CN110068136B

CN110068136B - Adjustable efficient water heater based on electromagnetic induction heating principle

Info

Publication number: CN110068136B
Application number: CN201910280503.1A
Authority: CN
Inventors: 蒙丽桃
Original assignee: Yangzhou Xingmin Electric Appliance Co ltd
Current assignee: Yangzhou Xingmin Electric Appliance Co ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2021-01-15
Anticipated expiration: 2039-04-09
Also published as: CN110068136A

Abstract

The invention relates to an adjustable high-efficiency water heater based on an electromagnetic induction heating principle, which comprises a power supply, a platform, an electromagnetic mechanism, a water storage mechanism and a plurality of support legs, wherein the water storage mechanism comprises an outer barrel, an inner barrel, a heat preservation pipe, a heat preservation cover and a plurality of mounting components, the electromagnetic mechanism comprises a lifting component, a lifting plate, a coil, a lead and two short-circuit components, the short-circuit components comprise lifting rods, lifting blocks, a first spring and a current conducting plate, the adjustable high-efficiency water heater based on the electromagnetic induction heating principle can facilitate the coil to heat the inner side and the outer side simultaneously through the water storage mechanism, the change of a magnetic field is fully and reasonably utilized, the heating efficiency is improved, heat insulation and heat preservation treatment is carried out, the heat dissipation is avoided, the heating efficiency is further improved, and moreover, the power-on area of the coil, the electric energy waste caused by the energization of unnecessary parts of the coil is avoided, the energy-saving effect is realized, and the practicability of the equipment is improved.

Description

Adjustable efficient water heater based on electromagnetic induction heating principle

Technical Field

The invention relates to the field of electromagnetic induction heating equipment, in particular to an adjustable efficient water heater based on an electromagnetic induction heating principle.

Background

The electromagnetic heating is also called electromagnetic induction heating, namely an electromagnetic heating technology, the electromagnetic heating is far away from the heating technology that an alternating magnetic field is generated through an electronic circuit board component, when a ferrous container is placed on the iron-containing container, the surface of the container cuts alternating magnetic lines of force to generate alternating current (namely eddy current) on a metal part at the bottom of the container, the eddy current enables carriers at the bottom of the container to move randomly at high speed, and the carriers collide and rub with atoms to generate heat energy, so that the effect of heating objects is achieved. The electromagnetic heating application field is wider, and people generally utilize various electromagnetic water heaters to heat domestic water.

However, in the existing electromagnetic water heater, the structure of the electromagnetic coil is fixed, the magnetic field range which leads to the change is fixed and unchanged, when the electromagnetic water heater is used, the action range of the magnetic field can not be adjusted according to the water quantity, the electromagnetic water heater generally utilizes the magnetic field inside the electromagnetic coil to heat the water tank inside the coil, the magnetic field change outside the electromagnetic water heater can not be fully utilized to heat, the heating efficiency is reduced, furthermore, in the heating process, the water tank is heated by electromagnetic induction, the external temperature is easy to rise, the heat is easy to diffuse to the outside, the heating efficiency is further reduced, and the practicability of the existing electromagnetic water heater is reduced. .

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, an adjustable efficient water heater based on an electromagnetic induction heating principle is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: an adjustable efficient water heater based on an electromagnetic induction heating principle comprises an operator, a power supply, a platform, an electromagnetic mechanism, a water storage mechanism and a plurality of support legs, wherein the water storage mechanism and the operator are arranged above the platform;

the water storage mechanism comprises an outer barrel, an inner barrel, a heat preservation pipe, a heat preservation cover and a plurality of mounting assemblies, wherein the outer barrel is positioned above the platform, a notch is formed below the outer barrel, the inner barrel is arranged in the notch, a plurality of connecting pipes are arranged on the periphery of the bottom of the inner barrel, the inner barrel is communicated with the bottom of the outer barrel through the connecting pipes, the outer barrel is positioned on the inner side of the heat preservation pipe, the heat preservation pipe is fixed above the platform, the heat preservation cover is arranged at the top end of the heat preservation pipe in a covering mode, the mounting assemblies are evenly distributed below the heat preservation cover in the circumferential direction, the heat preservation cover is connected with the heat preservation pipe through the mounting assemblies, first heat insulation cotton is arranged below the heat preservation cover, and;

