TWI779950B - Constant-temperature hot water device - Google Patents

Abstract

A constant-temperature hot water device includes a machine body, a heater, a partition, a water inlet pipe, a water level detection unit, and at least one water outlet module. The heater and the partition are disposed in an accommodating space that is defined by the machine body. The partition is located above the heater and is inclined. The partition divides the accommodating space into an upper volume and a lower volume. A gap is formed between the two sides of the partition and the two sides of the machine body. When cold water is fed into the machine body through the water inlet pipe, the flow of cold water will be blocked by the partition, so that the cold water will be concentrated in a volume area below the partition. When the heater is operated to heat, the higher-temperature water will flow upward along the partition to the upper volume. The water flow causes lower-temperature hot water in the upper volume flow downward along the partition. When the heater is heated, the flow of water achieves the effect of circulating perturbation and uniform temperature.

Description

Constant temperature hot water device

The invention relates to a constant temperature hot water device, in particular to a constant temperature hot water device capable of achieving the effect of circulating and disturbing the uniform temperature of hot water.

For brewing beverages such as coffee or tea, one of the most important external factors affecting the taste is the temperature of hot water, especially hot water for brewing beverages for business use. During the peak hours of business, the water heater is frequently replenished with cold water due to continuous brewing. The temperature of the hot water is unstable, which greatly affects the taste and flavor of the beverage.

The technical problem to be solved by the present invention is to provide a constant temperature hot water device for the deficiencies of the prior art, which can stabilize the temperature of the hot water and make the taste and flavor of the drink better.

In order to solve the above-mentioned technical problems, the present invention provides a constant temperature hot water device, which includes: a body, an accommodating space is formed inside the body, and the accommodating space is connected to a hot water outlet, which can be used to output hot water; device, the heater is arranged in the accommodation space of the body; a partition, the partition is arranged in the accommodation space of the body, the partition is located above the heater, the partition is inclined, the The partition divides the accommodating space into an upper volume and a lower volume, and a gap is formed between the two sides of the partition and the two sides of the body; a water inlet pipe is arranged in the accommodating space, the The water inlet pipe is located below the partition, and the water inlet pipe can deliver cold water into the body; a water level detection unit is arranged on the body, and the water level detection unit extends into the accommodating space and can be used to to detect the water level; and at least one water outlet module, the water outlet module is arranged between the accommodating space and the hot water outlet, the water outlet module is used to control the hot water outlet; wherein when the cold water is input from the water inlet pipe When inside the body, the flow of cold water will be blocked by the partition, so that the cold water will be concentrated in the lower volume area below the partition, and the heater will be activated to heat, and the hot water with a higher temperature will flow upward during heating and follow the partition. The plate flows in an upwardly inclined direction and flows through the upper volume. The water flow causes the colder hot water in the upper volume to flow downward in the downwardly inclined direction of the partition. When the heater is heated, the water flow is caused to make the hot water circulate. The effect of perturbing the uniform temperature.

Preferably, the heater is arranged in the body close to the lower end, and the water outlet module is connected to the middle lower part of the upper volume.

Preferably, one end of the water inlet pipe is provided with a first cold water solenoid valve to control the inlet of cold water, the water inlet pipe is located between the heater and the partition, the water inlet pipe is provided with a plurality of water outlet holes, the Some water outlet holes are evenly distributed on the water inlet pipe.

Preferably, it also includes a cold water tank, a cold water connecting pipe is connected between the cold water tank and the water inlet pipe, so that the cold water can be delivered to the cold water tank and the body in sequence, the water level of the cold water tank and the water level in the body The water level is at the same horizontal position, the cold water tank is connected to a cold water outlet, which can be used to output cold water, a second cold water solenoid valve is arranged between the cold water tank and the cold water outlet, and the cold water outlet is at the same level as the hot water outlet .

The beneficial effect of the present invention is that the constant temperature hot water device provided by the present invention includes a machine body, a heater, a partition, a water inlet pipe, a water level detection unit and at least one water outlet module. The heater and the partition are arranged in the accommodation space of the body. The partition is located above the heater. The partition is inclined. The partition divides the storage space into an upper volume and a lower volume. A gap is formed between the two sides. When cold water enters the body through the water inlet pipe, the flow of cold water will be blocked by the partition, so that the cold water will be concentrated in the lower volume area below the partition, and the heater will be activated to heat up. The clapboard flows upwards and flows through the upper volume. The water flow causes the colder hot water in the upper volume to flow downwards in the direction of the downward inclination of the clapboard. When the heater is heated, the water flow is caused to make the hot water reach the uniform temperature of the circulation disturbance. The effect, but can effectively improve the frequent replenishment of cold water and make the hot water temperature unstable.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the provided drawings are only for reference and description, and are not intended to limit the present invention.

