An ultra-thin electric water heater

Abstract

An ultra-thin electric water heater includes: a shell, a heating inner tank, a pipe seat, a positioning plate, and a circuit board; the shell has an external water inlet; the shell has an inner cavity, the heating inner tank is located in the inner cavity, and a portion of the outer side wall of the heating inner tank is connected to or close to the inner side wall of the inner cavity; the lower side of the pipe seat is installed on the bottom wall of the inner cavity, and the upper side of the pipe seat is installed on the bottom wall of the heating inner cavity; the interior of the heating inner tank, the pipe seat, and the external water inlet are sequentially connected; the pipe seat separates the outer side wall of the heating inner tank from the bottom wall of the inner cavity, forming a receiving gap at the separation position; the positioning plate is installed at the opening of the inner cavity and is located at one horizontal end of the inner cavity; the positioning plate has a plate groove, the inner contour of which transitions from one horizontal end of the inner cavity to the bottom wall of the inner cavity, and the circuit board is installed in the plate groove. This solution makes the water heater body ultra-thin, solving the problem that existing water heaters cannot fully utilize the internal dimensions of the shell with the same inner tank capacity, thus preventing the minimization of the body size.

Description

Technical Field

[0001] This utility model relates to the field of water heaters, and in particular to an ultra-thin electric water heater. Background Technology

[0002] A storage-type electric water heater is a stationary appliance that heats water. It can store hot water long-term or temporarily and is equipped with a device to control or limit the water temperature. Storage-type electric water heaters are commonly used in households because they are easy to install and inexpensive, but they require a relatively long heating time to reach a certain temperature before use. The existing structure of electric water heaters requires the inner tank, heating element, and thermostat to be installed inside the outer casing, while the control circuit board and various cables are arranged in the space outside the inner tank. Therefore, when the inner tank capacity increases, a larger and longer outer casing must be used to ensure the space required for circuit board installation and cable routing. This requirement directly leads to a longer overall length and higher space occupancy, thus increasing the space requirements for installation in the bathroom. Utility Model Content

[0003] The purpose of this utility model is to propose an ultra-thin electric water heater, in which the pipe seat is located between the outer shell and the heating inner tank, and the space of the pipe seat in the inner cavity is reasonably utilized to form an accommodating gap between the outer shell and the heating inner tank. The positioning plate has a plate groove for installing the circuit board in the accommodating gap, which can reduce the gap between the outer shell and the heating inner tank, thereby reducing the overall size of the outer shell and making the water heater body ultra-thin.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] An ultra-thin electric water heater includes: a shell, a heating inner tank, a pipe socket, a positioning plate, and a circuit board;

[0006] The outer shell is provided with an external water outlet; the outer shell is provided with an inner cavity, and the heating inner liner is disposed in the inner cavity, with a portion of the outer side wall of the heating inner liner connected to or close to the inner side wall of the inner cavity; the lower side of the pipe seat is installed on the bottom wall of the inner cavity, and the upper side of the pipe seat is installed on the bottom wall of the heating inner cavity; the interior of the heating inner liner, the pipe seat, and the external water outlet are sequentially connected; the pipe seat separates the outer side wall of the heating inner liner from the bottom wall of the inner cavity, and forms a receiving gap at the separation position;

[0007] The positioning plate is installed at the opening of the inner cavity and is located at one horizontal end of the inner cavity; the positioning plate is provided with a plate groove, the inner contour of which transitions from one horizontal end of the inner cavity to the bottom wall of the inner cavity, and the circuit board is installed in the plate groove.

[0008] Alternatively, the plate groove may be provided with a horizontal slot at the receiving gap, the horizontal slot extending horizontally to near the tube seat.

[0009] Optimally, the horizontal groove is provided with a cable outlet; the tube seat is located in the middle of the inner cavity, and the accommodating gap is located on the left and right sides of the tube seat, wherein the accommodating gap on one side is provided with the horizontal groove, and the accommodating gap on the other side is connected to the horizontal groove through the cable outlet.

[0010] Optimally, it may also include: a sub-plate;

[0011] The sub-plate is fixed in the accommodating gap on one side, and the horizontal slot is provided in the accommodating gap on the other side; part of the circuit board is horizontally installed on the sub-plate, and part of the circuit board is installed in the plate groove, and the two circuit boards are electrically connected by built-in wires; the built-in wires are distributed on the outer periphery of the tube seat and pass through the outlet.

