CN218670873U - Overheat protection switch with power-off restart function and electric heating type faucet - Google Patents

Abstract

The utility model discloses an overheat protection switch with power-off restarting function and an electric heating type faucet, which comprises a metal heat conductor, a heat protector and a push switch; the metal heat conductor is used for conducting the temperature of the water in the heating cavity to the heat protector; the thermal protector comprises a restart switch, is connected with a heating circuit of the heating type water faucet and can be communicated with or cut off the heating circuit; the push switch is used for jacking and connecting the restart switch so as to start a heating circuit of the heating faucet to work; according to the overheating protection system, the thermal protector is not only used as a protection element when the temperature is too high, and when a heating program needs to be restarted, the restart switch on the thermal protector can be pressed through the press switch, so that the heating component is further controlled to restart for heating. Based on the thermal protector, a dual control logic of disconnection and restart is formed, and the thermal protector is simple in structure and convenient to operate.

Description

Overheat protection switch with power-off restarting function and electric heating type faucet

Technical Field

The utility model relates to a tap field, especially an electric heat formula tap's overheat protection switch, when electric heat formula tap's heating water cavity is overheated, but overheat protection switch disconnection heating circuit to but restart heating work.

Background

The instant heating type faucet has the characteristics of convenience in installation and rapid hot water discharge, and is popular with consumers; is widely installed on kitchens and bath basins.

The intelligent control device for the instant heating type faucet with the publication number of CN102537468A comprises a shell with a water passing cavity, a switch valve arranged on the upper portion of the shell and a controller arranged on the lower portion of the shell, wherein an electric heating piece electrically connected with the controller is arranged in the shell.

The instant heating type water faucet with the publication number of CN102808992A comprises an upper heating pipe shell, a lower heating pipe shell, a silica gel flow guide column and a glass heating pipe.

The existing overheating protection switch of the instant heating type faucet mostly adopts a thermal fusing fuse, and the fuse is in contact connection with a heating pipe in a heating cavity; when the heating cavity is empty and burnt, the fuse can be fused when the heat of the heating pipe exceeds 120-130 ℃, and then the heating circuit is cut off, so that the heating pipe is prevented from being burnt due to overheating or the heating cavity is prevented from being cracked.

The above-described fuse approach has the following problems: in order to enable the instant heating type faucet to be reused, certain professional skills are needed for replacing the fuse, and a user is not willing to go to replace the fuse in person; the cost of merchants offering after-market services is relatively high.

SUMMERY OF THE UTILITY MODEL

In order to solve the inconvenience that the fuse of changing instant heating type tap brought, the utility model provides an overheat protection switch with function is restarted in outage, give hot protector through the hydrothermal conduction of heat-conducting component in with the heating chamber, make hot protector cut off heating circuit, treat the temperature cooling back, trigger hot protector through the switch and restart heating circuit.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the overheat protection switch with power-off restart comprises a metal heat conductor, a thermal protector and a push switch; the metal heat conductor is used for conducting the temperature of water in the heating cavity to the thermal protector;

the thermal protector comprises a restart switch, is connected with a heating circuit of the heating type water faucet and can be used for connecting or disconnecting the heating circuit;

and the press switch is used for being connected with the restart switch in a jacking and pressing mode so as to start a heating circuit of the heating faucet to work.

The utility model discloses further preferred technical scheme does: the metal heat conductor includes an inner cavity that receives and closely contacts the thermal protector, and the thermal protector is disposed in the inner cavity.

The utility model discloses further preferred technical scheme does: the push switch comprises an ejector rod and a button, the inner end of the ejector rod extends to and contacts the restart switch of the thermal protector, the outer end of the ejector rod extends out of the shell of the heating faucet, and the button is sleeved at the outer end of the ejector rod.

The utility model discloses further preferred technical scheme does: the overheat protection switch for power failure restart further comprises a mandril guide seat;

the ejector rod guide seat comprises a connecting seat and a cylinder body with a guide hole;

the connecting seat is fixed on the metal heat conductor and limits the opening end of the inner cavity so as to prevent the thermal protector from separating from the inner cavity of the metal heat conductor;

the inner end of the ejector rod penetrates through the guide hole of the column body to press the restart switch of the thermal protector.

The utility model discloses further preferred technical scheme does: the inner section of the column body is located on the inner side of the connecting seat, the outer section of the column body is located on the outer side of the connecting seat, and the inner end of the column body abuts against the thermal protector to limit the thermal protector to move.

