Temperature controller and electric kettle

Abstract

The utility model relates to temperature controller technical field especially is related to a temperature controller and electric kettle, including upper connecting seat and lower connecting seat, be equipped with several electrically conductive copper rings on the upper connecting seat, be equipped with several electrically conductive spring leaves of electrically connected electrically conductive copper ring on the lower connecting seat, still be equipped with the connecting ring on the upper connecting seat, the inner wall and the outer wall of connecting ring all are equipped with several mounting portions for the mounting of electrically conductive copper ring, and several mounting portions are along the axial interval distribution of connecting ring, still be equipped with the connecting groove of the plug -in cooperation with connecting ring on the lower connecting seat, the position of connecting groove is respectively provided with an electrically conductive spring leaf in correspondence with every mounting portion, the utility model discloses the temperature controller is provided with the connecting ring for the axial layered arrangement of multiple electrically conductive copper rings, and the upper connecting seat is fixed with the circumferential angle when plugging -in with the lower connecting seat, and the temperature controller increases the function and reduces the volume, reduces the cost.

Description

Technical Field

[0001] This utility model relates to the field of thermostat technology, and in particular to a thermostat and an electric kettle. Background Technology

[0002] Existing household appliances, such as common liquid heaters like electric kettles and health pots, use thermostats. Thermostats generally consist of an upper connector and a lower connector, which are plugged into each other to achieve electrical conduction.

[0003] Patent CN214044077U discloses a seven-pole thermostat, including a main body with a central shaft and several conductive copper rings inside. The main body has a central hole for mounting the central shaft and a first mounting ring groove, a second mounting ring groove, and a third mounting ring groove for mounting the conductive copper rings. The first and third mounting ring grooves are each provided with a dividing block for separating the conductive copper rings into two halves. This solution effectively solves the problem that existing thermostats are usually five-pole and have limited functions.

[0004] However, this solution still has the following problems: the main body and the coupler can only use a fixed insertion direction and position. If the main body and the coupler rotate relative to each other in the circumference, the conductive copper ring will not be able to make electrical connection with the corresponding copper post, causing electrical connection chaos. The added functions of the thermostat cannot be used normally, the thermostat cannot be powered on normally, and the thermostat is large in size and expensive. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a thermostat and electric kettle. The thermostat of this invention is provided with a connecting ring for multiple conductive copper rings to be arranged axially in layers. When the upper connecting seat and the lower connecting seat are inserted, there is no need to fix the circumferential angle. Moreover, the thermostat increases the function, reduces the size, and lowers the cost.

[0006] The technical solution adopted by this utility model is as follows: A temperature controller includes an upper connecting seat and a lower connecting seat. The upper connecting seat is provided with a plurality of conductive copper rings, and the lower connecting seat is provided with a plurality of conductive springs electrically connected to the conductive copper rings. The upper connecting seat is also provided with a connecting ring. The inner and outer walls of the connecting ring are provided with a plurality of mounting parts for mounting the conductive copper rings, and the plurality of mounting parts are spaced apart along the axial direction of the connecting ring. The lower connecting seat is also provided with a connecting groove that is inserted and fitted into the connecting ring. A conductive spring is provided in the connecting groove corresponding to the position of each mounting part.

[0007] The inner and outer walls of the connecting ring are each provided with two mounting portions for installing conductive copper rings, and the middle of the inner and outer walls of the connecting ring are each provided with a retaining ring that separates the two conductive copper rings.

[0008] Each conductive copper ring installed on the mounting part is provided with a conductive terminal. The inner wall and outer wall of the connecting ring are provided with at least one relief groove for the conductive terminal to pass through. The relief groove opens towards the end of the connecting ring near the upper connecting seat and extends to the mounting part of the connecting ring away from the upper connecting seat.

[0009] The inner and outer walls of the connecting ring have rounded edges at the mounting portion at the end away from the upper connecting seat, and each conductive copper ring mounted at the mounting portion away from the upper connecting seat has an arc-shaped side contact edge that matches the rounded edge.

[0010] The connecting ring is fixedly connected to the upper connecting seat by fasteners. The upper connecting seat is provided with mounting holes that cooperate with the fasteners. The connecting ring has at least one protruding positioning pin. The upper connecting seat is provided with at least one positioning hole that matches the positioning pin.

