CN216080398U - Inner container assembly and electric water heater - Google Patents

Abstract

The utility model discloses an inner container assembly and an electric water heater, comprising: the inner container comprises an arc surface component, and the arc surface component forms a closed shell; wherein, the magnesium rod assembly is arranged on the cambered surface assembly. Through setting up the inner bag to the closed housing who forms by the cambered surface subassembly centers on, simultaneously, through setting up the magnesium stick subassembly on the cambered surface subassembly, the shape and the whole size of inner bag can not influenced by the magnesium stick subassembly, can realize reducing or canceling the straightway connection with the straightway connection of flat inner bag, according to customer's individualized demand, with the inner bag design for satisfying customer's demand's arbitrary shape, realize improving space utilization, improve electric water heater's user experience nature's purpose.

Description

Inner container assembly and electric water heater

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to an inner container assembly and an electric water heater.

Background

At present, water heaters are household appliances commonly used in daily life of people, and the water heaters are divided into electric water heaters and gas water heaters according to different heating sources. The electric water heater is widely used due to the convenient installation. An electric water heater generally includes an inner container and an electric heater disposed in the inner container to heat water in the inner container by the electric heater.

For a conventional water storage type electric water heater, the conventional water storage type electric water heater generally comprises a water tank, an electric heating component and an electric control board, wherein the water tank comprises a shell and an inner container, the inner container is arranged in the shell, and an insulating layer is formed between the shell and the inner container to improve the insulating performance of the water tank. The conventional water tank is generally cylindrical, which results in a large space occupied by the electric water heater in a room, resulting in poor user experience. Chinese patent application No. 201810022007.1 discloses an inner container for an electric water heater, which adopts a two-section structure and forms a flat inner container shell, thereby reducing the occupancy of indoor space. However, if the magnesium rod is still installed on the straight line section of the inner container in the original installation mode, the thickness of the inner container is increased. Thereby affecting the overall physical size of the water heater.

In view of this, the utility model provides a water heater technology which aims to solve the technical problems that the indoor space occupation is reduced and the user experience is improved by selecting the reasonable installation position of a magnesium rod component.

Disclosure of Invention

The utility model provides an inner container assembly and an electric water heater, wherein the installation of a magnesium rod assembly does not influence the overall size of the inner container assembly, and the size and the shape of the inner container assembly can be designed in an individualized way, so that the space utilization rate is further improved, and the user experience of the electric water heater is improved.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

a liner assembly, comprising: the inner container comprises an arc surface component, and the arc surface component forms a closed shell; wherein, the magnesium rod assembly is arranged on the cambered surface assembly.

In some embodiments of the present application, the heat pipe assembly is disposed on the arc block assembly, the heat pipe assembly comprising: the heating pipe is arranged on the flange; the magnesium rod assembly is arranged on the flange; and a flange connector is formed on the cambered surface component, and the flange is connected with the flange connector. Through setting up the magnesium stick subassembly on heating pipe assembly's flange, realized the integration of magnesium stick subassembly and heating pipe assembly, the effectual tie point that has reduced magnesium stick subassembly, heating pipe assembly and first courage shell, second courage shell, greatly reduced the risk of leaking of inner bag.

In some embodiments of the present application, a first mounting opening is formed in the arc surface assembly, and the magnesium rod assembly is mounted in the inner container through the first mounting opening. Through with magnesium stick subassembly direct mount on the cambered surface subassembly, when needs are dismantled magnesium stick subassembly, can directly pull down it, the maintenance in the later stage of being convenient for.

In some embodiments of the present application, the magnesium rod assembly includes a magnesium rod having an external thread formed at one end thereof, the first mounting port being provided with an internal thread in which one end of the magnesium rod is screwed. One end of the magnesium rod is connected with the flange connecting port through threads, so that the detachable function can be realized, and meanwhile, the sealing can be realized.

In some embodiments of the present application, the magnesium rod assembly further comprises a nut disposed at one end of the magnesium rod. Through being provided with the nut in the one end of magnesium stick, the person of being convenient for dismantles the magnesium stick through swivel nut.

In some embodiments of the present application, the magnesium rod assembly further comprises a sealing ring compressed between the nut and the arc assembly. The sealing ring is arranged between the nut and the cambered surface component, so that the sealing of the joint can be ensured.

In some embodiments of the present application, the nut is disposed outside the inner bladder. The nut is arranged outside the inner container, so that a user can conveniently detach the inner container.

In some embodiments of the present application, the liner further comprises: and the annular surface component is connected with the cambered surface component to form a closed shell. Through the connection of the annular surface component and the cambered surface component, the individual requirements of customers on the shape and the size of the inner container can be met.

In some embodiments of the present application, the arc assembly, comprises: a first arc surface and a second arc surface; the toroidal surface assembly, comprising: a first annular face and a second annular face; the first cambered surface is connected with the first annular surface to form a first liner shell, the second cambered surface is connected with the second annular surface to form a second liner shell, and the first liner shell is connected with the second liner shell to form the shell.

