A steam-triggered thermostat and a hot water kettle

Abstract

A steam-triggered thermostat and a hot water kettle. It mainly solves the problem that the thermostats on the current market cannot well sense whether the preset temperature has been reached. Its characteristics are as follows: A temperature sensing element (31) and a transmission element (32) are also provided on the bracket. The temperature sensing element is communicated with the water vapor in the hot water kettle through a steam channel (3). The temperature sensing element is used to make the camshaft in an adjustable temperature control mode through the transmission element when the temperature exceeds the deformation threshold. The present invention provides a steam-triggered thermostat and a hot water kettle, which can achieve disconnection by sensing the temperature of water vapor, and the temperature sensing is more accurate.

Description

Technical Field

[0001] The present invention relates to the field of temperature control switches, and particularly to a steam-triggered thermostat and a hot water kettle. Background Art

[0002] The temperature measurement principle of a temperature control switch is to set the temperature measurement surface of the temperature control switch on the object to be measured. The temperature of the object to be measured is transmitted to the cover body of the temperature control switch and then to the metal thermal deformation sheet. Since the metal thermal deformation sheet is made into an arc shape, when the temperature rises, material thermal deformation stress is generated. When the stress reaches the set value, the arc-shaped metal thermal deformation sheet generates a sudden jump deformation, and the originally convex arc surface suddenly jumps into a concave arc surface, thereby pushing a pressing member downward to push open the switch contact and disconnect the circuit. When the temperature drops, it suddenly jumps back to the initial state, the contact closes, and the circuit is re-closed.

[0003] Chinese Patent with publication number 209591915 discloses a thermostat structure for an electric hot water kettle. However, this structure can only sense the temperature on the temperature sensing heating plate. However, there is an error in the temperature between the heating plate and the temperature inside the kettle due to heat insulation, and it cannot well sense whether the temperature has reached. Summary of the Invention

[0004] In order to overcome the deficiencies of the background art, the present invention provides a steam-triggered thermostat and a hot water kettle, mainly solving the problem that the current thermostats on the market cannot well sense whether the predetermined temperature has been reached.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A steam-triggered thermostat includes a bracket. A temperature sensing component is provided on the bracket. The temperature sensing component includes a camshaft. A temperature sensing element and a transmission member are also provided on the bracket. The temperature sensing element is communicated with the water vapor in the hot water kettle through a steam channel. The temperature sensing element is used to make the camshaft in an adjustable temperature control mode through the transmission member when the temperature exceeds the deformation threshold.

[0007] The temperature sensing element is a first temperature sensing sheet, and the convex side of the first temperature sensing sheet faces upward.

[0008] An elastic member for driving the camshaft into an adjustable temperature control mode is provided on the bracket. The temperature sensing component further includes a swing rod and a second temperature sensing sheet. One end of the swing rod is provided with a connecting portion that is in limit cooperation with the camshaft, and the other end is disposed opposite to the second temperature sensing sheet; the transmission member is used to separate the connecting portion from the camshaft under the drive of the temperature sensing element.

[0009] The middle end of the transmission member is provided with a hinge shaft for hinging with the bracket. One end is correspondingly disposed below the temperature sensing element, and the other end is provided with a pushing portion opposite to the swing rod.

[0010] A protrusion is provided on the front end face of the swing rod, and the protrusion is provided in front of the connecting portion. The pushing portion is a groove that cooperates with the protrusion.

[0011] The groove is provided above the camshaft, and the bottom end face of the protrusion contacts the bottom end face of the groove.

[0012] The elastic member is a spring.

[0013] A receiving groove is axially provided on the camshaft. One end of the spring extends into the receiving groove, and a limiting rod is provided on the bracket. One end of the spring is sleeved outside the limiting rod.

[0014] It further includes a conduit, which is detachably connected to the bracket, and the steam channel is provided in the conduit.

[0015] A clamping groove is provided on the conduit, and a protrusion that cooperates with the clamping groove is provided on the bracket.

