Electric kettle and its thermostat

Abstract

The present invention discloses an electric kettle and a thermostat thereof. The thermostat comprises: a thermostat body, a mounting plate and an anti-reset assembly. The anti-reset assembly comprises a movable block mounted on the thermostat body, a transmission member rotatably mounted on the thermostat body and in contact with the movable block, a compression spring arranged on one side of the transmission member and an anti-reset block connected to the transmission member. The anti-reset block acts on a spring with an electrode located below a ceramic rod. The mounting ends of the transmission member and the anti-reset block are provided with a steel spring. When in use, when the temperature of the bimetallic strip of the thermostat reaches a preset value, the bimetallic strip bends downward to squeeze the ceramic rod, and the ceramic rod pushes the spring with an electrode downward to disconnect the circuit. When the spring with an electrode moves downward, the anti-reset block moves forward under the action of the steel spring and is stuck on the spring with an electrode, preventing the situation in which the ceramic rod is reset when the bimetallic strip recovers its curvature, causing the spring with an electrode to automatically connect the circuit and continue heating, thereby avoiding the risk of cyclic dry burning.

Description

Technical Field

[0001] The present invention relates to the technical field of electric kettles, and more specifically, to a thermostat for an electric kettle. In addition, the present invention also relates to an electric kettle having the thermostat. Background Art

[0002] The electric kettle is a commonly used water-boiling device in daily life. Its fast water-boiling speed and convenient use make it popular among consumers.

[0003] Current electric kettles usually switch to a keep-warm state after boiling. When switching to the keep-warm state, the anti-dry-burn function may automatically reset, causing the circuit to be connected in a heating state, which will cause the kettle to remain in a heated state, causing a danger to use.

[0004] In summary, how to improve the existing electric kettle to avoid the situation where the electric kettle continues to heat up due to the automatic resetting of the anti-burn-dry structure and improve the safety of use is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a thermostat for an electric kettle, so as to avoid the situation where the electric kettle continues to heat due to the automatic resetting of the anti-burn-dry structure, thereby improving the safety of use. In addition, another object of the present invention is to provide an electric kettle having the above-mentioned thermostat.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A thermostat for an electric kettle comprises: a thermostat body, a mounting plate and an anti-reset assembly, wherein the anti-reset assembly comprises a movable block mounted on the thermostat body, a transmission member rotatably mounted on the thermostat body and in contact with the movable block, a compression spring arranged on one side of the transmission member and an anti-reset block connected to the transmission member, the anti-reset block acts on a spring sheet with an electrode located below a ceramic rod, and steel springs are arranged at the mounting ends of the transmission member and the anti-reset block.

[0008] Preferably, the movable block comprises an upper fixed column, a lower fixed column and a top plate, the lower fixed column is mounted on the thermostat body, and the movable block is in contact with the top plate.

[0009] Preferably, the anti-reset block is provided with a slot, the transmission member is provided with a fixing block, and the fixing block is installed in cooperation with the slot and slides in the slot.

[0010] Preferably, a water temperature probe is installed on the mounting plate.

[0011] Preferably, the water temperature probe is screwed or riveted to the mounting plate.

[0012] The thermostat of the electric kettle provided by the present invention, when the coupling part of the coupler is connected, the movable block is lifted up, driving the transmission member to move obliquely upward, and when the transmission member moves forward, it will drive the anti-reset block to move forward, which will generate a pressure on the steel spring, and the front end of the anti-reset block is supported by the electrode spring, generating a forward trend. When the temperature of the bimetallic strip of the thermostat reaches the preset temperature value, the bimetallic strip bends and pushes the ceramic rod downward, and the ceramic rod pushes the electrode spring to separate the two contact points. When the electrode spring moves downward, the anti-reset block moves forward under the action of the copper spring and is stuck on the electrode spring, forcing the contacts of the two springs to separate and fail to play the role of power supply, effectively preventing the heater from working in a long-term cycle heating, thereby preventing the risk of damage to components caused by cyclic heating and then causing the electrical appliance to spontaneously combust. When the coupling connection part is disconnected, the electric kettle is powered off, the movable block has no upward pressure, and the transmission member presses the movable block downward under the action of the compression spring, so that the movable block is reset, the anti-reset block is reset, and the electrode spring is reset. In summary, the thermostat effectively avoids the situation where the electric kettle continues to heat up due to the automatic resetting of the anti-burn-dry structure, thereby improving the safety of use.

