Temperature control coupler of electric kettle

Abstract

The utility model relates to the technical field of temperature controllers, in particular to a temperature control coupler of an electric kettle. According to the technical scheme, the device comprises a lower cover and an upper cover movably connected with the lower cover, a plurality of conductive contacts are fixedly installed in the lower cover, the device further comprises a pressure adjusting mechanism, the pressure adjusting mechanism is installed in the lower cover, and the pressure adjusting mechanism controls pressure applied to the upper cover by the conductive contacts according to the combination degree of the upper cover and the lower cover. According to the utility model, the moving range of the connector lug towards the lower cover is controlled. The pressure between the upper cover and the lower conductive contact is increased, so that the friction force between the upper cover and the conductive contact is improved, the conductive contact is rubbed, and an oxide layer formed on the conductive contact can be removed through grinding. The phenomenon of poor contact between the upper cover and the lower cover after long-term use can be effectively prevented. And a relatively short and large pressure is only applied to the conductive contact. And excessive wear of the conductive contact can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature controllers, in particular to a temperature control coupler for an electric kettle. Background Art

[0002] The thermostat of an electric kettle is a key component that monitors the temperature of the water inside the kettle and controls the operation of the heating element to ensure that the water in the kettle can boil within a safe temperature range. When the water temperature reaches the set temperature, the thermostat automatically cuts off the power supply to prevent the water from continuing to heat, thereby avoiding overheating and potential safety risks.

[0003] The thermostat coupler of an electric kettle usually consists of two parts: an upper seat and a lower seat. This design allows the thermostat to be tightly connected to the heat source (heating element) and power circuit of the electric kettle. The upper seat usually contains a temperature sensing element, such as a bimetallic strip or a temperature sensing spring. This temperature sensing element will deform according to the temperature change of the water in the kettle, thereby triggering the switch action and controlling the power supply of the heating element. When the water temperature reaches the set value, the temperature sensing element will deform, turn on the switch, and cut off the heating power; when the water temperature drops below the safe temperature, the temperature sensing element returns to its original state, turns off the switch, and resumes heating. The lower seat is usually in direct contact with the heating element, and it is responsible for transmitting the temperature change of the heating element to the temperature sensing element of the upper seat. The lower seat is also responsible for fixing the heating element and the thermostat coupler to ensure good contact and stability between them.

[0004] There are multiple conductive contacts in the lower seat that are electrically connected to the upper seat. However, due to long-term use and the influence of thermal expansion and contraction, and the fact that these conductive contacts are easily exposed to water, the contact between the lower seat and the heating element may become unstable, causing oxidation of the contact points, thereby affecting the heating efficiency or causing uneven heating. Summary of the invention

[0005] The purpose of the utility model is to solve the problem of contact point oxidation mentioned in the background technology, and to propose a KSD temperature controller which can grind the conductive contacts by the friction between the upper seat and the lower seat when the upper seat and the lower seat are combined.

[0006] The technical solution of the utility model is: a temperature control coupler for an electric kettle, comprising a lower cover and an upper cover movably connected to the lower cover, wherein a plurality of conductive contacts are fixedly installed in the lower cover, and further comprising:

[0007] The pressure regulating mechanism is installed in the lower cover, and the pressure regulating mechanism controls the pressure applied by the conductive contacts to the upper cover according to the degree of combination between the upper cover and the lower cover.

[0008] Optionally, a plurality of bolts are threadedly connected to the lower cover, and a plurality of wiring heads are detachably mounted on the lower cover, and the wiring heads are located between the lower cover and the bolts.

[0009] Optionally, the wiring head is provided with a through hole for allowing a bolt to pass through, and the wiring head is made of an elastic conductive material.

[0010] Optionally, the plurality of conductive contacts correspond one-to-one to the plurality of wiring heads, and the conductive contacts are fixedly mounted on the wiring heads.

[0011] Optionally, the pressure regulating mechanism includes a rubber pad fixedly mounted on the conductive contact, a pressure spring fixedly mounted on the rubber pad, the other end of the pressure spring is fixedly connected to the lower cover, a plurality of driving rods are slidably mounted on the lower cover, the driving rods pass through one side of the lower cover and extend to the interior of the lower cover, a support plate is fixedly mounted on the driving rod, a reset spring is fixedly mounted on the support plate, a driving wheel is rotatably mounted on the driving rod, and a plurality of pressure blocks are fixedly mounted on the lower cover.

