CN108443534A - A kind of household energy storing electric water heater hot water mixing thermostat - Google Patents

Abstract

The invention is a hot water mixing thermostat for household energy storage electric water heaters, comprising a three-way water valve with two water inlets mixed with one water outlet, and the three-way water valve includes a water valve connected with two water inlets and one water outlet Body, the body of the water valve is provided with a spool that rotates to adjust the flow of two water inlets and one water outlet, the spool is provided with a spool shaft, and the spool shaft is connected to a disc-shaped switch. A section of continuous tooth die is provided on the circular arc of the disc switch, and the tooth die is matched with a threaded rod for transmission. One end of the threaded rod is connected with a transmission wheel, and the transmission wheel cooperates with a relay transmission wheel for transmission. Said relay transmission wheel cooperates with the rotating shaft of a motor to drive, and is used to drive the disc-shaped switch to rotate through the motor to adjust the flow of two water inlets and one water outlet. The structure of the invention can reduce water adjustment time, save water and electricity, improve use comfort, and have constant water output and continuous constant temperature during use.

Description

A household energy storage electric water heater hot water mixing thermostat

technical field

The invention relates to the technical field of energy storage electric water heaters, in particular to a hot water mixing thermostat for household energy storage electric water heaters.

Background technique

Existing energy storage electric water heaters usually only have energy storage constant temperature, but not outlet water mixing constant temperature. In order to obtain more hot water for use, energy storage electric water heaters are usually stored at high temperature during use, and manually adjusted during use The water mixing switch adjusts the water temperature of the outlet water, which is inconvenient to use and difficult to set temperature and temperature, and it is easy to waste water and electricity.

Existing energy storage electric water heaters have almost no water outlet constant temperature device, only a few mechanically controlled constant temperature devices, the control accuracy is not high and easy to be damaged, and some electronically controlled constant temperature devices have complex structures and high costs, and are not easy to popularize and use.

Contents of the invention

The purpose of the present invention is to overcome the problems existing in the prior art, and to provide a household energy storage electric water heater hot water mixing thermostat, which can obtain continuous constant temperature water that can be set, is convenient to use, improves the comfort of water experience, and saves Electricity and water consumption.

In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention is realized through the following technical solutions:

A hot water mixing thermostat for household energy storage electric water heaters, comprising a three-way water valve with two water inlets mixed with one water outlet, the three-way water valve includes a water valve body connected to two water inlets and one water outlet, the The body of the water valve is provided with a spool that rotates to adjust the flow of two water inlets and one water outlet. The spool is provided with a spool shaft, and the spool shaft is connected to a disc-shaped switch. The disc-shaped switch A section of continuous gear mold is provided on the circular arc of the gear mold, and the gear mold is coordinated with a threaded rod for transmission, and one end of the screw rod is connected with a transmission wheel, and the transmission wheel cooperates with a relay transmission wheel for transmission, and the relay The transmission wheel cooperates with the rotating shaft of a motor for transmission, and is used to drive the disc-shaped switch through the motor to rotate and adjust the flow of two water inlets and one water outlet.

Further, a first positioning protrusion and a second positioning protrusion are provided on the circular arc of the disc-shaped switch, and the first positioning protrusion corresponds to the first limit switch and the second limit switch provided on the water valve body. Cooperating with the position limit, the second positioning protrusion cooperates with the third limit switch correspondingly arranged on the water valve body to limit the position.

Further, the two water inlets are respectively a hot water inlet and a cold water inlet, a first temperature sensing element is arranged at the hot water inlet, and a second temperature sensing element is arranged at the water outlet, For temperature measurement.

Further, the first temperature-sensing element and the second temperature-sensing element are electrically connected to an electrical control unit for feeding back temperature signals at the hot water inlet and water outlet to the electrical control unit, and the electrical control unit is electrically connected to the electric motor , used to drive the motor to rotate according to the temperature signals at the hot water inlet and outlet.

Further, the first limit switch, the second limit switch and the third limit switch are electrically connected to the electrical control unit, and are used to feed back the position signal of the disc-shaped switch to the electrical control unit. The position signal of the switch controls the stopping of the motor.

Further, the electrical control unit is arranged in an operation panel, and the operation panel is provided with a start switch and a shutdown switch, which are respectively used for turning on and off the thermostat, and one side of the shutdown switch is provided with a first temperature adjustment The button and the second temperature adjustment button are respectively used to increase the temperature and lower the temperature, and the top of the first temperature adjustment button and the second temperature adjustment button is provided with a working status display screen, which is used to display the working status parameters of the thermostat .