the electromagnetic mechanism comprises a lifting assembly, a lifting plate, a coil, a conducting wire and two short circuit assemblies, wherein the lifting assembly and the lifting plate are both located below the platform, the lifting assembly is in transmission connection with the lifting plate, two ends of the coil are respectively connected with two ends of a power supply, the coil is sleeved on the inner barrel, the two short circuit assemblies are respectively located on two sides of the coil, each short circuit assembly comprises a lifting rod, a lifting block, a first spring and a conducting plate, the bottom end of the lifting rod is fixed above the lifting plate, the top end of the lifting rod is fixedly connected with the lifting block, the conducting plate is arranged on one side, close to the coil, of the lifting block through the first spring, the first spring is in a compression state, and two ends of the conducting wire are respectively connected with the conducting plates in the two short circuit assemblies.

As preferred, for the dismouting of the lid that keeps warm in the ease, the installation component is including installation pipe, solid fixed ring, drag hook and slide bar, the vertical below of fixing at the lid that keeps warm of installation pipe downwards, gu fixed ring fixes on the insulating tube, gu fixed ring is connected with the drag hook, the bottom at the slide bar is fixed to the drag hook, the top setting of slide bar is in the installation intraductal, the intraductal second spring and the arm-tie that are equipped with of installation, the arm-tie passes through the second spring and is connected with the intraductal top of installation, the second spring is in tensile state.

Preferably, in order to limit the movement of the pulling plate, a limiting ring is arranged at the pipe orifice of the mounting pipe and sleeved on the sliding rod.

Preferably, in order to detect the amount of water to be heated, a water level sensor is disposed at the top of the inside of the outer tub, and the water level sensor is electrically connected to the PLC.

Preferably, in order to facilitate the specification of the positions of the outer barrel and the inner barrel, a plurality of jacks are arranged at the bottom of the outer barrel, a plurality of insertion rods are arranged above the platform, the number of the insertion rods is equal to that of the jacks, the insertion rods correspond to the jacks one to one, the top ends of the insertion rods are arranged in the jacks, and the bottom ends of the insertion rods are fixed above the platform.

Preferably, in order to realize the simultaneous movement of lifter and current conducting plate, the short circuit subassembly still includes four spacing units, and four spacing units are located the four corners department that is close to one side of lifter of current conducting plate respectively, spacing unit includes gag lever post and stopper, the stopper passes through gag lever post and current conducting plate fixed connection, the lifter cover is established on the gag lever post.

Preferably, in order to add water to the outer barrel conveniently, a notch is formed in the upper portion of the outer barrel, a water filling port is formed in the bottom of the notch, a sealing plug is arranged on the inner side of the water filling port, the periphery of the sealing plug is connected with the inner wall of the water filling port in a sealing mode, and a handle is arranged above the water filling port.

Preferably, in order to facilitate the sealing plug to be plugged into the water filling opening, the bottom end of the sealing plug is in a truncated cone shape, the minimum outer diameter of the sealing plug is smaller than the inner diameter of the water filling opening, and the outer diameter of the top of the sealing plug is larger than the inner diameter of the water filling opening.

Preferably, in order to realize the lifting movement of lifter plate, lifting unit includes bottom plate and two elevating unit, the bottom plate is fixed between each stabilizer blade, and two elevating unit are located the both sides of the top of bottom plate respectively, elevating unit includes motor, lead screw and bearing, the motor is fixed in the below of platform, the motor is connected with the PLC electricity, the bearing is fixed in the top of bottom plate, the motor is connected with the one end transmission of lead screw, the other end setting of lead screw is in the bearing, the lifter plate be equipped with the screw thread that matches with the lead screw with the junction of lead screw.

Preferably, in order to facilitate the movement of the device, the bottom end of the supporting foot is provided with a universal wheel.

