CN111089427A - Pressure difference water shutoff power-off device and instant heating type heater thereof - Google Patents
Pressure difference water shutoff power-off device and instant heating type heater thereof Download PDFInfo
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- CN111089427A CN111089427A CN201911376688.2A CN201911376688A CN111089427A CN 111089427 A CN111089427 A CN 111089427A CN 201911376688 A CN201911376688 A CN 201911376688A CN 111089427 A CN111089427 A CN 111089427A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
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Abstract
The invention discloses a pressure difference water plugging and power off device and an instant heating type heater thereof, belonging to the field of household appliances. Correspondingly, the instant heating type heater disclosed by the invention comprises a shell, wherein a heating cavity for arranging the heating assembly is formed in the shell, the power input end of the wane assembly is clamped in the inner cavity of the shell through a rubber piece, and the inner cavity of the shell is divided into a pressure cavity and a pressure stabilizing cavity. The pressure difference water plugging and power off device and the instant heating type heater thereof disclosed by the invention have the advantages that the pressure difference water plugging and power off device can automatically power off after water flow at the water outlet end of the heater is plugged, continuous heating is prevented, and the safety and the energy saving are realized.
Description
Technical Field
The invention relates to the field of household appliances, in particular to a pressure difference water shutoff power-off device and an instant heating type heater thereof.
Background
The heater is the core part of products such as water heater, electric heating tap, and whether its structural design is reasonable has important influence on the performance such as security, high efficiency of products such as water heater, electric heating tap. In order to make products such as water heaters, electric heating taps and the like safer and more reliable in the use process, safety protection design needs to be carried out on the heaters.
After products such as the existing water heater, electric heating faucet are used for a long time, the water outlet end of the existing water heater, electric heating faucet and the like is easily blocked by water scales or other foreign matters, or the water outlet end of the existing water heater is frozen and blocked due to low air temperature, at the moment, after the heater is connected with water flow, the water flow can be gradually accumulated in the cavity of the heater until the cavity is filled, the heater can continuously heat the static water flow in the cavity, the water flow temperature is too high, potential safety hazards are caused, and energy is wasted. Because the existing heater can not automatically stop heating after the water outlet end is blocked, potential safety hazards and energy waste are easily caused, a user needs to control the heater to stop heating in time to avoid safety risks, and the heater is inconvenient to use.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to solve the technical problem of providing a pressure difference water shutoff and power-off device which adopts a structure that a wane component, a micro switch component and a rubber part are matched, and when the pressure difference water shutoff and power-off device is used for heaters of products such as electric heating faucets and water heaters, the pressure difference water shutoff and power-off device can automatically cut off power after water flow at a water outlet end of the heaters is blocked, thereby preventing continuous heating and being safer and more energy-saving.
Accordingly, another technical problem to be solved by the present invention is to provide an instant heating type heater using a pressure-difference water shutoff power-off device, wherein the casing is provided with a pressure cavity and a pressure-stabilizing cavity, and is matched with the pressure-difference water shutoff power-off device, so that the instant heating type heater can reliably realize water shutoff power-off, and is safer and more energy-saving.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a pressure difference water shutoff power-off device, which comprises a rocker assembly, a micro switch assembly, a support frame and a rubber piece, wherein the rocker assembly is rotatably connected with the inner wall of the support frame, the micro switch assembly is fixedly connected with the support frame, the power input end of the rocker assembly penetrates through the support frame and is embedded in the rubber piece, the power output end of the rocker assembly is abutted against the contact end of the micro switch assembly, the rubber piece is provided with a pressed front side surface and a pressed back side surface, one side of the rubber piece far away from the contact end is the pressed front side surface, one side of the rubber piece close to the contact end is the pressed back side surface, when the pressure applied to the pressed front side surface is greater than the pressure applied to the pressed back side surface, the power output end of the rocker assembly moves towards the direction close to the contact end until the contact end is pressed to close a circuit, when the pressure applied to the pressed front side surface is not greater than the pressure applied to the pressed, the power output end of the rocker assembly moves in a direction away from the contact end until the contact end resets to open the circuit.
