Instantaneous water heater casing and instantaneous water heater

Abstract

This invention discloses a casing for a fast-heating water heater and the fast-heating water heater itself. The casing includes: a housing with an open front, an electrical mounting area at the top, and a drain hole at the bottom; a guide plate disposed within the housing, the guide plate being inclined, a first end extending to the side wall of the housing, and a second end extending to one side of the drain hole, the first end being higher than the second end; and a front panel disposed on the front of the housing, forming a mounting cavity with the housing; wherein the guide plate is located below the mounting area. This invention, by configuring a drain hole at the bottom of the casing to promptly drain water from the casing, reduces the occurrence of electrical components being submerged in water, thereby improving the safety and reliability of the fast-heating water heater.

Description

Technical Field

[0001] This invention belongs to the field of household appliance technology, and particularly relates to a casing for a fast-heating water heater and a fast-heating water heater. Background Technology

[0002] Currently, electric water heaters are common household appliances. Electric water heaters are divided into storage-type water heaters and instantaneous water heaters, with instantaneous water heaters being widely used due to their ability to quickly provide hot water. An instantaneous water heater typically includes a casing and components such as an electrical control board and an electric heater located inside. The casing is equipped with an inlet pipe and an outlet pipe. The inlet pipe connects to the inlet of the electric heater, and the outlet pipe connects to the outlet of the electric heater. The electrical control board supplies power to the electric heater to heat the flowing water in real time.

[0003] Because the electric heater of an instant water heater is powered on when hot water is being dispensed, if a leak occurs at the connection between the water pipe and the electric heater, water will accumulate inside the casing. If the water level inside the casing is high enough to submerge the control board, there is a risk of electric shock. Conventional instant water heaters typically incur significant costs to implement leak-proof designs, or they use an overflow pipe on the electric heater to promptly release the pressurized water (such as the instant water heater disclosed in Chinese Patent No. 201520172265X).

[0004] However, in actual use, leaks still occur due to damage to the water pipe connections, leading to lower safety and reliability of instantaneous water heaters. Therefore, the technical problem this invention aims to solve is how to design a highly safe and reliable instantaneous water heater. Summary of the Invention

[0005] This invention provides a casing for an instant water heater and an instant water heater. By configuring a drain hole at the bottom of the casing, water inside the casing can be drained in a timely manner, thereby reducing the occurrence of electrical components being submerged in water and improving the safety and reliability of the instant water heater.

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

[0007] In one aspect, the present invention provides a housing for a fast-heating water heater, comprising:

[0008] The housing has an open front, an electrical installation area at the top, and a drainage hole at the bottom.

[0009] A flow guide plate is disposed in the housing and is arranged at an angle. A first end of the flow guide plate extends to the side wall of the housing, and a second end of the flow guide plate extends to one side of the drain hole. The first end of the flow guide plate is higher than the second end of the flow guide plate.

[0010] A front panel, wherein the front panel is disposed on the front side of the housing and forms a mounting cavity therebetween with the housing;

[0011] The guide plate is located below the installation area.

[0012] Furthermore, guide plates are arranged on both sides of the drainage hole.

[0013] Furthermore, the guide plate comprises multiple plates arranged sequentially; the height of the plates gradually decreases along the side wall of the housing towards the drain hole.

[0014] Furthermore, the drain hole is located near the back of the housing.

[0015] Furthermore, a mounting base is provided at the bottom of the housing, and the drain hole is located at the rear of the mounting base.

[0016] Furthermore, the back of the housing is formed with a groove recessed into the mounting base, and the drain hole is opened on the side wall of the mounting base and communicates with the groove.

[0017] Furthermore, a drainage groove is formed between the mounting base and the lower end of the guide plate.

[0018] Furthermore, the longitudinal section of the drainage channel has a V-shaped structure.

[0019] In another aspect, the present invention also provides a fast-heating water heater, including an inlet pipe, an outlet pipe, a power board, a display control board, and an electric heater. The inlet pipe and the outlet pipe are respectively connected to the electric heater. The power board, the display control board, and the electric heater are electrically connected to each other. The fast-heating water heater also includes the aforementioned housing, in which the power board, the display control board, and the electric heater are disposed.

