CN216155516U - Water purifier - Google Patents

Abstract

The application discloses a water purifier, which comprises a filtering unit, a heating unit and a control unit, wherein the filtering unit is provided with a raw water inlet, a purified water outlet and a wastewater outlet, the heating unit comprises a hot tank and a heating element, the hot tank is provided with a heating cavity, a water inlet and a water outlet which are communicated with the heating cavity, the water inlet can be communicated with the purified water outlet, and the heating element is arranged in the hot tank and extends along the axial direction of the hot tank; the water purifier still includes water level detection device, water level detection device set up in the hot jar, in order to be used for detecting the water level in the heating chamber and with the water level data transfer that detects extremely the control unit, the minimum water level that water level detection device can detect with the highest position of heating member flushes or is higher than the highest position of heating member. The water purifier disclosed in the application has the advantages of high heating efficiency, good dry burning prevention performance, difficult occurrence of mixed water formed by hot water and cold water and the like.

Description

Water purifier

Technical Field

The application relates to the technical field of household appliances, in particular to a water purifier.

Background

Along with the economic development and the improvement of living standard, consumers pay more and more attention to healthy water and drinking water, and the use requirement on water is higher and higher. Water purifiers are increasingly accepted and favored by consumers as water treatment equipment capable of performing advanced filtration and purification treatment on water according to the use requirements of water.

A multifunctional novel water purifier appears in the current market, so that consumers can receive normal-temperature pure water and heated pure water simultaneously and replace old water purifiers with single water purification function gradually, and the old water purifiers mainly comprise a water purification unit and a heating unit. However, it is known from the feedback of many users who have used water purifiers equipped with a heating function that most of the water purifiers on the market still have many common drawbacks: for example, the heating efficiency of the heat generating plate is low, and particularly in a place with a large amount of water, the time required for heating the water to a boiling state each time is long; if the water purifier is not used for supplying water, the water in the hot tank is drained and water cannot be supplied in time, the heating element is burnt in a dry mode, the temperature rise of the water purifier and the service life of the heating element are reduced, even the safety problem is caused, and the water purifier is not used reliably.

SUMMERY OF THE UTILITY MODEL

The present application provides a water purifier to solve at least one of the above technical problems.

The technical scheme adopted by the application is as follows:

a water purifier comprises a filtering unit, a heating unit and a control unit, wherein the filtering unit is provided with a raw water inlet, a purified water outlet and a waste water outlet, the heating unit comprises a hot tank and a heating element, the hot tank is provided with a heating cavity, a water inlet and a water outlet which are communicated with the heating cavity, the water inlet can be communicated with the purified water outlet, and the heating element is arranged in the hot tank and extends along the axial direction of the hot tank; the water purifier still includes water level detection device, water level detection device set up in the hot jar, in order to be used for detecting the water level in the heating chamber and with the water level data transfer that detects extremely the control unit, the minimum water level that water level detection device can detect with the highest position of heating member flushes or is higher than the highest position of heating member.

The water purifier in the application also has the following additional technical characteristics:

the heating member with water level detection device set up together in the heating chamber, water level detection device include certainly heating chamber top downwardly extending's probe rod with set up in the water level detection mechanism of probe rod, water level detection mechanism is used for detecting the water level in the heating chamber.

The heating member set up in the heating chamber, water level detection device set up in the outside of hot jar, water level detection device include the water level linker with set up in the water level detection mechanism of water level linker, water level detection mechanism is used for detecting water level in the water level linker, the water inlet of water level linker with set up in the water level detection mouth intercommunication of hot jar.

The water level detection mechanism is used for detecting a first target water level and a second target water level, and the first target water level is lower than the second target water level; or the water level detection mechanism is used for detecting a first target water level, a second target water level and a third target water level, wherein the first target water level is lower than the second target water level, the second target water level is lower than the third target water level, and the third target water level is close to the second target water level, so as to perform auxiliary detection on the second target water level; when the water level detection mechanism detects the first target water level, the control unit controls the filtering unit to supply water into the hot tank; when the water level detection mechanism detects the second target water level, the control unit controls the filtering unit to stop supplying water into the hot tank.