The beneficial effects of the present invention are:

The household energy storage electric water heater hot water mixing thermostat of the present invention is an energy storage electric water heater hot water mixing thermostat added to the existing energy storage electric water heater, which can reduce water adjustment time, save water and electricity, improve use comfort, and increase water output during use. Constant, continuous constant temperature, simple structure, low cost, easy to use, high control precision, safe and reliable.

Description of drawings

Figure 1: a schematic diagram of the overall structure of a hot water mixing thermostat for a household energy storage electric water heater of the present invention;

Fig. 2 is a structural schematic diagram of the three-way water valve of the hot water mixing thermostat of the household energy storage electric water heater of the present invention;

Fig. 3 is a structural schematic diagram of the disc-shaped switch of the hot water mixing thermostat of the household energy storage electric water heater of the present invention;

Fig. 4 is a schematic diagram of the electrical control unit of the household energy storage electric water heater hot water mixing thermostat of the present invention;

Fig. 5: It is a schematic diagram of the mechanical transmission of the hot water mixing thermostat of the household energy storage electric water heater of the present invention.

Explanation of symbols in the figure: 1, disc-shaped switch, 1-1, first positioning protrusion, 1-2, second positioning protrusion, 2, hot water outlet, 3, water valve body, 4, valve core, 4- 1. Spool shaft, 5. Water inlet, 5-1. Hot water inlet, 5-2. Cold water inlet, 6. Tooth mold, 7. Screw rod, 7-1. Transmission wheel, 8. Relay drive Wheel, 9, motor, 10, bracket, 11-1, first limit switch, 11-2, second limit switch, 11-3, third limit switch, 12, electrical control unit, 12-1, Start switch, 12-2, shutdown switch, 12-3, first temperature adjustment button, 12-4, second temperature adjustment button, 12-5, working status display screen, 13-1, first temperature sensing element, 13 -2. The second temperature sensing element.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

Referring to Fig. 1, Fig. 2 and Fig. 5, a household energy storage electric water heater hot water mixing thermostat includes a three-way water valve with two water inlets 5 and one water outlet 2, and the three-way water valve includes a communication The water valve body 3 of two water inlets 5 and one water outlet 2, the water valve body 3 is provided with a spool 4 for rotating and adjusting the flow of two water inlets 5 and one water outlet 2, and the valve core 4 is provided with There is a spool shaft 4-1, and the spool shaft 4-1 is connected to a disc-shaped switch 1, and a section of continuous tooth mold 6 is arranged on the circular arc of the disc-shaped switch 1. In this embodiment, the circular A continuous tooth mold 6 with an angle of ≦90 degrees is manufactured on the circular arc of the disc switch 1, and the tooth mold 6 is coordinated with a screw rod 7 for transmission. One end of the screw rod 7 is connected to a transmission wheel 7-1, and the transmission wheel 7-1 Cooperate with a relay transmission wheel 8 for transmission, and said relay transmission wheel 8 cooperates with a rotating shaft of a motor 9 for transmission. In this embodiment, the motor 9 is arranged on a bracket 10 for driving by the motor 9 The disc-shaped switch 1 rotates to adjust the flows of two water inlets 5 and one water outlet 2 .

Referring to Fig. 3, a first positioning protrusion 1-1 and a second positioning protrusion 1-2 are provided on the circular arc of the disc-shaped switch 1, and the first positioning protrusion 1-1 is connected with the water valve body 3. The corresponding first limit switch 11-1 and the second limit switch 11-2 cooperate to limit the position, and the second positioning protrusion 1-2 and the third limit switch 11-3 correspondingly arranged on the water valve body 3 Cooperate with the limit, the combination limits the rotation range of the spool 4.

Referring to Figure 2, the two water inlets 5 are respectively a hot water inlet 5-1 and a cold water inlet 5-2, and a first temperature sensing element 13-1 is provided at the hot water inlet 5-1. 1. A second temperature-sensing element 13-2 is provided at the water outlet 2 for temperature measurement. In this embodiment, the spool 4 is similar to a common three-way water valve, and the spool 4 and the two water inlets 5 are respectively The positions corresponding to the hot water inlet 5-1 and the cold water inlet 5-2 on the water valve body 3 are: when the hot water inlet 5-1 is fully opened, the cold water inlet 5-2 is correspondingly fully closed, and vice versa, the valve When the core 4 rotates in the forward direction, the hot water inlet 5-1 is gradually opened while the cold water inlet 5-2 is gradually closed. When the valve core 4 rotates in the reverse direction, the opposite is true. The core 4 and the water valve body 3 do not need to cooperate too tightly, so as to reduce the resistance and facilitate the rotation. The water outlet 2 on the water valve body 3 is always in a fully open state to the water outlet channel of the valve core 4 within the rotation range of the valve core 4. The valve core 4 The rotation range is set to ≦90 degrees, and the water valve body 3 is also arranged on the support 10 at the same time. The valve body 3 is usually made of metal material, and the valve core 4 can be made of ceramic material.

