Outdoor warmer

Abstract

The outdoor warmer comprises a furnace end located at the top of the warmer, a supporting rod supporting the furnace end and a base supporting the supporting rod, a gas valve used for adjusting the flame size and an ignition assembly used for ignition of the warmer are arranged in the furnace end, and the gas valve comprises a main valve and an automatic control valve. The fuel gas path passing through the main valve comprises a main gas path and an ever-burning fire gas path, the automatic control valve is arranged on the main gas path, the main gas path further comprises an ignition disc, the automatic control valve controls the fuel gas flow of the ignition disc, the ever-burning fire gas path comprises an ever-burning fire pipe, and the ever-burning fire pipe is arranged on the main gas path. The ignition assembly is close to the ever-burning fire pipe to ignite fuel gas of the ever-burning fire gas circuit, the ever-burning fire pipe is close to the ignition disc, and flames of the ever-burning fire pipe can ignite the ignition disc. The ignition assembly of the warmer is long in service life.

Description

Technical Field

[0001] This application relates to the field of heater technology, and more specifically, in particular to an outdoor heater. Background Technology

[0002] Gas heaters are commonly used heating devices, allowing users to chat, dine, and so on around them. Currently, most gas heaters on the market require manual ignition each time, typically using piezoelectric or pulse ignition. After a certain number of uses, the ignition failure rate increases significantly. Therefore, it is necessary to reduce the frequency of manual ignition to decrease user intervention and extend the lifespan of the heater's ignition system. Utility Model Content

[0003] The purpose of this application is to address the shortcomings of the existing technology and propose an outdoor heater with a long ignition life.

[0004] To achieve the above objectives, this application proposes an outdoor heater, including a burner head located at the top of the heater, a support rod supporting the burner head, and a base supporting the support rod. The burner head is provided with a gas valve for adjusting the flame size and an ignition assembly for igniting the heater. The gas valve includes a main valve and an automatic control valve. The gas path after the main valve includes a main gas path and a burner path. The automatic control valve is located on the main gas path. The main gas path also includes an ignition plate. The automatic control valve controls the gas flow rate of the ignition plate. The burner path includes a burner tube. The ignition assembly is located near the burner tube to ignite the gas in the burner path. The burner tube is located near the ignition plate, and the flame of the burner tube can ignite the ignition plate.

[0005] Both the main valve and the automatic control valve can control the gas flow rate of the ignition plate, and the main valve controls the gas flow rate of the pilot flame tube.

[0006] The heater also includes a sensor module that integrates multiple detections. The sensor module is located on the base or the support rod. The sensor module is electrically connected to the automatic control valve to control the opening and closing of the automatic control valve and the amount of gas flow.

[0007] The sensor module includes an infrared trigger sensor and a millimeter-wave sensor. Both the infrared trigger sensor and the millimeter-wave sensor are electrically connected to the automatic control valve. When the infrared trigger sensor or the millimeter-wave sensor is triggered, the automatic control valve opens.

[0008] When the infrared trigger sensor and the millimeter-wave sensor are triggered simultaneously, the automatic control valve opens.

[0009] The sensor module includes an infrared detection sensor or a distance sensor. The infrared detection sensor is electrically connected to the automatic control valve and can send a signal to the automatic control valve to control the automatic control valve to adjust the gas flow rate. Alternatively, the distance sensor is electrically connected to the automatic control valve and can send a signal to the automatic control valve to control the automatic control valve to adjust the gas flow rate.

[0010] The burner head is also equipped with a tilt switch assembly and a thermocouple. The thermocouple is close to the pilot light tube, and the flame of the pilot light tube can heat the thermocouple. The main valve, the tilt switch assembly, and the thermocouple form a connected circuit. When the tilt switch assembly is triggered, the circuit is broken and the main valve is completely closed; or, when the flame at the thermocouple disappears, the circuit is broken.

[0011] Beneficial effects:

[0012] As can be seen from the above technical solutions, this application has the following advantages compared with the prior art:

[0013] 1. The ignition plate is close to the pilot light tube, and the flame of the pilot light tube can ignite the ignition plate. This means that the ignition plate does not need to be ignited by the ignition component each time it is lit, which increases the service life of the ignition component and improves the convenience of ignition.

[0014] 2. The sensor can intelligently turn on and adjust the heater based on the distance between the user and the heater, the temperature of the user's surrounding environment, or whether the user has left or not, thereby reducing the hassle of manual adjustment for the user and improving the user experience. Attached Figure Description

[0015] Figure 1 This is a three-dimensional assembly diagram of a heater according to an embodiment of this application;

[0016] Figure 2 yes Figure 1 Enlarged diagram of circle B

[0017] Figure 3 yes Figure 1 A partial cross-sectional view along line AA in the middle section;

[0018] Figure 4 This is a partial cross-sectional perspective view of the burner head according to an embodiment of this application;

[0019] Figure 5 This is a schematic flowchart of the gas flow in a heater according to an embodiment of this application.

