KR20030029192A - Apparatus for temperature controlling of near infrared ray heater - Google Patents

Abstract

The present invention relates to a temperature control apparatus for a near-infrared heater to automatically perform proper heating according to the presence or absence of a user and the temperature around the user.

According to the present invention, the user's convenience can be further increased by sensing the ambient temperature of the user and automatically adjusting the heating value of the heater according to a preset temperature.

In addition, by minimizing power waste by automatically controlling the heater on / off by detecting the presence of the user, it is possible to prevent overheating of the heater by automatically turning off the heater when the user is not detected for a predetermined time.

Description

A near-infrared heater temperature controller {APPARATUS FOR TEMPERATURE CONTROLLING OF NEAR INFRARED RAY HEATER}

The present invention relates to a temperature control apparatus for a near infrared heater, and more particularly, to a temperature control apparatus for a near infrared heater to automatically perform appropriate heating according to the presence or absence of a user and the temperature around the user.

In general, near-infrared radiation occurs when the temperature of the heating element is 1800 ° C to 2000 ° C. This near-infrared ray is characterized by heat being transmitted only to an object as a wavelength without heating the air. The heater using the near infrared has advantages such as high energy efficiency and no need for ventilation compared to the conventional heating method for heating air.

Accordingly, near-infrared heaters can be installed in high ceilings, factories, logistics warehouses, or indoor spaces that require frequent ventilation, and can be used even in windy or rainy conditions, such as gardens, outdoor buffets, entrance halls, and other sports facilities. It can be installed and can be efficiently heated with low energy cost.

The conventional near-infrared heater is installed in a plurality of heating elements in parallel and adjusted the amount of heat by controlling the heating element selectively on / off when the heating amount is adjusted. In addition, when the space to be heated is narrow, a near-infrared heater having one heating element is installed to control the amount of heat generated by controlling on / off power applied to the heating element.

However, since the near-infrared heater transmits heat to the wavelength without heating the air, the heating effect is rapidly reduced when the power is cut off instead of enabling rapid heating. Accordingly, the conventional near-infrared heater has been inconvenient, such as the user has to frequently turn on / off the heater in order to maintain proper heating.

In addition, the conventional near-infrared heater maintains the ON (ON) or OFF (OFF) state of the set regardless of the presence or absence of the user by controlling the heater on or off every time when the user leaves or returns to the seat In case of leaving the seat for a long time, there was a problem such as excessive waste of electrical energy.

The present invention has been made to solve the above-mentioned problem, the object of the present invention is to detect the ambient temperature of the user by automatically adjusting the heating value of the heater according to the preset temperature by further increasing the user's convenience temperature control apparatus To provide.

It is another object of the present invention to minimize the waste of power by automatically controlling the heater on / off by detecting the presence of the user and to prevent overheating of the heater by automatically turning off the heater when the user is not detected for a predetermined time. It is to provide a temperature control device of a near infrared heater.

1 is a perspective view showing the appearance of a near infrared heater according to the present invention,

2 is a perspective view showing the appearance of a temperature controlled transmitter according to the present invention;

3 is a control block diagram of a heater and a temperature control transmitter according to the present invention;

4 is a control flowchart of a temperature controlled transmitter according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: body 2: heating element

3: reflector 4: protection net

5: transceiver

The present invention, in order to achieve the above technical problem, a heater driver for controlling the heat generation of the heating element, a transceiver for receiving a command for remote control of the heater driver, and by controlling the heater driver in accordance with the command received through the transceiver A heater control unit which controls a heat generation amount of the heating element; Heating element by comparing the key input unit for receiving the desired temperature according to the heating from the user, the temperature sensing unit for detecting the current temperature around the user, the desired temperature input through the key input unit and the present temperature detected through the temperature sensing unit A microcomputer for outputting a command for controlling the amount of heat generated, and a transmitting and receiving unit for transmitting the command output by the microcomputer to recognize the heater control unit through the transceiver.

In addition, the temperature control transmitter and the user presence detection unit for detecting the presence of the user in the heating space, the standby time input key for inputting the standby time for turning off the heating element if the user is not detected through the user presence detector; If the user is not detected through the waiting time inputted through the standby time input key and the presence / absence detection unit, the time is counted. It includes more.

In addition, the temperature control transmitter detects a predetermined time elapses or through the temperature sensing unit when the heating element is turned off because the counted time elapses after the standby time input through the standby time input key when the user is not detected through the user presence detecting unit. The microcomputer further outputs a command to turn on the heating element again when the present current temperature is lower than or equal to the predetermined temperature.

In addition, the temperature-controlled transmitter counts the time when the user is not detected through the user presence detection unit, and resets the counted time when the user is detected again through the user presence detection unit within the waiting time input through the standby time input key. The microcomputer further includes.

