Horizontal water heater

Abstract

The utility model discloses a horizontal water heater, the inside of shell forms installation cavity, installation lining board is arranged in the installation cavity, and installation lining board divides installation cavity into first cavity and second cavity, and first cavity forms electrical equipment room, and the electrical equipment room is provided with electric control board, and electric control board is connected temperature controller, and the inner bag is horizontally arranged in the second cavity, and the electric heating pipe is arranged in the inner bag, and the knob is connected with temperature controller, and the knob is located in the left side wall or right side wall of shell. The case through the knob side, and the knob of side will not cause the height increase of horizontal water heater, and the installation of horizontal water heater is convenient in the kitchen space of limited height, and it is convenient for user operation.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a horizontal water heater. Background Technology

[0002] A horizontal water heater, such as a horizontal mini water heater, consists of a water tank, an electric heating element, and an electronic control board. The water tank has a storage cavity to hold water to be heated. The electric heating element is inserted into this cavity. The electronic control board controls the on / off operation of the heating element to heat the water in the tank to the set temperature. The water tank typically consists of an outer shell and an inner tank, with an insulation layer between them.

[0003] There is a type of horizontal mini water heater with a control board connected to a thermostat. The knob for adjusting the thermostat is located on the top of the casing. The protruding knob increases the height of the horizontal mini water heater, making it inconvenient to install in the limited space under the sink. The top-mounted knob also makes it inconvenient for users to operate and observe the temperature indicator on the knob.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] In response to the problems pointed out in the background art, this utility model proposes a horizontal water heater with a side-mounted knob. The side-mounted knob does not increase the height of the horizontal water heater, which facilitates the installation of the horizontal water heater in the limited height of the under-sink space and makes it easy for users to operate.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0007] This utility model provides a horizontal water heater, comprising:

[0008] The outer casing has an internal mounting cavity.

[0009] A mounting liner is disposed within the mounting cavity, dividing the mounting cavity into a first cavity and a second cavity. The first cavity forms an electrical compartment, in which an electrical control board is disposed, and the electrical control board is connected to a temperature controller.

[0010] The inner liner is positioned horizontally within the second cavity;

[0011] An electric heating element is installed in the inner liner;

[0012] A knob, connected to the thermostat, is located on the left or right side wall of the housing.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are:

[0014] By placing the knob on its side, rotating it will not increase the height of the horizontal water heater, making it easier to install in under-sink spaces with limited height, and also making it easier for users to operate.

[0015] The mounting cavity is divided into a first cavity and a second cavity using mounting plates, thus enabling independent installation of the inner liner and the electrical control board. The electrical compartment is located at the front, allowing maintenance personnel to easily open the front panel to expose the electrical control board and other electrical components inside.

[0016] Typically, cabinets have limited height but sufficient depth. Therefore, this design uses a horizontal installation of the inner liner, which helps reduce the height of the outer shell while ensuring the volume of the inner liner, making it easier to install a horizontal water heater in a cabinet with limited height.

[0017] In some embodiments of this application, the outer casing further includes a front sidewall, and a protruding structure is provided at the arcuate junction of one of the left sidewall and the right sidewall with the front sidewall. The protruding structure has a plane, and the knob is disposed on the plane.

[0018] In some embodiments of this application, the electrical compartment is located at the front end of the horizontal water heater;

[0019] The horizontal water heater also includes an inlet pipe and an outlet pipe, with the inlet end of the inlet pipe and the outlet end of the outlet pipe extending laterally from the rear end of the horizontal water heater.

[0020] In some embodiments of this application, the second cavity is provided with opposing foamed support members, the inner liner is located between the two foamed support members, the sidewall of the foamed support member is formed with a concave surface, and the concave surface is adapted to the end contour of the inner liner.

[0021] In some embodiments of this application, the two foamed support members are divided into a first foamed member and a second foamed member, the first foamed member being attached to the mounting liner, and the second foamed member being disposed near the rear end of the housing.

[0022] In some embodiments of this application, the outer shell includes a base plate and an upper cover, and the mounting cavity is formed between the base plate and the upper cover. A first baffle is provided on the base plate, and a slot is provided at the lower part of the mounting liner, and the first baffle is engaged in the slot.

[0023] In some embodiments of this application, the top of the upper cover is provided with a positioning baffle, and the top of the mounting liner overlaps the positioning baffle.

[0024] In some embodiments of this application, the mounting liner is provided with an auxiliary opening, the first foaming component is provided with a first mounting port, the flange of the inner liner passes through the first mounting port and the auxiliary opening, and the first foaming component is sandwiched between the mounting liner and the inner liner.

[0025] In some embodiments of this application, the horizontal water heater further includes an inlet pipe and an outlet pipe; the second foaming member is provided with a second mounting port and a third mounting port, the second mounting port is arranged above the third mounting port, the outlet pipe passes through the second mounting port, and the inlet pipe passes through the third mounting port.

[0026] In some embodiments of this application, a wiring groove is provided at the bottom of the housing, and the wiring groove extends from front to back to the rear side of the housing.

[0027] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is one of the structural schematic diagrams of an embodiment of the horizontal water heater of this application;

[0030] Figure 2 This is a second structural schematic diagram of an embodiment of a horizontal water heater of this application;

[0031] Figure 3 This is a cross-sectional view of an embodiment of the horizontal kitchen water heater of this application;

[0032] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle;

[0033] Figure 5 for Figure 3 A magnified view of a portion of region B in the middle;

[0034] Figure 6 for Figure 1 Exploded view of a horizontal kitchen water heater;

[0035] Figure 7 for Figure 6 Schematic diagram of the midsole plate;

[0036] Figure 8for Figure 6 Schematic diagram of the upper and middle cover structure;

[0037] Figure 9 for Figure 6 Schematic diagram of the inner liner

[0038] Figure 10 for Figure 6 A cross-sectional view of the assembly of the inner liner, inlet and outlet pipes, and electric heating element;

[0039] Figure 11 for Figure 10 Schematic diagram of the structure of the inner and outer liner tubes;

[0040] Figure 12 This is the third structural schematic diagram of an embodiment of the horizontal water heater of this application;

[0041] Figure 13 for Figure 12 C-axis sectional view;

[0042] Figure 14 This is a schematic diagram of the structure of an embodiment of the horizontal kitchen water heater of this application in a maintenance state;

[0043] Figure 15 This is a schematic diagram of another embodiment of the horizontal water heater of this application;

[0044] Figure 16 This is a second structural schematic diagram of yet another embodiment of the horizontal water heater of this application;

[0045] Figure 17 for Figure 15 A schematic diagram of a midsole plate structure;

[0046] Figure 18 for Figure 15 One of the structural diagrams of the upper and middle cover;

[0047] Figure 19 for Figure 15 The second schematic diagram of the upper and middle cover structure. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] It should be noted that in the description of this application, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0053] A horizontal kitchen water heater uses electricity as its main energy source. The high-temperature heat generated after being powered on directly heats the water stored in the horizontal kitchen water heater to produce hot water.

