Integrated cooker capable of accurately sensing entry of flame into flue
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG MEIDA IND CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-19
AI Technical Summary
Existing integrated cooktops cannot accurately detect flames entering the flue, leading to fan damage and safety hazards, and the temperature sensor has a limited detection range.
A heat-conducting pipe and a temperature sensor are installed inside the flue. The heat-conducting pipe is close to the top of the flue near the smoke inlet chamber. It is used to absorb the heat of the flame and transfer it to the temperature sensor to ensure that the sensor accurately detects the flame entering.
It enables accurate detection of flames entering the flue with only one temperature sensor, improving safety and avoiding fan damage and safety hazards.
Smart Images

Figure CN224381612U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of integrated stoves, and in particular to an integrated stove that can accurately detect the entry of flames into the flue. Background Technology
[0002] The existing integrated cooktop structure includes a main body with a flue inside, housing a fan. A cooktop is formed on top of the main body, with cooktops including burners. A smoke inlet chamber is located behind the burner on the top of the cooktop, its bottom connecting to the flue. Current temperature sensors are typically located below the burner and inside the control panel. When the temperature is too high, the temperature sensor shuts off the burner. However, during use, when the flame is too high, it can extend into the smoke inlet chamber and flue under the suction of the fan. At this point, the temperature sensors below the burner and inside the control panel cannot detect it, potentially damaging the fan and posing a safety hazard. Furthermore, temperature sensors are small and have a limited detection range. Integrated cooktops may have two or three burners, and only one or two may be used at a time. The flame may also flicker as it enters the smoke inlet chamber and flue, preventing the temperature sensor from detecting it. Therefore, a single temperature sensor is needed to accurately detect the flame entering the flue. Summary of the Invention
[0003] The purpose of this invention is to provide an integrated stove that can accurately detect flames entering the flue. Only one temperature sensor is needed to accurately detect the flames entering the flue, thereby improving the safety of use.
[0004] To achieve this objective, the present invention adopts the following technical solution: an integrated stove that can accurately sense the flame entering the flue, comprising an integrated stove body, a flue formed within the integrated stove body, and a fan installed within the flue; a stove platform is formed on the top of the integrated stove body, and a stove is installed on the stove platform, the stove including a burner, a smoke inlet chamber located behind the burner on the stove platform, the bottom of the smoke inlet chamber being connected to the flue, a sensing structure for sensing the temperature of oil fumes is provided within the flue, the temperature sensing structure being connected to the burner, the sensing structure including a heat-conducting pipe and a temperature sensor disposed within the heat-conducting pipe, the temperature sensor being close to the inner wall of the heat-conducting pipe, the heat-conducting pipe being horizontally disposed at the top of the flue near the smoke inlet chamber, the heat-conducting pipe being detachably connected to the integrated stove body, and the temperature sensor being detachably connected within the heat-conducting pipe. The heat pipes of this product are horizontally positioned at the top of the flue near the smoke inlet chamber. There are heat pipes throughout the smoke inlet chamber, from left to right. All flames entering the flue will come into contact with the heat pipes. Because the flame temperature is higher than the oil fume temperature, the heat pipes have excellent heat conduction properties. When the flame contacts the heat pipe, it heats up rapidly, transmitting the flame temperature to the temperature sensor. The temperature sensor can then accurately detect the flame entering the flue and shut off the burner. This means that even if only one burner is on in a two-burner or three-burner stove, or if the flame flickers, it will not affect the temperature sensor's ability to detect the flame entering the flue. Furthermore, only one temperature sensor is needed to accurately detect the flame entering the flue, improving safety during use.
[0005] Furthermore, heat-insulating sleeves are pressed tightly onto the exterior of both ends of the heat-conducting pipe, and these heat-insulating sleeves are installed on the integrated stove body. These heat-insulating sleeves provide insulation, thereby preventing the heat-conducting pipe from transferring heat to the integrated stove body.
