Split Sensor for Cooking Appliances

Abstract

The utility model provides a split sensor for a cooking appliance, comprising a housing and a heat preservation cover located in the housing, and also comprising a sensor assembly located in the heat preservation cover and facing the cooking cavity and protruding from the inner wall of the heat preservation cover. The sensor assembly is arranged through the heat preservation cover, and when it contacts the cooking cavity, it moves downward under the gravity, triggering a micro switch, and controlling the sensor assembly to start measuring the cooking cavity. The utility model utilizes the gap between the heat preservation cover and the housing to add a micro switch, and then utilizes the gravity of the cooking cavity to actively trigger the sensor assembly to measure, and is arranged close to the cooking cavity, so that food can be measured more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of assembling a sensor in a cooking appliance, in particular to a split sensor used for a cooking appliance. Background Art

[0002] With the development of economy and the progress of society, energy conservation has become inevitable and a social consensus. Various electrical appliances are increasingly developing in the direction of energy saving, easy use, space saving, safety and efficiency, and multi-functionality. Electric pressure cookers, as an important member of people's daily electrical appliances, are no exception. The bottom sensor in a common electric pressure cooker is a very important component. In the prior art, in order to facilitate the measurement of the temperature of the cooking cavity, the sensor is generally either set on the side or a fixed assembly component is added separately at the bottom. In this way, the sensor and the touch switch are basically in the same cavity, which is easily triggered by mistake and has high requirements for the assembly space. Utility Model Content

[0003] The purpose of the utility model is to provide a split sensor for cooking appliances, which respectively arranges a sensor component and a micro switch in different cavities, and can accurately touch and measure through automatic triggering of the gravity of the cooking cavity. It not only has low requirements for assembly space and high versatility, but also can more accurately measure the cooking cavity in contact with it, and has simple assembly and low cost.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0005] A split sensor for a cooking appliance comprises a shell and a heat-insulating cover located inside the shell, and also comprises a sensor component located inside the heat-insulating cover and facing the cooking cavity and protruding from the inner wall of the heat-insulating cover. The sensor component is arranged through the heat-insulating cover. When it contacts the cooking cavity, it moves downward due to gravity, triggers a micro switch, and controls the sensor component to start measuring the cooking cavity.

[0006] Furthermore, it also includes a connecting rod arranged through the heat preservation cover, the sensor assembly is fixed to one end of the connecting rod close to the cooking cavity, and the other end of the connecting rod is forced to approach and trigger the micro switch.

[0007] Furthermore, it also includes a heating plate assembled in the heat-insulating cover, the heating plate is provided with a through hole for the connecting rod to pass through, and the sensor assembly is located above the heating plate.

[0008] Furthermore, the connecting rod outer sleeve is provided with a reset component located between the heating plate and the heat-insulating cover, and the reset component is fixed on the heat-insulating cover and / or the heating plate.

[0009] Furthermore, the heat preservation cover is located away from the sensor assembly and forms an assembly cavity for assembling the micro switch from the center position toward the housing.

[0010] Furthermore, the assembly cavity is recessed away from the cooking cavity to form a stepped groove, and the aperture of the groove near the perforation is the smallest.

[0011] Furthermore, the heat-insulating cover at least protrudes from the step-shaped groove toward the edge of the heat-insulating cover to form two supporting parts.

[0012] Furthermore, it also includes a micro switch bracket, one end of which is fixed in the step-shaped groove, and the other side forms a clamping cavity, in which the micro switch is partially fixed. Furthermore, the micro switch is provided with a raised abutment portion upward.

[0013] Furthermore, the sensor component is a temperature sensor, and the detection head of the temperature sensor is arranged in close contact with the outer wall of the cooking cavity.

[0014] The beneficial effects of the utility model are as follows:

[0015] In the utility model, the sensor is used as a split structure, so that the sensor component and the micro switch are respectively arranged in different cavities, thereby reducing the requirement for assembly space, making it more adaptable and having a wider application.

[0016] In the utility model, the gravity of the cooking cavity is fully utilized, such as the inner pot constituting the cooking cavity, and generally once heating starts, temperature detection is started at this time, which reduces the increase of control buttons, etc., has low cost and simple assembly.

