Instant electric water heater

Abstract

A quick-heating electric water heater comprises a heating channel, an electric heating film arranged in the heating channel, an inlet connecting piece and an outlet connecting piece, the inlet connecting piece and the outlet connecting piece are arranged on the two sides of the electric heating film respectively, and the inlet connecting piece and the outlet connecting piece are connected with a water inlet pipe and a water outlet pipe respectively. The heating channel comprises a plurality of hollow aluminum plates arranged in parallel and a plurality of partition plates arranged perpendicular to the hollow aluminum plates, the partition plates divide the interiors of the hollow aluminum plates into a plurality of water conveying channels connected between the outlet connecting pieces in parallel, and the electric heating film is arranged in a heating area between the hollow aluminum plates. According to the device, the sheet-shaped electric heating film is fixed in the interlayer of the heating channel, heating is uniform, the device has a larger heat exchange area in unit volume, the heating efficiency is improved, meanwhile, the device has the excellent characteristics of high temperature resistance, good electrical conductivity, good thermal conductivity, stable property and the like, and stable high heating power can be provided for the electric water heater.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of life daily necessities field technology, specifically a kind of fast heating electric water heater. BACKGROUND

[0002] Electric water heater is widely used in industry, scientific research and household scenes, with the development of the times, the technical requirements of user for electric water heater are higher and higher.The existing electric water heater is mostly water storage type, water tank is used for water storage and heating pipe is arranged at the bottom of water tank, which has the advantages of large water output, stable water temperature and the like, but also has the problems of long heating time, large volume, high manufacturing and insulation cost and the like. SUMMARY

[0003] The utility model provides a kind of fast heating electric water heater to the structural complexity and the insufficient heating effect of prior art, sheet-shaped electric heating film is fixed in heating channel interlayer, heating is uniform and has greater heat exchange area under unit volume, improve heating efficiency while having high temperature resistance, good conductivity, good thermal conductivity and stable properties and the like excellent characteristics, can provide stable high heating power for electric water heater.

[0004] The utility model is realized through the following technical schemes:

[0005] The utility model relates to a kind of fast heating electric water heater, comprising: heating channel, electric heating film being arranged in heating channel and inlet and outlet connecting piece being arranged at its two sides, wherein: inlet and outlet connecting piece are connected with water inlet pipe and water outlet pipe respectively.

[0006] The heating channel includes: a plurality of parallel hollow aluminum plates and a plurality of vertical partition plates, wherein: the partition plates divide the hollow aluminum plates into a plurality of water conveying channels connected in parallel between the outlet connecting pieces, and the electric heating film is arranged in the heating area between the hollow aluminum plates.

[0007] The hollow aluminum plate and the partition plate are preferably an integrated structure made of casting or aluminum stretching, and only a sealing strip is used at the position of the inlet and outlet connecting pieces.Compared with welding and other sealing technologies, it can ensure good sealing in the flow channel, without the need for air tightness test, reducing the cost.

[0008] The electric heating film is a conductive film made of carbon composite material, which is fixed in the interlayer of the hollow aluminum plate after being connected with the copper electrode.The two sides of the electric heating film are in contact with and tightly fitted to the corresponding two sides of the hollow aluminum plate.

[0009] The electric heating film is a sheet structure, and the heating is uniform and has a larger heat exchange area under unit volume, improving the heating efficiency.

[0010] The inlet and outlet connecting piece is a hollow cover plate structure, one side of which is provided with a sleeve plate structure completely wrapping all water inlets or outlets of the heating channel, and the other side is provided with a threaded connecting structure for connecting with the inlet and outlet water pipes. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic view of the utility model;

[0012] Figure 2 It is a flow channel sectional view of the fast heating electric water heater with a series structure heating channel;

[0013] Figure 3 It is a schematic view of the fast heating electric water heater with a parallel structure heating channel;

[0014] Figure 4 It is a sectional view of the outlet connecting piece position of the fast heating electric water heater with a parallel structure heating channel;

[0015] In the drawing: electric heating film 1, heating channel 2, water inlet pipe 3, water outlet pipe 4, inlet and outlet connecting piece 5, sealing strip 6. DETAILED DESCRIPTION

[0016] As shown in the drawing, it is a fast heating electric water heater, which comprises a heating channel 2, an electric heating film 1 arranged in the heating channel 2 and inlet and outlet connecting pieces 5 arranged on both sides of the heating channel 2. Figure 1 As shown in the drawing,

[0017] ,The heating channel 2 comprises a plurality of hollow aluminum plates 201 arranged in parallel and a plurality of partition plates 202 arranged perpendicularly to the hollow aluminum plates 201, wherein the partition plates 202 divide the hollow aluminum plates 201 into a plurality of water conveying channels parallel to the outlet connecting pieces 5, and the electric heating film 1 is arranged in the heating area between the hollow aluminum plates 201. Figure 2 Figure 4 The electric heating film 1 is a conductive film made of carbon composite material, which is fixed in the interlayer of three hollow aluminum plates after being connected with copper electrodes, and the two sides of the electric heating film 1 are in contact with and tightly combined with the corresponding two sides of the hollow aluminum plates 201.

[0018] The inlet and outlet connecting piece 5 is a hollow cover plate structure, one side of which is provided with a sleeve plate structure 501 completely wrapping all water inlets or outlets of the heating channel 2, and the other side is provided with a threaded connecting structure 502 for connecting with the inlet and outlet water pipes.

[0019] The heating channel 2 is divided into two different structures of series and parallel:

[0020] As shown in the drawing,

[0021] As shown in the drawing, Figure 2As shown, the series structure heating channel has only one water delivery channel, which is formed by connecting the heads and tails of multiple U-shaped channels, and has only one water inlet and outlet;

[0022] As shown in the figure, the parallel structure heating channel has multiple independent water delivery channels, and each channel has an independent water inlet and outlet. Figure 4

[0023] The heating channel 2 and the inlet and outlet connectors 5 are externally provided with an outer shell for fixing, protecting the heating channel 2 and other components, and heat preservation.

[0024] Compared with the prior art, the high-temperature heating body of the device is wrapped in the middle of the flow channel, the surface temperature of the heater is low, the heat efficiency is higher, the heat capacity is smaller, and the heating speed is faster; in addition, the device has a simple structure and a lower cost.

[0025] The above specific embodiments can be adjusted in different ways by those skilled in the art without departing from the principles and purposes of the present application, the protection scope of the present application is subject to the claims and is not limited by the above specific embodiments, and each implementation scheme within the scope is subject to the constraints of the present application.​

Claims

1. A fast-heating electric water heater, characterized in that, The utility model relates to a kind of electric heating water heater, including: Heating channel, electric heating film arranged in heating channel and inlet and outlet connecting piece arranged in its both sides, wherein: inlet and outlet connecting piece are connected with inlet pipe and outlet pipe respectively; The electric heating film is made of carbon composite material, and is fixed in the interlayer of the hollow aluminum plate after being connected with copper electrode, and the two sides of the electric heating film are in contact with the corresponding two sides of the hollow aluminum plate and tightly combined; The inlet and outlet connecting piece is a hollow cover plate structure, one side of which is provided with a sleeve plate structure that completely covers all the water inlets or outlets of the heating channel, and the other side is provided with a threaded connection structure for connecting with the inlet and outlet pipes; The heating channel includes: a plurality of parallel hollow aluminum plates and a plurality of vertical partition plates, wherein: the partition plates divide the hollow aluminum plates into a plurality of water conveying channels parallel to the outlet connecting piece, and the electric heating film is arranged in the heating area between the hollow aluminum plates.

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