阅读说明：本技术 一种电子式恒热混水阀 (Electronic constant-heat water mixing valve ) 是由 王鑫 于 2021-10-09 设计创作，主要内容包括：本发明公开了一种电子式恒热混水阀,包括内部结构,内部结构包括集成电路板、水流流量传感器或者水压传感器、混合水温度传感器、冷水或热水伺服机和冷水或热水三角阀,水流流量传感器、混合水温度传感器分别与集成电路板连接,集成电路板与冷水或热水伺服机连接,冷水或热水伺服机与冷水或热水三角阀连接。本发明运用一种新型的反馈控制系统简化以往的电子式混水阀,用户调节目标温度值更加便捷,同时对水流流量和水流温度波动情况做出快速反应,稳定混合水流的温度,并具有混合温度过底或过高自动保护,避免用户受到冷激或烫伤。(The invention discloses an electronic constant-heat water mixing valve which comprises an internal structure, wherein the internal structure comprises an integrated circuit board, a water flow sensor or a water pressure sensor, a mixed water temperature sensor, a cold water or hot water servo and a cold water or hot water triangular valve, the water flow sensor and the mixed water temperature sensor are respectively connected with the integrated circuit board, the integrated circuit board is connected with the cold water or hot water servo, and the cold water or hot water servo is connected with the cold water or hot water triangular valve. The novel feedback control system is used for simplifying the conventional electronic water mixing valve, so that a user can adjust a target temperature value more conveniently, the rapid response is made to the flow rate of water flow and the fluctuation condition of the temperature of the water flow, the temperature of mixed water flow is stabilized, the automatic protection of over-low or over-high mixed temperature is realized, and the user is prevented from being subjected to cold shock or scald.)

1. The utility model provides an electronic type constant heat mixes water valve which characterized in that: including inner structure, inner structure includes integrated circuit board (1), rivers flow sensor (2) or water pressure sensor, mixes water temperature sensor (3), cold water or hot water servo (7) and cold water or hot water triangular valve (8), rivers flow sensor (2), mix water temperature sensor (3) and be connected with integrated circuit board (1) respectively, integrated circuit board (1) is connected with cold water or hot water servo (7), cold water or hot water servo (7) are connected with cold water or hot water triangular valve (8).

2. The electronic constant-heat mixing valve according to claim 1, wherein: the integrated circuit board (1) adopts the sbit PWM _ S1= P2^0 to position and transmit the PWM wave to control the cold water or hot water servo (7) to rotate and control the cold water or hot water servo (7).

3. The electronic constant-heat mixing valve of claim 2, wherein: the control step of the integrated circuit board (1) comprises:

s1: the integrated circuit board (1) emits PWM waves to control the cold water or hot water triangular valve (8) to be in a fully-open state and a fully-closed state, namely, the water flow of one branch is obtained, then the switching state is controlled to be switched, namely, the water flow of the other branch is obtained, the larger value is judged to be an actual cold water end water inlet, the smaller value is judged to be an actual hot water end water inlet, and the cold water and hot water flow proportion K:1 is calculated;

s2: the opening and closing degree of the cold water or hot water triangular valve (8) is controlled through the calculated cold and hot water flow rate proportion, so that the aim of adjusting the water temperature is fulfilled.

4. The electronic constant-heat mixing valve according to claim 3, wherein: the S2 comprises an adjusting mode, a keeping mode and a risk avoiding mode;

adjusting mode: when the actual measured temperature is lower than the set temperature T of a user, the integrated circuit board (1) controls a cold water or hot water servo (7) introduced into a cold water end to rotate so that the opening degree of a corresponding cold water or hot water triangular valve (8) is reduced; meanwhile, the integrated circuit board (1) controls a cold water or hot water servo (7) which is led into a hot water end to rotate so as to increase the opening and closing degree of a corresponding cold water or hot water triangular valve (8), thereby changing the flow ratio of cold water and hot water, increasing the flow of hot water, reducing the flow of cold water, and enabling the actual mixed water temperature to gradually approach the target temperature; on the contrary, when the actually measured temperature is higher than the temperature T set by the user, the cold water or hot water servo (7) rotates simultaneously and rotates in the opposite direction of the above situation until the actual temperature is kept in the range of T +/-0.5 ℃, so as to realize constant temperature;