[0054] A horizontal kitchen water heater typically consists of a water tank, an electric heating element, and an electronic control board. The water tank has a water storage cavity to store water to be heated. The electric heating element is inserted into the water storage cavity. The electronic control board is used to control the on / off operation of the electric heating element so that the water in the tank is heated to the set temperature.

[0055] For horizontal kitchen water heaters, the water tank generally consists of an outer shell and an inner liner, with an insulation layer between them. The outer shell is usually made of plastic to meet the requirements of aesthetic and diverse designs; the inner liner can be made of metal or plastic, depending on the needs.

[0056] In addition, the insulation layer formed between the outer shell and the inner liner is commonly made of materials such as asbestos, sponge, foam plastic, and polyurethane foam. In conventional technology, foaming is usually used to form the insulation layer in order to achieve good insulation effect.

[0057] For water tanks with metal inner liner, corrosion can easily occur inside due to water quality. Therefore, magnesium rods are installed on the water tank and inserted into the water storage cavity inside the tank.

[0058] Magnesium has the lowest electrochemical potential among metals and is physiologically non-toxic. Therefore, it is ideal for making magnesium rods to protect the inner liner. The size of the magnesium rod directly affects the duration and effectiveness of the protection; the larger the magnesium rod, the better the protection and the longer the protection time.

[0059] The water tank is also equipped with an inlet pipe and an outlet pipe. The inlet pipe is used to deliver cold water into the water storage cavity formed inside the water tank, while the hot water in the water storage cavity is output from the outlet pipe.

[0060] The control board is used to receive detection signals from relevant sensors (such as water temperature sensors and flow sensors) and control the power supply to and from the electric heating components.

[0061] When the horizontal water heater is working, the electric heating element is powered on by the control board. When the water temperature in the tank reaches the set value, the electric heating element is powered off by the control board.

[0062] Example 1, as Figures 1-14 As shown, this embodiment provides a horizontal kitchen water heater, including:

[0063] The outer casing 1 has a mounting support surface 19 formed at its bottom;

[0064] Inner liner 2, which is disposed in the outer shell 1;

[0065] An electric heating element 3 is disposed in the inner liner 2;

[0066] The inlet and outlet pipe assembly 4 includes an inlet pipe 41 and an outlet pipe 42, which are sealed through the inner liner 2.

[0067] Specifically, in one embodiment of this application, a horizontal kitchen water heater has an installation support surface 19 formed at the bottom of its outer shell 1. When installed in a user's home, it is placed in a cabinet through the installation support surface 19 to complete the installation without the need for hanging.

[0068] In order to reduce the overall height of the horizontal water heater and increase the volume of the inner tank 2, the installation method of the inner tank 2 and the inlet / outlet pipe assembly 4 can be improved as follows.

[0069] The inner liner 2 is horizontally disposed within the outer shell 1; the electric heating tube 3 extends horizontally and is disposed within the inner liner 2; the outlet end of the water inlet pipe 41 is located within the inner liner 2 and is arranged in the lower region of the inner liner 2, and the inlet end of the water outlet pipe 42 is located within the inner liner 2 and is arranged in the upper region of the inner liner 2; wherein, the inlet end of the water inlet pipe 41 and the outlet end of the water outlet pipe 42 respectively extend outward from the outer shell 1 and extend horizontally.

[0070] Specifically, the inlet pipe 41 and the outlet pipe 42 extend laterally from the outer casing 1 to the outside of the outer casing 1. The inlet end of the inlet pipe 41 is in a laterally extended state to facilitate connection with the water pipe in the cabinet without occupying height space. The outlet end of the outlet pipe 42 is also in a laterally extended state to facilitate connection with the water pipe in the cabinet without occupying height space.

[0071] In this way, on the one hand, for the horizontal water heater, as long as the top height of the outer shell 1 meets the installation requirements, the horizontal water heater can be installed into the cabinet without being restricted by the connection pipe 45 of the inlet pipe 41 and the outlet pipe 42, which makes installation more convenient and more versatile; on the other hand, since the overall height of the outer shell 1 is not restricted by the height position of the inlet and outlet pipes 42, the diameter of the inner tank 2 inside the outer shell 1 can be further increased. With the length of the outer shell 1 remaining unchanged, the volume of the inner tank 2 can be effectively increased.

[0072] Since horizontal kitchen water heaters are installed in the cabinets of users' homes, the height of the outer casing 1 is 200mm-500mm, to distinguish it from conventional wall-mounted horizontal kitchen water heaters.

[0073] By arranging the inner liner 2 horizontally, and extending the inlet end of the water inlet pipe 41 and the outlet end of the water outlet pipe 42 horizontally to the outside of the outer shell 1, the height space inside the cabinet can be increased without occupying space during the connection with external pipes. This effectively increases the diameter of the inner liner 2. Normally, the height space inside the cabinet is limited, but it has sufficient depth to meet the installation requirements of the horizontal water heater. This allows the inner liner 2 of the horizontal water heater to have sufficient length. With the same length of inner liner 2, increasing the diameter of the inner liner 2 can effectively increase the water heater's capacity and improve the user experience.

[0074] In one embodiment, since the water outlet pipe 42 and the water inlet pipe 41 are arranged horizontally as a whole, in order to improve the hot water output rate of the horizontal water heater, the water inlet end of the water outlet pipe 42 is bent upward to form a first elbow, and the opening of the first elbow is close to the top wall of the inner tank 2.

[0075] Specifically, the water outlet pipe 42 is located at the water inlet end of the inner tank 2 to form a first elbow. The opening of the first elbow is located at the top of the inner tank 2. In this way, hot water can be output from the top of the inner tank 2 during the hot water output process to improve the hot water output rate.

