CN106016705A - Water storage type electric water heater - Google Patents

Abstract

The invention discloses a water storage type electric water heater, which comprises a shell, an inner tank, a heater and an electric controller; the inner tank is installed in the outer shell, and one end surface of the inner tank is installed The end surface; the heater includes a heating tube and a mounting seat connected to the heating tube; the mounting seat is installed on the mounting end surface, and the heating tube extends from the mounting seat to the middle of the inner container; The electric controller is arranged on the outer wall of the shell and is electrically connected to the heater; an insulating layer wrapping the inner liner is provided between the inner liner and the outer shell; the insulating layer includes The thermal insulation layer body and the thermal insulation cover; the thermal insulation layer body is provided with a relief opening corresponding to the position and size of the mounting seat, and the thermal insulation cover is arranged to block the relief opening. The technical scheme of the invention can improve the thermal insulation effect at the installation end surface.

Description

storage type electric water heater

technical field

The invention relates to the technical field of water heaters, in particular to a water storage electric water heater.

Background technique

The existing water storage type electric water heater includes a casing and an inner tank installed in the outer casing. One end face of the inner tank is the installation end face, the heater of the water heater is installed at the installation end face, and the electric control room is arranged between the installation end face and the outer casing. and electrically connected to the heater. For heat preservation, a foam insulation layer is formed in the cavity between the inner tank and the outer shell, wrapping and sealing most of the inner tank in the foam insulation layer, effectively reducing the heat loss of hot water in the tank. Since the heater and the electric control room are arranged at the installation end face, a larger space needs to be provided at the installation end face for the installation, disassembly and maintenance of the heater and the electric control room, so the foam insulation layer needs to reserve a larger area corresponding to the installation end face. In the prior art, thermal insulation cotton is usually set for the opening position, and insulation is carried out by blocking the opening. However, due to the large area of the opening, the thermal conductivity of the thermal insulation cotton is high, and the heat dissipation of the heater and the circuit board itself is large, so The installation end face of the water storage type electric water heater becomes an obvious heat leakage site, resulting in poor insulation effect at the installation end face.

Contents of the invention

The main purpose of the present invention is to provide a water storage type electric water heater, aiming at improving the thermal insulation effect at the installation end face.

In order to achieve the above object, the water storage type electric water heater proposed by the present invention includes a shell, an inner tank, a heater and an electric controller; the inner tank is installed in the outer shell, and one end face of the inner tank is an installation end face; The heater includes a heating pipe and a mounting seat connected to the heating pipe; the mounting seat is installed on the mounting end surface, and the heating pipe extends from the mounting seat to the middle of the inner container; the The electric controller is arranged on the outer wall of the shell and is electrically connected to the heater; an insulating layer wrapping the inner liner is provided between the inner liner and the outer shell; the insulating layer includes an insulating layer Body and insulation cover; the insulation layer body is provided with a relief opening corresponding to the position and size of the installation seat, and the heat preservation cover is set to block the relief opening.

Preferably, the storage-type electric water heater also includes a cover detachably installed with the casing, the cover and the casing are enclosed to form an accommodating cavity; the electric controller is installed in the accommodating cavity.

Preferably, the water inlet pipe and the water outlet pipe of the water storage electric water heater are electric wall pipes; the electric wall assembly of the water inlet pipe and the electric wall assembly of the water outlet pipe are both accommodated in the accommodating cavity middle.

Preferably, the insulation layer body is made of rigid polyurethane foam.

Preferably, the heat insulation layer body includes a main body and a first auxiliary part and a second auxiliary part spliced with the main body, the main body covers the peripheral wall of the liner, and the first auxiliary part covers The installation end surface, the second auxiliary part wraps the end surface of the liner away from the installation end surface; the relief opening is provided on the first auxiliary part.

Preferably, the thermal insulation cover includes thermal insulation cotton arranged against the installation seat, and a pressing device provided on a side of the thermal insulation cotton facing away from the installation seat.

Preferably, the thermal insulation cotton is provided with a thermal insulation cavity for accommodating the mounting seat.