When the heating element and the water level detection device are arranged in the heating cavity together, the water level detection mechanism comprises a floater and a water level identification component, the floater is sleeved on the probe rod and can float on the water surface in the heating cavity, and the water level identification component is used for identifying the position height of the floater in the heating cavity; when the heating element is arranged in the heating cavity and the water level detection device is arranged outside the hot tank, the water level detection mechanism comprises a floater and a water level identification component, the floater is positioned in the water level communicating vessel and can float on the water surface in the water level communicating vessel, and the water level identification component is used for identifying the position height of the floater in the water level communicating vessel; the water level identification assembly comprises a first detection element for identifying the first target water level and a second detection element for identifying the second target water level; or, the water level recognition assembly includes a first detection element for recognizing the first target water level, a second detection element for recognizing the second target water level, and a third detection element for recognizing the third target water level; the floater is provided with a magnetic part, and the first detection element, the second detection element and the third detection element can change the on-off state when the floater approaches or leaves.

The probe rod is fixedly provided with a first blocking piece, a second blocking piece, a third blocking piece and a fourth blocking piece from top to bottom, and a floater is respectively sleeved on the probe rod between the first blocking piece and the second blocking piece, between the third blocking piece and the fourth blocking piece and above the fourth blocking piece; an installation cavity is arranged in the probe rod, the first detection element is arranged in a partial cavity of the installation cavity, which is located between the first blocking piece and the second blocking piece, the second detection element is arranged in a partial cavity of the installation cavity, which is located between the third blocking piece and the fourth blocking piece, and the third detection element is arranged in a partial cavity of the installation cavity, which is located above the fourth blocking piece; be equipped with first float cavity and second float cavity that communicate each other and highly different in the water level linker, first float cavity and second float cavity are equipped with a float respectively, wherein first detecting element set up in the first float cavity outside, second detecting element and third detecting element set up in the second float cavity outside.

The heating member for set up in heating chamber bottom is followed the axial direction of hot jar is the electrothermal tube of heliciform extension, the central axis of heating member with the central axis of hot jar is located same straight line.

The water purifier still includes the temperature control unit, the temperature control unit including set up in the automatic re-setting temperature measuring device at hot tank top and set up together in the NTC temperature measuring device and the manual temperature measuring device that resets of hot tank bottom.

The utility model discloses a hot tank, including hot tank bottom downwardly extending, NTC temperature measuring device, internal thread, NTC temperature measuring device and it is equipped with the sealing member to press from both sides between the installation department.

The heating unit further comprises a spiral water channel which surrounds the side wall of the hot tank and is spirally arranged, a water channel inlet and a water channel outlet are respectively arranged at two ends of the spiral water channel, the water channel inlet can be communicated with the purified water outlet, and the water channel outlet can be communicated with the water inlet.

Due to the adoption of the technical scheme, the technical effects obtained by the application are as follows:

1. in the water purifier that this application provided, extend the axial direction of heating member orientation hot jar, compare in current in hot jar bottom set up the mode that the dish that generates heat heats promptly in the bottom of hot jar, through the increase heating member at the ascending extension height of hot jar axial direction, and then increase hot jar or heated area by heating water, can realize heating efficiency's improvement, shorten the time of water heating to boiling state greatly, joyful user experience.

In addition, be provided with water level detection device at hot jar, can detect the water level in the hot jar in real time to the control unit can make the filter unit in time make corresponding reaction according to the water level data that detect, if open the moisturizing, stop moisturizing etc.. In addition, the minimum water level that water level detection device can detect flushes or is higher than the highest position of heating member with the highest position of heating member, can make the water level be about to be less than before the height of heating member, the control unit can be according to the water level data of the minimum water level that current water level detection device detected, make hot jar make stop outside drainage or make the filter unit begin to carry out the reaction of moisturizing to the hot jar in, arouse the dry combustion method that causes the heating member when avoiding being less than the heating member because of the water level, the life of safety in utilization and heating member has been improved.

2. As an preferred embodiment of this application, through setting up heating member and water level detection device in the heating chamber together, make the heating member can with water direct contact, form contact heat conduction, heating efficiency is higher, in addition, water level detection device also sets up the heating chamber, help simplifying the structural design of water purifier, can avoid setting up the water hole that leads to water level detection device at the hot jar, gas pocket and corresponding seal structure, manufacturing process has been simplified, sealing cost has been reduced, can also save the installation space of water purifier, make the water purifier more miniaturized.

3. As an preferred embodiment of this application, set up the heating member in order to improve heating efficiency's basis in the heating chamber on, through setting up water level detection device in the outside of hot jar, not only can avoid it to occupy the water storage space in the heating chamber, still made things convenient for water level detection device's installation and walk the line, reduce water level detection device's waterproof nature requirement by a wide margin, and then reduced the required waterproof cost to water level detection device.