Another theme: the overheating protection switch with power-off restarting is arranged in an installation main body of the water faucet and comprises a metal heat conductor, a thermal protector, a press switch and an ejector rod guide seat;

the metal heat conductor receives the water temperature in the heating cavity; the metal heat conductor is in close contact with the thermal protector to transfer the water temperature in the heating cavity;

the thermal protector comprises a restart switch; the push switch comprises a push rod and a button; the ejector rod guide seat comprises a connecting seat and a hollow cylinder;

in the first state, when the temperature received by the thermal protector is greater than a threshold value, the thermal protector cuts off the heating circuit; in the second state, the ejector rod penetrates through the hollow cylinder to push the restart switch, so that the thermal protector restarts the heating circuit.

The utility model discloses further preferred technical scheme does: the metal heat conductor comprises an annular base and vertical heat conducting strips distributed on two sides of the annular base, and a containing area with depth is formed between the inner surfaces of the two vertical heat conducting strips and the upper surface of the annular base; the thermal protector is arranged in the accommodating area.

The utility model discloses further preferred technical scheme does: connecting lugs extend outwards from the upper ends of the two vertical heat conducting strips, two ends of the connecting seat are fixedly connected with the connecting lugs, and the inner wall of the connecting seat limits the outer opening end of the accommodating area;

the cylinder on the inner side of the connecting seat is positioned on the inner side of the outer opening end, and the cylinder on the outer side of the connecting seat is positioned on the outer side of the outer opening end; and the inner end of the column body is pressed against the thermal protector.

The utility model discloses further preferred technical scheme does: the cylinder is hollow so as to form a guide channel, the restart opening Guan Shenzhi is arranged in the guide channel where the cylinder on the inner side of the connecting seat is located, and the ejector rod extends into the guide channel along the outer end of the guide channel until the ejector rod acts on the restart switch.

The utility model discloses further preferred technical scheme does: the outer end of the ejector rod extends to the outer side of the mounting main body, and the button is sleeved at the outer end of the ejector rod;

the metal heat conductor, the thermal protector, the ejector rod guide seat and the press switch are sequentially and transversely arranged in the installation column body.

Another subject is: the instant heating type water faucet comprises an installation main body, a heating component, a water outlet pipe and an overheat protection switch with power-off restart;

the installation main part includes heating chamber and control chamber, heating element installs in the heating chamber, and overheat protection switch installs in the control chamber, and at least some stretches into of overheat protection switch's metal heat conductor in the heating chamber to receive the temperature of the intracavity of heating.

Another preferred subject matter: the instant heating type water faucet comprises an installation main body, a heating component, a water outlet pipe and an overheat protection switch with power-off restart;

the installation main part includes heating chamber and control chamber, heating element installs in the heating chamber, and overheat protection switch installs the control intracavity, and at least some stretches into of overheat protection switch's metal heat conductor the heating intracavity to receive the temperature of the temperature in the heating chamber.

Compared with the prior art, the utility model has the advantages that: 1. the metal heat conductor is in close contact with the thermal protector so as to transfer heat received by the metal heat conductor in the heating cavity to the thermal protector, and when the temperature received by the thermal protector is higher than a threshold value, the thermal protector can disconnect a heating circuit and stop heating the heating assembly; along with the temperature reduction, a user can press the reset switch through the pressing switch, so that the heating circuit controls the heating component to heat again. According to the overheat protection system, the thermal protector is not only used as a protection element when the temperature is too high, but also can cut off the heating circuit, and when a heating program needs to be restarted, the restart switch on the thermal protector can be pressed through the press switch, so that the heating component is further controlled to restart for heating. Based on the same thermal protector, a dual control logic of disconnection and restart is formed, and the thermal protector is simple in structure and convenient to operate.

2. Furthermore, when the thermal protector is restarted, the press switch is guided by the ejector rod guide seat to push the restart switch, so that the stability and controllability of the operation of pushing the press switch by the rod piece are improved; further enhancing the stability of the overheat protection system.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of the overall structure of an instant heating faucet;

FIG. 2 is a schematic view of the disassembled internal structure of the instant heating faucet;

FIG. 3 is a side sectional view of a portion of the tankless faucet;

FIG. 4 is a partial schematic view of the interior of the tankless faucet;

FIG. 5 is a disassembled view of the overheat protection switch;

FIG. 6 is a cross-sectional view of the assembled overheat protection switch;

fig. 7 is a block diagram of a thermal protector control heating assembly.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined or explained in subsequent figures.

