Temperature controller with variable adjustment range

Abstract

The utility model relates to the technical field of temperature controllers, in particular to a temperature controller with a variable adjusting range, which comprises a base and a connecting seat, a conducting ring is arranged on the periphery of the middle position of the base in a surrounding manner, a temperature sensing probe is arranged in the middle position of the base, a plurality of mounting plates are arranged on the outer side of the base, and the connecting seat is arranged on the base. An adjusting button is arranged between two of the mounting plates, a power connection piece is mounted on the outer side of the connecting base, and a control panel is mounted on the lower portion of the interior of the connecting base. When the temperature controller is used, the outer side of the temperature sensing probe is sleeved with the protective sleeve, the protective sleeve is made of polytetrafluoroethylene materials, and polytetrafluoroethylene has the dustproof, waterproof and corrosion-resistant characteristics, so that the outer surface of the temperature sensing probe can be protected, and corrosion caused by long-time damping of the temperature sensing probe is avoided.

Description

Technical Field

[0001] This utility model relates to the field of temperature controller technology, specifically a temperature controller with a variable adjustment range. Background Technology

[0002] Electric kettles are a very common type of hot water appliance. Due to their safety, convenience, good heat preservation, and strong filtration function, they have gradually become an indispensable household appliance.

[0003] Currently, electric kettles mainly consist of a kettle body and a base. A thermostat is installed at the bottom of the kettle body to control the heating temperature. The thermostat is primarily composed of a bimetallic strip, and its working principle is based on the thermal expansion and contraction characteristics of the bimetallic strip. When the electric kettle starts heating, the water temperature gradually rises, and the bimetallic strip inside the thermostat is also affected by the heat, causing it to bend. Because the bimetallic strip is composed of two metals with different coefficients of thermal expansion, the two metals expand at different rates as the temperature rises, causing the bimetallic strip to bend. When it bends to a certain extent, the bimetallic strip pushes the switch contacts to open, thereby cutting off the power supply to the heating element.

[0004] Most thermostats used in electric kettles today are adjustable in temperature range. This means the thermostat has a specific temperature sensing range. When the water temperature in the kettle reaches or approaches the boiling point, the thermostat senses this temperature change. The temperature sensing element (such as a bimetallic strip or a thermistor) undergoes a physical change as the water temperature rises. This change triggers the thermostat's operating mechanism, cutting off the power to the heating element to prevent over-boiling and dry burning. Users can also set different heating temperatures as needed. This adjustability is usually achieved through buttons or knobs on the control panel.

[0005] However, existing variable-range thermostats still have the following shortcomings: 1. The temperature sensing probe inside the thermostat is usually directly exposed to the external environment, making it susceptible to poor water quality or humid environments, which can cause its surface to be easily corroded, affecting its normal temperature sensing effect; 2. It lacks a corresponding heat dissipation mechanism. However, when the thermostat is working, its internal electronic components (such as resistors and capacitors) consume electrical energy and generate a certain amount of heat, causing heat to accumulate inside the thermostat housing, which can affect the normal operation of the thermostat.

[0006] Therefore, a temperature controller with a variable adjustment range needs to be designed to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a temperature controller with a variable adjustment range to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A temperature controller with a variable adjustment range includes a base and a connecting base. A conductive ring is arranged around the center of the base, and a temperature sensing probe is arranged at the center of the base. Multiple mounting plates are arranged on the outer side of the base, and an adjustment button is arranged between two of the mounting plates. A contact plate is installed on the outer side of the connecting base, and a control board is installed inside the lower part of the connecting base.

[0010] As a preferred embodiment of this utility model, an output terminal connection post is connected to the lower part of the temperature sensing probe, and an output terminal interface is provided below the output terminal connection post. A connection line is plugged into the output terminal interface, and the other side of the connection line is plugged into and fixed to the control board.

[0011] As a preferred embodiment of this utility model, a protective sleeve is also provided on the outside of the temperature sensing probe, and the protective sleeve is made of polytetrafluoroethylene.

[0012] As a preferred embodiment of this utility model, a grounding post is electrically connected to the lower part of the conductive ring, the grounding post is in contact with the grounding plate, and a grounding hole is also provided on one side of the grounding plate.

[0013] In a preferred embodiment of this invention, the adjustment button is connected to the control board via a wire.

[0014] As a preferred embodiment of this utility model, a cooling fan is also fixedly installed on the inner side of the connector, and a heat sink plate is provided on the connector on one side of the cooling fan.

[0015] As a preferred embodiment of this utility model, the heat sink plate is further provided with heat dissipation holes, and a dustproof net is laid on the outside of the heat dissipation holes.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, a temperature controller with a variable adjustment range is provided. When using the temperature controller, a protective cover is installed on the outside of the temperature sensing probe. The protective cover is made of polytetrafluoroethylene (PTFE), which has the characteristics of dustproof, waterproof and corrosion resistant, thereby protecting the outer surface of the temperature sensing probe and preventing it from being corroded by moisture over a long period of time.

[0018] 2. In this utility model, a variable-range temperature controller is provided, with a cooling fan installed inside one side of the temperature controller and a heat dissipation plate provided on the outer shell. The cooling fan dissipates the heat inside the temperature controller through the heat dissipation holes on the heat dissipation plate, thereby achieving the purpose of active heat dissipation and avoiding the high heat affecting the normal operation of the temperature controller. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention after partial disassembly;

[0021] Figure 3 This is a partial internal structure diagram of the present invention.