4. As a preferred embodiment of the present application, the water level detection mechanism is used for detecting a first target water level, a second target water level and a third target water level, the first target water level is lower than the second target water level, the second target water level is lower than the third target water level, and the third target water level is close to the second target water level, so as to perform auxiliary detection on the second target water level. Can be with first target water level, second target water level and third target water level are established respectively to the low water level, high water level and overflow water level are in order to realize diversified detection and the control to the water yield in the hot jar, the low water level can regard as the minimum water level that water level detection mechanism can detect, the moisturizing water level of filter unit beginning moisturizing in the hot jar simultaneously also, make it be not less than the highest position of heating member, and the high water level stops the water level of moisturizing in the hot jar for filter unit, the volume between low water level and the high water level is the water level volume that can take out promptly, it does not carry out the moisturizing to arrive the low water level at the water intaking in-process, can guarantee that the temperature when the water level is higher than the low water level is invariable, the hot water cold water can not appear and forms the phenomenon of mixing water. In addition, the auxiliary detection water level of the third target water level is added, so that the problems of water flow overflow and the like caused by high water level detection failure can be avoided.

5. As an optimal implementation mode of this application, water level detection mechanism includes float and water level identification subassembly, realizes water level detection through the cooperation of float and water level identification subassembly, and the detection mode is more simple and convenient, reliable, compare in water gauge observation mode can avoid trompil and set up artifical observation area in the water purifier outside on the hot jar, simplified manufacturing procedure, corresponding reduction to the sealed cost of trompil and manufacturing cost, compare in detection modes such as ultrasonic wave and laser, cost and energy consumption are lower.

Furthermore, the arrangement of the plurality of floats can reduce the movement stroke of each float compared with a detection mode of detecting all target water levels through the movement track of one float, so that the pressure loss of the floats is smaller and constant, and further, the measurement parameters are more accurate. And meanwhile, the failure of the whole water level detection device when one floater fails can be avoided.

6. As a preferred embodiment of this application, the heating member is for setting up in heating chamber bottom and being the electrothermal tube of heliciform extension along the axial direction of hot jar, and the central axis of heating member is located same straight line with the central axis of hot jar, compares in the central axis of electrothermal tube and is perpendicular with hot jar central axis, and this application adopts electrothermal tube and hot jar concentric, can reduce the electrothermal tube height, increases the usable hot water moisturizing volume of electrothermal tube top, and is also more even to the heating of water.

7. As a preferred embodiment of the present application, the water purifier further comprises a temperature control unit, wherein the temperature control unit comprises an automatic reset temperature measuring device arranged at the top of the hot tank, and an NTC temperature measuring device and a manual reset temperature measuring device which are arranged at the bottom of the hot tank together. Through setting up automatic re-setting temperature measuring device at hot tank deck portion, when NTC temperature measuring device trouble, because the vapor upward movement of the rising production of temperature, heat conduction is to hot tank deck portion, automatic re-setting temperature measuring device disconnection stop heating this moment, set up manual re-setting temperature measuring device bottom the hot tank simultaneously, make along with the decline of water level, even if water level detection device, NTC temperature measuring device, automatic re-setting temperature measuring device is all inefficacy the back, manual re-setting temperature measuring device also can start work, the quadruple dry combustion prevention design has been realized, and set up the technical scheme of hot tank deck portion to the heating member, heat-conduction is relative air fast, when the hot tank is anhydrous, electrothermal tube heating heat can conduct the bottom very fast, and then trigger manual re-setting temperature measuring device.

8. As an preferred embodiment of this application, the setting of spiral water course for can preheat the water in the spiral water course when hot jar heating, rivers in the spiral water course enter into hot jar when moisturizing once more in, owing to heat in the front, rivers temperature in the spiral water course is high, when the hot jar of secondary heating, can promote heating efficiency, and in addition, the setting of spiral water course can reduce the heat transfer of hot jar to the outside, reduce the temperature rise in the water purifier, spiral water course can also improve the maximum water storage capacity of hot jar in addition.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is an exploded view of a heating unit provided in a first embodiment of the present application;

fig. 2 is a schematic structural diagram of a heating unit provided in the first embodiment of the present application;

FIG. 3 is a longitudinal sectional view of a heating unit provided in a first embodiment of the present application;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 3 at A;

fig. 5 is a schematic structural diagram of a heating unit provided in a second embodiment of the present application;

FIG. 6 is a partial cross-sectional view of a heating unit provided in accordance with a second embodiment of the present application;

fig. 7 is a schematic structural view of a heating unit according to a third embodiment of the present application;

fig. 8 is a schematic structural diagram of a water level detecting device according to a third embodiment of the present application.