Connect the hot water inlet 5-1 on the hot water mixing thermostat of the household energy storage electric water heater to the hot water outlet pipe on the energy storage electric water heater, and connect the cold water inlet 5-2 to the cold water inlet on the electric water heater through a three-way water valve. Water pipe, connect the water outlet 2 on the hot water mixing thermostat of the household energy storage electric water heater to the hot water pipe of water, fix the hot water mixing thermostat of the household energy storage electric water heater The water heater is combined and manufactured, connected to the power supply of the household energy storage electric water heater, the hot water mixing thermostat, and the constant temperature, for standby, and the electrical control unit 12 is a low-voltage power supply.

2 and 4, the first temperature sensing element 13-1 and the second temperature sensing element 13-2 are electrically connected to an electrical control unit 12, and are used to feed back the hot water inlet 5- to the electrical control unit 12. 1 and the temperature signal at the water outlet 2, the electrical control unit 12 is electrically connected to the motor 9, and is used to drive the rotation of the motor 9 according to the temperature signals at the hot water inlet 5-1 and the water outlet 2, and the motor 9 is a DC motor , the electrical control unit 12 provides pulse power supply, the output shaft of the motor 9 and the relay transmission wheel 8, the transmission wheel 7-1 transmission output to the screw mandrel 7 at a suitable speed, under the condition of guaranteed torque, each pulse of the motor 9 It is more suitable to work to form the screw mandrel 7 to make one revolution, and the pulse power supply is a controllable continuous pulse.

The first limit switch 11-1, the second limit switch 11-2 and the third limit switch 11-3 are electrically connected to the electrical control unit 12 for feeding back the position of the disc-shaped switch 1 to the electrical control unit 12 signal, the electrical control unit 12 controls the stopping of the motor 9 according to the position signal of the disc switch 1 .

With reference to shown in Figure 4, described electrical appliance control unit 12 is arranged in an operation panel, and described operation panel is provided with startup switch 12-1 and shutdown switch 12-2, is respectively used for the switch machine of thermostat, and described shutdown One side of the switch 12-2 is provided with a first temperature adjustment button 12-3 and a second temperature adjustment button 12-4, which are respectively used to adjust the temperature up and down. A working status display screen 12-5 is arranged above the first temperature adjusting button 12-3 and the second temperature adjusting button 12-4, for displaying the working status parameters of the thermostat.

Principle of the invention

When the present invention is in use, first, before the start of use, the static position of the valve core 4 is that the hot water inlet 5-1 is in a fully open state, the power is turned on, the water temperature is set, the switch 12-1 is started, and the electrical control unit 12 works , the drive motor 9 initially runs, the spool 4 rotates, and the operation is limited by the third limit switch 11-3 to the half-open position of the hot water inlet 5-1 and the cold water inlet 5-2. At this time, the first sensor The temperature element 13-1 is in working state, and the second temperature sensing element 13-2 is not working;

Set the water temperature. When the water starts to be used and the hot water of the energy storage electric water heater passes through the hot water inlet 5-1, when the water temperature measured by the first temperature sensing element 13-1 reaches 30 to 35 degrees, the electrical control unit starts the second sensor. The temperature element 13-2 starts to work. When the second temperature sensing element 13-2 detects that the water temperature of the water outlet 2 is higher than the set water temperature, the electrical control unit drives the motor 9 to run forward, the valve core 4 rotates, and the hot water inlet 5- 1 The water output decreases, and the water output of the cold water inlet 5-2 increases. When the second temperature sensing element 13-2 detects that the water temperature of the outlet 2 is lower than the set water temperature, the water output of the hot water inlet 5-1 increases, and the cold water inlet 5-1 increases. 5-2 Reduced water output;

When the water is stopped and the household electric water heater hot water mixer shutdown switch 12-2 is closed, the electrical control unit 12 outputs the working power to drive the motor 9 to drive the water valve disc-shaped switch 1 to rotate, which is limited by the first limit switch 11-1 The three-way water valve stops at the fully open position of the hot water water inlet 5-1, and enters the shutdown state.

