CN210489525U

CN210489525U - Temperature controller with fusing structure

Info

Publication number: CN210489525U
Application number: CN201921677083.2U
Authority: CN
Inventors: 李海洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-06
Filing date: 2019-10-06
Publication date: 2020-05-08
Anticipated expiration: 2029-10-06

Abstract

The utility model provides a temperature controller from area fusing structure, including the casing that has the under shed, L utmost point conducting ring, N utmost point conducting ring, ground post, be fixed in the support at the top of casing and be fixed in at least one temperature sensing contact piece of support, still include the fusing structure of arranging between the top of casing and support, temperature sensing contact piece and fusing structure contact cooperation, L utmost point conducting ring or N utmost point conducting ring and fusing structure contact cooperation, when the temperature of this temperature sensing contact piece is more than or equal to the critical temperature of fusing, temperature sensing contact piece contact fusing structure and messenger temperature controller circuit is in the off-state; when the temperature of the heat-sensitive contact piece is lower than the fusing critical temperature, the heat-sensitive contact piece separates the fusing structure and enables the temperature controller circuit to be in a connected state. The utility model has the fusing function, reduces the installation cost, and can be directly used after being purchased, thereby improving the convenience of use; meanwhile, the installation space can be saved, the circuit interference is avoided, the potential safety hazard is eliminated, and the safety is further improved.

Description

Temperature controller with fusing structure

Technical Field

The utility model belongs to the technical field of little household electrical appliances, a from temperature controller of taking fusing structure is related to.

Background

At present, in a temperature controller in the prior art, for example, the patent number CN201721428981.5, entitled a heating plate, a cooking cup assembly and a cooking machine, specifically discloses a heating plate, a cooking cup assembly and a cooking machine, wherein the cooking machine includes a main body and a cooking cup assembly assembled on the main body; the cooking machine component comprises a cooking cup and a cup seat assembled with the cooking cup, and a first coupler and a heating plate are arranged in the cup seat; the heating plate comprises a plate seat and a heating body arranged on the plate seat, two ends of the heating body are respectively connected with a thermal fuse link in series or one end of the heating body is connected with the thermal fuse link in series and the other end is connected with a manual reset temperature controller in series, and the first coupler is respectively electrically connected with two ends of the heating body. However, there are problems in that: when the user uses the structure, the user needs to additionally purchase and install the thermal fuse link, so that the installation cost is increased, and the user is inconvenient to use.

Therefore, the utility model provides a from temperature controller of taking fusing structure.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problem that prior art exists, the utility model aims to provide a from temperature controller of taking fusing structure has eliminated the vexation that needs purchase in addition and install the fuse, can make the temperature controller of this application from taking fusing function, has reduced installation cost, can directly use after purchasing to the convenience of using has been promoted.

The purpose of the utility model can be realized by the following technical proposal:

a temperature controller with a fusing structure comprises a shell with a lower opening, an L-pole conducting ring, an N-pole conducting ring, a grounding post, a support fixed at the top of the shell, and at least one thermosensitive contact piece fixed on the support, wherein the L-pole conducting ring, the N-pole conducting ring and the grounding post are arranged in the shell; when the temperature of the heat-sensitive contact piece is lower than the fusing critical temperature, the heat-sensitive contact piece separates the fusing structure and enables the temperature controller circuit to be in a communicated state.

As a preferred technical scheme, the fusing structure comprises a first movable contact piece, a first guide post, a support seat, an intermediate movable contact piece and a first static contact piece, wherein one end of the first movable contact piece is fixed on the lower surface of the support, the other end of the first movable contact piece is fixed on one end of the thermosensitive contact piece, the other end of the thermosensitive contact piece extends out of the upper surface of the support, the support seat is fixed on the top of the shell, the first guide post is arranged on the support seat in a sliding manner along the radial direction, two ends of the first guide post are respectively in contact fit with the first movable contact piece and the intermediate movable contact piece, one end of the intermediate movable contact piece is fixed with the L-pole conducting ring or the N-pole conducting ring, and the other end of the.

As a preferred technical solution, the supporting seat includes a circular plate, two symmetrical square plates axially extending along a side wall of the circular plate, and a guide portion disposed on each of the square plates, the circular plate is fixed to the top of the housing, and each of the guide portions is provided with a guide hole for the first guide post to slide.