[0076] Meanwhile, because the outlet pipe 42 has a first bend, the water inlet position of the outlet pipe 42 can be arranged to the maximum extent in the top area of ​​the inner liner 2. In this way, the outlet pipe 42 does not need to be as close as possible to the upper wall of the inner liner 2, thereby solving the technical problem of low welding quality caused by a larger intersection line between the outlet pipe 42 and the inner liner 2 and more burrs.

[0077] Similarly, the requirement to increase the hot water output rate can also be met by using an outer liner pipe 43 to cover the water outlet pipe 42. Specifically, the outer liner pipe 43 is located in the inner tank 2, and the free end of the outer liner pipe 43 bends upward to form a second elbow 431, the opening of the second elbow 431 being close to the top wall of the inner tank 2.

[0078] Specifically, an outer liner 43 is fitted around the outlet pipe 42. The outer liner 43 extends into the free end of the inner tank 2, forming a second bend 431. The opening of the second bend 431 is close to the top wall of the inner tank 2. In this way, during the process of outputting hot water through the outlet pipe 42, the hot water at the top of the inner tank 2 flows into the outer liner 43 via the second bend 431, and then flows into the outlet pipe 42 through the inlet end of the outlet pipe 42 for transportation and output to the outside of the outer shell 1.

[0079] Meanwhile, because the outer liner pipe 43 has a second bend 431, the water inlet position of the second bend 431 can be arranged to the maximum extent in the top area of ​​the inner liner 2. In this way, the outlet pipe 42 does not need to be as close as possible to the upper wall of the inner liner 2, thereby solving the technical problem of low welding quality caused by a larger intersection line between the outlet pipe 42 and the inner liner 2 and more burrs.

[0080] Furthermore, in order to facilitate the installation of the outer liner tube 43, the outer end of the outer liner tube 43 is provided with an outward flange structure 432, which overlaps the outer side of the inner liner 2.

[0081] Specifically, during the assembly process, the outer liner tube 43 is first inserted into the inner liner 2. After the outer liner tube 43 is inserted into place, it is positioned against the outer surface of the inner liner 2 by the outer flange structure 432 to meet the requirements for precise installation of the outer liner tube 43.

[0082] In one embodiment of this application, a flange 21 is provided at one end of the inner liner 2, and a mounting seat is provided at the mounting end of the electric heating tube 3, with the mounting seat disposed on the flange 21;

[0083] The other end of the inner liner 2 is provided with a first mounting pipe 22 and a second mounting pipe 23. The first mounting pipe 22 is arranged above the second mounting pipe 23. The first mounting pipe 22 and the second mounting pipe 23 are respectively welded to the inner liner 2 and respectively communicate with the inner liner 2. The water outlet pipe 42 is sealed and inserted into the first mounting pipe 22, and the water inlet pipe 41 is sealed and inserted into the second mounting pipe 23.

[0084] Specifically, to facilitate the installation of the inlet / outlet pipe assembly 4 and the electric heating element 3, a flange 21 is provided at one end of the inner tank 2 to meet the installation requirements of the electric heating element 3. A first mounting pipe 22 and a second mounting pipe 23 are provided at the other end of the inner tank 2, and are welded to the inner tank 2. This satisfies the installation requirements of the inlet pipe 41 and the outlet pipe 42.

[0085] In another embodiment of this application, the outer shell 1 is further provided with two foam support members. The two foam support members are arranged opposite to each other and vertically disposed in the outer shell 1. The sidewalls of the foam support members form concave surfaces, and the concave surfaces match the end contours of the inner liner 2.

[0086] The inner liner 2 is sandwiched between the two foamed support members, and a foamed layer is provided between the outer shell 1 and the inner liner 2. The foamed layer is arranged between the two foamed support members.

[0087] Specifically, since the inner pot 2 of the horizontal water heater is arranged horizontally, foam support components are provided at both ends of the inner pot 2 to provide good support and insulation. The concave surface formed by the foam support component matches the end face of the corresponding end of the inner pot 2, allowing the end of the inner pot 2 to fit tightly against the concave surface of the foam support component, thereby improving assembly reliability. In addition, the foam support component also serves to insulate the inner pot 2 at both ends.

[0088] After the ends of the inner liner 2 are supported by foamed support members and provided with thermal insulation, in order to improve the overall thermal insulation performance of the inner liner 2, foamed material is also filled between the two foamed support members. The foamed material forms a foamed layer between the inner liner 2 and the outer shell 1 to improve the thermal insulation performance of the inner liner 2.

[0089] Furthermore, since the two ends of the inner liner 2 have different structural forms, in order to facilitate assembly, the two foamed support components are divided into a first foamed component 13 and a second foamed component 14.

[0090] The first foaming component 13 is provided with a first mounting port 131, and the flange 21 provided on the inner liner 2 passes through the first mounting port 131;

[0091] The second foaming component 14 is provided with a second mounting port 141 and a third mounting port 142. The second mounting port 141 is arranged above the third mounting port 142. The water outlet pipe 42 passes through the second mounting port 141 and the water inlet pipe 41 passes through the third mounting port 142.

[0092] Specifically, the inner liner 2 is provided with the end of the flange 21 assembled onto the first foaming component 13. The flange 21 is used to install the electric heating tube 3. In order to meet the power supply requirements of the electric heating tube 3, a first mounting port 131 is provided on the first foaming component 13. The flange 21 passes through the first mounting port 131 to facilitate circuit wiring.

[0093] For the other end of the inner liner 2, an inlet pipe 41 and an outlet pipe 42 need to be installed. For this purpose, a second installation port 141 and a third installation port 142 are provided on the second foaming component 14. The first installation pipe 22 will pass through the second installation port 141, and the second installation pipe 23 will pass through the third installation port 142.

[0094] Furthermore, in order to improve the installation accuracy of the foam support and reduce the overflow and leakage of foam material, the bottom of the outer shell 1 is provided with a first baffle 111 and a second baffle 112.

[0095] The first foaming component 13 is arranged on the rear side of the first baffle 111, and the second foaming component 14 is arranged on the rear side of the second baffle.

[0096] Specifically, the first baffle 111 and the second baffle 112 can limit the position of the first foaming component 13 and the second foaming component 14 to ensure that the first foaming component 13 and the second foaming component 14 are installed in place. In addition, during the foaming process, the bottom of the first baffle 111 and the first foaming component 13 form an overlapping area. Similarly, the bottom of the second baffle 112 and the second foaming component 14 form an overlapping area, and the overlapping area is used to prevent the foaming material from overflowing.