After starting with water and starting with water again after the interval, there will be a short non-set temperature difference in the outlet water.

In addition, it should be noted that, unless otherwise specified or pointed out, the terms “first”, “second”, “third” and other descriptions in the specification are only used to distinguish each component, element, step, etc. in the specification, and It is not used to represent the logical relationship or sequential relationship between various components, elements, and steps.

It can be understood by those skilled in the art that the relevant control unit involved in the present invention and the functions realized therefor are conventional computer software programs in the prior art carried on the improved hardware and its constituted devices, devices or systems Or related agreements can be realized, rather than improving computer software programs or related agreements in the prior art. For example, an improved computer hardware system can still realize specific functions of the hardware system by loading an existing software operating system. Therefore, it can be understood that the innovation of the present invention lies in the improvement of the hardware in the prior art and its connection and combination relationship, rather than just the improvement of the software or protocol carried in the hardware to realize the relevant functions.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. a kind of household energy storing electric water heater hot water mixing thermostat, including two-way water inlet（5）Mix water outlet all the way（2）'s T-way water valve, the T-way water valve include connection two-way water inlet（5）Water outlet all the way（2）Water valve body（3）, the water valve Body（3）It is interior to be equipped with rotation adjusting two-way water inlet（5）Water outlet all the way（2）The spool of flow（4）, which is characterized in that it is described Spool（4）It is equipped with poppet shaft（4-1）, the poppet shaft（4-1）Connect disc switch（1）, the disc switch（1） Circumference arc be equipped with one section of continuous tooth mould（6）, the tooth mould（6）With a lead screw（7）Cooperation transmission, the lead screw（7）'s One end is connected with driving wheel（7-1）, the driving wheel（7-1）With a relaying driving wheel（8）Cooperation transmission, the relaying driving wheel （8）With a motor（9）Shaft cooperation transmission, for passing through motor（9）Drive disc switch（1）Rotation adjusts two-way Water inlet（5）Water outlet all the way（2）Flow.

2. household energy storing electric water heater hot water mixing thermostat according to claim 1, which is characterized in that the disc Switch（1）Circumference arc to be equipped with the first positioning prominent（1-1）It is prominent with the second positioning（1-2）, first positioning is prominent（1-1）With water Valve body（3）On the first limit switch for being correspondingly arranged（11-1）With the second limit switch（11-2）Cooperation limit, described second is fixed Position is prominent（1-2）With water valve body（3）On the third limit switch that is correspondingly arranged（11-3）Cooperation limit.

3. household energy storing electric water heater hot water mixing thermostat according to claim 2, which is characterized in that described in two-way into The mouth of a river（5）Respectively water inlet of hot water（5-1）And cold water inlet（5-2）, in the water inlet of hot water（5-1）Place is equipped with first Temperature-sensing element（13-1）, in the water outlet（2）Place is equipped with the second temperature-sensing element（13-2）, it is used for thermometric.

4. household energy storing electric water heater hot water mixing thermostat according to claim 3, which is characterized in that first sense Warm element（13-1）With the second temperature-sensing element（13-2）It is electrically connected an electrical control unit（12）, it is used for electrical control unit （12）Feed back water inlet of hot water（5-1）And water outlet（2）The temperature signal at place, the electrical control unit（12）It is electrically connected electronic Machine（9）, for according to water inlet of hot water（5-1）And water outlet（2）The temperature signal drive motor at place（9）Rotation.

5. household energy storing electric water heater hot water mixing thermostat according to claim 4, which is characterized in that first limit Bit switch（11-1）, the second limit switch（11-2）With third limit switch（11-3）It is electrically connected electrical control unit（12）, use In to electrical control unit（12）Feed back disc switch（1）Position signal, electrical control unit（12）It is opened according to disc It closes（1）Position signal control motor（9）Stop.

6. household energy storing electric water heater hot water mixing thermostat according to claim 4 or 5, which is characterized in that the electricity Device control unit（12）It is set in an operation panel, the operation panel is equipped with starting switch（12-1）It is switched with shutdown （12-2）, it is respectively used to the switching on and shutting down of thermostat, the shutdown switch（12-2）Side be equipped with the first temperature adjustment buttons （12-3）With second temperature regulation button（12-4）, it is respectively used to that temperature is turned up and turns down temperature, the first temperature adjusting is pressed Button（12-3）With second temperature regulation button（12-4）Top be equipped with working condition display screen（12-5）, for showing thermostat Working status parameter.