[0020] Furthermore, the electric heater and the power supply board are arranged side by side in the mounting area of ​​the instantaneous water heater casing, and the display control panel is located below the electric heater and the power supply board, and is situated above and in front of the drain hole in the instantaneous water heater casing.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are as follows: by forming an installation area in the upper part of the shell to install electrical components, and the drain hole is set at the bottom of the shell, in the event of water leakage or other reasons causing water to enter the interior, the water will flow to the bottom area of ​​the shell under the action of gravity. More importantly, the water can be guided to the drain hole quickly by the inclined guide plate. The drain hole is a straight-outlet structure, so that the water inside the shell can be discharged quickly and in a timely manner, reducing or avoiding the occurrence of excessive water level inside the shell submerging electrical components, thereby improving the safety and reliability of the instantaneous water heater. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of one embodiment of the outer casing for a fast-heating water heater according to the present invention;

[0024] Figure 2 This is a second schematic diagram of the structure of an embodiment of the casing for a fast-heating water heater according to the present invention;

[0025] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0026] Figure 4 for Figure 1 One of the structural schematic diagrams of the middle shell;

[0027] Figure 5 for Figure 4 Sectional view along the BB direction;

[0028] Figure 6 for Figure 1 Schematic diagram of the middle shell structure (Part 2);

[0029] Figure 7 for Figure 6 A magnified view of a portion of region C in the middle;

[0030] Figure 8 This is a partial structural schematic diagram of an embodiment of the instantaneous water heater of the present invention. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that in the description of this invention, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are 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 invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Example 1, as Figures 1-6 As shown in the figure, this embodiment proposes a casing 1 for a fast-heating water heater, including: casing 11, baffle plate 12 and front panel 13.

[0034] The front of the housing 11 is an open structure, the upper part of the housing 11 is provided with an electrical installation area 111, and the bottom of the housing 1 is provided with a drain hole 112.

[0035] The guide plate 12 is disposed in the housing 11. The guide plate 12 is arranged at an angle. The first end of the guide plate 12 extends to the side wall of the housing 11, and the second end of the guide plate 12 extends to one side of the drain hole 112. The first end of the guide plate 12 is higher than the second end of the guide plate 12.

[0036] The front panel 13 is disposed on the front of the housing 11 and forms a mounting cavity between the housing 11 and the housing 11;

[0037] The guide plate 12 is located below the installation area.

[0038] Specifically, the outer casing 1 houses electrical components such as the control board and electric heater. These components must be protected from water immersion during use to ensure the safety of the instantaneous water heater. After assembly, the housing 11 and front panel 13 form a relatively enclosed cavity inside the outer casing 1. In the event of a leak, water will accumulate at the bottom of the outer casing 1. If the water cannot be drained promptly, or if a high water level forms in a certain area of ​​the outer casing 1, the electrical components may become submerged, leading to a safety hazard.

[0039] To this end, an electrical mounting area 111 for installing electrical components is formed in the upper part of the housing 11, allowing the electrical components to be installed in a relatively high area, and an open drain hole 112 is provided at the bottom of the housing 11. Thus, in actual use, when water leaks inside the housing 1, the water will flow directly to the bottom of the housing 1 under gravity and be discharged to the outside of the housing 1 through the drain hole 112. More importantly, in the event of a leak due to a malfunction in the electric heater in the upper electrical mounting area 111 of the housing 1, the water can be quickly drawn to the drain hole 112 via the bottom guide plate 12. Furthermore, the guide plate 12 effectively collects the water flowing down from above, preventing water from accumulating at a high level at a certain position at the bottom of the housing 1 due to poor drainage, thus achieving more thorough and efficient drainage and meeting the requirements for safe and reliable use.

[0040] In some embodiments, the drain hole 112 is located at the bottom and in the middle of the housing 11. Correspondingly, guide plates 12 are arranged on both sides of the drain hole 112 in the housing 11. The guide plates 12 on both sides of the drain hole 112 are inclined relative to each other so that the water flowing from both sides flows towards the drain hole 112 in the middle, so as to realize the smooth discharge of water inside the housing 1. The guide plates 12 on both sides of the drain hole 112 form a funnel-like structure and span the width of the housing 11, so as to collect the leaked water more comprehensively and effectively and let it flow into the drain hole 112.

