Automatic starting and stopping device of warming equipment

Abstract

The utility model discloses an automatic starting and stopping device for warming equipment, which comprises an ACDC power supply module, an infrared proximity switch module, a temperature control module and a relay module, the output end of the ACDC power supply module is used for accessing alternating current mains supply, and the output end of the ACDC power supply module is electrically connected with the infrared proximity switch module and the temperature control module respectively; the relay module is used for being connected between a load and an alternating current mains supply, and the relay module is further electrically connected with the infrared proximity switch module and the temperature control module. According to the utility model, the ACDC power supply module, the infrared proximity switch module, the temperature control module and the relay module are arranged, so that the purpose that the warming equipment is started when a person comes and stops working when the person leaves can be achieved. And on-off control can be carried out under a preset temperature value by sensing the temperature change of the heating equipment, so that an over-temperature protection effect is achieved, and therefore, accurate control is achieved, and fire disasters and accidents are effectively avoided.

Description

Technical Field

[0001] The utility model relates to a fire-warming device, in particular to an automatic start-stop device for the fire-warming device. Background Art

[0002] At present, many provinces in my country rely on electric ovens for heating in winter, but electric oven equipment relies entirely on manual opening or stopping. For middle-aged and elderly people, their memory declines, and they often forget to turn off the oven when they leave. In this state, not only does the oven do useless work, but in serious cases it is very easy to cause a fire, causing great economic losses and physical harm to the family. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide an automatic start-stop device for a warming fire device, which can automatically start the warming fire device when a person or an object approaches a predetermined area of ​​an infrared proximity switch module, and automatically stop the warming fire device when the person leaves the predetermined area. The warming fire device automatically stops working when the temperature exceeds a predetermined value, and automatically resumes working when the temperature drops below the predetermined value.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] An automatic start-stop device for a fire-roasting device includes: an ACDC power supply module, an infrared proximity switch module, a temperature control module and a relay module.

[0006] The output end of the ACDC power supply module is used to access the AC mains, and the output end of the ACDC power supply module is electrically connected to the infrared proximity switch module and the temperature control module respectively. The relay module is used to be connected between the load and the AC mains, and the relay module is also electrically connected to the infrared proximity switch module and the temperature control module respectively.

[0007] In one embodiment, the infrared proximity switch module is an infrared proximity switch.

[0008] In one embodiment, the infrared proximity switch module is a normally open diffuse reflection infrared induction photoelectric switch.

[0009] In one embodiment, the temperature control module is a temperature control switch.

[0010] In one embodiment, the relay module includes a relay switch, a diode D1, a resistor R1 and a light-emitting diode LED1. The switch part of the relay switch is connected between the AC mains and the load, the main body of the relay switch is electrically connected to the diode D1, the resistor R1 is connected in series with the light-emitting diode LED1 and then connected in parallel with the diode D1, and the main body of the relay switch is also electrically connected to the infrared proximity switch module and the temperature control module respectively.

[0011] In one embodiment, the ACDC power supply module includes a transformer unit, a rectifier unit and a voltage stabilizing unit. The input end of the transformer unit is electrically connected to the AC mains, the output end of the transformer unit is electrically connected to the rectifier unit, the output end of the rectifier unit is electrically connected to the voltage stabilizing unit, and the output end of the voltage stabilizing unit is electrically connected to the infrared proximity switch module and the temperature control module respectively.

[0012] In one embodiment, the transformer unit is a transformer T1 , the primary side of the transformer T1 is electrically connected to the AC mains, and the secondary side of the transformer T1 is electrically connected to the rectifier unit.

[0013] In one embodiment, the rectifier unit includes a rectifier bridge BD1, a capacitor C1 and a capacitor C2, the input end of the rectifier bridge BD1 is electrically connected to the transformer unit, the output end of the rectifier bridge BD1 is electrically connected to the capacitor C1 and the capacitor C2 respectively, and the output end of the rectifier bridge BD1 is also electrically connected to the voltage stabilizing unit.

