A switch structure and an oil pump switching switch

Abstract

The utility model discloses a switch structure and oil pump switch, switch structure includes mounting seat, static contact unit, movable contact unit and handle, and the mounting seat has the installation portion that protrudes upwards to the up, and the installation portion has the cavity that passes through up and down, and static contact unit is located in the cavity, and it includes with installation portion fixed link's static contact support and the static contact of fixed on static contact support, and the cavity is equipped with the sealing layer in static contact support downside, and movable contact unit rotatably is located in the cavity upper end, and it includes movable contact support and installs movable contact on movable contact support, and handle is fixed link with movable contact support and covers the upper end of cavity, and handle includes two working gears and switches through rotating, and control handle switching working gear to change the electric connection state between movable contact and static contact, and the utility model discloses through setting multiple sealing scheme, has improved the sealing protection performance, the service life and the working reliability of product significantly.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle parts, specifically relating to a switch structure and an oil pump switching switch. Background Technology

[0002] Motorcycles, all-terrain vehicles, and other motor vehicles commonly employ a dual fuel tank system with main and auxiliary fuel tanks to effectively extend their range. The reliable operation of this system relies heavily on a key electrical control component—the fuel pump switching switch—which controls the switching of the fuel pump circuit between the main and auxiliary fuel tanks.

[0003] However, since vehicles are often driven outdoors and these switches are usually exposed, the main problem with oil pump changeover switches used in such vehicles on the market is that the sealing and protection structure is poorly designed and lacks effective sealing measures. This allows rainwater, dust, and other contaminants to easily penetrate the switch, causing a decrease in the switch's functional stability, seriously affecting its operational reliability, and posing potential safety hazards. Utility Model Content

[0004] In response, this utility model provides a switch structure that improves sealing and protection performance through structural optimization, and applies the switch structure to an oil pump switching switch.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a switch structure, including a mounting base, a stationary contact unit, a moving contact unit, and a handle; the mounting base has an upwardly protruding mounting portion, and the mounting portion has a cavity that extends vertically; the stationary contact unit is disposed in the cavity, and includes a stationary contact bracket fixedly connected to the mounting portion and a stationary contact fixed on the stationary contact bracket, and a sealing layer is provided on the lower side of the stationary contact bracket in the cavity; the moving contact unit is rotatably disposed in the upper end of the cavity, and includes a moving contact bracket and a moving contact mounted on the moving contact bracket; the handle is fixedly connected to the moving contact bracket and covers the upper port of the cavity, and the handle includes two working positions that can be switched by rotation, controlling the handle to switch the working positions to change the electrical connection state between the moving contact and the stationary contact.

[0007] Preferably, the sealing layer is a sealant layer covering the lower surface of the stationary contact bracket.

[0008] Preferably, a sealing ring is provided on the outer periphery of the stationary contact bracket, and the sealing ring seals the gap between the stationary contact bracket and the inner wall of the cavity.

[0009] Preferably, a limiting stop is provided on the inner periphery of the upper port of the cavity, a stop is provided on the periphery of the moving contact bracket, and the moving contact unit is installed from the lower port of the cavity, with the upper part of the stop abutting against the limiting stop.

[0010] Preferably, the moving contact bracket is provided with a screw through hole, and the lower end of the handle is provided with a screw hole, and the fixing screw passes through the screw through hole and is screwed into the screw hole; or, the moving contact bracket and the handle are snapped together and fixed.

[0011] Preferably, the lower end of the handle is provided with a cavity, and the upper edge of the mounting part extends into the cavity and abuts against the inner wall of the cavity.

[0012] Preferably, the stationary contact bracket is fixed to the cavity by fastening screws; or, the stationary contact bracket is snapped into the cavity.

[0013] Preferably, the lower end of the moving contact bracket is provided with a stop groove, the stop groove is equipped with a stop positioning component and a stop spring that provides downward elastic force to the stop positioning component, and the upper surface of the stationary contact bracket is provided with a plurality of stop mating grooves. When the handle is in a working position, the stop positioning component and the stop mating groove at the corresponding position are mated.

[0014] Preferably, the stationary contact includes a first stationary contact, a second stationary contact, and a third stationary contact spaced apart, and the moving contact bracket is equipped with one of the moving contacts. When the handle is in one working position, the moving contact simultaneously contacts the first stationary contact and the second stationary contact. When the handle is in another working position, the moving contact simultaneously contacts the second stationary contact and the third stationary contact.

[0015] Preferably, the moving contact bracket is provided with a mounting hole, the moving contact is inserted into the mounting hole, and a contact spring that provides downward elastic force to the moving contact is installed in the mounting hole.

