CN218957619U

CN218957619U - Temperature controller for thermos bottle

Info

Publication number: CN218957619U
Application number: CN202223244124.3U
Authority: CN
Inventors: 杨立阳; 郑和生; 王明龙
Original assignee: Zhejiang Jiatai Electrical Appliance Co Ltd
Current assignee: Zhejiang Jiatai Electrical Appliance Co Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-05-02
Anticipated expiration: 2032-12-05

Abstract

A temperature controller for a thermos bottle comprises a main shell with a first abdicating hole at the center, and a fixed plate fixedly arranged on the main shell, wherein a second abdicating hole corresponding to the first abdicating hole is arranged at the center of the fixed plate, a water supply pipe/drain pipe passing through or a penetrating channel of a functional one-way valve is formed by the first abdicating hole and the second abdicating hole, a first wiring lug connected with a first electrode ring through a overheat switch and a second wiring lug connected with a second electrode ring through a fuse switch are arranged on the front surface of the main shell, the other ends of the first wiring lug and the second wiring lug extend out of the main shell, the overheat switch is an automatically resettable temperature-sensing switch, the fuse switch is a non-resettable temperature-sensing switch, and the temperature-sensing threshold of the fuse switch is higher than that of the overheat switch. The design has the advantages of clear wiring, safety, reliability and high space utilization rate.

Description

Temperature controller for thermos bottle

Technical Field

The utility model relates to a temperature controller, in particular to a temperature controller for a water boiling bottle.

Background

At present, the existing electric heating thermos bottle is generally controlled by a circuit board and a kick type temperature controller to heat a heating tube at the bottom of a heating inner container, so that heating, heat preservation and reheating are controlled, the structure is complex, a plurality of connecting wires are arranged at the bottom of the heating inner container, the assembly is very inconvenient, and moreover, in the aspect of overheat protection during internal faults, the conventional electric heating thermos bottle is generally realized by combining the kick type temperature controller with a fuse, and has the following defects: the vacuum flask has the advantages of large volume, complex connection, easy confusion with other connecting wires, complex wiring, compact structure between the vacuum flask and the vacuum flask, limited space, inconvenient installation and operation of each part, and easy occurrence of the danger of short circuit caused by mutual adhesion of guiding breakage. As the convex jump type temperature controller is a common part, once the convex jump type temperature controller fails, all safety defense lines are lost, so that the failure of the water bottle is scrapped, and even the hidden danger of fire occurs. The water inlet and outlet pipe needs special fastener to fasten it at the bottom of the heating inner container in a sealing way, and has high cost and low space utilization rate.

Disclosure of Invention

The utility model aims to provide a temperature controller for a thermos bottle, which has the advantages of clear wiring, safety, reliability and high space utilization rate, aiming at the defects existing in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a temperature controller for a thermos bottle comprises a main shell with a first abdication hole at the center and a fixed plate fixedly arranged on the main shell, wherein a second abdication hole corresponding to the first abdication hole is arranged at the center of the fixed plate, a through-extending channel of a water supply pipe/drain pipe passing or installing function check valve is formed by the first abdication hole and the second abdication hole, two concentric cylinder ring-shaped electrodes, namely a first electrode ring and a second electrode ring, are arranged in an annular groove at the back of the main shell, a first wiring lug connected with the first electrode ring in a control manner through a overheat switch and a second wiring lug connected with the second electrode ring in a control manner through a fuse switch are arranged on the front of the main shell, the other ends of the first wiring lug and the second wiring lug extend out of the main shell, the overheat switch is an automatic reset temperature switch, the fuse switch is a non-reset temperature switch, the temperature sensing threshold value of the fuse switch is higher than that of the overheat switch, the inner connecting ends of the first wiring lug and the second wiring lug are respectively provided with a first static contact and a second static contact, the overheat switch comprises a bimetallic actuator, a boosting porcelain rod, a first reed and a first supporting piece with a first limiting through hole for supporting the boosting porcelain rod to pass through, the bimetallic actuator, the boosting porcelain rod and the first supporting piece are arranged on a fixing piece and can be automatically reset, one end of the first reed is fixedly connected with a first electrode ring, the movable end of the other end of the first reed is provided with a first contact matched with the first static contact, the boosting porcelain rod passes through a fixing plate and the limiting through hole and is vertically arranged between the first reed and the bimetallic actuator, the movable end of the first reed moves downwards through the linkage of the boosting porcelain rod when the actuator is actuated, the overheat switch is opened; the fuse switch include fixed melting point and integrated into one piece's insulating fuse rod, second reed, take the spacing through-hole of second in order to support the second support piece that insulating fuse rod passed, the one end fixed connection second electrode ring of second reed, the other end movable end of second reed on have with second stationary contact matched with second contact, the fixed plate on open and to have the second through-hole that supplies insulating fuse rod to pass, insulating fuse rod pass second through-hole and the spacing through-hole of second erect between second reed and heating element, the ejecting second through-hole in top and heating element contact temperature sensing on the insulating fuse rod promptly, insulating fuse rod fixed melting point be the temperature sensing threshold of fuse switch, the second reed receive insulating fuse rod to support to press second contact and second stationary contact electrical contact normal close to be connected, under the condition that heating element exceeded insulating fuse rod fixed melting point temperature and overheat switch accuse temperature was lost, insulating fuse rod height decline, the second is lost to press and is lifted upwards to support and is lifted to the second movable end on the second movable end second reed and the second contact that the second contact is cut off from the dead-stop, thereby realize the thermal protection from the contact.

