Instant electric water heater with warm air function

Abstract

The utility model relates to the field of water heaters, in particular to an instant electric water heater with a warm air function, which comprises a casing, a heating element, an air supply device, a heating device and a circuit module. Air flow is guided from the air inlet to the heating element through the air supply device to be heated and then discharged from the air outlet, warm air output is achieved, meanwhile, the heating device is provided with a heating cavity, a water inlet assembly and a water outlet assembly and used for heating water flow, and the circuit module is electrically connected with the heating element, the air supply device and the heating device. The air outlet is formed in the upper end of the shell, and a waterproof structure is designed, so that hot air is effectively prevented from directly blowing a user, and the use experience is improved; the inner blocking part and the outer blocking part in the waterproof structure form a water blocking channel to prevent condensation water from flowing back, the back is provided with an anti-overflow drainage hole, safety is further improved, and the instant hot water supply and warm air heating functions are integrated, so that the instant hot water supply and warm air heating device has the advantages of being efficient, safe and comfortable.

Description

Technical Field

[0001] This utility model belongs to the field of electric water heater technology, specifically an instant electric water heater with a warm air function. Background Technology

[0002] Instantaneous electric water heaters are fast-heating water devices, widely popular for their quick water output and ease of use. In recent years, a type of instantaneous electric water heater with a built-in warm air function has appeared on the market. This product uses a heating element and an air supply device inside the casing, with an air inlet and outlet on the casing. The air supply device guides the airflow from the air inlet to the heating element, where it is heated and then discharged from the air outlet, thus outputting warm air.

[0003] However, existing instantaneous electric water heaters with heating functions have a significant technical problem: their air outlets are usually located on the front, sides, or bottom of the casing. This design means that hot air can easily blow directly onto the user during use, especially in winter when heating, which may cause discomfort or even burns. Furthermore, during showering, water is more likely to splash into the water heater, potentially causing a short circuit. Therefore, optimizing the air outlet direction of instantaneous electric water heaters with heating functions is particularly important. Utility Model Content

[0004] The purpose of this invention is to overcome the problem that hot air from existing instant electric water heaters with heating function tends to blow directly onto the user during use, and to provide an instant electric water heater that solves the above problem by adjusting the air outlet to the upper part of the casing.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An instantaneous electric water heater with a warm air function includes a shell, a heating element, an air supply device, a heating device, and a circuit module disposed within the shell. The upper end of the shell has an air outlet, and the rear side has an air inlet. The heating element has an airflow channel for airflow to pass through. The air supply device guides the airflow from the air inlet to the heating element for heating, and then discharges it from the air outlet. The heating device is equipped with a heating chamber, and a water inlet assembly and a water outlet assembly connected to the heating chamber. The heating chamber is configured to heat the water flow when water flows through it. The circuit module is electrically connected to the heating element, the air supply device, and the heating device.

[0007] Compared with the prior art, this utility model avoids the problem of hot air blowing directly to the user in the traditional design by moving the air outlet to the upper end of the housing, thereby improving the comfort of use. At the same time, since the air outlet is set at the upper end of the housing, the hot air will fall after being blown out, thereby driving the thermal circulation effect of the space.

[0008] Furthermore, the air outlet is constructed with a waterproof structure. This waterproof structure includes several spaced-apart outer blocking portions and several spaced-apart inner blocking portions located below the outer blocking portions. The inner blocking portions are positioned between adjacent outer blocking portions, forming a hot air outlet between the edges of adjacent outer blocking portions and a hot air inlet between the edges of adjacent inner blocking portions. The channel between the hot air inlet and the hot air outlet forms a water-blocking channel. This design effectively prevents moisture from entering the housing, avoids short circuits, and extends the product's lifespan.

[0009] Furthermore, the outer blocking part is configured as an arc-shaped structure with the center rising upwards, and the inner blocking part is configured as an arc-shaped structure with the center concave downwards. This design can guide the hot air to be output smoothly through the arc-shaped structure formed by the inner blocking part, reduce wind resistance, and improve the output efficiency of warm air. On the other hand, the arc-shaped structure of the outer blocking part can guide the condensate water to the concave groove formed by the inner blocking part, preventing the condensate water from flowing directly into the housing and avoiding corrosion damage to the components.