The adjustable efficient water heater based on the electromagnetic induction heating principle has the advantages that the coil can be convenient to heat the inner side and the outer side simultaneously through the water storage mechanism, the change of a magnetic field is fully and reasonably utilized, the heating efficiency is improved, heat insulation and heat preservation treatment are carried out, heat emission is avoided, the heating efficiency is further improved, in addition, the electrifying area of the coil can be adjusted according to the water level through the electromagnetic mechanism, the magnetic field range is further adjusted, electric energy waste caused by electrifying of unnecessary parts of the coil is avoided, the energy-saving effect is realized, and the practicability of the device is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of an adjustable high efficiency water heater based on the electromagnetic induction heating principle according to the present invention;

FIG. 2 is a cross-sectional view of the insulated pipe of the adjustable high efficiency water heater of the present invention based on the electromagnetic induction heating principle;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

in the figure: 1. the device comprises an operator, 2, a power supply, 3, a platform, 4, a support leg, 5, an outer barrel, 6, an inner barrel, 7, a heat preservation pipe, 8, a heat preservation cover, 9, a connecting pipe, 10, first heat insulation cotton, 11, second heat insulation cotton, 12, a lifting plate, 13, a coil, 14, a lead wire, 15, a lifting rod, 16, a lifting block, 17, a first spring, 18, a conductive plate, 19, a mounting pipe, 20, a fixing ring, 21, a draw hook, 22, a sliding rod, 23, a second spring, 24, a pull plate, 25, a limiting ring, 26, a water level sensor, 27, an inserting rod, 28, a limiting rod, 29, a limiting block, 30, a sealing plug, 31, a handle, 32, a bottom plate, 33, a motor, 34, a lead screw, 35, a bearing and 36, and a universal wheel.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, an adjustable high-efficiency water heater based on an electromagnetic induction heating principle comprises an operator 1, a power supply 2, a platform 3, an electromagnetic mechanism, a water storage mechanism and a plurality of support legs 4, wherein the water storage mechanism and the operator 1 are both arranged above the platform 3, a PLC is arranged in the operator 1, the support legs 4 and the power supply 2 are both fixed below the platform 3, and the power supply 2 is electrically connected with the PLC;

in this water heater, by stabilizer blade 4 fixed stay platform 3, platform 3's top, the operation of 1 operating means of user's accessible operator, utilize to deposit the clear water back of water mechanism, utilize the electromagnetic induction heating principle to heat rivers by electromagnetic mechanism to realize the function of heating.

As shown in fig. 2, the water storage mechanism comprises an outer barrel 5, an inner barrel 6, a heat preservation pipe 7, a heat preservation cover 8 and a plurality of mounting components, wherein the outer barrel 5 is positioned above the platform 3, a notch is arranged below the outer barrel 5, the inner barrel 6 is arranged in the notch, a plurality of connecting pipes 9 are arranged on the periphery of the bottom of the inner barrel 6, the inner barrel 6 is communicated with the bottom of the outer barrel 5 through the connecting pipes 9, the outer barrel 5 is positioned at the inner side of the heat preservation pipe 7, the heat preservation pipe 7 is fixed above the platform 3, the heat preservation cover 8 is covered on the top end of the heat preservation pipe 7, the mounting components are uniformly distributed below the heat preservation cover 8 in the circumferential direction, the heat preservation cover 8 is connected with the heat preservation pipe 7 through the mounting components, first heat insulation cotton 10 is arranged below the heat preservation cover 8, and second heat insulation;

in the water storage mechanism, clear water can be stored in the inner barrel 6 and the outer barrel 5, the bottom of the inner barrel 6 is communicated with the outer barrel 5 through a connecting pipe 9, so that the water levels in the inner barrel 6 and the outer barrel 5 are kept consistent, meanwhile, a coil 13 in the electromagnetic mechanism can extend into a position between the inner barrel 6 and the outer barrel 5, after the coil 13 is controlled by the power supply 2 to be electrified, a magnetic field generated inside the coil 13 acts on the inner barrel 6, a magnetic field generated outside the coil 13 acts on the outer barrel 5 outside the coil 13, so that the coil 13 heats water resources in the inner barrel 6 and the outer barrel 5 simultaneously, the magnetic field generated when the coil 13 flows through a circuit is fully utilized, the heating efficiency is improved, in addition, in the heating process, the outer barrel 5 is positioned inside the heat preservation pipe 7, the heat preservation cover 8 is covered at the top end of the heat preservation pipe 7 through a mounting assembly, so that the heating process is in a closed environment consisting, and block heat transfer to heat preservation lid 8 and insulating tube 7 in through first thermal-insulated cotton 10 and the thermal-insulated cotton 11 of second, avoid too much heat to give off, be convenient for concentrate carry out rapid heating to interior bucket 6 and outer bucket 5 to heating efficiency has been improved, and then improved the practicality of this equipment.