a holding mode: the actual mixing temperature fluctuates within the range of T +/-0.5 ℃, the integrated circuit board (1) does not send a control signal until the temperature fluctuation exceeds the limit, and the temperature regulation mode is automatically switched to realize real-time dynamic constant temperature;

and (3) risk avoiding mode: and detecting that the water temperature fluctuation exceeds +/-3 ℃ in a holding mode by taking 2 seconds as a period, entering the mode, closing all water inlets in the mode, recovering after one minute and entering a new working period again.

5. The electronic constant-heat mixing valve according to claim 1, wherein: still include exterior structure, exterior structure includes display screen (14) and adjustment button (13), display screen (14) are connected with rivers flow sensor (2), mixed water temperature sensor (3) respectively, adjustment button (13) are connected with cold water or hot water servo (7).

6. The electronic constant-heat mixing valve according to claim 1, wherein: the internal structure further comprises a Bluetooth module (11) used for remote information transmission, and the Bluetooth module (11) is connected with the cold water or hot water server (7).

7. The electronic constant-heat mixing valve according to claim 1, wherein: the cold water or hot water servo (7) is linked with a valve core gear of a cold water or hot water triangular valve (8).

Technical Field

The invention relates to the field of electronic constant-heat water mixing valves, in particular to an electronic constant-heat water mixing valve.

Background

The mixing valve is a valve for mixing cold water and hot water. The valve itself can not be mixed, and only the cold and hot water pipes are connected, so that the mixing function is achieved.

The current mixing valve can be divided into two types in the technical field, namely an electronic mixing valve and a thermostat mixing valve.

The thermostat water mixing valve has high requirement on water quality, and can cause blockage of the thermostatic control valve after long-term use, so that the sensitivity is reduced, and the thermostatic effect is seriously and quickly disabled.

At present, the water mixing valve of the domestic thermostat mostly adopts a paraffin valve core, and the reaction for sensing the temperature is relatively slow.

Electronic water mixing valve: in the technology starting stage, the market share is low, the manufacturing cost is high, the temperature adjusting speed is high, and the temperature control effect is good; the water supply quantity of the cold water and the hot water is controlled by utilizing the sensor identification and the singlechip.

The existing electronic water mixing valve has the following defects:

1. the feedback system is too complex.

2. The hot and cold water inlets have specific requirements.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an electronic constant-heat water mixing valve.

The purpose of the invention is realized by the following technical scheme: the utility model provides an electronic type constant-heat water mixing valve, the water mixing valve includes inner structure, inner structure includes integrated circuit board, rivers flow sensor, mixes water temperature sensor, cold water or hot water servo and cold water or hot water triangle valve, rivers flow sensor, mix water temperature sensor and be connected with integrated circuit board respectively, integrated circuit board is connected with cold water or hot water servo, cold water or hot water servo is connected with cold water or hot water triangle valve, and integrated circuit board adopts the digital signal feedback of temperature, flow information to realize controlling water flow size, the ultralow delay.

Further, the integrated circuit board adopts the sbit PWM _ S1= P2^0 to position and transmit the PWM wave to control the cold water or hot water servo to rotate and control the cold water or hot water servo.

Further, the control step of the integrated circuit board comprises:

s1: the integrated circuit board emits PWM waves to control the cold water or hot water triangular valve to be in a fully-open state and a fully-closed state, namely the water flow of one branch is obtained, then the switching state is controlled to be switched, namely the water flow of the other branch is obtained, the larger value is judged to be an actual cold water end water inlet, the smaller value is judged to be an actual hot water end water inlet, and the cold water and hot water flow proportion K:1 is calculated;

s2: the opening and closing degree of the cold water or hot water triangular valve is controlled through the calculated cold and hot water flow rate and the calculated cold and hot water flow rate, so that the aim of adjusting the water temperature is fulfilled.