[0097] Furthermore, in order to improve the installation reliability of the inner liner 2 and ensure that the position of the inner liner 2 remains stable during the foaming process, a mounting bracket is also provided at the bottom of the inner liner 2, which is fixedly connected to the outer shell 1.

[0098] Specifically, during assembly, on the one hand, the two ends of the inner liner 2 are supported by the first foaming component 13 and the second foaming component 14; on the other hand, the mounting base at the bottom of the inner liner 2 can be directly fixed to the bottom plate 11 of the outer shell 1 by screws or other means, so that the position between the inner liner 2 and the bottom plate 11 of the outer shell 1 is stable and immovable. In this way, during the foaming process, the force generated by the foaming material between the inner liner 2 and the outer shell 1 will not affect the position of the inner liner 2, thus improving the quality of the product.

[0099] The mounting bracket can be fixedly connected to the inner liner 2 by welding.

[0100] Furthermore, in order to improve assembly accuracy and ease of assembly, a positioning groove 113 is provided at the bottom of the outer shell 1, and the mounting base is located in the positioning groove 113.

[0101] Specifically, the bottom plate 11 of the outer shell 1 is also provided with an installation groove. When the inner liner 2 is assembled onto the bottom plate 11 of the outer shell 1, the installation groove on the bottom plate 11 can accommodate the mounting base at the bottom of the inner liner 2, so that pre-assembly can be achieved through the cooperation of the mounting base and the installation groove, thereby improving the assembly accuracy and assembly convenience.

[0102] In some embodiments of this application, the water inlet end of the water inlet pipe 41 and the water outlet end of the water outlet pipe 42 extend from the outer casing 1 in various forms, for example:

[0103] The inlet end of the water inlet pipe 41 and the outlet end of the water outlet pipe 42 are arranged at the rear end of the outer casing 1. Alternatively, the inlet end of the water inlet pipe 41 and the outlet end of the water outlet pipe 42 are arranged on the side of the outer casing 1.

[0104] Specifically, the example of arranging the water inlet end of the water inlet pipe 41 and the water outlet end of the water outlet pipe 42 at the rear end of the outer casing 1 will be used for illustration.

[0105] The inlet end of the water inlet pipe 41 and the outlet end of the water outlet pipe 42 are both located at the rear end of the outer casing 1. When connecting the water pipes, the water pipes in the user's home are connected at the rear of the outer casing 1. After connection, the pipes are located at the rear of the outer casing 1 and do not occupy the space at the top of the outer casing 1.

[0106] In another embodiment, in order to facilitate the user's operation of the horizontal kitchen water heater for temperature adjustment and to facilitate the maintenance of electrical components by operators later, an electrical compartment is provided at the front end of the outer casing 1, and an electrical control board 15 is provided in the electrical compartment.

[0107] Specifically, an electrical compartment is provided at the front end of the housing 1 to install the electronic control board 15. Correspondingly, the thermostat connected to the electronic control board 15 is also located in the electrical compartment, and the knob 151 for adjusting the thermostat is located on the outside of the front end of the housing 1.

[0108] In this way, after opening the cabinet, the user can adjust the heating temperature using the knob 151 on the front of the outer casing 1. Simultaneously, when maintenance is required, the operator can also open the cabinet and perform maintenance at the front of the outer casing 1.

[0109] In Example 2, since the inner liner 2 is arranged horizontally in the outer shell 1, and it is also necessary to meet the requirement that the inlet and outlet water pipes 42 extend laterally to the outside of the outer shell 1 and meet the requirements of horizontal pipe connection, the outer shell 1 is structurally improved as follows.

[0110] like Figures 3-8 As shown, the outer shell 1 includes a base plate 11 and an upper cover 12. The upper cover 12 is disposed on the base plate 11 from top to bottom. An installation cavity is formed between the upper cover 12 and the base plate 11. The bottom surface of the base plate 11 forms an installation support surface 19. The installation support surface 19 is configured to place the horizontal kitchen water heater on the bottom surface of the cabinet inside the cabinet.

[0111] The inner liner 2 is located in the mounting cavity and is disposed on the base plate 11. The upper cover 12 covers the upper part of the inner liner 2. A foaming space is formed between the upper cover 12, the base plate 11 and the inner liner 2, and a foaming layer is formed in the foaming space.

[0112] The inlet end of the water inlet pipe 41 and the outlet end of the water outlet pipe 42 extend outward from the upper cover 12 and extend laterally.

[0113] Specifically, the outer shell 1 adopts a split structure design, which includes a bottom plate 11 and an upper cover 12. The bottom plate 11 is used for pre-assembly of the inner liner 2, the first foaming component 13 and the second foaming component 14. Then, the upper cover 12 is assembled from the top down onto the bottom plate 11 to cover the inner liner 2, the first foaming component 13 and the second foaming component 14 pre-assembled on the bottom plate 11.

[0114] After the upper cover 12 is installed on the base plate 11, a foaming space is formed between the upper cover 12, the base plate 11, the inner liner 2, the first foaming component 13 and the second foaming component 14, and then foaming material is filled into the foaming space to form a foaming layer.

[0115] The outer shell 1 is formed by the upper cover 12 and the base plate 11 to install the inner liner 2 and other components. During the assembly process, the inner liner 2 and other components are first installed and fixed on the base plate 11. Then, the upper cover is installed on the base plate 11 from above and covers the inner liner 2. The outer shell 1 adopts a split design. During assembly, the upper cover 12 is assembled from top to bottom, which reduces the assembly difficulty and improves the assembly efficiency.

[0116] In one embodiment, in order to improve the connection reliability between the upper cover 12 and the base plate 11, the edge of the base plate 11 is provided with an upper flange structure 114, and the lower edge of the upper cover 12 wraps around the outside of the upper flange structure 114.

[0117] Specifically, when the upper cover 12 is assembled with the base plate 11, the upturned edge structure 114 formed by the edge of the base plate 11 is inserted into the inner edge of the upper cover 12 so that the upturned edge abuts against the inner wall of the upper cover 12, so that the base plate 11 and the upper cover 12 can be pre-assembled together.

[0118] The upper cover 12 has a protruding connecting part on its inner wall. The connecting part has a threaded hole. The screw passes through the mounting hole on the base plate 11 and is threaded into the threaded hole so that the base plate 11 and the upper cover 12 are fixedly connected together.