The following are specific examples to illustrate the implementation methods disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only for simple illustration, and are not drawn according to the actual size, which is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention. In addition, the term "or" used herein may include any one or a combination of more of the associated listed items depending on the actual situation.

[first embodiment]

Please refer to Figure 1 and Figure 2, the present invention provides a constant temperature hot water device, including a body 1, a heater 2, a partition 3, a water inlet pipe 4, a water level detection unit 5 and at least one water outlet module 6 .

The body 1 is a hollow body, and an accommodating space 11 is formed inside the body 1, and the accommodating space 11 is connected (communicated) with a hot water outlet 13, which can be used for outputting hot water. The heater 2 can be a heating device such as an electric heating tube. The heater 2 is installed in the accommodation space 11 of the body 1. Because only hot water for brewing beverages is supplied, and the temperature of the hot water is usually below 98°C, the heater 2 can Installed in the body 1 close to the lower end.

The partition 3 is arranged in the accommodating space 11 of the body 1, the partition 3 is located above the heater 2, the partition 3 is inclined, and the partition 3 divides the accommodating space 11 into an upper volume 111 and The lower volume 112 , the upper volume 111 and the lower volume 112 are located above and below the partition 3 respectively. Both sides of this dividing plate 3 (such as the front side and the rear side of the dividing plate 3) and the both sides of the body 1 (such as the front side and the rear side of the body 1) are spaced apart from each other, so that both sides of the dividing plate 3 and the body 1 A gap 12 is formed between the two sides of each. Preferably, the other two sides of the partition 3 (such as the left side and the right side of the partition 3 ) are in contact with the other two sides of the body 1 (such as the left side and the right side of the body 1 ). Preferably, the partition 3 is in a sloped shape with the front low and the rear high (as shown in FIG. 2 ), that is, the side of the partition 3 near the body 1 with the hot water outlet 13 is the lowest point, and the partition 3 The side where the hot water outlet 13 is arranged away from the body 1 is the highest point.

The water inlet pipe 4 is arranged in the accommodating space 11 , the water inlet pipe 4 is located under the partition 3 , preferably, the water inlet pipe 4 is located between the heater 2 and the partition 3 . One end of the water inlet pipe 4 can be connected to a water source, and one end of the water inlet pipe 4 can also be provided with a first cold water solenoid valve 7 to control the inlet of cold water so that the cold water can be delivered to the body 1 . The length of the water inlet pipe 4 matches the length of the heater 2, the water inlet pipe 4 can be arranged horizontally, and the water inlet pipe 4 is provided with a plurality of water outlet holes 41, and these water outlet holes 41 can be evenly distributed on the water inlet pipe 4, These water outlet holes 41 are preferably upward, and these water outlet holes 41 can also flow in the horizontal direction.

The water level detection unit 5 is arranged on the body 1. The water level detection unit 5 extends into the accommodating space 11 and can be used to detect the water level. The water level detection unit 5 can include a normal water level detector 51 and a high water level detector. Detector 52 is used to detect normal water level and high water level respectively.

When hot water is used for brewing beverages, the water level in the body 1 drops, and when the hot water level leaves the normal water level detector 51, the automatic control system starts the pump (not shown), and the cold water is evenly distributed from the water inlet pipe 4 The water outlet hole 41 flows upwards, and the cold water flow will be blocked by the partition 3, so that the cold water is concentrated in the volume 112 area below the partition 3, and the heater 2 is started to heat at the same time. Due to the physical characteristics of heat going up and cooling down, heating The hot water with a higher temperature flows upwards, and flows along the upward slope of the partition 3, and flows through the upper volume 111. The water flow causes the colder hot water in the upper volume 111 to flow downward in the downward slope of the partition 3, heating When the device 2 is heated, the flow of water flow is caused, so that the hot water in the constant temperature hot water device achieves the effect of circulating and disturbing the uniform temperature.

