CN209861461U

CN209861461U - Novel infrared inductor

Info

Publication number: CN209861461U
Application number: CN201920544718.5U
Authority: CN
Inventors: 刘艺明
Original assignee: Shenzhen Chenghaotong Electronic Co Ltd
Current assignee: Shenzhen Chenghaotong Electronic Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2019-12-27
Anticipated expiration: 2029-04-19

Abstract

The utility model is suitable for an inductor technical field provides a novel infrared inductor, include: a bottom cover with a circuit board mounted therein; the upper cover is clamped with the opening end of the bottom cover; the annular groove is circumferentially arranged on the inner wall of the bottom cover; a heater installed in the annular groove and with the heating source facing the circuit board; the humidity sensor is arranged on the inner side of the bottom cover or the upper cover, is respectively electrically connected with the circuit board and the heater, and sends a first control signal when sensing that the internal humidity is greater than a first preset threshold value; and the controller is respectively electrically connected with the circuit board, the heater and the humidity sensor and controls the heater to be started when receiving the first control signal. The utility model discloses a heater can control the heater to start when the inside humidity of infrared inductor is greater than the first threshold value of predetermineeing, realizes that self-heating is in order to eliminate the inside steam that gets into infrared inductor, avoids infrared inductor because the influence of steam causes electronic components such as circuit boards in the casing to wet to influence the problem in the life-span of inductor.

Description

Novel infrared inductor

Technical Field

The utility model relates to an inductor technical field especially relates to a novel infrared inductor.

Background

The infrared inductor is an automatic control product based on an infrared technology, comprises an automatic hand dryer, a medical hand washer and the like, and is widely applied to automatic switches in hallways, stairs, elevator rooms, toilets, storehouses and the like of enterprises, hotels, shopping malls and houses. The sensing part of the infrared sensor adopts a sensing device of passive infrared radiation, and a pyroelectric element which is sensitive to infrared radiation with the wavelength of about 10 microns emitted by a human body is used for detecting the moving human body. The Fresnel lens is used in the infrared sensor, so that infrared rays of about 10 micrometers can be converged, light rays with other wavelengths can be filtered, and light ray interference of the environment can be effectively eliminated. When a human body enters the sensing range, the special sensor can detect the change of the infrared spectrum of the human body, the load is automatically switched on, and the human body can be continuously switched on without leaving the sensing range. After the human body leaves, the load is automatically closed after time delay, the functions of 'people going to on and people going to off' are achieved, safety and energy conservation are achieved, and humanized care is displayed.

When the infrared inductor is installed in the environment that needs often contact with water, for example install on the hand washer, perhaps when installing on the wall body of easy moist, it is difficult to avoid having steam to enter into the infrared inductor casing, can cause electronic components such as circuit board in the casing to wet after the steam condenses to influence the life-span of inductor, the existence can improve the part.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel infrared inductor aims at how infrared inductor receives the steam influence to cause electronic components such as circuit board in the casing to wet to influence the problem in the life-span of inductor.

The utility model discloses a realize like this, a novel infrared inductor, include: a bottom cover with a circuit board mounted therein; the upper cover is clamped with the opening end of the bottom cover; the annular groove is circumferentially arranged on the inner wall of the bottom cover; the heater is arranged in the annular groove, and the heating source faces the circuit board; the humidity sensor is arranged on the inner side of the bottom cover or the upper cover, is respectively electrically connected with the circuit board and the heater, and sends a first control signal when sensing that the internal humidity is greater than a first preset threshold value; and the controller is respectively electrically connected with the circuit board, the heater and the humidity sensor and controls the heater to start when receiving the first control signal.

Preferably, the heater adopts a constant temperature heating PTC thermistor.

Preferably, the inner wall of the annular groove is provided with a heat insulation layer.

Preferably, the temperature sensor is electrically connected with the circuit board, the heater and the controller respectively, and sends a second control signal to the controller when sensing that the internal temperature is greater than a second preset threshold value so as to control the heater to stop.

Preferably, a first waterproof layer is coated on the outer surface of the bottom cover, and a second waterproof layer is coated on the outer surface of the upper cover.

Preferably, the first waterproof layer and the second waterproof layer are both made of waterproof cloth, and a connecting piece is arranged between the butt joint of the first waterproof layer and the second waterproof layer to connect the first waterproof layer and the second waterproof layer.

Preferably, the joining piece is a zipper strip arranged between the first waterproof layer and the second waterproof layer.

Preferably, a waterproof gasket is arranged at the clamping position between the upper cover and the bottom cover.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:

the utility model provides a novel infrared inductor passes through the heater circular telegram and produces the heat, can eliminate and get into the inside steam of this novel infrared inductor, avoids infrared inductor because receive the steam influence to cause electronic components such as circuit boards in the casing to wet to influence the problem in the life-span of inductor. Simultaneously, the novel infrared sensor also comprises a humidity sensor and a controller. The humidity sensor can send a first control signal when sensing that the internal humidity is greater than a first preset threshold value, and transmits the first control signal to the controller to control the heater to start, so that automatic heating is realized.