Preferably, the S2 includes an adjustment mode, a holding mode and a risk avoiding mode;

adjusting mode: when the actually measured temperature is lower than the temperature T set by the user, the integrated circuit board controls a cold water or hot water servo introduced into the cold water end to rotate so as to reduce the opening degree of the corresponding cold water or hot water triangular valve; meanwhile, the integrated circuit board controls a cold water or hot water servo machine introduced into a hot water end to rotate so as to increase the opening degree of a corresponding cold water or hot water triangular valve, so that the cold water and hot water flow ratio is changed, the hot water flow is increased, the cold water flow is reduced, and the actual mixed water temperature is gradually close to the target temperature; on the contrary, when the actually measured temperature is higher than the temperature T set by the user, the cold water or hot water servo is rotated at the same time and is rotated in the opposite direction of the above condition until the actually measured temperature is kept in the range of T +/-0.5 ℃, so that the constant temperature is realized;

a holding mode: the actual mixing temperature fluctuates within the range of T +/-0.5 ℃, the integrated circuit board does not send a control signal until the temperature fluctuation exceeds the limit, and the temperature regulation mode is automatically switched to realize real-time dynamic constant temperature;

and (3) risk avoiding mode: and detecting that the water temperature fluctuation exceeds +/-3 ℃ in a holding mode by taking 2 seconds as a period, entering the mode, closing all water inlets in the mode, recovering after one minute and entering a new working period again.

Further, still include the exterior structure, the exterior structure includes display screen and adjustment button, the display screen is connected with rivers flow sensor, mixed water temperature sensor respectively, adjustment button is connected with cold water or hot water server, shows real-time detection's temperature information and flow information to the display screen on, distinguishes cold water and hot water inlet through rivers flow information is automatic during the initialization, reduces the installation requirement, and multiple valve has improved the security.

Furthermore, the inner structure further comprises a Bluetooth module for remote information transmission, the Bluetooth module is connected with a cold water or hot water server, the Bluetooth module is connected to a mobile phone to observe flow temperature information, and the target temperature can be quickly adjusted on the mobile phone, so that the operation and the use of a user are facilitated.

Preferably, the water flow sensor is replaced by a water pressure sensor, the rest of the water flow sensor is unchanged, the same effect can be achieved, and the structure can collect cold water, hot water and mixed water flow information and provide guarantee for judging cold water and hot water flow inlets.

Preferably, the cold water or hot water servo is in gear connection with a valve core of the cold water or hot water triangular valve, the opening degree of the valve core is controlled by using the cold water or hot water servo with lower precision, the cost is reduced, and the gear ratio of the cold water or hot water servo and the hot water servo is controlled, so that the opening degree control precision of the valve core is still higher than that of the valve core rigidly connected by the straight rod.

Cold and hot water flows in from cold water or hot water inlet tube, it mixes to get into mixed surge chamber through cold water or hot water triangular valve, pass through mixed water temperature sensor again, rivers flow sensor, central processing unit AT89C52 receives the mixed temperature signal of electricity that mixed water temperature sensor produced and the discharge signal of electricity that rivers flow sensor produced and does algorithm processing, the realization judges cold and hot water inlet according to feedback information, and control cold water or hot water servo drive the degree of opening and shutting of adjusting cold water or hot water triangular valve, thereby adjust the hot and cold water flow ratio, balanced temperature, realize the automation and the quick control of mixed temperature.

The invention has the beneficial effects that:

1. the servo is connected with the valve core gear, the opening degree of the valve core can be controlled by using the servo with lower precision, the cost is reduced, the gear ratio of the servo and the valve core gear is controlled, and the opening degree control precision is still higher than that of the valve core rigidly connected by the straight rod.

2. The electronic constant-temperature water mixing valve collects the water flow temperature and flow of each branch at present, the feedback system is too complex, the electronic constant-temperature water mixing valve simplifies the feedback system, and the collected total flow and the mixed temperature are fed back to the main control chip, so that the efficiency is improved, the raw materials are saved, and the cost is reduced.