In addition, a temperature detector 8 can also be installed on the body 1 near the hot water outlet (water outlet module 6) to detect the water temperature. When the hot water is heated to a preset temperature, the automatic control system turns off the heater 2. The normal water level detector 51 can be used to control the normal water level of the constant temperature hot water device. When the water level control function fails, the water level will rise. When the high water level detector 52 detects that the water level is too high, the system will be shut down and a warning will be issued. Signal to ensure the safe use of the constant temperature hot water device.

The water outlet module 6 is disposed between the accommodating space 11 and the hot water outlet 13 , and the hot water outlet 13 and the water outlet module 6 are located at the front side of the body 1 . The water outlet module 6 is used to control the outlet of hot water. The water outlet module 6 can be a solenoid valve. The water outlet module 6 can be used to control the water output. Module 6, assuming that the water output of each water outlet module 6 is 10㏄ per second, if the brewing program requires hot water output of 10㏄ per second, then open a water outlet module 6, if the brewing program requires hot water output 15㏄ per second, one water outlet module 6 is fully open, and the other water outlet module 6 is opened for a set number of seconds and stopped for a set number of seconds. Various flow settings can be deduced by analogy. If a larger water output is required, multiple water outlet modules can be set. Group 6, the water outlet module 6 is not limited to a solenoid valve, other devices for controlling the water outlet can be used, and flow control can also be provided with a throttle valve or a throttle joint on the solenoid valve pipeline.

Because the cold water is limited by the partition 3 to the lower volume 112 when the constant temperature hot water device replenishes water, the hot water in the upper volume 111 above the partition 3 is at a uniform temperature due to the function of the partition 3 and the physical principle of hot and cold water flow during heating. , preferably, the water outlet module 6 can be connected (communicated) to a position lower than the middle of the upper volume 111, so that the hot water flowing out can be uniform temperature hot water. If the water flow rate of the constant temperature hot water device is slightly lower than the flow rate of hot water, the hot water flowing out can also maintain a uniform temperature, and the normal water level can be replenished when the brewing process is waiting for the idle time.

As shown in Figure 3, a filter cup 100 can be placed on a container 200, and a water guide cup 300 can be placed on the filter cup 100, filter paper and coffee can be installed in the filter cup 100, and the constant temperature hot water device can An appropriate amount of hot water is output to the water guide cup 300, and the hot water can flow downward through the multiple outflow holes 301 of the water guide cup 300, so that the hot water is distributed on the coffee powder, so as to complete the manual brewing process.

[Second embodiment]

Please refer to Figure 4 and Figure 5, this embodiment provides a constant temperature hot water device, because there are various types of coffee beans and different coffee beans such as light roasting, medium roasting and heavy roasting, and there are many kinds of tea such as black tea, green tea and oolong tea. , the temperature required for hot water brewing is also different. If the brewing taste of the drink needs to be the most suitable temperature, multi-temperature control is necessary. In this embodiment, a cold water tank 9 is mainly added. The cold water tank 9 can be arranged outside the body 1. A cold water connecting pipe 10 is connected between the cold water tank 9 and the water inlet pipe 4 (see FIG. 1 ), so that the cold water can be delivered in sequence. In the cold water tank 9 and the body 1. In this embodiment, the water level can be controlled by the water level detection unit 5. The water level of the cold water tank 9 is at the same level as the water level in the body 1. The cold water tank 9 is connected to a cold water outlet 91, which can be used to output cold water. The cold water tank 9 and the cold water outlet A second cold water solenoid valve 20 can be arranged between 91 to control the amount of cold water output. The position of the cold water outlet 91 is also located at the same horizontal position as the hot water outlet 13, and the same horizontal water level and the same horizontal outlet of the cold water and hot water make the flow of cold water and hot water consistent. After testing, the water outlet module 6 (hot water solenoid valve ) and the second cold water solenoid valve 20 water output per second.