[0016] The advantages of this invention are as follows: The optimized structure significantly improves switching performance through an innovative layout. Specifically, the stationary contact unit is housed entirely within the cavity of the mounting section, while the moving contact unit is rotatably positioned at the upper port of the cavity. This layered layout optimizes internal space utilization. The fixed connection between the handle and the moving contact bracket, along with the handle's ability to cover the upper port of the cavity, forms the first line of defense. The upward-protruding design of the mounting section effectively prevents water accumulation and structurally eliminates the risk of external contaminant intrusion. Furthermore, a sealing layer beneath the stationary contact bracket ensures a bottom seal. This multi-layered sealing system ensures the switch maintains stable operation even in harsh environments such as rain and dust. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art are briefly introduced below. Similar elements or parts in the drawings are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a perspective view of the switch structure in this utility model.

[0019] Figure 2 for Figure 1 Side view of the switch structure shown.

[0020] Figure 3 For along Figure 2 A sectional view cut along line AA.

[0021] Figure 4 for Figure 1 An exploded view of the switch structure shown.

[0022] Figure 5 This is a schematic diagram of the moving contact unit in this utility model.

[0023] The reference numerals in the figure are as follows: 1. Mounting base; 11. Mounting part; 110. Cavity; 111. Limiting stop; 12. Sealing layer; 13. Arc groove; 2. Stationary contact unit; 21. Stationary contact bracket; 211. Gear positioning groove; 22. Stationary contact; 221. First stationary contact; 222. Second stationary contact; 223. Third stationary contact; 23. Sealing ring; 3. Moving contact unit; 31. Moving contact bracket; 311. Edge; 312. Screw hole; 313. Gear positioning groove; 314. Gear positioning element; 315. Gear spring; 316. Mounting hole; 317. Contact spring; 32. Moving contact; 33. Fixing screw; 4. Handle; 41. Cavity; 5. Fastening screw. Detailed Implementation

[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0025] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0026] The switch structure in this embodiment can be used as a fuel pump switching switch for vehicles, or as a switch for other functions. See also Figures 1 to 5The switch structure specifically includes a mounting base 1, a stationary contact unit 2, a moving contact unit 3, and a handle 4. The mounting base 1 has an upwardly protruding mounting portion 11, which has a through-cavity 110. The stationary contact unit 2 is disposed within the cavity 110 and includes a stationary contact bracket 21 fixedly connected to the mounting portion 11 and a stationary contact 22 fixedly on the stationary contact bracket 21. A sealing layer 12 is provided below the stationary contact bracket 21 within the cavity 110. The moving contact unit 3 is rotatably disposed at the upper end of the cavity 110 and includes a moving contact bracket 31 and a moving contact 32 mounted on the moving contact bracket 31. The handle 4 is fixedly connected to the moving contact bracket 31 and covers the upper port of the cavity 110. The handle 4 includes two working... The switch position is changed by rotation. During use, the user applies external force to the handle 4 to control the switching of the working position, thereby changing the electrical connection state between the moving contact 32 and the stationary contact 22. This embodiment achieves a significant improvement in switch performance through an innovative structural layout. Specifically, the stationary contact unit 2 is entirely housed within the cavity 110 of the mounting portion 11, while the moving contact unit 3 is rotatably positioned at the upper port of the cavity 110. This layered layout optimizes the utilization of internal space. The handle 4 is fixedly connected to the moving contact bracket 31, and together with the handle 4 covering the upper port of the cavity 110, forms the first line of defense for sealing. The mounting portion 11 adopts an upward-protruding design to avoid water accumulation and structurally eliminate the risk of external contaminant intrusion. Furthermore, the sealing layer 12 located under the stationary contact bracket 21 ensures a bottom seal. This multi-seal scheme ensures that the switch can maintain a stable working state even in relatively harsh environments such as rain and dust.

[0027] In this utility model, the "electrical connection state" described includes, but is not limited to, the following two situations:

[0028] Changes in connection / disconnection state: This refers to the change in state of the moving contact 32 from "on" state, which is in contact with the stationary contact 22, to "off" state, which is separated from all or part of the stationary contact 22, or from "off" state to "on".

[0029] Changes in the connection state: The moving contact 32 remains in contact with the stationary contact 22 in different operating positions, but the objects connected to the stationary contact 22 change. For example, in one operating position, stationary contacts A and B are connected simultaneously, while in another operating position, stationary contacts B and C are connected simultaneously; or, in one operating position, stationary contacts A and B are connected simultaneously, while in another operating position, stationary contacts C and D are connected simultaneously. Although the circuit remains conductive in both states, the "electrical connection state" changes because different current paths are formed.