[0119] In another embodiment, the upper cover 12 is provided with an installation notch 121, which extends to the lower edge of the upper cover 12;

[0120] The inlet end of the inlet pipe 41 and the outlet end of the outlet pipe 42 are located in the installation notch 121;

[0121] The outer casing 1 also includes a decorative panel 16, which has two mounting openings 161. The decorative panel 16 is disposed on the upper cover 12 and covers the mounting notch 121. The water inlet end of the water inlet pipe 41 and the water outlet end of the water outlet pipe 42 pass through the corresponding mounting openings 161.

[0122] Specifically, to effectively reduce assembly difficulty, the inlet pipe 41 and outlet pipe 42 connected to the inner liner 2 need to extend to the outside of the upper cover 12, by providing an installation notch 121 on the upper cover 12. During the assembly of the upper cover 12 to the base plate 11, the installation notch 121 on the upper cover 12 will avoid the inlet pipe 41 and outlet pipe 42 extending from the inner liner 2, thus allowing the operator to complete the assembly of the upper cover 12 without adjusting its posture, simply by placing the upper cover 12 vertically on the base plate 11. After the upper cover 12 is assembled to the base plate 11, the inlet pipe 41 and outlet pipe 42 will be located in the installation notch 121. Then, the decorative panel 16 is installed on the upper cover 12 to cover the installation notch 121, and the inlet pipe 41 and outlet pipe 42 will be inserted into the corresponding installation openings 161.

[0123] The design of the mounting notch 121 not only meets the horizontal installation requirements of the inlet pipe 41 and the outlet pipe 42, but also effectively reduces the assembly difficulty and improves assembly efficiency. The decorative panel 16 is installed on the upper cover 12 in a basically vertical arrangement. The mounting opening 161 on the decorative panel 16 can meet the installation requirements of the inlet pipe 41 and the outlet pipe 42. During assembly, after the decorative panel 16 is adjusted to the correct position, the inlet pipe 41 and the outlet pipe 42 are inserted into the corresponding mounting opening 161, and the assembly is completed.

[0124] Furthermore, the decorative panel 16 is provided with a claw, and the upper cover 12 is provided with a locking hole, which is arranged at the mounting notch 121;

[0125] The claw is engaged in the card hole.

[0126] Specifically, for the decorative panel 16, in order to improve assembly efficiency and achieve screwless fixing, a clip can be provided on the decorative panel 16. The decorative panel 16 is inserted into the clip hole by the clip to realize the decorative panel 16 being snapped onto the upper cover 12.

[0127] In another embodiment, the upper cover 12 is also provided with an inspection port.

[0128] The outer casing 1 also includes a front panel 17 and a mounting liner 18. The mounting liner 18 is disposed between the upper cover 12 and the bottom plate 11, and the mounting liner 18 divides the mounting cavity into a first cavity and a second cavity.

[0129] The access port is connected to the first cavity, the inner liner 2 is located in the second cavity, and the front panel 17 is detachably mounted on the upper cover 12 and covers the access port.

[0130] The horizontal kitchen water heater also includes an electrical control board 15, which is electrically connected to the electric heating tube 3 and is located in the first cavity; the first cavity forms an electrical chamber.

[0131] Specifically, to facilitate the installation of electrical components such as the control board 15 in the electrical compartment, the outer casing 1 also includes a front panel 17 and a mounting plate 18. The mounting plate 18 divides the mounting cavity into a first cavity and a second cavity, thereby enabling independent installation of the inner liner 2 and the control board 15. Furthermore, the front panel 17 is detachably mounted on the upper cover 12, making it easier for maintenance personnel to open the front panel 17 to expose the control board 15 and other electrical components inside the electrical compartment during future maintenance.

[0132] Furthermore, a first baffle 111 is provided on the base plate 11, and a slot 181 is provided at the lower part of the mounting liner 18, wherein the first baffle 111 is engaged in the slot 181.

[0133] Specifically, in order to facilitate the installation and positioning of the mounting liner 18, a slot 181 is provided at the lower part of the mounting liner 18. The mounting liner 18 is snapped into the first baffle 111 provided on the bottom plate 11 through the slot 181, so as to realize the pre-assembly of the mounting liner 18 onto the bottom plate 11.

[0134] Correspondingly, the first foam component 13 will be attached to the mounting plate 18, and the mounting plate 18 will be used to position and install the first foam component 13.

[0135] Furthermore, in order to position the top of the mounting liner 18, the top wall of the upper cover 12 is provided with a positioning baffle 122, and the top of the mounting liner 18 overlaps the positioning baffle 122.

[0136] Specifically, after the upper cover 12 is assembled onto the base plate 11, the top of the mounting liner 18 will overlap the positioning baffle 122. After the first foaming component 13, the second foaming component 14 and the inner liner 2 are assembled onto the base plate 11, the first foaming component 13 will be tightly attached to the mounting liner 18 so that the top of the mounting liner 18 is tightly attached to the positioning baffle 122.

[0137] Furthermore, the mounting liner 18 is provided with an auxiliary opening 182; the outer shell 1 is also provided with a first foaming component 13 and a second foaming component 14; the first foaming component 13 is provided with a first mounting port 131, and the second foaming component 14 is provided with a second mounting port 141 and a third mounting port 142, with the second mounting port 141 arranged above the third mounting port 142; the flange 21 on the inner liner 2 passes through the first mounting port 131 and the auxiliary opening 182 in sequence, the first foaming component 13 is sandwiched between the mounting liner 18 and the inner liner 2, the water outlet pipe 42 passes through the second mounting port 141, and the water inlet pipe 41 passes through the third mounting port 142.

[0138] Specifically, the flange 21 on the inner liner 2 passes through the first mounting port 131 on the first foaming element 13 and is located in the electrical compartment via the auxiliary opening 182, so that the electric heating tube 3 on the flange 21 can be connected to the electrical control board 15 in the electrical compartment via a cable.

[0139] In embodiment three, in order to improve safety and reliability, the electrical compartment is located at the front end of the housing 1, while the water inlet end of the water inlet pipe 41 and the water outlet end of the water outlet pipe 42 are located at the rear end of the housing 1.

[0140] like Figures 1-7 , Figure 14 As shown, by separating the electrical compartment and the inlet / outlet water pipes 42, the electrical compartment is located at the front end of the housing 1 for easy user operation, while the inlet / outlet water pipes 42 are completely isolated from the electrical compartment. This can prevent water leakage at the end connection of the inlet / outlet water pipes 42, which could damage the electrical components in the electrical compartment, thereby improving the reliability of the water heater.