As shown in fig. 1 and 3, the electromagnetic mechanism includes a lifting assembly, a lifting plate 12, a coil 13, a wire 14 and two short-circuiting assemblies, the lifting component and the lifting plate 12 are both positioned below the platform 3, the lifting component is in transmission connection with the lifting plate 12, two ends of the coil 13 are respectively connected with two ends of the power supply 2, the coil 13 is sleeved on the inner barrel 6, two short circuit components are respectively positioned at two sides of the coil 13, the short circuit assembly includes a lift pin 15, a lift block 16, a first spring 17 and a conductive plate 18, the bottom end of the lifting rod 15 is fixed above the lifting plate 12, the top end of the lifting rod 15 is fixedly connected with the lifting block 16, the conductive plate 18 is disposed on the side of the elevator block 16 close to the coil 13 by the first spring 17, the first spring 17 is in a compressed state, and both ends of the wire 14 are connected to the conductive plates 18 of the two short circuit assemblies, respectively.

According to the water level in the inner barrel 6 and the outer barrel 5, the PLC controls the lifting component to start, drives the lifting plate 12 to move up and down, adjusts the height position of the lifting plate 12, further drives the lifting block 16 to move through the lifting rod 15, adjusts the height of the lifting block 16, one side of the lifting block 16 close to the inner barrel 6 pushes the conductive plate 18 through the first spring 17 in a compressed state, so that the conductive plate 18 is abutted against the outer side of the coil 13, the height position of the lifting block 16 changes, further drives the height position change of the conductive plate 18, so that the conductive plate 18 and the water level in the inner barrel 6 keep the same height, therefore, when the power supply 2 supplies power to the coil 13, the upper part of the coil 13, which is positioned at the conductive plate 18, is not electrified due to the way of the lead 14 and the two conductive plates 18, so that the circuit passes through the lower part of the coil 13, which is, the action range of the magnetic field is adjusted, the waste of electric energy caused by electrifying redundant coil 13 parts is avoided, and the energy-saving effect is realized.

As shown in fig. 4, the installation component includes installation pipe 19, solid fixed ring 20, drag hook 21 and slide bar 22, installation pipe 19 is vertical to be fixed downwards in the below of heat preservation lid 8, solid fixed ring 20 is fixed on insulating tube 7, solid fixed ring 20 is connected with drag hook 21, the bottom at slide bar 22 is fixed to drag hook 21, the top setting of slide bar 22 is in installation pipe 19, be equipped with second spring 23 and arm-tie 24 in the installation pipe 19, arm-tie 24 is connected through the top in second spring 23 and the installation pipe 19, second spring 23 is in tensile state.

When carrying out the installation of heat preservation lid 8, cover 8 tops at insulating tube 7 with heat preservation, and the pull rod in the back pulling installation component for 24 pulling second springs 23 of arm-tie, with the drag hook 21 after pulling to solid fixed ring 20 below, loosen drag hook 21, second springs 23 is for resumeing deformation, pulling arm-tie 24 rebound, makes slide bar 22 pulling drag hook 21 rebound, catches on solid fixed ring 20, thereby has accomplished the fixed mounting who covers 8 that keeps warm. And when dismantling, with the drag hook 21 pulling downwards for drag hook 21 breaks away from solid fixed ring 20, after breaking away from solid fixed ring 20 with the drag hook 21 among a plurality of installation component simultaneously, can upwards take away heat preservation lid 8, and then accomplished the dismantlement of heat preservation lid 8.