Reference numerals:

1, heating a tank, 11, a water inlet, 12, a water outlet, 13, a mounting part, 14, a sealing element, 15 spiral water channels, 151 water channel inlets and 152 water channel outlets;

2 a heating element;

3, a water level detection device, a probe rod 31, a first blocking piece 311, a second blocking piece 312, a third blocking piece 313, a fourth blocking piece 314, a 32 water level detection mechanism, a floater 321, a 322 water level identification component, a 3221 first detection element, a 3222 second detection element, a 3223 third detection element and a 33 water level communicating vessel;

4, automatically resetting the temperature measuring device;

5NTC temperature measuring device;

6, manually resetting the temperature measuring device;

7, a water pumping pipe;

8, a water pump;

9 mounting pad.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like refer to orientations or positional relationships illustrated in the drawings, which are used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting of the present application.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

A water purifier as shown in fig. 1 to 8, comprising a filtering unit, a heating unit and a control unit (the present application focuses on the improved design of the heating unit, and therefore, only a schematic structural diagram of the heating unit is shown in the drawings), wherein the filtering unit has a raw water inlet, a purified water outlet and a waste water outlet, the heating unit comprises a hot tank 1 and a heating element 2, the hot tank 1 has a heating chamber, a water inlet 11 and a water outlet 12 communicating with the heating chamber, the water inlet 11 can communicate with the purified water outlet, and the heating element 2 is disposed in the hot tank 1 and extends along the axial direction of the hot tank 1; the water purifier further comprises a water level detection device 3, wherein the water level detection device 3 is arranged in the hot tank 1 and used for detecting the water level in the heating cavity and transmitting the detected water level data to the control unit, and the lowest water level which can be detected by the water level detection device 3 is flush with the highest position of the heating member 2 or is higher than the highest position of the heating member 2.

In the water purifier that this application provided, as shown in fig. 2 and 7, with heating member 2 orientation the axial direction of hot jar 1 extends, set up the mode that the heating plate heats in hot jar 1 bottom promptly in the current, through increase heating member 2 at the ascending extension height of hot jar 1 axial direction, and then increase heating member 2 and hot jar 1 and heated area by heating water, can realize the improvement of heating efficiency, heat the time of water to the boiling state and shorten greatly, joyful user experience.

The water level detection device 3 is arranged on the hot tank 1, so that the water level in the hot tank 1 can be detected in real time, and the control unit can make the filtering unit timely perform corresponding reactions according to the detected water level data, such as starting water supplement, stopping water supplement and the like. In addition, the lowest water level that water level detection device 3 can detect flushes or is higher than with the highest position of heating member 2 can make the water level be about to be less than before the height of heating member 2, and the control unit can make hot jar 1 make stop outside drainage or make the filter unit begin to carry out the reaction of moisturizing to hot jar 1 according to the water level data of the lowest water level that current water level detection device 3 detected, avoids causing the dry combustion method of heating member 2 when being less than heating member 2 because of the water level, has improved safety in utilization and heating member 2's life.

Specifically, a water pump 8 for pumping water from the heating cavity outwards through a water pumping pipe 7 is further arranged at the lower part of the hot tank 1, the water pump 8 is installed at the bottom of the hot tank 1 through a mounting pad 9, and the mounting pad 9 can play a role in damping the water pump 8.

It should be noted that the present application is not limited to the position of the heating element 2 on the heating tank 1, and the heating element 2 may be disposed in the heating chamber or outside the heating chamber, wherein for the manner of disposing outside the heating chamber, the heating element 2 may be disposed outside the entire heating tank 1, or an interlayer may be disposed on the side wall of the heating tank, and the heating element 2 may be disposed in the interlayer.

It should be further noted that, the present application is not limited to the location of the water level detection device 3 in the hot tank 1, and the water level detection device may be disposed in the heating chamber to directly detect the water level in the heated water, or may be disposed outside the hot tank 1 to detect the water level in the heating chamber outside the hot tank 1.

In the following, the heating element 2 and the water level detection device 3 are further optimized in the installation position of the hot tank 1 by two preferred embodiments:

the first implementation mode comprises the following steps: in this embodiment, as shown in fig. 2, the heating element 2 and the water level detection device 3 are disposed together in the heating cavity, the water level detection device 3 includes a probe 31 extending downward from the top of the heating cavity and a water level detection mechanism 32 disposed on the probe 31, and the water level detection mechanism 32 is configured to detect the water level in the heating cavity.