As a preferable technical scheme, the first static contact is formed by bending a horizontal piece, an inclined piece, a vertical piece and a triangular arc piece integrally, a partition plate extends from the side wall of the square plate close to the guide part, the partition plate close to the upper part of the guide part is arranged upwards along the radial direction, and the partition plate far away from the upper part of the guide part is arranged downwards along the radial direction;

the square plate and the partition plate positioned below the square plate enclose a cavity, the vertical piece and the triangular arc piece are arranged in the cavity, and one part of the horizontal piece and the inclined piece extend out of the cavity.

As a preferable technical scheme, the end part of the first movable contact piece, the end part of the middle movable contact piece and the end part of the first static contact piece are respectively provided with a contact, the contact of the first movable contact piece is in contact fit with the heat-sensitive contact piece, and the contact of the middle movable contact piece is in contact fit with the contact of the first static contact piece.

Preferably, the first guide column is made of a plastic material.

As a preferred technical scheme, the fusing structure comprises two plate bodies, a connecting plate, a spring, a second movable contact piece and a second static contact piece fixed on the top of the shell, the two plate bodies are arranged on the top of the shell in an alternating and symmetrical manner, two side walls of the connecting plate are pivoted between the two plate bodies, one end of the thermosensitive contact piece is fixed on one end of the connecting plate, the other end of the thermosensitive contact piece extends out of the upper surface of the support, the other end of the connecting plate is in contact fit with the second movable contact piece, the spring is sleeved on the outer side wall of the thermosensitive contact piece, one end of the second movable contact piece is fixed with the L-pole conducting ring or the N-pole conducting ring, and the other end of the second movable contact piece is in contact fit with the.

The heat-sensitive metal contact piece is in contact fit with the heat-sensitive contact piece.

Preferably, the heat sensitive contact piece is made of a plastic material.

Preferably, the end of the connecting plate, the end of the second movable contact piece and the end of the second fixed contact piece are respectively provided with a contact, the contact of the connecting plate is in contact fit with the second movable contact piece, and the contact of the second movable contact piece is in contact fit with the contact of the second fixed contact piece.

As above, the utility model relates to a from temperature controller of taking fusing structure has following beneficial effect:

after the temperature controller with the fusing structure is utilized, the fusing structure is arranged between the top of the shell and the bracket, and when the temperature of the thermosensitive contact piece is more than or equal to the fusing critical temperature, the thermosensitive contact piece is contacted with the fusing structure and a temperature controller circuit is in a disconnected state; when the temperature of the thermal contact piece is lower than the fusing critical temperature, the thermal contact piece separates the fusing structure and enables the temperature controller circuit to be in a connected state; compared with the prior art, the trouble that a fuse needs to be additionally purchased and installed is eliminated, the temperature controller has the fusing function, the installation cost is reduced, and the temperature controller can be directly used after being purchased, so that the use convenience is improved; simultaneously compare in external fuse structure, can save overall structure's installation space, avoid the circuit interference, eliminate the potential safety hazard, so further promote the security.

The present invention will be further described with reference to the following embodiments.

Drawings

FIG. 1 is a perspective view of a thermostat with a fuse structure according to a first embodiment;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is an exploded view of a thermostat with a fuse structure according to a first embodiment;

FIG. 4 is an enlarged view of a supporting base of a thermostat with a fuse structure according to a first embodiment;

FIG. 5 is a perspective view of a thermostat with a fuse structure according to a second embodiment;

FIG. 6 is a schematic diagram of a portion of a second embodiment of a thermostat with a fuse structure;

FIG. 7 is a side view of a second embodiment of a thermostat with a fuse structure.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present application are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, change of the ratio relationship or adjustment of the sizes should still fall within the scope of the present invention without affecting the functions and the achievable purposes of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered as the scope of the present invention without substantial changes in the technical content. The specific structure can be explained with reference to the drawings of the patent application.

In the following embodiments, the direction is defined by the arrow in fig. 1, the left side of the paper surface is the left direction, the right side of the paper surface is the right direction, the upper side of the paper surface is the upper direction, the lower side of the paper surface is the lower direction, the front side perpendicular to the paper surface is the front direction, the rear side perpendicular to the paper surface is the rear direction, the inner cavity of the housing is the inside, and the outer wall of the housing is the outside.