[0011] The upper connecting seat is provided with two limiting rings, and a slot for the connecting ring to be inserted is formed between the two limiting rings. The mounting hole and the positioning hole are both set in the slot. The connecting ring is recessed with at least one groove, and the slot is also provided with at least one protruding strip that matches the groove.

[0012] The upper connector is provided with a first circuit board, and each of the conductive terminals is electrically connected to the first circuit board. The lower connector is provided with a second circuit board, and each conductive spring piece disposed in the connecting groove is electrically connected to the second circuit board.

[0013] Each conductive spring piece installed in the connecting slot is interference-fitted with the lower connecting seat.

[0014] An electric kettle includes the aforementioned thermostat. The upper connector has a live wire copper ring and a neutral wire copper ring. The lower connector has a live wire spring connected to the live wire copper ring and a neutral wire spring connected to the neutral wire copper ring. The upper connector also has a live wire external connector connected to the live wire copper ring and a neutral wire external connector connected to the neutral wire copper ring. The electric kettle has a heating plate, and the two ends of the heating plate are respectively welded to the live wire external connector and the neutral wire external connector.

[0015] The beneficial effects of this utility model are as follows: The thermostat of this utility model arranges multiple conductive copper rings in layers along the axial direction of the connecting ring, and the connecting groove of the lower connecting seat is independently equipped with conductive springs corresponding to each mounting position. This means that when the upper and lower connecting seats are inserted, there is no need to fix the circumferential angle. Each conductive copper ring can still make precise contact with the conductive spring at the corresponding axial position, completely avoiding electrical connection chaos caused by misalignment. This ensures stable transmission of multi-functional signals of the thermostat. The three-dimensional spatial layout of the connecting ring reduces the radial space occupied compared to the planar arrangement of the mounting ring groove in the prior art, significantly reducing the radial size of the thermostat. This increases functionality while reducing volume and cost. It also supports modular addition and reduction of the number of conductive copper rings. Only the height and layer of the connecting ring need to be adjusted, and corresponding conductive springs need to be added in the connecting groove. This allows for rapid development of thermostats of different specifications. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0017] Figure 1 This is a schematic diagram of the temperature controller in this utility model;

[0018] Figure 2 This is a schematic diagram of the upper connecting seat in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the lower connecting seat in this utility model;

[0020] Figure 4 This is a schematic diagram of the connecting ring in this utility model;

[0021] Figure 5 for Figure 4 A schematic diagram of the structure after removing the conductive copper ring;

[0022] Figure 6 This is a structural schematic diagram of the connecting ring from another perspective in this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the upper connecting seat in this utility model with the conductive copper ring removed;

[0024] Figure 8 This is a schematic diagram of the assembly of the first circuit board and the upper connector in this utility model;

[0025] Figure 9This is a schematic diagram of the lower connector with the second circuit board removed in this utility model.

[0026] Figure 10 This is a schematic diagram of the structure of the conductive copper ring and the conductive spring in this utility model.

[0027] Figure 11 This is a schematic diagram of the structure of a thermostat and an electric kettle according to the present invention;

[0028] In the diagram, 1-upper connector, 2-lower connector, 3-conductive copper ring, 4-conductive spring, 5-connecting ring, 6-mounting part, 7-connecting groove, 8-retaining ring, 9-conductive terminal, 10-gap groove, 11-rounded corner, 12-arc side contact edge, 13-mounting hole, 14-positioning pin, 15-positioning hole, 16-limiting ring, 17-slot, 18-groove, 19-protrusion, 20-first circuit board, 21-second circuit board, 22-live wire copper ring, 23-neutral wire copper ring, 24-live wire spring, 25-neutral wire spring, 26-live wire external connector, 27-neutral wire external connector, 28-heating plate. Detailed Implementation

[0029] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0030] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0031] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0032] like Figures 1 to 11As shown, this is an embodiment of the present invention. A temperature controller includes an upper connecting seat 1 and a lower connecting seat 2. The upper connecting seat 1 is provided with a plurality of conductive copper rings 3, and the lower connecting seat 2 is provided with a plurality of conductive springs 4 electrically connected to the conductive copper rings 3. The upper connecting seat 1 is also provided with a connecting ring 5. The inner and outer walls of the connecting ring 5 are provided with a plurality of mounting parts 6 for mounting the conductive copper rings 3, and the plurality of mounting parts 6 are distributed at intervals along the axial direction of the connecting ring 5. The lower connecting seat 2 is also provided with a connecting groove 7 that is inserted and fitted into the connecting ring 5. A conductive spring 4 is respectively provided in the connecting groove 7 corresponding to the position of each mounting part 6.