[0016] The beneficial effects of the present invention are as follows: The present invention provides a steam-triggered temperature controller and a hot water kettle, which can achieve disconnection through steam temperature sensing, and the temperature sensing is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded schematic diagram of an embodiment of the present invention.

[0018] Figure 2 is Figure 1 the enlarged schematic diagram of part A in

[0019] Figure 3 It is a partial three-dimensional schematic diagram of an embodiment of the present invention.

[0020] Figure 4 It is a partial three-dimensional schematic diagram of an embodiment of the present invention.

[0021] Figure 5 It is a partial cross-sectional schematic diagram of an embodiment of the present invention.

[0022] Figure 6 It is a three-dimensional schematic diagram of a hot water kettle of an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention is further described below in conjunction with the accompanying drawings: as shown in the figure, a steam-triggered thermostat includes a bracket 1, on which a temperature sensing component is provided, and the temperature sensing component includes a camshaft 21. The bracket is also provided with a temperature sensing member 31 and a transmission member 32, and the temperature sensing member is connected to the water vapor in the kettle through a steam channel 3. The temperature sensing member is used to put the camshaft in an adjustable temperature control mode through the transmission member when the temperature exceeds the deformation threshold. The temperature sensing component can be a KST component. As a preference, an adjustable temperature controller 30 can also be set on the bracket. The specific structure can refer to the Chinese patent with publication number 209591915. On the other hand, the steam channel can be extended into the kettle at one end to obtain the steam of the kettle, or it can be extended into the kettle from the handle through a hose (a hole can be opened on the kettle for the hose to pass through) to obtain water vapor. Water vapor can more accurately reflect the temperature, which is 100 degrees Celsius under standard atmospheric pressure, and can more timely reflect the temperature in the kettle. When the temperature sensing component senses 100 degrees Celsius, the camshaft is popped out through the transmission component to be in an adjustable temperature control mode. How the camshaft works specifically is a prior art and will not be repeated. The adjustable temperature control mode mentioned above can refer to the above-mentioned document, in which the camshaft pops out, and the setting of the opening, closing and insulation temperature (which can be kept boiling) is realized through the adjustable temperature controller.

[0024] In the present invention, as shown in the figure, the temperature sensing element is a first temperature sensing sheet, and the convex side of the first temperature sensing sheet faces upward, so that after the water vapor is liquefied, it will flow down and the upper end surface of the first temperature sensing sheet will not exist.

[0025] In the present invention, as shown in the figure, the bracket is provided with an elastic member 22 for driving the camshaft to be in an adjustable temperature control mode, and the temperature sensing component also includes a swing rod 23 and a second temperature sensing plate 24. One end of the swing rod is provided with a connecting portion 25 that cooperates with the camshaft, and the other end is arranged opposite to the second temperature sensing plate; the transmission member is used to separate the connecting portion from the camshaft under the drive of the temperature sensing member. The connecting portion (which can be a protruding block) provided at one end of the swing rod is stuck in the slot on the camshaft. When the second temperature sensing plate is deformed by temperature, one end of the swing rod is tilted up, and the connecting portion at the other end leaves the camshaft, or it can leave the camshaft under the drive of the transmission member, so that the cam is ejected under the action of the elastic member.

[0026] In the present invention, as shown in the figure, the middle end of the transmission member is provided with a hinge shaft 321 for hinged connection with the bracket, one end is correspondingly arranged below the temperature sensing member, and the other end is provided with a pushing portion 322 opposite to the swing rod. The transmission member is similar to a seesaw, when the temperature sensing member is pressed at one end, the other end is lifted to lift the swing rod to achieve separation.

[0027] In the present invention, as shown in the figure, a protrusion 231 is provided on the front end face of the swing rod. The protrusion is arranged in front of the connecting portion, and the pushing portion is a groove that cooperates with the protrusion. Here, the front refers to the front relative to the rotation axis of the swing rod. The protrusion is arranged in the groove, and with the drive of the groove, one end of the swing rod is lifted. In addition, the protrusion is correspondingly arranged in front of the connecting portion, and the distance between the connecting portion and the hinge axis of the swing rod is less than the distance between the protrusion and the hinge axis of the swing rod, which can better drive the connecting portion away from the camshaft and make the disconnection more rapid.