The maximum temperature for brewing various beverages is the set temperature of the heating temperature of the constant temperature hot water device, for example, 96°C. Multi-temperature hot water brewing process, for example, the brewing temperature of green tea is 80 ℃, the automatic control system has set the ratio of cold water detection temperature and hot water 96 ℃ to 80 ℃ in advance, when the green tea brewing program is executed, it will automatically The control system controls the hot water and cold water output with the opening and closing frequency of the water outlet module 6 (hot water solenoid valve) and the second cold water solenoid valve 20, so that the temperature of the mixed hot water is close to 80°C. In order to make the temperature of the mixed hot water uniform, the hot water and cold water first flow into the water guide cup 300 to mix, and the bottom of the water guide cup 300 is distributed with a plurality of outflow holes 301, and the mixed hot water flows out to the beverage through the plurality of outflow holes 301. The brewing device also has the effect of secondary mixing and uniform temperature. The water guide cup 300 can also be O-ring (not shown) watertight. An exhaust pipe 302 is arranged on the water guide cup 300, and the air in the water guide cup 300 can be discharged The air pipe 302 is discharged, and the exhaust pipe 302 can make cold water and hot water flow smoothly. Top overflow. If the cold water source of the constant temperature hot water device is supplied by the connection of the water source, a water level control device (not shown) can be installed in the cold water tank 9. Because the water levels of the body 1 and the cold water tank 9 are designed to be the same horizontal line, the cold water tank 9 is provided with a water level controller. It needs to be at the same level as the body 1 water level control.

[Third embodiment]

Please refer to Figures 6 to 8. This embodiment provides a constant temperature hot water device, which is suitable for large flow. When the constant temperature hot water device is used in a business beverage store, the brewing volume of one or two cups of beverages is usually about 100 ㏄ to 500㏄, the diameter of the water outlet of the water outlet module 6 (hot water valve) is about 2~4mm. When brewing a large bucket of tea or coffee, the brewing volume of a bucket is usually 4~10 liters. To automatically discharge 1-2 liters of water within seconds, a large-diameter water outlet valve is required, such as 12mm or 1/2 inch. Commercially available large-diameter hot water valves are large in size and difficult to install, and the price is also high. Therefore, this embodiment is controlled by a micro-gear motor. Large-aperture hot water valves can just solve this problem.

The water outlet module 6 (hot water valve) is set on the constant temperature hot water device, and is illustrated by quantification, but not limited thereto. For example, to brew 10 liters of tea, it is divided into five stages, and each stage produces 2 hours of hot water. liters, the constant temperature hot water device can be designed with a volume of 15 liters, an upper volume of 10 liters, and a lower volume of 5 liters. Each section of the lower volume enters 2 liters of cold water without affecting the constant temperature hot water output of the upper volume. The water outlet module 6 includes a valve Body 60, a water control valve head 61, a miniature reduction motor 62, an eccentric wheel 63, a trip frame 64, a positioning rod 65 and a micro switch 66.

A flow channel 601 is formed in the valve body 60, and the flow channel 601 is connected (communicated) with the accommodating space 11. One end of the flow channel 601 is provided with a water outlet 602, and the water control valve head 61 is movably arranged on the valve body. 60, so that the water control valve head 61 can close and open the flow channel 601. The eccentric wheel 63 is connected to the miniature reduction motor 62, and the miniature reduction motor 62 can drive the eccentric wheel 63 to rotate. The trip frame 64 is arranged on the outside of the eccentric wheel 63. The travel frame 64 is pushed by the eccentric wheel 63, so as to move the water control valve head 61 along the axial direction. The positioning rod 65 is connected to the eccentric wheel 63 , and the positioning rod 65 can move to different positions as the eccentric wheel 63 rotates. In addition, a compression spring 67 can also be provided to resist the water control valve head 61 so that the water control valve head 61 can maintain a closed state under normal conditions. In addition, an anti-leakage ring 68 (such as an O-ring) may also be provided between the valve body 60 and the water control valve head 61 .

In this embodiment, for example, the aperture of the water outlet module 6 (hot water valve) is 12 mm, and the stroke of the water control valve head 61 is 12 mm. Control the stroke to control the water outlet flow per unit time. The eccentric wheel 63 is eccentric by 14 mm, and the distance between the eccentric wheel 63 and the two sides (left and right frames) of the travel frame 64 is kept 1 mm. A space is reserved for the frame 64, so that the compression spring 67 can press the water control valve head 61 tightly on the leak-proof ring 68 to ensure that the water outlet module 6 is closed. If the miniature geared motor 62 is selected at 5 RPM, that is, every revolution is 12 seconds, and the eccentric wheel 63 can be rotated 180 degrees for 6 seconds to fully open the water outlet module 6. When the automatic control system finishes the predetermined amount of hot water, the miniature geared motor 62 can forward or reverse. When the eccentric wheel 63 drives the positioning rod 65 and touches the micro switch 66, the micro reduction motor 62 is turned off, the micro reduction motor 62 completes the water discharge program, and the micro reduction motor 62 stroke is ended with the micro switch 66, without counting seconds control, which can avoid automatic The accumulative error of the control system can accurately return to the original point every time the water discharge procedure is executed. The eccentric wheel 63 returns to the original point and other stop devices such as a reed switch can also be used.