[0022] In the diagram: 1. Base; 2. Connector; 3. Conductive ring; 4. Temperature sensor; 5. Mounting plate; 6. Adjustment button; 7. Connector plate; 8. Control board; 9. Connecting circuit; 10. Protective sleeve; 11. Output terminal connector; 12. Connector plate; 13. Cooling fan; 14. Heat sink. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0028] A temperature controller with a variable adjustment range includes a base 1 and a connecting seat 2. A conductive ring 3 is arranged around the middle position of the base 1, a temperature sensing probe 4 is arranged at the middle position of the base 1, a plurality of mounting plates 5 are arranged on the outer side of the base 1, and an adjustment button 6 is arranged between two of the mounting plates 5. A contact plate 7 is installed on the outer side of the connecting seat 2, and a control board 8 is installed inside the lower part of the connecting seat 2.

[0029] Specifically, the temperature sensor 4 is connected to an output terminal connection post 11 below it, and an output terminal interface is provided below the output terminal connection post 11. The output terminal interface is connected to a connection line 9, and the other side of the connection line 9 is fixed to the control board 8. The adjustment button 6 communicates with the control board 8 through a wire and is ultimately connected to the control panel on the electric kettle. After the temperature sensor 4 senses the temperature, it transmits the temperature signal to the control board 8 through the output terminal interface and the connection line 9 to obtain the water temperature of the electric kettle. The temperature sensing range of the thermostat can be adjusted by adjusting the adjustment button 6.

[0030] The temperature sensor 4 is also provided with a protective sleeve 10 on the outside, and the protective sleeve 10 is made of polytetrafluoroethylene. Polytetrafluoroethylene has the characteristics of dustproof, waterproof and corrosion resistant, which can protect the outer surface of the temperature sensor 4 and prevent it from being corroded by moisture for a long time.

[0031] Specifically, a terminal post 12 is electrically connected to the lower part of the conductive ring 3. The terminal post 12 is in contact with the terminal piece 7, and a terminal hole is also provided on one side of the terminal piece 7. The terminal hole is connected to an external power supply line, and the contact between the conductive ring 3 and the terminal post 12 is used for electrical energy conduction.

[0032] Specifically, a cooling fan 13 is fixedly installed on the inner side of the connector 2, and a heat sink 14 is provided on the connector 2 on one side of the cooling fan 13; heat sink 14 is also provided with heat dissipation holes, and a dustproof net is laid on the outside of the heat dissipation holes; the cooling fan 13 is used to dissipate the heat inside the thermostat through the heat dissipation holes on the heat sink 14 to achieve active heat dissipation and avoid high heat affecting the normal operation of the thermostat.

[0033] The working process of this utility model is as follows: When using this variable-range thermostat, when the water temperature of the electric kettle reaches or approaches the boiling point, the thermostat senses this temperature change. The temperature sensing element of the thermostat (such as a bimetallic strip or a thermistor) undergoes a physical change as the water temperature rises. This change triggers the thermostat's action mechanism, thereby cutting off the power to the heating element to prevent the water from over-boiling and dry-burning. At the same time, the user can set different heating temperatures as needed. During the operation of the thermostat, a protective sleeve 10 is installed on the outside of the temperature sensing probe 4. The protective sleeve 10 is made of polytetrafluoroethylene (PTFE), which has dustproof, waterproof, and corrosion-resistant properties, thus protecting the outer surface of the temperature sensing probe 4 and preventing it from being corroded by moisture over a long period of time. At the same time, the cooling fan 13 dissipates the heat inside the thermostat through the heat dissipation holes on the heat sink 14 to achieve active heat dissipation and prevent high heat from affecting the normal operation of the thermostat.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature controller with a variable adjustment range, comprising a base (1) and a connecting base (2), characterized in that: A conductive ring (3) is arranged around the middle position of the base (1), a temperature sensor (4) is arranged in the middle position of the base (1), a plurality of mounting plates (5) are arranged on the outer side of the base (1), and an adjustment button (6) is arranged between two of the mounting plates (5). A contact plate (7) is installed on the outer side of the connector (2), and a control plate (8) is installed inside the lower part of the connector (2).

2. The temperature controller with a variable adjustment range according to claim 1, characterized in that: The temperature sensor (4) is connected to an output terminal connection post (11) below it, and an output terminal interface is provided below the output terminal connection post (11). The output terminal interface is connected to a connection line (9), and the other side of the connection line (9) is connected to and fixed on the control board (8).

3. A temperature controller with a variable adjustment range according to claim 2, characterized in that: The temperature sensor (4) is also provided with a protective sleeve (10) on the outside, and the protective sleeve (10) is made of polytetrafluoroethylene.

4. A temperature controller with a variable adjustment range according to claim 1, characterized in that: The conductive ring (3) is electrically connected to a grounding post (12) below it. The grounding post (12) is connected to the grounding piece (7) in contact. A grounding hole is also provided on one side of the grounding piece (7).

5. A temperature controller with a variable adjustment range according to claim 1, characterized in that: The adjustment button (6) is connected to the control board (8) via a wire.

6. A temperature controller with a variable adjustment range according to claim 1, characterized in that: A cooling fan (13) is also fixedly installed on the inner side of the connector (2), and a heat sink plate (14) is provided on one side of the cooling fan (13) on the connector (2).

7. A temperature controller with a variable adjustment range according to claim 6, characterized in that: The heat sink (14) is also provided with heat dissipation holes, and a dustproof net is laid on the outside of the heat dissipation holes.

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