[0017] In the utility model, the linkage of the connecting rod is utilized so that the micro switch and the farther sensor assembly can be triggered. The length of the connecting rod can be adjusted according to the distance. The whole structure is simple, and an assembly cavity is specially provided for the bracket of the micro switch, so that the stability is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the structural schematic diagrams of the split sensor for cooking utensils provided by the utility model;

[0019] Figure 2 The second structural schematic diagram of the split sensor for cooking utensils provided by the utility model;

[0020] Figure 3 A schematic diagram of the structure of the sensor assembly provided by the utility model;

[0021] Figure 4 A schematic diagram of the structure of the micro switch provided by the utility model;

[0022] Figure 5 A schematic diagram of the structure of the micro switch bracket provided by the utility model;

[0023] Figure 6 A schematic diagram of the structure of the connecting rod provided by the utility model;

[0024] In the figure:

[0025] 100, housing; 200, heat preservation cover; 210, assembly cavity; 220, stepped groove; 230, support portion; 300, sensor assembly; 400, cooking cavity; 500, micro switch; 510, abutment portion; 520, terminal; 600, connecting rod; 610, reset assembly; 620, assembly plate; 700, heating plate; 710, perforation; 800, micro switch bracket; 810, clamping cavity. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0027] See attached Figure 1-6 As shown, the split sensor for cooking utensils in this embodiment comprises a housing 100 and a heat preservation cover 200 located in the housing 100. The sensor assembly 300 in this embodiment is located in the heat preservation cover 200 and is arranged toward the cooking cavity 400. At the same time, when it is idle, it protrudes from the inner wall of the heat preservation cover 200. When it is in use, the sensor assembly 300 is forced to move downward and contact the cooking cavity 400. In this process, the sensor assembly 300 is forced to move downward by the gravity of the cooking cavity 400, triggering the micro switch 500 to control the sensor assembly 300 to start the measurement of the cooking cavity 400. In this embodiment, by using this structure, while realizing the split structure and reducing the assembly space, the overall measurement start efficiency is improved, and there is no need to add a button separately or start through the setting program of the control component, etc. The start control is simple, the overall structure assembly is also simple, and the cost is reduced.

[0028] The following is an introduction based on the specific assembly structure components.

[0029] First, the connecting rod 600 will be described.

[0030] In this embodiment, in order to ensure the connection between the sensor assembly and the micro switch, a connecting rod 600 is specially provided. The length of the connecting rod 600 is adjusted according to the distance between the sensor assembly 300 and the micro switch 500, so that it can be applied to various types of cooking utensils. At this time, the connecting rod 600 passes through the heat preservation cover 200 and is then fixedly connected to the sensor assembly 300. In the process of the sensor assembly 300 being subjected to force, it will approach and trigger the micro switch 500. Under normal circumstances, it is far away from the micro switch 500. Figure 6 As shown, the connecting rod in this embodiment has a gasket at the bottom and an assembly plate at the top. The connecting rod 600 passes through the assembly plate 620, and then assembly holes are provided on both sides of the assembly plate 620 for fixing the connecting rod 600 on the sensor assembly 300.

[0031] In order to measure the temperature more accurately, in this embodiment, a heating plate 700 is provided on the heat preservation cover 200. At this time, a through hole 710 for the connecting rod 600 to pass through is provided on the heating plate 700, and the sensor assembly 300 is located above the heating plate 700. At this time, the measuring sensor assembly 300 is located between the cooking cavity 400 and the heating plate 700, so that the measured temperature is more accurate.

[0032] Furthermore, in order to ensure the reset after the force is applied, the connecting rod 600 is provided with a reset assembly 610 located between the heating plate 700 and the heat preservation cover 200, and the reset assembly 610 is fixed on the heat preservation cover 200 and / or the heating plate 700. At this time, the reset assembly 610 actually only needs to be fixed at one end. Of course, if both ends are fixed, the reset effect is better, and then it can be fixed only to the heating plate, or only to the heat preservation cover, and the two ends can be connected to the heating plate and the heat preservation cover respectively. Then, during the movement of the connecting rod, the spring is compressed, and after the force is applied, the reset assembly composed of the spring causes the connecting rod to reset upward, and the sensor assembly is again located above the heating plate 700 and keeps a distance from it.

[0033] Secondly, the assembly of the entire micro switch is introduced as follows:

[0034] In order to reduce the excessive assembly space occupied, in this embodiment, an assembly cavity 210 for assembling the micro switch 500 can be formed on the side of the heat preservation cover 200 away from the sensor assembly 300, from the center position toward the housing 100. At this time, it can be directly assembled into the assembly cavity 210 without occupying too much space.

[0035] Furthermore, in order to form a better assembly space, in this embodiment, the assembly cavity 210 can be recessed in the direction away from the cooking cavity 400 to form a stepped groove 220, and the groove aperture is the smallest near the through hole 710. In this case, the groove is provided to prevent the heat preservation cover from being deformed under pressure after the pressure cooker is pressurized. Furthermore, the groove is used to provide a basis for the assembly of the micro switch and the like in the later stage. In this case, the stepped groove 220 actually protrudes toward the cooking cavity 400, and the reset component 610 can be fixedly positioned so that it has a certain support and fixing point, which is convenient for its upward reset after compression in the later stage.

[0036] In actual use, the heat preservation cover 200 specifically protrudes from the stepped groove 220 toward the edge of the heat preservation cover 200 to form at least two support portions 230. At this time, the two support portions 230 are used for support in the subsequent assembly of the inner cover or heating component, so that the contact assembly with the heat preservation cover is more firm.