As an improvement: the insulation fusing rod is provided with a detachable or integrally formed anti-slip device, the anti-slip device is a limit protrusion, and the limit protrusion is limited below the fixing plate when the insulation fusing rod is erected between the second reed and the heating element.

As an improvement: the limiting protrusion is arranged at the middle upper part of the insulating fusing rod, is positioned above the second limiting through hole of the second supporting piece after assembly, has a maximum diameter larger than the diameter of the second through hole, and is used for limiting the insulating fusing rod through the lower bottom surface of the fixing plate so as to prevent the insulating fusing rod from falling off the temperature controller.

As an improvement: the limiting bulge is arranged at the middle lower part of the insulating fusing rod, is positioned below the second limiting through hole of the second supporting piece after assembly, has a maximum diameter larger than the diameter of the second limiting through hole, and is used for limiting the insulating fusing rod through the lower edge of the second limiting through hole of the second supporting piece so as to prevent the insulating fusing rod from falling off the temperature controller.

As an improvement: the limiting bulge is a convex ring integrally formed with the insulating fusing rod.

As an improvement: the free ends of the first lug and the second lug are arranged in parallel and in the same direction.

As an improvement: the overheat switch and the fuse switch are respectively arranged on the front surface of the main shell body at the positions far away from the annular shoulder of the penetrating channel, namely, the distance from the center of the overheat switch and the distance from the fuse switch are larger than the maximum outer diameter of the penetrating channel, and the overheat switch and the fuse switch are arranged with an interval therebetween to form independent control.

The temperature controller for the boiled water bottle is provided with the water supply pipe or the yielding hole through which the water inlet and outlet device is arranged at the center of the temperature controller, is convenient for water inlet and outlet design of the boiled water bottle, does not need to additionally arrange a fastener and a space, saves cost, further reduces the volume, is simple and convenient to assemble, and is especially suitable for compact structural design of the boiled water bottle. Moreover, the temperature controller is provided with the contact switch of the bimetallic actuator to realize automatic reset of the overheat switch so as to realize the function of dry burning prevention, and the self-fusing type contact switch is adopted to realize the function of non-resettable overheat protection, so that the last safety function can be well realized even if the overheat switch fails, the insulating fusing rod of the fusing switch is in direct contact with the heating element to obtain heat data, no intermediate element is used, no data failure exists, and compared with the existing indirect temperature data obtaining method, the scheme disclosed by the utility model has the advantages of more accurate temperature sensing, strong sensitivity, stronger anti-interference performance and stability, low cost and simple whole structure. Moreover, as the insulating fusing rod is integrally formed, the processing process steps and time of the temperature controller are shortened, the processing difficulty and cost are also reduced, and the precision and stability of the temperature controller are well ensured. The temperature controller is integrated with the penetrating and extending channel, the overheat switch and the fuse switch, compared with the prior art, a plurality of connecting wires among the temperature sensing switch, the heating component, the electric control component and the like are omitted, wiring design is greatly simplified, internal component installation is very simple, and meanwhile, the danger caused by wire breakage and mutual adhesion can be effectively avoided. The whole structure is very compact, the volume of the temperature controller is greatly reduced, the design does not need a lot of wiring, and the wiring is simplified.