The present invention has the preferable technical scheme that the wane component comprises a movable wane and a rotating shaft, and the movable wane is rotatably connected with the inner wall of the supporting frame through the rotating shaft.
The invention has the preferable technical scheme that the movable wane is configured as a bevel wane, the bevel wane is provided with a first flanging end and a second flanging end which form included angles with each other, the first flanging end penetrates through the support frame and is embedded in the rubber part, the second flanging end is abutted against the contact end, and the bevel wane is rotatably connected with the inner wall of the support frame through a rotating shaft.
The invention provides an instant heating type heater adopting a pressure difference water shutoff and power-off device, which comprises a shell, wherein a heating cavity for arranging a heating assembly is arranged in the shell, a power input end of a rocker assembly is clamped in an inner cavity of the shell through a rubber piece and divides the inner cavity of the shell into a pressure cavity and a pressure stabilizing cavity, a pressed front side surface is contacted with the pressure cavity, a pressed back side surface is contacted with the pressure stabilizing cavity, the pressure cavity and the pressure stabilizing cavity are respectively communicated with the heating cavity, a microswitch assembly is electrically connected with the heating assembly, a support frame is fixed on the inner wall of the shell, when the water pressure in the pressure cavity is greater than the water pressure in the pressure stabilizing cavity, the rocker assembly rotates towards one side direction of the pressure stabilizing cavity to enable a contact end to be pressed to close a circuit to control the heating assembly to start heating, and when the water pressure in the pressure cavity is not greater than the water, and controlling the heating assembly to stop heating.
The invention has the preferable technical scheme that a water inlet is formed in the water inlet end of the pressure cavity, a water outlet is formed in the water outlet end of the pressure cavity, the aperture of the water inlet is larger than that of the water outlet, the water inlet end of the pressure cavity is communicated with a water inlet pipeline through the water inlet, and the water outlet end of the pressure cavity is communicated with the heating cavity through the water outlet.
The invention has the preferable technical scheme that the inner wall of the shell is respectively provided with a first positioning boss and a second positioning boss, and the first positioning boss and the second positioning boss are respectively clamped with the rubber part.
The invention has the preferable technical scheme that a rubber part is respectively provided with a first clamping groove and a second clamping groove, a first positioning boss is clamped in the first clamping groove, and a second positioning boss is clamped in the second clamping groove.
The invention has the preferable technical scheme that a pressure relief plug is arranged at the water outlet end of the shell, and one end of the pressure relief plug penetrates through the shell to be in contact with the heating cavity.
The invention has the preferable technical scheme that a valve switch is arranged on the shell, and the pressure cavity is communicated with the water outlet end of the valve switch through a water inlet pipeline.
The invention has the beneficial effects that:
when the water outlet end of the heater is blocked, the static pressure of water flow in the shell is the same, namely the water pressure in the pressure cavity is equal to the water pressure in the pressure stabilizing cavity, the pressure on the pressure front side is equal to the pressure on the pressure back side, the wane component rotates towards one side of the pressure cavity and keeps balance after being restored to the initial position, so that the power output end of the wane component moves towards the direction far away from the contact end until the contact end resets to disconnect a circuit, the heating component is powered off and stops heating work, automatic heating stop is realized, the potential safety hazard problem caused by overheating of water temperature in the cavity of the shell due to continuous heating after the water flow is blocked is prevented, the safety is higher, unnecessary energy loss is reduced, energy is saved, the heating device does not need to be manually closed, and the use is more convenient. Through the process, the instant heating type heater adopting the differential pressure water plugging and power failure device can reliably realize water plugging and power failure, and is safer and more energy-saving.
Drawings
FIG. 1 is a sectional view of a differential pressure water shutoff and power interruption device according to an embodiment of the present invention;
fig. 2 is a structural cross-sectional view of an instant heating type heater adopting a differential pressure water shutoff power-off device provided in the embodiment of the invention;
FIG. 3 is an enlarged structural view of the instant heating type heater adopting the differential pressure water shutoff and power cut-off device in the part A in FIG. 2;
fig. 4 is an enlarged view of the structure of the instantaneous heater using the pressure difference water shutoff power-off device in the part B of fig. 2.
