Dry-burning-resistant heat gathering type humidifier

Abstract

The utility model discloses an anti-dry-burning heat gathering type humidifier which comprises a shell, the shell comprises an outer shell and an inner shell, the outer shell is provided with a bottom plate, supporting columns are arranged on the bottom plate, and supporting feet are fixedly connected with the supporting columns so that the weight of the shell and the weight borne by the shell can act on the bottom plate; the bottom plate is provided with a plurality of weight sensors; the outer edge of the heating plate is embedded into the inner ring side of the annular bottom wall, a groove is formed in the middle of the heating plate, and an electric heating unit is arranged in the groove; the water tank is detachably arranged in the inner shell; the heat gathering cover is arranged in the middle of the water tank; and the cover body covers the opening of the shell, a mist outlet is formed in the middle of the cover body, and the mist outlet is formed above the heat gathering cover. According to the utility model, the installation limitation of the sensor in an independent and detachable box body structure is avoided, the water volume is indirectly monitored by using the weight sensor, the risk of dry burning is effectively reduced, and dry burning early warning is realized.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a heat-concentrating heater that prevents dry burning. Background Technology

[0002] A thermal humidifier is a device that increases air humidity by heating water to boiling using an electric heating element to produce steam. The thermal design involves dividing the water container into a concentrated heating zone using a thermal chamber structure. The water in this zone is heated by a heating unit, causing it to boil more quickly and increasing humidification efficiency. However, because the container and shell of a thermal humidifier are fixed or integrated, they cannot be removed for cleaning, making disassembly and cleaning extremely inconvenient. Furthermore, incomplete cleaning of the container can lead to the accumulation of scale and dirt over long-term use, reducing heating efficiency and increasing the risk of dry burning. If a traditional removable water tank design is used in a thermal humidifier, the thermal chamber structure may not provide an effective connection, resulting in the failure of the heating zone separation. Meanwhile, in traditional detachable water tanks, due to the use of an independent and detachable tank structure, the installation compatibility and detection reliability of traditional water level detection devices are difficult to guarantee, resulting in a detection blind spot in actual use: when the user does not replenish water in time or the water tank is not installed properly, the humidifier cannot detect abnormal liquid level in real time, and the risk of the heating element continuously burning dry increases significantly, which may cause the heating module to burn out, short circuit and other device damage, and there are also safety hazards such as fire caused by high temperature and scalding caused by steam leakage. Utility Model Content

[0003] The purpose of this utility model is to provide a heat-concentrating heater that prevents dry burning, so as to solve one or more technical problems existing in the prior art, or at least provide a beneficial option or create conditions.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] This utility model provides a heat-concentrating humidifier with anti-dry-burning properties, comprising:

[0006] The housing includes an outer shell and an inner shell. The outer shell has an opening at its top. The inner shell is a cylindrical shape with an open top and a through-hole at its center. The upper part of the inner shell is connected to the bottom of the opening. The lower part of the inner shell has an annular bottom wall. The bottom side of the annular bottom wall has a support leg. The outer shell has a base plate with a support column on the base plate. The support leg is fixedly connected to the support column so that the weight of the housing and the weight it bears are applied to the base plate. The base plate has several weight sensors. The connection between the upper part of the inner shell and the bottom of the opening means that the top surface of the side wall of the inner shell is connected to the bottom surface of the opening, so that the inner surface of the inner shell is connected to the inner surface of the opening, and together with the annular bottom wall, they form a spatial structure for accommodating a water tank.

[0007] The heating plate has its outer edge embedded in the inner ring side of the annular bottom wall, and a groove is provided in the middle of the heating plate, where an electric heating unit is installed;

[0008] A water tank is detachably installed in the inner shell. The bottom of the water tank is provided with a heating groove corresponding to the groove position. When the water tank is placed in the inner shell, the bottom of the water tank fits against the annular bottom wall and the groove.

[0009] A heat-concentrating hood is located in the middle of the water tank. There is a water flow channel between the bottom end of the heat-concentrating hood and the heating tank. Water flow between the bottom end of the heat-concentrating hood and the heating tank can be achieved through assembly gaps or gap fits to create a water flow channel. After the water in the heat-concentrating hood is heated to boiling and vaporized, water outside the heat-concentrating hood is replenished into the heat-concentrating hood through the water flow channel to avoid dry burning.