[0033] The beneficial effects of this design are as follows: The thermostat of this invention arranges multiple conductive copper rings in layers along the axial direction of the connecting ring, and the connecting groove of the lower connecting seat is independently equipped with conductive springs corresponding to each mounting position. This allows the upper and lower connecting seats to be inserted without fixing the circumferential angle, and each conductive copper ring can still make precise contact with the conductive springs at the corresponding axial positions, completely avoiding electrical connection chaos caused by misalignment and ensuring stable transmission of multi-functional signals from the thermostat. Compared with the planar arrangement of the mounting ring groove in the prior art, the three-dimensional spatial layout of the connecting ring reduces the radial space occupied and significantly reduces the radial size of the thermostat. This increases functionality while reducing volume and cost. It also supports modular addition and reduction of the number of conductive copper rings. Only the height and layer of the connecting ring need to be adjusted, and corresponding conductive springs need to be added in the connecting groove, which can adapt to the rapid development of thermostats of different specifications.

[0034] Furthermore, the inner and outer walls of the connecting ring 5 are each provided with two mounting portions 6 for mounting the conductive copper rings 3, and the middle of the inner and outer walls of the connecting ring 5 is provided with a retaining ring 8 that separates the two conductive copper rings 3.

[0035] The beneficial effects of this design are as follows: In this embodiment, four conductive copper rings are installed on the connecting ring, increasing the number of poles of the thermostat to seven. The retaining ring protrudes in the middle of the inner and outer walls of the connecting ring to form a physical isolation zone, strictly separating the two conductive copper rings on the same wall. Compared with the single-layer separator block structure in the prior art, the double-wall retaining ring constitutes a four-section independent insulation barrier, namely two sections on the inner wall and two sections on the outer wall, increasing the creepage distance between adjacent copper rings by 200%, completely eliminating the risk of interlayer arc breakdown in high humidity environments. The retaining ring can also serve as an axial positioning reference, allowing the conductive copper rings to be precisely inserted into the mounting parts on both sides of the retaining ring when installing, avoiding axial movement errors caused by manual assembly. Furthermore, the retaining ring also serves as an annular reinforcing rib of the connecting ring, significantly improving the overall structural torsional stiffness.

[0036] In a further configuration, each conductive copper ring 3 installed on the mounting part 6 is provided with a conductive terminal 9. The inner and outer walls of the connecting ring 5 are provided with at least one clearance groove 10 for the conductive terminal 9 to pass through. The clearance groove 10 opens toward the end of the connecting ring 5 near the upper connecting seat 1, and the clearance groove 10 extends to the mounting part 6 of the connecting ring 5 away from the upper connecting seat 1.

[0037] The advantages of this design are as follows: each conductive copper ring extends to the outside of the upper connector through a conductive terminal, allowing the conductive terminal of the conductive copper ring installed at the end away from the upper connector to pass through the groove. The conductive terminal will not contact the adjacent conductive copper ring, forming an independent installation channel. Furthermore, the conductive copper ring can be replaced without disassembling the connecting ring, thus reducing maintenance costs.

[0038] Furthermore, the inner and outer walls of the connecting ring 5 are both chamfered with rounded corners 11 at the edges of the mounting portion 6 at the end away from the upper connecting seat 1, and each conductive copper ring 3 installed at the mounting portion 6 at the end away from the upper connecting seat 1 is provided with an arc-shaped side contact edge 12 that matches the rounded corner 11.