[0014] In one embodiment, the voltage stabilizing unit includes a voltage stabilizing chip U1, a capacitor C3 and a capacitor C4. The input end of the voltage stabilizing chip U1 is electrically connected to the rectifier unit, and the output end of the voltage stabilizing chip U1 is electrically connected to the capacitor C3 and the capacitor C4 respectively. The output end of the voltage stabilizing chip U1 is also electrically connected to the infrared proximity switch module and the temperature control module respectively.

[0015] In one embodiment, the load is a fire-making device.

[0016] The advantages and beneficial effects of the present invention compared to the prior art are as follows:

[0017] The utility model is an automatic start-stop device for a warming fire device. By arranging an infrared proximity switch module and a temperature control module, when the infrared proximity switch module senses the approach and departure of an object in a predetermined area, it transmits a signal to a relay module, causing the module to be powered on when a person or object approaches and powered off when the person leaves, so that the power on and off of the warming fire device can be controlled, thereby achieving the purpose of starting the warming fire device when a person approaches and stopping the device when the person leaves. The temperature control module connected in series between the ACDC power supply module and the relay module can sense the temperature change of the warming fire device and perform on-off control at a predetermined temperature value, thereby playing a role of over-temperature protection, thereby achieving precise control and effectively avoiding fire and accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a functional module diagram of an automatic start-stop device for a warming device according to one embodiment of the present invention;

[0019] Figure 2 for Figure 1 The circuit diagram of the automatic start and stop device of the warming equipment shown. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0021] See also Figure 1~Figure 2 An automatic start-stop device for a warming device includes: an ACDC power supply module, an infrared proximity switch module, a temperature control module, and a relay module. It should be noted that the ACDC power supply module is used to convert 220V AC mains power into the normal power supply voltage of the device; the infrared proximity switch module is used to sense the approach and distance of an object and send a signal to the relay module; the temperature control module is used to sense the temperature change of the warming device and send a signal to the relay module; the relay module is used to control the on and off of the AC mains power and the load according to the signals sent by the infrared proximity switch module and the temperature control module.

[0022] The output end of the ACDC power supply module is used to access the AC mains power supply. The output end of the ACDC power supply module is electrically connected to the infrared proximity switch module and the temperature control module, respectively. The relay module is used to connect between the load and the AC mains power supply, and the relay module is also electrically connected to the infrared proximity switch module and the temperature control module, respectively. In this embodiment, the infrared proximity switch module is an infrared proximity switch. The load is a warming device. The infrared proximity switch module is a normally open diffuse reflection infrared induction photoelectric switch. Preferably, the temperature control module is a temperature control switch, and can also be provided with a tactile switch and a micro switch connected in series.

[0023] An automatic start-stop and over-temperature protection device for a warming device comprises a diffuse reflection infrared photoelectric switch (preferably, the diffuse reflection infrared photoelectric switch can be E3F-Ds3OC4), a normally open type 5V-36V, a normally closed temperature control switch (KsD9700 35-155 degrees can be selected), a 220VAC to 5-36VDC power supply module (taking 220VAC to 12VDC as an example), and a 5V-36VDC to 220VAC relay module (taking 12VDC to 220VAC relay module as an example). The diffuse reflection infrared photoelectric switch is fixed by a fixing bracket, and an external socket is connected to the warming device.

[0024] When the diffuse reflection infrared photoelectric switch is connected to the 220VAC to 12VDC converter to obtain power, the 220VAC to 12VDC converter is connected to the relay module (the relay of the relay module uses 12VDC to control the 220VAC relay) to provide 12VDC power. A temperature control switch (normally closed type ksD9700) is connected in series in the middle. The AC end of the 12VDC-controlled 220VAC relay module is connected to the socket, and the fire-warming equipment is connected through the socket to provide and control the 220VAC power supply for the fire-warming equipment.