[0010] A cover is provided over the opening of the outer shell, and a mist outlet is provided in the middle of the cover, which is located above the heat-concentrating shroud.

[0011] In this technical solution, the water tank is supported by an inner shell and an outer shell. The weight of the shell and the shell is applied to the base plate through the support legs and pillars. The water level in the tank can be accurately determined by measuring the vertical pressure change through the weight sensor on the base plate, thus avoiding the phenomenon of dry burning due to low water level.

[0012] During operation, a water tank is placed inside the inner shell, and a heat-collecting hood is inserted into the heating groove of the water tank. The heat-collecting hood has a ring-shaped structure, and its bottom diameter matches the size of the heating groove. By inserting the heat-collecting hood into the heating groove, the bottom surface of the heating groove and the inner surface of the heat-collecting hood form a heating zone. Since the electric heating unit is located in the groove, the heat generated by the electric heating unit is preferentially transferred to the water in the heating groove to heat the water in the heating zone. This can quickly heat a portion of the water inside the heat-collecting hood, and the resulting water vapor rises in the heat-collecting hood and diffuses outward from the mist outlet. As the water in the heat-collecting hood decreases due to vaporization, water from outside the heat-collecting hood is replenished into the heat-collecting hood through the water flow channel. The water level in the water tank is monitored in real time by a weight sensor. When the weight information falls below a set threshold, heating is stopped or a water replenishment reminder is issued.

[0013] Compared to existing technologies, traditional detachable water tanks cannot effectively integrate liquid level sensors, requiring fixed structures or complex power supply schemes. This technical solution circumvents the limitations of sensor installation in independently detachable tank structures, indirectly monitoring water volume using a weight sensor. The rigid connection structure between the legs and the support column ensures accurate pressure measurement, effectively reducing the risk of dry burning and enabling dry burning early warning.

[0014] As an extension of the above solution: the sensing end of the weight sensor is located on the bottom surface of the base plate for contact with the bearing surface. At least three weight sensors are provided, arranged in a circumferential array around the center of the base plate. When the water tank is placed inside the inner shell, its weight is transmitted to the base plate through the rigid connection of the legs and pillars. The three or more circumferentially arrayed weight sensors form a planar support system, ensuring accurate calculation of the total weight and precise acquisition of the water level within the tank, effectively avoiding the risk of dry burning due to misjudgment of the liquid level.

[0015] As an extension of the above solution: the inner side of the annular bottom wall is provided with an annular assembly groove, the groove opening facing upwards. The outer edge of the heating plate is bent downwards to form an annular retaining edge, which is embedded in the annular assembly groove for fixation. The top surface of the heating plate is flush with the upper side of the annular bottom wall. The top surface of the heating plate and the upper side of the annular bottom wall form a support surface for fitting against the bottom of the water tank, effectively supporting the water tank. The annular retaining edge of the heating plate and the annular assembly groove are embedded vertically. After the water tank is placed into the inner shell, the bottom of the water tank further effectively limits its embedded assembly, ensuring the installation stability of the heating plate.

[0016] As an extension of the above solution: the side walls of the heating tank expand outwards from bottom to top, and the bottom end of the heat-collecting cover abuts against the side walls, forming a water flow channel through a gap. The outward expansion of the side walls from bottom to top ensures that when the bottom end of the heat-collecting cover abuts against the side walls, it does not directly contact the side walls. The gap between the heat-collecting cover and the side walls can be used to create a water flow channel, allowing water to be replenished into the heat-collecting cover and preventing dry burning.

[0017] As an extension of the above solution: the sidewall of the heating tank is provided with a first threaded section, and the bottom outer side of the heat-collecting shroud is provided with a second threaded section. An axial groove is provided in either the first or second threaded section, which forms a channel for water flow between the heat-collecting shroud and the water tank. This water flow channel, constructed through the axial groove, allows water to vaporize in the heat-collecting shroud, with water from the outside of the shroud replenishing the inside, thus preventing dry burning.

[0018] As an extension of the above solution, a heat insulation cavity is provided between the outer wall of the water tank and the inner wall of the inner shell. The heat insulation cavity can reduce the conduction of heat inside the water tank through the side wall, and maintain the temperature by blocking heat transfer.

[0019] As an extension of the above solution: the outer side wall of the inner shell is provided with several lifting lugs, and the bottom of the opening of the outer shell is provided with several lifting feet corresponding to the lifting lugs. The lifting lugs are fixedly connected to the lifting feet by bolts. The connection between the lifting lugs and the lifting feet further strengthens the connection between the inner shell and the outer shell, and improves the structural stability of the shell.