[0006] Furthermore, a mounting block is provided on each of the left and right sides inside the flue, and an insertion recess is provided in the middle of the end of the mounting blocks that are close to each other; the two ends of the heat insulation fixing sleeve are respectively inserted into the two insertion recesses, and the heat insulation fixing sleeve is connected to the mounting block by the first fastener. This design can facilitate the installation and removal of the heat conduction pipe, and can also ensure that the heat conduction pipe is installed in the center of the air duct, which is convenient for flame detection.
[0007] The beneficial effects of this invention are as follows: This product can absorb the heat of all flames entering the air duct through the heat-conducting pipe and transfer it to the temperature sensor; no matter from which position or angle the flame enters the air duct, the heat-conducting pipe absorbs the heat of the flame; this product only requires one temperature sensor to accurately detect the flames entering the flue, thus improving the safety of use. Attached Figure Description
[0008] Figure 1 This is a perspective view of the present utility model;
[0009] Figure 2 This is a cross-sectional view of the present invention;
[0010] Figure 3 This is a top view of the present invention;
[0011] Figure 4 This is a partial structural schematic diagram of the present invention;
[0012] Figure 5 This is a partially enlarged view of the present invention;
[0013] Figure 6 This is a partially enlarged view of the present invention;
[0014] The integrated stove body 1; flue 2; mounting block 21; fan 3; heat insulation fixing sleeve 4; first fastener 41; sensing structure 5; heat conduction pipe 51; temperature sensor 52; first screw 53. Detailed Implementation
[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the invention and not all structures. In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.
[0016] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0017] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.
[0018] like Figure 1-6 As shown, an integrated stove capable of accurately sensing flame entry into the flue includes an integrated stove body 1, within which a flue 2 is formed. A fan 3 is installed within the flue 1, and the flue 2 is connected to an exhaust pipe. A cooktop is formed on the top of the integrated stove body 1, and a cooktop is mounted on the cooktop, including a burner. This cooktop can be a single-burner, double-burner, or triple-burner cooktop, etc. A smoke inlet chamber is located behind the burner on the cooktop. This smoke inlet chamber is detachably installed on the integrated stove body 1. A smoke inlet port is located at the upper front of the smoke inlet chamber, and the bottom of the smoke inlet chamber connects to the flue 2. This structure is similar to existing integrated stove structures, such as the T9Pro-A integrated stove produced by our company.
[0019] The improvement lies in the induction structure 5 within the flue 2, which can sense the temperature of the oil fumes. Specifically, the induction structure 5 includes a heat-conducting pipe 51 and a temperature sensor 52. The temperature sensor 52 can be an existing product, such as the WZP01 / pt100 high-temperature resistant sensor. The temperature sensor 52 is located inside the heat-conducting pipe 51, and is in close contact with the inner wall of the heat-conducting pipe 51, thereby ensuring that the probe of the temperature sensor can fully sense the temperature changes of the heat-conducting pipe 51.
[0020] The temperature sensor 52 is detachably connected to the heat pipe 51. That is, the probe of the temperature sensor is inserted from one end of the heat pipe 51, the temperature sensor 52 is close to the inner top wall of the heat pipe 51, the inner bottom wall of the heat pipe 51 is provided with a first hole, and a first screw 53 is threaded into the first hole. The first screw 53 presses the probe against the inner top wall of the heat pipe 51.
[0021] Furthermore, the heat-conducting pipe 51 is horizontally positioned at the top of the flue 2 near the smoke inlet chamber. Since the smoke inlet chamber is detachably installed on the integrated stove body 1, this location facilitates the disassembly, assembly, and cleaning of the heat-conducting pipe 51. The heat-conducting pipe 51 is detachably connected to the integrated stove body 1. Specifically, both ends of the heat-conducting pipe 51 are tightly fitted with heat-insulating fixing sleeves 4. These heat-insulating fixing sleeves are rectangular and have a sleeve structure. The heat-insulating fixing sleeves 4 are installed on the integrated stove body 1. The heat-conducting pipe 51 extends along the left-right direction inside the flue 2, and can be designed such that the left end of the heat-conducting pipe 51 is inserted into the left side wall of the flue 2, and the right end of the heat-conducting pipe 51 is inserted into the right side wall of the flue 2.
