CN114766914A - Heating assembly, heating method thereof and water dispenser - Google Patents

Abstract

The heating assembly comprises at least one third sensing part which is abutted against the outer surface of the heating part and can measure the temperature of the abutted part of the third sensing part and feed back the temperature to the control assembly. The temperature of the heating part is detected, so that the reason of the abnormal outlet water temperature can be judged. The invention also provides a monitoring method for the heating assembly and a water dispenser adopting the monitoring method and the heating assembly.

Description

Heating assembly, heating method thereof and water dispenser

Technical Field

The invention relates to the field of household appliances, in particular to a heating assembly, a heating method thereof and a water dispenser.

Background

The instant heating type water dispenser heats simultaneously in the process of water outlet, so that the temperature of the water outlet needs to be paid attention to all the time. However, in the water pipeline of the water dispenser, scale is easily formed in the heating process, and if the scale is not removed in time, the water dispenser can be failed. Currently, an effective scale monitoring means is lacked, or the monitoring cost is too high. In addition, when the instant drinking water product is used in plateau areas, the phenomenon that the use of customers is affected or the safety of the customers is endangered due to steam spraying and the like is easily caused under the influence of a low boiling point, and an effective plateau self-adaptive control technology is lacked or the hardware cost of the control technology is overhigh at present. Therefore, it is necessary to design a device to help determine the cause of the abnormal water temperature.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a heating assembly, a monitoring method thereof and a water dispenser.

A heating assembly according to an embodiment of a first aspect of the present invention includes a heat generation tube assembly including a flow passage and a heat generation portion for heating water in the flow passage, the heat generation portion being disposed around the flow passage; the water pump assembly is used for pumping water into the flow channel; the control assembly is electrically connected with the heating part group to control the switch of the heating part and the heating power of the heating part and/or the control assembly is electrically connected with the water pump assembly to control the water pumping speed of the water pump; a first sensing member capable of measuring a water temperature of the water flowing into the flow passage and feeding back to the control module; a second sensing member capable of measuring a temperature of the water flowing out of the flow passage and feeding back to the control assembly; and at least one third sensing component is abutted and arranged on the outer surface of the heating part, and the third sensing component can measure the temperature at the abutted part of the third sensing component and the outer surface of the heating part and feed back the temperature to the control assembly.

The heating assembly according to the embodiment of the first aspect of the invention has at least the following advantages: therefore, the detection of the temperature of the heat generating part can help to determine the cause of the outlet water temperature abnormality.

In some embodiments, the heat generating portion includes a sleeve, the heat generating element is disposed on a wall of the sleeve, the heat generating tube assembly further includes a core, the sleeve is sleeved outside the core, and the sleeve and the core enclose to form the flow channel.

In some embodiments, the flow channel has a first inlet and a first outlet, the flow channel includes a spiral portion arranged in a spiral shape, and a pitch of the spiral portion gradually decreases in a direction from the first inlet to the first outlet.

In some embodiments, the heating assembly further comprises a pressurizing assembly for increasing the air pressure within the heat-generating tube assembly.

The heating method of the heating module according to the embodiment of the second aspect of the present invention is applied to the heating module according to the embodiment of the first aspect of the present invention. The heating method comprises the following steps of,

acquiring a first temperature fed back by a first temperature sensing component, a second temperature fed back by a second temperature sensing component and a third temperature fed back by a third temperature sensing component under an ideal working condition;

obtaining the corresponding relation of the first temperature, the second temperature and the third temperature under an ideal working condition;

also comprises that when the heating part heats the water in the flow passage,

the following steps are sequentially carried out:

A. acquiring heating power of a heating part, and acquiring a first temperature, a second temperature, a third temperature and a preset second temperature;

B. comparing the second temperature with a preset second temperature;

if the second temperature is lower than the preset second temperature, entering step C;

C. obtaining an expected third temperature according to the first temperature, the second temperature preset value and the corresponding relation among the first temperature, the second temperature and the third temperature, and comparing the third temperature with the expected third temperature;

issuing an alert if the third temperature is greater than the expected third temperature.

In some embodiments, step C further comprises, if the third temperature is not higher than the expected third temperature, adjusting the heat generation power of the heat generating portion and/or the water pumping speed, and re-acquiring the second temperature, and if the second temperature is higher than before, adjusting the heat generation power and/or the water pumping speed until the second temperature meets a preset value; and if the second temperature is not increased compared with the previous temperature, sending out a fault alarm.