[0012] Optionally, the pressure block is semicircular, and a plurality of the pressure blocks correspond one-to-one to a plurality of the driving wheels, and the driving wheel is located on one side of the pressure block.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] When the upper cover and the lower cover are combined, the upper cover will press down the driving rod, which will drive the driving wheel to move downward. When the driving wheel is located in the middle of the pressure block, the range in which the terminal head can move toward the lower cover is minimal. At this time, the conductive contact cannot rebound inside the lower cover, thereby increasing the pressure between the upper cover and the lower conductive contact, thereby increasing the friction between the upper cover and the conductive contact, and then rubbing the conductive contact, thereby removing the oxide layer formed on the conductive contact. This can effectively prevent poor contact between the upper cover and the lower cover after long-term use. And only a relatively short and large pressure is applied to the conductive contact. Excessive wear of the conductive contact can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of the bottom of the utility model is given;

[0016] Figure 2 A schematic diagram of the structure of the top of the utility model is given;

[0017] Figure 3 A schematic diagram of the structure of the utility model from a top view is given;

[0018] Figure 4 Provide the utility model Figure 3 Sectional view at AA in the middle;

[0019] Figure 5 Provide the utility model Figure 4 A partial enlarged view of the middle A;

[0020] Figure 6 A structural schematic diagram of the wiring head and the conductive contact of the utility model is given.

[0021] Figure numerals: 1, lower cover; 2, terminal head; 201, conductive contact; 202, bolt; 3, rubber pad; 301, pressure spring; 302, driving rod; 303, support plate; 304, return spring; 305, driving wheel; 306, pressure block. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Example

[0024] like Figure 1 and Figure 4 as well as Figure 6 As shown, the temperature control coupler of an electric kettle proposed by the utility model comprises a lower cover 1 and an upper cover movably connected to the lower cover, a plurality of conductive contacts 201 are fixedly installed in the lower cover 1, a plurality of bolts 202 are threadedly connected to the lower cover 1, a plurality of wiring heads 2 are detachably installed on the lower cover 1, and the wiring heads 2 are located between the lower cover 1 and the bolts 202. The wiring heads 2 can be fixedly connected to the lower cover 1 through the bolts 202. The wiring heads 2 are provided with through holes for the bolts 202 to pass through, and the wiring heads 2 are made of elastic conductive material. The wiring heads 2 can be electrically connected to an external power source. The plurality of conductive contacts 201 correspond to the plurality of wiring heads 2 one by one, and the conductive contacts 201 are fixedly installed on the wiring heads 2. The power on the wiring heads 2 will be transmitted to the conductive contacts 201, and when the conductive contacts 201 are in contact with the upper cover, the upper cover can be energized.

[0025] like Figure 1-5As shown, it also includes a pressure regulating mechanism, which is installed in the lower cover 1. The pressure regulating mechanism controls the pressure applied by the conductive contact 201 to the upper cover according to the degree of combination between the upper cover and the lower cover 1. The pressure regulating mechanism includes a rubber pad 3 fixedly installed on the conductive contact 201 and a pressure spring 301 fixedly installed on the rubber pad 3. The other end of the pressure spring 301 is fixedly connected to the lower cover 1. The pressure spring 301 will always apply pressure to the conductive contact 201, so that the conductive contact 201 can approach the outer side of the lower cover 1, thereby ensuring that the conductive contact 201 can be in stable contact with the upper cover and compensating for the wear of the conductive contact 201. The stability of the connection between the conductive contact 201 and the upper cover is ensured. And because the terminal head 2 is elastic, after the conductive contact 201 contacts the upper cover, it will be squeezed by the upper cover and move toward the inside of the lower cover 1. At this time, the pressure spring 301 will be compressed. A plurality of driving rods 302 are slidably mounted on the lower cover 1. The driving rods 302 penetrate one side of the lower cover 1 and extend to the inside of the lower cover 1. A support plate 303 is fixedly mounted on the driving rod 302. A reset spring 304 is fixedly mounted on the support plate 303. A driving wheel 305 is rotatably mounted on the driving rod 302. A plurality of pressure blocks 306 are fixedly mounted on the lower cover 1. The pressure blocks 306 are semicircular in shape. The plurality of pressure blocks 306 correspond to the plurality of driving wheels 305 one by one. The driving wheels 305 are located on one side of the pressure blocks 306. When the upper cover is combined with the lower cover 1, the upper cover is placed on the lower cover 1, and the upper cover presses down the driving rod 302. At this time, the driving rod drives the support plate 303 to descend and stretches the reset spring 304. At the same time, the descending driving rod 302 will drive the driving wheel 305 to move downward, and the driving wheel 305 moving downward will contact the pressure block 306 and limit the pressure block 306. When the driving wheel 305 is located in the middle of the pressure block 306, the range of movement of the terminal head 2 toward the lower cover 1 is the smallest. At this time, the upper cover will squeeze the conductive contact 201 and slide relatively. Since the range of movement of the pressure block 306 is small at this time, the conductive contact 201 cannot move inside the lower cover 1 under the squeezing of the upper cover, thereby increasing the pressure between the upper cover and the lower conductive contact, and then increasing the friction between the upper cover and the conductive contact 201. By the relative movement between the upper cover and the conductive contact 201, the conductive contact 201 is rubbed, and the oxide layer formed on the conductive contact 201 can be removed. When the upper cover and the lower cover 1 are completely combined, the driving wheel 305 is located below the pressure block 306, and the terminal head 2 has a larger range of free movement, which can prevent the conductive contact 201 and the upper cover from being always under a large pressure, thereby avoiding excessive wear of the conductive contact 201.

