WO2018157316A1 - Water heater - Google Patents

Abstract

A water heater, comprising a housing (10) and an insulation plate (20), the insulation plate (20) being provided with a top surface (21) arranged opposite an inner wall surface of the housing (10), the top surface (21) being arranged in the shape of a plate surface, the top surface (21) being arranged at an interval from the inner wall surface of the housing (10) so as to form an accommodating space, the top surface (21) being provided with a first thermal insulation piece (40) filling the accommodating space, the thermal conductivity of the first thermal insulation piece (40) being less than 0.12 watts per meter per degree.

Description

 Water heater

Technical field

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

Background technique

In order to obtain good wall mounting strength when the water heater is installed on the wall, the wall mounting components are generally made of metal. The metal member has a high thermal conductivity, especially the inner wall hanging plate connected to the inner tank of the water heater, and the heat of the inner liner is easily lost through it.

The insulation board of the existing water heater is installed between the inner wall hanging plate and the inner wall of the water heater shell. After the wall mounting, the heat is easily transmitted through the wall mounting device to the inner tank of the water heater, thereby causing heat loss, which is disadvantageous for the heat preservation of the inner tank. The energy saving effect is not ideal.

Summary of the invention

The main object of the present invention is to provide a water heater, which aims to improve the heat preservation effect of the water heater liner and make the water heater more energy efficient.

In order to achieve the above object, a water heater according to the present invention includes a casing and an insulating plate, the insulating plate having a top surface disposed opposite to an inner wall surface of the casing, the top surface being disposed in a plate surface, the top The surface is spaced apart from the inner wall surface of the casing to form an accommodating space, and the top surface is provided with a first heat insulating member filling the accommodating space, and the first heat insulating member has a thermal conductivity of less than 0.12 watt. / meter•degree.

Preferably, the top surface of the insulating plate is provided with a mounting portion, and the first heat insulating member is clamped or pressed on the top surface of the insulating plate by the mounting portion.

Preferably, the top surface is provided with a card slot for mounting the first heat insulation member, and the first heat insulation member is retained in the card slot.

Preferably, an annular rib for holding the first heat insulating member is vertically disposed on the top surface.

Preferably, the top surface is provided with a lug for pressing the first heat insulating member.

Preferably, the first thermal insulation member is an aerogel felt.

Preferably, the first heat insulating member is fixed to the top surface of the insulating plate in a non-detachable manner.

Preferably, the first heat insulating member and the insulating plate are integrally formed composite plates.

The invention also provides an electric water heater comprising an inner wall hanging plate and an insulating plate, the insulating plate having a bottom surface opposite to the inner wall hanging plate, wherein the bottom surface is provided with a second heat insulating member, the second partition The thermal conductivity of the hot part is less than 0.12 W/m•degree.

Preferably, the second heat insulating member is an aerogel felt, and the aerogel felt and the insulating plate are integrally formed composite plates.

The invention provides a top surface of the insulating plate in a plate surface shape so as to have an effective heat insulating surface between the top surface and the inner wall surface of the casing, and further, the top surface is spaced apart from the inner wall surface of the casing to form the receiving surface. The space, wherein the accommodating space is a heat insulating space having a heat insulating surface, the insulating space having a thickness ranging from a top surface to an inner wall surface of the casing. A first heat insulating member filling the accommodating space is disposed on the top surface to increase an effective heat insulating volume of the insulating plate to improve the heat insulating performance of the insulating plate. In addition, the first heat insulating member is a heat insulating material having a thermal conductivity of less than 0.12 watts/m•degree to improve the overall heat insulating performance of the insulating plate, and the heat of the heat sink liner is dissipated through the inner wall hanging plate. The heat preservation effect of the water heater is strengthened, and the electric water heater is more energy-saving.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain other drawings according to the structures shown in the drawings without any creative work.

1 is a schematic view showing the internal structure of an embodiment of a water heater according to the present invention;

2 is a schematic structural view of a first embodiment of an insulating plate of a water heater according to the present invention;

3 is a schematic structural view of a second embodiment of an insulating plate of a water heater according to the present invention;

4 is a schematic structural view of a third embodiment of an insulating plate of a water heater according to the present invention;

Figure 5 is an exploded perspective view of another embodiment of the water heater of the present invention.