In some embodiments, step C further comprises, if the third temperature is greater than the expected third temperature,

increasing the heating power of the heating part or reducing the water pumping speed of the water pump, then acquiring the second temperature again, and if the second temperature is increased compared with the first temperature, sending out a scale removal prompt; and if the second temperature is not increased than before, sending a plateau mode prompt and/or automatically entering the plateau mode.

In some embodiments, step B further comprises: if the second temperature is higher than the preset second temperature, entering the step D; the monitoring step further comprises step D: the heating power of the heating part is reduced and/or the water pumping speed is increased, then the second temperature is obtained again, and if the second temperature is reduced compared with the previous temperature, the heating power and/or the water pumping speed are/is automatically adjusted until the second temperature meets the preset value; and if the second temperature is not lower than the previous temperature, sending out a fault prompt.

In some embodiments, the step C further includes: after the scale removal prompt is sent out, adjusting the heating power of the heating part and/or reducing the water pumping speed of the water pump until the second temperature meets a preset value; the high altitude pattern is that,

when the heating assembly comprises a pressurizing assembly, increasing the air pressure in the heating tube assembly to enable the second temperature to accord with a preset value, and when the heating assembly does not comprise the pressurizing assembly, placing the heating tube assembly in a pressurizing environment to enable the second temperature to accord with the preset value;

and/or automatically lowering the second temperature preset value.

The water dispenser according to the third aspect embodiment of the invention comprises the heating assembly according to the first aspect embodiment of the invention and adopts the heating method of the heating assembly according to the second aspect embodiment of the invention.

In some embodiments, the third sensor is provided in plurality.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the heating assembly of the present invention;

FIG. 2 is a schematic view of the heating assembly with a portion of the housing removed;

FIG. 3 is a schematic diagram of the connection structure of a heating pipeline assembly, a water pump assembly and a water outlet joint assembly in some embodiments;

FIG. 4 is an exploded view of the structure of FIG. 3;

FIG. 5 is an exploded view of the water pump assembly mounted to the housing;

FIG. 6 is a schematic structural view of the support assembly;

FIG. 7 is a schematic view of the heating conduit assembly with the housing removed;

FIG. 8 is a schematic view of a variable pitch heating conduit assembly;

FIG. 9 is a schematic view of a heat generating portion disassembled from a core;

FIG. 10 is a schematic view of a sensor unit mounting position;

fig. 11-13 are schematic views of a mounting bracket, a heat tube assembly and their mounting and mating relationships.

Reference numerals are as follows:

a heating assembly 1;

the heat-generating pipe assembly 2, a flow channel 202, a first inlet 203, a first outlet 204, a spiral structure 205, a heat-generating part 206, a connecting part 207, a water inlet 208, a water outlet 209, a core part 210, a clamping rib 211, a threaded hole 211 and a threaded part 212;

the water pump comprises a water pump component 3, a pump body 301, a water inlet connector 302, a support ring 303, an inner wall 304 of the support ring, a buffer piece 305, a clamping rib 306, a supporting leg 307, a conical head 308, a butting part 309 and an annular groove 310;

the water outlet joint component 4 and the water outlet pipe 401;

a housing 5, a support ear 501, a through hole 502 and a heat dissipation hole 503;

a first sensing part 601, a second sensing part 602, a third sensing part 603 and an anti-dry heating temperature controller 604;

installing support 7, joint groove 701, through-hole 702, mounting hole 703, binding post 704.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, inner, outer, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the first, second and third are only used for distinguishing technical features, and are not understood to indicate or imply relative importance or to implicitly indicate the number of indicated technical features or to implicitly indicate the precedence of the indicated technical features.

In the description of the present invention, unless otherwise explicitly defined, terms such as set, mounted, connected, assembled, matched and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention by combining the specific contents of the technical solutions.