[0141] Since the electrical compartment is located at the front end of the outer casing 1, the power supply cable needs to be connected to the electrical control board 15 in the electrical compartment. In order to achieve concealed wiring, the lower surface of the base plate 11 is provided with a wiring groove 115, which extends from front to back to the rear side of the outer casing 1.

[0142] The base plate 11 is also provided with a cable outlet hole 116, which is connected to the cable routing groove 115; the power supply cable connected to the electronic control board 15 passes through the cable outlet hole 116 and extends out to the rear side of the housing 1 via the cable routing groove 115.

[0143] Specifically, an electrical compartment is formed at the front end of the housing 1 to mount the electrical control board 15. The power supply cable connected to the electrical control board 15 is arranged in the wiring groove 115 through the outlet hole 116 from the electrical compartment, and finally passes out from the wiring groove 115 to the rear end of the housing 1.

[0144] In this way, after the horizontal kitchen water heater is installed in the cabinet of the user's home, the power supply cable will be arranged on the back of the outer casing 1. This way, there are no cables leading out from the front of the outer casing 1, which is more conducive to optimizing the appearance.

[0145] Furthermore, a cable routing conduit 117 is also provided on the base plate 11. The cable routing conduit 117 is arranged vertically and connects to the cable outlet 116. The power supply cable passes through the cable routing conduit 117.

[0146] Specifically, since the horizontal water heater is placed inside the cabinet, when water overflows from the sink above the cabinet, causing water to accumulate at the bottom of the cabinet containing the outer casing 1, the water will enter the outlet hole 116 through the wiring groove 115. Furthermore, because the upper surface of the base plate 11 is also equipped with a vertically arranged wiring conduit 117, and the height of the wiring conduit 117 is higher than the upper surface of the base plate 11, even if there is water inside the cabinet, the water level will not exceed the height of the top opening of the wiring conduit 117, thus preventing water from entering the appliance compartment through the outlet hole 116 and further improving reliability.

[0147] In another embodiment, the base plate 11 is further provided with a wire blocking part 118, which extends perpendicular to the length direction of the wire routing groove 115, and the free end of the wire blocking part 118 forms a gap with the groove wall of the wire routing groove 115.

[0148] Specifically, the wire blocking part 118 is provided on one edge of the wire routing groove 115 and extends toward the other edge of the wire routing groove 115. A gap is formed between the free end of the wire blocking part 118 and the other edge of the wire routing groove 115. The distance of this gap is smaller than the diameter of the power supply cable, and it satisfies the requirement that the power supply cable can enter the wire routing groove 115 through the gap after being squeezed and deformed.

[0149] In one embodiment, the base plate 11 is further provided with a transport lifting part 119 on both sides, and the transport lifting part 119 is an upward concave structure formed on the bottom surface of the base plate 11.

[0150] Specifically, to facilitate the handling of the horizontal water heater by operators, a lifting part 119 can be provided on the base plate 11. The lifting part 119 is formed on the base plate 11 and is concave upward. During handling, the user can insert their hand into the lifting part 119 to lift and move the horizontal water heater.

[0151] Example 4: For horizontal water heaters, in order to reduce the overall height while still meeting the requirement of efficient heating of the electric heating element 3 in the inner tank 2, the following structural and installation improvements are made to the electric heating element 3 to meet the installation requirements of the water inlet pipe 41 and the water outlet pipe 42 being arranged horizontally in the inner tank 2, and to ensure that the electric heating element 3 does not interfere with the installation of the water inlet pipe 41 and meets the requirement of effective heating.

[0152] like Figures 10-13 As shown, the electric heating tube 3 includes a straight support section 31 and a bent heating section 32, wherein the bent heating section 32 is connected to the straight support section 31;

[0153] The straight support section 31 is fixedly installed on the flange 21 on the inner liner 2. The curved heating section 32 is offset toward the side wall of the inner liner 2 and arranged on one side of the water inlet pipe 41. The curved heating section 32 is located at the bottom of the inner liner 2.

[0154] Specifically, the end of the straight support section 31 is fixed to the mounting base, so as to be fixedly mounted on the flange 21 of the inner tank 2 by the mounting base. The straight support section 31 can support the curved heating section 32. The curved heating section 32 is arranged in the lower part of the inner tank 2 by means of its own curved extension structure, so as to heat the water from the bottom of the inner tank 2 by means of the curved heating section 32 to improve the heating efficiency of the water in the inner tank 2.

[0155] The curved heating section 32 is arranged near the bottom area of ​​the inner liner 2.

[0156] In addition, to avoid interference with the bottom water inlet pipe 41, the curved heating section 32 is offset to one side of the inner tank 2. In this way, although both the electric heating tube 3 and the water inlet pipe 41 are arranged laterally in the inner tank 2, the offset installation of the electric heating tube 3 can avoid installation interference and ensure heating efficiency.

[0157] Furthermore, in order to improve the hot water output rate and achieve instant hot water supply, the electric heating tube 3 also includes an extended heating section (not shown), which extends to the top of the inner tank 2 and is arranged close to the water outlet pipe 42.

[0158] Specifically, for the electric heating tube 3, it can also be provided with an extended heating section that extends upward and is arranged around the water outlet pipe 42. The extended heating section can heat the water entering the water outlet pipe 42 and the water around the water outlet pipe 42, thereby realizing instant hot water supply.

[0159] The extended heating section can be connected to the curved heating section 32 and extend upward from the curved heating section 32 to the outlet pipe 42. Alternatively, the extended heating section can be independent of the curved heating section 32, and can be a separate heating tube body, with its end fixedly mounted on the mounting base.

[0160] In addition, the extended heating section is also wrapped around the periphery of the water outlet pipe 42.

[0161] Specifically, the extended heating section can be wrapped around the outside of the water outlet pipe 42 to increase the overall length of the extended heating section, thereby improving heating efficiency and heating speed.

[0162] In some embodiments of this application, a heat insulation pad 24 is further provided between the inner liner 2 and the foam support member.

[0163] Specifically, because the inner liner 2 is horizontally arranged and has a relatively small overall height, the foamed support at the ends of the inner liner 2 is tightly attached to it. During the dry-burning test, the temperature at the top of the inner liner 2 rises rapidly, reaching 200℃ within a short time. The foamed support is typically made of foam, which is easily affected by high temperatures and may melt.