[0012] Optimally, the heating component of the heating liner is fixed in the middle of the positioning plate, and the heating component is electrically connected to the circuit board in the groove of the plate through an external wire; the positioning plate is provided with a wiring groove, and the external wire is distributed along the wiring groove.

[0013] Optimally, the plate groove has a transition groove at the outer edge of the heating assembly, and the transition groove is connected to the horizontal sub-groove; the transition groove has a fixed inclined wall, and the fixed inclined wall is inclined toward the horizontal sub-groove; the circuit board is fixed to the fixed inclined wall, so that the circuit board is inclined and fixed in the plate groove.

[0014] Optimally, it may also include: a cover plate;

[0015] The openings of the inner cavity are located at the left and right ends of the outer shell, and each is fitted with a cover plate, which seals and covers the inner cavity.

[0016] Optimally, the outer contour of the heating inner liner is provided with a pair of arc surfaces; the two arc surfaces form a wiring channel between them and the inner wall of the adjacent inner cavity, and the wiring channel passes through the openings at both ends of the inner cavity.

[0017] Optimally, it may also include: a power cord;

[0018] The power cord is electrically connected to the heating inner liner, and the power cord is located in the wiring channel.

[0019] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0020] This solution provides an ultra-thin electric water heater, in which the pipe seat is located between the outer shell and the heating inner tank, and the space of the pipe seat in the inner cavity is reasonably utilized to form an accommodating gap between the outer shell and the heating inner tank. The positioning plate has a plate groove in the accommodating gap for mounting the circuit board, which can reduce the gap between the outer shell and the heating inner tank, thereby reducing the overall size of the outer shell and making the water heater body ultra-thin. This solves the problem that existing water heaters are unable to fully utilize the internal size of the outer shell under the same inner tank capacity, thus preventing the minimization of the body size. Attached Figure Description

[0021] Figure 1 This is an exploded structural diagram of one embodiment of an ultra-thin electric water heater;

[0022] Figure 2 This is a cross-sectional structural diagram of one embodiment of an ultra-thin electric water heater;

[0023] Figure 3 This is a schematic diagram of one embodiment of a heated inner liner installed on an outer shell;

[0024] Figure 4 This is a cross-sectional structural diagram of one embodiment of the connection position between the outer shell, the heating inner liner, and the tube seat.

[0025] in:

[0026] 1. Outer shell; 2. Heating inner liner; 3. Tube seat; 4. Positioning plate; 5. Circuit board; 6. Sub-board; 7. Cover plate; 8. Power cord;

[0027] 11. Outer water inlet; 12. Inner cavity; 13. Accommodation gap;

[0028] Heating component 21; Arc-shaped surface 22; Wiring channel 23

[0029] Plate groove 41; horizontal groove 411; cable outlet 412; transition groove 413; cable routing groove 414; fixed inclined wall 415; built-in wire 51. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0032] like Figure 1-4 An ultra-thin electric water heater includes: an outer shell 1, a heating inner tank 2, a pipe seat 3, a positioning plate 4, and a circuit board 5;

[0033] The outer shell 1 is provided with an outer water outlet 11; the outer shell 1 is provided with an inner cavity 12, the heating inner liner 2 is disposed in the inner cavity 12, and part of the outer side wall of the heating inner liner 2 is connected to or close to the inner side wall of the inner cavity 12; the lower side of the tube seat 3 is installed on the bottom wall of the inner cavity 12, and the upper side of the tube seat 3 is installed on the bottom wall of the heating inner cavity 12; the interior of the heating inner liner 2, the tube seat 3 and the outer water outlet 11 are sequentially connected; the tube seat 3 separates the outer side wall of the heating inner liner 2 from the bottom wall of the inner cavity 12, and forms a receiving gap 13 at the separation position;

[0034] The positioning plate 4 is installed at the opening of the inner cavity 12 and is located at the horizontal end of the inner cavity 12; the positioning plate 4 is provided with a plate groove 41, the inner contour of the plate groove 41 transitions from the horizontal end of the inner cavity 12 to the bottom wall of the inner cavity 12, and the circuit board 5 is installed in the plate groove 41.

