KR200408235Y1 - Humidity/temperature sensor unit - Google Patents

Abstract

The present invention relates to a temperature / humidity sensor unit installed in a vehicle to prevent the temperature / humidity sensor that detects the internal temperature and humidity from interfering with each other by heat of an internal circuit. And a PCB including a housing, a temperature / humidity sensor and a microcomputer installed in the housing, and a blocking unit to prevent heat generated from the microcomputer from interfering with the humidity sensor.

Vehicle, temperature sensor, humidity sensor, sensor unit, frost

Description

Temperature / Humidity Sensor Unit {HUMIDITY / TEMPERATURE SENSOR UNIT}

1 is a perspective view showing the inside of a vehicle in which the temperature / humidity sensor unit of the present invention is installed.

Figure 2 is a perspective view showing a preferred embodiment of the temperature / humidity sensor unit of the present invention.

Figure 3 is a rear perspective view showing a preferred embodiment of the temperature / humidity sensor unit of the present invention.

4 is an exploded perspective view of FIG. 3;

Figure 5 is a cross-sectional view showing a state in which the temperature / humidity sensor unit of the present invention is installed.

<Description of Symbols for Major Parts of Drawings>

100: sensor unit 1: vehicle

2: glass window 10: housing

11: adhesion part 12: ventilation hole

13: barrier

20: cover 21: display hole

30: PCB 31: temperature sensor

32: humidity sensor 33: microcomputer

34: blocking hole 35: connector

36: indicator lamp 37: light transmitting member

The present invention relates to a temperature / humidity sensor unit, and more particularly, a temperature / humidity sensor installed in a vehicle to detect an internal temperature and humidity, which prevents malfunction due to mutual interference by heat of an internal circuit. It's about the unit.

In general, a car generates frost due to a temperature difference between inside and outside. These castles are mainly generated on the glass surface of the inside and outside of the vehicle. In addition, when driving in a state where the frost is generated in the vehicle, the driver's vision is blocked, which causes a problem in driving and is exposed to a safety accident.

Therefore, in order to remove such frost, the switch of the heating wire installed in the glass is turned on and removed, and the glass of the front and right and left sides is removed by turning on the switch of the separate air conditioning apparatus provided in the vehicle.

In the conventional case, when the frost is generated, there is a need to turn on the heating wire and the air conditioner to remove the frost. Therefore, recently, a temperature / humidity sensor for detecting temperature and humidity is installed to automatically turn on / off a heating wire and an air conditioner.

Such a temperature / humidity sensor has a 2003 Korean patent No. 38534, "Integrated structure of temperature sensor and humidity sensor." According to the conventional patent, a temperature sensor and a humidity sensor are integrated into one printed circuit board (PCB), and a plurality of circuits for controlling the same are integrated into a single PCB.

However, since a temperature sensor, a humidity sensor, and a plurality of circuits are integrally formed on a single PCB, heat generated from the PCB interferes with the temperature sensor and the humidity sensor, and thus there is a problem that the temperature and humidity cannot be detected and malfunction.

Therefore, there is a need for a new temperature / humidity sensor unit that can solve the above problems.

The present invention has been made in consideration of the above-mentioned needs to provide a temperature / humidity sensor unit installed in a vehicle and detecting a temperature / humidity sensor inside to prevent malfunction due to mutual interference by heat of an internal circuit. For that purpose.

Temperature / humidity sensor unit of the present invention for achieving the above object is a housing;

A PCB having a temperature / humidity sensor and a microcomputer installed in the housing;

It characterized in that it comprises a blocking unit for preventing the heat generated from the microcomputer to interfere with the humidity sensor.

Here, the blocking unit is provided with a blocking film formed by protruding the inside of the housing, the blocking film is preferably formed to protrude between the microcomputer and the humidity sensor.

And the PCB is formed with a blocking hole for separating the microcomputer and the humidity sensor,

The blocking hole is preferably inserted into the end of the blocking film.

In addition, the blocking film is formed to protrude in the form of "",

The blocking hole is preferably formed in a "b" shape so that the end of the blocking film can be inserted.

In addition, the housing is formed with a ventilation hole to increase the sensitivity of the humidity sensor,

Preferably, the ventilation holes are formed in three directions at right angles.

In addition, the housing is provided with a cover to protect the internal components, the cover is preferably formed with a display hole so as to check the operating state of the temperature / humidity sensor.