The water outlet module 6 (hot water valve) can be designed with one-stage water outlet, multi-stage water outlet or no-stage water outlet. As shown in Figure 8, the full stroke of the water control valve head 61 is the maximum water outlet, and the automatic control system controls the rotation of the micro reduction motor 62. Seconds, you can control the water control valve head 61 to partially open or fully open position to control the water output per unit time, as shown in Figure 8, the water control valve head 61 has two different diameters, and the automatic control system controls the micro deceleration The stroke position of the water control valve head 61 can be controlled by the start of the motor 62 in seconds, so that the difference between the diameter of the flow channel 601 and the diameter of the water control valve head 61 can control the flow rate of the hot water in three stages. The larger diameter of the water valve head 61 controls the minimum flow rate, and the minimum diameter of the water control valve head 61 controls the preset medium flow rate. If it is a single-stage water outlet, the right end of the water control valve head 61 is a single plane (not shown), and the opening and closing device can also be an electromagnet. For stepless water outlet, the right end of the water control valve head 61 can also be tapered, and the eccentric wheel 63 can adjust the water output in a small unit with a slight rotation angle difference (not shown), and a stepping motor or others can also be used for stroke control. effect device.

[Advantageous Effects of Embodiment]

The beneficial effect of the present invention is that the constant temperature hot water device provided by the present invention includes a machine body, a heater, a partition, a water inlet pipe, a water level detection unit and at least one water outlet module. The heater and the partition are arranged in the accommodation space of the body. The partition is located above the heater. The partition is inclined. The partition divides the storage space into an upper volume and a lower volume. A gap is formed between the two sides. When cold water enters the body through the water inlet pipe, the flow of cold water will be blocked by the partition, so that the cold water will be concentrated in the lower volume area below the partition, and the heater will be activated to heat up. The clapboard flows upwards and flows through the upper volume. The water flow causes the colder hot water in the upper volume to flow downwards in the direction of the downward inclination of the clapboard. When the heater is heated, the water flow is caused to make the hot water reach the uniform temperature of the circulation disturbance. The effect, but can effectively improve the frequent replenishment of cold water and make the hot water temperature unstable.

The content disclosed above is only a preferred feasible embodiment of the present invention, and does not therefore limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.

1: Body 11:Accommodating space 111: upper volume 112: lower volume 12: Clearance 13: Hot water outlet 2: Heater 3: Partition 4: water inlet pipe 41: outlet hole 5: Water level detection unit 51: Normal water level detector 52: High Water Level Detector 6:Water outlet module 60: valve body 601: Runner 602: water outlet 61: water control valve head 62: Miniature geared motor 63: Eccentric wheel 64: travel frame 65: positioning rod 66: Micro switch 67: Compression spring 68: Leak stop ring 7: The first cold water solenoid valve 8: Temperature detector 9: cold sink 91: Cold water outlet 10: Cold water connecting pipe 20: Second cold water solenoid valve 100: filter cup 200: container 300: water guide cup 301: outflow hole 302: exhaust pipe

Fig. 1 is a perspective view of a constant temperature hot water device according to a first embodiment of the present invention.

Fig. 2 is a side view of the constant temperature hot water device according to the first embodiment of the present invention.

Fig. 3 is a perspective view of the constant temperature hot water device in use according to the first embodiment of the present invention.

Fig. 4 is a perspective view (1) of the constant temperature hot water device in use according to the second embodiment of the present invention.

Fig. 5 is a perspective view (2) of the constant temperature hot water device in use according to the second embodiment of the present invention.

Fig. 6 is a perspective view of a constant temperature hot water device according to a third embodiment of the present invention.

Fig. 7 is a sectional view (1) of the water outlet module (hot water valve) according to the third embodiment of the present invention.

Fig. 8 is a sectional view (2) of the water outlet module (hot water valve) according to the third embodiment of the present invention.

