CN204494811U - Intelligent thermostat - Google Patents

Abstract

An intelligent thermostat comprises a water mixing valve, a cold water inlet pipe, a hot water outlet pipe, an outlet water temperature sensor, a water flow sensor and a circuit board, wherein the cold water inlet pipe is connected and communicated with a water source and a water heater, the middle part of the cold water inlet pipe is communicated with the water mixing valve, and the water flow sensor is arranged at the water inlet end of the cold water inlet pipe; the water outlet end of the water mixing valve is connected with the hot water outlet pipe, the hot water inlet end of the water mixing valve is connected with the water heater through the hot water guide pipe, and the water outlet temperature sensor is arranged on the hot water outlet pipe; the device also comprises a stepping motor, a driving gear, a sector gear and a frame plate; the frame plate is fixed on the water mixing valve, the stepping motor is fixed on the frame plate, the driving gear is fixedly connected with a shaft of the stepping motor, the sector gear is fixedly connected with a valve rod of the water mixing valve, and the driving gear is meshed with the sector gear; the stepping motor is connected with the circuit board. The electric water heater or the gas water heater can be arranged in the shell of the electric water heater or the gas water heater, can be arranged outside the shell, can be remotely controlled and is convenient to use.

Description

smart thermostat

technical field

The utility model relates to an automatic cold and hot water mixing device for a water heater, in particular to an intelligent thermostat.

Background technique

In the current prior art, an automatic water mixing valve for an electric water heater includes a valve body, a valve cover, a water mixing valve core, a cold water inlet pipe, an inlet water temperature sensor, an outlet water temperature sensor, a water flow sensor, a stepping motor, a driving gear, a sector Gears and micro switches, the valve body includes a valve core chamber, a cold water inlet port, a hot water inlet port, a mixed water outlet port and a screw hole at the upper end of the valve core chamber, and the cold water inlet port is connected to the cold water inlet pipe; The valve cover has a valve stem hole; the sector gear has a driving lever to cooperate with the micro switch. The problem is that the utility model has poor versatility and can only be installed in the shell of the water heater.

Utility model content

The purpose of this utility model is: to provide an intelligent thermostat, which is not only installed anywhere outside the shell of the water heater as a device, but also can be set inside the shell of the water heater.

The utility model is realized in this way: the intelligent thermostat includes a water mixing valve, a cold water inlet pipe, a hot water outlet pipe, an outlet temperature sensor, a water flow sensor and a circuit board, and the outlet water temperature sensor and the water flow sensor are connected to the circuit board; its special The location is: the water inlet end of the cold water inlet pipe is connected to the water source, the water outlet end is connected to the water heater, the middle part is connected to the water mixing valve, and the water flow sensor is arranged at the water inlet end of the cold water inlet pipe;

The outlet end of the mixing valve is connected to the hot water outlet pipe, the hot water inlet end of the mixing valve is connected to the water heater through the hot water guide pipe, and the outlet water temperature sensor is set on the hot water outlet pipe;

Also includes stepper motors, driving gears, sector gears and shelf plates;

The frame plate is fixed on the water mixing valve, the stepping motor is fixed on the frame plate, the driving gear is fixedly connected with the stepping motor shaft, the sector gear is fixedly connected with the valve stem of the mixing valve, and the driving gear and the sector gear mesh; the stepping motor Connect with circuit board.

The special feature of the intelligent thermostat is that: the shelf plate has a through hole for the valve stem, and arc-shaped elongated holes at both ends, and the valve stem passes through the hole to connect with the sector gear; The motor shaft passes through the elongated hole and is fixedly connected with the driving gear.

The special feature of the intelligent thermostat is that there is a lever on the sector gear;

It also includes a micro switch, the micro switch is arranged on the upper part of the shelf, and the driving lever cooperates with the micro switch.

The smart thermostat described above is special in that: the shelf plate has a through-hole for the valve stem, arc-shaped elongated holes at both ends and an arc-shaped positioning adjustment hole, and the valve stem passes through the through-hole It is connected with the sector gear; the motor shaft is fixedly connected with the driving gear through the elongated hole; the screw is threaded through the arc-shaped positioning adjustment hole and the motor casing.

The smart thermostat described above is special in that it also includes a shell,

The shell includes a bottom shell and a front cover, and the bottom shell and the front cover have semicircular holes on both side wall panels; the bottom shell and the front shell are buckled and the semicircular holes form a circular fixing hole;

The cold water inlet pipe, the hot water outlet pipe and the hot water guide pipe are fixedly connected to the bottom shell, and the circuit board is fixed inside the front cover;

The cold water inlet pipe, the hot water outlet pipe and the hot water guide pipe stretch out from the round fixing hole.

The utility model relates to an automatic water mixing valve for an electric water heater. Due to the adoption of such a structure, it can be installed not only inside the shell of the electric water heater or the gas water heater, but also outside the shell to control the electric water heater or the gas water heater remotely. convenient.

Description of drawings

Fig. 1 is a perspective view of the utility model.

Fig. 2 is a three-dimensional exploded view of the utility model.

Fig. 3 is the second perspective view of the utility model.

Fig. 4 is the second perspective exploded view of the utility model.