In addition, the PCB is provided with a display lamp for emitting light to display the operating state in the display hole,

Preferably, a light transmitting member for transmitting the light of the display lamp to the display hole is further provided.

In addition, the housing is bonded to the vehicle, it is preferable that the temperature sensor is exposed to be formed so as to detect the temperature of the adhesive surface when the vehicle is caught.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the description of the present invention, terms defined are defined in consideration of functions in the present invention, it should not be understood as a meaning limiting the technical components of the present invention.

1 is a perspective view showing the inside of a vehicle in which the temperature / humidity sensor unit of the present invention is installed. Referring to the drawings, the temperature / humidity sensor unit 100 of the present invention is installed at a position where the temperature difference between the inside and the outside of the vehicle 1 shows the largest difference, and is preferably installed on the glass window 2 having a large temperature difference. It is good. The windshield 2 may be a front windshield and a rear windshield. It may also be a glass window provided in the door.

In the drawings, the sensor unit 100 is illustrated as being installed in the glass window 2, but the present invention is not limited thereto, and may be installed on the vehicle body inside the vehicle 1 and may be installed on the shelf behind the vehicle 1. . Therefore, the position is not limited.

The sensor unit 100 senses temperature or humidity to turn on / off the air conditioner, heating wire, and heating device (not shown) inside the vehicle 1, and to control the strength and weakness in the on state to remove frost formed on the surface. Output the detection signal.

The sensor unit 100 may be fixed by a fastening member or the like, but is fixed by a bonding method in order to be installed on the glass window 2, and is bonded by using a double-sided adhesive sheet or an adhesive in the bonding method.

Figure 2 is a perspective view showing a preferred embodiment of the temperature / humidity sensor unit of the present invention, Figure 3 is a rear perspective view showing a preferred embodiment of the temperature / humidity sensor unit of the present invention.

Referring to the external configuration of the sensor unit 100 with reference to the drawings, the sensor unit 100 is separated into a housing 10 and the cover 20 covering the housing 10 and the front to display the operating state The display hole 21 is formed so that it is possible.

In addition, an adhesive part 11 is formed along an edge of an outer surface of the housing 10 to be attached to the glass window 2, and a temperature sensor 31 is exposed in the center thereof. The temperature sensor 31 is fixed to the center of the outer surface of the housing 10 by the adhesive method.

In addition, the housing 10 forms a ventilation hole 12 so that the air inside is smoothly ventilated, and the ventilation hole 12 communicates with the outside in three directions about a corner point where the corners meet. And the humidity sensor 32 for measuring the humidity of the air to be ventilated is located at the corner of the housing 10 where the ventilation hole 12 is located.

Figure 4 is an exploded perspective view showing the decomposition of the temperature / humidity sensor unit. 5 is a cross-sectional view showing a state in which the temperature / humidity sensor unit of the present invention is installed. Referring to the drawings, the housing 10 is coupled to the cover 20 in the form of fitting. In addition, a temperature sensor 31 and a humidity sensor 32 are installed inside the housing 10, and a microcomputer 33 receiving a detection signal from the temperature sensor 31 and the humidity sensor 32 and outputting a control signal is provided. Is installed. And the microcomputer 33, the temperature sensor 31 and the humidity sensor 32 is configured in one PCB (30).

The PCB 30 is installed at the corner of the PCB 30 to prevent the humidity sensor 32 from interfering with the heat of the circuit installed to configure the microcomputer 33, and the microcomputer 33 through the PCB 30. A blocking hole 34 is formed to prevent heat from being transferred to the humidity sensor 32. Here, the blocking hole 34 is formed in the form of "a" cut.

In addition, in order to prevent the heat of the microcomputer 33 from interfering with the humidity sensor 32 by the flow of the internal air of the sensor unit 100, protrusions are formed at the corners of the housing 10 in the same shape as the blocking hole 34. A blocking film 13 is formed.

Here, the blocking film 13 is assembled in the form of fitting into the blocking hole 34, as shown in Figure 5, the state in which the end of the blocking film 13 is in close proximity or in contact with the inner wall surface of the cover 20 in the assembled state So as to protrude. Therefore, the humidity sensor 32 forms a separate space portion from the microcomputer 33 so that the humidity sensor 32 is not affected by the heat of the microcomputer 33.