The heating assembly 1 according to the first aspect of the present invention, referring to fig. 1-10, includes a heat generating tube assembly 2, the heat generating tube assembly 2 includes a flow channel 202 and a heat generating portion 206, and the heat generating portion 206 is used for heating water in the flow channel 202. This arrangement is typically used for the tankless heating module 1, but of course, when the flow path 202 is thick enough, it can be considered as a container, and it can also be used as a reservoir heating module 1. The heat generating portion 206 is disposed around the flow channel 202 so as to sufficiently transfer heat to the water in the flow. And the water pump assembly 3 is used for pumping water into the flow channel 202. And the control component is electrically connected with the heating part 206 group to control the switch of the heating part 206 and the heating power of the heating part 206 and/or the control component is electrically connected with the water pump component 3 to control the water pumping speed of the water pump, so that the water outlet temperature and/or the water outlet speed are/is controlled. The water pump further comprises a first sensing part 601, wherein the first sensing part 601 can measure the water temperature of the water flowing into the flow channel 202 and feed back the water temperature to the control assembly, and the heating power and/or the water pumping speed can be determined by measuring the initial temperature of the pumped water and combining the set water outlet temperature and/or the set water outlet speed. A second sensing element 602 is also included, and the second sensing element 602 is capable of measuring the temperature of the water exiting the flow channel 202 and feeding back to the control assembly, i.e., measuring the temperature of the water to determine whether the temperature is reached. Many times, the outlet water temperature may not meet the set value, which may be caused by a variety of reasons, one of which may be that the heat of the heat generating part 206 cannot be sufficiently transferred to the water in the flow channel 202 due to the formation of scale on the wall of the flow channel 202, resulting in an excessively low outlet water temperature; in this case, since the heat of the heat generating part 206 cannot be sufficiently transferred, the temperature thereof is high; it can be seen that in this example, a reference for determining the cause of the abnormality in the water temperature can be provided by measuring the temperature of the heat generating portion 206. The water heater further comprises a third sensing component 603, at least one third sensing component 603 is abutted and arranged on the outer surface of the heating part 206, and the third sensing component 603 can measure the temperature of the abutted part of the third sensing component 603 and the outer surface of the heating part 206 and feed back the temperature to the control assembly, so that the temperature of the heating part 206 can be measured, and the reason can be found out when the water temperature is abnormal.

In some embodiments, referring to fig. 10, the first sensing component 601, the second sensing component 602, and the third sensing component 603 are each ntc temperature sensors. In some embodiments, the third sensing member 603 is located at a distance from the second sensing member 602 that is less than the distance from the third sensing member 603 to the first sensing member 601, i.e., the third sensing member 603 is located proximate to the first outlet 204. It is understood that the number of the third sensing parts 604 may be more than one, and the installation position thereof may be adjusted as needed.

In some embodiments, referring to fig. 8-9, the heat generating portion 206 includes a sleeve, the heat generating element is disposed on a wall of the sleeve, the heat generating tube assembly 2 further includes a core 210, the sleeve is disposed outside the core 210, and the sleeve and the core 210 enclose to form the flow channel 202. In some embodiments, the sleeve is a thick film heat pipe.

In some embodiments, the heating assembly 1 further comprises a pressurizing assembly for increasing the air pressure within the heat generating tube assembly 2. In some embodiments, referring to fig. 1-5, a heating assembly 1 includes a heat-generating tube assembly 2. The heating tube assembly 2 includes a heating member for heating water in the flow passage 202 and the flow passage 202. This arrangement is typically used for the tankless heating assembly 1, but of course, when the flow path 202 is thick enough, it can be considered as a container, and it can also be used as a reservoir type heating assembly 1. The flow channel 202 is provided with a first inlet 203 and a first outlet 204. A water pump assembly 3, the water pump assembly 3 being for pumping water into the first inlet 203. The cup further comprises a water outlet connector assembly 4, the water outlet connector assembly 4 is connected to the first outlet 204, water can be directly led out to the cup from the water outlet connector assembly 4, and a water pipe can be mounted on the water outlet connector assembly 4 to lead out the water. The water pump assembly 3 comprises a pump body 301 and a water inlet joint 302, wherein the pump body 301 is a power part of the water pump. The water inlet connector 302 is connected to the first inlet 203 and to the pump body 301 so that the water pump can pump water into the first inlet 203. At least one end of the pump body 301 is suspended and the middle portion of the pump body 301 is supported by a support assembly. Like this, at least one end of pump body 301 is unsettled to unsettled tip does not receive the vibration influence, and the vibration only can be conducted to the support piece in middle part, can reduce the vibration. In some embodiments, one end of the pump body 301 is connected to the water inlet connector 302 without other supports, and the other end of the pump body 301 is completely suspended, so that both ends of the pump body 301 have no other supports in the up-down direction.