As shown in fig. 1 to 3, the tankless water faucet 200 includes a mounting body 201, the mounting body 201 includes a heating cavity 102, a control cavity 106, a water outlet pipe 103, and an overheat protection switch 100 with power-off restart, the water outlet pipe 103 is communicated with the heating cavity 102, and a heating element 104 is installed in the heating cavity 102. The control handle 202 is mounted on the side of the outlet pipe 103. An over-temperature protection switch with power-off restart is installed in the control chamber 106.

Additionally, it should be noted that the thermal protection switch 100, which is mounted within the control chamber 106 and is used to receive the components of the temperature within the heating chamber 102, is located at least partially within the heating chamber 102 to receive the temperature within the heating chamber 102. In the embodiment, at least a portion of the metal heat conductor 10 of the overheating protection switch 100 contacts with the water in the heating chamber 102 to receive the temperature of the water.

In view of the technical problems in the prior art that the overheat protection has trouble repairing and restarting the control circuit and is not easy to operate, the present embodiment develops an overheat protection switch which is easy to operate and sensitive to control, specifically:

as shown in fig. 3 to 7, the overheating protection switch 100 with power-off restart, which is installed in the faucet heating chamber 102, includes a metal heat conductor 10, a thermal protector 20, a push switch 30, and a plunger guide 40.

And preferably, the metal heat conductor 10, the thermal protector 20, the stem guide 40, and the push switch 30 are arranged laterally in sequence in the control chamber 106.

At least a portion of the metal thermal conductor 10 extends into the heating chamber 102 to receive the temperature of the water within the heating chamber 102. The thermal protector 20 is in close contact with the metal heat conductor 10 to transfer the temperature of the water in the heating chamber 102.

In the present embodiment, the thermal protector 20 is connected to the heating circuit 105, and preferably, the thermal protector 20 is connected to the heating circuit 105 through a wire s.

The ejector guide seat 40 includes a connecting seat 42 and a hollow column 41, and the hollow column 41 forms a guide channel 43. The push switch 30 comprises a push rod 31 and a button 32, and the push rod 31 can extend along the outer end of the guide channel 43 until acting on the reset switch 21. Of course, the column 41 may also have a structure with a smaller length, and in this case, the guide channel formed on the column 41 may be further understood as a guide hole or a through hole to allow the ejector rod 31 to pass through.

In the first state, when the temperature of the water in the heating cavity 102 received by the thermal protector 20 through the metal heat conductor 10 is higher than a preset threshold, the thermal protector 20 controls the heating circuit 105 to stop heating. Preferably, the threshold value of the water temperature is about 90 degrees. Furthermore, the thermal protector 20 comprises a restart switch 21. When the heating is required to be restarted, in the second state, the push switch 30 penetrates through the push rod guide seat 40 to push the restart switch 21, and after the restart switch 21 is restarted, the thermal protector 20 controls the heating circuit 105 to heat again.

It should be further explained that the metal heat conductor 10 includes an annular base 11 and vertical heat conducting strips 12 distributed on two sides of the annular base 11, and a receiving area f with a depth is formed between the inner surfaces of the two vertical heat conducting strips 12 and the upper surface of the annular base 11.

Preferably, the vertical heat conducting strips 12 are arc-shaped structures, and the inner walls of the vertical heat conducting strips 12 are arc-shaped walls. Correspondingly, the outer wall of the thermal protector 20 is also in an arc structure, so that the thermal protector 20 can be more attached to the vertical heat conducting strip 12, the heat transfer is ensured, and the water temperature of the sensitive induction heating cavity 102 is reached.

The thermal protector 20 is disposed in the accommodating area f, and the height of the thermal protector 20 is equal to the depth of the accommodating area f. So that the thermal protector 20 can be in sufficient contact with the metal heat conductor 10 to more accurately receive the temperature of the water from the heating chamber 102.

Of course, the specific structure of the metal heat conductor 10 is not limited to the above-described technical means. The metal heat conductor 10 may also be a cylindrical structure having an inner cavity, the inner cavity has a depth enough to accommodate the thermal protector 20, and the metal heat conductor 10 is in close contact with the inner cavity of the metal heat conductor 10.

Further, the ram guide 40 includes a connecting seat 42 and a column 41. The upper ends of the two vertical heat conducting bars 12 extend outwards to form connecting lugs 13, two ends of the connecting base 42 are fixedly connected with the connecting lugs 13, and the inner wall of the connecting base 42 limits the outer opening end f' of the accommodating area f.

