CN201267412Y - Thick film heating device for instant heating type water dispenser - Google Patents

Abstract

The utility model provides a thick film heating device for instant hot water dispensers, which has a compact structure, is economical and practical, has a low manufacturing cost, and works stably. It is easy to operate, has high productivity, stable quality, is easy to use, and has reliable safety performance. The utility model includes a plastic substrate, the upper surface of the plastic substrate is provided with an inwardly concave S-shaped connected plastic water tank, a water inlet hole is provided on the short side end wall of the plastic substrate, a water outlet hole is provided on the other short side end wall of the plastic substrate, a stainless steel thick film heating body is provided on the inner concave cavity of the S-shaped plastic water tank on the plastic substrate, and a plastic pad is provided on the stainless steel thick film heating body. Since the metal thick film heating body of the utility model is in direct contact with water, the thermal efficiency is high, the time to boil the same amount of water is short, and the energy-saving effect is obvious; and hot water can be produced as soon as it is turned on, which greatly saves the heating time, and it can be used immediately after being pressed, which is easy and convenient to use.

Description

Thick film heating device for instant water dispenser

technical field

The utility model relates to an instant water dispenser, in particular to a heating device applied to the instant water dispenser.

Background technique

At present, heat-storage water dispensers have a heating liner, which usually heats the water in the liner for use. Most of the traditional water dispensers are equipped with a liner, which is used to heat and store hot water. This water dispenser generally uses a thermostat to control the temperature. When the water temperature reaches the set upper limit temperature, it stops heating, and when the water temperature drops to the set lower limit temperature, it is powered on again for heating. The traditional ordinary water dispenser needs to be turned on for more than 3 minutes before hot water can be produced. When heating, a large number of bubbles are generated and collapsed, and the noise is relatively loud. Steam will be generated in the heater, and the steam will be fed back into the water bucket, causing temperature change.

There is also an improved instant water dispenser, which can be heated as it is used. It is easy to use, safe and hygienic, and has no waste of electric energy. It has a wide application prospect in water dispensers. However, the original instant water dispenser uses electric heating tube heating or high-frequency heating, and there are still some deficiencies. In the electric heating tube heating method, in order to enhance the heat transfer effect and reduce the size of the heating body, the electric heating tube and The water pipe is made of aluminum die-casting technology, which makes the production cost larger, the thermal efficiency is not high, and it takes a long time to provide hot water with a high enough temperature, the water outlet speed is slow, and there are intermittent periods of water outlet, so the practicability is poor; Due to the high surface temperature of the electric heater, the temperature difference between it and the environment is large, and the heat emitted to the environment is large, so the energy consumption is large; the electric heater consumes more metal materials, and the heat capacity of the metal material is large, so the The electric heater has a large thermal inertia and the water heating speed is slow. A set of high-frequency power supply is required for high-frequency heating, which also has the problem of high cost, and also has the problem of high-frequency radiation polluting the environment.

Utility model content

Aiming at the problems existing in the prior art, the purpose of this utility model is to overcome the shortcomings of the above-mentioned prior art, and provide a thick-film heating device for an instant water dispenser with a compact structure, economical and practical, low manufacturing cost and stable operation , which is easy to operate, high in productivity, stable in quality, easy to use, and reliable in safety performance.

In order to achieve the above purpose, the structure of the thick film heating device for the instant hot water dispenser of the present invention adopts the following technical solutions:

A thick-film heating device for an instant water dispenser, comprising a plastic substrate, the upper surface of the plastic substrate is provided with an internally recessed S-shaped connected plastic water tank, and the short side end wall of the plastic substrate is provided with a water inlet hole. A water outlet hole is provided on the other end wall of the short side of the substrate, and a stainless steel thick film heating body is provided on the inner concave cavity of the S-shaped plastic water tank on the plastic substrate, and a plastic backing plate is arranged on the stainless steel thick film heating body.