[0026] Working principle: When the upper cover is combined with the lower cover 1, the upper cover is placed on the lower cover 1, and the upper cover will press down the driving rod 302. At this time, the driving rod drives the support plate 303 to descend, and drives the driving wheel 305 to move downward. The downward driving wheel 305 will contact the pressure block 306. When the driving wheel 305 is located in the middle of the pressure block 306, the range of movement of the terminal head 2 to the lower cover 1 is the smallest. At this time, the upper cover will squeeze the conductive contact 201 and slide relatively. Since the range of movement of the pressure block 306 is small at this time, the pressure between the upper cover and the lower conductive contact is increased, thereby increasing the friction between the upper cover and the conductive contact 201, and then rubbing the conductive contact 201, and then the oxide layer formed on the conductive contact 201 can be removed. When the upper cover is completely combined with the lower cover 1, the driving wheel 305 is located below the pressure block 306. At this time, the free range of movement of the terminal head 2 is large, which can prevent the conductive contact 201 and the upper cover from always being under a large pressure. Excessive wear of the conductive contacts 201 is avoided.

[0027] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A temperature control coupler for an electric kettle, comprising a lower cover (1) and an upper cover movably connected to the lower cover, wherein a plurality of conductive contacts (201) are fixedly installed in the lower cover (1), characterized in that: Also includes: A pressure regulating mechanism, the pressure regulating mechanism being installed in the lower cover (1), the pressure regulating mechanism controlling the pressure applied by the conductive contact (201) to the upper cover according to the degree of engagement between the upper cover and the lower cover (1); The pressure regulating mechanism comprises a rubber pad (3) fixedly mounted on the conductive contact (201), a pressure spring (301) fixedly mounted on the rubber pad (3), the other end of the pressure spring (301) being fixedly connected to the lower cover (1), a plurality of driving rods (302) being slidably mounted on the lower cover (1), the driving rods (302) penetrating one side of the lower cover (1) and extending to the interior of the lower cover (1), a support plate (303) being fixedly mounted on the driving rod (302), a return spring (304) being fixedly mounted on the support plate (303), a driving wheel (305) being rotatably mounted on the driving rod (302), and a plurality of pressure blocks (306) being fixedly mounted on the lower cover (1).

2. A temperature control coupler for an electric kettle according to claim 1, characterized in that: The lower cover (1) is threadedly connected with a plurality of bolts (202), and the lower cover (1) is detachably mounted with a plurality of wiring heads (2), wherein the wiring heads (2) are located between the lower cover (1) and the bolts (202).

3. A temperature control coupler for an electric kettle according to claim 2, characterized in that: The terminal head (2) is provided with a through hole for allowing the bolt (202) to pass through, and the terminal head (2) is made of an elastic conductive material.

4. A temperature control coupler for an electric kettle according to claim 2, characterized in that: The plurality of conductive contacts (201) correspond one-to-one to the plurality of wiring heads (2), and the conductive contacts (201) are fixedly mounted on the wiring heads (2).

5. The temperature control coupler of an electric kettle according to claim 1, characterized in that: The pressure block (306) is semicircular in shape, and a plurality of the pressure blocks (306) correspond one-to-one to a plurality of the driving wheels (305), and the driving wheel (305) is located on one side of the pressure block (306).

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