The utility model is further described below with reference to the drawings and the detailed description.

Drawings

FIG. 1 is a schematic view showing the overall structure of an embodiment of a thermostat for a boiled water bottle according to the present utility model.

Fig. 2 is a schematic diagram of the explosive structure of fig. 1.

Detailed Description

As shown in fig. 1 and 2, an embodiment of a thermostat for a thermos bottle according to the present utility model includes a main housing 1 having a first relief hole 1-1 at the center thereof, a fixing plate 2 fixedly installed on the main housing 1, a second relief hole 2-1 corresponding to the first relief hole 1-1 at the center of the fixing plate 2, a through-passage for a water supply/drain pipe or a functional check valve is formed by the first relief hole 1-1 and the second relief hole 2-1, two concentric cylindrical ring-shaped electrodes, respectively, a first electrode ring and a second electrode ring, are installed in an annular groove on the back side of the main housing 1, a first terminal 9 in control connection with the first electrode ring through a overheat switch, and a second terminal 8 in control connection with the second electrode ring through a fuse switch are installed on the front side of the main housing, the other ends of the first wiring lug 9 and the second wiring lug extend out of the main shell 1, the overheat switch is an automatic reset temperature-sensing switch, the fuse switch is an unreleasable temperature-sensing switch, the temperature-sensing threshold of the fuse switch is higher than that of the overheat switch, a first stationary contact and a second stationary contact are respectively arranged on the inner connecting ends of the first wiring lug 9 and the second wiring lug 8, the overheat switch comprises a bimetallic actuator 11 which is arranged on a fixing piece and can be reset automatically, a boosting porcelain rod 12, a first reed 13, a first supporting piece 14 which is provided with a first limiting through hole to support the boosting porcelain rod 12 to pass through, one end of the first reed 13 is fixedly connected with a first electrode ring, a first contact matched with the first stationary contact is arranged on the movable end of the other end of the first reed 13, the boosting porcelain rod 12 passes through the fixed plate and the limiting through hole to be vertically arranged between the first reed 13 and the bimetallic actuator 11, the movable end of the first reed 13 moves downwards in a linkage way through the boosting porcelain rod 12 when the actuator is actuated to jump downwards, a first contact on the first reed 13 is disconnected with a first static contact, and the overheat switch is disconnected; the fuse switch include fixed melting point and integrated into one piece's insulating fuse rod 21, second reed 23, take the spacing through-hole of second in order to support the second support piece 24 that insulating fuse rod 21 passed, the one end fixed connection second electrode ring of second reed 23, the other end movable end of second reed 23 on have with second stationary contact matched with second contact, fixed plate 2 on open and to have the second through-hole 2-2 that supplies insulating fuse rod 21 to pass, insulating fuse rod 21 pass between second through-hole 2-2 and the spacing through-hole of second and erect and contact the temperature sensing of heating element, insulating fuse rod 21 fixed melting point is the temperature sensing threshold of fuse switch, second reed 23 support and press second contact and the electrical contact normal close connection of second stationary contact, when heating element surpasses insulating fuse rod 21 fixed melting point temperature and under the overheat switch accuse temperature failure, insulating fuse rod 21 self-fusing, insulating fuse rod 21 height decline, second reed 23 goes up and the second contact of the second reed that is not to the upper portion of supporting, thereby realizes the second contact from the movable contact of second reed that the overheat protection is lost. For the more reasonable structure, the overheat switch and the fuse switch are respectively arranged on the front surface of the main shell body at the positions far away from the annular shoulder of the penetrating channel, namely, the distance from the center of the overheat switch and the fuse switch is greater than the maximum outer diameter of the penetrating channel, and the overheat switch and the fuse switch are arranged with an interval therebetween to form independent control. The free ends of the first lug 9 and the free ends of the second lug 8 are arranged in parallel and in a consistent orientation and are respectively connected with two ends of a power circuit of the heating element so as to facilitate wiring.