[0039] The beneficial effects of this design are as follows: the rounded corners and curved side contact edges increase the contact area between the conductive copper ring and the connecting ring, preventing displacement of the conductive copper ring and making the installation more secure. Moreover, the curved side contact edges form a smooth, progressive contact guide surface. When the upper and lower connecting seats are inserted at an angle, the connecting ring is subjected to the angled insertion force, and the conductive spring automatically slides back into position along the curved side contact edges, ensuring that the conductive copper ring and the conductive spring always maintain surface contact and a reliable electrical connection. Material scraping loss during the insertion and removal of the upper and lower connecting seats is greatly reduced, extending the service life of the conductive copper ring.

[0040] Further, the connecting ring 5 is fixedly connected to the upper connecting seat 1 by a fastener. The upper connecting seat 1 is provided with a mounting hole 13 that cooperates with the fastener. The connecting ring 5 has at least one positioning pin 14 protruding from it. The upper connecting seat 1 is provided with at least one positioning hole 15 that is adapted to the positioning pin 14.

[0041] The beneficial effects of this setup are as follows: the fasteners use existing technology bolts to ensure the connecting ring is securely installed; the connecting ring is engaged with the positioning hole of the upper connecting seat through a positioning pin, which guides the installation direction of the connecting ring and helps the bolt to quickly align with the mounting hole, thus improving assembly efficiency. In this embodiment, the connecting ring can also be fixed to the upper connecting seat by heat fusion.

[0042] Further, the upper connecting seat 1 is provided with two limiting rings 16, and a slot 17 for the connecting ring 5 to be inserted is formed between the two limiting rings 16. The mounting hole 13 and the positioning hole 15 are both provided in the slot 17. The connecting ring 5 is recessed with at least one groove 18, and the slot 17 is also provided with at least one protrusion 19 that matches the groove 18.

[0043] The beneficial effects of this design are as follows: the two limiting rings of the upper connector restrict the radial installation position of the connecting ring; the slot formed by the two limiting rings guides the connecting ring to quickly align, ensuring the coaxiality of the connecting ring and the upper connector; the connecting ring also forms a snap-fit ​​engagement with the protrusion in the slot through the groove, restricting the circumferential installation position of the connecting ring and preventing the connecting ring from rotating or shifting along the circumferential direction, further ensuring the stable installation of the connecting ring.

[0044] Further configuration: the upper connector 1 is provided with a first circuit board 20, and each of the conductive terminals 9 is electrically connected to the first circuit board 20; the lower connector 2 is provided with a second circuit board 21, and each conductive spring piece 4 disposed in the connecting groove 7 is electrically connected to the second circuit board 21.

[0045] The advantages of this setup are as follows: each conductive copper ring mounted on the connecting ring is soldered to the first circuit board via conductive terminals, integrating multiple conductive copper rings. Each conductive copper ring can also be controlled individually, facilitating signal transmission and control for each conductive copper ring. Each conductive spring installed in the connecting slot is also soldered to the second circuit board, optimizing the control circuit structure and making the internal structure of the temperature controller more streamlined. Both the first and second circuit boards are PCBs, and multiple wires are soldered onto the PCBs for connecting external control modules. Each circuit can be freely controlled to achieve various functions, such as connecting an external NTC to measure temperature.

[0046] Furthermore, each conductive spring 4 located in the connecting slot 7 is interference-fitted with the lower connecting seat 2.

[0047] The advantages of this design are as follows: the T-slot on the lower connector allows the conductive spring to be inserted through, and the interference fit makes the conductive spring securely installed and saves on installation accessories, eliminating the need to use fasteners to fix each conductive spring separately.

[0048] Further, an electric kettle includes the aforementioned thermostat. The upper connecting base 1 is provided with a live wire copper ring 22 and a neutral wire copper ring 23. The lower connecting base 2 is provided with a live wire spring 24 electrically connected to the live wire copper ring 22 and a neutral wire spring 25 electrically connected to the neutral wire copper ring 23. The upper connecting base 1 is also provided with a live wire external connector 26 electrically connected to the live wire copper ring 22 and a neutral wire external connector 27 electrically connected to the neutral wire copper ring 23. The electric kettle is provided with a heating plate 28, and the two ends of the heating plate 28 are respectively electrically welded to the live wire external connector 26 and the neutral wire external connector 27.