Referring to fig. 1 to 7, a temperature controller with a fusing structure includes a housing 1 having a lower opening 10, an L-pole conductive ring 2, an N-pole conductive ring 3, a grounding post 4, a bracket 5 fixed to the top of the housing 1, and at least one thermal contact 6 fixed to the bracket 5, where the L-pole conductive ring 5, the N-pole conductive ring 3, and the grounding post 4 are all disposed in the housing 1, and further includes a fusing structure 7 disposed between the top of the housing 1 and the bracket 5, the thermal contact 6 is in contact with the fusing structure 7, the L-pole conductive ring 2 or the N-pole conductive ring 3 is in contact with the fusing structure 7, and when the temperature of the thermal contact 6 is greater than or equal to a fusing critical temperature, the thermal contact 6 is in contact with the fusing structure 7 and makes a circuit of the temperature controller in a disconnected state; when the temperature of the heat-sensitive contact piece 6 is lower than the fusing critical temperature, the heat-sensitive contact piece 6 separates the fusing structure 7 and enables the temperature controller circuit to be in a connected state. Compared with the prior art, the utility model eliminates the trouble of additionally purchasing and installing a fuse, can lead the temperature controller of the application to have the fusing function, reduces the installation cost, and can be directly used after purchasing, thereby improving the convenience of use; simultaneously compare in external fuse structure, can save overall structure's installation space, avoid the circuit interference, eliminate the potential safety hazard, so further promote the security.

For the fuse structure 7, the present invention has two specific embodiments, but is not limited thereto.

The utility model discloses a fuse structure 7's embodiment one sees below.

As shown in fig. 1 to 4, the fuse structure 7 includes a first movable contact piece 70, a first guide post 71, a support seat 72, an intermediate movable contact piece 73, and a first fixed contact piece 74, wherein one end of the first movable contact piece 74 is fixed to the lower surface of the support 5, the other end of the first movable contact piece is fixed to one end of the thermal contact piece 6, the other end of the thermal contact piece 6 extends out of the upper surface of the support 5, the support seat 72 is fixed to the top of the housing 1, the first guide post 71 is slidably disposed in the support seat 72 in the radial direction, two ends of the first guide post 71 are respectively in contact fit with the first movable contact piece 74 and the intermediate movable contact piece 73, one end of the intermediate movable contact piece 73 is fixed to the L-pole conductive ring 2 or the N-pole conductive ring 3, and the other end of the intermediate movable contact.

For the working principle of the fusing structure: as shown in fig. 1 to 4, when the temperature of the thermal contact piece 6 is greater than or equal to the critical fusing temperature due to thermal expansion and contraction of the thermal contact piece 6, the thermal contact piece 6 expands to contact the first contact piece 70 of the fusing structure 7, so that the first contact piece 70 generates downward pressure and the pressure moves the first guide post 71 downward in the radial direction, and the lower end of the first guide post 71 contacts and presses the intermediate movable contact piece 73 to move downward, so that the end of the intermediate movable contact piece 70 is separated from the end of the first stationary contact piece 74, thereby achieving the open state of the thermostat circuit; in the same way, on the contrary, under the action of thermal expansion and cold contraction of the thermal-sensitive contact piece 6, when the temperature of the thermal-sensitive contact piece 6 is lower than the fusing critical temperature, the thermal-sensitive contact piece 6 separates the fusing structure 7 and enables the temperature controller circuit to be in a communicated state. Through the process, the electric heater can be protected when the water evaporation caused by long-time water addition is avoided and the dry-burning state finally occurs, so that dangerous accidents such as fire disasters and the like can be avoided. It should be noted that: at normal temperature, the end of the intermediate movable contact piece 73 and the end of the first fixed contact piece 74 of the fuse structure 7 are normally closed.

As shown in fig. 3 and 4, the support base 72 includes a circular plate 720, two symmetrical square plates 721 axially extending along a side wall of the circular plate 720, and a guide portion 722 provided on each of the square plates 721, the circular plate 720 is fixed to the top of the housing 1, and each of the guide portions 722 is provided with a guide hole 7220 for the first guide post 71 to slide. Through the supporting seat 72 that sets up aforementioned structure, especially set up the guide effect that guide part 722 played, help the realization radial slide of first guide post, ensure the utility model discloses a going on smoothly of whole action to the card pause appears in order to avoid appearing, promotes continuity, the smooth and easy nature of action.