Preferably, a liner port and a liner flange installed on the liner port are provided on the installation end surface;

The mounting seat includes a chassis that abuts on the flange of the gallbladder and a pressure plate located at the end of the chassis facing away from the flange of the gallbladder, the chassis and the pressure plate are fixed to the flange of the gallbladder by bolts connection; the pressing device is installed in cooperation with the bolt, so as to fix the heat preservation cover on the mounting seat.

Preferably, the housing includes a shell with one end open, and an end cover that covers the opening of the shell; the end cover is set at a position corresponding to the installation end surface; the electric controller is arranged on the shell on the outer wall of the body.

Preferably, the storage-type electric water heater is a horizontal water heater, the installation end face is the right end face of the inner tank, the water inlet pipe and the water outlet pipe extend into the inner tank from the bottom of the shell, so The cover is arranged at the bottom of the casing.

In the water storage type electric water heater of the technical solution of the present invention, the electric controller is installed on the outer wall surface of the shell, so when the thermal insulation layer body is provided with a relief opening for installation and maintenance for the components at the installation end surface, it only needs to be reserved for the installation seat. There is no need to reserve an operating space for the electric controller, so the size of the relief opening only needs to match the size of the mounting base. Compared with the prior art, the size of the relief opening can be greatly reduced Small, so as to ensure that the installation end of the inner tank can be filled with thermal insulation material as much as possible, thereby reducing the contact area between the installation end and the air, and reducing heat loss; the insulation cover is set to block the opening, and when the heat When it is transferred to the heat preservation cover, the heat preservation cover can block the heat from continuing to radiate outward, further improving the heat preservation effect; at the same time, when the electric controller is moved to the outer wall of the shell, the ambient temperature of the electronic components inside the electric controller is relatively low , and the heat generated during its working process can be exported in time, thus prolonging the service life of the electric controller.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the storage type electric water heater of the present invention;

Fig. 2 is a schematic diagram of an exploded structure of the water storage electric water heater shown in Fig. 1;

FIG. 3 is a partial enlarged view of A in FIG. 1 .

Explanation of reference numbers:

label name label name 100 shell 200 liner 300 heater 400 electric controller 500 Insulation 600 Cover 700 Inlet pipe 800 outlet pipe 110 case 120 end cap 210 Mounting face 211 guts 211 212 Bile flange 310 Heating pipe 320 mount 321 chassis 322 Platen 323 bolt 401 integrated wire 510 Insulation layer body 520 insulation cover 511 give way 512 Main body 513 First Auxiliary Department 514 Second Auxiliary Department 521 Insulation cotton 522 Compression device 523 Insulation cavity 610 Accommodating cavity

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second" and so on in the embodiments of the present invention, the descriptions of "first", "second" and so on are only for descriptive purposes, and should not be interpreted as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

The invention provides a water storage type electric water heater.

Please refer to Fig. 1 and Fig. 2, what the solid line with arrow in the figure indicates is space (for example hole, chamber) or surface, in the embodiment of the present invention, this storage type electric water heater comprises shell 100, liner 200, heating device 300 and electric controller 400; the inner tank 200 is installed in the shell 100, and one end face of the inner tank 200 is the installation end face 210; the heater 300 includes a heating tube 310 and the heating tube 310 connected mounting base 320; the mounting base 320 is mounted on the mounting end surface 210, and the heating tube 310 extends from the mounting base 320 to the middle of the liner 200; the electric controller 400 is located on the The outer wall surface of the casing 100 is electrically connected to the heater 300; an insulating layer 500 wrapping the inner container 200 is provided between the inner container 200 and the outer casing 100; the insulating layer 500 includes an insulating Layer body 510 and heat preservation cover 520; the heat preservation layer body 510 is provided with a relief opening 511 corresponding to the position and size of the installation seat 320, and the heat preservation cover 520 is set to block the relief opening 511.