The utility model also provides an electric water heater, which comprises a shell and the inner container assembly, wherein the inner container assembly is arranged in the shell, and a heat insulation layer is arranged between the inner container assembly and the shell.

Compared with the prior art, the utility model has the advantages and positive effects that: through setting up the inner bag to the closed housing who forms by the cambered surface subassembly centers on, simultaneously, through setting up the magnesium stick subassembly on the cambered surface subassembly, the shape and the whole size of inner bag can not be influenced to the magnesium stick subassembly, can realize reducing or cancel the straightway connection of flat inner bag, thereby reduce the thickness of inner bag, according to customer's individualized demand, with shape and the size of inner bag design for satisfying customer's demand, realize improving space utilization, improve the purpose of electric water heater's user experience nature.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a side view of one embodiment of the liner assembly of the present invention;

FIG. 2 is a front view of one embodiment of the liner assembly of the present invention;

FIG. 3 is a schematic view of the internal structure of an embodiment of the liner assembly of the present invention;

FIG. 4 is a schematic view of the internal structure of another embodiment of the liner assembly of the present invention;

FIG. 5 is a schematic structural view of an embodiment of a water tank for an electric water heater according to the present invention;

FIG. 6 is an exploded view of an embodiment of a water tank for an electric water heater according to the present invention;

FIG. 7 is a cross-sectional view of an embodiment of the electric water heater of the present invention;

FIG. 8 is an enlarged view of a portion of area A of FIG. 7;

FIG. 9 is an enlarged partial view of the area B in FIG. 7;

fig. 10 is a schematic structural diagram of a front panel in an embodiment of an electric water heater according to the present invention.

Description of reference numerals:

a housing 1;

the rear shell 11, a first screw hole 111, an installation platform 112, a second positioning groove 113, a step surface 114 and a blocking rib 115;

the lining plate 12, a first through hole 121, a first clamping portion 122, a second screw hole 123, a first guide sliding groove 124, a second guide sliding groove 125, a positioning rib 126 and an extending edge 127;

a card slot 1221, a first positioning slot 1222;

the front shell 13, the second clamping part 130, the front panel 131, the shell 132, the second through hole 133, the groove 134, the slot 135, the second tongue 136 and the extension part 137;

a pawl 1301, a first insertion tongue 1302;

a second mounting port 101, an annular shielding portion 102;

an inner container 2;

the concave structure 211, the linear extending part 212, the end surface 221 and the inserting part 222;

the flange connecting port 201, the connecting frame 202, the fixing hole 203, the cambered surface component 23, the first cambered surface 231, the second cambered surface 232, the annular surface component 24, the first annular surface 241 and the second annular surface 242;

a heating pipe assembly 3;

flange 31, heating tube 32;

a magnesium rod assembly 4;

a magnesium rod 41, a nut 42;

a hanger 100.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

The electric water heater adopts electric energy as a main energy material, and high-temperature heat generated after electrification directly heats water stored in the electric water heater so as to achieve the purpose of preparing hot water.

The electric water heater generally includes a water tank, an electric heating component, an electric control board and other components, wherein a water storage cavity is formed in the water tank to store water to be heated, the electric heating component is inserted into the water storage cavity formed in the water tank, and the electric control board is used for controlling the electric heating component to be powered on and powered off to operate, so that the water in the water tank is heated to a set temperature.

For a water tank of an electric water heater, the water tank generally comprises an outer shell and an inner container, and an insulating layer is formed between the outer shell and the inner container. Wherein, the shell is generally made of plastic materials to meet the design requirements of beautiful and diversified shapes; the inner container can be a metal container body or a plastic container body according to requirements.

In addition, the heat preservation layer formed between shell and the inner bag, commonly used heat preservation material have: asbestos, sponge, foamed plastic, polyurethane foam, etc., in the conventional technology, in order to obtain a good heat preservation effect, a heat preservation layer is usually formed in a foaming manner.

Wherein, for the inner bag that adopts the metal courage body, because influenced by water quality, the inside of inner bag corrodes easily, for this reason, still dispose the magnesium stick on the water tank, the magnesium stick inserts in the inside water storage cavity of water tank.

Magnesium is the lowest potential metal in the electrochemical series and is physiologically nontoxic. Therefore, the magnesium rod protective liner is very ideal. The size of the magnesium rod is directly related to the length of the time for protecting the inner container and the size of the protection effect, and the larger the magnesium rod is, the better the protection effect is and the longer the protection time is.

The water tank is also provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is used for conveying cold water to a water storage cavity formed in the water tank, and hot water in the water storage cavity is output from the water outlet pipe.

For the electric heating part, an electric heating mode such as an electric heating wire, magnetic energy or silicon tube heating can be adopted to heat the water stored in the water storage cavity.

The electric control board is used for receiving detection signals sent by related sensors (such as a water temperature sensor and a flow sensor) and controlling the electric heating component to be powered on and powered off.

When the electric water heater works, the electric control board controls the electric heating part to be electrified and heated, and when the water temperature of water in the water tank reaches a set value, the electric control board controls the electric heating part to be powered off.