[0020] As an extension of the above solution: there is a space between the outer side of the inner shell and the inner side of the outer shell, and an electrical assembly space between the heating plate and the base plate. The air in the space forms a thermal barrier, preventing heat from the inner shell and water tank from being transferred to the outer shell, thus avoiding the outer shell becoming too hot to touch, while also reducing heat loss and improving heat preservation efficiency. The electrical assembly space is used to install the heating plate's drive circuit (such as relays, thermostats, fuses), wire terminal blocks, temperature sensors (such as NTC probes), etc., preventing components from being exposed and causing safety hazards.

[0021] As an extension of the above solution: the cover body includes an upper cover, a cover plate, and a connecting rubber ring. The cross-sectional shape of the connecting rubber ring is an "E" shape with a first ring protrusion, a second ring protrusion, and a third ring protrusion extending inward. The top edge of the water tank is horizontally turned outward, and the turned-out edge is embedded between the first ring protrusion and the second ring protrusion. The outer edge of the cover plate is embedded between the second ring protrusion and the third ring protrusion. The inner side of the upper cover is provided with a snap-fit ​​groove, and the third ring protrusion is placed in the snap-fit ​​groove. The inner side of the upper cover and the outer side of the opening of the outer shell are provided with mutually cooperating snap-fit ​​members. When the upper cover is snapped into the opening by the snap-fit ​​members, the third ring protrusion, the outer edge of the cover plate, the second ring protrusion, the turned-out edge of the water tank, and the first ring protrusion are pressed in sequence on the top surface of the opening in the vertical direction by the snap-fit ​​groove.

[0022] In this extended design, the cover plate, water tank, and opening are connected by a connecting rubber ring to prevent liquid from seeping out along the flange of the water tank, while also preventing steam from unexpectedly escaping from the edge of the cover plate. The flange of the water tank overlaps the opening via a first ring protrusion, evenly distributing the weight of the water tank to the opening of the outer shell, thus avoiding localized stress concentration that could lead to structural deformation.

[0023] As an extension of the above solution: a mist guide cover is provided in the middle of the cover plate, the mist guide cover has an upper mist guide cover and a lower mist guide cover, the lower mist guide cover is detachably installed in the middle of the cover plate, the upper mist guide cover is placed on the lower mist guide cover and pressed by the bottom side of the mist outlet, the upper mist guide cover and the lower mist guide cover are respectively provided with upper mist guide openings and lower mist guide openings that are staggered with each other, the upper mist guide openings are aligned with the mist outlet. The staggered upper and lower mist guide openings mean that the upper and lower mist guide openings do not overlap in the vertical direction, preventing foreign objects from falling directly into the heat collection hood, and can intercept solid particulate matter. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0025] Figure 1 This is a schematic diagram of the structure of the heat-concentrating humidifier in the embodiment;

[0026] Figure 2This is a cross-sectional structural schematic diagram of the heat-concentrating humidifier in the embodiment;

[0027] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle;

[0028] Figure 4 yes Figure 2 A magnified view of a portion of point B in the middle.

[0029] In the attached diagram: 100: shell, 110: outer shell, 111: opening, 112: lifting foot, 120: inner shell, 121: annular bottom wall, 122: support foot, 123: annular assembly groove, 124: lifting lug, 130: heat insulation cavity, 140: air gap, 200: base plate, 210: support column, 220: weight sensor, 300: heating plate, 310: groove, 311: electric heating unit, 320: annular snap-fit ​​edge, 400: water tank, 410: heating groove, 411: side groove wall, 500: heat collection cover, 600: cover body, 610: mist outlet, 620: top cover, 621: snap-fit ​​groove, 630: cover plate, 631: mist guide cover, 640: connecting rubber ring. Detailed Implementation

[0030] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] like Figures 1 to 4As shown, an embodiment of this utility model provides a heat-concentrating humidifier with anti-dry-burning properties, comprising:

