Combustor and gas stove

Abstract

The utility model relates to a burner and a gas stove. The burner comprises a burner head, a burner cap and a photoelectric detector. The burner cap is arranged on the burner head, and a vertically-through light through hole is formed in the center of the burner cap and the center of the burner head. The photoelectric detector is used for being electrically connected with the signal processor, the photoelectric detector is arranged on the furnace end, and the photoelectric detector can sense infrared radiation energy generated by the pot bottom through the light through hole. Compared with a mode of detecting temperature through a photoelectric detector in the prior art, the photoelectric detector in the embodiment is directly arranged on the furnace end, the photoelectric detector and the signal processor are separately arranged, so that the photoelectric detector is close to the pot bottom as far as possible, the diameter size of the light through hole can be reduced, a furnace end with a large size does not need to be designed, and the cost is reduced. And the effects of saving materials and reducing the cost are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of stoves, and in particular to a burner and a gas stove. Background Art

[0002] With the rapid development of gas stoves, gas stoves with auxiliary cooking functions such as anti-dry burning gas stoves, healthy cooking gas stoves, and smart recipe cooking stoves have appeared on the market. These gas stoves with auxiliary cooking functions can provide users with a safe and comfortable cooking experience, and are becoming more and more widely used in people's lives.

[0003] In the related technology, gas stoves with auxiliary cooking functions all require temperature detection technology, which is specifically to sense the temperature of the pot by directly contacting the bottom of the pot with a temperature sensor, or by setting a light hole at the center of the burner and setting a photoelectric detector corresponding to the position of the light hole. The photoelectric detector does not need to be in direct contact with the bottom of the pot, but calculates the temperature of the bottom of the pot by sensing the infrared radiation of the bottom of the pot.

[0004] However, for the direct contact temperature detection method, the temperature sensor uses a contact temperature sensor such as a thermocouple or thermistor. The temperature sensor directly contacts the bottom of the pot or contacts the bottom of the pot through a metal shell to measure the temperature. The temperature sensor must be in contact with the bottom of the pot. Heat is transferred from the bottom of the pot to the temperature sensor through heat conduction, and poor contact will produce a large error. In addition, for the method of using a photodetector to sense the temperature of the bottom of the pot, the photodetector is usually installed on the bottom shell of the stove and integrated with the signal processor. The distance from the bottom of the pot is relatively far, so according to the light-sensitive range of the photodetector, the diameter of the light hole needs to be set relatively large, which leads to a large size of the stove head and wastes material costs. Summary of the invention

[0005] The first technical problem solved by the present application is to provide a burner which can effectively reduce the diameter of the light-through hole, reduce the size of the burner head, and reduce the material cost.

[0006] The second technical problem solved by the present application is to provide a gas stove which can effectively reduce the diameter of the light-through hole, reduce the size of the burner head, and reduce the material cost.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] A burner, comprising:

[0009] stove top;

[0010] A fire cover, the fire cover is mounted on the burner, and a light hole is formed in the center of the fire cover and the burner running through from top to bottom; and

[0011] A photoelectric detector is used to be electrically connected to a signal processor. The photoelectric detector is installed on the burner and can sense infrared radiation energy generated by the bottom of the pot through the light hole.

[0012] The burner described in this application has the following beneficial effects compared with the background technology:

[0013] When the burner is in use, the photoelectric detector can sense the infrared radiation energy generated by the bottom of the pot through the light hole, and convert it into an electrical signal to send to the signal processor. The signal processor calculates the temperature of the bottom of the pot according to the electrical signal, and the temperature detection accuracy is high. In addition, compared with the temperature detection method of directly contacting the bottom of the pot in the related art, the degree of interference by the flame is small, the temperature detection accuracy is improved, and it is not easy to be damaged; in addition, compared with the temperature detection method of the photoelectric detector in the related art, since the photoelectric detector in this embodiment is directly installed on the burner, the photoelectric detector and the signal processor are set separately, which can effectively protect the signal processor (which cannot withstand high temperature) while making the photoelectric detector as close to the bottom of the pot as possible. In other words, the distance between the photoelectric detector and the bottom of the pot is shortened, so that the diameter of the light hole can be reduced, and there is no need to design a larger burner, which saves materials and reduces costs.