The apparatus may further include a microcomputer for outputting a command for lowering the amount of heat generated by the heating element when the present temperature is higher than the desired temperature by comparing the present temperature detected by the temperature sensing unit with a desired temperature set by the key input unit.

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

1 is a perspective view showing the appearance of a near-infrared heater according to the present invention (hereinafter referred to as a "heater"), the main body 1 is provided with a receiving space for accommodating the heating element 2 therein, and in the main body 1 A protective net 4 on the front of the main body 1 so as to protect the heating element 2 from the outside, and a reflecting plate 3 provided at the rear of the heating element 2 so as to radiate the near infrared rays generated from the received heating element 2 to the front. ) Is provided.

In addition, a transceiver 5 is provided on one side of the front surface of the main body 1 so as to transmit and receive data with the temperature controlled transmitter 100 to be described later.

2 is a temperature-controlled transmitter 100 of a near-infrared heater according to the present invention, which receives a desired temperature according to heating from a user or a key for receiving a waiting time for turning off the heater when the user is not detected for a predetermined time (11). 12, a function switching key 13 for switching the keys 11 and 12 into a desired temperature setting key or a waiting time input key so that the user can input a desired temperature or waiting time, and a desired temperature input by the user. The display unit 21, 22 for displaying the current temperature around the user, the transceiver 70 provided to transmit and receive data with the transceiver 5 provided in the heater body, and the user's presence to detect the presence of the user The non-sensing unit 50 and a temperature sensing unit (not shown) for sensing a current temperature around the user due to heating are provided.

3 is a control block diagram of a heater and a temperature controlled transmitter disclosed in FIGS. 1 and 2.

First, the heater according to the present invention is a heating element (2) for radiating near-infrared by receiving power, and a heater driver (8) for controlling the power amount applied to the heating element (2) to adjust or turn on / off the amount of heat, The heater controller 6 for controlling the heater driver 8 and other controllers in accordance with a pre-programmed control sequence, and inputs data transmitted from the temperature control transmitter 100 to the heater controller 6 or the heater controller 6 And a power supply unit 7 for supplying power to the heat generator 2 and a transceiver 5 for transmitting a control signal of the control unit to the temperature controlled transmitter 100.

Here, the heating element 2 is for radiating near infrared rays by receiving power from the power supply unit 7 by the heater driving unit 8, one end of which is connected to the heater driving unit 8 connected to the power supply unit 7, and the other end is grounded. do.

The heater driving unit 8 is composed of a semiconductor switching element, that is, an N-type MOSFET, and is electrically connected between the power supply 12 and the heat generator 2. The heater driver 13 is connected to the heater controller 6 through a photo coupler (not shown) to maintain an electrically insulated state. Accordingly, the input signal of the heater control unit 6 is applied to the heater driver 8 via a photo coupler, and the input signal is applied to the gate of the MOSFET as a driving voltage for the heater driver 8. As a result, the heater driving unit 8 may adjust the amount of heat generated by the heating element 2 in multiple stages based on the programmed switching signal of the heater control unit 6.

The heater controller 6 controls the heater driver 8 according to the command output from the temperature controlled transmitter 100 to multi-stage control the amount of heat generated by the heating element 2 or to control the heater on / off. In addition, the heater controller 6 exchanges data with the transceiver 71 of the temperature controlled transceiver 100 at the time of initial driving and performs an error check.

The transceiver 5 includes a receiver 5-1 for receiving data transmitted from the temperature controlled transmitter 100, and a transmitter 5-2 for transmitting data for error checking during initial driving. The receiver 5-1 is composed of, for example, an IR module, and detects light output from the temperature controlled transmitter 100 through a photo TR (not shown), and is suitable for the heater controller 6 to analyze the detected signal. Convert it to a signal and output it. In addition, the transmitter 5-2 is composed of an infrared LED (not shown) or the like for transmitting a signal according to the command of the heater control unit 6 to light. Here, the transmitter 5-1 and the receiver 5-2 can also be replaced by an RF transceiver.

On the other hand, the temperature control transmitter 100 receives the desired temperature according to the heating from the user or if the user does not sense for a predetermined time the key (11, 12) and the key (11, 12) for receiving the waiting time for turning off the heater ) Is a key input unit 10 including a function switching key 13 for switching a desired temperature setting key or a standby time input key, a desired temperature setting display unit 21 for displaying a desired temperature input by a user, and temperature sensing. A display unit 20 including a current temperature display unit 22 for displaying a current temperature around the user detected by the unit 30, a user presence detecting unit 50 for detecting the presence or absence of a user in a heating space, Pre-set through the temperature sensor 30 for detecting the temperature around the user according to the heating, the memory 60 for storing the various data such as the desired temperature and the standby time set by the user, and the heater controller 6 Hee The microcomputer 40 for controlling the heating value of the heating element 2 by the temperature, turning the heater on / off according to the user's detection or not, or remotely controlling the heater according to other pre-programmed control procedures, and the command of the microcomputer 40 It includes a transmitting and receiving unit 70 for transmitting to the heater or to receive the signal transmitted from the heater to the microcomputer 40.