Preferably, in order to limit the movement of the pulling plate 24, a limiting ring 25 is arranged at the pipe orifice of the mounting pipe 19, and the limiting ring 25 is sleeved on the sliding rod 22. The use of the stop collar 25 allows the direction of movement of the slide rod 22 to be fixed and prevents the pull plate 24 from disengaging the mounting tube 19.

Preferably, in order to detect the amount of water to be heated, a water level sensor 26 is disposed at the top of the inside of the outer tub 5, and the water level sensor 26 is electrically connected to the PLC. The water level in the outer tub 5 is detected by the water level sensor 26, and the water level data is transmitted to the PLC which controls the lifting assembly to be started up according to the water level, and adjusts the height position of the lifting block 16.

Preferably, in order to facilitate the specification of the positions of the outer barrel 5 and the inner barrel 6, a plurality of sockets are arranged at the bottom of the outer barrel 5, a plurality of insertion rods 27 are arranged above the platform 3, the number of the insertion rods 27 is equal to that of the sockets, the insertion rods 27 correspond to the sockets one to one, the top ends of the insertion rods 27 are arranged in the sockets, and the bottom ends of the insertion rods 27 are fixed above the platform 3. When the outer barrel 5 is placed on the inner part of the insulating tube 7, the socket on the outer barrel 5 is aligned with the inserted rod 27 on the platform 3, so that the socket is sleeved on the inserted rod 27, and the positions of the outer barrel 5 and the inner barrel 6 can be regulated.

Preferably, in order to realize the synchronous movement of the lifting block 16 and the conductive plate 18, the short circuit assembly further comprises four limiting units, the four limiting units are respectively located at four corners of one side of the conductive plate 18 close to the lifting block 16, each limiting unit comprises a limiting rod 28 and a limiting block 29, the limiting block 29 is fixedly connected with the conductive plate 18 through the limiting rod 28, and the lifting block 16 is sleeved on the limiting rod 28. When the elevating block 16 moves up and down, the stopper rod 28 acts on the conductive plate 18, so that the conductive plate 18 and the elevating block 16 keep synchronous up and down movement, when the deformation amount of the first spring 17 changes, the conductive plate 18 moves along the axis of the stopper rod 28, and the stopper rod 28 is prevented from separating from the elevating rod 15 by the stopper 29.

As shown in fig. 3, a gap is formed above the outer tub 5, a water filling port is formed at the bottom of the gap, a sealing plug 30 is arranged on the inner side of the water filling port, the periphery of the sealing plug 30 is hermetically connected with the inner wall of the water filling port, and a handle 31 is arranged above the water filling port.

Can open sealing plug 30 through handle 31 for sealing plug 30 moves upwards, breaks away from the water filling port, and then the user can pour water into to the breach, and rivers get into in outer bucket 5 and the interior bucket 6 along the water filling port, then can fill in the water filling port with sealing plug 30 in, rivers heat dissipation when avoiding heating.

Preferably, in order to facilitate the sealing plug 30 to be inserted into the water filling opening, the bottom end of the sealing plug 30 is shaped like a truncated cone, the minimum outer diameter of the sealing plug 30 is smaller than the inner diameter of the water filling opening, and the outer diameter of the top of the sealing plug 30 is larger than the inner diameter of the water filling opening. By adopting the shape design, the size of the sealing plug 30 far away from the handle 31 is reduced, and the sealing plug 30 is conveniently plugged into the water filling opening.

Preferably, in order to realize the lifting movement of the lifting plate 12, the lifting assembly comprises a bottom plate 32 and two lifting units, the bottom plate 32 is fixed between the support legs 4, the two lifting units are respectively positioned at two sides above the bottom plate 32, the lifting units comprise a motor 33, a screw rod 34 and a bearing 35, the motor 33 is fixed below the platform 3, the motor 33 is electrically connected with the PLC, the bearing 35 is fixed above the bottom plate 32, the motor 33 is in transmission connection with one end of the screw rod 34, the other end of the screw rod 34 is arranged in the bearing 35, and a thread matched with the screw rod 34 is arranged at the connection part of the lifting plate 12 and the screw rod 34. The PLC controls the motor 33 to start, drives the screw rod 34 to rotate under the supporting action of the bearing 35, and the screw rod 34 acts on the lifting plate 12 through threads, so that the lifting plate 12 moves along the axis of the screw rod 34.