[0025] This utility model uses a diffuse infrared photoelectric switch to sense the approach and departure of objects within a predetermined area. It then transmits a signal to a 12VDC-controlled 220VAC relay module, causing it to power on when a person or object approaches and power off when it leaves. This allows the socket connected to the fire-heating device to be powered on and off, effectively controlling the device's power supply. This ensures that the device starts when a person approaches and stops when they leave. A temperature-controlled switch, KsD9700, connected in series between the 220VAC-to-12DC power module and the 12VDC-controlled 220VAC relay module senses temperature changes in the device and switches on and off at a predetermined temperature (e.g., 60 degrees Celsius), providing over-temperature protection. This precise control effectively prevents fires and accidents.

[0026] See also Figure 2The relay module includes a relay switch, a diode D1, a resistor R1 and a light-emitting diode LED1. The switch part of the relay switch is connected between the AC mains and the load. The body of the relay switch is electrically connected to the diode D1. The resistor R1 is connected in series with the light-emitting diode LED1 and then connected in parallel with the diode D1. The body of the relay switch is also electrically connected to the infrared proximity switch module and the temperature control module respectively.

[0027] It should be noted that the ACDC power supply module includes a transformer unit, a rectifier unit, and a voltage stabilizing unit. The input of the transformer unit is electrically connected to the AC mains, the output of the transformer unit is electrically connected to the rectifier unit, the output of the rectifier unit is electrically connected to the voltage stabilizing unit, and the output of the voltage stabilizing unit is electrically connected to the infrared proximity switch module and the temperature control module, respectively. Thus, by configuring the transformer unit, rectifier unit, and voltage stabilizing unit, the AC mains can be converted into a stable 12V DC power.

[0028] Furthermore, the transformer unit is a transformer T1, the primary of the transformer T1 is electrically connected to the AC mains, and the secondary of the transformer T1 is electrically connected to the rectifier unit. In this way, by providing the transformer T1, voltage conversion and isolation can be achieved.

[0029] Furthermore, the rectifier unit includes a rectifier bridge BD1, a capacitor C1, and a capacitor C2. The input end of the rectifier bridge BD1 is electrically connected to the transformer unit, and the output end of the rectifier bridge BD1 is electrically connected to the capacitors C1 and C2, respectively. The output end of the rectifier bridge BD1 is also electrically connected to the voltage stabilization unit. Thus, by providing the rectifier bridge BD1, capacitors C1, and capacitors C2, rectification of the output power can be achieved.

[0030] Furthermore, the voltage stabilization unit includes a voltage stabilization chip U1, capacitors C3, and C4. The input of the voltage stabilization chip U1 is electrically connected to the rectifier unit, and the output of the voltage stabilization chip U1 is electrically connected to capacitors C3 and C4, respectively. The output of the voltage stabilization chip U1 is also electrically connected to the infrared proximity switch module and the temperature control module, respectively. Thus, by configuring the voltage stabilization chip U1, capacitors C3, and C4, the output voltage can be kept stable within a controllable range. In this embodiment, a stable 12V voltage can be output.

[0031] Working principle: When a person approaches the diffuse reflection infrared photoelectric switch, the signal is transmitted to the 12VDC control 220VAC relay module through the BK signal line, causing it to close and provide 220VAC power to the socket, thereby supplying power to the heating equipment connected to the socket; conversely, when a person leaves the predetermined area of ​​the diffuse reflection infrared photoelectric switch, the BK signal line of the diffuse reflection infrared photoelectric switch will also transmit a signal to the 12VD control 220VAC relay module, causing the relay module to operate, disconnecting the 220VAC power supply, and causing the heating equipment to lose power and stop working.

[0032] The temperature control switch KsD9700 senses the temperature of the heating equipment and disconnects the electrical connection when it exceeds a predetermined temperature. When the temperature drops to a predetermined temperature value, it will be turned on again to continue supplying 220VAC power, thereby providing over-temperature protection.