[0035] The housing 100 includes an outer shell 110 and an inner shell 120. The outer shell 110 has an opening 111 at its top. The inner shell 120 is a cylindrical shape with an open upper part and a through-hole at its center. The upper part of the inner shell 120 is connected to the bottom of the opening 111. The lower part of the inner shell 120 has an annular bottom wall 121, and the bottom side of the annular bottom wall 121 has a support leg 122. The outer shell 110 has a base plate 200, and a support column 210 is provided on the base plate 200. The support leg 122 is connected to the outer shell 110. The support column 210 is fixedly connected so that the weight of the housing 100 and the weight borne by the housing 100 are applied to the base plate 200. The base plate 200 is provided with a plurality of weight sensors 220. The connection between the upper part of the inner shell 120 and the bottom of the opening 111 means that the top surface of the side wall of the inner shell 120 is connected to the bottom surface of the opening 111, so that the inner side surface of the inner shell 120 is connected to the inner side surface of the opening 111, and together with the annular bottom wall 121, they form a spatial structure for accommodating the water tank 400.

[0036] The heating plate 300 has its outer edge embedded in the inner ring side of the annular bottom wall 121. A groove 310 is provided in the middle of the heating plate 300, and an electric heating unit 311 is provided in the groove 310. The electric heating unit includes one of the following: an electric heating tube structure, an infrared heater, an electric heating wire structure, and a PTC heater. The electric heating tube structure, infrared heater, electric heating wire structure, and PTC heater use existing technologies to achieve their heating functions, which will not be described in detail in this embodiment.

[0037] A water tank 400 is detachably disposed within the inner shell 120. A heating groove 410 is provided at the bottom of the water tank 400 corresponding to the groove 310. When the water tank 400 is placed inside the inner shell 120, the bottom of the water tank 400 adheres to the annular bottom wall 121 and the groove 310. This means that the outline of the bottom wall of the water tank 400 is similar to and in contact with the outlines of the annular bottom wall 121 and the groove 310, allowing the heating heat from the electric heating unit 311 to be directly conducted to the heating groove 410 through contact, thereby heating the water in the heating groove 410.

[0038] A heat-concentrating cover 500 is disposed in the middle of the water tank 400. A water flow channel exists between the bottom end of the heat-concentrating cover 500 and the heating tank 410. The heat-concentrating cover has an annular structure with a bottom diameter matching the size of the heating tank. By inserting the heat-concentrating cover into the heating tank, the bottom surface of the heating tank and the inner surface of the heat-concentrating cover form a heating zone. Since the electric heating unit is disposed on the bottom side of the groove and closely attached to it, the heat generated by the electric heating unit is preferentially transferred through the groove to the heating tank to heat the water in the heating zone. This quickly heats a portion of the water inside the heat-concentrating cover, and the generated water vapor rises within the heat-concentrating cover and diffuses outward from the mist outlet. Water flow between the bottom end of the heat-concentrating cover and the heating tank can be achieved through an assembly gap or gap fit, creating a water flow channel. After the water in the heat-concentrating cover is heated to boiling and vaporized, water outside the heat-concentrating cover replenishes the water inside through the water flow channel, preventing dry burning.

[0039] A cover 600 is provided over the opening 111 of the outer shell 110. A mist outlet 610 is provided in the middle of the cover 600, and the mist outlet 610 is located above the heat-concentrating cover 500.

[0040] In this embodiment, the water tank is supported by an inner shell and an outer shell. The weight of the shell and the shell is applied to the base plate through the support legs and pillars. The water level can be accurately determined by measuring the vertical pressure change through the weight sensor on the base plate, thus avoiding the phenomenon of dry burning due to low water level in the water tank.

[0041] Compared to existing technologies, traditional detachable water tanks cannot effectively integrate liquid level sensors, requiring fixed structures or complex power supply schemes. This embodiment avoids the limitations of sensor installation in independently detachable tank structures, using a weight sensor to indirectly monitor water volume. The rigid connection structure between the support legs and the support column ensures pressure measurement accuracy. When the obtained weight information is lower than a set threshold, heating is stopped or a water replenishment reminder is issued, effectively reducing the risk of dry burning.

[0042] In an optional embodiment, such as Figure 1 As shown, the sensing end of the weight sensor 220 is disposed on the bottom surface of the base plate 200 for contacting the bearing surface. At least three weight sensors 220 are provided, arranged in a circular array around the center of the base plate 200. The weight sensors can be implemented using resistance strain gauge sensors or piezoelectric sensors, which generate electrical signal changes through the deformation of an elastic body. The circular array distribution means that multiple sensors are arranged at equal angular intervals around the center point of the base plate, specifically using an equilateral triangle or square layout. In some embodiments, such as... Figure 1As shown, four weight sensors are configured, forming a symmetrical support structure that can compensate for measurement errors caused by eccentric loads. Those skilled in the art will understand that the number of weight sensors can be adjusted to five, six, or other different quantities depending on actual usage requirements.