[0164] Therefore, a heat insulation pad 24 is provided at at least one end of the inner liner 2 to protect the foam support.

[0165] Normally, the electric heating tubes 3 distributed at the flange 21 of the inner liner 2 are straight support sections 31, which generate less heat than the curved heating sections 32. The curved heating sections 32 generate more heat because they are close to the positions where the water inlet pipe 41 and water outlet pipe 42 are installed and fixed on the inner liner 2. Therefore, at least a heat insulation pad 24 is provided between the inner liner 2 and the second foaming component 14.

[0166] Furthermore, to facilitate the installation of the positioning heat insulation pad 24, the heat insulation pad 24 can be bonded to the outer surface of the inner liner 2.

[0167] Alternatively, the heat insulation pad 24 is provided with a positioning part 241, and correspondingly, the second foaming part 14 is provided with a positioning mating part 143.

[0168] Specifically, during the actual assembly process, the heat insulation pad 24 will be attached to the end of the inner liner 2 where the water inlet pipe and the water outlet pipe are located, and the inner liner 2 will be sandwiched between the first foaming component 13 and the second foaming component 14. When the inner liner 2 is assembled between the first foaming component 13 and the second foaming component 14, the positioning part 241 of the heat insulation pad 24 cooperates with the positioning mating part 143 on the second foaming component 14 to position the heat insulation pad 24, so as to ensure that the heat insulation pad 24 can be accurately positioned, thereby playing a good heat insulation role in the position of the inner liner 2 that needs heat insulation, and playing a role in heat insulation protection for the second foaming component 14.

[0169] The positioning part 241 can be a positioning protrusion, and the corresponding positioning mating part 143 is a positioning groove formed on the second foaming part 14. The positioning protrusion is inserted into the positioning groove to realize the positioning and installation of the heat insulation pad 24.

[0170] Preferably, the heat insulation pad 24 covers the recessed surface of the second foam 14, thereby completely isolating the second foam 14 from the inner liner 2.

[0171] In another embodiment of this application, the horizontal kitchen water heater further includes a temperature sensing component, which includes a temperature measuring tube 26 and a temperature sensor, wherein the temperature measuring tube 26 is disposed at the end of the inner liner 2.

[0172] Specifically, the temperature sensing component extends into the inner tank 2 through a temperature measuring tube to measure the water temperature in the inner tank 2 using a temperature sensor.

[0173] The temperature measuring tube can be fixed on a mounting base for support.

[0174] Alternatively, the temperature sensing tube can be directly fixed to the inner liner 2 and positioned obliquely above the flange 21. In this way, during the dry-burning test, because the temperature sensing tube is closer to the top of the inner liner 2, the temperature sensor can detect the temperature of the top of the inner liner 2 more promptly and effectively.

[0175] In another embodiment of this application, a thermostatic valve 44 may be configured to achieve constant temperature water output. Specifically, a thermostatic valve 44 is also provided at the outlet end of the water outlet pipe 42, and a T-junction pipe is also provided at the inlet end of the water inlet pipe 41; a connecting pipe 45 is also provided between the thermostatic valve 44 and the T-junction pipe.

[0176] Specifically, the thermostatic valve 44 connected to the outlet pipe 42 is also connected to the tee pipe of the inlet pipe 41 through the connecting pipe 45. In actual use, when the outlet water temperature of the outlet pipe 42 is higher than the set temperature of the thermostatic valve 44, part of the cold water flowing in through the tee pipe enters the thermostatic valve 44 for automatic water temperature adjustment.

[0177] Example 5, in some embodiments of this application, refer to Figure 15 and Figure 16 , Figure 15 This is a structural diagram of a horizontal kitchen water heater viewed from the front. Figure 16 This is a structural diagram of a horizontal water heater viewed from the rear. The outer casing 1 includes a base plate 11 and an upper cover 12. Figure 17 This is a structural diagram of the base plate 11. Figure 18 This is a structural diagram of the upper cover 12 as viewed from the bottom side. Figure 19 This is a structural diagram of the upper cover 12 as viewed from the top side.

[0178] A mounting cavity is formed between the base plate 11 and the upper cover 12. The base plate 11 includes a bottom wall 011 and a circumferential wall 012. The bottom surface of the bottom wall 011 forms a support surface, and the circumferential wall 012 extends upward from the bottom wall 011 by a certain distance. A first mounting portion 013 is provided at the top of the circumferential wall 012, and a second mounting portion 016 is provided at the bottom of the upper cover 12. Fasteners (e.g., screws) pass through the first mounting portion 013 and the second mounting portion 016 from bottom to top to fix the base plate 11 and the upper cover 12 in place. There is a distance between the fasteners and the bottom wall 011.

[0179] In other words, the circumferential wall 012 extends upward from the bottom wall 011 by a certain distance, and the circumferential wall 012 is fixedly connected to the upper cover 12 by screws. Since the circumferential wall 012 extends upward from the bottom wall 011 by a certain distance, there is a certain distance between the screws and the bottom wall 011. Therefore, when water accumulates on the surface where the kitchen water heater is placed, it can effectively prevent the screws from coming into contact with water, thereby preventing the screws from being corroded by water. This improves the connection reliability between the bottom plate 11 and the upper cover 12, and improves the connection reliability of the outer shell 1.

[0180] The circumferential wall 012 extends upward from the bottom wall 011 by a certain distance. The first mounting part 013 is located at the top of the circumferential wall 012, and the second mounting part 016 is located at the bottom of the upper cover 12. When the screw is driven into the first mounting part 013 and the second mounting part 016 from bottom to top, the distance between the circumferential wall 012 and the bottom wall 011 provides a certain installation space for the screw-tightening operation, which facilitates the screw-tightening operation.

[0181] In some embodiments of this application, a first mounting portion 013 is provided on the inner wall of the circumferential wall 012, an avoidance notch 014 is provided on the outer wall of the circumferential wall 012, a fastener passes through the avoidance notch 014 and through the first mounting portion 013, and a second mounting portion 016 is provided on the inner wall of the upper cover 12.

[0182] The clearance notch 014 provides clearance for screw driving operations, making the screw driving process easier. Furthermore, the clearance notch 014 also shields the screw after installation, preventing the nut from being exposed.