In order to realize shock resistance, the insulation fusing rod 21 is ensured to be positioned in the temperature controller under the condition of inversion or inclination, so that misoperation is avoided, an integrally formed anti-slip device is arranged on the insulation fusing rod 21, the anti-slip device is a limiting protrusion 211, and the limiting protrusion 211 is limited below the fixed plate 2 when the insulation fusing rod 21 is erected between the second reed 23 and the heating element. Of course, the anti-slip device can also be detachable. The spacing protruding 211 of this embodiment sets up in insulating fuse rod 21 upper portion, the spacing protruding 211 be located the top of the spacing through-hole of second support piece 24 after the assembly, and spacing protruding 211 maximum diameter is greater than second through-hole 2-2 diameter, through the spacing insulating fuse rod 21 of the lower bottom surface of fixed plate 2 to prevent insulating fuse rod 21 from falling off the temperature controller, spacing protruding 211 be with insulating fuse rod 21 integrated into one piece's bulge loop. Of course, the limiting protrusion 211 may be disposed at a middle lower portion of the insulating fuse rod 21, and after assembly, the limiting protrusion 211 is located below the second limiting through hole of the second supporting member 24, and the maximum diameter of the limiting protrusion 211 is greater than the diameter of the second limiting through hole, and the insulating fuse rod 21 is limited by the lower edge of the second limiting through hole of the second supporting member 24, so as to prevent the insulating fuse rod 21 from falling off the temperature controller.

Although the present utility model has been described with reference to the above embodiments, it should be understood that the utility model is not limited thereto, but may be modified and altered somewhat by those skilled in the art without departing from the spirit and scope of the present utility model, and the scope of the utility model is therefore to be limited only by the scope of the appended claims.

Claims

1. A temperature controller for a thermos bottle, which is characterized in that: the temperature controller comprises a main shell (1) with a first abdication hole (1-1) at the center and a fixed plate (2) fixedly installed on the main shell (1), the center of the fixed plate (2) is provided with a second abdication hole (2-1) corresponding to the first abdication hole (1-1), the first abdication hole (1-1) and the second abdication hole (2-1) form a through-extension channel of a water supply pipe/drain pipe through or a check valve with an installation function, two concentric cylinder annular electrodes are installed in an annular groove at the back of the main shell (1), the two concentric cylinder annular electrodes are respectively a first electrode ring and a second electrode ring, a first wiring piece (9) which is in control connection with the first electrode ring through a overheat switch and a second wiring piece (8) which is in control connection with the second electrode ring through a fuse switch, the other end of the first wiring piece (9) and the second wiring piece extend out of the outside the main shell (1), the overheat switch is a temperature-sensing automatic reset switch, the overheat switch is a temperature-sensing auxiliary switch, the temperature-sensing switch is a temperature-sensing auxiliary switch, the overheat switch is a temperature-sensing fuse-sensing switch, the temperature-sensing switch is higher than the first wiring piece and the first wiring piece (13) and the second wiring piece (13) is connected with the first wiring piece and the second wiring piece (13), and the second wiring piece (13) is connected with the first wiring piece and the second wiring piece (13) and the automatic reset metal-level and the second wiring piece is respectively, and the second wiring piece is connected with the first wiring piece (13) and the second wiring piece is connected with the metal heater and the metal heater A first support piece (14) with a first limiting through hole for supporting a boosting porcelain rod (12) to pass through is arranged, one end of the first reed (13) is fixedly connected with a first electrode ring, a movable end of the other end of the first reed (13) is provided with a first contact matched with a first static contact, the boosting porcelain rod (12) passes through a fixed plate and the limiting through hole to be vertically arranged between the first reed (13) and a bimetallic actuator (11), the movable end of the first reed (13) moves downwards in a linkage way through the boosting porcelain rod (12) when the actuator is actuated to jump downwards, and the first contact on the first reed (13) is disconnected with the first static contact; the utility model provides a fuse switch include fixed melting point and integrated into one piece's insulating fuse rod (21), second reed (23), take spacing through-hole of second to erect between second reed (23) and heating element with supporting insulating fuse rod (21), one end fixed connection second electrode ring of second reed (23), the other end movable end of second reed (23) on have with second stationary contact matched with second contact, fixed plate (2) on open and to have second through-hole (2-2) that supply insulating fuse rod (21) to pass, insulating fuse rod (21) pass second through-hole (2-2) and spacing through-hole of second and erect between second reed (23) and heating element, the temperature sensing of ejecting second through-hole in insulating fuse rod (21) top and heating element promptly, insulating fuse rod (21) fixed melting point be the temperature sensing threshold of fuse switch, second reed (23) support and support second contact and second stationary contact electrical contact connection, when heating element (21) and the temperature-controlled normally closed off and the condition that insulating fuse rod (21) passed through-hole and second limit through-hole contact and heating element contact temperature sensing, the temperature-sensitive element is failed down, the condition that insulating fuse rod (21) is failed to the second contact is down from the insulating fuse rod (21), the second contact is down dropped down to the insulating fuse rod (21).