[0043] In this embodiment, when the water tank is placed in the inner shell, its weight is transmitted to the bottom plate through the legs and pillars. Three or more symmetrically distributed weight sensors form a planar support system to ensure accurate calculation of the total weight and precise acquisition of the water level in the water tank, effectively avoiding the risk of dry burning caused by misjudgment of the liquid level.

[0044] In an optional embodiment, such as Figure 2 and Figure 3 As shown, the inner side of the annular bottom wall 121 is provided with an annular assembly groove 123, the groove opening of the annular assembly groove 123 is set upward, the outer edge of the heating plate 300 is bent downward to form an annular buckle 320, the annular buckle 320 is embedded in the annular assembly groove 123 for fixation, and the top surface of the heating plate 300 is flush with the upper side of the annular bottom wall 121.

[0045] In this embodiment, the top surface of the heating plate and the upper side of the annular bottom wall form a support surface for fitting the bottom of the water tank, which can effectively support the water tank. The annular buckle and the annular mounting groove of the heating plate are embedded in the vertical direction. After the water tank is placed into the inner shell, the bottom of the water tank further limits the embedded assembly to ensure the installation stability of the heating plate. At the same time, the groove in the middle of the heating plate is in contact with the heating groove at the bottom of the water tank. An electric heating unit is set on the lower side of the groove, which can directly and efficiently transfer heat to the water through the groove and the heating groove.

[0046] When the water inside the heat exchanger is heated, the water vibrates, which can easily cause the heat exchanger to shift within the water tank. To better limit the movement of the heat exchanger, in one optional embodiment, such as... Figure 2 and Figure 3 As shown, the sidewall 411 of the heating tank 410 expands outward from bottom to top, and the bottom end of the heat-concentrating cover 500 abuts against the sidewall 411, forming a water flow channel through a gap fit. The outward expansion of the sidewall 411 from bottom to top means that the sidewall 411 is inclined, making the diameter at the opening of the heating tank 410 larger than the diameter at the bottom. This outward expansion makes the heat-concentrating cover 500 easier to assemble, and when the bottom end of the heat-concentrating cover 500 abuts against the sidewall 411, it can be positioned, preventing the bottom end of the heat-concentrating cover 500 from shaking or shifting due to water vibration when heating the water inside.

[0047] In this embodiment, the sidewall of the heating tank is arranged to expand outward from bottom to top so that when the bottom end of the heat-gathering cover abuts against the sidewall, it will not be in direct contact with the sidewall. The gap between the heat-gathering cover and the sidewall can be used to create a channel for water flow.

[0048] In an optional embodiment, the sidewall of the heating tank is provided with a first threaded section, and the outer side of the bottom of the heat-gathering cover is provided with a second threaded section. An axial groove is provided in either the first or second threaded section, which forms a channel for water flow between the heat-gathering cover and the water tank. The axial groove is a guide groove milled axially on the first or second threaded section. If the milling depth is close to the thread tooth height, the thread is a discontinuous, intermittent thread. This ensures that the thread can be rotated for assembly, while allowing water to flow along the discontinuous space (i.e., the axial groove) on the threaded section.

[0049] In the above embodiments, the channels used to construct water flow can replenish the water inside the heat-collecting shroud after the water in the heat-collecting shroud has vaporized, thus preventing dry burning.

[0050] In an optional embodiment, a heat insulation cavity 130 is provided between the outer wall of the water tank 400 and the inner wall of the inner shell 120. The heat insulation cavity 130 can reduce the conduction of heat within the water tank 400 through the side wall, thereby maintaining the temperature through heat transfer barrier.

[0051] In an optional embodiment, such as Figure 2 and 4 As shown, the outer side wall of the inner shell 120 is provided with a plurality of lifting lugs 124, and the bottom of the opening 111 of the outer shell 110 is provided with a plurality of lifting feet 112 corresponding to the lifting lugs 124. The lifting lugs 124 are fixedly connected to the lifting feet 112 by bolts. The connection between the lifting lugs and the lifting feet further strengthens the connection between the inner shell and the outer shell, and improves the structural stability of the shell.