[0014] In one of the embodiments, the burner further comprises a light-transmitting element disposed at the light-through hole; the light-transmitting element is in sealing cooperation with the fire cover.

[0015] In one embodiment, the light-transmitting element is titanium crystal glass or crystal diamond glass.

[0016] In one of the embodiments, the burner further comprises a bracket mounted on the burner head, and the photoelectric detector is mounted on the bracket.

[0017] In one of the embodiments, the bracket is located below the furnace head; the detection part of the photoelectric detector is located directly below the light through hole and directly facing the light through hole.

[0018] In one embodiment, the photoelectric detector is located on one side of the extension direction of the light through hole, and the burner also includes a reflective element connected to the burner head and located in the extension direction of the light through hole, the reflective surface of the reflective element is set at an angle to the extension direction of the light through hole, and the reflective element is used to reflect the infrared radiation energy of the bottom of the pot to the photoelectric detector.

[0019] In one embodiment, the reflective element is a concave lens or a reflector; and / or, a first protrusion and a second protrusion are provided on the bottom surface of the furnace head, the bracket is installed on the first protrusion, and the reflective element is installed on the second protrusion.

[0020] The above second technical problem is solved by the following technical solution:

[0021] A gas stove comprises the burner and a signal processor, wherein the photoelectric detector is electrically connected to the signal processor.

[0022] The gas stove described in this application has the following beneficial effects compared with the background technology:

[0023] When the above-mentioned gas stove is in use, the photoelectric detector can sense the infrared radiation energy generated by the bottom of the pot through the light hole, and convert it into an electrical signal to send to the signal processor. The signal processor calculates the temperature of the bottom of the pot according to the electrical signal, and the temperature detection accuracy is high. In addition, compared with the temperature detection method of directly contacting the bottom of the pot in the related art, the degree of interference by the flame is small, the temperature detection accuracy is improved, and it is not easy to be damaged; in addition, compared with the temperature detection method of the photoelectric detector in the related art, since the photoelectric detector in this embodiment is directly installed on the burner, the photoelectric detector and the signal processor are set separately, which can effectively protect the signal processor while making the photoelectric detector as close to the bottom of the pot as possible. In other words, the distance between the photoelectric detector and the bottom of the pot is shortened, so that the diameter size of the light hole can be reduced, and there is no need to design a larger burner, which saves materials and reduces costs.

[0024] In one embodiment, the gas stove further includes a bottom shell, the signal processor is arranged inside the bottom shell, and the burner is connected to the bottom shell.

[0025] In one embodiment, the gas stove also includes a main control board and a gas proportional valve; the main control board is electrically connected to the signal processor and the gas proportional valve respectively, and the main control board can control and adjust the opening of the gas proportional valve according to the pot bottom temperature detected by the signal processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] FIG. 1 is a structural diagram of a burner according to an embodiment of the present application.

[0029] FIG. 2 is a structural diagram of a burner according to another embodiment of the present application.

[0030] Reference numerals:

[0031] 10. Burner head; 11. First protrusion; 12. Second protrusion; 20. Fire cover; 201. Center fire cover; 202. Outer ring fire cover; 21. Light hole; 22. Concave portion; 30. Photoelectric detector; 40. Signal processor; 50. Cooking utensil; 60. Light-transmitting element; 70. Bracket; 71. Fastener; 80. Reflective element. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] Referring to FIG. 1 , FIG. 1 shows a structural diagram of a burner according to an embodiment of the present application. An embodiment of the present application provides a burner, which includes a burner head 10, a fire cover 20, and a photoelectric detector 30. The fire cover 20 is mounted on the burner head 10, and a light hole 21 penetrating from top to bottom is formed in the center of the fire cover 20 and the burner head 10. The photoelectric detector 30 is used to be electrically connected to the signal processor 40. The photoelectric detector 30 is mounted on the burner head 10, and the photoelectric detector 30 can sense the infrared radiation energy generated by the bottom of the cooker 50 through the light hole 21.