The water tank for the electric water heater according to the embodiment of the utility model. It should be noted that the water tank according to the embodiment of the present invention may be installed on a wall extending in a vertical direction, or may be installed on a wall extending in a horizontal direction.

For convenience of description, the structure of the water tank will be described below by taking the case where the water tank is mounted on a vertical wall as an example.

In the first embodiment, as shown in fig. 1, 2, and 4, the present invention further provides a liner assembly for an electric water heater, wherein the liner 2 includes a curved surface assembly 23, and a closed shell is formed by the curved surface assembly 23; one end of the magnesium rod component 4 is connected to the cambered surface component 23 and is arranged in a closed shell formed by the cambered surface component 23.

Specifically, the arc assembly 23 includes a first arc surface 211 and a second arc surface 212. The first arc face 211 is welded to the edge of the second arc face 212, thereby forming a closed housing.

Specifically, the inner container 2 is of a flat structure as a whole, i.e., the thickness dimension is smaller than the length and height dimensions thereof. The first liner shell and the second liner shell are integrally of cambered surface structures, so that the design requirement of the pressure container is met, and the inner liner 2 has higher pressure resistance.

And for the magnesium rod assembly 4, the welding seam is installed on the first cambered surface 211 or the second cambered surface 212 and is far away from the welding seam of the first cambered surface 211 and the second cambered surface 212.

Therefore, a straight line segment does not need to be formed at the edge of the first cambered surface 211 or the second cambered surface 212 or the length of the straight line segment at the edge of the first cambered surface 211 or the second cambered surface 212 is reduced, and the overall thickness of the liner 2 is effectively reduced.

In the actual use process, the overall appearance of the inner container 2 is designed according to the needs, for example: the inner container 2 may be circular, oval, etc., without limitation.

In certain embodiments, depending on the shape requirements of the water heater for the liner 2 or the welding requirements for the edges of the first and second liner shells, the liner 2 may further include an annular surface assembly 24, the annular surface assembly 24 including a first annular surface 241 and a second annular surface 242.

First cambered surface 211 and first annular face 241 formula structure as an organic whole form first courage shell, and second cambered surface 232 and second annular face 242 formula structure as an organic whole form the second courage shell, and the marginal mutual welding of first courage shell and second courage shell is in the same place, forms the water storage cavity between two courage shells.

Considering that the holes on the first liner shell or the second liner shell are reduced as much as possible, and the risk of water leakage of the liner 2 increased by the holes is avoided, the magnesium rod assembly 4 can be arranged on the heating pipe assembly 3, so that the connection structure of the magnesium rod assembly 4 and the liner 2 does not need to be arranged separately, and the risk of water leakage is reduced.

The heating tube assembly 3 comprises a flange 31 and a heating tube 32, and the heating tube 32 is connected to the flange 31 and faces the inner side of the inner container 2. The magnesium rod assembly 4 is also attached to the flange 31.

The magnesium rod component 4 is arranged on the flange 31 of the heating pipe component 3, so that the integration of the magnesium rod component 4 and the heating pipe component 3 is realized, the connection points of the magnesium rod component 4, the heating pipe component 3, the first liner shell and the second liner shell are effectively reduced, and the water leakage risk of the liner 2 is greatly reduced; by connecting the magnesium rod assembly 4 to the first cambered surface 211 or the second cambered surface 212, the welding point connected to the edge of the first cambered surface 211 and the edge of the second cambered surface 212 are effectively avoided; meanwhile, as the magnesium rod assembly 4 is connected to the first arc surface 211 or the second arc surface 212, the liner 2 can be formed by directly welding the edges of the first arc surface 211 and the second arc surface 212, or the first annular surface 241 and the second annular surface 242 which are narrow can be arranged as required, and when the first annular surface 241 and the second annular surface 242 are designed, the installation position of the magnesium rod assembly 4 does not need to be considered, so that the volume of the smaller liner 2 is ensured.

In the second embodiment, based on the first embodiment, the specific structural form of the inner container 2 is the same as that in the first embodiment, and the inner container 2 is a flat structure as a whole.

As shown in fig. 1, 2, and 3, the magnesium rod assembly 4 is still disposed on the first arc surface 211 or the second arc surface 212.

Because the magnesium rod component 4 is a consumable, the magnesium rod component 4 is used for generating chemical reaction with the scale, so that the scale generated by heating in the water heater can not be formed into hard blocks to be wrapped on the heating pipe 32. With the service life of the water heater being prolonged, the magnesium rod is consumed. In the use process of the water heater, the using condition of the magnesium rod assembly 4 needs to be checked regularly, the condition of the magnesium rod assembly 4 is checked, and if the magnesium rod assembly 4 is not consumed, the surface of the magnesium rod assembly 4 is in a dimpled state and a large amount of floccules are generated, and the magnesium rod assembly can be used only by scraping metallic luster on the surface of the magnesium rod assembly 4 by using abrasive cloth or a sharp cutter. If the magnesium rod assembly 4 is consumed, it should be replaced in time, otherwise the surface of the heating tube 32 will be quickly surrounded by scale, resulting in increased heating rod temperature due to heat not being dissipated into the water, and shortened life. Therefore, the magnesium rod assembly needs to be periodically disassembled. In order to replace the magnesium rod component 4, the inner container 2 is not required to be disassembled, the magnesium rod component 4 can be replaced independently, and the magnesium rod component 4 is directly connected to the first cambered surface 211 or the second cambered surface 212.