[0052] In an optional embodiment, such as Figure 2 and 4 As shown, there is a space 140 between the outer side of the inner shell 120 and the inner side of the outer shell 110, and an electrical assembly space between the heating plate 300 and the base plate 200. The air in the space forms a thermal barrier, preventing heat from the inner shell and water tank from being transferred to the outer shell, thus avoiding the outer shell becoming too hot to touch, while also reducing heat loss and improving heat preservation efficiency. The electrical assembly space is used to install the heating plate's drive circuit (such as relays, thermostats, fuses), wire terminal blocks, temperature sensors (such as NTC probes), etc., preventing components from being exposed and causing safety hazards.

[0053] In an optional embodiment, such as Figure 2 and Figure 4As shown, the cover 600 includes an upper cover 620, a cover plate 630, and a connecting rubber ring 640. The connecting rubber ring 640 has an "E"-shaped cross-section with a first annular protrusion, a second annular protrusion, and a third annular protrusion extending inward. The top edge of the water tank 400 is horizontally flanged outward, and this flange is embedded between the first and second annular protrusions. The outer edge of the cover plate 630 is embedded between the second and third annular protrusions. The upper cover 620... The inner side is provided with a buckle groove 621, and the third ring protrusion is placed in the buckle groove 621. The inner side of the upper cover 620 and the outer side of the opening 111 of the outer shell 110 are provided with mutually cooperating snap-fit ​​parts (not shown in the figure). When the upper cover 610 is covered on the opening 111 by the snap-fit ​​parts, the buckle groove 621 presses the third ring protrusion, the outer edge of the cover plate 630, the second ring protrusion, the flange of the water tank 400, and the first ring protrusion on the top surface of the opening 111 in the vertical direction.

[0054] In this embodiment, the snap-fit ​​component is a conventional snap-fit ​​member. The top cover is placed in the opening of the outer shell by misaligning the snap-fit ​​component, and then the top cover is rotated to engage the snap-fit ​​component, thus securing the top cover tightly at the opening. The connecting rubber ring is made of a flexible sealing material, such as rubber or silicone. The connecting rubber ring seals the cover plate, water tank, and opening, preventing liquid from seeping out along the flange of the water tank and preventing steam from unexpectedly escaping from the edge of the cover plate. The flange of the water tank overlaps the opening via a first annular protrusion, evenly distributing the weight of the water tank to the opening of the outer shell, avoiding localized stress concentration that could lead to structural deformation.

[0055] In an optional embodiment, such as Figure 2 As shown, a mist guide cover 631 is provided in the middle of the cover plate 630. The mist guide cover 631 has an upper mist guide cover and a lower mist guide cover. The lower mist guide cover is detachably disposed in the middle of the cover plate 630. The upper mist guide cover is placed on the lower mist guide cover and pressed tightly by the bottom side of the mist outlet 610. The upper and lower mist guide covers are respectively provided with upper and lower mist guide openings that are staggered from each other. The upper mist guide opening is aligned with the mist outlet. The staggered upper and lower mist guide openings mean that the upper and lower mist guide openings do not overlap in the vertical direction, preventing foreign objects from falling directly into the heat-gathering hood and intercepting solid particulate matter.

[0056] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A heat-concentrating humidifier with anti-dry-burning properties, characterized in that, include: The housing (100) includes an outer shell (110) and an inner shell (120). The top of the outer shell (110) is provided with an opening (111). The inner shell (120) is a cylindrical shape with an open upper part and a through-hole at the bottom. The upper part of the inner shell (120) is connected to the bottom of the opening (111). The lower part of the inner shell (120) is provided with an annular bottom wall (121). The bottom side of the annular bottom wall (121) is provided with a support leg (122). The outer shell (110) has a base plate (200). The base plate (200) is provided with a support column (210). The support leg (122) is fixedly connected to the support column (210) so that the weight of the housing (100) and the weight borne by the housing (100) act on the base plate (200). The base plate (200) is provided with a plurality of weight sensors (220). The heating plate (300) has its outer edge embedded in the inner ring side of the annular bottom wall (121), and a groove (310) is provided in the middle of the heating plate (300), and an electric heating unit is provided in the groove (310); A water tank (400) is detachably disposed in the inner shell (120). The bottom of the water tank (400) is provided with a heating groove (410) corresponding to the groove (310). When the water tank (400) is placed in the inner shell (120), the bottom of the water tank (400) is in contact with the annular bottom wall (121) and the groove (310). A heat-concentrating cover (500) is disposed in the middle of the water tank (400), and there is a water flow channel between the bottom end of the heat-concentrating cover (500) and the heating tank (410); A cover (600) is provided over the opening (111) of the outer shell (110), and a mist outlet (610) is provided in the middle of the cover (600), which is located above the heat-concentrating cover (500).