[0035] This solution provides an ultra-thin electric water heater, in which the pipe seat 3 is located between the outer shell 1 and the heating inner tank 2, and the space of the pipe seat 3 in the inner cavity 12 is reasonably utilized to form an accommodating gap 13 between the outer shell 1 and the heating inner tank 2. The positioning plate 4 has a plate groove 41 for installing the circuit board 5 in the accommodating gap 13, which can reduce the gap between the outer shell 1 and the heating inner tank 2, thereby reducing the overall size of the outer shell 1 and making the water heater body ultra-thin. This solves the problem that existing water heaters are unable to fully utilize the internal size of the outer shell under the same inner tank capacity, thus making it impossible to minimize the body size.

[0036] Specifically, the outer shell 1 has an inner cavity 12, and a heating inner liner 2 is fixed in the inner cavity 12. The outer side wall of the heating inner liner 2 is close to the inner side wall of the inner cavity 12, and the heating inner liner 2 occupies most of the space in the inner cavity 12. The inner cavity 12 has a pipe seat 3 in its bottom wall. The lower side of the pipe seat 3 is connected to the bottom wall of the inner cavity 12, and the upper side of the pipe seat 3 is connected to the bottom wall of the heating inner liner 2. The outer shell 1 has an external water outlet 11 for water supply, drainage, and / or sewage discharge. Generally, a pipe is installed on the pipe seat 3, and the interior of the heating inner liner 2, the pipe seat 3, and the external water outlet 11 are connected sequentially through the pipe. In this regard, the pipe seat 3 connects the bottom wall of the inner cavity 12 to the heating inner liner. The bottom wall of the inner cavity 12 is separated from the bottom wall of the heating inner tank 2, thus forming a receiving gap 13 between the bottom wall of the inner cavity 12 and the bottom wall of the heating inner tank 2; the positioning plate 4 is installed at the opening at the horizontal end of the inner cavity 12, and the positioning plate 4 is provided with a plate groove 41; the inner contour of the plate groove 41 occupies the opening area of ​​the inner cavity 12 and extends to the receiving gap 13, thereby utilizing the space of the tube seat 3 at the end of the inner cavity 12 and the space of the receiving gap 13; the plate groove 41 is used to fix the circuit board 5, which is a conventional structure of water heaters, mainly used for power conversion and distribution, temperature detection and control, control of heating tube operation and safety protection, etc. The circuit board 5 can be distributed at the opening at the horizontal end of the inner cavity 12 or in the receiving gap 13. The outer shell 1 is close to or connected to the heating inner tank 2 in other positions outside the receiving gap 13, thereby saving space between the outer shell 1 and the heating inner tank 2. Based on the heating inner tank 2 of the same capacity, the size of the outer shell 1 can be designed to be smaller. Therefore, the body of the ultra-thin electric water heater of this solution is smaller than that of existing water heaters.

[0037] Alternatively, the plate groove 41 may be provided with a horizontal groove 411 at the receiving gap 13, and the horizontal groove 411 extends horizontally to near the tube seat 3.

[0038] The horizontal slot 411 faces the pipe seat 3, which can make full use of the horizontal space of the accommodating gap 13; the horizontal slot 411 has a storage function and can be used to place water heater accessories with a size smaller than the accommodating gap 13, such as circuit boards, built-in wires 51, etc.

[0039] Optimally, the horizontal groove 411 is provided with a cable outlet 412; the tube seat 3 is located in the middle of the inner cavity 12, and the accommodating gap 13 is located on the left and right sides of the tube seat 3, wherein the accommodating gap 13 on one side is provided with the horizontal groove 411, and the accommodating gap 13 on the other side is connected to the horizontal groove 411 through the cable outlet 412.

[0040] The tube seat 3 is located in the middle of the inner cavity 12, thus forming receiving gaps 13 on both the left and right sides of the tube seat 3. This design can fully utilize the receiving gaps 13 on both sides for placing items. At the same time, since the outer wall of the heating inner tank 2 is separated from the bottom wall of the inner cavity 12, and the tube seat 3 is hollowed out around its perimeter, the receiving gaps 13 on both sides can be connected. The horizontal groove 411 of one receiving gap 13 has a cable outlet 412, and the receiving gap 13 on the other side can be used to accommodate water heater accessories. The water heater accessories in the receiving gap 13 can be connected to the circuit board 5 of the horizontal groove 411 through an internal wire 51, which passes through the cable outlet 412. In this way, the receiving gaps 13 on both sides can significantly improve the storage capacity of the ultra-thin electric water heater.