The magnesium rod assembly 4 includes a magnesium rod 41 and a nut 42. A flange connecting port 201 is formed in the first arc surface 211 or the second arc surface 212, an internal thread is formed on the inner surface of the flange connecting port 201, an external thread is formed on the outer surface of the magnesium rod 41, and the magnesium rod 41 is detachably connected with the flange connecting port 201 through the connection of the internal thread and the external thread.

Specifically, in order to facilitate the detachment of the magnesium rod 41, a nut 42 is connected to one end of the magnesium rod 41, and the nut 42 is installed outside the first arc surface 211 and the second arc surface 212. When the user removes the magnesium rod assembly 4, the nut 42 can be rotated by a tool to remove and replace the magnesium rod 41.

In some embodiments, in order to improve the connection sealing performance, a sealing ring may be further disposed at the connection between the nut 42 and the first arc surface 211 or the second arc surface 212, and the sealing ring is compressed between the nut and the first arc surface 211 or the second arc surface 212. Thereby sealing the connection site.

The magnesium rod assembly 4 is directly connected to the first cambered surface 211 or the second cambered surface 212, the connection mode can adopt a detachable, sealed and waterproof threaded connection, a first mounting hole is formed in the first cambered surface 211 or the second cambered surface 212, an internal thread is arranged on the inner side of the first mounting hole, an external thread is arranged on the outer side of one end of the magnesium rod 41, and the connection between the magnesium rod 41 and the first cambered surface 211 or the second cambered surface 212 is realized by screwing the external thread at one end of the magnesium rod 41 into the internal thread; one end of the magnesium rod 41 is connected with the nut 42, the nut 42 is arranged on the outer side of the inner container 2, when the magnesium rod assembly 4 is disassembled, the nut 42 can be easily rotated by a tool, and therefore the magnesium rod assembly 4 can be disassembled for cleaning or replacement; by connecting the magnesium rod assembly 4 to the first cambered surface 211 or the second cambered surface 212, the welding point connected to the edge of the first cambered surface 211 and the edge of the second cambered surface 212 are effectively avoided; meanwhile, as the magnesium rod assembly 4 is connected to the first arc surface 211 or the second arc surface 212, the liner 2 can be formed by directly welding the edges of the first arc surface 211 and the second arc surface 212, or the first annular surface 241 and the second annular surface 242 which are narrow can be arranged as required, and when the first annular surface 241 and the second annular surface 242 are designed, the installation position of the magnesium rod assembly 4 does not need to be considered, so that the volume of the smaller liner 2 is ensured.

Based on the first and second embodiments, the embodiment of the present invention is directed to the flat liner 2, and the flat housing 1 is specially designed to have the following structural design.

In the third embodiment, as shown in fig. 5-10, the utility model further provides a heat preservation water tank for an electric water heater, the water tank adopts a flat design to reduce the indoor effective space occupied by the electric water heater, and the heat preservation water tank comprises a shell 1, an inner container 2 and an electric heating part 3 which are assembled together. The outer shell 1 and the inner container 2 are both of flat structures, and the outer shell 1, the inner container 2 and the electric heating part 3 are correspondingly improved in structure as follows.

A second mounting port 101 is provided on the front portion of the housing 1, and an annular shielding portion 102 is further provided on the inner wall of the housing 1, the annular shielding portion 102 being disposed around the second mounting port 101.

The front part of the inner container 2 is provided with a flange connecting port 201.

The inner container 2 is located in the housing 1, the annular shielding portion 102 surrounds the outer side of the flange connection port 201, an insulating layer (not shown) is arranged between the housing 1 and the inner container 2, and the electric heating element 3 is arranged on the flange connection port 201 and extends into the inner container 2.

Specifically, the whole water tank adopts the flattening design, and its thickness dimension is less than height and length dimension, in order to satisfy the installation requirement of electric heating element 3, simultaneously, also to satisfy later stage electric heating element 3, magnesium stick subassembly 4 maintenance requirement, then dispose second installing port 101 in the front portion of shell 1, corresponding, the front portion of inner bag 2 disposes flange connection mouth 201.

When the electric heating part 3 needs to be assembled, the electric heating part 3 can be inserted from the second mounting opening 101 and extend into the inner container 2 through the flange connection opening 201 to complete the assembly. Similarly, when the electric heating part 3 and the magnesium rod assembly 4 are replaced in later maintenance, the electric heating part 3 and the magnesium rod assembly 4 can be detached from the inner container 2 from the second mounting port 101 and can be conveniently taken out.

Meanwhile, for the water tank of a flat structure, the electric heating part 3 is installed at the front of the inner container 2 to firmly and reliably install the electric heating part 3 by sufficiently using the area of the front surface of the inner container 2.