Through setting up heating member 2 and water level detection device 3 in the heating chamber together for heating member 2 can with water direct contact, form contact heat conduction, heating efficiency is higher, in addition, water level detection device 3 also sets up the heating chamber, help simplifying the structural design of water purifier, can avoid setting up the water hole that accesss to water level detection device 3 at hot jar 1, gas pocket and corresponding seal structure, the manufacturing procedure has been simplified, sealing cost is reduced, can also save the installation space of water purifier, make the water purifier more miniaturized.

The second embodiment: in the present embodiment, as shown in fig. 7, the heating member 2 is disposed in the heating chamber, the water level detecting device 3 is disposed outside the hot tank 1, the water level detecting device 3 includes a water level communicating vessel 33 and a water level detecting mechanism 32 disposed in the water level communicating vessel 33, the water level detecting mechanism 32 is configured to detect the water level in the water level communicating vessel 33, and the water inlet 11 of the water level communicating vessel 33 is communicated with the water level detecting port disposed in the hot tank 1.

On setting up heating member 2 in order to improve heating efficiency's basis in the heating chamber, through setting up water level detection device 3 in the outside of hot jar 1, not only can avoid it to occupy the water storage space of heating intracavity, still made things convenient for water level detection device 3's installation and walk the line, reduce water level detection device 3's waterproof nature requirement by a wide margin, and then reduced the required waterproof cost to water level detection mechanism 32. The water inlet 11 of the water level communicating vessel 33 is communicated with the water level detection port arranged in the hot tank 1, so that the liquid level in the water level communicating vessel 33 is equal to the liquid level in the hot tank 1, and the accuracy of the detection result is ensured.

In the present application, the target water level that can be detected by the water level detection mechanism 32 according to any one of the first and second embodiments is not particularly limited, and any one of the following examples may be used:

example 1: the water level detection mechanism 32 is configured to detect a first target water level L and a second target water level H, and the first target water level L is lower than the second target water level H. The first target water level L may be set to a low water level, and the second target water level H may be set to a high water level.

When the water level detection mechanism 32 detects the first target water level L, the control unit controls the filter unit to supply water into the hot tank 1; when the water level detection mechanism 32 detects the second target water level H, the control unit controls the filter unit to stop supplying water into the hot tank 1.

Example 2: as a preferred embodiment, the water level detection mechanism 32 is configured to detect a first target water level L, a second target water level H and a third target water level S, wherein the first target water level L is lower than the second target water level H, the second target water level H is lower than the third target water level S, and the third target water level S is close to the second target water level H, so as to assist in detecting the second target water level H.

As in the foregoing embodiment 1, in this embodiment 2, it is still possible that the control unit controls the filter unit to supply water into the hot tank 1 when the water level detection mechanism 32 detects the first target water level L; when the water level detection mechanism 32 detects the second target water level H, the control unit controls the filter unit to stop supplying water into the hot tank 1.

In specific implementation, as shown in fig. 2 and 7, the first target water level L may be set to a low water level, the second target water level H may be set to a high water level, and the third target water level S may be set to an overflow water level, so as to implement multi-directional detection and monitoring of the water level in the hot tank 1. The low water level can regard as the minimum water level that water level detection mechanism 32 can detect, the moisturizing water level of filtration unit beginning moisturizing to hot pot 1 simultaneously also, make it not less than the highest position of heating member 2, and the high water level stops the water level to moisturizing in the hot pot 1 for filtration unit, the volume between low water level and the high water level is the water level volume that can take out promptly, water intaking in-process does not reach the low water level and does not carry out the moisturizing, can guarantee that the temperature when the water level is higher than the low water level is invariable, the hot water cold water can not appear and forms the phenomenon of mixing water. In addition, the auxiliary detection water level of the third target water level S is added, when the high water level detection fails and the water flow reaches the third target water level S, the water purifier gives an alarm to stop water replenishing and heating, and further the problems of water flow overflow, safety and the like are avoided.

It should be further noted that the water level detection mechanism 32 according to the present application in both the first and second embodiments may include a float 321 and a water level identification component 322, and the water level identification component 322 is configured to identify a position height at which the float 321 floats on the water surface.

The water level detection is realized through the cooperation of the floater 321 and the water level identification component 322, the detection mode is simpler, more convenient and more reliable, the hole opening on the hot tank can be avoided and the manual observation area is arranged outside the water purifier in comparison with the water gauge observation mode, the manufacturing process is simplified, the sealing cost and the manufacturing cost of the hole opening are correspondingly reduced, and the cost and the energy consumption are lower in comparison with the detection modes such as ultrasonic waves and laser.

