TWI553684B - Multi - layer angle tilt switch - Google Patents

Description

Multi-layer angle tilt switch

The present invention relates to a tilt switch, and more particularly to a multi-layer angle tilt switch that uses a change in angle to form a path or an open circuit.

Referring to FIG. 1 , the general tilt switch 1 is used as an example, and mainly includes a housing 11 , a light emitter 12 and a light receiver 13 , which are oppositely mounted in the housing 11 , and a ball 14 . The housing 11 has a ring-shaped conical surface 111 that surrounds an axis X and defines an alcove 110, and two holes 112 that extend through the opposite positions of the annular conical surface 111 in an optical axis L direction perpendicular to the axis X. The light emitter 12 emits a light beam toward the light receiver 13 through the holes 112 in the direction of the optical axis L. The ball 14 is housed in the recess 110. The annular cone surface 111 is preset to have an included angle θ of 90 degrees.

In the normal state, the ball 14 is trapped in the recess 110, and is located at a position blocking the optical axis L, so that the light beam is blocked by the ball 14 to form an open circuit and is in an "OFF" state, when the housing 11 is subjected to an external force. When tilting, the ball 14 will roll along the annular cone surface 111 to a position away from the optical axis L when the housing 11 is inclined at an angle of the inclined surface angle α, so that the light beam passes through the recess 110 to form a conduction loop. The "ON" state, thereby achieving the effect of the "ON/OFF" switch control.

Since the aforementioned angle θ and the slope angle α relate to the angle at which the tilt switch 1 is tilted to control the electrical appliance to generate an action such as power-off, generally, for safety reasons, a too large angle is not preset. However, in practice, it will be found that when the angle θ ≦ 90 degrees, the ball 14 will often Because it is in ring contact with the annular cone surface 111, and is clamped by the annular cone surface 111, it is blocked between the angles θ of the annular cone surface 111, so that the ball 14 cannot be separated from the optical axis L, and cannot be "ON/ The effect of the "OFF" switch control is that the action is not sensitive or even fails.

Accordingly, it is an object of the present invention to provide a multi-layer angle tilt switch capable of improving the sensitivity and smoothness of an action.

Thus, the multi-layer angle tilt switch of the present invention comprises a housing, a photoelectric group, and a rolling element. The housing has a first annular surface and a second annular surface surrounding an axis and defining a cavity, the first annular surface being adjacent to one end of the cavity and having an tangential angle through the axis greater than 90 degrees, the second The angle of the tangent passing through the axis of the torus is less than or equal to 90 degrees. The photoelectric group has a light emitter and a light receiver disposed opposite to the two sides of the cavity, so that the optical signal passes through the cavity along an optical axis. The rolling element is received in the cavity and follows the first toroid and the second toroid to roll between a disconnected position blocking the optical axis and a passage away from the optical axis.

The invention has the advantages that the angle of the first torus is wider, so that the rolling element can be prevented from being jammed when the housing is tilted, and the angle of the second torus can be converged. The rolling element can be smoothly separated from the optical axis according to the preset tilt angle, thereby improving the sensitivity and smoothness of the action.

The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments The presentation of Chu.

Referring to Figures 2 and 3, a first preferred embodiment of the multilayer angle tilt switch of the present invention comprises a housing 2, a photovoltaic module 3, and a rolling element 4.

The housing 2 has a housing 21 and a cover 22 that are opposite each other. The housing 21 has a first annular surface 211, a second annular surface 212 and a third annular surface 213 surrounding an axis X and defining a cavity 210, and an optical axis L direction perpendicular to the axis X. Through the two holes 214. The first annular surface 211 is adjacent to one end of the cavity 210. In the preferred embodiment, the first annular surface 211 is a ring-shaped tapered surface, and the tangential angle of the axis X is the first angle θ1, which is greater than 90 degrees. . In the preferred embodiment, the second annular surface 212 is a ring-shaped tapered surface whose tangential angle through the axis X, that is, the second angle θ2 is less than or equal to 90 degrees. Preferably, the first angle θ1 is greater than 90 degrees and less than or equal to 180 degrees, and the second angle θ2 is between 20 and 90 degrees.