[0020] Figure label:

[0021] 1-Burnhead; 11-Gas valve; 12-Ignition plate; 13-Ignition assembly; 14-Long flame tube; 15-Thermocouple; 16-Tilting switch; 2-Support rod; 3-Base; 4-Sensor module. Detailed Implementation

[0022] The embodiments of this application will now be clearly and completely described with reference to the accompanying drawings.

[0023] Please refer to Figures 1 to 5 As shown, an outdoor heater according to this application includes a burner 1 for emitting heat, a support rod 2 located below and supporting the burner 1, and a base 3 located at the bottom of the heater and fixing the support rod 2. The heater also includes a gas valve 11 located inside the burner 1 or the support rod 2, an ignition assembly 13 located inside the burner 1 or the support rod 2, an ignition plate 12 located inside the burner 1, a gas pipe at least partially located inside the support rod 2, and a gas cylinder located in the base 3. The gas pipe delivers gas from the gas cylinder to the gas valve 11. The support rod 2 is a hollow cylinder open at both ends, and it also protects the gas pipe, reducing the possibility of gas leakage due to damage to the gas pipe.

[0024] The gas valve 11 includes a main valve and an automatic control valve. The main valve is a mechanical valve that controls the gas flow rate by turning a knob on the valve. The automatic control valve is a type of regulating valve that controls the valve size via electricity or an electrical signal to regulate the gas flow rate. The main valve and the automatic control valve can be two separate valve bodies, or a single valve body can have the functions of both a main valve and an automatic control valve.

[0025] After passing through the main valve, the gas is divided into two gas paths: the main gas path and the pilot flame gas path. An automatic control valve is located on the main gas path. Gas enters the main gas path after passing through the main valve, and then directly reaches the ignition plate 12 via the automatic control valve. The pilot flame gas path includes a pilot flame tube 14 at its end. Gas enters the pilot flame gas path after passing through the main valve and then reaches the pilot flame tube 14. Both the main gas path and the pilot flame gas path can include pipes for transporting gas, which can be rubber or metal pipes; or they can be channels within components, such as the gas passage within the gas valve 11, the gas passage within the ignition plate 12, or the gas passage within the pilot flame tube 14.

[0026] Ignition assembly 13 is located near pilot tube 14, and pilot tube 14 is located near ignition plate 12. Ignition assembly 13 is either piezoelectric ignition or pulse ignition; this application uses piezoelectric ignition. When the main valve is open, ignition assembly 13 ignites the gas coming from pilot tube 14; when the automatic control valve is open, the flame from pilot tube 14 can ignite ignition plate 12.

[0027] The gas valve 11 is located on the gas pipe and is used to control the gas flow rate. The gas valve 11 can be inside the burner head 1, support rod 2, or base 3. In this embodiment, the gas valve 11 is located inside the burner head 1. The main valve can be manually opened, closed, and the gas flow rate adjusted via a mechanical knob, while the automatic control valve can be electrically opened, closed, and the gas flow rate adjusted via an internal sensor control module.

[0028] The heater also includes a thermocouple 15 and a tilt switch 16 located inside the burner head 1. The thermocouple 15 is close to the pilot light tube 14, meaning that the flame of the pilot light tube 14 can come into contact with the thermocouple 15; or the thermocouple 15 is close to both the pilot light tube 14 and the ignition plate 12, meaning that the thermocouple 15 can come into contact with both the pilot light flame and the ignition plate 12 flame. The main valve, thermocouple 15, and tilt switch 16 form a complete circuit. First, when the pilot light tube 14 is without a flame, there is no potential difference on the thermocouple 15, resulting in no current. The main valve is completely closed when there is no current. Therefore, the gas in the gas cylinder is disconnected from the ignition plate 12, and also disconnected from the pilot light tube 14; that is, the gas does not flow. When igniting, the user needs to press the power switch or open the pulse switch. At this time, the main valve opens, allowing the gas in the gas cylinder to flow to the pilot light tube 14 and ignite it. When the flame of the pilot light tube 14 is lit, one end of the thermocouple 15 is close to the flame, and the other end is far from the flame, creating a temperature difference that is converted into current. This current flows to the main valve, keeping it open. The current then flows from the main valve to the tilt switch 16 and finally back to the thermocouple 15, forming the entire circuit.

[0029] In the circuit of the main valve, thermocouple 15, and tilt switch 16, the tilt switch 16 is in the connected state when the heater is in its normal vertical position; when the heater is tilted at an angle of more than 45 degrees relative to the vertical position, the tilt switch 16 is disconnected. At this time, the circuit of the main valve, thermocouple 15, and tilt switch 16 is disconnected, the main valve is closed, that is, the gas supply to the burner tube 14 is shut off, and the burner tube 14 is extinguished, avoiding the possibility of the flame at the burner head 1 continuing to burn after the heater is tilted, thus improving the safety of the entire heater.

