Water dispenser with heating water container having multiple protection functions

Abstract

The utility model discloses a water dispenser with a heating water container having multiple protection functions, which comprises a water inlet structure, a water outlet structure, a control module and a heating container, the upstream of the heating container is connected with the water inlet structure, and the downstream of the heating container is connected with the water outlet structure; the hot container is provided with a temperature sensor, a liquid level sensor and a temperature control switch which are electrically connected with the control module, and the temperature control switch is used for controlling emergency power failure of the hot container. The utility model has the following advantages and effects: the scheme utilizes a new mechanical structure, and has the effects of multi-protection and use safety improvement.

Description

Technical Field

[0001] The utility model relates to the technical field of water dispensers, in particular to a water dispenser with a heating water tank having multiple protection functions. Background Art

[0002] The existing Chinese patent with the publication number CN205473154U discloses a direct drinking machine with reverse osmosis filtration and step-by-step heating functions, which includes a booster pump and a reverse osmosis membrane filter element connected in sequence through a water pipe. It also includes a pressure bucket connected to the pure water outlet of the reverse osmosis membrane filter element. The water outlet of the pressure bucket is connected with a total water outlet pipe, and the total water outlet pipe is respectively connected with a normal temperature water outlet pipe and a hot water outlet pipe through a tee. A step-by-step heat tank is arranged on the hot water outlet pipe. It also includes a control circuit board, a temperature induction probe and a heating switch. The temperature induction probe is connected to the control circuit board and is used to sense the water temperature signal in the step-by-step heat tank and transmit the sensed water temperature signal to the control circuit board. The control circuit board is connected to the heating switch and controls the opening and closing of the heating switch according to the received water temperature signal. It also includes a liquid level induction switch and a water inlet solenoid valve both connected to the control circuit board. The water inlet solenoid valve is arranged on the pipeline connected to the water inlet of the step-by-step heat tank. The liquid level induction switch senses the water level height signal in the step-by-step heat tank and transmits the sensed water level height signal to the control circuit board. The control circuit board controls the opening and closing of the water inlet solenoid valve according to the received water level height signal.

[0003] However, the above direct drinking machine has the following disadvantages: The direct drinking machine has a liquid level induction switch and a water inlet solenoid valve. The liquid level induction switch is used to sense the water level in the heat tank and timely replenish water through the water inlet solenoid valve. However, the heat tank lacks a temperature control structure. When the liquid level sensor fails, the heat tank continues to heat and dry burns, which will cause the temperature in the heat tank to be too high. At this time, it is easy to burn out the heat tank, and the use is not safe enough and needs to be improved urgently. Content of the Utility Model

[0004] The purpose of the utility model is to provide a water dispenser with a heating water tank having multiple protection functions, which has the effect of improving the use safety with multiple protections.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A water dispenser with a heating water tank having multiple protection functions includes a water inlet structure, a water outlet structure, a control module and a heat tank. The heat tank is connected to the water inlet structure upstream and the water outlet structure downstream. The heat tank is provided with a temperature sensor, a liquid level sensor and a temperature control switch electrically connected to the control module. The temperature control switch is used to control the emergency power-off of the heat tank.

[0006] By adopting the above technical solution, the hot water tank is replenished with raw water through the water inlet structure during the first water replenishment. When the liquid level sensor detects that the water level in the hot water tank is replenished to a predetermined height, the water inlet structure is controlled to stop replenishing water. When hot water is needed later, the raw water is continuously replenished through the water inlet structure, and the water pressure generated by the raw water replenished in the hot water tank is used to push the hot water to be discharged from the water outlet structure for use, so that water discharge and water replenishment are carried out simultaneously, and the liquid level in the hot water tank is always kept at a predetermined height position. When the water level in the hot water tank cannot be replenished in time, continuing to take hot water at this time will cause the liquid level in the hot water tank to continue to decrease. At this time, the residual hot water in the hot water tank will be heated and evaporated to form steam. The temperature of the steam is higher than that of the hot water. When there is no water in the hot water tank, the hot water tank will dry burn inside, resulting in an excessively high temperature in the hot water tank. When the temperature control switch detects the threshold temperature in the hot water tank, the power supply to the hot water tank will be urgently cut off, so that the hot water tank can achieve the purpose of rapid cooling. In addition, the temperature sensor can provide real-time feedback on the water temperature in the hot water tank, so that the user can start the hot water tank to heat up as needed or manually cut off the power supply when the abnormal temperature rise of the hot water tank is observed, which has the effect of multiple protections to improve the safety of use.

[0007] The utility model is further configured as follows: the heat bulb includes a heating tube assembly, and the temperature control switch is controllably connected to the heating tube assembly via the control module.

[0008] By adopting the above technical solution, when the temperature in the heat tank is too high, the temperature control switch feeds back an over-temperature signal to the control module, and the control module controls the heating tube assembly to cut off the power urgently.

