Solenoid valves and wearable devices

Abstract

Solenoid valves (4015, 500, 600) and wearable devices are provided. The solenoid valve (4015, 500, 600) includes a housing (1), an electromagnetic component (2), a valve plug component (4), and a reset component (3). The electromagnetic component (2) includes a magnetic yoke (21) and a coil (22). The magnetic yoke (21) is provided with a second medium flow path (72) and a first housing space (213) configured to accommodate the coil (22). The electromagnetic component (2) and the housing (1) are fixed together to form a housing cavity configured to accommodate the valve plug component (4) and the reset component (3). The valve plug component (4) is provided between the electromagnetic component (2) and the housing (1). The reset component (3) is provided on the side of the valve plug component (4) facing the electromagnetic component (2), and / or on the side of the valve plug component (4) away from the electromagnetic component (2). The first medium flow path (71) and the second medium flow path (72) are provided on the housing (1) and magnetic yoke (21), respectively, and the electromagnetic component (2) and the reset component (3) are configured to drive and move the valve plug component (4) when the power to the coil (22) is on and when the power to it is off, respectively, allowing the first medium flow path (71) to communicate with or isolate from the second medium flow path (72). The above technical solution can reduce the size of the solenoid valve (4015, 500, 600) to meet the spatial requirements of the electronic device, achieve miniaturization of the electronic device, and further improve the sealing performance of the solenoid valve (4015, 500, 600).

Claims

1. A first media flow path is provided on the housing, the housing and An electromagnetic component comprising a magnetic yoke and a coil, wherein a second spaced-apart medium channel and a first housing space are provided on the magnetic yoke, the coil is housed in the first housing space, and the electromagnetic component and the housing are fixed to form a housing cavity, A valve plug component is housed in the aforementioned housing cavity and provided between the electromagnetic component and the housing, A reset component housed within the aforementioned housing cavity, wherein the reset component is provided on the side of the valve plug component facing the electromagnetic component and / or on the side of the valve plug component away from the electromagnetic component, Equipped with, The electromagnetic component is configured to drive and move the valve plug component when the power to the coil is turned on, and the reset component is configured to drive and move the valve plug component when the power to the coil is turned off, enabling the first medium flow path to communicate with or isolate the second medium flow path. Solenoid valve.

2. The first groove is provided on the side of the housing facing the magnetic yoke, The magnetic yoke comprises a first body and a projection protruding from the surface of the first body, the first body being connected to the housing, the first housing space being provided on the projection, and the projection being housed in the first groove. The solenoid valve according to claim 1.

3. The first medium flow path communicates with the first groove, The second media channel communicates with the first groove, The solenoid valve according to claim 2.

4. The first medium flow path comprises a first opening and a second opening, wherein the first opening is provided in the bottom wall or side wall of the first groove, and the second opening is provided in the outer wall of the housing, and / or The second medium flow path comprises a third opening and a fourth opening, wherein the third opening is provided on the surface of the projection facing the bottom wall of the first groove, and the fourth opening is provided on the surface of the first body away from the bottom wall of the first groove. The solenoid valve according to claim 2 or 3.

5. The solenoid valve according to any one of claims 2 to 4, wherein the projection comprises a first projection and a second projection, the second projection being provided around the first projection, and the first accommodation space being formed between the first projection and the second projection.

6. The solenoid valve according to claim 5, wherein the opening in the second medium flow path, which is close to the valve plug component, is provided on the surface of the first projection facing the bottom wall of the first groove.

7. The solenoid valve according to any one of claims 2 to 6, wherein the reset component comprises an elastic member, the elastic member is fitted over the projection, one end of the elastic member presses against the valve plug component, and the other end of the elastic member presses against the first body.

8. The solenoid valve according to claim 7, wherein the elastic member is one of a spring, a corrugated pipe, and an elastic block.

9. When the power to the coil is turned on, the magnetic yoke attracts the valve plug component, the elastic member is in a compressed state, and the valve plug component comes into contact with the projection under the action of the magnetic force of the magnetic yoke and the elastic force of the elastic member. The solenoid valve according to claim 7 or 8.

10. The solenoid valve according to any one of claims 2 to 9, wherein the reset component comprises a magnetic member, the magnetic member is housed in a second housing space provided on the housing, the second housing space is close to the bottom wall of the first groove and corresponds to the position of the valve plug component, the magnetic member and the coil are provided on both sides of the valve plug component, and a magnetic attractive force exists between the magnetic member and the valve plug component.