More importantly, in order to reduce or avoid the foaming material from overflowing around the flange connecting port 201 of the inner container 2 during foaming, an annular shielding part 102 extending towards the flange connecting port 201 is formed on the inner wall of the housing 1, and the annular shielding part 102 is of a cylindrical structure and surrounds the periphery of the second mounting port 101. When the inner container 2 is installed in the housing 1, the annular shielding portion 102 surrounds the flange connection port 201, and an area for blocking the leakage of the foaming material is formed between the annular shielding portion 102 and the flange connection port 201.

A foaming cavity is formed between the outer shell 1 and the inner container 2, after foaming materials are injected into the foaming cavity, when the foaming materials flow to the flange connecting port 201, the foaming materials can be blocked by the annular blocking portion 102, and then leakage of the foaming materials from the flange connecting port 201 is reduced.

In some embodiments, to improve the anti-flash effect, the edge of the annular shield 102 rests against the outer wall of the liner 2.

Specifically, after the inner container 2 is installed in the housing 1, the edge of the annular shielding portion 102 will be attached to the outer wall of the inner container 2, so that the annular shielding portion 102 can better prevent the foaming material from leaking from the flange connection port 201 during the foaming process.

In the preferred embodiment, for ease of assembly, a gap is formed between the edge of the annular curtain portion 102 and the outer wall of the inner container 2. Further, in order to reduce leakage of the foaming material from the gap, a first flexible sealing portion (not shown) may be provided outside the annular shielding portion 102, and the first flexible sealing portion may shield the gap.

Specifically, during the assembly process, the first flexible sealing portion is wound around the exterior of the annular shielding portion 102 and extends out to the edge of the annular shielding portion 102. After the inner container 2 is installed in the housing 1, since the first flexible sealing portion is elastically deformable, the first flexible sealing portion will tightly abut against the outer wall of the inner container 2, so as to effectively seal the gap formed between the annular shielding portion 102 and the inner container 2 by the first flexible sealing portion.

Similarly, a second flexible sealing portion that covers the gap may be provided outside the flange connection port 201.

Specifically, in the assembling process, a second flexible sealing portion is firstly wound around the flange connection port 201 on the liner 2. After the inner container 2 is installed in the housing 1, since the second flexible sealing portion is elastically deformable, the annular shielding portion 102 presses on the second flexible sealing portion to effectively seal the gap formed between the annular shielding portion 102 and the inner container 2 by the second flexible sealing portion.

In the actual use process, for the concrete representation entity of the flexible sealing portion, collodion or a sealing gasket and other components can be adopted, which are not limited and described herein.

In another embodiment, in order to better block the foaming material flowing to the flange connection port 201 through the annular shielding portion 102, the outer diameter of the annular shielding portion 102 is gradually reduced along the direction from the second mounting port 101 to the flange connection port 201.

Specifically, the cross section of the annular shielding portion 102 is of a bell mouth structure, the size of a port of the annular shielding portion 102 opposite to the liner 2 is small, and the outer wall of the annular shielding portion 102 forms an inclined surface, so that on one hand, the small port is used for preventing the foaming material from overflowing, and on the other hand, the inclined outer wall is used for ensuring that the foaming material can flow along the inclined port so as to be uniformly distributed outside the liner 2.

In some embodiments, the position of the inner container 2 in the outer casing 1 is effectively positioned before foaming, so as to avoid the inner container 2 from shifting in the outer casing 1 during foaming. A connection bracket 202 is provided at the back of the inner container 2, and a screw hole (not labeled) is provided at the connection bracket 202. Correspondingly, the back of the shell 1 is provided with a hanging rack 100, and the hanging rack 100 is provided with a mounting hole (not marked); the bolts pass through the mounting holes and extend into the housing 1 to be screwed into the screw holes 451, and the connection frame 202 abuts against the inner wall of the housing 1.

Specifically, after the inner container 2 is installed in the housing 1, the inner container 2 is fixed to the housing 1 by the connecting frame 202, and at the same time, the connecting frame 202 is connected to the hanger 100 by bolts, and plays a role of installing the hanger 100.

In another embodiment, the second mounting opening 101 is formed at the front of the housing 1, and may be shielded by a front panel 131 disposed at the front of the housing 1 for the purpose of optimizing the appearance. The front panel 131 is fixed to the front of the housing 1 to shield the second mounting opening 101 during normal use, and the front panel 131 is removed when the electric heating part 3 needs to be repaired.

Through the anterior second installing port 101 of configuration at the shell in order to satisfy the installation of electric heating component and the requirement of later stage maintenance, simultaneously, the inside of shell still is formed with towards the inboard annular shielding part that extends around second installing port 101, annular shielding part surrounds the flange connector periphery at the inner bag, because the front surface of annular shielding part and inner bag is mutually supported, can play better anti-overflow material to the periphery of flange connector and handle, like this, in the foaming process, the foaming material flows into between shell and the inner bag after, the foaming material flows flange connector 201 department of inner bag and can be blockked by annular shielding part, with it is excessive to reduce the foaming material, and then improve the foaming quality, in order to improve product quality.