Description of the reference numerals:

Label  name  Label Name 10 case  215 Lug 20 Insulation board  216 Grip twenty one Top surface twenty two Bottom 211 Card slot  30 Inner wall hanging board 212  First yield gap  40 First insulation 213 Rib  50 Second insulation 214  Second yield gap

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the 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 in a certain posture (as shown in the drawing) The relative positional relationship between the components, the motion situation, and the like, if the specific posture changes, the directional indication also changes accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of the "first", "second", etc. is used for the purpose of description only, and is not to be construed as an Its relative importance or implicit indication of the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.

The invention proposes a water heater.

In the embodiment of the present invention, as shown in FIGS. 1 to 2, the solid line with an arrow in the figure indicates a plane or a space such as a face, a cavity, a hole, or the like. The water heater comprises a casing 10 and an insulating plate 20, and the insulating plate 20 has a top surface 21 disposed opposite to an inner wall surface of the casing 10. The top surface 21 is disposed in a plate surface, and the top surface 21 is spaced apart from the inner wall surface of the casing 10. To form the accommodating space, the top surface 21 is provided with a first heat insulating member 40 filling the accommodating space, and the first heat insulating member 40 has a thermal conductivity of less than 0.12 watts/meter.

Specifically, as shown in FIG. 1, in the first embodiment, the water heater includes a casing 10 and an insulating plate 20, and the insulating plate 20 is placed in the casing 10 for isolating the heat of the inner tank to prevent the heat of the inner tank from passing through. The wall mount is conducted out of the housing 10. The insulating plate 20 has a top surface 21 disposed opposite to the inner wall surface of the casing 10. The top surface 21 is disposed in a plate surface shape, and the plate surface may be a solid plate surface or a hollow plate surface, so that the top surface 21 and the shell surface The inner wall surface of the body 10 has an effective heat insulating surface. Further, the top surface 21 is spaced apart from the inner wall surface of the casing 10 to form an accommodating space to form a heat insulating space having a heat insulating surface as a cross section. The thickness of the space is the distance between the top surface 21 and the inner wall surface of the housing 10. The top surface 21 is provided with a first heat insulating member 40 filling the accommodating space to increase the effective heat insulating volume of the insulating sheet 20. As the heat insulating volume increases, the heat insulating performance of the insulating sheet 20 is better. In addition, the first heat insulating member 40 may be fixed on the top surface 21 of the insulating plate 20 by double-sided tape; or the first heat insulating member 40 and the insulating plate 20 may be fixed by a heat shrink film; or by external tying. The first heat insulating member 40 is fixed. Of course, the first heat insulating member 40 can be held by providing a snap portion on the insulating plate 20. A corresponding solution can be obtained by a person skilled in the art through the embodiments of the present invention and the accompanying drawings, and details are not described herein. It should be clarified that the first heat insulating member 40 is a heat insulating material having a thermal conductivity of less than 0.12 watts/m•degree. The first heat insulating member 40 may be of various types, such as polyurethane, phenolic, and foaming. The polypropylene EPP or the like is used to improve the overall heat insulation performance of the insulating plate 20, and the heat of the heat exchanger liner is prevented from being dissipated through the inner wall hanging plate 30. The heat preservation effect of the water heater is strengthened, and the electric water heater is more energy-saving.

In order to firmly place the first heat insulating member 40 on the top surface of the insulating plate 20, in the embodiment, the top surface 21 of the insulating plate 20 is provided with a mounting portion 22 for fixing the first heat insulating member. 40, the first heat insulating member 40 is clamped or pressed on the insulating plate 20 by the mounting portion 22, and the mounting portion 22 can be arranged in various manners, such as the mounting portion 22 being set as a card slot, a buckle or a lug. . In the first embodiment, the top surface 21 is provided with a card slot 211 for mounting the first heat insulating member 40. The card slot 211 is recessed from the top surface 21 toward the inner wall surface of the housing 10, and the card is formed. The groove wall of the groove 211 is connected to the side wall of the insulating plate 20 to increase the accommodation space in the card slot 211. The groove wall may have a continuous wall surface or a first relief notch 212. Preferably, the groove wall has a first relief notch 212 to facilitate installation of the first insulation member 40 within the card slot 211. Of course, the thickness of the first heat insulating member 40 is adapted to the depth of the card slot 211, so that the internal space of the card slot 211 can be fully utilized.