In the figure:
1. a rocker assembly; 11. a movable rocker; 110. a bevel rocker; 111. a first hem end; 112. a second flanged end; 12. a rotating shaft; 2. a micro-switch assembly; 21. a contact end; 3. a support frame; 4. a rubber member; 41. a pressed front side; 42. a compressed back side; 43. a first card slot; 44. a second card slot; 5. a housing; 50. a heating cavity; 51. a pressure chamber; 511. a water inlet; 512. a water outlet; 52. a voltage stabilizing cavity; 53. a water inlet pipe; 54. a first positioning boss; 55. a second positioning boss; 56. a pressure relief plug; 6. a heating assembly; 7. and (6) opening and closing a valve.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
As shown in fig. 1, in the first embodiment, when the pressure difference water shutoff and power off device is used in a heater of an electric heating faucet, a water heater, or other products, the pressure difference water shutoff and power off device can automatically cut off power after water flow at a water outlet end of the heater is blocked, so that continuous heating is prevented, and safety and energy conservation are achieved. Further, the pressure difference water shutoff power-off device comprises a rocker assembly 1, a micro switch assembly 2, a support frame 3 and a rubber part 4, wherein the rocker assembly 1 is rotatably connected with the inner wall of the support frame 3, the micro switch assembly 2 is fixedly connected with the support frame 3, a power input end of the rocker assembly 1 penetrates through the support frame 3 and is embedded in the rubber part 4, a power output end of the rocker assembly 1 is abutted against a contact end 21 of the micro switch assembly 2, the rubber part 4 is provided with a pressed front side surface 41 and a pressed back side surface 42, one side of the rubber part 4 far away from the contact end 21 is the pressed front side surface 41, one side of the rubber part 4 close to the contact end 21 is the pressed back side surface 42, when the pressure applied to the pressed front side surface 41 is greater than the pressure applied to the pressed back side surface 42, the power output end of the rocker assembly 1 moves towards the direction close to the contact end 21 until the contact end 21 is pressed to close a circuit, when the pressure applied to the pressed front side surface 41 is not greater than the pressure, the power output end of paddle assembly 1 moves away from contact end 21 until contact end 21 resets to open the circuit. When the pressure difference water shutoff and power-off device is arranged in a cavity of a heater of products such as an electric heating faucet, a water heater and the like, the pressure front side surface 41 is close to the water inlet end of the heater, the pressure back side surface 42 is close to the water outlet end of the heater, and the micro switch assembly 2 is electrically connected with a heating assembly of the heater. When the heater is not connected with water flow, the specific working state of the pressure difference water blocking and power-off device is as follows: when the heater is not in water supply, the pressure front side surface 41 and the pressure back side surface 42 are not under the pressure of water flow, the wane component 1 keeps the initial state, the contact end 21 keeps disconnected, and the heating component of the heater is not in power supply operation. After the heater is connected with water flow, the specific working state of the differential pressure water plugging and power-off device is as follows: when the water outlet end of the heater is not blocked and the water flow is in a normal water outlet flowing state, the water pressure is gradually reduced along the water flow flowing direction under the condition of no other external force, at the moment, the pressure applied to the pressure-applied front side surface 41 is greater than the pressure applied to the pressure-applied back side surface 42, the rocker assembly 1 is pressed to rotate, the power output end of the rocker assembly 1 moves towards the direction close to the contact end 21 until the contact end 21 is pressed to close a circuit, and then the heating assembly of the heater is normally electrified and performs heating work; and a second state: when the water outlet end of the heater is blocked by foreign matters or water flow is blocked and stops flowing due to freezing of the water flow, the static pressure of the water flow in the cavity of the heater is the same, at the moment, the pressure on the pressure front side 41 is equal to the pressure on the pressure back side 42, the wane assembly 1 rotates under pressure and keeps balance after being restored to the initial position, and then the power output end of the wane assembly 1 moves towards the direction far away from the contact end 21 until the contact end 21 resets and breaks a circuit, so that the heating assembly of the heater is powered off and stops heating; and a third state: when the obstruction at the water outlet end of the heater is cleaned or the water is unfrozen and melted into ice and the water flow can normally flow, the movement process of the state I is repeated, and the heating assembly of the heater continuously heats the water flow in the cavity. Through the process, when the water outlet end of the heater is blocked, the heating can be automatically stopped, the problem of potential safety hazard caused by overheating of the cavity water temperature due to continuous heating after the water outlet end is blocked is prevented, the water outlet end is safer, meanwhile, unnecessary energy loss is reduced, and the water outlet end is more energy-saving. When the water outlet end is blocked, the heating can be automatically stopped, the heating device does not need to be manually closed, and the use is more convenient.