Based on the above first, second and third embodiments, the embodiment of the present invention also has the following structural design with respect to the housing 1.

In the fourth embodiment, as shown in fig. 8 to 10, for the second and third embodiments, the outer shell 1 is designed to be flat, and is designed to be an arc-shaped design as a whole, so as to achieve a good appearance design effect.

In order to achieve a front-view screwless design, the following design is used for the housing 1.

The housing 1 includes:

the rear shell 11, the edge of the rear shell 11 is provided with a first screw hole 111, and the back of the rear shell 11 forms a mounting surface;

the edge of the lining plate 12 is provided with a first through hole 121, the outer surface of the lining plate 12 is also provided with a first clamping part 122, a second mounting hole 101 is formed on the lining plate 12, and the inner wall of the lining plate 12 is provided with an annular shielding part 102;

a second clamping part 130 is arranged on the inner surface of the front shell 13;

wherein, the lining plate 12 is connected with the rear shell 11, the screw passes through the first through hole 121 and is screwed in the corresponding first screw hole 111, the lining plate 12 is covered by the front shell 13, and the first clamping portion 122 is connected with the corresponding second clamping portion 130.

The rear shell 11 and the lining plate 12 in the shell 1 are connected through screws, and a mounting cavity is formed between the rear shell 11 and the lining plate 12 so as to mount the liner through the mounting cavity. Connect fixedly through the screw between backshell 11 and the welt 12 for both directly have sufficient structural connection intensity, form the requirement of heat preservation to structural strength with the foaming between satisfying the later stage shell 1 and the inner bag.

For the connection process between the rear shell 11 and the liner plate 12, specifically: after the rear case 11 and the liner plate 12 are butted together such that the first through holes 121 are aligned with the corresponding first screw holes 111, screws are then inserted through the first through holes 121 and screwed into the first screw holes 111. Thus, the rear shell 11 and the lining plate 12 are firmly and reliably fastened and connected together through the screws.

In order to achieve the appearance effect without exposed screws, the front shell 13 is mounted on the liner 12 in a clamping manner. Specifically, after the rear case 11 and the lining plate 12 are fixedly connected together, since the first through hole 121 on the lining plate 12 can be seen from the front surface of the housing 1, in order to prevent the first through hole 121 and the screw from being exposed to the whole appearance, the first through hole 121 is shielded by the front case 13.

For the connection process between the front shell 13 and the liner plate 12, specifically: the second clamping portion 130 on the front shell 13 is clamped with the first clamping portion 122 at the corresponding position on the lining plate 12, so as to clamp the front shell 13 on the lining plate 12. Meanwhile, the first through hole 121 is shielded and processed through the front shell 13, so that the first through hole 121 cannot be seen outside the shell assembly, and the overall appearance effect that no screw is exposed is achieved. Moreover, due to the adoption of the clamping mode, the clamping connection part is shielded by the front shell 13, so that the appearance effect is optimized.

In some embodiments, the concrete entities for the first card portion 122 and the second card portion 130 may take various structural forms, which are illustrated below.

The second catching portion 130 includes a claw 1301, the first catching portion 122 includes a catching groove 1221, and the claw 1301 is caught in the catching groove 1221.

Specifically, when the front shell 13 is connected with the lining plate 12 in a clamping manner, the clamping claws 1301 are clamped into the clamping grooves 1221, and the clamping claws 1301 are matched with the clamping grooves 1221, so that the front shell 13 is connected with the lining plate 12.

In order to improve the connection strength, the second clamping portion 130 further includes a first insertion tongue 1302, the first clamping portion 122 further includes a first positioning groove 1222, and the first insertion tongue 1302 is inserted into the first positioning groove 1222.

Specifically, when assembling, the first tongue 1302 is inserted into the first positioning groove 1222 to pre-position the front shell 13 and the lining plate 12, and then the claw 1301 is clamped in the clamping groove 1221 to complete the assembly between the front shell 13 and the lining plate 12.

The opening directions of the first positioning groove 1222 and the card slot 1221 are arranged back to back. In this way, the connection portion formed by the latch and the latch slot 1221 and the connection portion formed by the first insertion tongue 1302 and the first positioning slot 1222 are matched with each other, so that the front shell 13 can be more firmly and reliably fixed on the outer wall of the lining board 12.

In another embodiment, since the pawl 1301 and the first insertion tongue 1302 are both located on the inner wall of the front shell 13, when assembled, the inner wall of the front shell 13 and the outer wall of the lining plate 12 are matched with each other, so that it is difficult for an operator to accurately insert the first insertion tongue 1302 into the positioning groove.

For this, a first guide sliding groove 124 and a second guide sliding groove 125 may be provided on an outer surface of the liner 12, the first guide sliding groove 124 extending to the catching groove 1221, and the second guide sliding groove 125 extending to the catching groove.

Specifically, during assembly, the operator may first place the pawl 1301 in the first guide chute 124, and simultaneously place the first insertion tongue 1302 in the second guide chute 125.