[0034] When the burner is in use, the photoelectric detector 30 can sense the infrared radiation energy generated by the bottom of the pot through the light hole 21, and convert it into an electrical signal and send it to the signal processor 40. The signal processor 40 calculates the temperature of the bottom of the pot according to the electrical signal, and the temperature detection accuracy is high. In addition, compared with the temperature detection method of directly contacting the bottom of the pot in the related art, the degree of interference by the flame is small, the temperature detection accuracy is improved, and it is not easy to be damaged; in addition, compared with the temperature detection method of the photoelectric detector 30 in the related art, since the photoelectric detector 30 in this embodiment is directly installed on the burner 10, the photoelectric detector 30 and the signal processor 40 are separately arranged, which can effectively protect the signal processor 40 (which cannot withstand high temperature) and make the photoelectric detector 30 as close to the bottom of the pot as possible. In other words, the distance between the photoelectric detector 30 and the bottom of the pot is shortened, so that the diameter of the light hole 21 can be reduced, and there is no need to design a burner 10 with a larger size, which saves materials and reduces costs.

[0035] 1 , in some embodiments, the fire cover 20 includes a central fire cover 201 and an outer ring fire cover 202 disposed circumferentially around the central fire cover 201. The light hole 21 specifically passes through the central fire cover 201 up and down, for example.

[0036] Please refer to FIG. 1 . In one embodiment, the burner further includes a light-transmitting element 60 disposed at the light-through hole 21. The light-transmitting element 60 is sealed with the fire cover 20. In this way, on the one hand, the light-transmitting element 60 can block foreign matter, and can effectively prevent foreign matter from falling through the light-through hole 21 into the photoelectric detector 30 below and reducing the performance of the photoelectric detector 30. Foreign matter falling onto the surface of the light-transmitting element 60 can be easily cleaned and removed, and the light-transmitting element 60 can be replaced and maintained in time according to actual needs. On the other hand, when in use, the infrared radiation energy generated by the bottom of the pot can normally pass through the light-transmitting element 60 and be sensed by the photoelectric detector 30, and will not affect the detection work of the photoelectric detector 30.

[0037] When the light-transmitting element 60 is sealed with the light-through hole 21 , it can better prevent foreign matter from falling down through the light-through hole 21 onto the photodetector 30 .

[0038] In some embodiments, the light-transmitting element 60 includes but is not limited to a convex lens, a concave lens, a light-transmitting plate, etc., as long as it is made of a light-transmitting material that allows infrared radiation energy to pass through.

[0039] Please refer to FIG. 1 , in some embodiments, a recess 22 adapted to the light-transmitting element 60 is formed on the upper surface of the fire cover 20, and a light-through hole 21 passes through the bottom wall of the recess 22. The light-transmitting element 60 is stably installed in the recess 22 and seals the light-through hole 21. In addition, the upper surface of the light-transmitting element 60 is flush with the upper surface of the fire cover 20, so that the light-transmitting element 60 can be easily cleaned.

[0040] In one embodiment, the light-transmitting element 60 includes but is not limited to titanium crystal glass or crystal diamond glass. In this way, the light-transmitting element 60 can withstand high temperatures and transmit light at the same time.

[0041] Referring to Fig. 1, in one embodiment, the burner further comprises a bracket 70 mounted on the burner head 10. The photoelectric detector 30 is mounted on the bracket 70. Thus, under the support of the bracket 70, not only the photoelectric detector 30 is stably mounted on the burner head 10, but also the photoelectric detector 30 can be installed at a suitable position to receive infrared radiation energy.

[0042] In some embodiments, the bracket 70 is fixed on the furnace head 10 by fasteners 71 including but not limited to pins, rivets, screws, bolts, etc.

[0043] In some embodiments, the "bracket 70" can be "a part of the burner head 10", that is, the "bracket 70" is manufactured integrally with the "other parts of the burner head 10"; it can also be an independent component separable from the "other parts of the burner head 10", that is, the "bracket 70" can be manufactured independently and then combined with the "other parts of the burner head 10" into a whole.