[0049] The advantages of this setup are as follows: the thermostat is directly soldered to the heating plate via the live wire and neutral wire connectors, eliminating the need to connect them via a power cord. This optimizes the circuit structure, saves on electrical connection components, and further reduces costs.

[0050] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A temperature controller, comprising an upper connecting seat (1) and a lower connecting seat (2), wherein the upper connecting seat (1) is provided with a plurality of conductive copper rings (3), and the lower connecting seat (2) is provided with a plurality of conductive springs (4) electrically connected to the conductive copper rings (3), characterized in that: The upper connecting seat (1) is also provided with a connecting ring (5). The inner and outer walls of the connecting ring (5) are provided with a number of mounting parts (6) for mounting conductive copper rings (3). The mounting parts (6) are distributed at intervals along the axial direction of the connecting ring (5). The lower connecting seat (2) is also provided with a connecting groove (7) that is inserted into the connecting ring (5). A conductive spring (4) is provided in the connecting groove (7) corresponding to the position of each mounting part (6).

2. A temperature controller according to claim 1, characterized in that: The inner and outer walls of the connecting ring (5) are provided with two mounting parts (6) for mounting the conductive copper rings (3), and the middle of the inner and outer walls of the connecting ring (5) is provided with a retaining ring (8) that separates the two conductive copper rings (3).

3. A temperature controller according to claim 1, characterized in that: Each conductive copper ring (3) installed on the mounting part (6) is provided with a conductive terminal (9). The inner wall and outer wall of the connecting ring (5) are provided with at least one relief groove (10) for the conductive terminal (9) to pass through. The relief groove (10) opens towards the end of the connecting ring (5) near the upper connecting seat (1) and extends to the mounting part (6) of the connecting ring (5) away from the upper connecting seat (1).

4. A temperature controller according to claim 1, characterized in that: The inner and outer walls of the connecting ring (5) are chamfered at the edges of the mounting portion (6) at the end away from the upper connecting seat (1), and each conductive copper ring (3) mounted at the mounting portion (6) at the end away from the upper connecting seat (1) is provided with an arc-shaped side contact edge (12) that matches the chamfer (11).

5. A temperature controller according to claim 1, characterized in that: The connecting ring (5) is fixedly connected to the upper connecting seat (1) by fasteners. The upper connecting seat (1) is provided with mounting holes (13) that cooperate with the fasteners. The connecting ring (5) has at least one positioning pin (14) protruding from it. The upper connecting seat (1) is provided with at least one positioning hole (15) that is adapted to the positioning pin (14).

6. A temperature controller according to claim 5, characterized in that: The upper connecting seat (1) is provided with two limiting rings (16), and a slot (17) for the connecting ring (5) to be inserted is formed between the two limiting rings (16). The mounting hole (13) and the positioning hole (15) are both set in the slot (17). The connecting ring (5) is recessed with at least one groove (18), and the slot (17) is also protruding with at least one protrusion (19) that matches the groove (18).

7. A temperature controller according to claim 3, characterized in that: The upper connector (1) is provided with a first circuit board (20), and each of the conductive terminals (9) is electrically connected to the first circuit board (20). The lower connector (2) is provided with a second circuit board (21), and each conductive spring (4) disposed in the connecting groove (7) is electrically connected to the second circuit board (21).

8. A temperature controller according to claim 7, characterized in that: Each conductive spring (4) set in the connecting groove (7) is interference-fitted with the lower connecting seat (2).

9. An electric kettle, characterized in that: The thermostat includes any one of claims 1-8, wherein the upper connecting seat (1) is provided with a live wire copper ring (22) and a neutral wire copper ring (23), the lower connecting seat (2) is provided with a live wire spring (24) electrically connected to the live wire copper ring (22) and a neutral wire spring (25) electrically connected to the neutral wire copper ring (23), the upper connecting seat (1) is also provided with a live wire external connector (26) electrically connected to the live wire copper ring (22) and a neutral wire external connector (27) electrically connected to the neutral wire copper ring (23), and the electric kettle is provided with a heating plate (28), the two ends of the heating plate (28) being electrically welded to the live wire external connector (26) and the neutral wire external connector (27) respectively.

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