Preferably, the lower end of the foot 4 is provided with a universal wheel 36 for facilitating movement of the device.

This water heater is in the course of the work, utilize the electric current that coil 13 passes through, produce the magnetic field of alternation, act on interior bucket 6 and outer bucket 5 simultaneously, make equipment heat two positions simultaneously, heating efficiency is improved, utilize the installation component convenience to fix heat preservation lid 8 in insulating tube 7 top, carry out thermal-insulated processing through first thermal-insulated cotton 10 and the thermal-insulated cotton 11 of second, prevent that the heat from giving off, heating efficiency has further been improved, moreover, can drive elevator 16 and current conducting plate 18 through the elevating module and go up and down to remove, the circular telegram of adjusting coil 13 is regional, thereby change the scope of action in magnetic field, avoid the extravagant electric energy of unnecessary position circular telegram of coil 13, thereby realize energy-conserving effect, the practicality of equipment has been improved.

Compared with the prior art, this high-efficient type water heater with adjustable based on electromagnetic induction heating principle can make things convenient for coil 13 to heat simultaneously inside and outside two directions through depositing water mechanism, the change in abundant rational utilization magnetic field, improve heating efficiency, and thermal-insulated heat preservation is handled, avoid the heat to give off, further improve heating efficiency, moreover, can be according to the circular telegram region of water level control coil 13 through electromagnetic mechanism, and then adjust the magnetic field scope, avoid the circular telegram of coil 13 unnecessary position to cause the electric energy waste, realize energy-conserving effect, the practicality of equipment has been improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An adjustable efficient water heater based on an electromagnetic induction heating principle is characterized by comprising an operator (1), a power supply (2), a platform (3), an electromagnetic mechanism, a water storage mechanism and a plurality of support legs (4), wherein the water storage mechanism and the operator (1) are arranged above the platform (3), a PLC is arranged in the operator (1), the support legs (4) and the power supply (2) are fixed below the platform (3), and the power supply (2) is electrically connected with the PLC;

the water storage mechanism comprises an outer barrel (5), an inner barrel (6), a heat preservation pipe (7), a heat preservation cover (8) and a plurality of mounting components, wherein the outer barrel (5) is positioned above the platform (3), a notch is formed below the outer barrel (5), the inner barrel (6) is arranged in the notch, a plurality of connecting pipes (9) are arranged on the periphery of the bottom of the inner barrel (6), the inner barrel (6) is communicated with the bottom of the outer barrel (5) through the connecting pipes (9), the outer barrel (5) is positioned on the inner side of the heat preservation pipe (7), the heat preservation pipe (7) is fixed above the platform (3), the heat preservation cover (8) is covered on the top end of the heat preservation pipe (7), the mounting components are circumferentially and uniformly distributed below the heat preservation cover (8), the heat preservation cover (8) is connected with the heat preservation pipe (7) through the mounting components, first heat insulation cotton (10) is arranged below the heat preservation cover (8), the inner wall of the heat-insulating pipe (7) is provided with second heat-insulating cotton (11);

the electromagnetic mechanism comprises a lifting assembly, a lifting plate (12), a coil (13), a conducting wire (14) and two short circuit assemblies, wherein the lifting assembly and the lifting plate (12) are both positioned below the platform (3), the lifting assembly is in transmission connection with the lifting plate (12), two ends of the coil (13) are respectively connected with two ends of a power supply (2), the coil (13) is sleeved on the inner barrel (6), the two short circuit assemblies are respectively positioned on two sides of the coil (13), each short circuit assembly comprises a lifting rod (15), a lifting block (16), a first spring (17) and a conducting plate (18), the bottom end of the lifting rod (15) is fixed above the lifting plate (12), the top end of the lifting rod (15) is fixedly connected with the lifting block (16), and the conducting plate (18) is arranged on one side, close to the coil (13), of the lifting block (16) through the first spring (17), the first spring (17) is in a compressed state, and two ends of the lead (14) are respectively connected with the conductive plates (18) in the two short-circuit assemblies.