[0013] Based on the thermostat provided above, the present invention also provides an electric kettle with the above-mentioned thermostat, comprising a kettle body, a base matching the kettle body, a plug connected to the base, and a thermostat arranged in the kettle body; the thermostat is the thermostat described in any one of the above items.

[0014] Since the electric kettle has the above-mentioned temperature controller, the electric kettle has the technical effects of the above-mentioned temperature controller to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 A schematic structural diagram of a temperature controller for an electric kettle provided in an embodiment of the present invention;

[0017] Figure 2 A schematic structural diagram of the temperature controller of the electric kettle provided in an embodiment of the present invention from another angle.

[0018] superior Figure 1-Figure 2 middle:

[0019] 1 is the thermostat body, 2 is the mounting plate, 3 is the movable block, 31 is the upper fixed column, 32 is the top plate, 4 is the transmission part, 5 is the compression spring, 6 is the anti-reset block, 7 is the ceramic rod, 8 is the spring with electrode, 9 is the water temperature probe, and 10 is the wiring terminal. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The thermostat of an electric kettle provided in an embodiment of the present invention comprises a thermostat body 1, a mounting plate 2 and an anti-reset assembly, wherein the anti-reset assembly comprises a movable block 3 mounted on the thermostat body 1, a transmission member 4 rotatably mounted on the thermostat body 1 and in contact with the movable block 3, a compression spring 5 arranged on one side of the transmission member 4 and an anti-reset block 6 connected to the transmission member 4, the anti-reset block 6 acts on a spring sheet 8 with an electrode located below a ceramic rod 7, and steel springs are arranged at the mounting ends of the transmission member 4 and the anti-reset block 6.

[0022] In the heating state, the movable block 3 is lifted up, driving the transmission member 4 to move, thereby driving the anti-reset block 6 to move forward, and then exerting a certain pressure on the steel spring, so that the front end of the anti-reset block 6 is supported by the electrode spring 8, generating a forward trend. When the temperature of the bimetallic strip of the thermostat reaches the preset value, the bimetallic strip bends downward to squeeze the ceramic rod 7, and the ceramic rod 7 pushes the electrode spring 8 downward to disconnect the circuit, thereby preventing the electric kettle from being burned dry. When the electrode spring 8 moves downward, the anti-reset block 6 moves forward under the action of the steel spring and gets stuck on the electrode spring 8, thereby preventing the ceramic rod 7 from resetting when the bimetallic strip restores its curvature, causing the electrode spring 8 to automatically connect the circuit and continue heating, thereby avoiding the risk of cyclic dry burning, making the electric kettle safer to use.

[0023] The movable block 3 comprises an upper fixed column 31, a lower fixed column and a top plate 32. Specifically, the lower fixed column is mounted on the thermostat body 1, and the movable block 3 is in contact with the top plate 32. When the coupling part of the coupler is connected, the lower fixed column is lifted up, driving the movable block 3 to move upward as a whole, and the top plate 32 drives the transmission member 4 to move obliquely upward.

[0024] The anti-reset block 6 is provided with a slot, and the transmission member 4 is provided with a fixed block, which is installed in cooperation with the slot and slides in the slot, so that the two are connected by a slide slot, so that when the two move relative to each other under the action of the steel spring, they can more stably realize the movement of each other.

[0025] In order to simplify the structure of the thermostat, the water temperature probe 9 can be designed as an integrated structure with the thermostat body 1. Specifically, the water temperature probe 9 can be installed on the mounting plate 2. Preferably, the water temperature probe 9 is screwed or riveted to the mounting plate 2. Of course, other installation forms are also feasible, which is not limited in this article. The two ends of the power supply of the water temperature probe can be connected to the copper ring terminal 10 respectively, as shown in the figure.