Here, the key input unit 10 may input the user's desired temperature or waiting time through the function switching key 13. That is, in the initial state of the function switching key 13, keys 11 and 12 are the desired temperature setting keys, and when pressed, are switched to the waiting time input keys. For example, assuming that the desired temperature is set to 25 ° C., the user can operate the keys 11 (up) and 12 (down) to increase or decrease the desired temperature. In addition, assuming that the waiting time is set to 5 minutes, the user can operate the function switching key 13 to switch the keys 11 and 12 to the waiting time input keys, and then operate the keys 11 and 12 to increase or decrease the waiting time. .

The display unit 20 displays the desired temperature set by the user when the keys 11 and 12 are used as the desired temperature setting keys and the current temperature around the user sensed through the temperature sensing unit, respectively, and when the keys 11 and 12 are used as the function switching keys, Display the time. Therefore, it is possible to check the currently set waiting time by operating the function switching key 13.

The user presence detection unit 50 is for detecting the presence or absence of a user in a heating space, and may include, for example, an infrared sensor for detecting a human body. When the ferroelectric sensor receives a small amount of infrared light generated by the human body, the ferroelectric absorbs its thermal energy to cause a change in spontaneous polarization, and the charge is induced in proportion to the amount of change.

The temperature sensing unit 30 is for detecting a temperature around the user according to heating, and is installed so that heat is not directly transmitted from the heating element. For example, it is installed in the temperature controlled transmitter to sense heat transferred indirectly, or by detecting the air temperature in the temperature controlled transmitter to detect the temperature around the user according to the heating.

The memory 60 includes a ROM (not shown) in which the control order of the microcomputer 40 is stored, and a RAM (not shown) for storing a desired temperature or waiting time input through the key input unit 10, and the like. If the heater is turned off after a lapse of time, the microcomputer 40 reads the stored desired temperature or waiting time from the RAM and operates the heater again. To this end, the memory 60 is supplied with power to continuously maintain the information stored in the RAM. However, when using a nonvolatile memory device that does not disappear even if the power is cut off, it is natural that a separate power supply is unnecessary.

The microcomputer 40 switches the functions 11 and 12 to the desired temperature setting key or the standby time input key according to the operation of the function switching key, and stores the desired temperature or standby time input through the key input unit in the memory, Compares the user's desired temperature and the current temperature detected through the temperature sensor, and outputs a command to control the heating value of the heater through the transmitter, and counts the time when the user is not detected from the user presence sensor. When the waiting time stored in the elapsed time, a command to turn off the heater is output through the transmitter.If the user is detected again within the waiting time, the counted time is reset. The heater is remotely controlled in the control sequence programmed in the memory.

The transmitter / receiver 70 includes a receiver 71 for transmitting data for error checking during initial driving, and a transmitter 72 for transmitting data for remote control of the heater. The receiver 71 is configured as an IR module, for example, and detects light output from the transmitter 5-2 of the heater through a photo TR (not shown), and an appropriate signal to allow the microcomputer 40 to analyze the detected signal. Convert to and print it out. In addition, the transmission unit 72 is composed of an infrared LED (not shown) or the like for transmitting a signal according to the command of the microcomputer 40 as light. Here, the transmitting unit 72 and the receiving unit 71 may be replaced by an RF transmitter and receiver.

The following describes the operating state of the heater and the temperature controlled transmitter according to the present invention with reference to the above-described components and FIG.

First, when the user uses a heater to heat the power is applied to operate the power switch (not shown) of the temperature-controlled transmitter (100).

When power is applied to the temperature controlled transmitter 100, the microcomputer 40 and the heater controller 6 transmit data to each other to perform initialization and error checking.

Subsequently, the microcomputer 40 determines whether power is applied (S11), and if it is determined that power is applied, detects the presence or absence of the user through the user presence detecting unit 50 (S12).

If it is determined that the user exists in the heating space (S13), the microcomputer 40 resets the counted waiting time (S14). It is natural that there is no counted waiting time since this is the first operation.

If it is determined that the user does not exist in the heating space (S13), the process proceeds to step S131.

Thereafter, the microcomputer 40 reads the information from the memory 60 and determines whether there is previously stored information (S15). Since it is the first operation here, it is natural that there is no previously stored information. However, if the basic information is programmed before the product is shipped, the basic information may be used as pre-stored information. In this case, even if the user does not input the heating desired temperature and standby time separately, the heater will perform heating based on the pre-programmed reference information.

If there is no information previously stored in the memory 60, the microcomputer 40 maintains an input standby state (S151).

