CN215838429U - Top temperature sensor and have its cooking device - Google Patents

Abstract

The utility model discloses a top temperature sensor and a cooking appliance with the same. Wherein, top temperature sensor includes: the top of the shell is open, and a flange is arranged on the outer side of the top; the pipeline assembly comprises a lead, a thermistor and a protective sleeve, wherein the thermistor is connected in series on the lead, and the protective sleeve is sleeved on the lead and enables the thermistor to be positioned on the inner side of the protective sleeve; the heat-conducting glue layer is filled between the inner walls of the protecting sleeve and the shell, wherein the distance between the bottom edge of the protecting sleeve and the bottom edge of the inner cavity of the shell is set to be L1, L1 is larger than or equal to 3mm, the distance between the outer side wall of the protecting sleeve and the corresponding inner side wall of the shell is set to be L2, and L2 is larger than or equal to 1.8 mm. According to the structure, the protective sleeve is insulated by the first layer, the heat-conducting adhesive layer is insulated by the second layer, and the heat-conducting adhesive layer has enough insulation thickness, so that the top temperature sensor disclosed by the utility model can have enough insulation performance, has a good insulation and isolation effect, meets the safety requirements, does not need to be specially provided with a ground wire, and simplifies the structure.

Description

Top temperature sensor and have its cooking device

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a top temperature sensor and a cooking appliance with the same.

Background

Some current cooking appliances, for example electric rice cooker, electric pressure cooker etc. need set up temperature sensor at its top, through temperature sensor collection, the temperature of conveying when cooking, the main control module of being convenient for controls the culinary art process. Some current temperature sensor, its insulating isolation effect is not good, and when cooking the food material, because the probability that high humid environment takes place the electric leakage is great relatively, in order to improve the security in order to satisfy the safety regulation requirement, these temperature sensor need dispose the ground wire. However, the arrangement of the wires complicates the structure of the temperature sensor, increases the production cost, and reduces the assembly efficiency of the cooking appliance by requiring an additional wiring step when the temperature sensor is assembled to the cooking appliance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve at least one technical problem in the prior art, and provides a top temperature sensor which has a good insulation and isolation effect.

The utility model also provides a cooking appliance with the temperature sensor.

According to a first aspect of the present invention, there is provided a top temperature sensor comprising: the top of the shell is open, and a flange is arranged on the outer side of the top; the pipeline assembly is arranged in a U shape and inserted into the shell, and comprises a lead, a thermistor and a protective sleeve, wherein the thermistor is connected in series on the lead, and the protective sleeve is sleeved on the lead and enables the thermistor to be positioned on the inner side of the protective sleeve; the heat-conducting glue layer is filled between the inner walls of the protecting sleeve and the shell, wherein the distance between the bottom edge of the protecting sleeve and the bottom edge of the inner cavity of the shell is set to be L1, L1 is larger than or equal to 3mm, the distance between the outer side wall of the protecting sleeve and the corresponding inner side wall of the shell is set to be L2, and L2 is larger than or equal to 1.8 mm.

According to some embodiments, L2 ≧ 2 mm.

According to some embodiments, the wire is divided into two sections, the thermistor is located between the two sections of wire, copper clips are arranged between two ends of the thermistor and the wire, and the end of the wire and the end of the thermistor are inserted into the corresponding copper clips.

According to some embodiments, the thermistor has a temperature sensing portion, the temperature sensing portion and the two copper clips are arranged in a triangle.

According to some embodiments, an end of the line assembly remote from the housing is provided with a coupling.

According to some embodiments, the sheathing tube is provided in two or more layers.

According to a second aspect of the present invention, there is provided a cooking appliance comprising a top temperature sensor as described above.

Has the advantages that: according to the structure, the protective sleeve is insulated by the first layer, the heat-conducting adhesive layer is insulated by the second layer, and the heat-conducting adhesive layer has enough insulation thickness, so that the top temperature sensor disclosed by the utility model can have enough insulation performance, has a good insulation and isolation effect, meets the safety requirements, does not need to be specially provided with a ground wire, and simplifies the structure.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a cross-sectional view of an embodiment of a top temperature sensor of the present invention;

FIG. 2 is a schematic diagram of a positioning element and a housing according to another embodiment of the top temperature sensor of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of 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 thus, should not be construed as limiting the present invention.