Then, the operator slides the front housing 13 along the first and second guide sliding grooves 124 and 125 to accurately insert the first insertion tongue 1302 into the first positioning groove 1222 and finally to clamp the pawl 1301 in the clamping groove 1221.

Under the guiding action of the first guide sliding groove 124 and the second guide sliding groove 125, the guide sliding grooves can cooperate with the first insertion tongue 1302 and the claw 1301 to guide the front shell 13 to slide.

Furthermore, at the initial stage of installation, the distance between the front shell 13 and the lining plate 12 can be relatively long, so that an operator can conveniently observe the positions of the claw 1301 and the first insertion tongue 1302, and further the claw 1301 and the first insertion tongue 1302 are accurately placed in the corresponding guide sliding grooves.

Then, during the sliding process along the guiding sliding groove, the distance between the front shell 13 and the lining plate 12 gradually decreases, and the operator relies on the guiding function of the guiding sliding groove to ensure that the first inserting tongue 1302 is inserted into the first positioning groove 1222 first.

Finally, the claws 1301 are caught in the catching grooves 1221 to firmly couple the front case 13 and the liner 12 together.

In other embodiments, in order to further improve the connection strength between the front shell 13 and the liner plate 12, the following structural improvement is made for the front shell 13.

The front case 13 includes:

a front panel 131;

a housing 132, wherein the housing 132 is provided with a second clamping portion 130, and the housing 132 is further provided with a second through hole 133;

the lining plate 12 is further provided with second screw holes 123, screws pass through the second through holes 133 and are screwed into the corresponding second screw holes 123, and the front panel 131 covers the second through holes 133 and is arranged on the front panel 131.

Specifically, for the front shell 13, which adopts a split design, the shell 132 is installed on the lining plate 12 as a main body through the second clamping portion 130 and the first clamping portion 122 in a matching manner. At the same time, the housing 132 and the backing plate 12 are further firmly connected together by screws. For the screws connecting the shell 132 and the lining plate 12, the front panel 131 shields the screws to meet the design requirement of the front surface of the shell 1 without the exposed screws.

In one embodiment, the housing 132 is provided with a groove 134, the second through hole 133 is located in the groove 134, and the front panel 131 is disposed in the groove 134.

Specifically, by providing the groove 134 on the front surface of the housing 132, the front panel 131 is placed by the groove 134, so that the front surface of the housing 1 is more flat. Meanwhile, as for the second through hole 133, the second through hole 133 is located in the groove 134, so that the second through hole 133 can be shielded by the front panel 131 after the front panel 131 is fitted into the groove 134.

In another embodiment, in order to achieve convenient and secure mounting of the front panel 131 on the housing 132, a slot 135 is further provided in the groove 134, and a second insertion tongue 136 is provided on the front panel 131, and is disposed in the corresponding slot 135.

Specifically, after the housing 132 is mounted on the liner 12, the front panel 131 is inserted into the corresponding slot 135 through the tongue configured thereon to complete the mounting. The tongue and the slot 135 are mutually matched, so that the front surface of the shell 1 realizes the appearance effect without exposed screws.

In order to further improve the connection reliability of the front panel 131, an extension portion 137 extending toward the liner 12 is provided on the front panel 131, a third screw hole (not shown) is provided on the extension portion 137, and a counter bore (not shown) is provided on the housing 132, through which a screw is screwed.

Specifically, in order to meet the requirement of the design, the extension 137 may be disposed at an upper or lower portion of the front panel 131 depending on the installation position of the housing 1. So as to form an extension 137 at the bottom of the front panel 131, correspondingly, a counter bore is provided at the bottom of the housing 132, and after the front panel 131 is matched with the slot 135 through the tongue to complete the clamping connection, the front panel is further connected and fixed from the bottom through a screw.

Preferably, a detachable plug (not shown) may be further disposed on the counter bore, and after the front panel 131 is fixed to the casing 132 by screws, the screw located in the counter bore is covered by the plug, so as to further satisfy the design that no screw is exposed from the front surface of the housing 1.

In some embodiments, in order to facilitate the operator to assemble the lining plate 12 and the rear shell 11 quickly on site, the inner wall of the rear shell 11 is provided with a mounting table 112, and the mounting table 112 is provided with the first threaded hole.

Specifically, during the assembly process, the mounting table 112 can support and position the lining plate 12, so as to facilitate the operator to quickly connect and assemble the lining plate 12 with the rear shell 11.

In another embodiment, in order to facilitate positioning of the assembled rear case 11 and the liner plate 12, a second positioning groove 113 may be provided on the mounting table 112, and an edge of the liner plate 12 is caught in the second positioning groove 113.

Specifically, during the process of assembling the rear shell 11 and the liner plate 12, the rear shell 11 and the liner plate 12 may be pre-assembled by inserting the edge of the liner plate 12 into the second positioning groove 113.

Then, the relative position between the rear case 11 and the liner plate 12 is adjusted so that the first through holes 121 are aligned with the first screw holes 111.

Finally, a screw is passed through the first through hole 121 and screwed into the first screw hole 111, so that the rear case 11 and the backing plate 12 are securely and reliably assembled together.