Subsequently, when the user operates the key input unit 10 to input the heating desired temperature and the waiting time, the microcomputer 40 stores the input information in the memory 60 and ends one cycle. Thereafter, after performing the above-described S11-S14, it is again determined whether there is previously stored information (S15).

If it is determined by the user that the desired temperature and waiting time are not input (S152), the microcomputer 40 maintains the input standby state (S151).

When it is determined that there is previously stored information (S15), the microcomputer 40 transmits the heater driving signal through the transmitter 72 based on the previously stored information (desired temperature) (S16). In addition, the microcomputer 40 displays a desired temperature through the display unit 20.

Thereafter, the microcomputer 40 reads the current temperature through the temperature sensing unit 30 (S17). In addition, the microcomputer 40 displays the current temperature through the display unit 20.

Subsequently, the microcomputer 40 compares the current temperature read through the temperature sensing unit 30 with a desired preset temperature previously stored in the memory (S18).

If the current temperature according to the heating is equal to or higher than the desired temperature, the microcomputer 40 determines whether the heating intensity is the lowest stage (S19).

If it is determined that it is not the lowest stage, the microcomputer 40 transmits a heater driving signal for setting the heating intensity to the lower stage such that the current temperature is lower than the desired temperature to the heater side through the transmitter 72 (S20). Accordingly, the heater performs heating to a temperature close to the current temperature.

If it is determined that the intensity of heating is at the lowest level (S19), the microcomputer 40 transmits a signal for turning off the heater driving to the heater side through the transmission unit 72 (S191). Accordingly, excessive heating can be prevented.

Thereafter, when a predetermined time elapses or the current temperature is detected to be below the predetermined temperature (S192), the microcomputer 40 proceeds to step S16 to drive the heater again.

On the other hand, when it is determined that the user does not exist in the heating space in step S13 during the heating operation (S13), the microcomputer 40 counts the waiting time.

Subsequently, the microcomputer 40 compares the counted waiting time with the pre-stored waiting time in the memory 60, and when it is determined that the pre-stored waiting time has elapsed, the microcomputer 40 proceeds to step S133 and transmits a signal for turning off the heater driving. It feeds to the heater side via 72 (S133). Accordingly, it is possible to reduce energy loss due to continuous heating in the absence of a user.

If it is determined in step S132 that the pre-stored waiting time has not elapsed, the microcomputer repeatedly performs steps S131 and S132.

As described in detail above, according to the present invention, the user's convenience can be further increased by sensing the ambient temperature of the user and automatically adjusting the amount of heat generated by the heater according to a preset temperature.

In addition, by minimizing power waste by automatically controlling the heater on / off by detecting the presence or absence of the user, it is possible to prevent overheating of the heater by automatically turning off the heater when the user is not detected for a preset time. have.

Claims (5)

In the near-infrared heater containing a heating element emitting near-infrared rays, A heater driving unit which controls the amount of heat generated by the heating element; A transceiver for receiving a command for remotely controlling the heater driver; A heater controller which controls the heater driver in accordance with a command received through the transmitter / receiver and adjusts the amount of heat generated by the heating element; A key input unit for setting a desired temperature according to heating from a user, A temperature sensor for detecting a current temperature around the user; A microcomputer for outputting a command for controlling the amount of heat generated by the heating element by comparing a desired temperature input through the key input unit with a current temperature detected by the temperature sensing unit; And a temperature controlled transceiver comprising a transmitter and a receiver for transmitting the command output by the microcomputer to recognize the heater controller through the transceiver. The transmitter of claim 1, wherein the temperature controlled transceiver User presence detection unit for detecting the presence of the user in the heating space, A standby time input key for receiving a standby time for turning off the heating element when a user is not detected through the user presence sensor; Counting the time when the user is not detected through the waiting time input through the waiting time input key and the user presence detecting unit, and outputting a command to turn off the heating element when the counting time passes the waiting time. Temperature control device of the near infrared heater, characterized in that further comprising the micom. The transmitter of claim 2, wherein the temperature controlled transmitter is When the user is not detected through the user presence detection unit, when the counting time passes the waiting time input through the waiting time input key and the heating element is turned off, a predetermined time has elapsed or the current detected by the temperature detecting unit And a microcomputer for outputting a command to turn on the heating element again if the temperature is equal to or lower than a predetermined temperature. The transmitter of claim 2, wherein the temperature controlled transmitter is If the user is not detected through the user presence detection unit counts the time, and if the user is detected again through the user presence detection unit within the waiting time input through the waiting time input key to reset the count Temperature control device of the near-infrared heater, further comprising. The method of claim 1, And comparing the present temperature detected by the temperature sensing unit with a desired temperature set by the key input unit, and outputting a command for lowering the heat generation amount of the heating element when the present temperature is higher than the desired temperature. Temperature control device for near-infrared heaters.