Specifically, when the water level detecting mechanism 32 is used to detect a first target water level L and a second target water level H, the water level identifying assembly 322 includes a first detecting element 3221 for identifying the first target water level L and a second detecting element 3222 for identifying the second target water level H. When the water level detecting mechanism 32 is used to detect a first target water level L, a second target water level H and a third target water level S, the water level identifying assembly 322 includes a first detecting element 3221 for identifying the first target water level L, a second detecting element 3222 for identifying the second target water level H and a third detecting element 3223 for identifying the third target water level S, i.e., the first detecting element 3221 is used to identify the position height of the float 321 at a low water level, the second detecting element 3222 is used to identify the position height of the float 321 at a high water level, and the third detecting element 3223 is used to identify the position height of the float 321 at an auxiliary detection water level.

Further, the float 321 is provided with a magnetic member, and the first detecting element 3221, the second detecting element 3222 and the third detecting element 3223 can change an on-off state when the float 321 approaches or leaves, so that water level detection is realized through magnetic field induction. For example, when the float 321 is at a low water level, the float 321 is magnetically induced with the first detecting element 3221, the first detecting element 3221 sends a signal to the control unit to control the filter unit to feed water into the hot tank 1, and when the float 321 rises to a high water level, the float 321 is magnetically induced with the second detecting element 3222, and the second detecting element 3222 sends a signal to the control unit to control the filter unit to stop feeding water into the hot tank 1.

It should be noted that, the present invention does not specifically limit all the detecting elements including the first detecting element 3221, the second detecting element 3222 and the third detecting element 3223, and a reed switch, a hall element, and the like may be used.

In the structure that the water level detection mechanism 32 can include the float 321 and the water level identification component 322, for the solution in the first embodiment that the heating element 2 and the water level detection device 3 are disposed in the heating cavity together, it is further optimized that, as shown in fig. 2, the float 321 is sleeved on the probe 31 and can float on the water surface in the heating cavity, and the water level identification component (not shown in the figure, which is located in the probe 31) is used for identifying the position height of the float 321 in the heating cavity.

Further, the probe rod 31 is fixedly provided with a first blocking piece 311, a second blocking piece 312, a third blocking piece 313 and a fourth blocking piece 314 from bottom to top, and a float 321 is respectively sleeved on the probe rod 31 between the first blocking piece 311 and the second blocking piece 312, between the third blocking piece 313 and the fourth blocking piece 314 and above the fourth blocking piece 314; a mounting cavity is arranged in the probe rod 31, the first detection element is arranged in a partial cavity of the mounting cavity between the first blocking piece 311 and the second blocking piece 312, the second detection element is arranged in a partial cavity of the mounting cavity between the third blocking piece 313 and the fourth blocking piece 314, and the third detection element is arranged in a partial cavity of the mounting cavity above the fourth blocking piece 314.

In the foregoing embodiment, the solution in which the heating member 2 is disposed in the heating chamber and the water level detecting device 3 is disposed outside the hot tank 1 is further optimized in that, as shown in fig. 7 and 8, the float (not shown) is located in the water level communicating vessel 33 and can float on the water surface in the water level communicating vessel 33, and the water level identifying assembly 322 is used for identifying the position height of the float 321 in the water level communicating vessel 33.

Further, a first float cavity and a second float cavity which are communicated with each other and have different heights are arranged in the water level communicating vessel 33, a float is respectively arranged in the first float cavity and the second float cavity, wherein a first detection element 3221 is arranged outside the first float cavity, and a second detection element 3222 and a third detection element 3223 are arranged outside the second float cavity.

It can be seen that, in the above technical solutions in which the heating element 2 and the water level detection device 3 are disposed in the heating cavity together and in which the heating element 2 is disposed in the heating cavity and the water level detection device 3 is disposed outside the hot tank 1, a float can be disposed at each target water level, and therefore, a plurality of floats are disposed on one water level detection mechanism 32, and compared with a detection method in which only one float is disposed and all target water levels are detected through the movement trajectory of the float, each float can float only near the corresponding target water level, thereby reducing the movement stroke of each float, making the pressure loss of each float smaller and constant, and further making the measurement parameters more accurate. And simultaneously, the failure of the whole water level detection device 3 when one floater fails can be avoided.