3. The cold and hot water inlet is automatically detected, the installation requirement is reduced, the principle is that in the peak period or peak leveling period of water consumption, water flow passes through the heater, water pressure drop is generated, and the cold and hot water flow generates flow difference which can be used as a theoretical basis for judging the cold and hot water inlet.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

FIG. 3 is a schematic diagram of the control portion of the system of the present invention;

FIG. 4 is a schematic diagram of the automatic control system of the present invention;

FIG. 5 is a schematic diagram of the duty cycle control phase of the present invention;

in the figure: 1-integrated circuit board, 2-water flow sensor, 3-mixed water temperature sensor, 4-mixed buffer chamber, 5-power interface, 6-mixed outlet valve, 7-cold water or hot water servo, 8-cold water or hot water triangular valve, 9-servo and valve core gear link structure, 10-cold water or hot water inlet pipe, 11-Bluetooth module, 12-mixed outlet pipe, 13-adjusting button, 14-display screen, 15-system shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention is further described with reference to the following figures and specific embodiments.

As shown in fig. 1 to 5, the electronic constant-heat mixing valve includes an internal structure, the internal structure includes an integrated circuit board 1, a water flow sensor 2, a mixed water temperature sensor 3, a cold water or hot water server 7 and a cold water or hot water triangular valve 8, the water flow sensor 2 and the mixed water temperature sensor 3 are respectively connected to the integrated circuit board 1, the integrated circuit board 1 is connected to the cold water or hot water server 7, and the cold water or hot water server 7 is connected to the cold water or hot water triangular valve 8. From start-up with the mixing outlet valve 6 open and flow 1.5L/min to no shut-down but within 5 minutes after the mixing outlet valve 6 is temporarily closed is called a duty cycle. In the working period, a user can set a target temperature through a key or Bluetooth, shut down and restart the temperature and enter a new working period, wherein the working period is divided into 4 stages: the method comprises the following steps of firstly, an initial stage, secondly, a transition stage, thirdly, a control stage and fourthly, a dormancy stage:

firstly, an initial stage:

and judging cold and hot water inlets and calculating the ratio of the flow of cold water to the flow of hot water. Specifically, after the mixing outlet valve 6 is started and opened and the total flow reaches 1.5L/min, the central processing unit AT89C52 generates PWM waves to control the cold water or hot water servo 7 to rotate within 0-1 second, so that the corresponding cold water or hot water triangular valve 8 is in a fully-opened state and a fully-closed state, namely, the branch water flow of one path is obtained, the central processing unit AT89C52 generates PWM waves again to control the cold water or hot water servo 7 to rotate within 1-2 seconds, so that the opening and closing states of the corresponding cold water or hot water triangular valve 8 are exchanged, namely, the branch water flow of the other path is obtained. The central processing unit AT89C52 obtains the water flow value of the two-branch water inlet within 2 seconds through the water flow sensor 2, and judges that the larger value is the actual cold water inlet and the smaller value is the actual hot water inlet. The central processing unit AT89C52 adopts the sbit PWM _ S1= P2^0 to position and transmit the PWM wave to control the rotation of the cold water or hot water servo 7, the sbit is a bit corresponding to the addressable space, and most of the sbit is used in the register, which is convenient for operating a certain bit of the register.

A transition stage:

and waiting for the hot water to flow through the mixed water temperature sensor 3 within 30 seconds, and acquiring the temperature by the mixed water temperature sensor 3 and transmitting the temperature to the central processing unit AT89C52 for calculation processing. Specifically, the opening ratio of the valve core of the cold water or hot water triangular valve 8 is set to be 1:1, and the actual cold water and hot water flow rate is K: 1. The mixed water temperature sensor 3 collects the actual temperature change outside the temperature of +/-1 ℃, which indicates that the hot water arrives, and immediately enters the control stage. If the temperature changes within +/-1 ℃ within 30 seconds, prompting to check whether hot water is introduced or not, and entering a risk avoiding mode of a control stage.

Controlling the stage: this phase includes 3 modes: an adjustment mode, a hold mode and a risk avoidance mode.