Drawings

Fig. 1 is a schematic structural diagram of a novel infrared sensor provided by the present invention;

fig. 2 is a schematic view of a split structure of the novel infrared sensor provided by the present invention.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiment of the utility model provides a novel infrared inductor, as shown in fig. 1-2, include: a bottom cover 2 with a circuit board 1 mounted therein; the upper cover 3 is clamped with the opening end of the bottom cover 2; an annular groove 4 circumferentially arranged on the inner wall of the bottom cover 2; a heater 5 installed in the annular groove 4 and having a heat generating source facing the circuit board 1; the humidity sensor 6 is arranged on the inner side of the bottom cover 2 or the upper cover 3, is respectively electrically connected with the circuit board 1 and the heater 5, and sends a first control signal when sensing that the internal humidity is greater than a first preset threshold value; and a controller 7 which is respectively electrically connected with the circuit board 1, the heater 5 and the humidity sensor 6 and controls the heater 5 to start when receiving the first control signal.

In this embodiment, the novel infrared sensor includes a bottom cover 2, an upper cover 3, an annular groove 4 and a heater 5. Specifically, the circuit board 1 is mounted inside the bottom cover 2 to realize normal operation of the infrared sensor. The upper cover 3 and the bottom cover 2 are clamped and assembled to realize disassembly, and the circuit board 1 installed in the bottom cover 2 is protected. Ring channel 4 is seted up along the inner wall circumference of bottom 2, and heater 5 is installed in ring channel 4, and heater 5 generates heat the source and sets up towards the direction of circuit board 1, and through 5 circular telegrams of heater and produce the heat, can eliminate the inside steam that gets into this novel infrared inductor, avoid infrared inductor because receive steam influence to cause electronic components such as circuit board 1 in the casing to wet to influence the problem in the life-span of inductor.

Because the heater 5 only needs to be opened when water vapor enters the shell of the infrared sensor, the heater is prevented from being opened for a long time to damage electronic elements such as the circuit board 1 inside the infrared sensor. Therefore, the novel infrared sensor also comprises a humidity sensor 6 and a controller 7. Specifically, the humidity sensor 6 is disposed inside the bottom cover 2 or the upper cover 3 and electrically connected to the circuit board 1 and the heater 5, respectively. The controller 7 is electrically connected with the circuit board 1, the heater 5 and the humidity sensor 6 respectively. The humidity sensor 6 can send a first control signal when sensing that the internal humidity is greater than a first preset threshold (e.g. 70%), and transmit the first control signal to the controller 7 to control the heater 5 to start, so as to realize automatic heating.

In a further preferred embodiment of the present invention, as shown in fig. 1-2, the heater 5 is a constant temperature heating PTC thermistor.

In the present embodiment, the heater 5 employs a constant temperature heating PTC thermistor. The heating PTC thermistor has the constant temperature heating characteristic, and the principle is that after the PTC thermistor is electrified, the resistance value is heated by self-heating to enter a jump region, and the surface temperature of the constant temperature heating PTC thermistor can be kept at a constant value. The heating temperature of the heater 5 can be maintained by adopting the heating PTC thermistor, and the purpose of removing water vapor caused by too high or too low temperature of the heater 5 is prevented.

In a further preferred embodiment of the present invention, as shown in fig. 1-2, the inner wall of the annular groove 4 is provided with a heat insulation layer (not shown).

In this embodiment, through being equipped with the insulating layer (for example thermal insulation materials such as glass fiber, asbestos, rock wool, silicate) at ring channel 4 inner wall, can avoid the heat direct action of heater 5 to lead to ring channel 4 inner wall scaling loss at ring channel 4 inner wall, can prevent heat loss simultaneously, the effect of influence removal steam.

In a further preferred embodiment of the present invention, as shown in fig. 1-2, the present invention further comprises a temperature sensor 8 electrically connected to the circuit board 1, the heater 5 and the controller 7, respectively, and sending a second control signal to the controller 7 to control the heater 5 to stop when sensing that the internal temperature is greater than a second predetermined threshold.

In the present embodiment, in order to prevent heat generated by the heat generator 5 being heated for a long time from remaining after removing moisture, electronic components such as the circuit board 1 are burned. Therefore, the novel infrared sensor further comprises a temperature sensor 8 which is electrically connected with the circuit board 1, the heater 5 and the controller 7 respectively. When the temperature sensor 8 senses that the internal temperature of the novel infrared sensor is greater than a second preset threshold (for example, 50 °), a second control signal is sent to the controller 7 to control the heater 5 to stop heating.

In a further preferred embodiment of the present invention, as shown in fig. 1-2, the outer surface of the bottom cover 2 is covered with a first waterproof layer 9, and the outer surface of the top cover 3 is covered with a second waterproof layer 10.