2. A heat-concentrating humidifier with anti-dry-burning properties according to claim 1, characterized in that: The sensing end of the weight sensor (220) is disposed on the bottom surface of the base plate (200) for contacting the bearing surface. At least three weight sensors (220) are provided, and the weight sensors (220) are distributed in a circular array around the center of the base plate (200).

3. A heat-concentrating humidifier with anti-dry-burning properties according to claim 1, characterized in that: The inner side of the annular bottom wall (121) is provided with an annular assembly groove (123), the groove opening of the annular assembly groove (123) is set upward, the outer edge of the heating plate (300) is bent downward to form an annular buckle (320), the annular buckle (320) is embedded in the annular assembly groove (123) for fixation, and the top surface of the heating plate (300) is flush with the upper side of the annular bottom wall (121).

4. A heat-concentrating humidifier with anti-dry-burning properties according to claim 1, characterized in that: The side wall (411) of the heating tank (410) is arranged to expand outward from bottom to top, and the bottom end of the heat-concentrating cover (500) abuts against the side wall (411) and forms a water flow channel through a gap fit.

5. A heat-concentrating humidifier with anti-dry-burning properties according to claim 1, characterized in that: The side wall (411) of the heating tank (410) is provided with a first threaded section, and the bottom outer side of the heat-concentrating cover (500) is provided with a second threaded section. An axial hook groove is provided in the first threaded section or the second threaded section, and the axial hook groove forms a channel for water flow between the heat-concentrating cover (500) and the water tank (400).

6. A heat-concentrating humidifier with anti-dry-burning properties according to claim 1, characterized in that: The outer wall of the water tank (400) and the inner wall of the inner shell (120) have a heat insulation cavity (130).

7. A heat-concentrating humidifier with anti-dry-burning properties according to claim 1, characterized in that: The outer side wall of the inner shell (120) is provided with a number of lifting lugs (124), and the bottom of the opening (111) of the outer shell (110) is provided with a number of lifting feet (112) corresponding to the lifting lugs (124). The lifting lugs (124) are fixedly connected to the lifting feet (112) by bolts.

8. A heat-concentrating humidifier with anti-dry-burning properties according to claim 1, characterized in that: There is a space (140) between the outer side of the inner shell (120) and the inner side of the outer shell (110), and there is an electrical assembly space between the heating plate (300) and the base plate (200).

9. A heat-concentrating humidifier with anti-dry-burning properties according to claim 1, characterized in that: The cover (600) includes an upper cover (620), a cover plate (630), and a connecting rubber ring (640). The connecting rubber ring (640) has an "E"-shaped cross-section with a first annular protrusion, a second annular protrusion, and a third annular protrusion extending inward. The top edge of the water tank (400) is horizontally flanged outward, and this flange is embedded between the first annular protrusion and the second annular protrusion. The outer edge of the cover plate (630) is embedded between the second annular protrusion and the third annular protrusion. The inner edge of the upper cover (620) is... The side is provided with a buckle groove (621), and the third ring protrusion is placed in the buckle groove (621). The inner side of the upper cover (620) and the outer side of the opening (111) of the outer shell (110) are provided with mutually cooperating snap-fit ​​parts. When the upper cover (620) is snapped into the opening (111) by the snap-fit ​​parts, the buckle groove (621) presses the third ring protrusion, the outer edge of the cover plate (630), the second ring protrusion, the flange of the water tank (400), and the first ring protrusion on the top surface of the opening (111) in the vertical direction.

10. A heat-concentrating humidifier with anti-dry-burning properties according to claim 9, characterized in that: The cover plate (630) is provided with a fog guide cover (631) in the middle. The fog guide cover (631) is provided with a fog guide upper cover and a fog guide lower cover. The fog guide lower cover is detachably provided in the middle of the cover plate (630). The fog guide upper cover is placed on the fog guide lower cover and pressed by the bottom side of the fog outlet (610). The fog guide upper cover and the fog guide lower cover are respectively provided with upper fog guide openings and lower fog guide openings that are staggered from each other. The upper fog guide opening is aligned with the fog outlet (610).

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