The photovoltaic group 3 is encapsulated between the housing 21 and the cover 22 and has a light emitter 31 and a light receiver 32. The light emitter 31 and the light receiver 32 respectively have a body 311, 321 disposed on opposite sides of the cavity 210, a pair of terminals 312, 322 passing through the housing 2, and formed on an end surface and opposite A light acting portion 313, 323 of the tunnel 214. Thereby, the optical signal is passed through the cavity 210 in the direction of the optical axis L.

The rolling element 4 is received in the cavity 210 and follows the first and second toroids 211, 212 to roll between a disconnected position blocking the optical axis L and a path away from the optical axis L.

In the normal state, the rolling element 4 will fall between the first annular faces 211 of the cavity 210, and is located at the breaking position of the blocking optical axis L, so that the light beam is blocked. The rolling element 4 is in an "OFF" state by forming an open circuit.

Referring to FIG. 4, FIG. 5, FIG. 6 and FIG. 3, when the housing 2 is inclined by an external force to the angle slanting surface angle β1, the rolling element 4 first follows the first annular surface 211 to the cavity. 210 is on one side and still maintains the position of the blocking beam (Fig. 4), and then, as the housing 2 continues to tilt to the angular bevel angle β2, the second toroid 212 is swept to the position away from the optical axis L. Position (Fig. 5), finally, rolling and stabilizing the third toroidal surface 213 (Fig. 6), causing the light beam to form an ON circuit through the cavity 210 to be in an "ON" state, thereby achieving an "ON/OFF" switch The effect of the control.

Referring to FIG. 2, FIG. 3, and FIG. 4, it is worth mentioning that, since the first angle θ1 is greater than 90 degrees and less than 180 degrees, the rolling element 4 that is trapped in the cavity 210 is in a normal state. The first toroidal surface 211 is not in contact with the first toroidal surface 211, and at most, the first toroidal surface 211 is in contact with the first toroidal surface 211, thereby effectively preventing the first toroidal surface 211 from clamping the rolling element 4. Without jamming.

Referring to FIG. 7, FIG. 8, and FIG. 9, a second preferred embodiment of the present invention is substantially the same as the first preferred embodiment, and the difference lies in: The housing 2 further has an inner casing 23 received between the housing 21 and the housing cover 22. The inner casing 23 has a first annular surface 231 and a second annular surface 232 surrounding an axis X and defining a cavity 230, and an opening 233 and a tunnel 234 formed on the two sides along the X-direction of the axis. The first toroidal surface 231 also has a first included angle θ1 greater than 90 degrees. The second annular surface 232 also has a second included angle θ2 of less than or equal to 90 degrees.

The light emitter 31 of the photovoltaic group 3 and the light receiver 32 are taken as the axis X For the optical axis, the optical signal passes through the cavity 230 along the axis X direction.

In the normal state, the rolling element 4 will also fall between the first toroidal faces 231 of the cavity 230, at the breaking position of the blocking axis X, so that the light beam is blocked by the rolling element 4 to form an open circuit and is in an "OFF" state.

When the housing 2 is tilted by an external force, the rolling element 4 will first roll along the first annular surface 231 to the side of the recess 230, and then follow the second as the housing 2 continues to tilt. The toroidal surface 232 is rolled to a position away from the optical axis L, causing the light beam to form an ON circuit through the cavity 230 to be in an "ON" state, thereby achieving the effect of the "ON/OFF" switch control.

Referring to FIG. 10, a third preferred embodiment of the present invention is substantially the same as the first preferred embodiment, and the difference lies in: The first annular surface 211 is a concave curved surface whose tangential angle through the axis X is the first angle θ1, which is also greater than 90 degrees.

Thereby, in the normal state, the rolling elements 4 that are trapped in the cavity 210 are also not in ring contact with the first toroidal surface 211, and at most, only one side is in contact with the first toroidal surface 211. Thereby, the situation in which the first toroidal surface 211 grips the rolling element 4 can be effectively avoided without jamming.