In some embodiments, referring to fig. 7-9, portions of the flow channel 202 are enclosed by the heat generating portion 206 and a core 210. The outer circumference of the core 210 comprises a helical structure 205 so that the flow channels 202 are also helically arranged. A water inlet 208 is provided at one end of the spiral structure 205 to communicate with the first inlet 203, and a water outlet 209 is provided at the other end of the spiral structure 205 to communicate with the second outlet 204. The heat generating portion 206 is a cylindrical structure, and when the heat generating portion 206 is fitted on the core portion 210, the first inlet 203, the water inlet 207, the spiral structure 205 and the heat generating portion 206 form a flow channel 202, a water outlet 208 and a second outlet 208, which form a complete water flow channel. The spiral arrangement makes the water in the flow passage 202 contact with the heating element for a long time and with a large area. In some embodiments, the heat generating portion 206 is a thick film heat generating component, and it is understood that the heat generating portion 206 may be other suitable heat generating elements. In some embodiments, the flow channel 202 may also be disposed around the heat generating member. In some embodiments, the core 210 is integrally formed with the heat-generating portion 206, it being understood that the core 210 may also be removably coupled to the heat-generating portion 206. For example, one end of the core 210 is detachably connected to the other components of the heat generating tube assembly 2 through the connection portion 207, and the connection portion 207 may be a screw connection portion.

In some embodiments, referring to FIG. 8, the flow passage 202 functions to restrict flow. For example, in some embodiments, the flow channel 202 may be configured such that the flow rate of water flowing therethrough is slower as it approaches the first outlet 204, which may allow for a longer heating time near the first outlet 204, thereby stabilizing the temperature at the first outlet 204 and allowing the flow channel 202 near the first outlet 204 to fill with water to prevent dry-out. This can be achieved in a number of ways. For example, the cross-section of the flow channel 202 near the first outlet 204 may be made smaller, i.e., tapered, so that the flow of water may slow and fill the section of the flow channel 202. For another example, the helical structure 205 has a smaller pitch closer to the first outlet, and as shown in fig. 8, the pitch b is smaller than the pitch a, so that the water flow rate can be reduced, the flow channel 202 at the position can be filled with water to prevent dry burning, the contact time with the heat generating member can be increased, the thermal efficiency can be improved, and the temperature at the first outlet 204 can be more stable.

In some embodiments, referring to fig. 6, the support assembly comprises a set of support rings 303 mounted on the pump body 301, the support rings 303 being supported by the housing 5 of the heating assembly 1 via support feet 307. The support ring 303 is used to support the pump body 301 and receive vibration of the pump body 301. In some embodiments, the supporting ring 303 is capable of damping vibrations of the pump body 301, and the inner wall 304 of the supporting ring is provided with a damper 305. In some embodiments, the buffer 305 is a cushion protruding from the inner wall 304 of the support ring, such as a resilient pad, such as a sponge pad. It will be appreciated that the buffer 305 may also be a spring mounted on the inner wall 304 of the support ring.

In some embodiments, referring to fig. 6, the inner wall 304 of the support ring is further provided with a snap portion, and the snap portion is provided at one side of the buffer 305 in the axial direction of the support ring 303. The clamping portion is used for ensuring that the support ring 303 can be stably sleeved on the pump body 301, and can prevent the pump body 301 from rotating or sliding relative to the support ring 303 when working. In some embodiments, the clamping portion includes a clamping rib 306 protruding from the inner wall 304 of the support ring, the clamping ribs 306 are disposed at intervals on the inner wall 304 of the support ring, and the clamping rib 306 can clamp and fix the pump body 301 when the support ring 303 is sleeved on the pump body 301. In some embodiments, the cushion pad is closer to the axis of the support ring 303 than the clamping rib 306, that is, the thickness of the cushion pad is thicker than the clamping rib 306, and when the cushion pad is sleeved on the pump body 301, the pump body 301 presses the cushion pad to be substantially flush with the clamping rib 306. In some embodiments, the snap ribs 306 are also made of an elastic material.

In some embodiments, referring to fig. 5 to 6, the supporting leg 307 includes a conical head 308, an abutting portion 309 is disposed above the conical head 308, an annular groove 310 is disposed between the abutting portion 309 and the conical head 308, a supporting ear 501 is disposed on the housing 5, the supporting ear 501 is provided with a through hole 502, and the supporting ear is inserted into the through hole 502. During installation, the tapered head 308 is inserted into the through hole 502 first to serve as a guide until the abutment 309 abuts against the support lug 501. The circumferential size of the head of the tapered head portion 308 is slightly smaller than that of the through hole 502, the circumferential size of the tail portion close to the abutting portion 309 is slightly larger than that of the through hole 502, and the circumferential size of the abutting portion 309 is larger than that of the through hole 502, so that when the tail portion of the tapered head portion 308 is inserted, a little resistance exists, and when the abutting portion 309 abuts against the supporting ear 501, the supporting ear 501 is clamped at the position of the annular groove 310, that is, the supporting leg 307 is limited by the abutting portion 309 and the tapered head portion 308 in the vertical direction relative to the supporting ear 501.

