Lower switch thermostat

Abstract

The application discloses an open switch temperature controller and belongs to the technical field of electric kettle accessories. The temperature controller comprises a temperature controller main body, an electrically conductive ring is fixedly arranged in the temperature controller main body, and a ground electrode piece, a fire electrode piece and a zero electrode piece are fixedly connected in the electrically conductive ring. The electrically conductive ring is integrated with the three groups of electrode pieces, and an electrical connection hub is formed. The ends of the three groups of electrode pieces extend into the installation groove and are precisely welded with the ground wire, the zero wire and the fire wire of the external electric wire. The positioning block and the clamping block in the installation groove constitute a rotatable clamping mechanism, the clamping force is adjusted through a locking screw, the external electric wire is clamped and fixed between the positioning block and the clamping block, a physical stress buffer layer is formed, the pulling force is dispersed, the external electric wire is not easily pulled, external force is prevented from acting on the welding point, and the connection tightness between the external electric wire and the electrode pieces is ensured.

Description

Technical Field

[0001] This application relates to the field of electric kettle accessories technology, and in particular to a bottom-switch thermostat. Background Technology

[0002] Electric kettles are widely used in people's daily lives due to their convenience, high power, fast heating speed, and cleanliness. The thermostat of an electric kettle is a device that controls the temperature within a certain range to prevent the water in the kettle from remaining in a boiling state for an extended period. Its main functions include automatic power-off and protection.

[0003] Currently, the internal temperature sensor of the kettle is fixed to the external wire by welding. In actual use, this connection method is prone to metal fatigue at the solder joint due to the wire being pulled by external force. Under long-term use, cracks will appear at the solder joint, eventually causing poor contact and making the kettle unable to work properly. Therefore, we are now making improvements to the switch thermostat. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a bottom-switch thermostat, which overcomes the deficiencies of existing technologies and aims to solve the problem that the current method of fixing the internal temperature sensor of a kettle to the external wire by welding is prone to metal fatigue at the solder joint due to the wire being pulled by external force during actual use. Under long-term use, the solder joint will crack, eventually causing poor contact and thus preventing the kettle from working properly.

[0005] To achieve the above objectives, this application provides the following technical solution: a bottom-switch thermostat, comprising a thermostat body, a conductive ring fixedly installed inside the thermostat body, a ground electrode plate, a live electrode plate, and a neutral electrode plate fixedly connected inside the conductive ring, a mounting base fixedly installed at the bottom of the conductive ring, and a mounting groove for placing the ground electrode plate, the live electrode plate, and the neutral electrode plate at the bottom of the mounting base, a positioning block fixedly installed inside the mounting groove, a clamping block rotatably connected to one side of the outer surface of the positioning block, the clamping block being fixedly installed to the positioning block by a locking screw, an external wire being clamped and connected between the clamping block and the positioning block, and the ground, neutral, and live wires of the external wire being fixedly welded to the ground electrode plate, the live electrode plate, and the neutral electrode plate, respectively.

[0006] By adopting the above technical solution, three sets of electrode plates—ground electrode plate, live electrode plate, and neutral electrode plate—are integrated through a conductive ring to form an electrical connection hub. The ends of the three sets of electrode plates extend into the mounting groove and are precisely welded to the ground, neutral, and live wires of the external wire. The positioning block and clamping block in the mounting groove form a rotatable clamping mechanism, and the clamping force is adjusted by tightening screws to clamp and fix the external wire between the positioning block and the clamping block, forming a physical stress buffer layer to disperse the pulling force, making the external wire less likely to be pulled, avoiding external force acting on the solder joint, and ensuring the tightness of the connection between the external wire and the electrode plate.

[0007] As a preferred technical solution of this application, a clamping pad is fixedly connected to the inner wall of the clamping block, and a plurality of protrusions are provided on the outer surface of the clamping pad, with the bottom of the protrusions abutting against the top of the external wire.

[0008] By adopting the above technical solution, the array layout of the convex strips forms a multi-point contact structure, which increases the friction coefficient between the clamping pad and the outer wire coating layer, making the outer wire less likely to be pulled.

[0009] As a preferred technical solution of this application, the widths of the ground electrode plate, the live electrode plate, and the neutral electrode plate are adapted to the width of the mounting groove, and the ground electrode plate, the live electrode plate, and the neutral electrode plate are all fixedly installed inside the mounting groove by positioning screws.

[0010] By adopting the above technical solution, the electrode sheet is precisely positioned inside the mounting groove using positioning screws.

[0011] As a preferred technical solution of this application, the mounting base, positioning screw, positioning block, clamping block and locking screw are all insulating components, and the clamping pad and convex strip are made of rubber material.

[0012] By adopting the above technical solution, an insulating protective layer is formed to prevent current leakage.