[0044] Please refer to FIG. 1 , in some embodiments, the bracket 70 is located below the stove head 10. In addition, the detection part of the photoelectric detector 30 can be located directly below the light hole 21 and directly opposite the light hole 21. In this way, when in use, the infrared radiation energy generated by the bottom of the pot can directly enter the detection part of the photoelectric detector 30 through the light hole 21, so that the photoelectric detector 30 can sense the infrared radiation energy of the bottom of the pot.

[0045] Please refer to FIG. 2 . In some embodiments, the detection portion of the photodetector 30 may be located on one side of the extension direction of the light hole 21. In other words, it does not need to be directly opposite the light hole 21. This can better protect the photodetector 30. Specifically, the burner further includes a reflective element 80 connected to the burner head 10 and located in the extension direction of the light hole 21. The reflective surface of the reflective element 80 is arranged at an angle to the extension direction of the light hole 21. The reflective element 80 is used to reflect the infrared radiation energy of the bottom of the pot to the photodetector 30. In this way, when in use, the infrared radiation energy generated by the bottom of the pot is incident on the reflective element 80 through the light hole 21, and is reflected to the photodetector 30 by the reflective element 80. The photodetector 30 can also detect the magnitude of the infrared radiation energy of the bottom of the pot.

[0046] In one embodiment, the reflective element 80 includes but is not limited to a concave lens or a reflector.

[0047] In one embodiment, a first protrusion 11 and a second protrusion 12 are disposed on the bottom surface of the furnace head 10 , the bracket 70 is mounted on the first protrusion 11 , and the reflective element 80 is mounted on the second protrusion 12 .

[0048] In some embodiments, the second protrusion 12 is provided with a mounting groove 121 located directly below the light-through hole 21. The shape of the mounting groove 121 is adapted to the shape of the reflective element 80, so that the reflective element 80 can be stably mounted and fixed.

[0049] In some embodiments, the photodetector 30 can be fixed to the bracket 70 by bonding, clamping or welding; or it can be fixed to the bracket 70 by adding a protective cover and connecting parts such as screws, pins, and rivets.

[0050] In one embodiment, a gas stove includes a burner according to any one of the above embodiments, and further includes a signal processor 40 , wherein the photoelectric detector 30 is electrically connected to the signal processor 40 .

[0051] When the above-mentioned gas stove is in use, the photoelectric detector 30 can sense the infrared radiation energy generated by the bottom of the pot through the light hole 21, and convert it into an electrical signal to send to the signal processor 40. The signal processor 40 calculates the temperature of the bottom of the pot according to the electrical signal, and the temperature detection accuracy is high. In addition, compared with the temperature detection method of directly contacting the bottom of the pot in the related art, the degree of interference by the flame is small, the temperature detection accuracy is improved, and it is not easy to be damaged; in addition, compared with the temperature detection method of the photoelectric detector 30 in the related art, since the photoelectric detector 30 in this embodiment is directly installed on the burner 10, the photoelectric detector 30 and the signal processor 40 are set separately, which can effectively protect the signal processor 40 (which cannot withstand high temperature) and make the photoelectric detector 30 as close to the bottom of the pot as possible. In other words, the distance between the photoelectric detector 30 and the bottom of the pot is shortened, so that the diameter size of the light hole 21 can be reduced, and then there is no need to design a burner 10 with a larger size, which plays a role in saving materials and reducing costs.

[0052] In one embodiment, the gas stove further includes a bottom shell. The signal processor 40 is disposed inside the bottom shell, and the burner is connected to the bottom shell. In this way, the signal processor 40 and the photodetector 30 are respectively arranged on the bottom shell and the burner 10, and the two are separately arranged. In this way, the signal processor 40 that cannot withstand high temperatures is relatively far away from the burner 10, which can reduce the adverse effects of the high temperature environment in the burner 10 area on the signal processor 40, that is, the performance of the signal processor 40 can be improved.