11. The solenoid valve according to claim 10, wherein the magnetic member is incorporated into the housing using an insert molding process.

12. When the power to the coil is turned on, the magnetic yoke attracts the valve plug component, and the valve plug component comes into contact with the projection under the action of the magnetic force of the magnetic yoke and the magnetic force of the magnetic member. The solenoid valve according to claim 10 or 11.

13. When the power to the coil is turned on, the valve plug component blocks the second media flow path, and when the power to the coil is not turned on, the first media flow path communicates with the second media flow path via the first groove, or When the power to the coil is not turned on, the valve plug component blocks the first media flow path, and when the power to the coil is turned on, the first media flow path communicates with the second media flow path via the first groove. The solenoid valve according to any one of claims 2 to 12.

14. The solenoid valve according to any one of claims 2 to 13, wherein the valve plug component comprises a sealing member and a separator, and the separator is configured to drive and move the sealing member under the drive of the electromagnetic component or the reset component, thereby blocking the first medium flow path or the second medium flow path.

15. The end of the sealing member closest to the first media flow path protrudes toward the first media flow path relative to the separator, and / or The end of the sealing member closest to the second media flow path protrudes toward the second media flow path relative to the separator. The solenoid valve according to claim 14.

16. A second groove communicating with the second media channel is provided on the side of the projection facing the bottom wall of the first groove, and the second groove is configured to accommodate the portion of the sealing member that protrudes toward the second media channel relative to the separator, and / or A third groove communicating with the first medium flow path is provided in the bottom wall of the first groove, and the third groove is configured to accommodate the portion of the sealing member that protrudes toward the first medium flow path relative to the separator. The solenoid valve according to claim 15.

17. The solenoid valve according to any one of claims 14 to 16, wherein the separator comprises a permanent magnet material or a soft magnetic material.

18. The solenoid valve according to any one of claims 14 to 17, wherein at least one through-hole is provided in the separator, and the through-hole is configured to connect the first medium flow path with the second medium flow path.

19. The protrusions are provided on the bottom wall of the first groove or on the surface of the separator facing the bottom wall of the first groove, the separator and the bottom wall of the first groove abut each other via the protrusions, the protrusions and the through holes are arranged alternately, and a gap is formed in the area where the protrusions are not provided between the bottom wall of the first groove and the separator. The solenoid valve according to claim 18.

20. The solenoid valve according to any one of claims 1 to 19, wherein the first containment space is provided around the second medium flow path.

21. The solenoid valve according to any one of claims 1 to 20, wherein the solenoid valve further comprises a dustproof component, the dustproof component being provided in the first medium flow path and / or the second medium flow path of the solenoid valve.

22. The solenoid valve according to any one of claims 1 to 21, further comprising an electrical connector, the electrical connector being provided on the outer wall of the housing, and the electrical connector being electrically connected to the coil via a cable hole provided in the magnetic yoke.

23. The solenoid valve according to any one of claims 1 to 22, wherein the housing is an integral structure and / or the magnetic yoke is an integral structure.

24. The solenoid valve according to any one of claims 1 to 23, wherein the housing is sealed and connected to the magnetic yoke.

25. The solenoid valve according to any one of claims 1 to 24, further comprising a substrate, the substrate being connected to the housing or the magnetic yoke, a third medium flow path being provided on the substrate, and the third medium flow path communicating with the non-outlet flow paths of the first medium flow path and the second medium flow path.

26. The solenoid valve according to any one of claims 1 to 25, wherein the working medium of the solenoid valve is a gas or a liquid.

27. A wearable device comprising an airbag and a solenoid valve according to any one of claims 1 to 26, wherein the airbag is in communication with the solenoid valve, When the airbag inflates, the first media flow path of the solenoid valve is isolated from the second media flow path. When the airbag deflates, the first media flow path of the solenoid valve communicates with the second media flow path. Wearable devices.

28. The wearable device according to claim 27, further comprising a cable tie, wherein the cable tie is configured to fasten the airbag to a part of the user's body.

29. The wearable device according to claim 28, wherein the airbag is housed in the cable tie.

30. The wearable device according to claim 28 or 29, wherein the user's body part includes any of the wrist, arm, and ankle.

31. The wearable device according to any one of claims 27 to 30, wherein the wearable device further comprises an air pump, the air pump configured to inflate the airbag.

32. The wearable device according to any one of claims 27 to 31, further comprising a pressure sensor, wherein the pressure sensor is configured to detect the pressure of the airbag.

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