[0041] In some embodiments, to avoid affecting the installation requirements of related components in the housing 1, the guide plate 12 is designed in segments, i.e., the guide plate 12 includes multiple plates 121 arranged sequentially; the height of the plates 121 gradually decreases along the side wall of the housing 11 to the drain hole 112. Specifically, the guide plate 12 is composed of multiple plates 121, which can be designed according to the installation requirements of the structural components inside the housing 1 to meet the assembly requirements. For the multiple plates 121, the height gradually decreases along the side wall of the housing 11 to the drain hole 112, and when the corresponding plates 121 need to be arranged at an angle, they are also arranged at an angle downwards towards the drain hole 112, thereby ensuring that the water flows smoothly to the drain hole 112.

[0042] In a preferred embodiment, to prevent water drained from the casing 1 from flowing randomly, the drain hole 112 is positioned close to the back of the casing 11. Specifically, since the casing 1 of an instant water heater is typically mounted on a wall when installed in a user's home, the design of the drain hole 112 being close to the back of the casing 11 ensures that the water flowing out of the drain hole 112 will flow down the wall, thus preventing the drained water from dripping directly onto the indoor floor and creating a large water splash area on the indoor floor, thereby improving the user experience.

[0043] In some embodiments, due to the miniaturized and compact design of the instantaneous water heater, the overall size of the outer casing 1 is relatively small, and the layout of the internal components is also very compact. Therefore, to meet the requirements of miniaturization and ensure smooth water flow, a mounting base 14 is provided at the bottom of the casing 11, and a drain hole 112 is located at the rear of the mounting base 14. Specifically, the mounting base 14 is positioned at the bottom of the casing 11 to mount and fix the relevant components inside the casing 1, while the drain hole 112 is located in the rear region of the mounting base 14, thus utilizing the space of the mounting base 14 to form the drain hole 112.

[0044] In another embodiment, a groove 15 is formed on the back of the housing 11, recessed towards the mounting base 14, and a drain hole 112 is formed on the side wall of the mounting base 14 and communicates with the groove 15. Specifically, the mounting base 14 is integrally formed into the outer shell 1 during the injection molding process of the housing 11. Correspondingly, during the injection molding process, the groove 15 is formed on the back of the housing 11, and the drain hole 112 is directly formed on the side wall of the mounting base 14 and communicates with the groove 15. Since a certain space is formed between the groove 15 and the wall, water discharged from the drain hole 112 flows into the groove 15, and a certain space is reserved between the groove 15 and the wall so that the discharged water can flow smoothly down the wall. At the same time, the mounting base 14 can also fix and install related components in the outer shell 1 to meet the design requirements of a compact structure.

[0045] In one embodiment, the mounting base 14 has drainage holes 112 on both side walls, and correspondingly, guide plates 12 are arranged on both sides of the mounting base 14. A drainage groove is formed between the mounting base 14 and the lower end of the guide plates 12, which collects the collected water and discharges it promptly through the drainage holes 112. Because the guide plates 12 are arranged at an angle, the longitudinal section of the drainage groove has a V-shaped structure, which better collects leaking water.

[0046] In embodiment two, the present invention also provides a fast-heating water heater, comprising: a shell 1, an inlet pipe 2, an outlet pipe 3, a power board 4, a display and control board 5, and an electric heater 6. The inlet pipe 2 and the outlet pipe 3 are respectively connected to the electric heater 6. The power board 4, the display and control board 5, and the electric heater 6 are electrically connected to each other. The fast-heating water heater shell is also included, with the power board 4, the display and control board 5, and the electric heater 6 disposed in the fast-heating water heater shell.