As shown in fig. 3 and 4, the first static contact 74 is formed by bending a horizontal piece 740, an inclined piece 741, a vertical piece 742, and a triangular arc piece 743 integrally, a partition 723 extends from a side wall of the square plate 721 close to the guide portion 722, the partition 723 close to the upper portion of the guide portion 722 is arranged upward in the radial direction, and the partition 723 far from the upper portion of the guide portion 722 is arranged downward in the radial direction;

the square plate 721 and the partition 722 below the square plate 721 are enclosed to form a cavity 724, the vertical piece 742 and the triangular arc piece 743 are disposed in the cavity 724, and a part of the horizontal piece 740 and the inclined piece 741 extend out of the cavity 724. The first static contact piece 74 and the partition 723 which are in the structure are arranged, so that the first static contact piece 74 is limited, the contact end part between the middle movable contact piece 73 and the first static contact piece 74 is prevented from being deviated, and the contact matching action is more accurate and smooth.

As shown in fig. 3, the end of the first movable contact piece 70, the end of the intermediate movable contact piece 73 and the end of the first fixed contact piece 74 are respectively provided with a contact 8, the contact 8 of the first movable contact piece 70 is in contact fit with the heat sensitive contact piece 6, and the contact 8 of the intermediate movable contact piece 73 is in contact fit with the contact 8 of the first fixed contact piece 74. The contact 8 with the structure can make contact points more concentrated, so that the trigger action can be more rapidly and sensitively realized, and delay is avoided.

As shown in fig. 3, the first guide post 71 is made of a single piece of plastic material.

The utility model discloses a concrete embodiment two of fusing structure sees below.

Referring to fig. 5 to 7, the fuse structure 7 includes two plate bodies 75, a connecting plate 76, a spring 77, a second movable contact piece 78, and a second stationary contact piece 79 fixed to the top of the housing 1, the two plate bodies 75 are alternately and symmetrically disposed on the top of the housing 1, two side walls of the connecting plate 76 are pivotally connected between the two plate bodies 75, one end of the thermal contact piece 6 is fixed to one end of the connecting plate 76, the other end of the thermal contact piece 6 extends out of the upper surface of the bracket 5, the other end of the connecting plate 76 is in contact with the second movable contact piece 78, the spring 77 is sleeved on the outer side wall of the thermal contact piece 6, one end of the second movable contact piece 78 is fixed to the L-pole conductive ring 2 or the N-pole conductive ring 3, and the other end of the second movable contact piece 78 is in contact with the second stationary contact piece.

For the working principle of the fusing structure: as shown in fig. 5 to 7, under the action of thermal expansion and contraction of the thermal contact piece 6, when the temperature of the thermal contact piece 6 is greater than or equal to the critical fusing temperature, the thermal contact piece 6 moves away from the top of the housing 1 due to expansion to compress the spring 77, the thermal contact piece 6 drives one side of the connecting plate 76 to tilt up with the plate 75 as a fulcrum, and the other side of the connecting plate 76 moves toward the top of the housing 1, so that the other side of the connecting plate 76 presses the second movable contact piece 78 downward, and the end of the second movable contact piece 78 is separated from the end of the second static contact piece 79, thereby achieving that the temperature controller circuit is in an off state; in the same way, on the contrary, under the action of thermal expansion and contraction of the thermal contact 6, when the temperature of the thermal contact 6 is lower than the critical fusing temperature, the thermal contact 6 moves towards the top direction of the shell 1 due to the recovery action of the spring 77, and finally the temperature controller circuit is in a connected state. Through the process, the electric heater can be protected when the water evaporation caused by long-time water addition is avoided and the dry-burning state finally occurs, so that dangerous accidents such as fire disasters and the like can be avoided. It should be noted that: at normal temperature, the end of the second movable contact piece 78 and the end of the second fixed contact piece 79 of the fusing structure are in a normally open state.

As shown in fig. 5, the heat-sensitive metal contact piece device further comprises a heat-sensitive metal contact piece 9, wherein the heat-sensitive metal contact piece 9 is in contact fit with the heat-sensitive contact piece 6.

As shown in fig. 5, 6 or 7, the thermal contact blade 6 is made of a plastic material.

As shown in fig. 6 and 7, the end of the connecting plate 76, the end of the second movable contact piece 78, and the end of the second fixed contact piece 79 are each mounted with a contact 8, the contact 8 of the connecting plate 76 is in contact engagement with the second movable contact piece 78, and the contact 8 of the second movable contact piece 78 is in contact engagement with the contact 8 of the second fixed contact piece 79. The contact 8 with the structure can make contact points more concentrated, so that the trigger action can be more rapidly and sensitively realized, and delay is avoided.