Fig. 5 is a front view of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 2, Figure 3, and Figure 4, an intelligent thermostat includes a water mixing valve 1, a cold water inlet pipe 2, a hot water outlet pipe 3, an outlet water temperature sensor 4, a water flow sensor 5, and a circuit board 6. The sensor 4 and the water flow sensor 5 are connected to the circuit board 6 . The water inlet end 21 of the cold water inlet pipe 2 communicates with the water source, the water outlet end 22 communicates with the water heater, the middle part communicates with the water mixing valve 1 through the cold water guide pipe 23, and the water flow sensor 5 is arranged at the water inlet end 21 of the cold water inlet pipe 2;

The outlet end of the mixing valve 1 is connected to the hot water outlet pipe 3, the hot water inlet end of the mixing valve 1 is connected to the water heater through the hot water guide pipe 31, and the outlet water temperature sensor 4 is arranged on the hot water outlet pipe 3;

The water mixing valve 1, the cold water inlet pipe 2, the cold water guide pipe 21, the hot water outlet pipe 3 and the hot water guide pipe 31 are fixedly connected as one.

It also includes a stepping motor 7, a driving gear 8, a sector gear 9 and a frame plate 10;

The frame plate 10 is fixed on the water mixing valve 1, the stepper motor 7 is fixed on the frame plate 10, the driving gear 8 is fixedly connected with the stepper motor shaft, the sector gear 9 is fixedly connected with the valve stem of the water mixing valve 1, and the driving gear 8 Mesh with the sector gear 9; the stepping motor 1 is connected with the circuit board 6.

There is a passage hole 101 for the valve stem on the shelf 10, an arc-shaped elongated hole 102 and an arc-shaped positioning adjustment hole 103 at both ends, and the valve stem passes through the passage hole 101 and is connected with the sector gear 9; The motor shaft passes through the elongated hole 102 and is fixedly connected with the driving gear 8 . The screw passes through the arc-shaped positioning adjustment hole 103 and screwed with the motor casing, and the other screw passes through the connecting hole on the frame plate 10 and screwed with another screw hole of the motor casing; it is mainly used to adjust the position of the stepping motor 7 and fixed.

There is a lever 91 on the sector gear 9;

It also includes a micro switch 11 , the micro switch 11 is arranged on the upper part of the shelf 10 , and the lever 91 cooperates with the micro switch 11 .

Also includes a shell,

The shell includes a bottom shell 12 and a front cover 13, and the bottom shell 12 and the front cover 13 have semicircular holes 14 on both side wall panels; the bottom shell 12 and the front shell 13 are fastened to form a circular fixing hole after the semicircular holes are fastened together;

The cold water inlet pipe 2, the hot water outlet pipe 3 and the hot water guide pipe 4 are fixedly connected to the bottom shell 12, and the circuit board 6 is fixed inside the front cover 13;

The cold water inlet pipe 2, the hot water outlet pipe 3 and the hot water guide pipe 31 stretch out from the circular fixing hole 15.

The state shown in Figure 5: the motor rotates counterclockwise, the sector gear 9 rotates clockwise, and the amount of cold water entering the mixing valve 1 gradually increases. When the lever 91 on the sector gear 9 contacts the micro switch 11, the micro switch The switch 11 transmits the signal to the circuit board 6, and the motor stops rotating;

The motor rotates clockwise, the sector gear 9 rotates counterclockwise, the amount of hot water entering the water mixing valve 1 increases gradually, and the outlet water temperature sensor 4 transmits the signal to the circuit board 6; when the set temperature is reached, the motor stops rotating.

What has been described above is only the preferred implementation of the present utility model. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principle of the utility model, which are also regarded as the protection scope of the utility model.

Claims (5)

1. intelligent thermostat, comprise mixed water valve, cold water inlet, hot water outlet pipe, leaving water temperature sensors, water flow sensing unit and wiring board, leaving water temperature sensors is connected with wiring board with water flow sensing unit; It is characterized in that: the water inlet end of described cold water inlet is communicated with water source, and water side is communicated with water heater, middle part is communicated with mixed water valve, and water flow sensing unit is arranged on the water inlet end of cold water inlet;

The water side of mixed water valve is connected with hot water outlet pipe, and the hot water water inlet end of mixed water valve is connected with water heater by hot water aqueduct, and leaving water temperature sensors is arranged on hot water outlet pipe;

Also comprise a stepper motor, driving gear, sector gear and frame plate;

Frame plate is fixed on mixed water valve, and stepper motor is fixed on frame plate, and driving gear is fixedly connected with step motor shaft, and sector gear is fixedly connected with the valve rod of mixed water valve, driving gear and sector gear engagement; Stepper motor is connected with wiring board.

2. intelligent thermostat according to claim 1, is characterized in that: the elongate holes curved through hole, two ends described frame plate having valve rod, and valve rod is through being connected with sector gear through hole; Described motor shaft is fixedly connected with driving gear through elongate holes.

3. intelligent thermostat according to claim 1, is characterized in that: described sector gear has driving lever;

Also comprise a microswitch, described microswitch is arranged on frame plate top, and driving lever coordinates with microswitch.

4. intelligent thermostat according to claim 3, is characterized in that: the elongate holes curved through hole, two ends and the arc location adjustment hole that described frame plate have valve rod, and valve rod is through being connected with sector gear through hole; Described motor shaft is fixedly connected with driving gear through elongate holes; Screw screws togather through arc location adjustment hole and motor casing.

5. the intelligent thermostat according to claim 1,2,3 or 4, is characterized in that: also comprise a shell,

Described shell comprises drain pan and protecgulum, the two side wall panels of drain pan and protecgulum have semicircle orifice; Drain pan and fore shell fasten later half circular hole and form circle fixing hole;

Described cold water inlet, hot water outlet pipe are fixedly connected with drain pan with hot water aqueduct, and wiring board is fixed with in protecgulum;

Cold water inlet, hot water outlet pipe and hot water aqueduct stretch out from circle fixing hole.