[0009] The utility model is further configured as follows: the heating tube assembly is arranged at the bottom of the heat container, and the liquid level sensor is arranged at the top of the heat container away from the heating tube assembly.

[0010] By adopting the above technical solution, the liquid level sensor is set at the top of the heat tank. When the liquid level in the heat tank drops, the liquid level sensor can immediately detect it and control the water inlet structure to replenish water in time through feedback from the control module. In addition, the heating tube assembly is set at the bottom of the heat tank, so that the water at the bottom of the heat tank boils first and rises, and the water with lower temperature at the top is circulated to the bottom for heating, ensuring that all the water in the heat tank can be heated to a boiling state.

[0011] The utility model is further configured as follows: the liquid level sensor comprises a first probe and a second probe which are vertically staggered, and the lowest point of the first probe is higher than the highest point of the second probe.

[0012] By adopting the above technical solution, different from the way that the two probes of the traditional liquid level sensor in the market have the same length and are arranged side by side, which easily leads to the situation that beads are hung between the two probes and affect the liquid level judgment. In the present utility model, the first probe is arranged parallel and offset above the second probe, so that there is a height difference between the first probe and the second probe, which can effectively prevent the phenomenon of beads hanging between the first probe and the second probe.

[0013] A further setting of the present utility model is that: the outer side of the heat tank is hermetically wrapped with a heat preservation layer.

[0014] By adopting the above technical solution, the addition of the heat preservation layer can lock the temperature of the heat tank and improve the heat preservation ability of the heat tank.

[0015] A further setting of the present utility model is that: the heat preservation layer includes a circumferential heat locking layer wrapped around the periphery of the heat tank and end heat locking layers arranged at the upper and lower ends of the heat tank.

[0016] A further setting of the present utility model is that: the temperature control switch is arranged outside the side wall of the heat tank, and the heat preservation layer is provided with an accommodation groove corresponding to the temperature control switch.

[0017] A further setting of the present utility model is that: an installation sleeve extends inwards at the top of the heat tank, and the temperature sensor is fixedly arranged in the installation sleeve.

[0018] By adopting the above technical solution, the detection part of the temperature sensor can extend into the heat tank through the installation sleeve to realize the accurate detection of the temperature inside the heat tank.

[0019] A further setting of the present utility model is that: the heat tank is communicated with a balance water tank through a connecting pipeline.

[0020] By adopting the above technical solution, the addition of the balance water tank can release the water pressure in the heat tank, so that the expanded water body part in the heat tank during heating can be released into the balance water tank, preventing the situation of water overflow when the heat tank is heated or splashing and scalding caused by too large water flow impact force during water connection.

[0021] A further setting of the present utility model is that: the water inlet structure is provided with a first water outlet end and a second water outlet end. The first water outlet end of the water inlet structure is connected to the heat tank through a hot water pipeline, and the second water outlet end of the water inlet structure is connected to the water outlet structure through a normal temperature water pipeline.

[0022] By adopting the above technical solution, the present utility model can not only prepare hot water for drinking, but also take normal temperature water for drinking, having the effect of multi-functionality.

[0023] In summary, the present utility model has the following beneficial effects:

[0024] A water dispenser with a heating water tank having multiple protection functions is provided with a water inlet structure, a water outlet structure, a control module and a hot water tank. The hot water tank is connected to the water inlet structure upstream and the water outlet structure downstream. The hot water tank is provided with a temperature sensor, a liquid level sensor and a temperature control switch that are electrically connected to the control module. When the hot water tank is filled with water for the first time, raw water is replenished through the water inlet structure. When the liquid level sensor detects that the water level in the hot water tank has been replenished to a predetermined height, the water inlet structure is controlled to stop replenishing water. When hot water needs to be taken later, raw water is continuously replenished through the water inlet structure, and the water pressure generated by the replenishment of raw water into the hot water tank is used to push the hot water out of the water outlet structure for use, realizing the simultaneous discharge and replenishment of water, and ensuring that the liquid level in the hot water tank always remains at a predetermined height position. When the water level in the hot water tank cannot be replenished in time, continuously taking hot water at this time will cause the liquid level in the hot water tank to continue to decrease. At this time, the remaining hot water in the hot water tank will be heated and evaporated to form steam, and the temperature of the steam is relatively higher than that of the hot water. When there is no water in the hot water tank, dry burning will occur inside the hot water tank, resulting in too high a temperature inside the hot water tank. When the temperature control switch detects the threshold temperature inside the hot water tank, the power supply to the hot water tank will be cut off emergently, so that the hot water tank can be quickly cooled. In addition, the temperature sensor can feedback the water temperature in the hot water tank in real time, enabling users to start heating the hot water tank according to needs or manually cut off the power supply when observing abnormal heating of the hot water tank, having the effect of multiple protections to improve the use safety. Description of the Drawings

[0025] Figure 1 is the internal structure diagram of the present utility model.