2. A thermostat for a boiled water bottle as claimed in claim 1 wherein: the insulation fusing rod (21) is provided with a detachable or integrally formed anti-slip device, the anti-slip device is a limiting protrusion (211), and the limiting protrusion (211) is limited below the fixed plate (2) when the insulation fusing rod (21) is erected between the second reed (23) and the heating element.

3. The thermostat for a thermos flask as claimed in claim 2, wherein: the limiting protrusion (211) is arranged at the middle upper part of the insulating fusing rod (21), the limiting protrusion (211) is positioned above the second limiting through hole of the second supporting piece (24) after assembly, the maximum diameter of the limiting protrusion (211) is larger than the diameter of the second through hole (2-2), and the insulating fusing rod (21) is limited through the lower bottom surface of the fixing plate (2) so as to prevent the insulating fusing rod (21) from falling off the temperature controller.

4. The thermostat for a thermos flask as claimed in claim 2, wherein: the limiting bulge (211) is arranged at the middle lower part of the insulating fusing rod (21), the limiting bulge (211) is positioned below a second limiting through hole of the second supporting piece (24) after assembly, the maximum diameter of the limiting bulge (211) is larger than that of the second limiting through hole, and the insulating fusing rod (21) is limited by the lower edge of the second limiting through hole of the second supporting piece (24) so as to prevent the insulating fusing rod (21) from falling off the temperature controller.

5. A thermostat for a water boiling flask as claimed in claim 2 or 3 or 4, wherein: the limiting protrusion (211) is a protruding ring integrally formed with the insulating fusing rod (21).

6. A thermostat for a thermos according to claim 1 or 2 or 3 or 4, characterized in that: the free ends of the first lug (9) and the second lug (8) are arranged in parallel and in the same direction.

7. The thermostat for a boiled water bottle according to claim 5, wherein: the free ends of the first lug (9) and the second lug (8) are arranged in parallel and in the same direction.

8. A thermostat for a thermos according to claim 1 or 2 or 3 or 4, characterized in that: the overheat switch and the fuse switch are respectively arranged on the front surface of the main shell body at the positions far away from the annular shoulder of the penetrating channel, namely, the distance from the center of the overheat switch and the distance from the fuse switch are larger than the maximum outer diameter of the penetrating channel, and the overheat switch and the fuse switch are arranged with an interval therebetween to form independent control.

9. The thermostat for a boiled water bottle according to claim 5, wherein: the overheat switch and the fuse switch are respectively arranged on the front surface of the main shell body at the positions far away from the annular shoulder of the penetrating channel, namely, the distance from the center of the overheat switch and the distance from the fuse switch are larger than the maximum outer diameter of the penetrating channel, and the overheat switch and the fuse switch are arranged with an interval therebetween to form independent control.

10. The thermostat for a boiled water bottle according to claim 6, wherein: the overheat switch and the fuse switch are respectively arranged on the front surface of the main shell body at the positions far away from the annular shoulder of the penetrating channel, namely, the distance from the center of the overheat switch and the distance from the fuse switch are larger than the maximum outer diameter of the penetrating channel, and the overheat switch and the fuse switch are arranged with an interval therebetween to form independent control.