[0183] In some embodiments of this application, reference is made to Figure 17 The top of the circumferential wall 012 is provided with a first notch 015, as shown in the reference. Figure 19 The bottom of the upper cover 12 is provided with a second notch 017, and the first notch 015 and the second notch 017 form a first opening 018. A second opening 019 is provided at the upper position of the upper cover 12, and the dimension of the second opening 019 along the height direction of the outer shell 1 is larger than the dimension along the width direction of the outer shell 1.

[0184] The horizontal water heater also includes an inlet pipe 41 and an outlet pipe 42. The inlet pipe 41 passes through the first opening 018, and the outlet pipe 42 passes through the second opening 019.

[0185] Specifically, during installation, the inner liner 2, inlet pipe 41, outlet pipe 42, and other components are first installed on the base plate 11. A portion of the inlet pipe 41 is embedded in the first notch 015. Then, the upper cover 12 is fastened onto the base plate 11 from top to bottom. The second notch 017 is aligned with the first notch 015 to form the first opening 018, allowing the inlet pipe 41 to pass smoothly through the outer shell. At the same time, since the second opening 019 is longer vertically, when the upper cover 12 is fastened from top to bottom, the upper cover 12 can be slightly tilted downwards, allowing the outlet pipe 42 to be smoothly inserted into the second opening 019. Then, the upper cover 12 is adjusted to a vertical position, ensuring that the first notch 015 and the second notch 017 are aligned, and maintaining the state where the outlet pipe 42 passes through the second opening 019.

[0186] In some embodiments of this application, the outer shell 1 further includes a decorative panel 16, which is connected to the circumferential wall 012 and the upper cover 12. The decorative panel 16 is provided with two mounting openings 161, which are connected to the first opening 018 and the second opening 019 respectively. The water inlet pipe 41 and the water outlet pipe 42 pass through the mounting openings 161.

[0187] To facilitate the installation of the inlet pipe 41 and the outlet pipe 42, the diameters of the first opening 018 and the second opening 019 are generally larger than the diameters of the inlet pipe 41 and the outlet pipe 42. After the outer casing 1 is installed, the decorative panel 16 is then installed on the outer casing 1. The decorative panel 16 covers the portion of the first opening 018 and the second opening 019 that is larger than the inlet pipe 41 and the outlet pipe 42, thus preventing the internal structure of the outer casing 1 from being exposed.

[0188] In some embodiments of this application, the decorative panel 16 is provided with a claw, and the upper cover 12 and the circumferential wall 012 are provided with a locking hole 021, and the claw is engaged in the locking hole 021.

[0189] Specifically, for the decorative panel 16, in order to improve assembly efficiency and achieve screwless fixing, a claw can be provided on the decorative panel 16. The decorative panel 16 is inserted into the clip hole 021 through the claw, so that the decorative panel 16 is clipped onto the outer shell 1.

[0190] In some embodiments of this application, reference is made to Figure 15 The knob 151, which is connected to the thermostat, is located on the left or right side wall of the housing 1.

[0191] By placing the knob 151 on its side, the height of the horizontal water heater is not increased, which facilitates the installation of the horizontal water heater in the limited space under the sink and makes it easier for users to operate.

[0192] In some embodiments of this application, the outer casing 1 further includes a front sidewall, and a protruding structure 020 is provided at the arcuate junction of one of the left sidewall and the right sidewall with the front sidewall. The protruding structure 020 has a plane, and the knob 151 is disposed on the plane.

[0193] By setting a protruding structure 020 at the arc-shaped junction of two adjacent sidewalls, the knob 151 is placed on the plane of the protruding structure 020, which facilitates the installation of the knob 151, makes full use of the space at the arc-shaped junction, and ensures that the knob 151 is placed on the side without causing an additional increase in the external dimensions of the outer casing 1.

[0194] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0195] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed in this application.

Claims

1. A horizontal water heater, characterized in that, Including: The outer casing has an internal mounting cavity. A mounting liner is disposed within the mounting cavity, dividing the mounting cavity into a first cavity and a second cavity. The first cavity forms an electrical compartment, in which an electrical control board is disposed, and the electrical control board is connected to a temperature controller. The inner liner is positioned horizontally within the second cavity; An electric heating element is installed in the inner liner; A knob, connected to the thermostat, is located on the left or right side wall of the housing.

2. The horizontal water heater according to claim 1, characterized in that, The outer casing also includes a front sidewall, and a protruding structure is provided at the arc-shaped junction of one of the left sidewall and the right sidewall with the front sidewall. The protruding structure has a plane, and the knob is disposed on the plane.

3. The horizontal water heater according to claim 1, characterized in that, The electrical compartment is located at the front end of the horizontal water heater; The horizontal water heater also includes an inlet pipe and an outlet pipe, with the inlet end of the inlet pipe and the outlet end of the outlet pipe extending laterally from the rear end of the horizontal water heater.

4. The horizontal water heater according to claim 1, characterized in that, The second cavity is provided with foam support members arranged opposite to each other, and the inner liner is located between the two foam support members. The side wall of the foam support member is formed with a concave surface, and the concave surface is adapted to the end contour of the inner liner.

5. The horizontal water heater according to claim 4, characterized in that, The two foam support members are divided into a first foam member and a second foam member. The first foam member is attached to the mounting liner, and the second foam member is located near the rear end of the outer shell.

6. The horizontal water heater according to claim 5, characterized in that, The outer shell includes a base plate and an upper cover, and the mounting cavity is formed between the base plate and the upper cover. A first baffle is provided on the base plate, and a slot is provided at the lower part of the mounting liner, and the first baffle is engaged in the slot.

7. The horizontal water heater according to claim 6, characterized in that, The top of the upper cover is provided with a positioning baffle, and the top of the mounting liner overlaps the positioning baffle.

8. The horizontal water heater according to claim 5, characterized in that, The mounting liner is provided with an auxiliary opening, the first foaming component is provided with a first mounting port, the flange of the inner liner passes through the first mounting port and the auxiliary opening, and the first foaming component is sandwiched between the mounting liner and the inner liner.

9. The horizontal water heater according to claim 5, characterized in that, The horizontal water heater also includes an inlet pipe and an outlet pipe; The second foaming component is provided with a second mounting port and a third mounting port. The second mounting port is arranged above the third mounting port. The water outlet pipe passes through the second mounting port, and the water inlet pipe passes through the third mounting port.

10. The horizontal water heater according to any one of claims 1 to 9, characterized in that, The bottom of the housing is provided with a wiring groove, which extends from front to back to the rear side of the housing.

Images