In the water storage type electric water heater of the technical solution of the present invention, the electric controller 400 is installed on the outer wall surface of the casing 100, so when the insulation layer body 510 is provided with an installation and maintenance relief opening 511 for the components at the installation end surface 210, only Reserve a space for the mounting seat 320 without reserving an operating space for the electric controller 400, so the size of the relief opening 511 only needs to match the size of the mounting seat 320. Compared with the prior art, The size of the relief opening 511 can be greatly reduced, thereby ensuring that the installation end surface 210 of the liner 200 can be filled with thermal insulation material as much as possible, thereby reducing the contact area between the installation end surface 210 and the air, and reducing the loss of heat. loss; the heat preservation cover 520 is set to block the opening 511 for giving way, and when the heat is transferred to the heat preservation cover 520, the heat preservation cover 520 can stop the heat from continuing to radiate outwards, further improving the heat preservation effect; meanwhile, when the electric controller 400 moves outwards to Behind the outer wall of the housing 100 , the ambient temperature of the electronic components inside the electric controller 400 is relatively low, and the heat generated during the working process can be exported in time, thus prolonging the service life of the electric controller 400 .

Please refer to Fig. 1, in order to protect the electric controller 400, a cover body 600 detachably installed with the shell 100 can be set in the storage type electric water heater, and the cover body 600 is enclosed with the shell 100 An accommodating cavity 610 is formed; the electric controller 400 is installed in the accommodating cavity 610 . The cover body 600 covers the electric controller 400 to seal the electric controller 400 and protect the electric controller 400. Meanwhile, it can also improve the safety of using electricity and beautify the appearance of the storage type electric water heater. The electric controller 400 is electrically connected to the heater 300 through the integrated wire 401. When the electric controller 400 needs to be repaired, the cover body 600 and the shell 100 need to be disassembled to reveal the electric controller 400. Operations such as maintenance and replacement of the electric controller 400 are affected.

In order to ensure the safety of users, the water inlet pipe 700 and the water outlet pipe 800 of the water storage electric water heater are usually set as anti-electric wall water pipes; at this time, the cover body 600 can also be used as an anti-electric wall outer cover at the same time, please refer to Figure 1 for details , the anti-electric wall assembly of the water inlet pipe 700 and the anti-electric wall assembly of the water outlet pipe 800 are both accommodated in the accommodating cavity 610 . The cover body 600 covers the anti-electric wall assembly and the electric controller 400 of the water inlet pipe 700 and the water outlet pipe 800 at the same time, and protects the electric controller 400 and the anti-electric wall assembly at the same time, which improves the safety of electricity use; The outer cover of the anti-electric wall assembly and the outer cover of the electric controller 400, therefore, under the premise of realizing the corresponding functions, the structure of the water storage electric water heater is simplified, and the integration of the appearance of the water storage electric water heater is improved. This makes the storage type electric water heater more beautiful.

Please refer to FIG. 2 , in order to facilitate the molding and installation of the insulation layer body 510, the insulation layer body 510 can be set to include a main body portion 512 and a first auxiliary portion 513 and a second auxiliary portion 514 spliced with the main body portion 512, so that The main body part 512 covers the peripheral wall of the inner container 200, the first auxiliary part 513 covers the installation end surface 210, and the second auxiliary part 514 covers the part of the inner container 200 away from the installation end surface 210. End face; the relief opening 511 is disposed on the first auxiliary portion 513 . The shape and thickness of the first auxiliary part 513 and the second auxiliary part 514 can be set according to the shape and the gap of the corresponding positions of the shell and the inner tank, which respectively heat the two end faces, and the second main body part 512 heats the middle part of the inner tank 200 For heat preservation, the main body part 512 is spliced with the first auxiliary part 513 and the second auxiliary part 514 to avoid convective loss of heat from the gap. In order to ensure the thermal insulation performance of the thermal insulation layer body 510, it is preferable that the material of the thermal insulation layer body 510 is rigid polyurethane foam; the rigid polyurethane foam plastic has excellent thermal insulation performance and can achieve a better thermal insulation effect. In order to better match the main body 512 with the outer wall of the inner container 200, so that the main body 512 fills the cavity between the inner container 200 and the outer shell 100, the first auxiliary part 513 and the second auxiliary part 513 can be made first during molding. auxiliary part 514, and the main body part 512 is integrally foamed in the cavity formed by the inner container 200, the outer shell 100, the first auxiliary part 513 and the second auxiliary part 514. Forming; thus, the main body part 512 can achieve a better filling effect, and the first auxiliary part 513 and the second auxiliary part 514 can effectively avoid the deformation and damage of the end cap of the shell 100 caused by foaming pressure.

