Improved temperature control probe and kitchen range with improved temperature control probe

Abstract

The utility model relates to an improved temperature control probe and a stove applying the improved temperature control probe, the improved temperature control probe comprises a shell, a heat collection plate, a first temperature sensor and a second temperature sensor, the heat collection plate is provided with a heat collection face located on the outer side of the shell and configured to make contact with an external heat source and a heat conduction face located on the inner side of the shell, the first temperature sensor and the second temperature sensor are different types of temperature sensors, and the temperature collection ends are located in a cavity of the shell and arranged on the heat conduction face of the heat collection plate. Therefore, the temperature on the heat conduction surface of the heat collection plate can be respectively collected by using various types of temperature sensors, the temperature of an external heat source contacted with the heat collection surface of the heat collection plate can be measured and controlled by using the temperature curve characteristics of different types of temperature sensors, and the problem that the temperature measurement and control precision of a single type of temperature sensor is not high is avoided; and the accuracy of temperature measurement and control is improved.

Description

Technical Field

[0001] The utility model relates to the field of temperature sensing detection, in particular to an improved temperature control probe and a cooker using the improved temperature control probe. Background Art

[0002] The temperature control probe is the core component of the anti-dry burn stove. Most of the existing stove temperature control probes use an NTC (Negative Temperature Coefficient, thermistor ceramic component) as a temperature sensor for anti-dry burn measurement and control. Of course, some temperature measurement and control methods also increase the number of NTCs to improve the temperature sensing and measurement and control accuracy.

[0003] However, the existing temperature measurement and control methods for stoves have shortcomings: the use of a single NTC to measure and control the temperature has insufficient measurement accuracy, which increases the misjudgment rate of dry burning prevention; the method of measuring and controlling the temperature by simply increasing the number of NTCs has high measurement and control costs, and because the same type of NTCs are used, the temperature change curves of the same type of NTCs are similar, and the advantages of the temperature change differences of different NTCs cannot be fully utilized, resulting in a low cost-effectiveness of the measured temperature. Utility Model Content

[0004] The first technical problem to be solved by the utility model is to provide an improved temperature control probe which can improve the temperature measurement and control accuracy and reduce the measurement cost in view of the above-mentioned prior art.

[0005] The second technical problem to be solved by the utility model is to provide a cooker using the above improved temperature control probe.

[0006] The technical solution adopted by the utility model to solve the first technical problem is: an improved temperature control probe includes a shell forming a cavity, characterized in that it also includes:

[0007] A heat collecting plate is arranged at the upper end of the shell, and the heat collecting plate has a heat collecting surface located outside the shell and configured to contact an external heat source and a heat conducting surface located inside the shell;

[0008] A first temperature sensor having a first temperature acquisition end and a first temperature data output end, wherein the first temperature acquisition end is located in the cavity of the housing and is arranged on the heat conduction surface of the heat collecting plate;

[0009] A second temperature sensor has a second temperature acquisition end and a second temperature data output end, the second temperature acquisition end is located in the cavity of the housing and is arranged on the heat conduction surface of the heat collecting plate;

[0010] The first temperature sensor and the second temperature sensor are temperature sensors of different types.

[0011] Improved, in the utility model, the improved temperature control probe also includes an insulating space, which is arranged on the heat conduction surface of the heat collecting plate, and the first temperature collection end of the first temperature sensor and the second temperature collection end of the second temperature sensor are arranged in the insulating space.

[0012] Furthermore, in the improved temperature control probe, the heat-insulating space is formed by a plurality of heat-insulating layers, and each heat-insulating layer is formed on the heat-conducting surface of the heat collecting plate.

[0013] Further improvement, in the utility model, the improved temperature control probe also includes an elastic member elastically compressed in the shell cavity, the elastic member is sleeved on the outside of the first temperature sensor and the second temperature sensor, the first end of the elastic member abuts against the heat conduction surface of the heat collecting plate, and the second end of the elastic member abuts against the lower end of the shell.

[0014] Furthermore, in the improved temperature control probe, a gap is formed between the multiple heat insulation layers, and the first end of the elastic member is arranged in the gap.

[0015] Improved, in the utility model, the improved temperature control probe also includes a fixing rod forming a hollow cavity, the first end of the fixing rod abuts against the second end of the elastic member and is movably arranged in the cavity of the shell, and the second end of the fixing rod is located on the outside of the shell; wherein the hollow cavity of the fixing rod is connected to the cavity of the shell, and the first temperature data output end of the first temperature sensor and the second temperature data output end of the second temperature sensor both pass through the shell cavity and the hollow cavity of the fixing rod in sequence.

[0016] As a further improvement, in the utility model, the improved temperature control probe further includes at least one third temperature sensor, and the third temperature sensor, the first temperature sensor and the second temperature sensor are all temperature sensors of different types.

[0017] Improved, in the utility model, the improved temperature control probe also includes at least one third temperature sensor; wherein the third temperature sensor and the first temperature sensor are temperature sensors of the same type; or, the third temperature sensor and the second temperature sensor are temperature sensors of the same type.