It should be noted that: the first embodiment and the second embodiment of the utility model can be used in small household appliances, such as electric heating kettles, electric heating cups, electric cooking pots, electric cooking teapots, etc.

To sum up, the utility model discloses various shortcomings in the prior art have effectively been overcome and high industry value has.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a from temperature controller of taking fusing structure, is including having open-ended casing, L utmost point conducting ring, N utmost point conducting ring, earth post down, being fixed in the support at the top of casing and being fixed in at least one temperature sensing contact of support, in the casing is all arranged in to L utmost point conducting ring, N utmost point conducting ring and earth post, its characterized in that: the temperature-sensitive contact piece is in contact fit with the fusing structure, and when the temperature of the temperature-sensitive contact piece is greater than or equal to the fusing critical temperature, the temperature-sensitive contact piece is in contact fit with the fusing structure and enables the temperature controller circuit to be in a disconnected state; when the temperature of the heat-sensitive contact piece is lower than the fusing critical temperature, the heat-sensitive contact piece separates the fusing structure and enables the temperature controller circuit to be in a communicated state.

2. The thermostat with fusing structure of claim 1, wherein: the fusing structure comprises a first movable contact piece, a first guide post, a supporting seat, an intermediate movable contact piece and a first static contact piece, wherein one end of the first movable contact piece is fixed on the lower surface of the support, the other end of the first movable contact piece is fixed on one end of the thermosensitive contact piece, the other end of the thermosensitive contact piece extends out of the upper surface of the support, the supporting seat is fixed on the top of the shell, the first guide post is arranged on the supporting seat in a sliding mode along the radial direction, two ends of the first guide post are respectively in contact fit with the first movable contact piece and the intermediate movable contact piece, one end of the intermediate movable contact piece is fixed with the L-pole conducting ring or the N-pole conducting ring, and the other end of the.

3. The thermostat with fusing structure of claim 2, wherein: the supporting seat comprises a circular plate, two symmetrical square plates and a guide portion, the two symmetrical square plates axially extend along the side wall of the circular plate, the guide portion is arranged on each square plate, the circular plate is fixed at the top of the shell, and each guide portion is provided with a guide hole for the first guide column to slide.

4. The thermostat with fusing structure of claim 3, wherein: the first static contact piece is formed by bending a horizontal piece, an inclined piece, a vertical piece and a triangular arc piece integrally, a partition plate extends from the side wall of the square plate close to the guide part, the partition plate close to the upper part of the guide part is arranged upwards along the radial direction, and the partition plate far away from the upper part of the guide part is arranged downwards along the radial direction;

5. The thermostat with fusing structure of any one of claims 2-4, wherein: the end part of the first movable contact piece, the end part of the middle movable contact piece and the end part of the first static contact piece are respectively provided with a contact, the contact of the first movable contact piece is in contact fit with the thermosensitive contact piece, and the contact of the middle movable contact piece is in contact fit with the contact of the first static contact piece.

6. The thermostat with fusing structure of any one of claims 2-4, wherein: the first guide post is made of a plastic material and is made of a single piece.

7. The thermostat with fusing structure of claim 1, wherein: the fusing structure comprises two plate bodies, a connecting plate, a spring, a second movable contact piece and a second static contact piece fixed at the top of the shell, the two plate bodies are arranged at the top of the shell in an alternating and symmetrical mode, two side walls of the connecting plate are pivoted between the two plate bodies, one end of the thermosensitive contact piece is fixed at one end of the connecting plate, the other end of the thermosensitive contact piece extends out of the upper surface of the support, the other end of the connecting plate is in contact fit with the second movable contact piece, the spring is sleeved on the outer side wall of the thermosensitive contact piece, one end of the second movable contact piece is fixed with the L-pole conducting ring or the N-pole conducting ring, and the other end of the second movable contact piece is in contact fit with the.

8. The thermostat with fusing structure of claim 7, wherein: the temperature-sensitive metal contact piece is in contact fit with the temperature-sensitive contact piece.

9. The thermostat with fusing structure of claim 7, wherein: the heat-sensitive contact piece is an integrated piece made of plastic materials.

10. A thermostat with self-fusing structure as claimed in any one of claims 7-9, wherein: and the end part of the connecting plate, the end part of the second movable contact piece and the end part of the second static contact piece are respectively provided with a contact, the contact of the connecting plate is in contact fit with the second movable contact piece, and the contact of the second movable contact piece is in contact fit with the contact of the second static contact piece.