[0041] Optimally, it also includes: sub-plate 6;

[0042] The sub-plate 6 is fixed in the accommodating gap 13 on one side, and the horizontal slot 411 is provided in the accommodating gap 13 on the other side; part of the circuit board 5 is horizontally installed on the sub-plate 6, and part of the circuit board 5 is installed in the board groove 41. The two circuit boards 5 are electrically connected by built-in wires 51; the built-in wires 51 are distributed on the outer periphery of the tube seat 3 and pass through the outlet 412.

[0043] In one embodiment, the circuit board 5 of this solution can preferably be set in the inner cavity 12 in a split form; the sub-board 6 is fixed to one of the receiving gaps 13, and can be fixed to the bottom wall of the inner cavity 12 or the side wall of the tube seat 3; one circuit board 5 is set in the sub-board 6, and the other is set in the plate groove 41. The two circuit boards 5 are connected by an internal wire 51, which is distributed along the bottom wall of the inner cavity 12; in this way, the ultra-thin electric water heater retains the ultra-thin feature while maintaining as many functional modules as possible of the existing circuit board 5 with the split circuit board 5.

[0044] Alternatively, the heating component 21 of the heating inner liner 2 is fixed to the middle of the positioning plate 4, and the heating component 21 is electrically connected to the circuit board 5 of the plate groove 41 via an external wire; the positioning plate 4 is provided with a wiring groove 414, and the external wire is distributed along the wiring groove 414.

[0045] The circuit board 5 in the groove 41 is used to electrically connect the heating component 21 of the inner tank 2. The heating component 21 is a conventional structure of the inner tank 2 in a water heater. The heating component 21 mainly includes a heating rod or heating tube, which can convert electrical energy into heat energy. The heating component 21 of the inner tank 2 is fixed in the middle of the positioning plate 4. The heating component 21 is directly connected to the circuit board 5 in the groove 41 by an external wire (not shown). The distance between the heating component 21 and the circuit board 5 in the wiring groove 414 is the shortest, which is convenient for wiring. At the same time, the positioning plate 4 is provided with a wiring groove 414, which can be used to arrange external wires, making the distribution of external wires more regular.

[0046] Optimally, the plate groove 41 is provided with a transition groove 413 at the outer edge of the heating assembly 21, and the transition groove 413 is connected to the horizontal sub-groove 411; the transition groove 413 is provided with a fixed inclined wall 415, and the fixed inclined wall 415 is inclined toward the horizontal sub-groove 411; the circuit board 5 is fixed to the fixed inclined wall 415, so that the circuit board 5 is inclined and fixed to the plate groove 41.

[0047] The transition groove 413 is located at the outer edge of the heating component 21. The outer wall of the transition groove 413 can be close to the outer edge of the heating component 21, so the gap between the transition groove 413 and the heating component 21 is small, making full use of the space on the positioning plate 4. At the same time, the transition groove 413 is provided with a fixed inclined wall 415. The circuit board 5 is fixed to the fixed inclined wall 415 in a known way, such as screw fixing, snap fixing, magnetic fixing, etc. When the circuit board 5 is fixed at an angle to the fixed inclined wall 415, it is equivalent to the circuit board 5 occupying the horizontal end space of the inner cavity 12 and also occupying the space of the accommodating gap 13. A larger circuit board 5 can be fixed in the limited space of the ultra-thin electric water heater.

[0048] Optimally, it also includes: cover plate 7;

[0049] The openings of the inner cavity 12 are located at the left and right ends of the outer shell 1, and the cover plates 7 are installed on them respectively, and the cover plates 7 seal and cover the inner cavity 12.

[0050] In this design, cover plates 7 are installed at the openings at both ends of the inner cavity 12 to seal and cover the inner cavity 12, thereby protecting the structure of the inner cavity 12 and improving its aesthetics. For the positioning plate 4 on one side of the inner cavity 12, the cover plate 7 covers the surface of the positioning plate 4. When it is necessary to inspect the heating inner liner 2 and circuit board 5 of the positioning plate 4, the cover plate 7 on one side can be opened to directly inspect the side of the outer shell 1.

[0051] Optimally, the outer contour of the heating inner liner 2 is provided with a pair of arc surfaces 22; the two arc surfaces 22 form a wiring channel 23 between them and the inner sidewall of the adjacent inner cavity 12, and the wiring channel 23 passes through the openings at both ends of the inner cavity 12.