In some embodiments, referring to fig. 1-4, the water outlet connector assembly 4 comprises a water outlet pipe 401, and the extending direction of the water outlet pipe 401 is perpendicular to the extending direction of the heat generating member. The water outlet joint component 4 can rotate relative to the heating tube component 2, so when the extending direction of the water outlet tube 401 is perpendicular to the extending direction of the heating element, the water outlet direction of the water outlet tube 401 can be adjusted to any direction perpendicular to the extending direction of the heating element, that is, the water outlet tube 401 can be adjusted to the left or the right.

In some embodiments, referring to fig. 1-2, the water pump assembly 3 and the heat pipe assembly 2 are arranged in an L shape, so that the installation position can be saved. The housing 5 is provided with heat dissipation holes 503 to facilitate heat dissipation.

In some embodiments, the heating assembly 1 further comprises an anti-dry heating thermostat 604. The dry heating preventing temperature controller 604 is abutted against the outer surface of the heating part 206, when the temperature of the outer surface of the heating part 206 is too high, a signal is automatically fed back to the control component, and the control component immediately sends out an alarm signal and controls the heating part 206 to stop heating. The anti-dry temperature controller 604 may be a mechanical type or an electronic type. In some embodiments, the anti-dry heating thermostat 604 and the third sensing part 603 are disposed on a mounting bracket 7. The both ends of installing support 7 are provided with the joint portion that has joint groove 701, and the both ends of heating tube subassembly are provided with joint muscle 211, joint groove 201 and joint muscle 211 joint. In some embodiments, the outer surface of the heat-generating tube assembly 2 is further provided with a screwing portion 212, the screwing portion 212 is provided with a threaded hole 211, the mounting bracket 7 is provided with a through hole 702, and a screw member can be screwed into the threaded hole 211 through the through hole 702 for further positioning. The screw-connection portion 212 may be formed integrally with the heat-generating tube assembly 2, or may be connected by welding or the like. In some embodiments, the mounting bracket 7 is further provided with a mounting hole 703, and the dry-heating preventing temperature controller 604 passes through the mounting hole 703 and abuts against the outer surface of the heating portion 206. In some embodiments, a terminal 704 is also provided on the mounting bracket 7. The connection terminal 704 is electrically connected to the heating portion 206, and a power supply is connected from the connection terminal 704 to supply power to the heating portion 206.

The heating method of the heating module 1 according to the embodiment of the second aspect of the present invention is applied to the heating module 1 according to the embodiment of the first aspect of the present invention. The heating method comprises the steps of obtaining a first temperature fed back by the first temperature sensing component, a second temperature fed back by the second temperature sensing component and a third temperature fed back by the third temperature sensing component under an ideal working condition.

Obtaining the corresponding relation of the first temperature, the second temperature and the third temperature under an ideal working condition;

it also includes that, each time the heating part heats the water in the flow channel 202,

the following steps are sequentially carried out:

A. the method comprises the steps of obtaining heating power of a heating part, and obtaining a first temperature, a second temperature, a third temperature and a preset second temperature, wherein the preset second temperature is a preset outlet water temperature;

B. comparing the second temperature with a preset second temperature;

if the second temperature is consistent with the preset second temperature, returning to the step A;

if the second temperature is lower than the preset second temperature, entering the step C;

C. obtaining an expected third temperature according to the first temperature, the second temperature preset value and the corresponding relation of the first temperature, the second temperature and the third temperature, and comparing the third temperature with the expected third temperature;

if the third temperature is higher than the expected third temperature, an alert is issued.

