CN104697151B - Small quick water heater - Google Patents

Abstract

The small instant water heater with the structural form of the present invention has the advantages of simple structure, ingenious design and reasonable layout. Aiming at the defects of traditional instant water heaters that the water temperature is low when the water flow is large, and the water body is easy to boil when the water flow is small, it designs a structural device that can automatically adjust the calorific value, making the water temperature of the water heater more stable. It creatively uses the repulsion between the magnets, and decides whether to connect an additional resistor in parallel in the working circuit according to the size of the water flow, and controls the overall resistance value in the working circuit through the additional resistor, thereby changing the calorific value of the working resistor, which can realize It heats at a relatively low temperature when the water flow is small, and heats at a relatively high temperature when the water flow is large. No matter what the water flow is, it can provide warm water or hot water for the user. Therefore it can be said that it has possessed multiple advantages, and is particularly suitable for popularization and application in this field, and its market prospect is very broad.

Description

small instant water heater

technical field

The invention relates to a water heater, in particular to a small instant water heater.

Background technique

The temperature of the water coming out of the quick-heating faucets currently on the market depends on the time it takes for the water body to flow through the entire device of the water heater. The longer the time, the higher the water temperature. Therefore, once the water consumption is less and the flow rate is slower, the water body may boil in the water heater, causing various unsafe factors and affecting the life of the water heater. In order to avoid the above problems, in the design of the traditional instant water heater, its power will be reduced as much as possible to protect the safety of the water heater under the small water flow, but at the same time, this will cause the water temperature to be too low when the water flow is large, which cannot meet people's expectations of the water temperature of the water heater. usage requirements.

Contents of the invention

The present invention aims to solve the above-mentioned shortcomings in the prior art, and proposes a small instant water heater with simple structure, ingenious design, and the ability to automatically adjust the heating effect according to the size of the water flow.

The technical solution of the present invention is: a small instant water heater, including a heating device 1, a working resistance R is arranged in the inner cavity of the heating device 1, and a water outlet pipe 2 is connected to the heating device 1, and the feature is that a The auxiliary resistor R1 is connected in series with the working resistor R, the heating device 1 communicates with the transition chamber 4 through the water pipe 3, the transition chamber 4 communicates with the water inlet chamber 6 through the opening 5, and the water inlet chamber 6 is provided with a water inlet pipe 7. A piston 8 is matched in the water inlet chamber 6, and a first magnet 9 is arranged on the piston 8 away from the water inlet pipe 7, and an air hole is provided on the upper end of the side wall of the water inlet chamber 6. The direction of the water pipe 7 is connected with a switch housing 10, and the switch housing 10 is slidably connected with a conductor floating piece 11 through a slideway. The conductor floating piece 11 is provided with a second magnet 12 on the side facing the water inlet pipe 7, and the first magnet 9 and the second magnet 12 repel each other, corresponding to the conductor floating piece 11 is provided with a first terminal post 13 and a second terminal post 14 which are both conductors, and in the direction that the conductor floating piece 11 is away from the water inlet pipe 7, there are also The spring 15 connected with the conductor floating piece 11 and the switch housing 10, and when the conductor floating piece 11 is in contact with the first terminal 13 and the second terminal 14, the conductor floating piece 11 is connected in parallel with the auxiliary resistor R1.

A resistance block 16 is arranged on the conductor floating piece 11 .

Compared with the prior art, the present invention has the following advantages:

The small instant water heater of this structural form has simple structure, ingenious design and reasonable layout. Aiming at the defects of traditional instant water heaters that the water temperature is low when the water flow is large, and the water body is easy to boil when the water flow is small, it designs a structure that can automatically adjust the calorific value, making the water temperature of the water heater more stable. It creatively uses the repulsion between the magnets to determine whether to connect an additional resistor in parallel in the working circuit according to the size of the water flow, and controls the overall resistance value in the working circuit through the additional resistor, thereby changing the calorific value of the working resistor. It can achieve relatively low-temperature heating when there is a small water flow, and relatively high-temperature heating when there is a large water flow. Regardless of the water flow, it can provide users with warm or hot water. Therefore it can be said that it has possessed multiple advantages, and is particularly suitable for popularization and application in this field, and its market prospect is very broad.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a cross-sectional view of the water inlet chamber and the switch housing part according to the embodiment of the present invention.

Fig. 3 is a circuit diagram of an embodiment of the present invention.