The heat preservation cover 520 is used to block the relief opening 511, reduce the heat convection at the relief opening 511, and insulate the mounting seat 320, please refer to Fig. 2 and Fig. 3, in this embodiment, the heat preservation cover 520 It includes thermal insulation cotton 521 arranged against the installation seat 320 , and a pressing device 522 arranged on the side of the thermal insulation cotton 521 facing away from the installation seat 320 . The pressing device 522 can be installed in cooperation with the mounting seat 320 to compress the thermal insulation cotton 521 to the mounting seat 320; the pressing device 522 can also be used as a gasket, by abutting against the shell 100, and transmitting the reaction force of the shell 100 to the Insulation cotton 521 places, compress insulation cotton 521. Wherein, the thermal insulation cotton 521 can be thermal insulation cotton made of glass fiber material or thermal insulation cotton made of airgel material, etc. Since airgel thermal insulation material has excellent thermal insulation performance, thermal insulation cotton made of airgel material is preferred here. The area of the thermal insulation cotton 521 can be slightly larger than the installation seat 320, so that the thermal insulation cotton 521 can well cover the installation seat 320, reducing the heat lost by convection heat transfer there. As a preferred solution, the thermal insulation cotton 521 can be provided with a thermal insulation cavity 523 for accommodating the mounting base 320, the shape of the thermal insulation cavity 523 matches the shape of the mounting base 320, and the mounting base 320 extends into the thermal insulation cavity 523. , completely covered by thermal insulation cotton 521, the thermal insulation effect is obviously improved.

Please refer to FIG. 3 , the specific cooperation mode between the mounting base 320 and the mounting end surface 210 may be as follows: the mounting end surface 210 is provided with a liner port 211 and a liner port flange 212 installed on the liner port 211 , and the mounting seat 320 It includes a chassis 321 abutting on the flange 212 of the gallbladder and a pressure plate 322 arranged on the side of the chassis 321 facing away from the flange 212 of the gallbladder. The chassis 321 and the pressure plate 322 are connected to the gallbladder by bolts. Port flange 212 is fixedly connected. The pressing plate 322 tightly presses the chassis 321 onto the tank flange 212, realizing the sealing between the mounting seat 320 and the tank flange 212; 520 is fixed to the mounting seat 320; thereby ensuring that the thermal insulation cotton 521 can be closely attached to the mounting seat 320, so as to achieve a better thermal insulation effect.

Please refer to FIG. 2 , the housing 100 includes a housing 110 with an open end, and an end cover 120 that covers the opening of the housing 110 ; the end cover 120 is set at a position corresponding to the installation end surface 210 ; The electric controller 400 is disposed on the outer wall of the casing 110 . When maintenance is required, the installation end surface 210 and other components therein can be maintained by opening the end cover 120 .

The water storage electric water heater of the present invention can be a vertical water heater or a horizontal water heater. Please refer to FIG. 1. In this embodiment, the water storage electric water heater is a horizontal water heater. The installation end surface 210 is the On the right end surface of the tank 200 , the water inlet pipe 700 and the water outlet pipe 800 protrude into the inner tank 200 from the bottom of the casing 100 , and the cover 600 is arranged at the bottom of the casing 100 . The electric controller 400 installed with electronic components such as thermostats and circuit boards will not affect the follow-up heater 300 and electric controller 400 by moving the lead wires outside to the cover body 600 (electric wall cover). Dismantling and maintenance, the area of the opening 511 is small, which can ensure that the right end surface of the inner tank 200 is filled with insulation materials as much as possible, and can improve the overall insulation performance of the electric water heater by 15%-25%. After the 400 is moved to the outside of the casing 100, the temperature of the internal electronic components is relatively low, and the heat generated in the working process can be dissipated in time to ensure a longer service life.