[0013] As a preferred technical solution of this application, a rocker plate is rotatably connected to the top of the thermostat body, and a bimetallic strip is fixedly installed at the bottom of the thermostat body below the rocker plate.

[0014] By adopting the above technical solution, the bimetallic strip undergoes bending deformation when the temperature changes due to the difference in the thermal expansion coefficients of different metals. The bimetallic strip under the rocker plate lifts the rocker plate under the action of steam, automatically closing the circuit.

[0015] As a preferred technical solution of this application, an insulating cover plate is fixedly installed on the top of the thermostat body by mounting screws, and a plug-in part is provided on the top of the insulating cover plate, and a bimetallic strip is also slidably inserted into the inside of the plug-in part.

[0016] By adopting the above technical solution and setting an additional bimetallic strip, the accuracy and reliability of the temperature control of the thermostat can be improved, and the anti-dry-burning function can be achieved.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In this invention, three sets of electrode plates—ground electrode plate, live electrode plate, and neutral electrode plate—are integrated through a conductive ring to form an electrical connection hub. The ends of the three sets of electrode plates extend into the mounting groove and are precisely welded to the ground, neutral, and live wires of the external wire. The positioning block and clamping block in the mounting groove constitute a rotatable clamping mechanism, and the clamping force is adjusted by the locking screw to clamp and fix the external wire between the positioning block and the clamping block, forming a physical stress buffer layer to disperse the pulling force, making the external wire less likely to be pulled, avoiding external force acting on the solder joint, and ensuring the tightness of the connection between the external wire and the electrode plate.

[0019] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a top view of the overall structure of this application;

[0022] Figure 2 This is a bottom view of the overall structure of this application;

[0023] Figure 3 This is a schematic diagram of the conductive ring structure of this application;

[0024] Figure 4 This is a schematic diagram of the mounting base of this application;

[0025] Figure 5 This is a schematic diagram showing the connection between the positioning block and the clamping block in this application;

[0026] Figure 6 This is a schematic diagram of the structure of the insulating cover plate of this application.

[0027] In the diagram: 1. Thermostat body; 2. Rocker arm; 3. Bimetallic strip; 4. Insulating cover; 5. Plug-in part; 6. Conductive ring; 7. Ground electrode; 8. Live electrode; 9. Neutral electrode; 10. Mounting base; 11. Mounting groove; 12. Positioning screw; 13. External wire; 14. Positioning block; 15. Clamping block; 16. Clamping pad; 17. Raised strip; 18. Locking screw; 19. Mounting screw. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] like Figure 1 - Figure 6 As shown, the down-switch thermostat provided in this embodiment includes a thermostat body 1. A conductive ring 6 is fixedly installed inside the thermostat body 1. A ground electrode 7, a live electrode 8, and a neutral electrode 9 are fixedly connected inside the conductive ring 6. A mounting base 10 is fixedly installed at the bottom of the conductive ring 6. The bottom of the mounting base 10 has a mounting groove 11 for placing the ground electrode 7, the live electrode 8, and the neutral electrode 9. A positioning block 14 is fixedly installed inside the mounting groove 11. A clamping block 15 is rotatably connected to one side of the outer surface of the positioning block 14. The clamping block 15 is fixedly installed to the positioning block 14 by a locking screw 18. An external wire 13 is clamped and snapped between the clamping block 15 and the positioning block 14. The ground, neutral, and live wires of the external wire 13 are fixedly welded to the ground electrode 7, the live electrode 8, and the neutral electrode 9, respectively. In use, through... The conductive ring 6 integrates three sets of electrode plates: ground electrode plate 7, live electrode plate 8, and neutral electrode plate 9, forming an electrical connection hub. The ends of the three sets of electrode plates extend into the mounting groove 11 and are precisely welded to the ground, neutral, and live wires of the external wire 13. The positioning block 14 and the clamping block 15 in the mounting groove 11 form a rotatable clamping mechanism. The clamping force is adjusted by the locking screw 18 to clamp and fix the external wire 13 between the positioning block 14 and the clamping block 15, forming a physical stress buffer layer to disperse the pulling force, making the external wire 13 less likely to be pulled, avoiding external force acting on the solder joint, and ensuring the tightness of the connection between the external wire 13 and the electrode plate. In use, a clamping pad 16 is fixedly connected to the inner wall of the clamping block 15. Several protrusions 17 are provided on the outer surface of the clamping pad 16, and the bottom of the protrusions 17 abuts against the top of the external wire 13.