[0030] In this embodiment, the lower end of the mounting base 1 is provided with an arc-shaped groove 13, and the lower port of the cavity 110 is located on the inner wall of the arc-shaped groove 13; a wire passage is opened at the edge of the lower port of the cavity 110, and the wire passage is used for the wire connecting the stationary contact 22 to the external circuit to pass through; the arc-shaped groove 13 is used to mate with the surface of the mounting component (such as the handlebar tube) when the switch is installed.

[0031] Preferably, the sealing layer 12 is a sealant layer covering the lower surface of the stationary contact bracket 21. This sealant layer is preferably formed by injecting liquid sealant (such as epoxy resin) into the cavity 110 to completely cover the lower surface of the stationary contact bracket 21. After curing, it forms a sealing layer 12 that is tightly bonded to the lower surface of the stationary contact bracket 21, thereby ensuring its sealing and protective performance.

[0032] In some embodiments, a sealing ring 23 is provided on the outer periphery of the stationary contact support 21. The sealing ring 23 seals the gap between the stationary contact support 21 and the inner wall of the cavity 110, which can prevent water, dust and sealant from entering during the potting and sealing stage, so as to protect the internal contacts from corrosion.

[0033] See Figure 3 and Figure 4 As shown, a limiting stop 111 is provided on the inner periphery of the upper port of the cavity 110, and a stop 311 is provided on the periphery of the moving contact bracket 31. The moving contact unit 3 is installed from the lower port of the cavity 110, and the upper part of the stop 311 abuts against the limiting stop 111, thereby limiting the moving contact unit 3 during the assembly stage. Then, the handle 4 is installed from above the mounting part 11 and fixedly connected to the mounting bracket 31, thereby realizing the effective installation of the moving contact unit 3.

[0034] Furthermore, the moving contact bracket 31 is provided with a screw through hole 312, and the lower end of the handle 4 is provided with a screw hole. The fixing screw 33 passes through the screw through hole 312 and is screwed into the screw hole. As a modified implementation, in actual operation, the moving contact bracket 31 and the handle 4 can also be fixedly connected by a snap-fit ​​method.

[0035] See Figure 3 As shown, the lower end of the handle 4 is provided with a cavity 41. The upper edge of the mounting part 11 extends into the cavity 41 and abuts against the inner wall of the cavity 41. By having the upper edge of the mounting part 11 contact the inner wall of the cavity 41, it can stop and limit the movement when the handle 4 and the moving contact bracket 31 are fixed in place. It also effectively reduces the gap between the upper edge of the mounting part 11 and the handle 4, thereby enhancing the protective performance.

[0036] Continue reading Figure 3The stationary contact bracket 21 is fixed in the cavity 110 by fastening screws 5; or as an alternative implementation, the stationary contact bracket 21 can be snapped and fixed in the cavity 110. In actual production, a suitable fixing method can be selected according to the needs, which can ensure the reliability of the connection and adapt to different production requirements.

[0037] See Figure 4 and Figure 5 The moving contact bracket 31 has a stop groove 313 at its lower end. The stop groove 313 contains a stop positioning element 314 and a stop spring 315 that provides downward elastic force to the stop positioning element 314. The upper surface of the stationary contact bracket 21 has several stop engagement grooves 211. When the handle 4 is in a working position, the stop positioning element 314 engages with the corresponding stop engagement groove 211. The stop groove 313 allows the stop positioning element 314 and the stop spring 315 to be stably installed on the moving contact bracket 31. Furthermore, combined with the stop engagement grooves 211 on the stationary contact bracket 21 (when the handle 4 is in a working position, the positioning element 314 is embedded in the corresponding stop engagement groove 211), it provides a clear tactile feedback and positioning force when the handle 4 switches working positions. This design provides clear feedback during operation, preventing ambiguous positions or misoperation. The stop positioning element 314 can be a ball bearing or a pin.

[0038] In one specific implementation plan, see Figure 4 As shown, the stationary contact 22 includes a first stationary contact 221, a second stationary contact 222, and a third stationary contact 223 spaced apart. The moving contact bracket 31 is equipped with a moving contact 32. When the handle 4 is in one working position, the moving contact 32 simultaneously contacts the first stationary contact 221 and the second stationary contact 222 to form one current path. When the handle 4 is rotated to another working position, the moving contact 32 simultaneously contacts the second stationary contact 222 and the third stationary contact 223, thereby forming another current path. This design enables the handle 4 to form a conducting circuit in both working positions. This solution can well meet the usage requirements of the oil pump switching switch (one current path connects to the main oil tank control circuit, and the other current path connects to the auxiliary oil tank control circuit).