[0037] In order to fix the micro switch 500, a micro switch bracket 800 is also included, and the bottom of the micro switch bracket 800 is fixed in the stepped groove. Specifically, the bracket is formed with a certain support cavity, which has a certain elasticity and support force, and is convenient for bearing force.

[0038] In this embodiment, refer to the attached Figure 1-2 As shown in FIG. 5 , one end of the micro switch bracket 800 is fixed in the stepped groove 220, and the other side forms a clamping cavity 810, and the micro switch 500 is partially fixed in the clamping cavity 810. In this embodiment, the two sides of the clamping cavity 810 form protection for the micro switch 500, so that the housing of the micro switch is clamped and protected.

[0039] See attached Figure 1-2 As shown in FIG. 4 , the micro switch 500 is provided with a raised abutment portion 510 upward. Then, terminals 520 are provided at the bottom of the micro switch 500 and at a position away from the abutment portion 510, respectively, and the terminals are used to energize cables and the like so that the micro switch can be used normally.

[0040] In actual use, the bottom of the connecting rod 600 is controlled by abutting against the abutting portion 510, and at this time, the abutting portion 510 protrudes into the clamping cavity and is only partially exposed, which is safer to use and compact in space.

[0041] Further, the micro switch bracket 800 is equipped with the micro switch 500 on the side away from the stepped groove, and the micro switch 500 is suspended between the housing 100 and the heat preservation cover 200. The suspended setting allows it to contact with cables and the like at different positions, and can also be assembled in more spatial positions.

[0042] In actual use, the sensor assembly 300 is a temperature sensor, and the detection head of the temperature sensor is arranged in close contact with the outer wall of the cooking cavity 400.

[0043] The principles of the assembly and use process in this embodiment are as follows:

[0044] The present embodiment is used in cooking appliances such as electric rice cookers, which contain a cooking cavity composed of an outer shell, a heat preservation cover and an inner pot, and the purpose is to use an NTC sensor to measure the temperature of the cooking cavity. During assembly, the outer shell and the heat preservation cover are fixedly assembled to form a space, and then a micro switch, a micro switch bracket and cables can be assembled into the space, and then the heating plate is located in the accommodating cavity formed by the heat preservation cover, and then the cooking appliance is arranged above the heating plate. During use, the connecting rod linked to the sensor assembly moves downward when subjected to an external force from the cooking appliance, and then contacts the micro switch bracket or the micro switch to energize it, thereby achieving measurement, and such an assembly process is simple, low cost and good measurement effect.

[0045] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A split sensor for a cooking appliance, comprising a housing and a heat preservation cover located inside the housing, characterized in that: It also includes a sensor component located in the heat preservation cover, facing the cooking cavity and protruding from the inner wall of the heat preservation cover. The sensor component is arranged through the heat preservation cover. When it contacts the cooking cavity, it moves downward due to gravity, triggering a micro switch, and controlling the sensor component to start measuring the cooking cavity.

2. The split sensor for cooking appliances according to claim 1, characterized in that: It also includes a connecting rod that passes through the heat preservation cover. The sensor assembly is fixed to one end of the connecting rod close to the cooking cavity, and the other end of the connecting rod is forced to approach and trigger the micro switch.

3. The split sensor for cooking appliances according to claim 2, characterized in that: It also includes a heating plate installed in the heat-insulating cover, the heating plate is provided with a through hole for the connecting rod to pass through, and the sensor assembly is located above the heating plate.

4. The split sensor for cooking appliances according to claim 3, characterized in that: The connecting rod outer sleeve is provided with a reset component located between the heating plate and the heat-insulating cover, and the reset component is fixed on the heat-insulating cover and / or the heating plate.

5. The split sensor for cooking appliances according to claim 1, characterized in that: The heat preservation cover is away from the sensor assembly and forms an assembly cavity for assembling the micro switch from the center position toward the shell.

6. The split sensor for cooking appliances according to claim 5, characterized in that: The assembly cavity is recessed away from the cooking cavity to form a step-shaped groove, and the aperture of the groove near the perforation is the smallest.

7. The split sensor for cooking appliances according to claim 6, characterized in that: The heat-insulating cover at least protrudes from the step-shaped groove toward the edge of the heat-insulating cover to form two supporting parts.

8. The split sensor for cooking appliances according to claim 6, characterized in that: It also includes a micro switch bracket, one end of which is fixed in the step-shaped groove, and the other side forms a clamping cavity, and the micro switch part is fixed in the clamping cavity.

9. The split sensor for cooking appliances according to claim 8, characterized in that: The micro switch is provided with a raised abutment portion facing upward.

10. The split sensor for cooking appliances according to claim 1, characterized in that: The sensor component is a temperature sensor, and the detection head of the temperature sensor is arranged in close contact with the outer wall of the cooking cavity.

Images