[0047] Specifically, in actual use, water is introduced into the electric heater 6 through the inlet pipe 2, heated, and then output from the outlet pipe 3. The power board 4 and the display control board 5 serve as the electrical control boards for the instantaneous water heater. The power board 4 is used to connect to an external power supply (e.g., mains power) to introduce electrical energy, while the display control board 5 controls the power board 4 to supply power to the electric heater 6 and simultaneously controls the electric heater 6 to operate and heat. The specific physical characteristics of the power board 4, display control board 5, and electric heater 6 can be found in the configuration of a conventional instantaneous water heater, and will not be elaborated upon here.

[0048] In one embodiment, to achieve a more rational and compact layout within the housing 1 and to effectively isolate water and electricity, the electric heater 6 and the power supply board 4 are arranged side-by-side in the mounting area of ​​the housing for the instantaneous water heater. The display control panel 5 is positioned below the electric heater 6 and the power supply board 4, and is located above and in front of the drain hole in the housing for the instantaneous water heater. Specifically, the electric heater 6 and the power supply board 4 are arranged side-by-side and directly fixed to the back plate of the housing 11. The electric heater 6 and the power supply board 4 are positioned above the drain hole 112 to maximize their distance from the drain hole 112. The display control panel 5 is located in the front area of ​​the housing 1. Typically, an installation window is formed on the front panel 13 of the housing 1 to expose the display screen and buttons on the display control panel 5. Positioning the display control panel 5 at the front and away from the drain hole 112 further maximizes its distance from the water-bearing area while simultaneously meeting the requirement of a compact internal structure design for the housing 1.

[0049] Compared with the prior art, the advantages and positive effects of the present invention are as follows: by forming an installation area in the upper part of the shell to install electrical components, and the drain hole is set at the bottom of the shell, in the event of water leakage or other reasons causing water to enter the interior, the water will flow to the bottom area of ​​the shell under the action of gravity. More importantly, the water can be guided to the drain hole quickly by the inclined guide plate. The drain hole is a straight-outlet structure, so that the water inside the shell can be discharged quickly and in a timely manner, reducing or avoiding the occurrence of excessive water level inside the shell submerging electrical components, thereby improving the safety and reliability of the instantaneous water heater.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention 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 by the present invention.

Claims

1. A fast-heating water heater, comprising an inlet pipe, an outlet pipe, a power supply board, a display and control board, and an electric heater, wherein the inlet pipe and the outlet pipe are respectively connected to the electric heater, and the power supply board, the display and control board, and the electric heater are electrically connected to each other, characterized in that, This also includes the casing for instant water heaters; The outer casing of the instantaneous water heater includes: The housing has an open front, an electrical installation area at the top, and a drainage hole at the bottom. A flow guide plate is disposed in the housing and is arranged at an angle. A first end of the flow guide plate extends to the side wall of the housing, and a second end of the flow guide plate extends to one side of the drain hole. The first end of the flow guide plate is higher than the second end of the flow guide plate. The flow guide plate includes multiple plates arranged sequentially. The height of the plates gradually decreases along the side wall of the housing towards the drain hole. A front panel, wherein the front panel is disposed on the front side of the housing and forms a mounting cavity therebetween with the housing; The guide plate is located below the installation area; The power board, the display control board, and the electric heater are disposed in the outer casing of the instantaneous water heater; In addition, a mounting base is provided at the bottom of the housing, and the drain hole is located at the rear of the mounting base; a groove is formed on the back of the housing facing inward toward the mounting base, and the drain hole is opened on the side wall of the mounting base and communicates with the groove, and the groove is configured to leave space between itself and the wall.

2. The instantaneous water heater according to claim 1, characterized in that, The guide plates are arranged on both sides of the drainage hole.

3. The instantaneous water heater according to claim 1, characterized in that, The drain hole is located near the back of the housing.

4. The instantaneous water heater according to claim 1, characterized in that, A drainage groove is formed between the mounting base and the lower end of the guide plate.

5. The instantaneous water heater according to claim 4, characterized in that, The longitudinal section of the drainage channel has a V-shaped structure.

6. The instantaneous water heater according to claim 1, characterized in that, The electric heater and the power supply board are arranged side by side in the mounting area of ​​the casing of the instantaneous water heater. The display control panel is located below the electric heater and the power supply board, and is positioned above and in front of the drain hole in the casing of the instantaneous water heater.

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