacts 50 are in contact with the two moving contacts 44 to form a switch path. When the metal push rod 20 is pressed down, the two moving contacts 44 move and disconnect from the two static contacts 50, and the path is disconnected. Figure 5 and Figure 6 , Figure 5 It is a schematic diagram of the normally closed cross-sectional structure of the novel transmission switch of the present invention; Figure 6 It is a structural schematic diagram of the normally closed insert sub-components of the novel transmission switch of the present invention.

[0030] This new type of gearbox switch uses the elastic interference fit of the inner circle of the first sealing ring and the outer circle of the metal push rod to achieve dynamic sealing (axial linear motion of the metal push rod). The cross section of the first sealing ring is designed to be double arc-shaped to achieve double insurance. The first sealing ring is assembled on the metal shell, and the metal shell fixes the first sealing ring through interference fit or riveting with the guide sleeve. It has a simple structure, good sealing effect, strong installation processability and low cost. Please refer to Figure 7 , Figure 7 It is a schematic structural diagram of the first sealing ring of the present invention.

[0031] The novel gearbox switch is a slide-type switch with a self-cleaning structure, which makes the switch reliable, simple in structure, easy to assemble and low in cost.

[0032] The novel gearbox switch is cleverly combined in structure. Under the condition that the appearance and main structure remain unchanged, only different static contact inserts (normally open insert sub-components and normally closed insert sub-components) need to be replaced to realize the switch being normally open or normally closed. The utilization rate of parts is high, the number of molds is reduced, and the cost is low.

[0033] The implementation of the embodiments of the present invention has the following beneficial effects: the novel gearbox switch can realize dynamic sealing, and is provided with a sliding vane structure with a self-cleaning function, the switch conduction contact is reliable, and the switch can be normally open or normally closed without changing the appearance.

[0034] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gearbox switch, characterized in that: The gearbox switch comprises: a socket splitter, a metal push rod, a metal shell and an insert sub-component; one end of the metal push rod with a convex edge is inserted into the metal shell from the through hole of the metal shell, and a guide sleeve and a first sealing ring are sequentially sleeved on the metal push rod between the convex edge and the through hole; the insert sub-component is fixedly clamped in the metal shell, and both ends are set as an open structure, and symmetrically arranged static contact pieces are installed on both sides of the structure; a slider is installed in an opening at one end of the insert sub-component, and one end of the slider abuts against the convex edge. The socket is provided with a plurality of retaining angles, and the other side thereof is provided with four retaining angles around, and a convex column is provided in the center, and a moving contact piece is sleeved on the convex column, and two contact pieces of the moving contact piece extend outward, and one end of the spring is sleeved on the convex column and is arranged to abut against the moving contact piece, and the other end of the spring is sleeved on the top column of the socket separation and combination part, and the top column is located at the center of one end of the socket separation and combination part away from the socket head plug-in, and is located on the same straight line as the convex column, and the socket separation and combination part is connected with the metal shell by snapping, and the insert separation part is arranged to abut against the socket separation and combination part; The socket separation and combination part is provided with a groove at the center of one side facing the metal shell, the top column is arranged in the groove, the moving contact piece is a convex structure, including a top transverse piece and two symmetrically arranged contact pieces connected to the transverse piece, the transverse piece is provided with a convex column through hole, the moving contact piece is sleeved on the convex column through the convex column through hole, when the gearbox switch is normally open, the insert sub-assembly is a normally open insert sub-assembly, in which the two static contact pieces are installed in the normally open insert sub-assembly close to one end of the socket separation and combination part, and in a natural state, the two static contact pieces are The contact piece is not in contact with the two moving contact pieces. When the metal push rod is pressed down, the two moving contact pieces move in a stroke and contact with the two static contact pieces to form a switch path. When the gearbox switch is normally closed, the insert subassembly is a normally closed insert subassembly. In the normally closed insert subassembly, the two static contact pieces are installed at one end of the normally closed insert subassembly close to the slider. In a natural state, the two static contact pieces contact with the two moving contact pieces to form a switch path. When the metal push rod is pressed down, the two moving contact pieces move in a stroke and are disconnected from the two static contact pieces, and the path is disconnected.

2. The gearbox switch according to claim 1, characterized in that: The end of the metal shell facing the metal push rod is arranged as a cylindrical boss, the outer wall of the cylindrical boss is a threaded structure, the first sealing ring and the guide sleeve are both installed in the cylindrical boss and clamped by the convex edge of the metal push rod.

3. The gearbox switch according to claim 1, characterized in that: A circle of card slots is provided in one end of the metal shell away from the metal push rod, a second sealing ring is installed in the card slot, and the end of the socket separation and combination part is clamped in the card slot and sealed by the second sealing ring.

4. The gearbox switch according to claim 1, characterized in that: The inner wall of the first sealing ring is a double arc structure and is connected with the metal ejector rod by interference fit.

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