Further, a second sealing rubber ring is provided in the inner concave cavity of the S-shaped plastic water tank on the plastic substrate, and a stainless steel thick-film heating body is arranged on the second sealing rubber ring, and the stainless steel thick-film heating body and the S-shaped plastic water tank A cavity with the height of the second sealing rubber ring is formed between them. The stainless steel thick film heating body is provided with the first sealing rubber ring, and the first sealing rubber ring is provided with a plastic backing plate. The heating circuit of the stainless steel thick film heating body Corresponding to the water track of the S-shaped plastic sink;

One end of the above-mentioned S-shaped plastic water tank is connected to the water inlet, and the other end of the S-shaped plastic water tank is connected to the water outlet. The inner concave cavity of the S-shaped plastic water tank on the plastic substrate is provided with a second sealing rubber ring. The second sealing rubber ring is a On the whole, there is a gap in the middle of the second sealing rubber ring, and the stainless steel thick film heating body is stuck in the gap in the middle of the second sealing rubber ring.

Compared with the traditional water dispenser, the utility model has the following advantages:

① Energy saving: Since the metal thick film heating element is in direct contact with water, the thermal efficiency is high, and the time to boil the same amount of water is short;

②. Time-saving: Ordinary water dispensers need to be turned on for more than 3 minutes before hot water can be produced, and this stainless steel thick film heater can produce hot water as soon as it is turned on due to direct heat transfer and pipeline design, through high-power design. Greatly save heating time;

③. Reduce waste: Due to the stainless steel thick film design, there is hot water as soon as it is turned on, so you can use as much hot water as you want, without any extra waste, while ordinary water dispensers have to wait for all the water in the water tank to boil Only when it is too late can it be drunk, too much is wasted;

④ Controllable water temperature: Due to the design of the water channel and the control of the power level, that is, the water flow, the outlet water temperature can be adjusted at will, and it can be used immediately by pressing the button, which is easy and convenient to use.

Description of drawings

Fig. 1 is a three-dimensional exploded schematic diagram of an embodiment of the utility model.

Detailed ways

In order to further understand the features, technical means, and specific objectives and functions of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The relevant structure of the utility model mainly includes the following parts (or devices): plastic substrate 1, plastic water tank 2, water inlet hole 3, water outlet hole 4, first sealing rubber ring 5, stainless steel thick film heating body 6, plastic backing plate 7 , the second sealing rubber ring 8.

The structural device is as shown in Figure 1. The utility model includes a plastic substrate 1. The upper surface of the plastic substrate 1 is provided with an inner concave S-shaped connected plastic water tank 2. The short side end wall of the plastic substrate 1 is provided with a water inlet 3. A water outlet hole 4 is provided on the other end wall of the short side of the plastic substrate 1. One end of the S-shaped plastic water tank 2 is connected to the water inlet hole 3, and the other end of the S-shaped plastic water tank 2 is connected to the water outlet hole 4. The S-shaped plastic water tank 2 on the plastic substrate 1 A stainless steel thick film heating body 6 is provided on the inner concave cavity.

The inner concave cavity of the S-shaped plastic water tank 2 on the plastic substrate 1 is provided with a second sealing rubber ring 8, and the second sealing rubber ring 8 is provided with a stainless steel thick film heating body 6, and the stainless steel thick film heating body 6 and the S-shaped plastic Between the water tank 2, there are 8 cavities with the height of the second sealing rubber ring. The stainless steel thick film heating body 6 is provided with a first sealing rubber ring 5, and the first sealing rubber ring 5 is provided with a plastic backing plate 7. After the water inlet hole 3 is opened and the water flows into the plastic water tank 2, the stainless steel thick film heating body 6 is energized for heating. Finally, it flows out from the outlet hole 4, and the plastic backing plate 7 presses the stainless steel thick film heating body 6 tightly on the plastic substrate 1 through the first sealing rubber ring 5 and the second sealing rubber ring 8, the first sealing rubber ring 5, the second sealing rubber ring 8 Rubber ring 8 is sealed between the stainless steel thick film heating body 6 and the plastic water tank 2 to prevent water leakage.