In order to allow a reliable rotation of the rocker assembly 1. Further, the rocker assembly 1 comprises a movable rocker 11 and a rotating shaft 12, wherein the movable rocker 11 is rotatably connected with the inner wall of the supporting frame 3 through the rotating shaft 12. Through setting up pivot 12, make activity wane 11 realize reliably rotating through pivot 12, and play limiting displacement.
In order to control the opening and closing state of the contact end 21 when the movable rocker 11 is pressed to rotate. Further, the movable rocker 11 is configured as a bevel rocker 110, the bevel rocker 110 has a first bevel end 111 and a second bevel end 112 that form an included angle with each other, the first bevel end 111 passes through the supporting frame 3 and is embedded in the rubber member 4, the second bevel end 112 abuts against the contact end 21, and the bevel rocker 110 is rotatably connected with the inner wall of the supporting frame 3 through the rotating shaft 12. Through configuring activity wane 11 into dog-ear wane 110, when rubber spare 4 pressurized, can drive first hem end 111 swing, the big or small degree that exerts pressure to contact end 21 through first hem end 111 controls the state that opens and shuts of contact end 21. Through the above process, the movable rocker 11 can control the opening and closing state of the contact end 21 when being pressed to rotate.
Example two
As shown in fig. 2 to 4, in order to more clearly illustrate the working principle and the working process of the pressure difference water shutoff and power cut-off device in the heater, in the second embodiment, a instantaneous heater using the pressure difference water shutoff and power cut-off device is provided, which includes a housing 5, and a heating cavity 50 for arranging a heating assembly 6 is formed in the housing 5. The heating assembly 6 can heat the water flow in the heating cavity 50 after being electrified, and the pressure difference water blocking and power off device is used for realizing water blocking and power off and preventing the heating assembly 6 from continuously heating to cause potential safety hazards after the water flow is blocked. The instant heating type heater adopting the differential pressure water blocking and power failure device can reliably realize water blocking and power failure, and is safer and more energy-saving. Furthermore, the power input end of the wane component 1 is clamped in the inner cavity of the shell 5 through the rubber part 4, the inner cavity of the shell 5 is divided into a pressure cavity 51 and a pressure stabilizing cavity 52, the pressure front side 41 is contacted with the pressure cavity 51, the pressure back side 42 is contacted with the pressure stabilizing cavity 52, the pressure cavity 51 and the pressure stabilizing cavity 52 are respectively communicated with the heating cavity 50, the micro switch assembly 2 is electrically connected with the heating assembly 6, the supporting frame 3 is fixed on the inner wall of the shell 5, when the water pressure in the pressure cavity 51 is higher than the water pressure in the pressure stabilizing cavity 52, the rocker assembly 1 rotates towards one side of the pressure stabilizing cavity 52 to press the contact end 21 to close the circuit, the heating assembly 6 is controlled to start heating, when the water pressure in the pressure chamber 51 is not greater than the water pressure in the pressure stabilizing chamber 52, the rocker assembly 1 rotates towards one side direction of the pressure chamber 51 to reset the contact end 21 and break the circuit, and the heating assembly 6 is controlled to stop heating. When the heater is not connected with water flow, the specific working state is as follows: when no water flows through the shell 5, no water flows pass through the pressure cavity 51 and the pressure stabilizing cavity 52, the pressure of the water flows does not exist on the pressure front side surface 41 and the pressure back side surface 42, the rocker assembly 1 keeps an initial state, the contact end 21 keeps disconnected, and the heating assembly 6 is not electrified to work. After the heater is switched on, the specific working state is as follows: when the water outlet end of the shell 5 is not blocked and water flow is in a normal water outlet flowing state, the water pressure is gradually reduced along the water flow flowing direction under the condition of no other external