The column 41 at the inner side of the connecting seat 42 is positioned at the inner side of the outer opening end f ', and the column 41 at the outer side of the connecting seat 42 is positioned at the outer side of the outer opening end f'; and the inner end of post 41 rests on thermal protector 20. The cylinder 41 located inside the outer opening end f 'is an inner section 01, and the cylinder 41 located outside the outer opening end f' is an outer section 02.

Further, the reset switch 21 extends into the guiding channel 43 of the inner column 41 of the connecting seat 42, that is, into the guiding channel 43 of the inner section 01. The push switch 30 includes a push rod 31 and a button 32, and the push rod 31 extends along the outer end of the guide channel 43 until acting on the reset switch 21.

The outer end of the push rod 31 extends to the outer side of the mounting main body 201, namely the outer side of the faucet shell, and the button 32 is sleeved on the outer end of the push rod 31. When it is desired to restart the heating circuit, the user can quickly press the button 32 exposed to the outside. Preferably, the button 32 is made of a silicone material.

The utility model has the advantages that: the metal heat conductor 10 is in close contact with the thermal protector 20 to transfer heat received by the metal heat conductor 10 to the thermal protector 20, and when the temperature received by the thermal protector 20 is higher than a threshold value, the thermal protector 20 will disconnect the heating circuit 105 and stop heating the heating element 104.

As the temperature decreases, the user may press the reset switch 21 by pressing the switch 30 to cause the heating circuit 105 to re-control the heating of the heating element 104. In the overheat protection system, the thermal protector 20 is not only used as a protection element when the temperature is too high, but also used for cutting off the heating circuit, and when the heating program needs to be restarted, the restart switch 21 on the thermal protector 20 can be pressed by the push switch 30, so that the heating component 105 is further controlled to restart and heat. Based on the same thermal protector 20, a dual control logic of disconnection and restart is formed, and the structure is simple and convenient to operate.

The thermal protector 20 is not only a control switch for cutting off the heating circuit 105 but also a control switch for controlling the restart of the heating circuit 105. In other words, it is not necessary to control the heating circuit 105 to restart through another control switch, and it is not necessary to add another set of control logic.

Further, when the thermal protector 20 is restarted, the push switch 30 is guided by the push rod guide seat 40 to push the restart switch 21, so that the stability and controllability of the lever for pushing the switch are improved; further enhancing the stability of the overheat protection system.

Preferably, as shown in fig. 4, a grounding copper sheet r is sleeved on the heating pipe t of the heating assembly 104, and meanwhile, the grounding copper sheet r is connected with the metal heat conductor 10; the grounding copper sheet r is connected with a grounding wire to realize the grounding of the electric appliance and avoid accidents caused by electric leakage.

It should be further explained that the metal heat conductor 10 in this embodiment is made of aluminum material, which makes it easier to conduct heat, and thus makes the entire overheat protection system more accurate and sensitive to temperature.

Further, the thermal protector 20 may be a snap-through protector in the prior art, and the specific structure and operation principle thereof will not be described in detail in this embodiment. Those skilled in the art can directly use commercially available snap-through protectors or simply change the shape to match the mounting layout of the present embodiment.

For the instant heating faucet as a whole, an inlet pipe connected to a tap water line is connected to the mounting body 201 to introduce a water source. The water flow enters the heating cavity 102 of the installation body 201 through the water inlet pipe, the heating assembly 104 heats the water, and when the threshold value is reached, the overheating protection switch will turn off the heating circuit. The water heated to a suitable temperature flows out through the water outlet pipe 103 communicating with the heating chamber 102 for the user to perform the cleaning work.

Preferably, the outlet pipe 103 includes therein a cold water pipe through which hot water in the heating chamber 102 flows out, and a hot water pipe through which tap water introduced from the inlet pipe is communicated to discharge cold water.

Correspondingly, the control handle 202 includes a handle and a change valve that controls the switching of the flow of hot and cold water. When cold water is needed, the handle is rotated to the cold water position, and the reversing valve opens water flow with natural water temperature introduced from the water inlet pipe and flows out through the cold water pipeline.

It is right above the utility model provides an overheated protective switch and electric heat formula tap with outage restart function have carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been elucidated, and the description of above embodiment is only used for helping the assistant the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (12)

1. Overheat protection switch with outage restart characterized in that: comprises a metal heat conductor, a thermal protector and a push switch;

the metal heat conductor is used for conducting the temperature of water in the heating cavity to the thermal protector;

the thermal protector comprises a restart switch, is connected with a heating circuit of the heating type water faucet and can be used for connecting or disconnecting the heating circuit;

and the press switch is used for being connected with the restart switch in a jacking and pressing mode so as to start a heating circuit of the heating faucet to work.