[0022] However, in this embodiment, a mounting block 21 is provided on each of the left and right sides inside the flue 2. The mounting block 21 is rectangular and is fixed to the flue 2 by a third screw. That is, the front side of the mounting block 21 presses against the front side wall of the flue 2, and the rear side of the mounting block 21 presses against the rear side wall of the flue 2. The middle of the two ends of the mounting blocks 21 that are close to each other is provided with a C-shaped insertion recess. The two ends of the heat insulation fixing sleeve 4 are respectively inserted into the two insertion recesses. The heat insulation fixing sleeve 4 is connected to the mounting block 21 by a first fastener 41, which is also a screw. That is, the top of the heat insulation fixing sleeve 4 is provided with a horizontal surface, which is close to the upper surface of the mounting block 21. The first fastener 41 passes through the horizontal surface and connects to the mounting block 21.
[0023] Taking a dual-burner integrated stove as an example, during use, one burner is turned on, and the fan 3 is started. The fan 3 draws the fumes into the smoke inlet chamber, then into the air duct 2, and finally out through the exhaust pipe. During this process, as the flame grows larger, it is drawn into the smoke inlet chamber along with the fumes and then into the air duct 2. The flame comes into contact with the heat-conducting pipe 51. Because the flame temperature is higher than the fume temperature, the heat-conducting pipe 51 absorbs the heat from the flame and then conducts it to the temperature sensor 52. When the temperature reaches the threshold of the temperature sensor 52, such as 150℃, which exceeds the normal temperature of the fumes, the temperature sensor will control the burner to shut off, thus ensuring safe use. Of course, the process is the same whether two or more burners are turned on. Regardless of the flame's orientation when entering the air duct—such as shaking or twisting—it will always come into contact with the heat-conducting pipe, ensuring safe use.
[0024] The temperature sensor can be connected to the burner alone to shut it off at high temperatures, or it can be connected to both the burner and the fan to shut them off at high temperatures. It can also be connected to an alarm or indicator light to sound an alarm and illuminate the indicator light when the burner is shut off. This part of the structure can be designed as needed and is not a necessary structure. Existing products can be used for the alarm and indicator light.
[0025] This product is mainly used to detect flames entering the flue. However, it can also detect the temperature of cooking fumes. The principle is the same: whether it is a single-burner, double-burner, or triple-burner stove, even if only one burner is turned on, it can accurately sense the temperature of the cooking fumes and shut off the burner when the temperature is too high, thus improving the safety of use.
[0026] The threshold temperature set for the temperature sensor can be designed according to requirements.
[0027] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. An integrated stove capable of accurately sensing flame entry into the flue, comprising an integrated stove body (1), a flue (2) formed within the integrated stove body (1), and a fan (3) provided within the flue (2); a stove platform is formed on the top of the integrated stove body (1), and a stove is provided on the stove platform, the stove including a burner, a smoke inlet chamber located behind the burner on the stove platform, the bottom of the smoke inlet chamber being connected to the flue (2), and a sensing structure (5) capable of sensing the temperature of the oil fumes being provided within the flue (2), the temperature sensing structure (5) being connected to the burner, characterized in that: The sensing structure (5) includes a heat-conducting pipe (51) and a temperature sensor (52) disposed inside the heat-conducting pipe (51). The temperature sensor (52) is attached to the inner wall of the heat-conducting pipe (51). The heat-conducting pipe (51) is horizontally disposed at the top of the flue (2) near the smoke inlet chamber. The heat-conducting pipe (51) is detachably connected to the integrated stove body (1). The temperature sensor (52) is detachably connected inside the heat-conducting pipe (51).
2. The integrated cooker of claim 1, wherein: Both ends of the heat pipe (51) are fitted with heat insulation fixing sleeves (4), which are installed on the integrated stove body (1).
3. The integrated stove with accurate flame detection capability according to claim 2, characterized in that: An installation block (21) is provided on each of the left and right sides of the flue (2). An insertion recess is provided in the middle of the end of the installation block (21) that is close to each other. The two ends of the heat insulation fixing sleeve (4) are respectively inserted into the two insertion recesses. The heat insulation fixing sleeve (4) is connected to the installation block (21) by the first fastener (41).