force, at the moment, the water pressure in the pressure cavity 51 is greater than the water pressure in the pressure stabilizing cavity 52, so that the pressure on the pressure-bearing front side 41 is greater than the pressure on the pressure-bearing back side 42, the rocker assembly 1 rotates towards one side direction of the pressure stabilizing cavity 52 after being pressed, the power output end of the rocker assembly 1 moves towards the direction close to the contact end 21 until the contact end 21 is pressed to close a circuit, and the heating assembly 6 is normally electrified and performs heating work; and a second state: when the water outlet end of the shell 5 is blocked by foreign matters or water flow is blocked and stops flowing due to icing of the water flow, the static pressure of the water flow in the shell 5 is the same, namely the water pressure in the pressure cavity 51 is equal to the water pressure in the pressure stabilizing cavity 52, at the moment, the pressure on the pressure front side 41 is equal to the pressure on the pressure back side 42, the rocker assembly 1 rotates towards one side direction of the pressure cavity 51 and keeps balance after being recovered to the initial position, and then the power output end of the rocker assembly 1 moves towards the direction far away from the contact end 21 until the contact end 21 resets and breaks the circuit, so that the heating assembly 6 is powered off and stops heating; and a third state: when the obstruction at the water outlet end of the shell 5 is cleared or the water is defrosted and the water flow can flow normally, the movement process of the first state is repeated, and the heating assembly 6 continues to heat the water flow in the shell 5. Through the process, when the water outlet end of the shell 5 is blocked, the heating can be automatically stopped, the problem of potential safety hazard caused by overheating of water temperature in the cavity of the shell 5 due to continuous heating after the water outlet end of the shell 5 is blocked is prevented, the safety is improved, meanwhile, unnecessary energy loss is reduced, and the energy-saving effect is improved. When the water outlet end of the shell 5 is blocked, the heating can be automatically stopped, the heating device does not need to be manually turned off, and the use is more convenient. Wherein, the power input end of wane subassembly 1 passes through 4 joints of rubber spare at the inner chamber of casing 5, and it is more firm that rubber spare 4 can guarantee that wane subassembly 1 and casing 5 cooperate, and can cushion the pressure and the impact force of rivers through rubber spare 4, reduces the damage that the power input end of wane subassembly 1 received because of direct contact rivers and long-term pressurized. Through the process, the instant heating type heater adopting the differential pressure water plugging and power failure device can reliably realize water plugging and power failure, and is safer and more energy-saving.
In order to ensure that the pressure in the pressure chamber 51 is higher than the pressure in the pressure-stabilizing chamber 52 when the water flow is in a normal flow condition. The water inlet end of the pressure cavity 51 is provided with a water inlet 511, the water outlet end of the pressure cavity 51 is provided with a water outlet 512, the aperture of the water inlet 511 is larger than that of the water outlet 512, the water inlet end of the pressure cavity 51 is communicated with a water inlet pipe 53 through the water inlet 511, and the water outlet end of the pressure cavity 51 is communicated with the heating cavity 50 through the water outlet 512. After passing through the water inlet pipe 53, the water flows into the pressure chamber 51 through the water inlet 511, and is discharged from the pressure chamber 51 into the heating chamber 50 through the water outlet 512, so that the pressure chamber 51 can be filled with water and drained of water. And the aperture of the water inlet 511 is larger than that of the water outlet 512, so that water can be accumulated in the pressure cavity 51 in a short time when flowing, and the pressure in the pressure cavity 51 is higher than that in the pressure stabilizing cavity 52. Through the above process, when the water flow is in a normal flowing state, the pressure in the pressure cavity 51 is ensured to be higher than the pressure in the pressure stabilizing cavity 52.
