Insulation temperature sensor

Abstract

The utility model belongs to the technical field of sensors, and particularly provides an insulating temperature sensor, which comprises a ceramic base, a thermistor and a lead. The ceramic base comprises a ceramic shell and a ceramic induction piece arranged at the top of the ceramic shell; the thermistor is arranged in the ceramic shell; one end of the lead is connected with a pin of the thermistor, and the other end of the lead extends out of the ceramic shell; and a fixing assembly connected with external equipment is arranged on the ceramic shell. The insulation temperature sensor provided by the utility model is packaged by the ceramic base, is high in insulation, can meet the matching application requirements of different induction cooker panels in the market, and solves the problems that the conventional induction cooker panel is high in insulation strength requirement, high in price cost and low in position consistency.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensors, and in particular relates to an insulating temperature sensor. Background Art

[0002] The principle of induction cooker is electromagnetic induction phenomenon, that is, using alternating current to pass through the coil to generate an alternating magnetic field with a constantly changing direction. Eddy current will appear inside the conductor in the alternating magnetic field. This is because the eddy electric field drives the carriers in the conductor to move; the Joule heating effect of the eddy current causes the conductor to heat up, thereby achieving heating. In the prior art, the temperature sensor of the induction cooker is generally installed under the induction cooker panel.

[0003] The electrical strength of induction cooker panels is different, and the material cost varies greatly; however, under the trend of cost reduction, different electrical strengths of panels require temperature sensors with different insulation strength performance to meet the electrical strength requirements of safety regulations. To this end, this application provides an insulated temperature sensor that can meet the supporting application needs of induction cooker panels on the market, and is equipped with an elastic fixing so that the temperature sensor body can be in full contact with the induction cooker panel, and the temperature measurement consistency is higher. Utility Model Content

[0004] The utility model aims to provide a temperature sensor with a wide application range and capable of meeting the application requirements of matching induction cooker panels with different electrical strengths.

[0005] To this end, the utility model provides an insulating temperature sensor, including a ceramic base, a thermistor and a wire; the ceramic base includes a ceramic shell and a ceramic induction piece arranged on the top of the ceramic shell; the thermistor is installed in the ceramic shell; one end of the wire is connected to the pin of the thermistor, and the other end extends to the outside of the ceramic shell; the ceramic shell is provided with a fixing component connected to an external device.

[0006] Specifically, the fixing assembly comprises a shell; the shell is wrapped outside the ceramic shell; and a fixing piece connected to an external device is provided on the shell.

[0007] Specifically, the above-mentioned fixing member includes a first clip plate and a second clip plate; the first clip plate and the second clip plate are both provided with a through hole matching the outer diameter of the shell; the first clip plate and the second clip plate are sleeved on the outside of the shell through their respective through holes, and a preset distance is maintained between the bottom surface of the first clip plate and the top surface of the second clip plate.

[0008] Specifically, the housing, the first clamping plate and the second clamping plate are an integrally formed structure.

[0009] Specifically, the shell is an elastic shell; the elastic shell is clamped on the outside of the ceramic shell.

[0010] Specifically, the above-mentioned insulating temperature sensor also includes a connector; one end of the wire away from the thermistor is crimped to the connector.

[0011] Specifically, the thermistor is encapsulated in the ceramic housing through an insulating adhesive layer.

[0012] Specifically, the above-mentioned wire is wrapped with an insulating sheath.

[0013] Specifically, the ceramic sensor is a circular ceramic plate; the ceramic shell is a hollow ceramic cylinder with a diameter smaller than that of the circular ceramic plate; the bottom surface of the circular ceramic plate is fixedly connected to the top surface of the ceramic cylinder; and the thermistor is installed in the ceramic cylinder.

[0014] Specifically, the ceramic sensor and the ceramic housing are an integrally formed structure.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] The insulated temperature sensor provided by the utility model is packaged by a ceramic base, has high insulation, and can meet the supporting application requirements of different induction cooker panels on the market, so as to solve the problems of high insulation strength requirements, high price costs, and low position consistency of existing induction cooker panels. In addition, the ceramic base is connected to the fixed component so that the sensing surface of the insulated temperature sensor can be fully in contact with the induction cooker panel with the cooperation of the fixed component, thereby improving the sensing stability. The thermistor packaging material is a high-temperature insulating glue, which can meet the structural and electrical insulation performance requirements under high temperature conditions.

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the insulating temperature sensor provided by the utility model.

[0019] Figure 2 It is an exploded schematic diagram of the insulating temperature sensor provided by the utility model.

[0020] Figure 3 The utility model is a schematic diagram of the structure of a ceramic base of an insulating temperature sensor.