In the description of the present invention, greater than, less than, exceeding, etc. are understood as excluding the present numbers, and the above, below, inside, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, the top temperature sensor includes a housing 10, a pipe assembly 20 and a heat conductive adhesive layer 30, the top of the housing 10 is open, and a rib 11 is disposed on the outside of the top of the housing 10, the rib 11 being used for connecting a cooking appliance. The pipeline assembly 20 is configured in a U shape and inserted into the housing 10, the pipeline assembly 20 includes a lead 21, a thermistor 22 and a sheathing tube 23, the thermistor 22 is connected in series to the lead 21, and the sheathing tube 23 is sheathed on the lead 21 such that the thermistor 22 is positioned inside the sheathing tube 23. The heat-conducting glue layer 30 is filled between the protecting sleeve 23 and the inner wall of the shell 10, wherein the distance between the bottom edge of the protecting sleeve 23 and the bottom edge of the inner cavity of the shell 10 is set to be L1, L1 is larger than or equal to 3mm, the distance between the outer side wall of the protecting sleeve 23 and the corresponding inner side wall of the shell 10 is set to be L2, L2 is larger than or equal to 1.8mm, and correspondingly, the corresponding position of the heat-conducting glue layer 30 also has corresponding thickness. The sheath tube 23 may be made of silica gel.

During production, the pipeline assembly 20 is inserted into the housing 10 after being assembled, glue is injected into the housing 10, and the heat-conducting glue layer 30 is formed after the glue is cured, so that the pipeline assembly 20 can be fixed by the heat-conducting glue layer 30 to limit the position deviation caused by shaking. According to the structure, the protective sleeve 23 is insulated by the first layer, the heat-conducting adhesive layer 30 is insulated by the second layer, and the heat-conducting adhesive layer 30 has enough insulation thickness, so that the top temperature sensor disclosed by the utility model can have enough insulation performance, has a good insulation and isolation effect, meets the safety requirements, does not need to be specially provided with a ground wire, and simplifies the structure.

As one preferable scheme, the distance between the outer side wall of the protecting sleeve 23 and the corresponding inner side wall of the shell 10 can be set to be L2 being more than or equal to 2 mm.

In the present embodiment, the wire 21 is divided into two segments, the thermistor 22 is located between the two segments of the wire 21, copper clips 24 are disposed between both ends of the thermistor 22 and the wire 21, and the end of the wire 21 and the end of the thermistor 22 are inserted into the corresponding copper clips 24. During production, the end of the thermistor 22 and the end of the lead 21 are inserted into the copper clamp 24, then the copper clamp 24 is pressed to deform the copper clamp, and the end of the thermistor 22 and the end of the lead 21 are fixedly connected to the copper clamp 24, so that series connection between the lead 21 and the thermistor 22 is convenient. Further, the thermistor 22 has a temperature sensing part 221, and the temperature sensing part 221 and the two copper clips 24 are arranged in a triangular shape.

The end of the line assembly 20 remote from the housing 10 is provided with a connector 41 for connecting the electrical circuit of the cooking appliance.

In some embodiments, the sheath tubes 23 are provided in two or more layers, and the two or more layers of sheath tubes 23 may be sequentially sleeved on the thermistor 22 from inside to outside to improve the insulating property of the top temperature sensor.

A protective sleeve 42 is sleeved on the pipeline assembly 20, and the bottom of the protective sleeve 42 extends to the top opening of the casing 10.