In order to more conveniently mount the first heat insulating member 40 on the insulating plate 20, in the second embodiment, the top surface 21 is vertically provided with an annular rib 213 for holding the first heat insulating member 40, the ring The plurality of ribs 213 may be plural, and the first heat insulating member 40 is held by the annular rib 213 on the top surface 21 of the insulating plate 20 for easy removal. It should be clarified that, in order to reduce the friction between the first heat insulating member 40 and the annular rib 213, the annular rib 213 is provided with a second letting notch 214, and the second retaining notch 214 may be multiple, multiple The two retaining notches 214 are evenly spaced on the annular rib 213 to reduce the contact surface between the annular rib 213 and the first heat insulating member 40, so that the annular rib 213 is smoothly inserted into the first heat insulating member 40. Installed in the hole. Further, when the top surface 21 of the insulating plate 20 to the bottom wall of the insulating plate 20 has a cavity, the annular bead 213 may extend toward the cavity to the bottom wall of the insulating plate 20 to strengthen the support of the annular bead 213 strength.

In order to further conveniently mount the first heat insulating member 40 to the insulating plate 20, in the third embodiment, the top surface 21 is provided with a lug 215 for holding the first heat insulating member 40, the lug The 215 may be extended from the one side of the insulating plate 20 toward the inner wall surface of the casing 10 and then bent in the direction of the insulating plate 20 to form the nip portion 216. The first heat insulating member 40 is disposed in a thick felt shape or a plate shape. The first heat insulating member 40 is mounted on the insulating plate 20 through the clamping portion 216, so that the first heat insulating member 40 can be disassembled and assembled, and the lug 215 can be There are a plurality of to increase the clamping force, and the plurality of lugs 215 need to be disposed in the same direction.

In order to enhance the thermal insulation performance, in the present embodiment, the first thermal insulation member 40 is an aerogel felt, and the aerogel has the characteristics of low thermal conductivity and has a better barrier effect on heat conduction. At the same time, the first heat insulating member 40 is made into an aerogel felt, and the aerogel material can be attached to the top surface 21 of the insulating plate 20 to produce a certain deformation, thereby The surface of the insulating plate 20 is in full contact and functions as a good thermal barrier. In order to install the aerogel more stably, the aerogel can be fixed to the top surface 21 of the insulating plate 20 in a non-removable manner. There are various ways of non-removable, such as: fixing by double-sided adhesive bonding, passing The aerogel is fixed to the insulating plate 20 by means of heat shrink film fixing or external tying. Of course, it is also possible to fix the aerogel and the insulating sheet 20 integrally. Preferably, the first heat insulating member 40 and the insulating plate 20 are integrally formed composite plates, which can improve production efficiency and make the insulating plate 20 more uniform.

The invention also provides a water heater,

In another embodiment, as shown in Figures 1-2, the solid lines with arrows in the figures indicate planes or spaces such as faces, cavities, holes, and the like. The water heater includes an inner wall hanging plate 30 and an insulating plate 20. The insulating plate 20 has a bottom surface 22 opposite to the inner wall hanging plate 30. The bottom surface 22 is provided with a second heat insulating member 50, and the thermal conductivity of the second heat insulating member 50 Less than 0.12 W/m•degree.