Adjusting mode: adjusting the actual mixing temperature to the target temperature. Specifically, the central processing unit AT89C52 controls the cold water or hot water servo 7 to rotate, so that the opening and closing degrees of the corresponding cold water or hot water triangular valves 8 are changed, the proportion of cold water and hot water flow is controlled, and the mixed temperature is adjusted to reach the target temperature. The process is shown in figure 5. The detailed steps of realizing the control of the cold and hot water flow ratio are as follows: when the actual measured temperature in one temperature acquisition period is lower than the temperature T set by the user, in the next temperature acquisition period, the central processing unit AT89C52 controls the cold water or hot water servo 7 introduced into the cold water end to rotate so as to reduce the opening degree of the corresponding cold water or hot water triangular valve 8. Meanwhile, the central processing unit AT89C52 controls the cold water or hot water servo 7 which is led into the hot water end to rotate, so that the opening degree of the corresponding cold water or hot water triangular valve 8 is increased, the flow ratio of cold water and hot water is changed, the flow of hot water is increased, the flow of cold water is reduced, and the actual mixed water temperature is gradually close to the target temperature. On the contrary, when the actually measured temperature is greater than the user set temperature T, the cold or hot water servo 7 is simultaneously rotated and rotated in the opposite direction to the above case until the actual temperature is maintained within the range of T ± 0.5 ℃, and the constant temperature is realized.

A holding mode: specifically, the actual mixing temperature fluctuates within the range of T +/-0.5 ℃, the central processing unit AT89C52 does not send a control signal until the temperature fluctuation exceeds the limit, and the temperature regulation mode is automatically switched to realize real-time dynamic constant temperature.

And (3) risk avoiding mode: specifically, the water temperature fluctuation is detected to exceed +/-3 ℃ in a holding mode by taking 2 seconds as a period, and the mode is entered.

In this mode all water inlets are closed and after one minute they are restored and re-enter a new duty cycle.

Fourthly, a dormancy stage:

specifically, within 5 minutes after the mixing outlet valve 6 is closed without shutdown, the water flow sensor 2 and the mixed water temperature sensor 3 stop working, and the opening degree of the cold water or hot water triangular valve 8 is kept unchanged. And if the mixing outlet valve 6 is reopened within 5 minutes and the actual measured temperature is not within the range of T +/-0.5 ℃ within 3 seconds, entering a temperature adjusting mode of the control stage. And if the operation is restarted after 5 minutes, entering a new working period.

Still include exterior structure, exterior structure includes display screen 14 and adjustment button 13, and display screen 14 is connected with rivers flow sensor 2, mixed water temperature sensor 3 respectively, and adjustment button 13 is connected with cold water or hot water servo 7. Inside rivers flow sensor 2, the mixed water temperature sensor 3 were located the water pipe, on the temperature information and the flow information display of real-time detection to display screen 14, cold water and hot water inlet are distinguished through rivers flow information is automatic during the initialization, reduce the installation requirement, and multiple valve has improved the security. The adjustment button 13 can directly adjust the target temperature.

The internal structure also comprises a Bluetooth module 11 used for remote information transmission, and the Bluetooth module 11 is connected with the cold water or hot water server 7. The Bluetooth module 11 is connected to the mobile phone to observe the flow and temperature information, and quickly adjust the target temperature on the mobile phone, so that the mobile phone is convenient for a user to operate and use.

The water flow sensor 2 is replaced by a water pressure sensor, and the rest are unchanged, so that the same effect can be achieved. The water flow sensor 2 can collect cold water, hot water and mixed water flow information, and provides guarantee for judging cold and hot water flow inlets.

The cold water or hot water servo 7 is in gear connection with a valve core of the cold water or hot water triangular valve 8, the cold water or hot water servo 7 with lower precision is used for controlling the opening degree of the valve core, the cost is reduced, the gear ratio of the cold water or hot water servo 7 and the hot water or hot water triangular valve is controlled, and the control precision of the opening degree of the valve core is still higher than that of the valve core rigidly connected by the straight rod.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.