2. The power-off restart overheat protection switch according to claim 1, wherein: the metal heat conductor includes an inner cavity that receives and closely contacts the thermal protector, and the thermal protector is disposed in the inner cavity.

3. The power-off restart overheat protection switch according to claim 1, wherein: the push switch comprises an ejector rod and a button, the inner end of the ejector rod extends to and contacts the restart switch of the thermal protector, the outer end of the ejector rod extends out of the shell of the heating faucet, and the button is sleeved at the outer end of the ejector rod.

4. The power-off restarting overheating protection switch according to claim 3, further comprising a plunger guide seat;

the ejector rod guide seat comprises a connecting seat and a cylinder body with a guide hole;

the connecting seat is fixed on the metal heat conductor and limits the opening end of the inner cavity so as to prevent the thermal protector from separating from the inner cavity of the metal heat conductor;

the inner end of the ejector rod penetrates through the guide hole of the column body to press the restart switch of the thermal protector.

5. The power-off restart overheat protection switch according to claim 4, wherein: the inner section of the column body is positioned on the inner side of the connecting seat, the outer section of the column body is positioned on the outer side of the connecting seat, and the inner end of the column body is propped against the thermal protector so as to limit the movement of the thermal protector.

6. Overheat protection switch with outage restart installs in tap's installation main part, its characterized in that: comprises a metal heat conductor, a thermal protector, a press switch and an ejector rod guide seat;

the metal heat conductor receives the water temperature in the heating cavity, and the metal heat conductor is in close contact with the thermal protector to transfer the water temperature in the heating cavity;

the thermal protector comprises a restart switch; the push switch comprises a mandril and a button; the ejector rod guide seat comprises a connecting seat and a hollow column body;

in the first state, when the temperature received by the thermal protector is greater than a threshold value, the thermal protector cuts off the heating circuit; in the second state, the ejector rod penetrates through the hollow cylinder to push the restart switch, so that the thermal protector restarts the heating circuit.

7. The over-temperature protection switch with power-off restart of claim 6, wherein: the metal heat conductor comprises an annular base and vertical heat conducting strips distributed on two sides of the annular base, and a containing area with depth is formed between the inner surfaces of the two vertical heat conducting strips and the upper surface of the annular base; the thermal protector is arranged in the accommodating area.

8. The over-temperature protection switch with power-off restart of claim 7, wherein:

the upper ends of the two vertical heat conducting strips extend outwards to form connecting lugs, two ends of the connecting seat are fixedly connected with the connecting lugs, and the inner wall of the connecting seat limits the outer opening end of the accommodating area;

the column body on the inner side of the connecting seat is positioned on the inner side of the outer opening end, and the column body on the outer side of the connecting seat is positioned on the outer side of the outer opening end; and the inner end of the column body is pressed against the thermal protector.

9. The over-temperature protection switch with power-off restart of claim 8, wherein: the cylinder is hollow so as to form a guide channel, the restart opening Guan Shenzhi is arranged in the guide channel where the cylinder on the inner side of the connecting seat is located, and the ejector rod extends into the guide channel along the outer end of the guide channel until acting on the restart switch.

10. The over-temperature protection switch with power-off restart of claim 9, wherein: the outer end of the ejector rod extends to the outer side of the mounting main body, and the button is sleeved at the outer end of the ejector rod;

the metal heat conductor, the thermal protector, the ejector rod guide seat and the press switch are sequentially and transversely arranged in the cylinder body.

11. Electric heating type tap, its characterized in that: comprises a mounting body, a heating component, a water outlet pipe and an overheat protection switch with power-off restart according to any one of claims 1 to 5;

the installation main part includes heating chamber and control chamber, heating element installs in the heating chamber, and overheat protection switch installs the control intracavity, and at least some stretches into of overheat protection switch's metal heat conductor the heating intracavity to receive the temperature of the temperature in the heating chamber.

12. Electric heating type tap, its characterized in that: comprises a mounting body, a heating component, a water outlet pipe and an overheat protection switch with power-off restart according to any one of claims 6 to 11;

the installation main part includes heating chamber and control chamber, heating element installs in the heating chamber, and overheat protection switch installs the control intracavity, and at least some stretches into of overheat protection switch's metal heat conductor the heating intracavity to receive the temperature of the temperature in the heating chamber.

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