Specifically, as shown in FIG. 1 , in the embodiment of the present invention, the water heater includes an inner wall hanging plate 30 and an insulating plate 20 , and the insulating plate 20 is disposed on the inner wall hanging plate 30 for isolating the heat of the inner liner to prevent the inner liner. Heat is conducted out of the housing 10 of the water heater through the wall mount. The insulating plate 20 has a bottom surface 22 opposite to the inner wall hanging plate, and the bottom surface is provided with a second heat insulating member 50. Here, it should be clarified that the bottom surface 22 of the insulating plate 20 is provided by the second heat insulating member 50. The heat insulating coefficient of the large insulating plate 20 can be set in various manners, for example, the second heat insulating member 50 can be fixed on the bottom surface 22 of the insulating plate 20 by double-sided tape; or the second heat insulating film can be passed through the heat shrink film. The member 50 is fixed to the insulating plate 20; or the second heat insulating member 50 is fixed or the like by external tying. A corresponding solution can be obtained by a person skilled in the art through the embodiments of the present invention and the accompanying drawings, and details are not described herein. It should be clarified that the second heat insulating member 50 is a heat insulating material having a thermal conductivity of less than 0.12 watts/m•degree. The second heat insulating member 50 may be of various types, such as polyurethane, phenolic, and foaming. The polypropylene EPP or the like is used to improve the overall heat insulation performance of the insulating plate 20, and the heat of the heat exchanger liner is prevented from being dissipated through the inner wall hanging plate 30. The heat preservation effect of the water heater is strengthened, and the electric water heater is more energy-saving.

In order to enhance the thermal insulation performance, in the embodiment, the second thermal insulation member 50 is an aerogel felt, and the aerogel has the characteristics of low thermal conductivity and has a better barrier effect on heat conduction. At the same time, the second heat insulating member 50 is made into an aerogel felt, which utilizes the characteristics that the aerogel material has flexibility, and the aerogel felt can adhere to the surface of the insulating plate 20 to generate a certain deformation, thereby interacting with the insulating plate. The surface of 20 is in full contact and acts as a good thermal barrier. In order to install the aerogel more stably, the aerogel can be fixed to the bottom surface 22 of the insulating plate 20 in a non-detachable manner, and the non-removable manner can be various, such as: fixing by double-sided adhesive bonding, passing through the heat shrinkable film. The aerogel is fixed to the insulating plate 20 by means of fixing or external tying. Of course, it is also possible to fix the aerogel and the insulating sheet 20 integrally. Preferably, the second heat insulating member 50 and the insulating plate 20 are integrally formed composite plates, which can improve production efficiency and make the insulating plate 20 more uniform.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structural transformation, or direct/indirect use, of the present invention and the contents of the drawings are used in the inventive concept of the present invention. It is included in the scope of the patent protection of the present invention in other related technical fields.

Claims (10)

A water heater includes a casing and an insulating plate, wherein the insulating plate has a top surface disposed opposite to an inner wall surface of the casing, and the top surface is disposed in a plate surface shape, and the top surface is The inner wall surfaces of the housing are spaced apart to form an accommodating space, and the top surface is provided with a first heat insulating member filling the accommodating space, and the first heat insulating member has a thermal conductivity of less than 0.12 watt/meter. degree. The water heater according to claim 1, wherein a top surface of the insulating plate is provided with a mounting portion, and the first heat insulating member is held or pressed by the mounting portion on a top surface of the insulating plate. on. The water heater according to claim 2, wherein the top surface is provided with a card slot for mounting the first heat insulating member, and the first heat insulating member is retained in the card slot. The water heater according to claim 2, wherein said top surface is vertically provided with an annular rib for holding said first heat insulating member. A water heater according to claim 2, wherein said top surface is provided with a lug for holding said first heat insulating member. The water heater according to any one of claims 1 to 5, wherein the first heat insulating member is an aerogel felt. A water heater according to any one of claims 1 to 4, wherein said first heat insulating member is fixed to a top surface of said insulating plate in a non-detachable manner. The water heater according to claim 7, wherein said first heat insulating member and said insulating plate are integrally formed composite plates. A water heater includes an inner wall hanging plate and an insulating plate, wherein the insulating plate has a bottom surface opposite to the inner wall hanging plate, and the bottom surface is provided with a second heat insulating member, and the second heat insulating layer The thermal conductivity of the piece is less than 0.12 W/m•degree. The water heater according to claim 9, wherein said second heat insulating member is an aerogel felt, and said aerogel felt and said insulating plate are integrally formed composite plates.