[0018] As a further improvement, in the improved temperature control probe, the first temperature sensor is an NTC temperature sensor, and the second temperature sensor is a thermal couple temperature sensor.

[0019] The technical solution adopted by the utility model to solve the second technical problem is: a stove, characterized in that it uses any one of the improved temperature control probes described above.

[0020] Compared with the prior art, the advantages of the utility model are as follows: in the improved temperature control probe of the utility model, the temperature control probe has an outer shell forming a cavity, and different types of first temperature sensors and second temperature sensors are arranged in the outer shell cavity, and a heat collecting plate is arranged at the upper end of the outer shell, and the heat collecting plate has a heat collecting surface located outside the outer shell and a heat conducting surface located inside the outer shell, and the temperature collection end of each temperature sensor is arranged on the heat conducting surface of the heat collecting plate. In this way, the temperature on the heat conducting surface of the heat collecting plate can be collected respectively by using various types of temperature sensors, and the temperature curve characteristics of different types of temperature sensors can be used to measure and control the temperature of the heat collecting surface of the heat collecting plate in contact with the external heat source, thereby avoiding the problem of low temperature accuracy measured and controlled by a single type of temperature sensor, and improving the accuracy of temperature measurement and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an improved temperature control probe in an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A cross-sectional view of the improved temperature control probe structure is shown. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] This embodiment provides an improved temperature control probe. Figure 1 and Figure 2 As shown, the improved temperature control probe of this embodiment includes a housing 1, a heat collecting plate 2, a first temperature sensor 3 and a second temperature sensor 4. The housing 1 forms a cavity 10. The heat collecting plate 2 is arranged at the upper end of the housing 1. The heat collecting plate 2 has a heat collecting surface 21 located outside the housing 1 and configured to contact an external heat source, and a heat conducting surface 22 located inside the housing; for example, the external heat source here is the bottom surface of a pot on a stove; the first temperature sensor 3 has a first temperature acquisition terminal 31 and a first temperature data output terminal, the first temperature acquisition terminal 31 is located in the cavity 10 of the housing 1 and is arranged on the heat conducting surface 22 of the heat collecting plate 2; the second temperature sensor 4 has a second temperature acquisition terminal 41 and a second temperature data output terminal, the second temperature acquisition terminal 41 is located in the cavity 10 of the housing 1 and is arranged on the heat conducting surface 22 of the heat collecting plate 2; wherein the first temperature sensor 3 and the second temperature sensor 4 here are different types of temperature sensors. For example, in this embodiment, the first temperature sensor 3 is an NTC temperature sensor, and the second temperature sensor 4 is a thermal couple temperature sensor.

[0025] In the improved temperature control probe of this embodiment, different types of first temperature sensors and second temperature sensors are arranged in the shell cavity, and the temperature acquisition end of each temperature sensor is arranged on the heat conduction surface of the heat collector. In this way, the temperature on the heat conduction surface of the heat collector can be respectively acquired by using various types of temperature sensors, and the temperature curve characteristics of different types of temperature sensors can be used to measure and control the temperature of the heat collector surface in contact with the external heat source, thereby avoiding the problem of low temperature accuracy measured by a single type of temperature sensor and improving the accuracy of temperature measurement and control.

[0026] In order to reduce the adverse effect of external heat on the temperatures collected by the first temperature sensor and the second temperature sensor, the improved temperature control probe of this embodiment also includes an insulating space C, which is arranged on the heat conduction surface 22 of the heat collecting plate 2, and the first temperature collection end 31 of the first temperature sensor 3 and the second temperature collection end 41 of the second temperature sensor 4 are arranged in the insulating space C.

[0027] Of course, as a formation method of the above-mentioned heat insulation space, in this embodiment, the heat insulation space C is formed by a plurality of heat insulation layers 23, and each heat insulation layer 23 is formed on the heat conduction surface 22 of the heat collecting plate 2. By providing the heat insulation layer, the adverse effect of the surrounding thermal environment temperature on the temperature measurement accuracy of each temperature sensor can be reduced, thereby improving the temperature measurement accuracy.

[0028] In order to further reduce heat transfer and improve the heat insulation effect, the improved temperature control probe of this embodiment also includes an elastic member 5 elastically compressed in the cavity 10 of the shell 1, the elastic member 5 is sleeved on the outside of the first temperature sensor 3 and the second temperature sensor 4, the first end of the elastic member 5 abuts against the heat conduction surface 22 of the heat collecting plate 2, and the second end of the elastic member 5 abuts against the lower end of the shell 1. For example, the elastic member 5 here adopts a spring. Specifically, a gap C1 is formed between the multiple heat insulation layers 23 of this embodiment, and the first end of the elastic member 5 is arranged in the gap C1.

[0029] In addition, the improved temperature control probe of this embodiment also includes a fixing rod 6 forming a hollow cavity 60, the first end of the fixing rod 6 abuts against the second end of the elastic member 5 and is movably arranged in the cavity 10 of the outer shell 1, and the second end of the fixing rod 6 is located on the outside of the outer shell 1; wherein, the hollow cavity 60 of the fixing rod 6 is connected to the cavity 10 of the outer shell 1, and the first temperature data output end of the first temperature sensor 3 and the second temperature data output end of the second temperature sensor 4 both pass through the outer shell cavity 10 and the hollow cavity 60 of the fixing rod 6 in sequence.