[0021] Figure 4 It is a structural schematic diagram of a fixing assembly of an insulating temperature sensor provided by the utility model.

[0022] Explanation of the reference numerals: 1. Ceramic base; 101. Ceramic sensor; 102. Ceramic shell; 2. Fixing assembly; 201. Shell; 202. First clip-on plate; 203. Second clip-on plate; 3. Thermistor; 4. Wire; 5. Connector. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0026] Reference Figure 1-4 The utility model provides an insulated temperature sensor, including a ceramic base 1, a thermistor 3 and a wire 4; the ceramic base 1 includes a ceramic shell 102 and a ceramic induction piece 101 arranged on the top of the ceramic shell 102; the thermistor 3 is installed in the ceramic shell 102; one end of the wire 4 is connected to the pin of the thermistor 3, and the other end extends to the outside of the ceramic shell 102, and the wire 4 is preferably wrapped with an insulating sleeve; the ceramic shell 102 is provided with a fixing component 2 connected to an external device. When in use, the insulated temperature sensor is installed on a device that needs to monitor the temperature, such as an induction cooker, through the fixing component 2, so that the ceramic induction piece 101 is in contact with the panel of the induction cooker. The ceramic induction piece 101 transmits the temperature of the induction cooker panel to the thermistor 3 in the ceramic shell 102, and the temperature of the induction cooker panel is monitored in real time.

[0027] Furthermore, the fixing assembly 2 includes a housing 201; the housing 201 is wrapped around the ceramic housing 102; the housing 201 is provided with a fixing member connected to an external device; the wire 4 extends outside the housing 201. The fixing assembly 2 can be fixed on the induction cooker, and the ceramic housing 102 as the temperature sensor body is also fixed therein, so that the ceramic induction member 101 is completely in contact with the induction cooker panel.

[0028] The fixing member may be a device such as a buckle or a clamp that can realize a fixed connection between two structures. Specifically, the fixing member includes a first clamping plate 202 and a second clamping plate 203; the first clamping plate 202 and the second clamping plate 203 are both provided with through holes that match the outer diameter of the shell 201; the first clamping plate 202 and the second clamping plate 203 are sleeved on the outside of the shell 201 through their respective through holes, and a preset distance is maintained between the bottom surface of the first clamping plate 202 and the top surface of the second clamping plate 203. A protrusion that matches the space formed between the bottom surface of the first clamping plate 202 and the top surface of the second clamping plate 203 is provided at the reserved temperature sensor position on the induction cooker, and the fixed installation of the shell 201 and the induction cooker is realized by clamping the protrusion between the first clamping plate 202 and the second clamping plate 203.

[0029] Preferably, the housing 201, the first clamping plate 202 and the second clamping plate 203 are an integrally formed structure, thereby improving the strength and stability of the fixing assembly 2 itself.

[0030] Furthermore, the housing 201 is an elastic housing; the elastic housing is wrapped around the outside of the ceramic housing 102 by interference fit, ensuring that the ceramic housing 102 does not loosen after installation and that the ceramic sensor 101 is in stable contact with the panel.

[0031] In a detailed implementation, the insulated temperature sensor further includes a connector 5; one end of the wire 4 away from the thermistor 3 is crimped to the connector 5. During installation, the thermistor 3 is connected to one end of the wire 4 through a high temperature process, and the other end of the wire 4 is crimped and fixed to the connector 5 and then connected to other devices through the connector 5.

[0032] Furthermore, the thermistor 3 is encapsulated in the ceramic housing 102 through an insulating adhesive layer. The insulating adhesive layer is preferably a high-temperature insulating adhesive. After the thermistor 3 is connected to the wire 4, the thermistor 3 is placed in the ceramic housing 102, and the insulating adhesive is poured into the ceramic housing 102 for filling and encapsulation. While meeting the structural strength requirements of the induction cooker under high temperature conditions, the electrical insulation performance under high temperature conditions is excellent.

[0033] In a detailed implementation, the ceramic sensor 101 is a circular ceramic plate; the ceramic shell 102 is a hollow ceramic cylinder with a diameter smaller than that of the circular ceramic plate; the bottom surface of the circular ceramic plate is fixedly connected to the top surface of the hollow ceramic cylinder; the thermistor 3 is installed in the hollow ceramic cylinder.

[0034] Preferably, the ceramic sensor 101 and the ceramic housing 102 are an integrally formed structure.

[0035] In an optimized implementation, the utility model provides an insulating temperature sensor, including a ceramic base 1, a fixing component 2, a thermistor 3, a wire 4 and a connector 5.