[0026] Figure 2 is the longitudinal sectional view of the present utility model.

[0027] Figure 3 is the longitudinal sectional view of the present utility model from another perspective.

[0028] Figure 4 is the present utility model Figure 3 partial enlarged view of area A in.

[0029] In the figure: 1. Water inlet structure; 11. Hot water pipeline; 12. Normal temperature water pipeline; 2. Water outlet structure; 3. Hot water tank; 30. Heating pipe assembly; 31. Temperature sensor; 32. Liquid level sensor; 321. First probe; 322. Second probe; 33. Temperature control switch; 34. Heat preservation layer; 341. Circumferential heat insulation layer; 3411. Accommodation groove; 342. End heat insulation layer; 35. Installation sleeve; 4. Control module; 5. Balance water tank; 51. Connection pipeline. Detailed Description of the Invention

[0030] The present utility model will be further described below with reference to the accompanying drawings.

[0031] A water dispenser with a heating water tank having multiple protection functions, as Figure 1As shown in the figure, it includes a water inlet structure 1, a water outlet structure 2, a control module 4 and a hot water tank 3. The hot water tank 3 is connected to the water inlet structure 1 upstream and the water outlet structure 2 downstream. The hot water tank 3 is provided with a temperature sensor 31, a liquid level sensor 32 and a temperature control switch 33 that are electrically connected to the control module 4. The temperature control switch 33 is used to control the emergency power-off of the hot water tank 3. An installation sleeve 35 extends inward from the top of the hot water tank 3, and the temperature sensor 31 is fixed in the installation sleeve 35, so that the detection part of the temperature sensor 31 can extend into the hot water tank 3 through the installation sleeve 35 to achieve accurate detection of the temperature inside the hot water tank 3. The hot water tank 3 is connected to a balance water tank 5 through a connecting pipeline 51. The addition of the balance water tank 5 can release the water pressure in the hot water tank 3, so that the expanded water body part during heating in the hot water tank 3 can be released into the balance water tank 5, preventing water overflow when the hot water tank 3 is heated or splashing and scalding caused by too large water flow impact when receiving water. The water inlet structure 1 is provided with a first water outlet end and a second water outlet end. The first water outlet end of the water inlet structure 1 is connected to the hot water tank 3 through a hot water pipeline 11, and the second water outlet end of the water inlet structure 1 is connected to the water outlet structure 2 through a normal temperature water pipeline 12, so that the utility model can not only prepare hot water for drinking but also receive normal temperature water for drinking, achieving the effect of multifunctionality.

[0032] As Figure 2 shown, the hot water tank 3 includes a heating tube assembly 30. The temperature control switch 33 is connected to the heating tube assembly 30 through the control module 4 for control. When the temperature in the hot water tank 3 is too high, the temperature control switch 33 feeds back an over-temperature signal to the control module 4, and the control module 4 controls the heating tube assembly 30 to cut off the power emergently. The heating tube assembly 30 is arranged at the bottom of the hot water tank 3, and the liquid level sensor 32 is arranged at the top of the hot water tank 3 away from the heating tube assembly 30. By setting the liquid level sensor 32 at the top of the hot water tank 3, when the liquid level in the hot water tank 3 drops, the liquid level sensor 32 can immediately detect and feedback through the control module 4 to control the water inlet structure 1 to replenish water in time. In addition, by setting the heating tube assembly 30 at the bottom of the hot water tank 3, the water at the bottom of the hot water tank 3 boils first and rises upward, and the relatively cold water above is circulated to the bottom for heating, ensuring that all the water in the hot water tank 3 can be heated to the boiling state.

[0033] As Figure 3 - 4 shown, the liquid level sensor 32 includes a first probe 321 and a second probe 322 that are arranged vertically and offset. The lowest point of the first probe 321 is higher than the highest point of the second probe 322. Different from the traditional liquid level sensor 32 on the market where the two probes are of the same length and arranged side by side, which is prone to the situation of bead hanging between the two probes affecting the liquid level judgment, in the utility model, the first probe 321 is arranged parallel and offset above the second probe 322, so that there is a height difference between the first probe 321 and the second probe 322, effectively preventing the phenomenon of bead hanging between the first probe 321 and the second probe 322.

[0034] As Figure 1 - 3 shown, the hot water tank 3 is externally sealed and wrapped with a heat insulation layer 34. The addition of the heat insulation layer 34 can lock the temperature of the hot water tank 3 and improve the heat preservation ability of the hot water tank 3. The heat insulation layer 34 includes a circumferential temperature locking layer 341 wrapped around the periphery of the hot water tank 3 and end temperature locking layers 342 provided at the upper and lower ends of the hot water tank 3. The temperature control switch 33 is provided outside the side wall of the hot water tank 3, and the heat insulation layer 34 is provided with a receiving groove 3411 corresponding to the temperature control switch 33.