That is, each time heating, it is first verified whether the water temperature (i.e. the second temperature) meets the requirement, if not, the difference between the third temperature and the expectation is continuously judged, if the third temperature is higher, the difference is probably caused by scale formation and poor heat transfer. Of course, the high pressure may cause the boiling point to be too low, and the set water temperature may be higher than the boiling point under the local atmospheric pressure, which may cause the water temperature not to rise continuously, resulting in poor heat transfer of the heat generating part. For any reason, a reminder is issued in this case, and details will be continued as to which reminder is issued. It can be understood that, in the step B, the technical feature "if the second temperature matches the preset second temperature, the step a is not required to be returned," if the second temperature matches the preset second temperature, the step a may not be returned, for example, the step a may be directly ended, and the step a is restarted after the next cycle, the start of the cycle may be started by starting heating, or a cycle time may be preset, for example, the cycle is 10 seconds, if the step is not completed in one cycle, the corresponding step is continuously executed, and if the cycle is completed, the step a is continuously started by waiting for 10 seconds.

As mentioned above, the presence of scale and the high atmospheric pressure and boiling point may cause poor heat transfer, however, there is a difference between these two reasons. When the scale exists, the temperature can be continuously raised by increasing the power or reducing the water flow speed. When the plateau boiling point is lower, the outlet water temperature can not be changed no matter how to heat. According to the above principle, in some embodiments, the step C further includes, if the third temperature is higher than the expected third temperature, increasing the heating power of the heating portion and/or decreasing the water pumping speed of the water pump, and then acquiring the second temperature again, and if the second temperature is higher than the first temperature, issuing a scale removal reminder; if the second temperature is not elevated compared to the previous, a plateau mode alert is issued and/or the plateau mode is automatically entered. Namely, if the power and the water flow speed can be adjusted to realize temperature rise, the reason of the scale can be judged, at the moment, the heating power and the water flow speed are adjusted to enable the second temperature to meet the requirement, and the user can subsequently select proper time to descale. And if the power and the water flow speed cannot be increased, plateau reminding is sent out. And when the condition exists, automatically entering a plateau mode. In some embodiments, step C further comprises: after the scale removal prompt is sent out, the heating power of the heating part is adjusted and/or the water pumping speed of the water pump is reduced until the second temperature meets the preset value; the plateau mode is that when the heating assembly 1 includes the pressurizing assembly, the air pressure in the heating tube assembly 2 is increased to make the second temperature meet the preset value, and when the heating assembly 1 does not include the pressurizing assembly, the heating tube assembly 2 is placed in the pressurizing environment to make the second temperature meet the preset value. The plateau mode may be a mode in which the preset second temperature is directly lowered to meet safe use in the plateau region.

In some embodiments, the step C further includes, if the third temperature is not higher than the expected third temperature, increasing the heating power of the heat generating portion and/or decreasing the water pumping speed, and obtaining the second temperature again, and if the second temperature is higher than the previous temperature, adjusting the heating power and/or the water pumping speed until the second temperature meets a preset value, and returning to the step a after meeting the preset value, or performing the step a again after the next cycle starts; if the second temperature is not increased more than before, a fault alert is issued. If the second temperature is lower and the third temperature is not higher, the heat transfer is smoother, the reason that the second temperature (namely the water outlet temperature) is lower is probably because the heating power is insufficient, the second temperature can meet the requirement by automatically adjusting the heating power and the water pumping speed, and if the second temperature is not changed after adjustment, the fault possibly exists; possible failure reasons are that the heat generating part can not generate heat normally or the second sensing part 602 can not feed back the temperature normally, and a failure warning needs to be sent out at this time.

In some embodiments, step B further comprises: if the second temperature is higher than the preset second temperature, entering the step D; the monitoring step further comprises step D: the heating power of the heating part is reduced and/or the water pumping speed is increased, then the second temperature is obtained again, if the second temperature is reduced compared with the first temperature, the heating power is automatically adjusted and/or the second temperature is in accordance with a preset value, the heating power can be directly returned to the step A after the second temperature is in accordance with the preset value, and the heating power can be started from the step A again after the next period is started; if the second temperature is not lower than before, a fault alert is issued. The temperature of the outlet water can be lower or lower. When the water temperature is higher than the set temperature, firstly, the heating power and/or the water flow speed are adjusted to observe whether the water temperature can be normal or not, and if the second temperature cannot be normal, a fault prompt is sent out. Such a failure may be a failure of both the heat generating part and the sensing part, and further investigation is required.