As a preferred embodiment of the present application, as shown in fig. 2 and 7, all the previous embodiments and examples of the present application may further make the heating element 2 be an electric heating tube disposed at the bottom of the heating cavity and extending spirally along the axial direction of the hot tank 1, and the central axis of the heating element 2 is located on the same line with the central axis of the hot tank 1.

Through with heating member 2 for set up in heating chamber bottom and be the electrothermal tube of heliciform extension and with hot jar 1 coaxial line along the axial direction of hot jar 1, compare in the simple mode that improves the area of contact with water through increasing the height that increases heating member 2, the heliciform electrothermal tube is also more even to the heating of water, and simultaneously, can be on keeping the basis of lower high level, also can have great surface area, and then the area of contact with water is increased, and the reduction of electrothermal tube height makes the usable moisturizing volume increase between low water level and the high water level, the pure hot water that can be utilized after the single heating is accomplished is more promptly.

Further, as shown in fig. 1 and 2, the water purifier further comprises a temperature control unit, wherein the temperature control unit comprises an automatic reset temperature measuring device 4 arranged at the top of the hot tank 1, and an NTC temperature measuring device 5 and a manual reset temperature measuring device 6 which are arranged at the bottom of the hot tank 1 together.

Through setting up automatic re-setting temperature measuring device 4 at 1 top of hot jar, when NTC temperature measuring device 5 trouble, because the vapor upward movement of the rising production of temperature, heat conduction is to hot jar 1 top, automatic re-setting temperature measuring device 4 disconnection stop heating this moment, set up manual re-setting temperature measuring device 6 in 1 bottom of hot jar simultaneously, make along with the decline of water level, even if water level detection device 3, NTC temperature measuring device 5, automatic re-setting temperature measuring device 4 all became invalid, manual re-setting temperature measuring device 6 also can start work, quadruple dry combustion prevention design has been realized, and set up the technical scheme of hot jar 1 bottom to heating member 2, heat-conduction is relatively fast, when hot jar 1 does not have water, electrothermal tube heating heat can very conduct the bottom soon, and then trigger manual re-setting temperature measuring device 6.

Furthermore, as shown in fig. 3 and 4, the bottom of the hot tank 1 extends downwards to form an installation part 13, the installation part 13 is provided with an internal thread, the NTC temperature measuring device 5 is provided with an external thread, the NTC temperature measuring device 5 is detachably installed in the hot tank 1 through the cooperation of the internal thread and the external thread, and a sealing element 14 is clamped between the NTC temperature measuring device 5 and the installation part 13, so that water leakage of the heating cavity can be avoided.

NTC temperature measuring device 5 passes through threaded connection and realizes being connected with dismantling of hot jar 1 for NTC temperature measuring device 5 can in time change after damaging, in order to guarantee to prevent the function of dry combustion method normal, and need not wholly scrap hot jar 1, can change NTC temperature measuring device 5 alone, has practiced thrift cost of maintenance.

As a preferred embodiment of the present application, as shown in fig. 5, all the aforementioned embodiments and examples of the present application may further include that the heating unit further includes a spiral water channel 15 surrounding the side wall of the hot tank 1 and spirally disposed, two ends of the spiral water channel 15 are respectively provided with a water channel inlet 151 and a water channel outlet 152, the water channel inlet 151 can be communicated with the purified water outlet, and the water channel outlet 152 can be communicated with the water inlet 11.

Spiral water channel 15's setting for can preheat the water in spiral water channel 15 when hot jar 1 heats, rivers in spiral water channel 15 enter into hot jar 1 when moisturizing again, because heat has been heated in the front, rivers temperature in spiral water channel 15 is high, when the hot jar 1 of secondary heating, can promote heating efficiency, and, spiral water channel 15's setting can reduce the heat transfer of hot jar 1 to the outside, reduce the temperature rise in the water purifier, spiral water channel 15 can also improve hot jar 1's the biggest water storage capacity in addition. Further, the cross-section of the spiral waterway 15 includes, but is not limited to, a rectangle as shown in fig. 6, which may also be circular, arc-shaped, and the like.

Where not mentioned in this application, can be accomplished using or referencing existing technology.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (9)

1. A water purifier comprises a filtering unit, a heating unit and a control unit, wherein the filtering unit is provided with a raw water inlet, a purified water outlet and a waste water outlet,

the heating unit comprises a hot tank and a heating element, the hot tank is provided with a heating cavity, a water inlet and a water outlet, the water inlet is communicated with the heating cavity, the water inlet can be communicated with the purified water outlet, and the heating element is arranged in the hot tank and extends along the axial direction of the hot tank;

the water purifier still includes water level detection device, water level detection device set up in the hot jar, in order to be used for detecting the water level in the heating chamber and with the water level data transfer that detects extremely the control unit, the minimum water level that water level detection device can detect with the highest position of heating member flushes or is higher than the highest position of heating member.