It should be noted that the technical solutions of the various embodiments of the present invention can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be regarded as The combination of schemes does not exist, nor is it within the scope of protection claimed by the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields, are all The same reasoning is included in the patent protection scope of the present invention.

Claims (10)

1. a storage-type electric water heater, it is characterised in that include shell, inner bag, heater and automatically controlled Device；

Described inner bag is installed in described shell, and the end face of described inner bag is for installing end face；

Described heater includes adding heat pipe and adding, with described, the mounting seat that heat pipe is connected；Described mounting seat is pacified Be loaded on described installation end face, described in add heat pipe and extend in the middle part of described inner bag from described mounting seat；

Described electric controller is located in the outside wall surface of described shell and is electrically connected at described heater；

The heat-insulation layer wrapping up described inner bag it is provided with between described inner bag and described shell；Described heat-insulation layer includes Heat-insulation layer body and insulation cover；The positions and dimensions of the corresponding described mounting seat of described heat-insulation layer body arranges and allows Position opening, described insulation cover closure described in step down opening arrange.

2. storage-type electric water heater as claimed in claim 1, it is characterised in that described Water storing electric heating Hydrophone also includes that the cover body detachably installed with described shell, described cover body and described shell enclose formation one Individual containing cavity；Described electric controller is installed in described containing cavity.

3. storage-type electric water heater as claimed in claim 2, it is characterised in that described Water storing electric heating The water inlet pipe of hydrophone and outlet pipe are electricity-insulation wall water pipe；

The anti-electricity wall component of described water inlet pipe and the anti-electricity wall component of described outlet pipe are all placed in described accommodating In chamber.

4. storage-type electric water heater as claimed in claim 1, it is characterised in that described heat-insulation layer body Material be polyurethane rigid foam plastic.

5. the storage-type electric water heater as according to any one of Claims 1-4, it is characterised in that institute State heat-insulation layer body and include main part and the first assisted parts spliced with described main part and the second auxiliary Portion, described main part is coated with the perisporium of described inner bag, and described first assisted parts is coated with described installation end face, Described second assisted parts is coated with the described inner bag end face away from described installation end face；Described opening of stepping down is located at On described first assisted parts.

6. the storage-type electric water heater as according to any one of Claims 1-4, it is characterised in that institute State insulation cover to include reclining the heat-preservation cotton that described mounting seat arranges, and it is described dorsad to be located at described heat-preservation cotton The hold down gag of mounting seat side.

7. storage-type electric water heater as claimed in claim 6, it is characterised in that described heat-preservation cotton is provided with The incubation cavity of accommodating described mounting seat.

8. storage-type electric water heater as claimed in claim 6, it is characterised in that on described installation end face It is provided with gallbladder mouth and the gallbladder mouth flange being installed on described gallbladder mouth；

Described mounting seat includes reclining the chassis of described gallbladder mouth flange and be located at described chassis the most described gallbladder mouth The pressing plate of flange one end, described chassis and described pressing plate are connected by bolt and described gallbladder mouth flange are fixing；

Described hold down gag coordinates installation with described bolt, so that described insulation cover is fixed to described mounting seat On.

9. the storage-type electric water heater as according to any one of Claims 1-4, it is characterised in that institute State shell and include the housing of one end open, and be covered on the end cap of the opening of described housing；Described end cap The position of corresponding described installation end face is arranged；Described electric controller is located in the outside wall surface of described housing.

10. the storage-type electric water heater as according to any one of Claims 1-4, it is characterised in that Described storage-type electric water heater is horizontal water heater, and described installation end face is the right side of described inner bag, institute Stating water inlet pipe and described outlet pipe and stretch into described inner bag from described outer casing bottom, described cover body is arranged at described Outer casing bottom.