[0030] In this embodiment, as Figure 4 and 5As shown, the array layout of the protrusions 17 forms a multi-point contact structure, which increases the coefficient of friction between the clamping pad 16 and the outer wire 13 covering layer, making the outer wire 13 less likely to be pulled. In use, the width of the ground electrode 7, the live electrode 8 and the neutral electrode 9 is adapted to the width of the mounting groove 11, and the ground electrode 7, the live electrode 8 and the neutral electrode 9 are all fixedly installed inside the mounting groove 11 by the positioning screws 12. In use, the electrode pieces are accurately positioned inside the mounting groove 11 by the positioning screws 12.

[0031] In this embodiment, as Figure 4 and 5 As shown, the mounting base 10, positioning screw 12, positioning block 14, clamping block 15 and locking screw 18 are all insulating components. The clamping pad 16 and the protrusion 17 are made of rubber material, which form an insulating protective layer during use to prevent current leakage.

[0032] In this embodiment, as Figure 2 As shown, a rocker plate 2 is rotatably connected to the top of the thermostat body 1, and a bimetallic strip 3 is fixedly installed at the bottom of the thermostat body 1 below the rocker plate 2. In use, the bimetallic strip 3 bends and deforms when the temperature changes due to the difference in the thermal expansion coefficients of different metals. The bimetallic strip 3 below the rocker plate 2 lifts the rocker plate 2 under the action of steam, automatically closing the circuit.

[0033] In this embodiment, as Figure 1 and 6 As shown, an insulating cover plate 4 is fixedly installed on the top of the thermostat body 1 by mounting screws 19. The top of the insulating cover plate 4 is provided with a plug part 5, and a bimetallic strip 3 is also slidably inserted into the plug part 5. In use, by setting an additional bimetallic strip 3, the accuracy and reliability of the temperature control of the thermostat can be improved, and the anti-dry burning function can be realized.

[0034] The working principle of this utility model is as follows: When using the switch-on temperature controller of this application, three sets of electrode plates are integrated through the conductive ring 6: ground electrode plate 7, live electrode plate 8, and neutral electrode plate 9. The ends of the three sets of electrode plates extend into the mounting groove 11 and are precisely welded to the ground, neutral, and live wires of the external wire 13. The positioning block 14 and the clamping block 15 in the mounting groove 11 form a rotatable clamping mechanism. The clamping force is adjusted by the locking screw 18 to clamp and fix the external wire 13 between the positioning block 14 and the clamping block 15, forming a physical stress buffer layer to disperse the pulling force and make the external wire 13 less likely to be pulled.

[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A switch-on temperature controller, comprising a temperature controller body (1), characterized in that, A conductive ring (6) is fixedly installed inside the body (1) of the thermostat. A ground electrode plate (7), a live electrode plate (8) and a neutral electrode plate (9) are fixedly connected inside the conductive ring (6). A mounting base (10) is fixedly installed at the bottom of the conductive ring (6). A mounting groove (11) is opened at the bottom of the mounting base (10) for placing the ground electrode plate (7), the live electrode plate (8) and the neutral electrode plate (9). A positioning block (14) is fixedly installed inside the mounting groove (11). A clamping block (15) is rotatably connected to one side of the outer surface of the positioning block (14). The clamping block (15) is fixedly installed to the positioning block (14) by a locking screw (18). An external wire (13) is clamped and snapped between the clamping block (15) and the positioning block (14). The ground wire, neutral wire and live wire of the external wire (13) are fixedly welded to the ground electrode plate (7), the live electrode plate (8) and the neutral electrode plate (9) respectively.

2. The down-switch temperature controller according to claim 1, characterized in that, The inner wall of the clamping block (15) is fixedly connected to a clamping pad (16), and the outer surface of the clamping pad (16) is provided with a number of protrusions (17), the bottom of the protrusions (17) abutting against the top of the external wire (13).

3. The down-switch temperature controller according to claim 2, characterized in that, The widths of the ground electrode (7), live electrode (8) and neutral electrode (9) are adapted to the width of the mounting groove (11), and the ground electrode (7), live electrode (8) and neutral electrode (9) are all fixedly installed inside the mounting groove (11) by positioning screws (12).

4. The down-switch temperature controller according to claim 3, characterized in that, The mounting base (10), positioning screw (12), positioning block (14), clamping block (15) and locking screw (18) are all insulating components, and the clamping pad (16) and protrusion (17) are made of rubber material.

5. The down-switch temperature controller according to claim 1, characterized in that, The top of the thermostat body (1) is rotatably connected to a rocker plate (2), and the bottom of the thermostat body (1) is fixedly installed below the rocker plate (2) with a bimetallic strip (3).

6. The down-switch temperature controller according to claim 5, characterized in that, An insulating cover plate (4) is fixedly installed on the top of the thermostat body (1) by mounting screws (19). A plug-in part (5) is provided on the top of the insulating cover plate (4), and a bimetallic strip (3) is also slidably inserted into the inside of the plug-in part (5).

Images