[0028] In the present invention, as shown in the figure, the groove is arranged above the camshaft, and the bottom end face of the protrusion contacts the bottom end face of the groove. The overall structure is compact and the use effect is better.

[0029] In the present invention, as shown in the figure, the elastic member is a spring. The elastic member can be a spring piece, a spring, etc.

[0030] In the present invention, as shown in the figure, a receiving groove 211 is axially provided on the camshaft. One end of the spring extends into the receiving groove, and a limiting rod 212 is provided on the bracket. One end of the spring is sleeved outside the limiting rod. The overall operation is more stable. The spring is sleeved outside the limiting rod, and then one end extends into the receiving groove and contacts the inner wall of the bottom of the receiving groove.

[0031] In the present invention, as shown in the figure, it further includes a conduit 41. The conduit is detachably connected to the bracket, and the steam channel is arranged in the conduit. The connection between the bracket and the steam channel is realized through the detachably arranged conduit, and different conduits can be replaced to adapt to use in different kettles.

[0032] In the present invention, as shown in the figure, a clamping groove 411 is provided on the conduit, and a second protrusion 13 that cooperates with the clamping groove is provided on the bracket. The installation is carried out through the second protrusion and the clamping groove, with a simple structure, convenient disassembly and assembly, and no tools such as screwdrivers are required.

[0033] In the present invention, as shown in the figure, a kettle includes a housing 8, and the housing includes the above-mentioned steam-triggered thermostat.

[0034] The embodiments described with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. The embodiments should not be regarded as limiting the present invention, but any improvement based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A steam-triggered thermostat, comprising a bracket (1), wherein a temperature-sensing component is arranged on the bracket, and the temperature-sensing component includes a camshaft (21), characterized in that: The bracket is further provided with a temperature sensing member (31) and a transmission member (32). The temperature sensing member is communicated with the water vapor in the hot water kettle through a steam channel (3). The temperature sensing member is used to make the camshaft in an adjustable temperature control mode through the transmission member when the temperature exceeds the deformation threshold value; The bracket is provided with an elastic member (22) for driving the camshaft into an adjustable temperature control mode. The temperature sensing assembly further includes a swing rod (23) and a second temperature sensing piece (24). One end of the swing rod is provided with a connecting portion (25) which is in limit cooperation with the camshaft, and the other end is arranged opposite to the second temperature sensing piece; the transmission member is used to separate the connecting portion from the camshaft under the drive of the temperature sensing member; the middle end of the transmission member is provided with a hinge shaft (321) for hinging with the bracket, one end is correspondingly arranged below the temperature sensing member, and the other end is provided with a pushing portion (322) opposite to the swing rod; a protrusion (231) is arranged on the front end face of the swing rod, the protrusion is arranged in front of the connecting portion, and the pushing portion is a groove matched with the protrusion; the groove is arranged above the camshaft, and the bottom end face of the protrusion is in contact with the bottom end face of the groove.

2. The steam-triggered thermostat according to claim 1, wherein: The temperature sensing member is a first temperature sensing piece, and the convex side of the first temperature sensing piece faces upward.

3. The steam-triggered thermostat according to claim 1, wherein: The elastic member is a spring. The camshaft is axially provided with a receiving groove (211). One end of the spring extends into the receiving groove. The bracket is provided with a limiting rod (212), and one end of the spring is sleeved outside the limiting rod.

4. A steam-triggered thermostat according to claim 1, characterized in that: It further includes a conduit (41). The conduit is detachably connected to the bracket, and the steam channel is arranged in the conduit.

5. A steam-triggered thermostat according to claim 4, characterized in that: The conduit is provided with a clamping groove (411), and the bracket is provided with a second protrusion (13) matched with the clamping groove.

6. A hot water kettle, comprising a housing, characterized in that: The housing includes a steam-triggered thermostat according to any one of claims 1-5.

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