The rubber member 4 is positioned and assembled conveniently and more firmly. Further, the inner wall of the housing 5 is provided with a first positioning boss 54 and a second positioning boss 55, and the first positioning boss 54 and the second positioning boss 55 are respectively connected with the rubber part 4 in a clamping manner. The casing 5 is convenient for the rubber part 4 and the casing 5 to be positioned and assembled through the arrangement of the first positioning boss 54 and the second positioning boss 55, and the assembly is firmer.
In order to make the positioning boss of the housing 5 fit with the rubber member 4 more firmly. Further, the rubber member 4 is provided with a first engaging groove 43 and a second engaging groove 44, the first positioning protrusion 54 is engaged with the first engaging groove 43, and the second positioning protrusion 55 is engaged with the second engaging groove 44. The rubber part 4 is conveniently positioned and assembled with the positioning boss structure of the shell 5 through the clamping groove structures of the first clamping groove 43 and the second clamping groove 44, and the matching is ensured to be firmer.
In order to prevent the pressure in the housing 5 from becoming too high. Furthermore, a pressure relief plug 56 is disposed at the water outlet end of the housing 5, and one end of the pressure relief plug 56 penetrates through the housing 5 to contact the heating chamber 50. When the user opens the pressure relief plug 56, the water flows out from the opening of the pressure relief plug 56 to release the pressure, and when a part of the water flows in the heating cavity 50 is discharged, the excessive pressure in the housing 5 can be released to prevent the excessive pressure in the housing 5, and when the pressure is in a reasonable value, the user can close the pressure relief plug 56 to stop the outward discharge.
The water inlet flow of the heater can be conveniently adjusted. Furthermore, a valve switch 7 is disposed on the housing 5, and the pressure chamber 51 is communicated with a water outlet end of the valve switch 7 through a water inlet pipe 53. The user makes water flow enter the pressure cavity 51 from the water outlet end of the valve switch 7 through the water inlet pipeline 53 by rotating the valve switch 7, the water inlet flow in the pressure cavity 51 can be adjusted, and then the water inlet flow of the heater is adjusted, and the operation is simple and convenient.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (9)
1. The utility model provides a pressure differential water shutoff outage device which characterized in that:
comprises a rocker component (1), a micro switch component (2), a support frame (3) and a rubber piece (4);
the rocker assembly (1) is rotatably connected with the inner wall of the support frame (3), and the micro switch assembly (2) is fixedly connected with the support frame (3);
the power input end of the rocker assembly (1) penetrates through the support frame (3) and is embedded in the rubber part (4), and the power output end of the rocker assembly (1) is abutted to the contact end (21) of the micro switch assembly (2);
the rubber member (4) has a pressure front side surface (41) and a pressure back side surface (42);
one side of the rubber piece (4) far away from the contact end (21) is a pressed front side surface (41), and one side of the rubber piece (4) close to the contact end (21) is a pressed back side surface (42);
when the pressure on the pressure front side (41) is greater than the pressure on the pressure back side (42), the power output end of the rocker assembly (1) moves towards the direction close to the contact end (21) until the contact end (21) is pressed to close a circuit;
when the pressure on the pressure front side (41) is not more than the pressure on the pressure back side (42), the power output end of the rocker assembly (1) moves towards the direction far away from the contact end (21) until the contact end (21) resets and breaks the circuit.
2. The pressure difference water shutoff power failure device according to claim 1, characterized in that:
the rocker assembly (1) comprises a movable rocker (11) and a rotating shaft (12);
the movable wane (11) is rotatably connected with the inner wall of the support frame (3) through the rotating shaft (12).
3. The differential pressure water shutoff power failure device according to claim 2, characterized in that:
the movable rocker (11) is configured as a dog-ear rocker (110);
the angle bending rocker (110) is provided with a first folding end (111) and a second folding end (112) which form an included angle with each other;
the first flanging end (111) penetrates through the support frame (3) and is embedded in the rubber part (4), and the second flanging end (112) is abutted against the contact end (21);
the bevel wane (110) is rotatably connected with the inner wall of the support frame (3) through the rotating shaft (12).