[0010] Furthermore, an air outlet cover is installed at the upper end of the housing, the air outlet cover is constructed with an air outlet channel forming the air outlet at its upper end, the inner blocking part is integrally formed in the air outlet, the air outlet is detachably embedded with an air outlet cover, and the inner side of the air outlet cover is constructed with a plurality of spaced outer blocking parts. The above-mentioned arrangement makes the air outlet structure more modular, which is convenient for assembly, disassembly, cleaning and maintenance.

[0011] Furthermore, at least a portion of the outer blocking portion has a connecting post at its bottom, and a connecting piece is connected between two adjacent inner blocking portions corresponding to the connecting post. The air outlet cover is detachably connected to the air outlet cover through the connecting post and the connecting piece. This structural design makes the air outlet cover installation more stable and reliable, and also facilitates disassembly and maintenance.

[0012] Furthermore, a mounting cover is detachably connected to the side of the air outlet shroud away from the air outlet. The mounting cover has a mounting cavity communicating with the air outlet channel, and the heating element is installed in the mounting cavity. This design optimizes the airflow path, directing the airflow towards the heating element, making the hot air output more efficient, and facilitating the maintenance and replacement of the heating element.

[0013] Furthermore, the air supply device includes an air supply hood, which has an air supply channel communicating with the assembly cavity. An impeller is disposed within the air supply channel, and an airflow inlet penetrating the front side of the air supply hood is located at the impeller. This design improves air supply efficiency and ensures that the airflow is directed towards the assembly cavity, thereby enhancing the warm air output performance.

[0014] Furthermore, the rear side of the housing has a recessed air intake channel that extends forward. The lower end of the air intake channel penetrates the surface of the housing to form an air inlet, and the upper end forms the air inlet. This design, by placing the air inlet on the rear side of the housing, i.e., the back of the electric water heater, facing the wall during installation, makes it less likely for the output hot air to be re-drawn in, avoiding the airflow short-circuiting problem that may exist in traditional designs, improving heat exchange efficiency, and the air inlet facing the wall further enhances the waterproof effect.

[0015] Furthermore, the rear side of the housing has air guide surfaces that curve forward and extend into the housing on both sides of the air inlet. An air guide channel communicating with the air inlet is formed between the two air guide surfaces. An air inlet window communicating with the air guide channel is opened on the air guide surface facing the air outlet. The air supply device is located adjacent to the air inlet window. This design makes the airflow more rational, reduces turbulence loss, improves thermal efficiency, and avoids the accumulation of condensate.

[0016] Furthermore, the air inlet is equipped with a temperature sensor electrically connected to the circuit module. This design makes the warm air output more intelligent, automatically adjusting according to actual needs and improving user comfort. Attached Figure Description

[0017] Figure 1 and Figure 2 A 3D view of an instant electric water heater;

[0018] Figure 3 This is an exploded view of an instant electric water heater.

[0019] Figure 4 This is an exploded view of the internal components of an instant electric water heater.

[0020] Figure 5 and Figure 6 This is a cross-sectional view of an instant electric water heater. Detailed Implementation

[0021] The following describes a preferred embodiment of the present invention in conjunction with the accompanying drawings.

[0022] See Figures 1 to 5This embodiment provides an instant electric water heater with a warm air function, comprising a housing 1, a heating element 22 disposed within the housing 1, an air supply device 3, a heating device 4, and a circuit module 5. The housing 1 has an air outlet 11 at its upper end and an air inlet 12 at its rear. The heating element 22 has an airflow channel 21 for airflow. In some specific embodiments, the heating element is a PTC heating element. The air supply device 3 guides the airflow from the air inlet 12 to the heating element 22 for heating, and then discharges it from the air outlet 11. The heating device 4 has a heating chamber 431, and an inlet assembly 41 and an outlet assembly 42 connecting the heating chamber 431. The heating chamber 431 is configured to heat the water flow as it passes through. The circuit module 5 is electrically connected to the heating element 22, the air supply device 3, and the heating device 4. The upper end of the housing 1 refers to the upper end of the electric water heater after it is installed on a reference surface such as a wall, i.e., the upper end in actual use.