The first waterproof layer 9 and the second waterproof layer 10 are respectively covered on the outer surface layer of the bottom cover 2 and the outer surface layer of the upper cover 3, so that liquid water can be prevented from entering the infrared inductor to a large extent. In this embodiment, the first waterproof layer 9 and the second waterproof layer 10 are made of waterproof oxford fabric, and in other embodiments, the first waterproof layer 9 and the second waterproof layer 10 may also be made of other materials having waterproof functions, which is not limited herein. And a connecting piece is arranged between the butt joint of the first waterproof layer 9 and the second waterproof layer 10 so as to connect the first waterproof layer 9 and the second waterproof layer 10. The connecting piece is a zipper strip 11 arranged between the first waterproof layer 9 and the second waterproof layer 10. The first waterproof layer 9 and the second waterproof layer 10 can be connected through the zipper strips 11, the first waterproof layer 9 and the second waterproof layer 10 are connected in a seamless mode, and meanwhile the zipper strips 11 are used for facilitating the detachment and installation of the upper cover 3 and the bottom cover 2.

In a further preferred embodiment of the present invention, as shown in fig. 1-2, a waterproof gasket (not shown) is disposed at the joint between the upper cover 3 and the bottom cover 2.

In this embodiment, a waterproof gasket is disposed at the clamping position between the upper cover 3 and the bottom cover 2, so as to further improve the waterproof capability of the novel infrared sensor.

To sum up, the utility model provides a novel infrared inductor, including bottom 2, upper cover 3, ring channel 4 and heater 5. Specifically, the circuit board 1 is mounted inside the bottom cover 2 to realize normal operation of the infrared sensor. The upper cover 3 and the bottom cover 2 are clamped and assembled to realize disassembly, and the circuit board 1 installed in the bottom cover 2 is protected. Ring channel 4 is seted up along the inner wall circumference of bottom 2, and heater 5 is installed in ring channel 4, and heater 5 generates heat the source and sets up towards the direction of circuit board 1, and through 5 circular telegrams of heater and produce the heat, can eliminate the inside steam that gets into this novel infrared inductor, avoid infrared inductor because receive steam influence to cause electronic components such as circuit board 1 in the casing to wet to influence the problem in the life-span of inductor. Because the heater 5 only needs to be opened when water vapor enters the shell of the infrared sensor, the heater is prevented from being opened for a long time to damage electronic elements such as the circuit board 1 inside the infrared sensor. Therefore, the novel infrared sensor also comprises a humidity sensor 6 and a controller 7. Specifically, the humidity sensor 6 is disposed inside the bottom cover 2 or the upper cover 3 and electrically connected to the circuit board 1 and the heater 5, respectively. The controller 7 is electrically connected with the circuit board 1, the heater 5 and the humidity sensor 6 respectively. The humidity sensor 6 can send a first control signal when sensing that the internal humidity is greater than a first preset threshold (e.g. 70%), and transmit the first control signal to the controller 7 to control the heater 5 to start, so as to realize automatic heating.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence, because some steps may be performed in other sequences or simultaneously according to the present invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that acts and modules referred to are not necessarily required by the invention.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or communication connection may be an indirect coupling or communication connection between devices or units through some interfaces, and may be in a telecommunication or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

The above embodiments are only used to illustrate the technical solution of the present invention, and do not limit the protection scope of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from these embodiments without any inventive step, are within the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still make no creative work on the condition of conflict, and make mutual combination, addition and deletion, or other adjustments according to the features in the embodiments of the present invention, thereby obtaining other technical solutions which are different and do not depart from the concept of the present invention, and these technical solutions also belong to the scope to be protected by the present invention.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A novel infrared inductor is characterized by comprising:

a bottom cover with a circuit board mounted therein;

the upper cover is clamped with the opening end of the bottom cover;

the annular groove is circumferentially arranged on the inner wall of the bottom cover;

the heater is arranged in the annular groove, and the heating source faces the circuit board;

the humidity sensor is arranged on the inner side of the bottom cover or the upper cover, is respectively electrically connected with the circuit board and the heater, and sends a first control signal when sensing that the internal humidity is greater than a first preset threshold value; and

and the controller is respectively electrically connected with the circuit board, the heater and the humidity sensor and controls the heater to start when receiving the first control signal.

2. The novel infrared inductor as claimed in claim 1, wherein the heater is a constant temperature heating PTC thermistor.

3. The novel infrared inductor as claimed in claim 1, wherein the inner wall of the annular groove is provided with a heat insulating layer.

4. The novel infrared sensor as claimed in claim 1, further comprising a temperature sensor electrically connected to the circuit board, the heater and the controller, respectively, for sending a second control signal to the controller to control the heater to stop when sensing that the internal temperature is greater than a second predetermined threshold.

5. The novel infrared inductor as claimed in claim 4, wherein the outer surface of the bottom cover is covered with a first waterproof layer, and the outer surface of the top cover is covered with a second waterproof layer.

6. The infrared sensor as claimed in claim 5, wherein the first waterproof layer and the second waterproof layer are made of waterproof cloth, and a connecting member is disposed between the joint of the first waterproof layer and the second waterproof layer to connect the first waterproof layer and the second waterproof layer.

7. The novel infrared inductor as claimed in claim 6, wherein the connecting member is a zipper strip disposed between the first waterproof layer and the second waterproof layer.

8. The novel infrared inductor as claimed in claim 1, wherein a waterproof gasket is provided at the clamping joint between the upper cover and the bottom cover.