It can be seen from the above that the multi-layer angle tilt switch of the present invention has the following advantages and effects: the present invention enables the rolling element 4 to be in the housing 2 with the first angle θ1 of the first toroidal surface 211, 231 being wider. When tilted, the phenomenon of jamming does not occur, and the rolling element 4 can be smoothly separated from the light according to the preset tilt angle with the second angle θ2 of the second loop surface 212, 232 being converged. The axis L, in turn, enhances the sensitivity and smoothness of the action.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

2‧‧‧Shell

21‧‧‧Shell

210‧‧‧ cavity

211‧‧‧ first torus

212‧‧‧second torus

213‧‧‧ third torus

214‧‧‧ Holes

22‧‧‧Shell cover

23‧‧‧ inner shell

230‧‧‧ cavity

231‧‧‧ first torus

232‧‧‧second torus

233‧‧‧ openings

234‧‧‧ Holes

3‧‧‧Photoelectric group

31‧‧‧Light emitter

311‧‧‧ Ontology

312‧‧‧ Terminal

313‧‧‧Light Action Department

32‧‧‧Optical Receiver

321‧‧‧ body

322‧‧‧terminal

323‧‧‧Light Action Department

X‧‧‧ axis

L‧‧‧ optical axis

Θ1‧‧‧ first angle

Θ2‧‧‧second angle

11‧‧‧bevel angle

22‧‧‧bevel angle

1 is a cross-sectional view showing a general tilt switch; FIG. 2 is a cross-sectional view showing a first preferred embodiment of a multi-layer angle tilt switch of the present invention; and FIG. 3 is a housing of the first preferred embodiment. FIG. 4 is a cross-sectional view showing a rolling element in accordance with a first toroidal rolling in the first preferred embodiment; FIG. 5 is a cross-sectional view showing the rolling element in the first preferred embodiment. FIG. 6 is a cross-sectional view showing the rolling element stabilized in a ring surface in the first preferred embodiment; FIG. 7 is a cross-sectional view showing a second preferred embodiment of the multi-layer angle tilt switch of the present invention. 8 is a cross-sectional view showing a rolling element in accordance with a first toroidal rolling in the second preferred embodiment; FIG. 9 is a cross-sectional view showing the rolling element in the second preferred embodiment. Bi-ring rolling; and Figure 10 is a cross-sectional view showing a third preferred embodiment of a multi-layer angle tilt switch of the present invention.

21‧‧‧Shell

210‧‧‧ cavity

211‧‧‧ first torus

212‧‧‧second torus

213‧‧‧ third torus

214‧‧‧ Holes

Θ1‧‧‧ first angle

Θ2‧‧‧second angle

11‧‧‧bevel angle

22‧‧‧bevel angle

Claims (6)

A multi-layer angle tilt switch comprising: a housing having a first annular surface and a second annular surface surrounding an axis and defining a cavity, the first annular surface being a ring tapered surface adjacent to the cavity bottom End, and the tangential angle through the axis is greater than 90 degrees and less than or equal to 180 degrees, the second annular surface is a ring tapered surface connecting the first annular surface away from one end of the bottom end of the cavity, and the tangential angle boundary of the axis At 20 to 90 degrees; a photovoltaic group having a light emitter and an optical receiver disposed opposite the two sides of the cavity, the optical signal passing through the cavity along an optical axis; and a rolling element housed in The cavity is trapped between the first toroidal surface and located at a disconnection position blocking the optical axis, and follows the first toroidal surface and the second toroidal surface at the disconnected position as the housing 2 is tilted Rolling away from a path of the optical axis and rolling to the path position by the second toroidal guide. The multilayer angle tilt switch of claim 1, wherein the optical axis is perpendicular to the axis. The multi-layer angle tilt switch of claim 1, wherein the housing further has a third annular surface adjacent the top end of the cavity and surrounding the axis. The multi-layer angle tilt switch according to claim 3, wherein the housing has a housing and a cover that are opposite to each other and mount the photoelectric group, the first toroid, the second torus, A third toroid and the cavity are formed in the housing. The multi-layer angle tilt switch of claim 1, wherein the optical axis coincides with the axis. The multi-layer angle tilt switch according to claim 5, wherein the housing has a housing and a cover that are opposite to each other and mount the photoelectric group, and are housed in the housing and the cover An inner casing of the first toroid, the second toroid and the cavity is formed.