detailed description

The specific implementation manner of the present invention will be described below with reference to the accompanying drawings. As shown in Figure 1, Figure 2, and Figure 3: a small instant water heater includes a heating device 1 that directly heats the water body, and a working resistor R is arranged in the inner cavity of the heating device 1, and the working resistor R is energized to generate Heat, heat the water flowing through the inner cavity of the heating device 1, set an auxiliary resistor R1 in series with the working resistor R, this auxiliary resistor R1 is mainly used to change the resistance value in the entire circuit, and the heating device 1 is connected to a water outlet pipe 2. The heating device 1 communicates with the transition chamber 4 through the water pipe 3, and the transition chamber 4 communicates with the water inlet chamber 6 through the opening 5. The water inlet chamber 6 is provided with a water inlet pipe 7, and the above-mentioned opening 5 is arranged in the water inlet chamber 6. At the lowermost corner of the bottom, it is necessary to ensure that the opening 5 can be completely closed when the piston 8 falls to the bottom. A piston 8 matching the section of the water inlet chamber 6 is arranged in the water inlet chamber 6, and the piston 8 is far away from the water inlet pipe 7. A first magnet 9 is arranged on the top, and an air hole is also opened on the upper end of the side wall of the water inlet chamber 6. A switch housing 10 is connected to the water inlet chamber 6 away from the water inlet pipe 7, and a switch housing 10 is provided in the switch housing 10. The conductor floating piece 11 connected by the slideway, this conductor floating piece 11 can slide along the slideway, the conductor floating piece 11 is provided with the second magnet 12 towards the side of the water inlet pipe 7, and the above-mentioned first magnet 9 and the first The two magnets 12 repel each other, and corresponding to the conductor floating plate 11 are provided with a first terminal 13 and a second terminal 14 that are conductors, and a spring 15 is also provided on the direction that the conductor floating plate 11 is away from the water inlet pipe 7, The spring 15 is sandwiched between the conductor floating piece 11 and the switch housing 10, and when the conductor floating piece 11 is in contact with the first terminal 13 and the second terminal 14, the conductor floating piece 11 can be connected in parallel with the auxiliary resistor R1; In order to obtain a better effect, a conductor block 16 can also be added on the conductor floating plate 11;

And the above-mentioned conductor floating piece 11 and resistance block 16 are all made of non-magnetizable conductor material, because if the conductor floating piece 11 and resistance block 16 are made of magnetizable conductor material (such as iron), after a long time After working for a while, it will have certain magnetism, so after the conductor floating piece 11 and the resistance block 16 contact with the first terminal 13 and the second terminal 14, they may stick together and be inseparable, which affects the use effect.

The working process of the small instant water heater in the embodiment of the present invention is as follows: the water body enters the water inlet chamber 6 through the water inlet pipe 7, the piston 8 floats under the push of the water body, and when the opening 5 is exposed, the water body enters the transition chamber 4 through the opening 5, And enter the heating device 1 through the water pipe 3, and finally discharge through the outlet pipe 2. When the water body flows through the heating device 1, it absorbs the heat generated by the working resistance R to form warm water or hot water, so as to achieve the purpose of rapid heating;

When the water flow is large, the piston 8 is pushed and floated by the water body to a large extent. During the movement of the piston 8, since the first magnet 9 and the second magnet 12 repel each other, the movement of the piston 8 will cause the conductor floating piece 11 to move. Under the action of repulsive force, the conductor floating piece 11 gradually approaches the first terminal 13 and the second terminal 14 and finally contacts them (the spring 15 is compressed). At this time, the conductor floating piece 11 is connected in parallel with the auxiliary resistor R1 in the working circuit. At this time, the conductor floating piece 11 and the conductor block ₁₆ arranged thereon jointly form a resistor R2, and after the resistor R2 is connected in parallel with the auxiliary resistor R1, the resistance value of this part will change from R1 to R1'. have R1'= , so that the overall resistance value in the working circuit will decrease, and in the case of constant voltage, the current in the working circuit will increase, so the heat that can be generated by the working resistance R will also increase. The reason why an auxiliary resistor R1 is added in the working circuit is to reduce the overall resistance value in the working circuit after the resistor R2 is connected in parallel with the auxiliary resistor R1, thereby increasing the current in the working circuit, thereby increasing the value of the working resistance R. The generated heat, that is to say, when the water flow increases, the device can automatically increase the generated heat to ensure that a higher water temperature can still be maintained under the condition of a large water flow. Conductor blocks 16 with different resistances can be selected according to actual needs, so as to change the resistance of R2, and then change the resistance of R1' after R1 and R2 are connected in parallel, so as to obtain different heating enhancement effects.

After the water flow becomes smaller, under the action of the spring 15, the conductor floating piece 11 is pushed back to its original position, breaking away from the contact with the first terminal 13 and the second terminal 14, R2 no longer participates in the working circuit, and is applied to the working circuit. The current on the resistor R returns to the initial value.

Claims (2)

1. a kind of small quick water heater, including heater（1）, in heater（1）Inner chamber in be provided with operating resistance R, in heater（1）On be communicated with outlet pipe（2）, it is characterised in that：The one auxiliary resistance R1 and operating resistance R is set Series connection, the heater（1）By water pipe（3）With adapter cavity（4）Connection, adapter cavity（4）By opening（5）With intake antrum （6）Connection, intake antrum（6）On be provided with water inlet pipe（7）, in intake antrum（6）Interior matching is provided with piston（8）, piston（8）Far From water inlet pipe（7）Direction on be provided with the first magnet（9）, in intake antrum（6）The upper end of side side wall offers stomata, is entering Water cavity（6）Away from water inlet pipe（7）Direction on be connected with switch case（10）, switch case（10）It is interior to be slidably connected by slideway There is conductor floating piece（11）, conductor floating piece（11）Towards water inlet pipe（7）Side be provided with the second magnet（12）, and the first magnetic Iron（9）With the second magnet（12）Repel each other, with conductor floating piece（11）Corresponding is provided with the first binding post for being conductor （13）With the second binding post（14）, in conductor floating piece（11）Away from water inlet pipe（7）Direction on be additionally provided with and conductor float Piece（11）And switch case（10）The spring of connection（15）, and when conductor floating piece（11）With the first binding post（13）, second Binding post（14）During contact, conductor floating piece（11）It is in parallel with auxiliary resistance R1.

2. small quick water heater according to claim 1, it is characterised in that：Described conductor floating piece（11）Upper setting There is resistance bolck（16）.