4. A tankless heater employing the pressure difference water shutoff and power cut-off device of any one of claims 1 to 3, comprising a housing (5), wherein a heating chamber (50) for arranging a heating assembly (6) is formed in the housing (5), characterized in that:
the power input end of the warping plate assembly (1) is clamped in the inner cavity of the shell (5) through the rubber piece (4), and the inner cavity of the shell (5) is divided into a pressure cavity (51) and a pressure stabilizing cavity (52);
the pressure front side surface (41) is in contact with the pressure cavity (51), and the pressure back side surface (42) is in contact with the pressure stabilizing cavity (52);
the pressure cavity (51) and the pressure stabilizing cavity (52) are respectively communicated with the heating cavity (50);
the micro switch assembly (2) is electrically connected with the heating assembly (6), and the support frame (3) is fixed on the inner wall of the shell (5);
when the water pressure in the pressure cavity (51) is higher than the water pressure in the pressure stabilizing cavity (52), the rocker assembly (1) rotates towards one side direction of the pressure stabilizing cavity (52) to press the contact end (21) to close a circuit, and the heating assembly (6) is controlled to start heating;
when the water pressure in the pressure cavity (51) is not more than the water pressure in the pressure stabilizing cavity (52), the rocker assembly (1) rotates towards one side direction of the pressure cavity (51) to reset the contact end (21) and break a circuit, and the heating assembly (6) is controlled to stop heating.
5. The tankless heater of claim 4, further comprising:
a water inlet (511) is formed in the water inlet end of the pressure cavity (51), and a water outlet (512) is formed in the water outlet end of the pressure cavity (51);
the aperture of the water inlet (511) is larger than that of the water outlet (512);
the water inlet end of the pressure cavity (51) is communicated with a water inlet pipeline (53) through the water inlet (511);
the water outlet end of the pressure cavity (51) is communicated with the heating cavity (50) through the water outlet (512).
6. The tankless heater of claim 4, further comprising:
the inner wall of the shell (5) is respectively provided with a first positioning boss (54) and a second positioning boss (55);
the first positioning boss (54) and the second positioning boss (55) are respectively clamped with the rubber part (4).
7. The tankless heater of claim 6, further comprising:
a first clamping groove (43) and a second clamping groove (44) are respectively formed in the rubber piece (4);
the first positioning boss (54) is clamped in the first clamping groove (43);
the second positioning boss (55) is clamped in the second clamping groove (44).
8. The tankless heater of claim 4, further comprising:
a pressure relief plug (56) is arranged at the water outlet end of the shell (5);
one end of the pressure relief plug (56) penetrates through the shell (5) to be in contact with the heating cavity (50).
9. The tankless heater of claim 5, further comprising:
a valve switch (7) is arranged on the shell (5);
the pressure cavity (51) is communicated with the water outlet end of the valve switch (7) through the water inlet pipeline (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376688.2A CN111089427A (en) | 2019-12-27 | 2019-12-27 | Pressure difference water shutoff power-off device and instant heating type heater thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376688.2A CN111089427A (en) | 2019-12-27 | 2019-12-27 | Pressure difference water shutoff power-off device and instant heating type heater thereof |
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| CN111089427A true CN111089427A (en) | 2020-05-01 |
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|---|---|---|---|
| CN201911376688.2A Pending CN111089427A (en) | 2019-12-27 | 2019-12-27 | Pressure difference water shutoff power-off device and instant heating type heater thereof |
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| CN (1) | CN111089427A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853343A (en) * | 2020-07-28 | 2020-10-30 | 厦门欧准卫浴有限公司 | Instant heating system |
| CN113007894A (en) * | 2021-03-09 | 2021-06-22 | 罗留洋 | Anti-cooling electric water heater |
-
2019
- 2019-12-27 CN CN201911376688.2A patent/CN111089427A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853343A (en) * | 2020-07-28 | 2020-10-30 | 厦门欧准卫浴有限公司 | Instant heating system |
| CN111853343B (en) * | 2020-07-28 | 2022-08-12 | 厦门欧准卫浴有限公司 | Instant heating system |
| CN113007894A (en) * | 2021-03-09 | 2021-06-22 | 罗留洋 | Anti-cooling electric water heater |
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Application publication date: 20200501 |
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