[0023] See Figures 3 to 5 The heating device 4 includes a heating container 43, a heating chamber 431 formed in the heating container 43, and a water inlet 101 and a water outlet 102 constructed at the lower end of the housing 1. The water inlet assembly 41 and the water outlet assembly 42 include pipes connected to the corresponding water inlet 101 and water outlet 102. Water flows in from the water inlet 101, is heated when it flows through the heating container 43 through the corresponding pipe, and is output from the water outlet 102 through the corresponding pipe. The water inlet assembly 41 is equipped with a pump body to promote the flow of water into the heating chamber 431.

[0024] See Figure 2 The rear side of the housing 1 has a recessed air inlet channel 13. The lower end of the air inlet channel 13 penetrates the surface of the housing 1 to form an air inlet 131, and the upper end has an air inlet 12. This design, by placing the air inlet 12 on the rear side of the housing 1, i.e., the back of the electric water heater, facing the wall during installation, makes it less likely for the output hot air to be re-drawn in, avoiding the airflow short-circuiting problem that may exist in traditional designs, improving heat exchange efficiency, and the air inlet 12 facing the wall further improves the waterproof effect.

[0025] See Figure 2 , Figure 3 and Figure 6The rear side of the housing 1 has air guide surfaces 14 that curve forward and extend into the interior of the housing 1 on both sides of the air inlet 12. An air guide channel 141 communicating with the air inlet 12 is formed between the two air guide surfaces 14. An air inlet window 142 communicating with the air guide channel 141 is opened on the air guide surface 14 facing the air outlet 11. The air supply device 3 is located adjacent to the air inlet window 142. This design makes the airflow more rational, reduces turbulence loss, improves thermal efficiency, and avoids the accumulation of condensate.

[0026] See Figure 2 In order to improve the strength of the air guide surfaces 14 on both sides, a number of reinforcing ribs 143 are arranged at intervals between the air guide surfaces 14 on both sides.

[0027] See Figure 2 The air inlet 12 is equipped with a temperature sensor 7 electrically connected to the circuit module 5. This design makes the warm air output more intelligent, automatically adjusting according to actual needs and improving user comfort. The temperature sensor 7 can be connected to the reinforcing rib 143.

[0028] See Figures 2 to 5 The air outlet 11 is constructed with a waterproof structure. This waterproof structure includes several spaced-apart outer blocking portions 61 and several spaced-apart inner blocking portions 62 located below the outer blocking portions 61. Each inner blocking portion 62 is positioned between two adjacent outer blocking portions 61. A hot air outlet 63 is formed between the edges of two adjacent outer blocking portions 61, and a hot air inlet 64 is formed between the edges of two adjacent inner blocking portions 62. The channel between the hot air inlet 64 and the hot air outlet 63 forms a water-blocking channel 65. This design effectively prevents moisture from entering the housing 1, avoids short circuits, and extends the product's service life.

[0029] See Figure 5 The outer blocking part 61 is configured as an arc-shaped structure with a raised center, and the inner blocking part 62 is configured as an arc-shaped structure with a recessed center. The arc-shaped structure of the inner blocking part 62 forms a concave groove 621 extending downwards on its upper side. This design, on the one hand, guides hot air smoothly outwards through the arc-shaped structure formed by the inner blocking part 62, reducing wind resistance and improving warm air output efficiency; on the other hand, the arc-shaped structure of the outer blocking part 61 guides condensate into the concave groove 621 formed by the inner blocking part 62, preventing condensate from directly flowing into the housing 1 and avoiding corrosion damage to the components. See also... Figures 3 to 5The upper end of the housing 1 is provided with an air outlet hood 6. The air outlet hood 6 is constructed with an air outlet channel 60 forming the air outlet 11 at its upper end. The inner blocking part 62 is integrally formed in the air outlet 11. The air outlet 11 is detachably embedded with an air outlet cover 66. The inner side of the air outlet cover 66 is constructed with a plurality of spaced outer blocking parts 61. The above arrangement makes the air outlet structure more modular, which is convenient for assembly, disassembly, cleaning and maintenance.