PCB 30 is provided with a connector 35 for inputting and outputting the control signal of the microcomputer, by applying the control signal to the vehicle (1) air conditioning device and heating wire and cooling, heating device not shown in the connector 35 It controls air conditioner, heating wire, cold and heating on / off.

In addition, the PCB 30 is provided with a display lamp 36 for displaying the operating state of the sensor unit 100, the light transmitting member 37 for transmitting the light of the display lamp 36 to the outside of the cover 20 More is provided. In this case, the display lamp is an LED (LED) which ensures high brightness and high life, and the light transmitting member 37 is formed of a transparent synthetic resin.

The temperature sensor 31 is exposed to the outside of the housing 10 as shown in FIG. When the sensor unit 100 is attached to the vehicle by adhering to the outer surface, the temperature sensor 31 is brought into contact with the glass window 2 of the vehicle 1.

Hereinafter, the operation of the temperature / humidity sensor unit 100 of the present invention will be described with reference to FIGS. 1 to 5.

First, when power is supplied to the sensor unit 100 by inserting a key of the vehicle 1, the display lamp 36 is turned on to emit light, and the light of the display lamp 36 is transmitted through the light transmitting member 37. An indication of the operation state is made possible in the display hole 21 of the cover.

Then, the temperature sensor 31 detects the surface temperature of the glass window 2 of the vehicle 1 and the humidity sensor 32 detects the humidity of the air passing through the ventilation hole 12. At this time, since the temperature sensor 31 and the humidity sensor 32 are prevented from interfering with the heat of the microcomputer 33, accurate detection is possible.

Thereafter, the temperature sensor 31 and the detection signal detected by the humidity sensor 32 are input to the microcomputer 33, and the microcomputer 33 calculates the dew point by calculating the temperature detection signal and the humidity detection signal. When the dew point rises above the set value, the microcomputer 33 turns on the air conditioner or the cooling / heating device, which is not shown.

In this case, if the rising width is large, the air conditioner or the cooling and heating device, which is not shown, operates at the highest level, and if the rising width is small, the appropriate step is adjusted.

Although the technical idea of the temperature / humidity sensor unit of the present invention has been described together with the accompanying drawings, this is illustrative of the best embodiment of the present invention and is not intended to limit the present invention.

Therefore, it is obvious that anyone with ordinary skill in the art can make various modifications and imitations such as dimensions, shapes, structures, etc. without departing from the scope of the technical idea of the present invention.

As described above, the temperature / humidity sensor unit of the present invention, which has a blocking unit to prevent the temperature sensor and the humidity sensor from being malfunctioned by the heat of the microcomputer, has a temperature / humidity sensor that is caused by the heat of the internal circuit. By preventing mutual interference, it is possible to accurately detect the temperature / humidity sensor and remove frost at the right time.

Claims (8)

housing; A PCB having a temperature / humidity sensor and a microcomputer installed in the housing; Temperature / humidity sensor unit characterized in that it comprises a blocking unit for preventing the heat generated in the microcomputer to interfere with the humidity sensor. The method of claim 1, The blocking unit is provided with a blocking film protruding inside the housing, the blocking film is formed between the microcomputer and the humidity sensor, the temperature / humidity sensor unit. The method of claim 2, The PCB has a blocking hole for separating the microcomputer and the humidity sensor, The blocking hole is a temperature / humidity sensor unit, characterized in that the end of the blocking film is inserted. The method of claim 3, wherein The blocking film is formed to protrude in the form of "", The blocking hole is a temperature / humidity sensor unit, characterized in that formed in the "b" shape so that the end of the blocking film can be inserted. The method of claim 4, wherein The housing is provided with a ventilation hole to increase the sensitivity of the humidity sensor, The ventilation hole is a temperature / humidity sensor unit, characterized in that formed in three directions to be perpendicular. The method of claim 1, The housing is provided with a cover to protect the internal components, the cover is a temperature / humidity sensor unit, characterized in that the display hole is formed so as to check the operating state of the temperature / humidity sensor. The method of claim 6, The PCB is provided with a display lamp for emitting light to display the operating state in the display hole, And a light transmitting member for transmitting the light of the display lamp to the display hole. The method of claim 1, The housing is bonded to the vehicle, the temperature / humidity sensor unit, characterized in that the temperature sensor is exposed so as to detect the temperature of the adhesive surface when caught in the vehicle.

Images