2. The adjustable efficient water heater based on the electromagnetic induction heating principle as claimed in claim 1, wherein the mounting assembly comprises a mounting pipe (19), a fixing ring (20), a draw hook (21) and a sliding rod (22), the mounting pipe (19) is vertically fixed below the heat-insulating cover (8) downwards, the fixing ring (20) is fixed on the heat-insulating pipe (7), the fixing ring (20) is connected with the draw hook (21), the draw hook (21) is fixed at the bottom end of the sliding rod (22), the top end of the sliding rod (22) is arranged in the mounting pipe (19), a second spring (23) and a pull plate (24) are arranged in the mounting pipe (19), the pull plate (24) is connected with the top in the mounting pipe (19) through the second spring (23), and the second spring (23) is in a stretching state.

3. The adjustable high-efficiency water heater based on the electromagnetic induction heating principle as claimed in claim 2, wherein a limiting ring (25) is arranged at the pipe orifice of the mounting pipe (19), and the limiting ring (25) is sleeved on the sliding rod (22).

4. The adjustable high efficiency water heater based on electromagnetic induction heating principle as claimed in claim 1, characterized in that a water level sensor (26) is provided at the top inside the outer tub (5), and the water level sensor (26) is electrically connected with the PLC.

5. The adjustable high-efficiency water heater based on the electromagnetic induction heating principle as claimed in claim 1, wherein a plurality of sockets are arranged at the bottom inside the outer tub (5), a plurality of inserting rods (27) are arranged above the platform (3), the number of the inserting rods (27) is equal to that of the sockets, the inserting rods (27) correspond to the sockets one-to-one, the top ends of the inserting rods (27) are arranged in the sockets, and the bottom ends of the inserting rods (27) are fixed above the platform (3).

6. The adjustable efficient water heater based on the electromagnetic induction heating principle as claimed in claim 1, wherein the short circuit assembly further comprises four limiting units, the four limiting units are respectively located at four corners of one side of the conductive plate (18) close to the lifting block (16), the limiting units comprise limiting rods (28) and limiting blocks (29), the limiting blocks (29) are fixedly connected with the conductive plate (18) through the limiting rods (28), and the lifting block (16) is sleeved on the limiting rods (28).

7. The adjustable efficient water heater based on the electromagnetic induction heating principle as claimed in claim 1, wherein a gap is provided above the outer tub (5), a water filling port is provided at the bottom inside the gap, a sealing plug (30) is provided at the inner side of the water filling port, the periphery of the sealing plug (30) is hermetically connected with the inner wall of the water filling port, and a handle (31) is provided above the water filling port.

8. The adjustable high efficiency water heater based on the electromagnetic induction heating principle as claimed in claim 7, wherein the bottom end of the sealing plug (30) is shaped as a circular truncated cone, the minimum outer diameter of the sealing plug (30) is smaller than the inner diameter of the water filling port, and the outer diameter of the top of the sealing plug (30) is larger than the inner diameter of the water filling port.

9. The adjustable high-efficiency water heater based on the electromagnetic induction heating principle as claimed in claim 1, wherein the lifting assembly comprises a bottom plate (32) and two lifting units, the bottom plate (32) is fixed between the support legs (4), the two lifting units are respectively positioned at two sides above the bottom plate (32), the lifting units comprise a motor (33), a screw rod (34) and a bearing (35), the motor (33) is fixed below the platform (3), the motor (33) is electrically connected with the PLC, the bearing (35) is fixed above the bottom plate (32), the motor (33) is in transmission connection with one end of the screw rod (34), the other end of the screw rod (34) is arranged in the bearing (35), and the connection part of the lifting plate (12) and the screw rod (34) is provided with a thread matched with the screw rod (34).

10. An adjustable high efficiency water heater based on electromagnetic induction heating principle as claimed in claim 1, characterized in that the bottom end of the supporting leg (4) is provided with a universal wheel (36).