Referring to fig. 2, in some embodiments, a positioning member 50 is disposed at an opening of the housing 10, the positioning member 50 includes a protective cover 51, the protective cover 51 is inserted into the opening of the housing 10 and is adapted to the opening of the housing 10, the protective cover 51 has two first line holes 511 and two or more glue injection holes 512, a connecting column 52 is connected to the bottom of the protective cover 51, a mounting cover 53 is fixedly disposed at the bottom of the connecting column 52, the width of the mounting cover 53 is smaller than the width of an inner cavity of the housing 10, and two second line holes 531 are disposed on the mounting cover 53, the second line holes 531 are aligned with the first line holes 511 up and down, a heat-shrinkable sleeve 54 is disposed in the second line holes 531, and the heat-shrinkable sleeve 54 extends downward to protrude the second line holes 531. During assembly, the lead 21 penetrates through the heat-shrinkable sleeve 54, the second line hole 531 and the first line hole 511, then the part of the heat-shrinkable sleeve 54 extending out of the second line hole 531 is heated, the heat-shrinkable sleeve 54 is tightly attached to the lead 21, then the pipeline assembly 20 and the protective cover 51 are inserted into the shell 10, glue injection operation is performed through one glue injection hole 512, and the rest glue injection holes 512 are used for exhausting air so that glue is filled in the inner cavity of the shell 10. Through this structure, protecting cover 51 and shell 10 adaptation, can not take place the sideslip after protecting cover 51 inserts shell 10 promptly, can fix a position pipeline subassembly 20 when protecting cover 51 inserts shell 10, avoid pipeline subassembly 20's position to take place the skew, make and keep suitable distance between pipeline subassembly 20 and the shell 10, ensure that heat-conducting glue layer 30 has sufficient thickness to realize insulating, can not keep the relative position between pipeline subassembly 20 and the shell 10 with complicated positioning device before the injecting glue, can reduce production facility's cost.

In particular, heat shrink 54 may be adhesively attached to mounting cap 53. The protective cover 51 and the connecting column 52 can be integrally formed, or the connecting column 52 is inserted into the protective cover 51. In addition, instead of the glue injection hole 512, more than two notches may be provided on the side edge of the protective cover 51.

The utility model also provides a cooking appliance comprising a top temperature sensor as described above. The cooking electric appliance can be a rice cooker, an electric pressure cooker and the like. The cooking appliance has a cover body, the housing 10 is inserted into the cover body, and the rib 11 on the housing 10 is connected with the cover body.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (7)

1. A top temperature sensor, comprising:

the top of the shell (10) is open, and a flange (11) is arranged on the outer side of the top;

the pipeline assembly (20) is arranged in a U shape, is inserted into the shell (10) and comprises a lead (21), a thermistor (22) and a protective sleeve (23), the thermistor (22) is connected in series on the lead (21), and the protective sleeve (23) is sleeved on the lead (21) and enables the thermistor (22) to be positioned on the inner side of the protective sleeve (23);

and the heat-conducting glue layer (30) is filled between the inner walls of the protecting sleeve (23) and the shell (10), wherein the distance between the bottom edge of the protecting sleeve (23) and the bottom edge of the inner cavity of the shell (10) is set to be L1, L1 is larger than or equal to 3mm, the distance between the outer side wall of the protecting sleeve (23) and the corresponding inner side wall of the shell (10) is set to be L2, and L2 is larger than or equal to 1.8 mm.

2. The top temperature sensor of claim 1, wherein L2 is 2mm or more.

3. The top temperature sensor according to claim 1, wherein the wire (21) is divided into two sections, the thermistor (22) is located between the two sections of wire (21), and copper clips (24) are provided between both ends of the thermistor (22) and the wire (21), and the end of the wire (21) and the end of the thermistor (22) are inserted into the corresponding copper clips (24).

4. A top temperature sensor according to claim 3, wherein the thermistor (22) has a temperature sensing part (221), the temperature sensing part (221) and the two copper clips (24) being arranged in a triangle.

5. A top temperature sensor according to claim 1, wherein the end of the line assembly (20) remote from the housing (10) is provided with a fitting (41).

6. The top temperature sensor according to claim 1, wherein the sheathing tube (23) is provided in two or more layers.

7. Cooking appliance, characterized in that it comprises a top temperature sensor according to any of claims 1 to 6.

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