[0030] The heater also includes a sensor module 4, which is electrically connected to the automatic control valve. This electrical connection includes, but is not limited to, magnetic and optical signals. The sensor module 4 can control the opening and closing of the automatic control valve and adjust the gas flow rate. The sensor module 4 converts received information or signals into electrical or electromagnetic signals and sends them to the automatic control valve to control it.

[0031] Specifically, sensor module 4 includes an infrared trigger sensor, a millimeter-wave sensor, an infrared detection sensor, and a distance sensor. Each of these sensors has a distance sensor for auxiliary detection. These sensors can be integrated into a single sensor module 4, or they can be arranged separately. Both the infrared trigger sensor and the millimeter-wave sensor are electrically connected to the automatic control valve.

[0032] Infrared trigger sensors are used to detect the wavelength of infrared light. If a wavelength matching the infrared radiation emitted by the human body (e.g., 7 to 13 micrometers) or a wavelength set by the sensor (e.g., 3 to 50 micrometers) is detected, the infrared trigger sensor signal is positive. That is, the infrared trigger sensor will activate a positive signal after detecting an object, human body, or animal at a specified temperature. Millimeter-wave sensors are used to detect moving objects or human bodies or animals with heartbeats and breathing. When a human body moves into the millimeter-wave detection range, the millimeter-wave sensor activates a positive signal. Since millimeter-wave sensors can detect signals such as breathing and heartbeats, the millimeter-wave sensor will always be in a positive signal state as long as the user remains within its signal range. When both the infrared trigger sensor and the millimeter-wave sensor are simultaneously triggered, the automatic control valve opens, and the flame of the burner tube 14 ignites the ignition plate 12 to start the heater. When either the infrared trigger sensor or the millimeter-wave sensor is negative, if the user leaves the detection range of either sensor, the automatic control valve closes, and the ignition plate 12 of the heater shuts off. In this application, the detection range radius of the infrared trigger sensor and the millimeter-wave sensor is between 0 and 5 meters. By using the flame of the burner tube 14 to ignite the ignition plate 12, the frequency of piezoelectric or pulse ignition is reduced, improving the ignition success rate and the service life of the ignition assembly 13.

[0033] Infrared sensors are used to detect user skin temperature or ambient temperature. If the infrared sensor detects an ambient temperature below 16 degrees Celsius, it sends a control signal to the automatic control valve to increase the gas supply, thereby increasing the flame of burner 1 and improving the heater's heating power. If the infrared sensor detects an ambient temperature above 22 degrees Celsius, it sends a control signal to the automatic control valve to decrease the gas supply, thereby decreasing the flame of burner 1 and reducing the heater's heating power. If the infrared sensor detects an ambient temperature between 16 and 22 degrees Celsius, it maintains the current gas supply to preserve the current heating power of burner 1. It is understood that the infrared sensor's environmental detection only covers the ambient temperature within 5 meters of the heater. In this embodiment, the infrared sensor detects the temperature of specific objects within 5 meters, including the air, the user's clothing, and the surfaces of furniture such as sofas.

[0034] The sensor module 4 is located in the middle or at the top of the base 3, or on the support rod 2. Specifically, the sensor module 4 is located on the top wall of the base 3; at the chamfer between the top wall and the side wall; or in the upper middle part of the side wall. At least three sets of sensor modules 4 are evenly arranged around the circumference of the base 3 to achieve 360-degree detection around the base 3. The sensor module 4 is at least 40 cm above the ground, such as between 40 cm and 200 cm. In this embodiment, it is 80 cm. The sensor module 4 is oriented upwards at a 45-degree angle, allowing the sensor to detect the area above the plane where the sensor module 4 is located, but not below it. This design reduces false detections of pets such as cats and dogs; that is, when waterproof cats and dogs are near the heater, the heater remains off.

[0035] In other embodiments, the distance sensor is directly electrically connected to the automatic control valve, allowing the distance sensor to directly control the flow rate of the automatic control valve. The distance sensor is used to detect the distance between the user and the heater. After the heater is turned on, the distance sensor controls the amount of gas delivered through the automatic control valve, thereby controlling the size of the flame.

[0036] The automatic control valve has multiple settings based on the gas flow rate, from high to low. Similarly, the distance sensor has multiple settings based on the distance, from far to near. The settings on the automatic control valve correspond one-to-one with the settings on the distance sensor. Specifically, the high gas flow setting on the automatic control valve corresponds to the far distance setting on the distance sensor, and the low gas flow setting corresponds to the near distance setting on the distance sensor. In short, the closer the distance to the heater, the smaller the flame; the farther the distance, the larger the flame.