[0052] In addition to optimizing the structure of the positioning plate 4, this solution also optimizes the shape of the heating inner tank 2. Generally, the outer contour of the heating inner tank 2 is a columnar structure, that is, it only has one arc surface 22. However, this solution designs the traditional columnar structure into two adjacent columnar structures, forming a pair of arc surfaces 22. Although the overall water storage volume is slightly reduced, a gap is formed between the two arc surfaces 22. This gap forms a wiring channel 23 between the inner walls of the adjacent inner cavities 12. The wiring channel 23 runs through the openings at both ends of the inner cavity 12. The wiring channel 23 can be used to pass through accessories such as wires to open up both ends of the inner cavity 12 and improve the flexibility of accessory arrangement.

[0053] Optimally, it also includes: a power cord 8;

[0054] The power cord 8 is electrically connected to the heating inner liner 2, and the power cord 8 is located in the wiring channel 23.

[0055] The power cord 8 is electrically connected to the heating inner tank 2. In some households, the socket may be located on the side of the ultra-thin electric water heater away from the positioning plate 4. In this embodiment, the power cord 8 can be passed through the wiring channel 23, so that the ultra-thin electric water heater can use sockets in the left and right positions, which improves the installation flexibility of the ultra-thin electric water heater.

[0056] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An ultra-thin electric water heater, characterized in that, include: Outer shell, heating inner liner, tube socket, positioning plate, and circuit board; The outer shell is provided with an external water outlet; the outer shell is provided with an inner cavity, and the heating inner liner is disposed in the inner cavity, with a portion of the outer side wall of the heating inner liner connected to or close to the inner side wall of the inner cavity; the lower side of the pipe seat is installed on the bottom wall of the inner cavity, and the upper side of the pipe seat is installed on the bottom wall of the heating inner cavity; the interior of the heating inner liner, the pipe seat, and the external water outlet are sequentially connected; the pipe seat separates the outer side wall of the heating inner liner from the bottom wall of the inner cavity, and forms a receiving gap at the separation position; The positioning plate is installed at the opening of the inner cavity and is located at one horizontal end of the inner cavity; the positioning plate is provided with a plate groove, the inner contour of which transitions from one horizontal end of the inner cavity to the bottom wall of the inner cavity, and the circuit board is installed in the plate groove.

2. The ultra-thin electric water heater according to claim 1, characterized in that, The plate groove has a horizontal groove at the receiving gap, and the horizontal groove extends horizontally to near the tube seat.

3. The ultra-thin electric water heater according to claim 2, characterized in that, The horizontal groove is provided with a cable outlet; the tube seat is located in the middle of the inner cavity, and the accommodating gap is located on the left and right sides of the tube seat. The accommodating gap on one side is provided with the horizontal groove, and the accommodating gap on the other side is connected to the horizontal groove through the cable outlet.

4. The ultra-thin electric water heater according to claim 3, characterized in that, Also includes: Vice board; The sub-plate is fixed in the accommodating gap on one side, and the horizontal slot is provided in the accommodating gap on the other side; part of the circuit board is horizontally installed on the sub-plate, and part of the circuit board is installed in the plate groove, and the two circuit boards are electrically connected by built-in wires; the built-in wires are distributed on the outer periphery of the tube seat and pass through the outlet.

5. The ultra-thin electric water heater according to claim 4, characterized in that, The heating component of the heating inner liner is fixed in the middle of the positioning plate. The heating component is electrically connected to the circuit board in the groove of the plate through an external wire. The positioning plate is provided with a wiring groove, and the external wire is distributed along the wiring groove.

6. The ultra-thin electric water heater according to claim 5, characterized in that, The plate groove has a transition groove at the outer edge of the heating component, and the transition groove is connected to the horizontal sub-groove; the transition groove has a fixed inclined wall, and the fixed inclined wall is inclined toward the horizontal sub-groove; the circuit board is fixed to the fixed inclined wall, so that the circuit board is inclined and fixed in the plate groove.

7. The ultra-thin electric water heater according to claim 5, characterized in that, Also includes: Cover plate; The openings of the inner cavity are located at the left and right ends of the outer shell, and each is fitted with a cover plate, which seals and covers the inner cavity.

8. An ultra-thin electric water heater according to any one of claims 1-7, characterized in that, The outer contour of the heating inner liner is provided with a pair of arc surfaces; the two arc surfaces and the inner sidewall of the adjacent inner cavity form a wiring channel, which passes through the openings at both ends of the inner cavity.

9. An ultra-thin electric water heater according to claim 8, characterized in that, Also includes: Power cord; The power cord is electrically connected to the heating inner liner, and the power cord is located in the wiring channel.

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