[0039] See Figure 4 and Figure 5As shown, the moving contact bracket 31 is provided with a mounting hole 316, the moving contact 32 is installed in the mounting hole 316, and a contact spring 317 is installed in the mounting hole 316 to provide downward elastic force to the moving contact 32; the moving contact 32 is provided with continuous downward pressure by the contact spring 317 to ensure good contact between it and the stationary contact 22. This elastic pressure design can compensate for the wear of the contact surface, ensure contact reliability during long-term use, maintain stable electrical connection in vibration environment, and improve the service life of the product.

[0040] For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this invention still fall within the protection scope of this invention.

Claims

1. A switch structure, comprising a mounting base (1), a stationary contact unit (2), a moving contact unit (3), and a handle (4); characterized in that, The mounting base (1) has an upwardly protruding mounting portion (11), and the mounting portion (11) has a cavity (110) that runs vertically through it. The stationary contact unit (2) is located in the cavity (110), and includes a stationary contact bracket (21) fixedly connected to the mounting part (11) and a stationary contact (22) fixed on the stationary contact bracket (21). A sealing layer (12) is provided on the lower side of the stationary contact bracket (21) in the cavity (110). The moving contact unit (3) is rotatably disposed at the upper end of the cavity (110), and includes a moving contact bracket (31) and a moving contact (32) mounted on the moving contact bracket (31); the handle (4) is fixedly connected to the moving contact bracket (31) and covers the upper port of the cavity (110). The handle (4) includes two working positions and can be switched by rotation. The handle (4) is controlled to switch the working positions to change the electrical connection state between the moving contact (32) and the stationary contact (22).

2. The switch structure according to claim 1, characterized in that, The sealing layer (12) is a sealant layer covering the lower surface of the stationary contact bracket (21).

3. The switch structure according to claim 1, characterized in that, A sealing ring (23) is provided on the outer periphery of the stationary contact bracket (21), and the sealing ring (23) seals the gap between the stationary contact bracket (21) and the inner wall of the cavity (110).

4. The switch structure according to claim 1, characterized in that, The upper port of the cavity (110) is provided with a limiting stop (111) on the inner periphery, and the moving contact bracket (31) is provided with a stop (311) on the periphery, with the upper part of the stop (311) abutting against the limiting stop (111).

5. The switch structure according to claim 1, characterized in that, The moving contact bracket (31) is provided with a screw through hole (312), and the lower end of the handle (4) is provided with a screw hole. The fixing screw (33) passes through the screw through hole (312) and is screwed into the screw hole; or, the moving contact bracket (31) and the handle (4) are snapped together and fixed.

6. The switch structure according to claim 1, characterized in that, The lower end of the handle (4) is provided with a cavity (41), and the upper edge of the mounting part (11) extends into the cavity (41) and abuts against the inner wall of the cavity (41).

7. The switch structure according to claim 1, characterized in that, The stationary contact bracket (21) is fixed in the cavity (110) by fastening screws (5); or, the stationary contact bracket (21) is snapped and fixed in the cavity (110).

8. The switch structure according to claim 1, characterized in that, The lower end of the moving contact bracket (31) is provided with a stop groove (313), the stop groove (313) is provided with a stop positioning component (314) and a stop spring (315) that provides downward elastic force to the stop positioning component (314), the upper surface of the stationary contact bracket (21) is provided with a plurality of stop matching grooves (211), when the handle (4) is in a working position, the stop positioning component (314) and the stop matching groove (211) at the corresponding position form a match.

9. The switch structure according to claim 1, characterized in that, The stationary contact (22) includes a first stationary contact (221), a second stationary contact (222), and a third stationary contact (223) spaced apart. The moving contact bracket (31) is equipped with a moving contact (32). When the handle (4) is in one working position, the moving contact (32) simultaneously contacts the first stationary contact (221) and the second stationary contact (222). When the handle (4) is in another working position, the moving contact (32) simultaneously contacts the second stationary contact (222) and the third stationary contact (223).

10. The switch structure according to claim 1, characterized in that, The moving contact bracket (31) is provided with a mounting hole (316), the moving contact (32) is installed in the mounting hole (316), and a contact spring (317) is installed in the mounting hole (316) to provide downward elastic force to the moving contact (32).

11. An oil pump switching switch, characterized in that, The switch structure described in any one of claims 1 to 10 is adopted.

Images