[0030] See Figure 2 and Figure 6 To ensure timely drainage of liquid accumulated in the concave groove 621, the side of the exhaust hood 6 is provided with an overflow drain hole 69 communicating with the concave groove 621. By providing the overflow drain hole 69, liquid accumulated in the concave groove 621 can be drained promptly, preventing excessive overflow. Preferably, the overflow drain hole 69 is located near the bottom of the concave groove 621 in the exhaust hood 6, further accelerating liquid drainage. Preferably, the bottom surface of the concave groove 621 is configured such that the end opposite to the overflow drain hole 69 is higher than the slope near the overflow drain hole 69.

[0031] See Figure 5 At least a portion of the outer blocking portion 61 has a connecting post 67 at its bottom. A connecting piece 68 connects two adjacent inner blocking portions 62 corresponding to the connecting post 67. The air outlet cover 66 is detachably connected to the air outlet shroud 6 via the connecting post 67 and the connecting piece 68. This structural design makes the air outlet cover 66 more securely and reliably installed, while also facilitating disassembly and maintenance. The connecting piece 68 and the connecting post 67 can be detachably connected via screws.

[0032] See Figures 3 to 5 The air outlet cover 6 has a detachable mounting cover 2 on the side away from the air outlet 11. The mounting cover 2 has a mounting cavity 20 communicating with the air outlet channel 60, and the heating element 22 is installed in the mounting cavity 20. This design optimizes the airflow path, directing the airflow to the heating element 22, making the hot air output more efficient, and facilitating the maintenance and replacement of the heating element 22.

[0033] See Figures 3 to 6 The air supply device 3 includes an air supply hood 31 disposed adjacent to the air inlet window 142. The air supply hood 31 has an air supply channel 30 communicating with the assembly cavity 20. An impeller 32 is disposed within the air supply channel 30, and an airflow inlet 33 penetrating the front side of the air supply hood 31 is constructed at the impeller 32. This design improves air supply efficiency and ensures that the airflow flows directionally to the assembly cavity 20, thereby enhancing the warm air output performance. Figure 6As shown, when the impeller 32 rotates, airflow flows from the air inlet 12 into the air guide channel 141, and from the air inlet window 142 through the air inlet 33 into the air supply channel 30, then flows to the heating element 22, passes through the airflow channel 21 for heating, and finally flows into the air outlet channel 60. Figure 5 As shown, hot air is output from the air outlet 11 by passing through the hot air inlet 64, the water blocking channel 65 and the hot air outlet 63 in sequence.

[0034] The aforementioned air supply hood 31, assembly hood 2, and air outlet hood 6 are combined to form a hot air generation channel in which the air supply channel 30, assembly cavity 20, and air outlet channel 60 are sequentially connected. This ensures that the airflow is directed to the heating element 22 for heating and output, thereby improving heating efficiency and ensuring that the hot air can be output in a directional manner, thus improving air outlet efficiency.

[0035] Compared with existing technologies, this invention avoids the problem of hot air blowing directly onto the user in traditional designs by moving the air outlet 11 to the upper end of the housing 1, thereby improving user comfort. Simultaneously, because the air outlet 11 is located at the upper end of the housing 1, the hot air will descend after being blown out, thus promoting a thermal circulation effect in the space. An outer blocking part 61 and an inner blocking part 62 are also provided at the air outlet 11 to form a water-blocking channel 65, effectively preventing water vapor from flowing back into the circuit module 5, extending the service life of the equipment, and reducing safety hazards. Furthermore, the air inlet 12 is located on the rear side of the housing 1. Combined with the design of the air guide surface 14 and the air inlet window 142, the airflow path is optimized, making the airflow more rational. This not only effectively prevents water from entering and reduces the accumulation of condensate, but also reduces turbulence losses and improves thermal efficiency.