[0036] The ceramic base 1 includes an integrally formed ceramic sensor 101 and a ceramic shell 102; the ceramic sensor 101 is a circular ceramic plate, and the ceramic shell 102 is a hollow ceramic cylinder with a diameter smaller than the circular ceramic plate. The bottom surface of the circular ceramic plate is fixedly connected to the top surface of the ceramic cylinder, and the two are coaxial, forming a ceramic base 1 with a T-shaped cross-section.

[0037] The thermistor 3 is connected to one end of the wire 4 through a high temperature process, and the other end of the wire 4 is crimped and fixed to the connector 5. The wire 4 is covered with an insulating sleeve.

[0038] The thermistor 3 is installed in the hollow cavity of the ceramic housing 102, and high-temperature insulating glue is poured into it to form an insulating glue layer to encapsulate the thermistor 3 in the ceramic housing 102, and the wire 4 and the connector 5 extend out of the housing.

[0039] The fixing assembly 2 includes an integrally formed elastic shell, a first clip plate 202 and a second clip plate 203; the elastic shell is sleeved on the outside of the ceramic shell 102 by interference fit, and the ceramic shell 102 is fastened and wrapped in the elastic shell; the first clip plate 202 and the second clip plate 203 are both provided with through holes matching the outer diameter of the elastic shell; the first clip plate 202 and the second clip plate 203 are sleeved on the outside of the elastic shell through their respective through holes; a preset distance is maintained between the bottom surface of the first clip plate 202 and the top surface of the second clip plate 203.

[0040] In actual use, a protrusion matching the space formed between the first clamping plate 202 and the second clamping plate 203 is preset at the installation position of the temperature sensor of the induction cooker, and the elastic shell is fixed to the induction cooker by clamping the protrusion between the first clamping plate 202 and the second clamping plate 203. The upper surface of the ceramic induction member 101 is in contact with the panel of the induction cooker. The ceramic induction member 101 transmits the temperature of the induction cooker panel to the thermistor 3 in the ceramic housing 102, and then transmits it to the external device through the wire 4 and the connector 5, so as to monitor the temperature of the induction cooker panel in real time.

[0041] The above examples are merely illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. All designs that are identical or similar to the present invention fall within the protection scope of the present invention.

Claims

1. An insulating temperature sensor, characterized in that: The invention comprises a ceramic base (1), a thermistor (3) and a wire (4); the ceramic base (1) comprises a ceramic shell (102) and a ceramic induction element (101) arranged on the top of the ceramic shell (102); the thermistor (3) is installed in the ceramic shell (102); one end of the wire (4) is connected to the pin of the thermistor (3), and the other end extends to the outside of the ceramic shell (102); and a fixing component (2) connected to an external device is provided on the ceramic shell (102).

2. The insulated temperature sensor according to claim 1, characterized in that: The fixing assembly (2) comprises a shell (201); the shell (201) is wrapped outside the ceramic shell (102); and a fixing part connected to an external device is provided on the shell (201).

3. The insulated temperature sensor according to claim 2, characterized in that: The fixing member comprises a first clamping plate (202) and a second clamping plate (203); the first clamping plate (202) and the second clamping plate (203) are both provided with through holes matching the outer diameter of the housing (201); the first clamping plate (202) and the second clamping plate (203) are sleeved on the outside of the housing (201) through their respective through holes, and a preset distance is maintained between the bottom surface of the first clamping plate (202) and the top surface of the second clamping plate (203).

4. The insulated temperature sensor according to claim 3, characterized in that: The housing (201), the first clamping plate (202) and the second clamping plate (203) are an integrally formed structure.

5. The insulated temperature sensor according to claim 2, characterized in that: The shell (201) is an elastic shell; the elastic shell is clamped on the outside of the ceramic shell (102).

6. The insulated temperature sensor according to claim 1, characterized in that: It also comprises a connector (5); one end of the wire (4) away from the thermistor (3) is crimped to the connector (5).

7. The insulated temperature sensor according to claim 1, characterized in that: The thermistor (3) is encapsulated in the ceramic housing (102) via an insulating adhesive layer.

8. The insulated temperature sensor according to claim 1, characterized in that: The conductor (4) is wrapped with an insulating sheath.

9. The insulated temperature sensor according to claim 1, characterized in that: The ceramic induction element (101) is a circular ceramic plate; the ceramic housing (102) is a hollow ceramic cylinder with a diameter smaller than that of the circular ceramic plate; the bottom surface of the circular ceramic plate is fixedly connected to the top surface of the ceramic cylinder; and the thermistor (3) is installed in the ceramic cylinder.

10. The insulated temperature sensor according to claim 9, characterized in that: The ceramic induction element (101) and the ceramic housing (102) are an integrally formed structure.

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