TWM500761U - Co-directional sensing type pushbutton - Google Patents

Description

Co-directional sensing button

This creation is related to buttons; in particular, a co-directional sensing button.

According to the public space filled with various kinds of germs, spread through different paths, people press the elevator button to control the lift to take the ride, it is an indirect contact with the infection, while pressing the button that everyone has touched, There is also a hidden crisis of infection.

Therefore, the Continental Patent Publication No. CN201808974U discloses a "light-sensing elevator button auxiliary device". The above patented technology has an elevator button and two protective shields located on both sides of the elevator button and maintained at a certain distance, wherein a protective shield is internally provided with a A light source is emitted, and a light-sensing switch is mounted inside the other protective barrier. When the user's hand is located between the two protective shields, the light transmitted by the light source is blocked, so that the light-sensing switch senses a change in light, and a signal is generated to drive the elevator car to rise and fall. By inductively controlling the elevator, it effectively reduces the chance of people being infected by touching the elevator button and contaminating the bacteria on the elevator button.

However, the second protective shield is to highlight the wall surface of the elevator button. In the public space where the bustle is coming, it is easy to be hit by the impact and the two protective shields are skewed, so that the alignment error of the optical sensor switch and the transmission of the error signal occur. Even in the case of multiple collisions, it is more likely to be damaged and cannot be used; secondly, the second protective shield must be carefully welded or otherwise processed in order to be firmly integrated on both sides of the elevator button. Not only extended The processing time also increases the manufacturing cost.

Therefore, the design of the above-mentioned "light-sensing elevator button assisting device" is still in need of improvement.

In view of this, the purpose of the present invention is to provide a co-directional sensing button, which is a non-contact and in-line button, which can avoid the structural damage caused by collision and improve the service life.

In order to achieve the above object, the same direction sensing button provided by the present invention comprises a body, a light emitter, a light receiver and a circuit board. Wherein the body has a light transmissive area; the light emitter is located in the body, the light emitter sends an infrared light, and the infrared light is emitted to the outside of the body through the light transmissive area; the light receiver is located in the body The optical receiver receives the infrared light reflected by an object and generates a feedback signal; the circuit board includes a signal processing circuit, a timing circuit and a control circuit, wherein the signal processing circuit receives the feedback from the optical receiver The timing circuit starts timing when the signal processing circuit receives the feedback signal; the control circuit outputs a first control signal during the first time period from when the timing circuit starts counting to a first set time.

The effect of this creation is to reduce the probability of collision, and to identify the duration of the feedback signal by the various circuits of the circuit board, and then send a control signal to control the elevator to lift.

100‧‧‧Same direction sensor button

10‧‧‧ Ontology

12‧‧‧ Shell

121‧‧‧Light transmissive area

14‧‧‧ pedestal

16‧‧‧Support board

20‧‧‧ boards

22‧‧‧Signal Processing Circuit

24‧‧‧Timekeeping Circuit

26‧‧‧Control circuit

30‧‧‧Light emitter

32‧‧‧Glossy

40‧‧‧Light Receiver

42‧‧‧Into the glossy surface

50‧‧‧ Tip light

L‧‧‧Infrared

200‧‧‧ fingers

1 is a perspective view of a direct-sensing button of a preferred embodiment of the present invention.

Figure 2 is an exploded view of the above-described preferred embodiment of the same direction sensing button of the present invention.

Figure 3 is a perspective view showing the finger approaching the co-directional sensing button and causing infrared reflection.

Figure 4 is a cross-sectional view showing the light receiver receiving reflected infrared light.

Figure 5 is a schematic diagram showing the various circuit relationships on the board.

In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings. Referring to FIG. 1 to FIG. 4, the same direction sensing button 100 is a preferred embodiment. The utility model comprises a body 10, a circuit board 20, a light emitter 30, a light receiver 40 and a prompt light 50. In the present embodiment, the body 10 is embedded in a control panel of an elevator (not shown).

The body 10 has a housing 12, a base 14 and a support plate 16. The outer casing 12 is coupled to the base 14 , and the support plate 16 is disposed in the accommodating space of the outer casing 12 and the base 14 . The central portion of the outer casing 12 is provided with a light transmissive area 121, which may be formed by a hollow structure or a transparent plastic plate. In this embodiment, the light transmissive area 121 is a transparent plastic plate coupled to the outer casing 12, and may be provided with symbols including but not limited to English letters, numbers or patterns for representing the elevator controlled by the button. Whether the car arrives at the destination floor or the elevator door is opened or closed.

The circuit board 20 is disposed on the support board 16 and electrically connected to the light emitter 30 and the light receiver 40. The light emitter 30 is disposed adjacent to the light receiver 40. The light emitter 30 has a light exiting surface 32. The light emitting surface 40 has a light incident surface 42. The light emitting surface 32 and the light incident surface 42 face the light transmissive area 121. The light emitter 30 is configured to transmit an infrared ray L that passes through the permeable region 121 of the outer casing 12 and is emitted to the outside of the body 10 as an object (in this embodiment, the user's finger 200 is an example) when it is close to but not in contact with the surface of the outer casing 12, that is, it is close to the light emitter 30, and the blocked infrared light L will be reflected and received by the light receiver 40, at which time the light receiver 40 will be To send a feedback signal. In order to ensure the optimal timing of the feedback signal, and to avoid improperly controlling the object that is too far away, the light emitter 30 selected in this embodiment has a certain range limitation. In general, a distance of about 5 mm from the surface of the article 12 is a preferred sensing range.