[0035] The basic working principle of the present utility model is as follows: When the hot water tank 3 is filled with raw water for the first time through the water inlet structure 1, when the liquid level sensor 32 detects that the water level in the hot water tank 3 has been replenished to a predetermined height, it controls the water inlet structure 1 to stop replenishing water. Subsequently, when hot water needs to be taken, raw water is continuously replenished through the water inlet structure 1, and the water pressure generated by the replenishment of raw water into the hot water tank 3 is used to push the hot water out through the water outlet structure 2 for use, realizing the simultaneous discharge and replenishment of water, and ensuring that the liquid level in the hot water tank 3 always remains at the predetermined height position. When the water level in the hot water tank 3 cannot be replenished in time, continuously taking hot water at this time will cause the liquid level in the hot water tank 3 to continue to decrease. At this time, the remaining hot water in the hot water tank 3 will be heated and evaporated to form steam, and the temperature of the steam is relatively higher than that of the hot water. When there is no water in the hot water tank 3, dry burning will occur inside the hot water tank 3, resulting in too high a temperature inside the hot water tank 3. When the temperature control switch 33 detects the threshold temperature inside the hot water tank 3, it will urgently cut off the power supply of the hot water tank 3 to achieve the purpose of quickly cooling the hot water tank 3. In addition, the temperature sensor 31 can timely feedback the water temperature in the hot water tank 3, enabling the user to start the hot water tank 3 to heat up according to needs or manually cut off the power supply when observing abnormal temperature rise of the hot water tank 3, having the effect of multiple protections to improve the use safety.

[0036] The above is only the preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present utility model are included in the scope of the patent application of the present utility model.

Claims

1. A water dispenser with a heated water tank and multiple protection functions, characterized in that: The invention comprises a water inlet structure (1), a water outlet structure (2), a control module (4) and a heat bulb (3); the heat bulb (3) is connected to the water inlet structure (1) upstream and connected to the water outlet structure (2) downstream; the heat bulb (3) is provided with a temperature sensor (31) electrically connected to the control module (4), a liquid level sensor (32) and a temperature control switch (33); the temperature control switch (33) is used to control the emergency power off of the heat bulb (3).

2. A water dispenser with a heated water tank and multiple protection functions according to claim 1, characterized in that: The heat bulb (3) comprises a heating tube assembly (30), and the temperature control switch (33) is controllably connected to the heating tube assembly (30) via the control module (4).

3. A water dispenser with a heated water tank and multiple protection functions according to claim 2, characterized in that: The heating tube assembly (30) is arranged at the bottom of the heat container (3), and the liquid level sensor (32) is arranged at the top of the heat container (3) away from the heating tube assembly (30).

4. The water dispenser with a heated water tank and multiple protection functions according to claim 1, characterized in that: The liquid level sensor (32) comprises a first probe (321) and a second probe (322) which are arranged in a vertically staggered manner, and the lowest point of the first probe (321) is higher than the highest point of the second probe (322).

5. The water dispenser with a heated water tank and multiple protection functions according to claim 1, characterized in that: The heat container (3) is sealed with a heat-insulating layer (34) outside.

6. A water dispenser with a heated water tank and multiple protection functions according to claim 5, characterized in that: The heat-insulating layer (34) comprises an annular heat-locking layer (341) wrapped around the periphery of the heat-insulating container (3), and end heat-locking layers (342) provided at the upper and lower ends of the heat-insulating container (3).

7. The water dispenser with a heated water tank and multiple protection functions according to claim 5, characterized in that: The temperature control switch (33) is arranged outside the side wall of the heat bulb (3), and the heat insulation layer (34) is provided with a receiving groove (3411) corresponding to the temperature control switch (33).

8. The water dispenser with a heated water tank and multiple protection functions according to claim 1, characterized in that: A mounting sleeve (35) is provided on the top of the heat bulb (3) and extends inwardly, and the temperature sensor (31) is fixedly arranged in the mounting sleeve (35).

9. The water dispenser with a heated water tank and multiple protection functions according to claim 1, characterized in that: The heat tank (3) is connected to a balancing water tank (5) via a connecting pipeline (51).

10. The water dispenser with a heated water tank and multiple protection functions according to claim 1, characterized in that: The water inlet structure (1) is provided with a first water outlet end and a second water outlet end; the first water outlet end of the water inlet structure (1) is connected to the heat tank (3) via a hot water pipeline (11); and the second water outlet end of the water inlet structure (1) is connected to the water outlet structure (2) via a normal temperature water pipeline (12).

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