[0053] In one embodiment, the gas stove further comprises a main control panel and a gas proportional valve. The main control panel is electrically connected to the signal processor 40 and the gas proportional valve respectively, and the main control panel can control and adjust the opening of the gas proportional valve according to the pot bottom temperature detected by the signal processor 40.

[0054] Specifically, during operation, when the fire cover 20 is ignited to heat the drinking utensils, when the drinking utensils reach a certain temperature, they will emit infrared radiation energy to the surroundings, and the infrared energy is focused on the photodetector 30 and converted into a corresponding electrical signal. The signal is transmitted to the signal processor 40, passes through the amplifier and the signal processing circuit, and is converted into the temperature value of the drinking utensils after correction according to the internal algorithm and the target emissivity. The temperature value signal is transmitted to the main control board, and the main control board can compare the temperature value with the preset dry-burning value. When the temperature value exceeds the preset value, the gas proportional valve is controlled to be closed to realize the anti-dry-burning function.

[0055] In addition, the main control panel can also compare the temperature value with the temperature value of the cooking method set by the user on the main control panel (such as soup, stew, pan-fry, deep-fry, etc.) to control the opening of the gas proportional valve and adjust the firepower accordingly to achieve constant temperature to the temperature required for various cooking; or adjust the firepower according to the temperature and time required for cooking of various recipes preset in the main control panel to achieve better cooking results and realize intelligent cooking.

[0056] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0057] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0059] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A burner, characterized in that: The burner comprises: Burner head (10); A fire cover (20), the fire cover (20) being mounted on the burner head (10), and a light hole (21) penetrating from top to bottom is formed in the center of the fire cover (20) and the burner head (10); and A photoelectric detector (30), the photoelectric detector (30) being used to be electrically connected to a signal processor (40), the photoelectric detector (30) being mounted on the stove head (10), and the photoelectric detector (30) being able to sense infrared radiation energy generated by the bottom of the pot through the light hole (21).

2. The burner according to claim 1, characterized in that The burner further comprises a light-transmitting element (60) arranged at the light-through hole (21); the light-transmitting element (60) is in sealing cooperation with the fire cover (20).

3. The burner according to claim 2, characterized in that: The light-transmitting element (60) is titanium crystal glass or crystal diamond glass.

4. The burner according to claim 1, characterized in that The burner further comprises a bracket (70) mounted on the burner head (10), and the photoelectric detector (30) is mounted on the bracket (70).

5. The burner according to claim 4, characterized in that The bracket (70) is located below the furnace head (10); and the detection part of the photoelectric detector (30) is located directly below the light through hole (21) and directly facing the light through hole (21).

6. The burner according to claim 4, characterized in that The photoelectric detector (30) is located on one side of the extension direction of the light through hole (21); the burner further comprises a reflective element (80) connected to the burner head (10) and located in the extension direction of the light through hole (21); a reflective surface of the reflective element (80) is arranged at an angle to the extension direction of the light through hole (21); and the reflective element (80) is used to reflect infrared radiation energy from the bottom of the pot to the photoelectric detector (30).

7. The burner according to claim 6, characterized in that The reflective element (80) is a concave lens or a reflector; and / or, the bottom surface of the furnace head (10) is provided with a first protrusion (11) and a second protrusion (12), the bracket (70) is mounted on the first protrusion (11), and the reflective element (80) is mounted on the second protrusion (12).

8. A gas stove, characterized in that: The gas stove comprises the burner according to any one of claims 1 to 7, and further comprises a signal processor (40), and the photoelectric detector (30) is electrically connected to the signal processor (40).

9. The gas stove according to claim 8, characterized in that: The gas stove further comprises a bottom shell, the signal processor (40) is arranged inside the bottom shell, and the burner is connected to the bottom shell.

10. The gas stove according to claim 8, characterized in that: The gas stove also includes a main control panel and a gas proportional valve; the main control panel is electrically connected to the signal processor (40) and the gas proportional valve respectively, and the main control panel can control and adjust the opening of the gas proportional valve according to the pot bottom temperature detected by the signal processor (40).

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