[0026] The thermostat of the electric kettle provided by the embodiment of the present invention, when the coupling part of the coupler is connected, the movable block 3 is lifted up, driving the transmission member 4 to move obliquely upward, and when the transmission member 4 moves forward, it will drive the anti-reset block 6 to move forward, which will generate a pressure on the steel spring, and the front end of the anti-reset block 6 is supported by the electrode spring 8, generating a forward trend. When the temperature of the bimetallic strip of the thermostat reaches the preset value, the bimetallic strip bends downward to squeeze the ceramic rod 7, and the ceramic rod 7 pushes the electrode spring 8 downward to disconnect the circuit, which plays a role in preventing dry burning. When the electrode spring 8 moves downward, the anti-reset block 6 moves forward under the action of the steel spring and gets stuck on the electrode spring 8, preventing the ceramic rod 7 from resetting when the bimetallic strip recovers its curvature, causing the electrode spring 8 to automatically connect the circuit and continue heating, thereby avoiding the risk of cyclic dry burning. When the coupler connection is disconnected, the electric kettle is powered off, the movable block 3 has no upward pressure, and the transmission member 4 presses the movable block 3 downward under the action of the compression spring 5, so that the movable block 3 is reset, the anti-reset block 6 is reset, and the electrode spring 8 is reset. In summary, the thermostat well avoids the situation that the electric kettle continues to heat due to the automatic reset of the anti-drying structure, and improves the safety of use.

[0027] Based on the above-mentioned thermostat, an embodiment of the present invention further provides an electric kettle having the above-mentioned thermostat, comprising a kettle body, a base matched with the kettle body, a plug connected with the base, and a thermostat arranged in the kettle body; specifically, the thermostat is the above-mentioned thermostat. For the specific structure of the electric kettle in this application, please refer to the prior art and will not be repeated here.

[0028] Since the electric kettle has the temperature controller, the electric kettle is also safer to use to a certain extent.

[0029] In this specification, various embodiments are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. Similar parts between various embodiments can be referenced to each other.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thermostat for an electric kettle, characterized in that: include: A thermostat body (1), a mounting plate (2) and an anti-reset component, wherein the anti-reset component comprises a movable block (3) mounted on the thermostat body (1), a transmission member (4) rotatably mounted on the thermostat body (1) and in contact with the movable block (3), a compression spring (5) arranged on one side of the transmission member (4) and an anti-reset block (6) connected to the transmission member (4), wherein the anti-reset block (6) acts on a spring sheet (8) with an electrode located below a ceramic rod (7), and steel springs are arranged at the mounting ends of the transmission member (4) and the anti-reset block (6); The movable block (3) comprises an upper fixed column (31), a lower fixed column and a top plate (32), the lower fixed column is mounted on the thermostat body (1), and the movable block (3) is in contact with the top plate (32); The anti-reset block (6) is provided with a slot, and the transmission member (4) is provided with a fixing block, the fixing block is installed in cooperation with the slot and slides in the slot; A water temperature probe (9) is installed on the installation plate (2); The water temperature probe (9) is screwed or riveted onto the mounting plate (2); When the coupling part of the coupler is connected, the movable block (3) is lifted up and drives the transmission member (4) to move obliquely upward. When the transmission member (4) moves forward, it drives the anti-reset block (6) to move forward and exerts pressure on the steel spring. The anti-reset block (6) is supported by the electrode spring (8) and has a tendency to move forward. When the coupling part of the coupler is disconnected, the electric kettle is powered off, and the transmission member (4) presses the movable block (3) downward under the action of the compression spring (5), so that the movable block (3) is reset, the anti-reset block (6) is reset, and the electrode spring (8) is reset.

2. An electric kettle, comprising a kettle body, a base matched with the kettle body, a plug connected to the base, and a temperature controller arranged in the kettle body: characterized in that: The thermostat is the thermostat as claimed in claim 1.

Images