1: Body

11:Accommodating space

111: upper volume

112: lower volume

13: Hot water outlet

2: Heater

3: Partition

4: water inlet pipe

41: outlet hole

5: Water level detection unit

51: Normal water level detector

52: High Water Level Detector

6:Water outlet module

7: The first cold water solenoid valve

8: Temperature detector

Claims (10)

A constant temperature hot water device, comprising: a body, the interior of the body forms an accommodating space, the accommodating space is connected to a hot water outlet, and can be used to output hot water; a heater, the heater is arranged on the body In the accommodating space; a partition, the partition is arranged in the accommodating space of the body, the partition is located above the heater, the partition is inclined, and the partition divides the accommodating space into a The upper volume and the lower volume, a gap is formed between the two sides of the partition and the two sides of the body; a water inlet pipe, the water inlet pipe is set in the accommodating space, the water inlet pipe is located below the partition board, the The water inlet pipe can deliver cold water into the body; a water level detection unit is arranged on the body, the water level detection unit extends into the accommodating space, and can be used to detect the water level; and at least one water outlet mold The water outlet module is set between the accommodating space and the hot water outlet, and the water outlet module is used to control the outlet of hot water; when the cold water is input into the body through the water inlet pipe, the cold water flow will be When the partition is blocked, the cold water is concentrated in the lower volume area below the partition, and the heater is turned on to heat, and the hot water with a higher temperature during heating will flow upwards, and flow along the partition in an upwardly inclined direction, and flow through the In the upper volume, the water flow causes the colder hot water in the upper volume to flow downward toward the downward slope of the partition, and the heater causes the flow of water flow when heating, so that the hot water achieves the effect of circulating and disturbing the uniform temperature. The constant temperature hot water device as described in Claim 1, wherein the heater is disposed near the lower end of the body, and the water outlet module is connected to a position lower than the middle of the upper volume. The constant temperature hot water device as described in claim 1, wherein the two sides of the partition are the front side and the rear side of the partition, the two sides of the body are the front side and the back side of the body, and the heating The water outlet and the water outlet module are arranged on the front side of the body. The constant temperature hot water device as described in Claim 1, wherein the water level detection unit includes a normal water level detector and a high water level detector for detecting the normal water level and the high water level respectively. The constant temperature hot water device as described in claim 1, wherein one end of the water inlet pipe is provided with a first cold water solenoid valve to control the inlet of cold water, the water inlet pipe is located between the heater and the partition, the inlet The water pipe is provided with a plurality of water outlet holes, and the water outlet holes are evenly distributed on the water inlet pipe. The constant temperature hot water device as described in claim 1, which also includes a cold water tank, a cold water connection pipe is connected between the cold water tank and the water inlet pipe, so that the cold water can be delivered to the cold water tank and the body in sequence, the The water level of the cold water tank is at the same level as the water level in the body. The cold water tank is connected to a cold water outlet, which can be used to output cold water. A second cold water solenoid valve is arranged between the cold water tank and the cold water outlet. The cold water outlet is located at It is located at the same level as the hot water outlet. The constant temperature hot water device as described in claim 1, wherein a temperature detector is arranged on the body near the hot water outlet to detect the water temperature, and when the hot water is heated to a preset temperature, the automatic control system is turned off The heater. The constant temperature hot water device as described in claim 1, wherein the water outlet module includes a valve body, a water control valve head, a micro reduction motor, an eccentric wheel, a travel frame, a positioning rod and a micro switch, the A flow channel is formed in the valve body, and one end of the flow channel is provided with a water outlet. The water control valve head is movably arranged in the valve body. The water control valve head can close and open the flow channel. The eccentric wheel is connected to the Miniature deceleration motor, the micro deceleration motor can drive the eccentric wheel to rotate, the travel frame is arranged outside the eccentric wheel, the travel frame is connected to one end of the water control valve head, the eccentric wheel can push the travel frame to link the The head of the water control valve moves, and the positioning rod is connected to the eccentric wheel. When the eccentric wheel drives the positioning rod to touch the micro switch, the micro deceleration motor is turned off, and the micro deceleration motor completes a water discharge procedure. The constant temperature hot water device as described in claim 8, wherein the water outlet module further includes a compression spring, the compression spring is in contact with the water control valve head, and a leak-proof ring is provided between the valve body and the water control valve head , the compression spring can press the water control valve head tightly on the leak-proof ring. The constant temperature hot water device according to claim 1, wherein the side of the partition near the body where the hot water outlet is provided is the lowest point, and the side of the partition far away from the body where the hot water outlet is provided is the highest point .

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