2. The water purifier according to claim 1,

the heating element and the water level detection device are arranged in the heating cavity together, the water level detection device comprises a probe rod extending downwards from the top of the heating cavity and a water level detection mechanism arranged on the probe rod, and the water level detection mechanism is used for detecting the water level in the heating cavity; or

The heating member set up in the heating chamber, water level detection device set up in the outside of hot jar, water level detection device include the water level linker with set up in the water level detection mechanism of water level linker, water level detection mechanism is used for detecting water level in the water level linker, the water inlet of water level linker with set up in the water level detection mouth intercommunication of hot jar.

3. The water purifier according to claim 2,

the water level detection mechanism is used for detecting a first target water level and a second target water level, and the first target water level is lower than the second target water level; or the water level detection mechanism is used for detecting a first target water level, a second target water level and a third target water level, wherein the first target water level is lower than the second target water level, the second target water level is lower than the third target water level, and the third target water level is close to the second target water level, so as to perform auxiliary detection on the second target water level;

when the water level detection mechanism detects the first target water level, the control unit controls the filtering unit to supply water into the hot tank; when the water level detection mechanism detects the second target water level, the control unit controls the filtering unit to stop supplying water into the hot tank.

4. The water purifier according to claim 3,

in a structure that the heating element and the water level detection device are arranged in the heating cavity together, the water level detection mechanism comprises a floater and a water level identification component, the floater is sleeved on the probe rod and can float on the water surface in the heating cavity, and the water level identification component is used for identifying the position height of the floater in the heating cavity;

in a structure in which the heating member is disposed in the heating chamber and the water level detection device is disposed outside the hot tank, the water level detection mechanism includes a float that is located in the water level communicating vessel and is capable of floating on the water surface in the water level communicating vessel, and a water level recognition component for recognizing a position height of the float in the water level communicating vessel;

the water level identification assembly comprises a first detection element for identifying the first target water level and a second detection element for identifying the second target water level; or, the water level recognition assembly includes a first detection element for recognizing the first target water level, a second detection element for recognizing the second target water level, and a third detection element for recognizing the third target water level; the floater is provided with a magnetic part, and the first detection element, the second detection element and the third detection element can change the on-off state when the floater approaches or leaves.

5. The water purifier according to claim 4,

the probe rod is fixedly provided with a first blocking piece, a second blocking piece, a third blocking piece and a fourth blocking piece from bottom to top, and a floater is respectively sleeved on the probe rod between the first blocking piece and the second blocking piece, between the third blocking piece and the fourth blocking piece and above the fourth blocking piece; an installation cavity is arranged in the probe rod, the first detection element is arranged in a partial cavity of the installation cavity, which is located between the first blocking piece and the second blocking piece, the second detection element is arranged in a partial cavity of the installation cavity, which is located between the third blocking piece and the fourth blocking piece, and the third detection element is arranged in a partial cavity of the installation cavity, which is located above the fourth blocking piece;

be equipped with first float cavity and second float cavity that communicate each other and highly different in the water level linker, first float cavity and second float cavity are equipped with a float respectively, wherein first detecting element set up in the first float cavity outside, second detecting element and third detecting element set up in the second float cavity outside.

6. The water purifier according to claim 2,

the heating member for set up in heating chamber bottom is followed the axial direction of hot jar is the electrothermal tube of heliciform extension, the central axis of heating member with the central axis of hot jar is located same straight line.

7. The water purifier according to claim 6,

the water purifier still includes the temperature control unit, the temperature control unit including set up in the automatic re-setting temperature measuring device at hot tank top and set up together in the NTC temperature measuring device and the manual temperature measuring device that resets of hot tank bottom.

8. The water purifier according to claim 7,

the utility model discloses a hot tank, including hot tank bottom downwardly extending, NTC temperature measuring device, internal thread, NTC temperature measuring device and it is equipped with the sealing member to press from both sides between the installation department.

9. The water purifier according to claim 1 or 2,

the heating unit further comprises a spiral water channel which surrounds the side wall of the hot tank and is spirally arranged, a water channel inlet and a water channel outlet are respectively arranged at two ends of the spiral water channel, the water channel inlet can be communicated with the purified water outlet, and the water channel outlet can be communicated with the water inlet.

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