Referring to FIG. 5, the circuit board 20 includes a signal processing circuit 22, a timing circuit 24 and a control circuit 26. The signal processing circuit 22 is configured to receive the feedback signal sent by the optical receiver 40. When the signal processing circuit 22 receives the feedback signal, the timing circuit 24 simultaneously starts the timing function to record the feedback signal. The control circuit 26 sends a control signal in time to control the elevator car lift or the elevator door opening and closing according to the length of time calculated by the timer circuit 24. That is, the control circuit 26 generates different control commands to operate the elevator due to the length of time that the object (the user's finger 200) enters the sensing range of the infrared ray L.

In this embodiment, the control circuit 26 outputs a first control signal for controlling the elevation of the elevator car during the first time period from the start of the timing circuit 24 to a first set time. Or the opening and closing of the elevator door, the actual function depends on the design. The foregoing first time period is exemplified by 2 seconds in this embodiment. In other words, the first control signal can be effectively generated as long as the object enters the sensing range and is less than or equal to 2 seconds. Moreover, the control circuit 26 does not output a signal between the first set time point (ie, the second second) and the second set time point during the timing of the timer circuit 24; the control circuit 26 is in the After the timing circuit 24 counts beyond the second set time, a second control signal is output. The second set The timing is based on the third second. In other words, when the user decides to cancel the previous control command (ie, the first control signal), the purpose can be achieved by increasing the sensing time (ie, more than 3 seconds). As for the design of the signal output between the first set time point and the second set time point on the time axis, the purpose is to appropriately separate the timing of the generation of the first control signal and the second control signal. Moreover, the first set time point and the second set time point are adjusted according to actual use situations.

The indicator light 50 is electrically connected to the circuit board 20, and generates a light or a light according to the first control signal or the second control signal sent by the control circuit 26. In this embodiment, when the time when the finger 200 stays in the sensing range is less than or equal to 2 seconds, and the control circuit 26 outputs the first control signal, the prompt light 50 lights up accordingly, and the light is turned on. The light is exposed through the permeable area 121 so that the user knows that the sensing has succeeded. However, when the user wants to cancel the previous control command (ie, the first control signal), the finger 200 only needs to stay in the sensing range again, and the extended stay time exceeds 3 seconds, so that the control circuit 26 can cancel the control. The second control signal of the previous control command, at this time, the indicator light 50 will be extinguished from the light-emitting state along with the output of the second control signal, and the user can know that the previous control command is successfully cancelled.

In summary, the same direction sensing button 100 of the present embodiment has the advantages and effects listed below:

1. Compared with the conventional light-sensing elevator button, the same-direction sensing button 100 is a button with an embedded structure, which can avoid structural damage caused by collision, thereby improving the service life.

2. The same direction sensing button 100 can change the pattern of the light transmissive area 121 according to actual needs, and the same direction sensing button 100 can be applied in a plurality of ways. The user can also determine whether the light transmissive area 121 is transparent to the light source, and whether the same direction sensing button 100 is known. Has been sensed or cancelled.

3. The user can cancel the previous control command according to the actual use situation, avoiding the elevator car staying on the unmanned floor and extending the passenger's boarding time.

The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present application and the scope of the patent application are intended to be included in the scope of the present patent.

100‧‧‧Same direction sensor button

12‧‧‧ Shell

121‧‧‧Light transmissive area

14‧‧‧ pedestal

L‧‧‧Infrared

200‧‧‧ fingers

Claims (5)

A co-directional sensing button comprises a body having a light transmissive area; a light emitter located in the body, the light emitter transmitting an infrared light, the infrared light being emitted to the body through the light transmissive area An optical receiver is disposed in the body, the optical receiver receives the infrared light reflected by an object, and generates a feedback signal; a circuit board includes a signal processing circuit, a timing circuit and a control circuit, The signal processing circuit receives the feedback signal of the optical receiver; the timing circuit starts counting when the signal processing circuit receives the feedback signal; and the first time period of the control circuit begins when the timing circuit starts to count to a first set time A first control signal will be output. The same direction sensing button as claimed in claim 1, wherein the control circuit does not output a signal when the timing of the timing circuit exceeds the first set time point to a second set time point; when the timing circuit After the timing process exceeds the second set time point, a second control signal is output. The same direction sensing button as claimed in claim 1, wherein the body has a casing, a base and a supporting plate, the casing has the light transmissive area and is coupled to the base, wherein the supporting plate is located The circuit board is disposed between the outer casing and the base plate, and the circuit board is provided with the light emitter and the light receiver, and the light emitter is disposed adjacent to the light receiver, wherein the light emitter is disposed adjacent to the light receiver The light emitter has a light emitting surface, and the light receiver has a light incident surface, and the light emitting surface and the light incident surface face the light transmissive area. The same direction sensing button as claimed in claim 1, comprising a prompt light disposed inside the body, the prompt light is electrically connected to the circuit board, and is lit up as the control circuit outputs the first control signal The light that is illuminated is exposed through the permeable area. The in-sense sensing button of claim 3, wherein the distance between the object and the surface of the outer casing is less than about 5 mm, the infrared light is preferably inductive to the light emitter.