[0036] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. An instant electric water heater with a warm air function, characterized in that, The application relates to a heating device, which comprises a shell (1), a heating element (22) arranged in the shell (1), a blowing device (3), a heating device (4) and a circuit module (5), the upper end of the shell (1) is provided with an air outlet (11), the rear side is provided with an air inlet (12), the heating element (22) is provided with an airflow passage (21) for airflow, the blowing device (3) is used for guiding airflow from the air inlet (12) to the heating element (22) to realize heating and then discharging from the air outlet (11), the heating device (4) is provided with a heating cavity, a water inlet assembly (41) and a water outlet assembly (42) connected with the heating cavity (431), the heating cavity (431) is configured to heat water flow when the water flow passes through, and the circuit module (5) is electrically connected with the heating element (22), the blowing device (3) and the heating device (4) respectively.

2. The instant electric water heater according to claim 1, wherein The air outlet (11) is provided with a waterproof structure, the waterproof structure is provided with a plurality of spaced-apart outer blocking parts (61) and a plurality of spaced-apart inner blocking parts (62) arranged on the lower side of the outer blocking parts (61), the inner blocking parts (62) are arranged between two adjacent outer blocking parts (61), the edges of two adjacent outer blocking parts (61) form a hot air outlet (63), the edges of two adjacent inner blocking parts (62) form a hot air inlet (64), and a channel between the hot air inlet (64) and the hot air outlet (63) forms a water blocking channel (65).

3. The instant electric water heater according to claim 2, wherein The outer blocking part (61) is arranged in an arc-shaped structure with a middle part protruding upwards, and the inner blocking part (62) is arranged in an arc-shaped structure with a middle part recessed downwards.

4. The instant electric water heater according to claim 2, wherein The upper end of the shell (1) is provided with an air outlet cover (6), the air outlet cover (6) is provided with an air outlet channel (60) forming the air outlet (11) at the upper end, the inner blocking part (62) is integrally formed in the air outlet (11), and the air outlet (11) is detachably embedded with an air outlet cover (66), the inner side of the air outlet cover (66) is provided with the plurality of spaced-apart outer blocking parts (61).

5. The instant electric water heater according to claim 4, wherein The bottom of at least part of the outer blocking part (61) is provided with a connecting column (67), two adjacent inner blocking parts (62) corresponding to the connecting column (67) are connected with a joint piece (68), and the air outlet cover (66) is detachably connected with the air outlet cover (6) through the connecting column (67) and the joint piece (68). The upper side of the inner blocking part (62) is formed with a concave groove (621) extending downwards, and the side of the air outlet cover (6) is provided with a waterproof drain hole (69) communicating with the concave groove (621).

6. The instant electric water heater according to claim 4, wherein The side of the air outlet cover (6) away from the air outlet (11) is detachably connected with an assembly cover (2), the assembly cover (2) is provided with an assembly cavity (20) communicating with the air outlet channel (60), and the heating element (22) is arranged in the assembly cavity (20).

7. The instant electric water heater according to claim 6, wherein The air supply device (3) comprises an air supply cover (31) which is configured with an air supply channel (30) in communication with the assembly cavity (20), the air supply channel (30) is configured with a wind wheel (32), and the air flow inlet (33) penetrating the front side of the air supply cover (31) is configured at the wind wheel (32).

8. The instant electric water heater according to claim 1, wherein The rear side of the shell (1) is configured with a front recessed air inlet channel (13), the lower end of the air inlet channel (13) penetrates the surface of the shell (1) to form an air inlet (131), and the upper end is configured with the air inlet (12).

9. The instant electric water heater according to claim 8, wherein The rear side of the shell (1) is configured with a front curved air guide surface (14) extending to the inside of the shell (1) on both sides of the air inlet (12), the air guide surfaces (14) on both sides form an air guide channel (141) in communication with the air inlet (12), and the air guide surface (14) on one side of the air outlet (11) is provided with an air inlet window (142) in communication with the air guide channel (141), and the air supply device (3) is arranged on the adjacent side of the air inlet window (142).

10. The instant electric water heater according to claim 1, wherein The air inlet (12) is provided with a temperature sensor (7) electrically connected with the circuit module (5).

Images