[0033] The diffuse reflection infrared photoelectric switch is fixed by a fixing bracket at the position where the fire is required to sense the approach of objects or people. The sensing area must avoid other objects that affect the sensing, and also avoid the direct influence of the fire equipment on the infrared light of the diffuse reflection infrared photoelectric switch (that is, the infrared light of the fire equipment cannot directly face the npn type sensing probe of the diffuse reflection infrared photoelectric switch).

[0034] The 220VAC to 12VDC power supply module is connected to the 12VDC control 220VAC relay module and placed in a plastic box. The socket is fixed on the plastic box and connected to the AC connection terminal of the 12VDC control 220VAC relay module via a wire. The normally closed temperature control switch KSD9700 is connected in series to the 12VDC positive or negative line between the 220VAC to 12VDC and 12VDC control 220VAC relay modules.

[0035] The above-described embodiments merely represent several embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An automatic start-stop device for a fire-warming device, characterized in that: include: ACDC power module, infrared proximity switch module, temperature control module and relay module, The output end of the ACDC power supply module is used to access the AC mains, and the output end of the ACDC power supply module is electrically connected to the infrared proximity switch module and the temperature control module respectively. The relay module is used to be connected between the load and the AC mains, and the relay module is also electrically connected to the infrared proximity switch module and the temperature control module respectively.

2. The automatic start-stop device for heating equipment according to claim 1, characterized in that: The infrared proximity switch module is an infrared proximity switch.

3. The automatic start-stop device for heating equipment according to claim 1 or 2, characterized in that: The infrared proximity switch module is a normally open diffuse reflection infrared induction photoelectric switch.

4. The automatic start-stop device for heating equipment according to claim 1, characterized in that: The temperature control module is a temperature control switch.

5. The automatic start and stop device for heating equipment according to claim 1, characterized in that: The relay module includes a relay switch, a diode D1, a resistor R1 and a light-emitting diode LED1. The switch part of the relay switch is connected between the AC mains and the load, the main body of the relay switch is electrically connected to the diode D1, the resistor R1 is connected in series with the light-emitting diode LED1 and then connected in parallel with the diode D1, and the main body of the relay switch is also electrically connected to the infrared proximity switch module and the temperature control module respectively.

6. The automatic start-stop device for heating equipment according to claim 1, characterized in that: The ACDC power supply module includes a transformer unit, a rectifier unit and a voltage stabilizing unit. The input end of the transformer unit is electrically connected to the AC mains, the output end of the transformer unit is electrically connected to the rectifier unit, the output end of the rectifier unit is electrically connected to the voltage stabilizing unit, and the output end of the voltage stabilizing unit is electrically connected to the infrared proximity switch module and the temperature control module respectively.

7. The automatic start-stop device for heating equipment according to claim 6, characterized in that: The transformer unit is a transformer T1 , a primary side of the transformer T1 is electrically connected to the AC mains, and a secondary side of the transformer T1 is electrically connected to the rectifier unit.

8. The automatic start-stop device for heating equipment according to claim 6, characterized in that: The rectifier unit includes a rectifier bridge BD1, a capacitor C1 and a capacitor C2. The input end of the rectifier bridge BD1 is electrically connected to the transformer unit, and the output end of the rectifier bridge BD1 is electrically connected to the capacitor C1 and the capacitor C2 respectively. The output end of the rectifier bridge BD1 is also electrically connected to the voltage stabilizing unit.

9. The automatic start-stop device for heating equipment according to claim 6, characterized in that: The voltage stabilizing unit includes a voltage stabilizing chip U1, a capacitor C3 and a capacitor C4. The input end of the voltage stabilizing chip U1 is electrically connected to the rectifier unit, and the output end of the voltage stabilizing chip U1 is electrically connected to the capacitor C3 and the capacitor C4 respectively. The output end of the voltage stabilizing chip U1 is also electrically connected to the infrared proximity switch module and the temperature control module respectively.

10. The automatic start-stop device for a warming device according to any one of claims 4 to 9, characterized in that: The load is a fire-warming device.

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