A water dispenser according to an embodiment of the third aspect of the invention comprises a heating assembly 1 according to the embodiment of the first aspect of the invention and employs a heating method according to the embodiment of the first aspect of the invention.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A heating assembly, comprising

The heating pipe assembly comprises a flow channel and a heating part, the heating part is used for heating water in the flow channel, and the heating part is arranged around the flow channel;

the water pump assembly is used for pumping water into the flow channel;

the control assembly is electrically connected with the heating part group to control the switch of the heating part and the heating power of the heating part and/or the control assembly is electrically connected with the water pump assembly to control the water pumping speed of the water pump;

a first sensing part capable of measuring a water temperature of the water flowing into the flow passage and feeding back to the control assembly;

a second sensing member capable of measuring a temperature of the water flowing out of the flow passage and feeding back to the control assembly;

and at least one third sensing component which is abutted against the outer surface of the heating part and can measure the temperature at the abutted part of the third sensing component and the outer surface of the heating part and feed back the temperature to the control assembly.

2. The heating assembly of claim 1, wherein the heat generating portion comprises a sleeve, the heat generating element is disposed on a wall of the sleeve, the heat generating tube assembly further comprises a core, the sleeve is disposed outside the core, and the sleeve and the core enclose the flow channel.

3. A heating assembly as claimed in claim 1 or 2, in which the flow passage has a first inlet and a first outlet, the flow passage comprising a spiral arranged in a spiral, the pitch of the spiral tapering in a direction from the first inlet to the first outlet.

4. The heating assembly of claim 1, further comprising a pressurizing assembly for increasing air pressure within the heat-generating tube assembly.

5. A heating method of a heating module for a heating module according to any one of claims 1 to 4,

the heating method comprises the following steps of,

acquiring a first temperature fed back by the first temperature sensing component, a second temperature fed back by the second temperature sensing component and a third temperature fed back by the third temperature sensing component under an ideal working condition;

obtaining the corresponding relation of the first temperature, the second temperature and the third temperature under an ideal working condition;

also comprises that when the heating part heats the water in the flow passage,

the following steps are carried out in sequence:

A. acquiring heating power of a heating part, and acquiring a first temperature, a second temperature, a third temperature and a preset second temperature;

B. comparing the second temperature with a preset second temperature;

if the second temperature is lower than the preset second temperature, entering step C;

C. obtaining an expected third temperature according to the first temperature, the second temperature preset value and the corresponding relation among the first temperature, the second temperature and the third temperature, and comparing the third temperature with the expected third temperature;

issuing an alert if the third temperature is greater than the expected third temperature.

6. The heating method of a heating unit as claimed in claim 5,

step C further comprises increasing the heating power of the heat generating portion and/or decreasing the water pumping speed if the third temperature is not higher than the expected third temperature, and re-acquiring the second temperature,

if the second temperature is increased compared with the previous temperature, adjusting the heating power and/or the water pumping speed until the second temperature meets a preset value;

and if the second temperature is not increased compared with the previous temperature, sending out a fault alarm.

7. The heating method of a heating unit as claimed in claim 5,

the step C also comprises the following steps of,

if the third temperature is higher than said expected third temperature,

the heating power of the heating part is increased and/or the water pumping speed of the water pump is reduced, then the second temperature is obtained again,

if the second temperature is higher than the previous temperature, sending out a scale removal prompt;

and if the second temperature is not increased than before, sending a plateau mode prompt and/or automatically entering the plateau mode.

8. The heating method of a heating unit as claimed in claim 5,

the step B also comprises the following steps: if the second temperature is higher than the preset second temperature, entering step D;

the monitoring step further comprises the step D: the heating power of the heating part is reduced and/or the water pumping speed is increased, and then the second temperature is obtained again,

if the second temperature is reduced compared with the previous temperature, automatically adjusting the heating power and/or the water pumping speed until the second temperature is met;

and if the second temperature is not lower than the previous temperature, sending out a fault prompt.

9. The heating method of a heating unit as claimed in claim 7,

the step C also comprises the following steps: after the scale removal prompt is sent out, adjusting the heating power of the heating part and/or reducing the water pumping speed of the water pump until the second temperature meets a preset value;

the plateau patterns are:

when the heating assembly comprises a pressurizing assembly, increasing the air pressure in the heating tube assembly to enable the second temperature to accord with a preset value, and when the heating assembly does not comprise the pressurizing assembly, placing the heating tube assembly in a pressurizing environment to enable the second temperature to accord with the preset value;

and/or automatically lowering the second temperature preset value.

10. A water dispenser comprising a heating element as claimed in any one of claims 1 to 4, to which heating method as claimed in any one of claims 5 to 9 is applied.

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