[0037] Specifically, the automatic control valve controls the gas in four levels: Level 1, Level 2, Level 3, and Level 4, with the flame gradually decreasing from Level 1 to Level 4. When the distance sensor detects the user is within 4 to 5 meters, the automatic control valve controls the gas in Level 1; when the distance sensor detects the user is within 3 to 4 meters, the automatic control valve controls the gas in Level 2; when the distance sensor detects the user is within 1 to 2 meters, the automatic control valve controls the gas in Level 3; and when the distance sensor detects the user is within 1 meter, the automatic control valve controls the gas in Level 4. It is understandable that the levels and distances can be adjusted according to product requirements.

[0038] In other embodiments, the infrared trigger sensor and the millimeter-wave sensor are electrically or mechanically connected to the automatic control valve, such that the automatic control valve delays its response when the infrared trigger sensor and the millimeter-wave sensor are triggered.

[0039] Specifically, when the infrared trigger sensor and millimeter-wave sensor activate positive signals, the automatic control valve is set to open with a delay. For example, after an 8-second delay following activation of the infrared trigger sensor and millimeter-wave sensor positive signals, the automatic control valve allows air to enter and ignites the heater using the permanent flame tube 14. Alternatively, if the detected target is lost within 8 seconds, the automatic control valve is deactivated. This setting reduces the likelihood of the heater not activating when animals or people pass by quickly, further minimizing the possibility of accidental activation. It is understood that the delay time of the delay module can be set independently, such as 4 seconds, 5 seconds, 6 seconds, 7 seconds, 9 seconds, 10 seconds, 12 seconds, etc.

[0040] It is evident that the term "comprising" as used in the specification and claims is an open-ended term and should be interpreted as "including but not limited to". Terms such as "connected", "linked", and "fixed" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral part of a structure. A fixed connection can also be integrally formed. They can be direct connections or indirect connections through an intermediate medium, unless otherwise explicitly defined. Terms such as "proximity" and "orientation" without specific numerical values ​​or reversals can be understood as simply achieving the corresponding function and are clear limitations. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The term "and / or" as used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0041] Although embodiments of this application have been shown and described above, it is understood that the above description is only a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has been disclosed above with reference to preferred embodiments, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An outdoor heater, comprising a burner head located at the top of the heater, a support rod supporting the burner head, and a base supporting the support rod, wherein the burner head is provided with a gas valve for adjusting the flame size and an ignition assembly for igniting the heater, characterized in that, The gas valve includes a main valve and an automatic control valve. The gas path after the main valve includes a main gas path and a pilot flame gas path. The automatic control valve is located on the main gas path. The main gas path also includes an ignition plate. The automatic control valve controls the gas flow rate of the ignition plate. The pilot flame gas path includes a pilot flame tube. The ignition assembly is located near the pilot flame tube to ignite the gas in the pilot flame gas path. The pilot flame tube is located near the ignition plate, and the flame of the pilot flame tube can ignite the ignition plate.

2. The heater according to claim 1, characterized in that, Both the main valve and the automatic control valve can control the gas flow rate of the ignition plate, and the main valve controls the gas flow rate of the pilot flame tube.

3. The heater according to claim 2, characterized in that, The heater also includes a sensor module that integrates multiple detections. The sensor module is located on the base or the support rod. The sensor module is electrically connected to the automatic control valve to control the opening and closing of the automatic control valve and the amount of gas flow.

4. The heater according to claim 3, characterized in that, The sensor module includes an infrared trigger sensor and a millimeter-wave sensor. Both the infrared trigger sensor and the millimeter-wave sensor are electrically connected to the automatic control valve. When the infrared trigger sensor or the millimeter-wave sensor is triggered, the automatic control valve opens.

5. The heater according to claim 4, characterized in that, When the infrared trigger sensor and the millimeter-wave sensor are triggered simultaneously, the automatic control valve opens.

6. The heater according to claim 5, characterized in that, The sensor module includes an infrared detection sensor or a distance sensor. The infrared detection sensor is electrically connected to the automatic control valve and can send a signal to the automatic control valve to control the automatic control valve to adjust the gas flow rate. Alternatively, the distance sensor is electrically connected to the automatic control valve and can send a signal to the automatic control valve to control the automatic control valve to adjust the gas flow rate.

7. The heater according to claim 1, characterized in that, The burner head is also equipped with a tilt switch assembly and a thermocouple. The thermocouple is close to the pilot light tube, and the flame of the pilot light tube can heat the thermocouple. The main valve, the tilt switch assembly, and the thermocouple form a connected circuit. When the tilt switch assembly is triggered, the circuit is broken and the main valve is completely closed; or, when the flame at the thermocouple disappears, the circuit is broken.

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