In order to accurately position the positional relationship between the rear case 11 and the liner 12, the assembly accuracy is improved. A step surface 114 may be provided on the inner wall of the rear case 11, and a positioning rib 126 may be provided on the outer wall of the liner 12, the positioning rib 126 abutting against the step surface 114.

Specifically, in the process of assembling the rear shell 11 and the liner plate 12, reference is made to the above-mentioned process of performing pre-positioning through the positioning groove, so that the rear shell 11 and the liner plate 12 are pre-assembled together. Meanwhile, after the edge of the lining plate 12 is inserted into the positioning groove, the positioning rib 126 on the lining plate 12 abuts against the step surface 114, so that the rear shell 11 and the lining plate 12 are accurately positioned, and the overall assembly quality of the shell assembly is improved.

In one embodiment, the edge of the rear shell 11 is further provided with a rib 115, the rib 115 is located outside the step surface 114, and the edge of the front shell 13 is provided with an extending edge 127, and the extending edge 127 surrounds the rib 115.

Specifically, the front shell 13 can cover the whole outer surface of the lining plate 12, and the front shell 13 can cover the whole lining plate 12 outside the lining plate 12, so that the visual effect of the appearance is optimized. Meanwhile, for the blocking rib 115 formed on the edge of the rear shell 11, on one hand, when the rear shell is assembled, the blocking rib 115 can be matched with the extension edge 127 for pre-positioning, so that the assembling efficiency and the assembling accuracy are improved; on the other hand, the rib 115 is shielded by the extending edge 127 formed on the edge of the front shell 13, which is more beneficial to improving the overall appearance effect.

In a preferred embodiment, for the butt-joint region between the front shell 13 and the rear shell 11, the edge of the front shell 13 is designed to be aligned with the edge of the rear shell 11, so as to reduce the size of the joint gap generated between the front shell 13 and the rear shell 11 at the butt-joint region.

In addition, the number of the connecting portions between the rear case 11 and the backing plate 12 and the number of the connecting portions between the front case 13 and the backing plate 12 are designed to correspond to the overall size of the housing assembly.

For example: a plurality of mounting platforms 112 may be provided at the edge of the rear case 11, and the plurality of mounting platforms 112 are distributed along the edge of the rear case 11.

Correspondingly, the backing plate 12 is provided with a number of first through holes 121 corresponding to the number of the mounting bases 112, so that the rear case 11 and the backing plate 12 are fixedly connected by a plurality of screws.

Similarly, the number of the clamping connection between the front shell 13 and the lining plate 12 is also plural, and is not limited herein.

Through adopting the welt with will preceding shell and backshell indirect linking together, through the inseparable linking together of screw between welt and the backshell to satisfy the overall structure intensity requirement of shell, and preceding shell passes through the mode and the welt of joint and is connected, preceding shell will cover the welt and then shelter from the screw, makes the whole effect of shell realize no exposed outward appearance of screw, has optimized the whole outward appearance of shell, in order to improve user experience nature.

In the description of the present specification, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. A liner assembly, comprising:

the liner comprises an arc surface component, and the arc surface component forms a closed shell;

the magnesium rod component comprises a magnesium rod and a magnesium rod,

wherein, the magnesium rod assembly is arranged on the cambered surface assembly.

2. The liner assembly of claim 1,

further comprising: heating pipe subassembly, heating pipe subassembly sets up on the cambered surface subassembly, heating pipe subassembly includes:

a flange is arranged on the outer side of the flange,

a heating pipe disposed on the flange;

the magnesium rod assembly is arranged on the flange;

and a flange connector is formed on the cambered surface component, and the flange is connected with the flange connector.

3. The liner assembly of claim 1, wherein the arc assembly is provided with a first mounting opening, and the magnesium rod assembly is mounted in the liner through the first mounting opening.

4. The liner assembly of claim 3, wherein the magnesium rod assembly comprises a magnesium rod having an external thread formed at one end thereof, wherein the first mounting port is provided with an internal thread, and wherein the magnesium rod has one end thereof threaded therein.

5. The liner assembly of claim 4, further comprising a nut disposed at one end of the magnesium rod.

6. The liner assembly of claim 5, further comprising a seal ring compressed between the nut and the arc assembly.

7. The liner assembly of claim 6, wherein the nut is disposed outside of the liner.

8. The liner assembly of claim 1, further comprising: and the annular surface component is connected with the cambered surface component to form a closed shell.

9. The liner assembly of claim 8,

the cambered surface subassembly, it includes: a first arc surface and a second arc surface;

the toroidal surface assembly, comprising: a first annular face and a second annular face;

the first cambered surface is connected with the first annular surface to form a first liner shell, the second cambered surface is connected with the second annular surface to form a second liner shell, and the first liner shell is connected with the second liner shell to form the shell.

10. An electric water heater, comprising a shell, characterized in that, further comprising an inner container component as claimed in any one of claims 1-9, the inner container component is arranged in the shell, and a heat insulation layer is arranged between the inner container component and the shell.

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