[0030] In order to further improve the accuracy of temperature measurement and control, according to actual needs, the improved temperature control probe of this embodiment also includes at least one third temperature sensor, and the third temperature sensor, the first temperature sensor and the second temperature sensor are all different types of temperature sensors. In this way, the temperature characteristics of multiple different types of temperature sensors can be used to measure and control the temperature of the external heat source contacted by the heat collecting surface of the heat collecting plate, greatly improving the accuracy of temperature measurement and control. Of course, according to the temperature curve characteristics of different types of temperature sensors used by the improved temperature control probe, the recognition effect of different types of pots on the stove can also be achieved.

[0031] Of course, according to actual needs, the improved temperature control probe of this embodiment can also include at least one third temperature sensor; wherein the third temperature sensor and the first temperature sensor are temperature sensors of the same type; or, the third temperature sensor and the second temperature sensor are temperature sensors of the same type.

[0032] In the improved temperature control probe of this embodiment, the outer shell adopts a single-layer structure, which is simpler in structure and lower in cost.

[0033] This embodiment also provides a stove, wherein the stove is applied with the above-mentioned improved temperature control probe.

[0034] Although the preferred embodiments of the present invention are described in detail above, it should be clearly understood that the present invention may be modified and varied by those skilled in the art. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An improved temperature control probe, comprising a housing (1) forming a cavity (10), characterized in that: Also includes: A heat collecting plate (2) is arranged at the upper end of the outer shell (1), the heat collecting plate (2) comprising a heat collecting surface (21) located outside the outer shell (1) and configured to contact an external heat source, and a heat conducting surface (22) located inside the outer shell; A first temperature sensor (3) having a first temperature acquisition end (31) and a first temperature data output end (32), wherein the first temperature acquisition end (31) is located in the cavity (10) of the housing (1) and is arranged on the heat conduction surface (22) of the heat collecting plate (2); A second temperature sensor (4) having a second temperature acquisition end (41) and a second temperature data output end (42), wherein the second temperature acquisition end (41) is located in the cavity (10) of the housing (1) and is arranged on the heat conduction surface (22) of the heat collecting plate (2); The first temperature sensor (3) and the second temperature sensor (4) are temperature sensors of different types.

2. The improved temperature control probe according to claim 1, characterized in that: It also includes a heat-insulating space (C) disposed on the heat-conducting surface (22) of the heat collecting plate (2), and a first temperature collecting end (31) of the first temperature sensor (3) and a second temperature collecting end (41) of the second temperature sensor (4) are disposed in the heat-insulating space.

3. The improved temperature control probe according to claim 2, characterized in that: The heat-insulating space (C) is formed by a plurality of heat-insulating layers (23), and each heat-insulating layer (23) is formed on the heat-conducting surface (22) of the heat-collecting plate (2).

4. The improved temperature control probe according to claim 3, characterized in that: It also includes an elastic member (5) elastically compressed in the cavity (10) of the outer shell (1), the elastic member (5) being sleeved on the outer sides of the first temperature sensor (3) and the second temperature sensor (4), the first end of the elastic member (5) abutting against the heat conduction surface (22) of the heat collecting plate (2), and the second end of the elastic member (5) abutting against the lower end of the outer shell (1).

5. The improved temperature control probe according to claim 4, characterized in that: A gap (C1) is formed between the plurality of heat insulation layers (23), and the first end of the elastic member (5) is arranged in the gap (C1).

6. The improved temperature control probe according to claim 4, characterized in that: It also includes a fixing rod (6) forming a hollow cavity (60), wherein the first end of the fixing rod (6) abuts against the second end of the elastic member (5) and is movably arranged in the cavity (10) of the shell (1), and the second end of the fixing rod (6) is located outside the shell (1); wherein the hollow cavity (60) of the fixing rod (6) is connected to the cavity (10) of the shell (1), and the first temperature data output end of the first temperature sensor (3) and the second temperature data output end of the second temperature sensor (4) both pass through the shell cavity (10) and the hollow cavity (60) of the fixing rod (6) in sequence.

7. The improved temperature control probe according to any one of claims 1 to 6, characterized in that: It also includes at least one third temperature sensor, which is a temperature sensor of a different type from the first temperature sensor and the second temperature sensor.

8. The improved temperature control probe according to any one of claims 1 to 6, characterized in that: It also includes at least one third temperature sensor; wherein the third temperature sensor and the first temperature sensor are temperature sensors of the same type; or, the third temperature sensor and the second temperature sensor are temperature sensors of the same type.

9. The improved temperature control probe according to any one of claims 1 to 6, characterized in that: The first temperature sensor (3) is an NTC temperature sensor, and the second temperature sensor (4) is a thermal couple temperature sensor.

10. A cooking appliance, characterized in that: The improved temperature control probe according to any one of claims 1 to 9 is used.

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