Since the stainless steel thick film heating body 6 and the S-shaped plastic water tank 2 are separated and sealed by a second sealing rubber ring 8, a second sealing rubber ring 8 is formed between the stainless steel thick film heating body 6 and the S-shaped plastic water tank 2 The cavity at the height of the ring body, the cavity becomes a water flow space after the water inlet 3 is filled, so that the water flow is divided into two parts between the stainless steel thick film heating body 6 and the S-shaped plastic water tank 2: one part is attached to the stainless steel thick film The film heating body 6, because this part of the water flow is attached to the stainless steel thick film heating body 6, the water temperature rises quickly, but because it does not pass through the S-shaped plastic water tank 2, the water flow runs fast, and when it reaches the water outlet 4, it is 95 degrees The above hot water; the other part is far away from the stainless steel thick film heating body 6, and walks along the S-shaped plastic water tank 2. The water flow is relatively slow, but the heating time is long. When it reaches the water outlet 4, it also reaches hot water above 95 degrees. .

The best implementation mode: a second sealing rubber ring 8 is provided in the inner concave cavity of the S-shaped plastic water tank 2 on the plastic substrate 1, the second sealing rubber ring 8 is a whole, and the middle of the second sealing rubber ring 8 is provided with Gap, the stainless steel thick film heating body 6 is stuck in the gap in the middle of the second sealing rubber ring 8, and now the sealing effect is better.

The positive effects of the utility model are as follows:

1. Direct heat transfer: use a combination of stainless steel metal and non-metallic composite materials as the base material to directly transfer heat to the water source;

2. A variety of water channel shape designs: the thick film heating circuit corresponds to the track of the water channel;

3. Automatically adjust water temperature and water flow: control the water flow and water temperature through electronic circuits;

4. Instant heating: multi-channel thick film circuit is connected with the circuit, and hot water will come out as soon as the switch of the water dispenser is turned on;

5. High insulation strength: can withstand 3750V high-strength insulation;

6. High thermal efficiency: the thermal efficiency is as high as 95%.

The above-mentioned embodiments are only used to illustrate the utility model for convenience, and are not intended to limit the utility model in any form. Anyone with ordinary knowledge in the technical field, if within the scope of the technical characteristics of the utility model , Equivalent embodiments made with partial changes or modifications using the technical content disclosed in the utility model, and without departing from the technical features of the utility model, all still fall within the scope of the utility model's technical features.

Claims (5)

1. A thick-film heating device for an instant water dispenser, comprising: a plastic substrate (1), characterized in that: the upper surface of the plastic substrate (1) is provided with an internally recessed S-shaped connected plastic water tank ( 2), a water inlet hole (3) is provided on the short side end wall of the plastic substrate (1), a water outlet hole (4) is provided on the other end wall of the short side of the plastic substrate (1), and the plastic substrate (1) is provided with a water outlet hole (4). A stainless steel thick-film heating body (6) is arranged on the inner concave cavity of the S-shaped plastic water tank (2), and a plastic backing plate (7) is arranged on the stainless steel thick-film heating body (6). 2. The thick-film heating device for an instant water dispenser according to claim 1, characterized in that: one end of the S-shaped plastic water tank (2) is connected to the water inlet hole (3), and the other end of the S-shaped plastic water tank (2) is One end communicates with the water outlet hole (4). 3. The thick-film heating device for an instant water dispenser according to claim 1, characterized in that a second sealing rubber is provided in the inner concave cavity of the S-shaped plastic water tank (2) on the plastic substrate (1) ring (8), the second sealing rubber ring (8) is provided with a stainless steel thick film heating body (6), and a second sealing rubber ring is formed between the stainless steel thick film heating body (6) and the S-shaped plastic water tank (2) (8) The cavity at the height of the ring body, the stainless steel thick film heating body (6) is provided with a first sealing rubber ring (5), and the first sealing rubber ring (5) is provided with a plastic backing plate (7). 4. The thick-film heating device for an instant water dispenser according to claim 1, characterized in that a second seal is provided in the inner concave cavity of the S-shaped plastic water tank (2) on the plastic substrate (1). The rubber ring (8) is provided with a gap in the middle of the second sealing rubber ring (8), and the stainless steel thick film heating body (6) is stuck in the gap in the middle of the second sealing rubber ring (8). 5. The thick-film heating device for an instant water dispenser according to claim 1, characterized in that: the heating circuit of the stainless steel thick-film heating body (6) corresponds to the track of the water channel of the S-shaped plastic water tank (2) .