CN218588945U - Cleaning device and heating body - Google Patents

Abstract

The disclosure relates to a cleaning device and a heating body, wherein the cleaning device comprises the heating body, and the heating body comprises a heating body shell, a heat conducting rod, a heating wire, a thermocouple detection element and a supporting body; the two opposite ends of the heat conducting rod are respectively marked as a first end and a second end, the heat conducting rod is tightly pressed in a cavity of the heating body shell, and a thermocouple groove is formed in the end face, located at the first end, of the heat conducting rod; the heating wire is wound on the heat conducting rod and is configured for heating; the measuring point of the thermocouple detecting element is positioned in the thermocouple groove; the support body is configured to mate with the thermocouple well; one end of the support body, which is close to the measuring point, is provided with a notch, and the measuring point is positioned in the notch. The support body in the cleaning equipment can not only provide support for the thermocouple groove of the heat conducting rod, but also play a role in protecting the measuring point, and avoid the situation that the measuring point is damaged due to the collapse of the heat conducting rod or is in contact with the heating wire to cause short circuit when a heating body is manufactured.

Description

Cleaning device and heating body

Technical Field

The present disclosure relates to the field of cleaning machines, more precisely to a cleaning device; the present disclosure also relates to a heating body.

Background

There are many devices available on the market that are capable of emitting steam for the purpose of deep cleaning of floors or carpets, such as cordless steam washers, cordless steam mops, and the like. These apparatuses are each provided internally with heating means for generating steam, and among the heating means, the most important means is a heating body for heating water.

A heating wire for generating heat and a thermocouple for acquiring a temperature in real time are generally disposed inside the heating body. In order to install the thermocouple, a thermocouple well is usually provided in the heating body. After the pipe shrinking process is performed, the heating body may be collapsed at the position of the thermocouple, thereby causing damage to the thermocouple or causing short circuit in contact between the thermocouple and the heating wire.

SUMMERY OF THE UTILITY MODEL

This disclose for solve the problem that exists among the prior art, provide a cleaning device and heating member.

According to a first aspect of the present disclosure, there is provided a cleaning device comprising a heating body comprising:

a heater housing;

the two opposite ends of the heat conducting rod are respectively marked as a first end and a second end; the heat conducting rod is tightly pressed in the cavity of the heating body shell, and a thermocouple groove is formed in the end face of the heat conducting rod, which is positioned at the first end;

a heating wire wound around the heat conductive rod and configured to heat;

a thermocouple detection element, a measurement point of which is located within the thermocouple slot;

a support body configured to mate with the thermocouple well; one end of the supporting body, which is adjacent to the measuring point, is provided with a notch, and the measuring point is positioned in the notch.

In one embodiment of the present disclosure, the support body is provided with a first extending portion and a second extending portion on two opposite sides, the first extending portion and the second extending portion enclose the gap and are configured to support a position corresponding to the measuring point in the thermocouple groove.

In one embodiment of the present disclosure, the support body is a sheet shape, and the thermocouple well is configured to have a shape adapted to the support body.

In one embodiment of the disclosure, the heating body casing is tightly matched with the heat conducting rod after being contracted.

In one embodiment of the present disclosure, the support body is configured to be made of the same material as the heat conduction rod; after the heating body shell is subjected to shrinking treatment, the supporting body and the heat conducting rod are configured to be extruded into a whole.

In one embodiment of the present disclosure, the heating body includes a front support and a rear support;

the front support is located at the first end of the heat conduction rod and is configured to support the first end of the heat conduction rod; the rear support portion is located at the second end of the heat conduction rod and is configured to support the second end of the heat conduction rod.

In one embodiment of the present disclosure, the material of the heat conducting rod, the support body, the front support part and the rear support part is magnesium oxide.

In one embodiment of the present disclosure, a radial dimension of the front and rear supports is greater than a radial dimension of the heat conduction rod, and a through groove extending in an axial direction thereof is provided on outer walls of the front and rear supports.

In one embodiment of the present disclosure, the thermocouple detection element includes a positive wire and a negative wire;

the rear supporting part and the part of the heat conducting rod close to the rear supporting part are provided with a positive wire channel and a negative wire channel, and the positive wire channel and the negative wire channel in the heat conducting rod are communicated with the thermocouple groove;

the positive electrode wire and the negative electrode wire respectively extend from the outer side of the second end of the heating body to the thermocouple groove and are connected in the thermocouple groove to form the measuring point.

In one embodiment of the present disclosure, the heat conducting rod is provided with a first conducting wire channel and a second conducting wire channel; two ends of the heating wire respectively extend into the first wire channel and the second wire channel on the heat conducting rod;

the heating body further comprises a first lead and a second lead, and the first lead and the second lead penetrate into a first lead channel and a second lead channel of the heat conducting rod from the rear supporting part and extend into the front supporting part; the first lead and the second lead are respectively in contact fit with the parts, located in the first lead channel and the second lead channel, of the heating wires.

In one embodiment of the present disclosure, a line connecting the positive wire passage and the negative wire passage is perpendicular to a line connecting the first wire passage and the second wire passage in a cross section of the heating body.

In one embodiment of the present disclosure, a gap between the heater case and the heat conductive rod, the front support and the rear support is filled with magnesium oxide powder.

In one embodiment of the disclosure, the heating wire extends from an area of the first end to an area of the second end, and the thermocouple detection element is configured to detect a temperature of the heat conduction rod adjacent to the area of the first end.

In one embodiment of the present disclosure, a distance between a measuring point of the thermocouple detection element and the end surface of the first end of the heat conduction rod ranges from 5.5 mm to 10.5mm.

According to a second aspect of the present disclosure, there is provided a heating body including:

a heater housing;

the two opposite ends of the heat conducting rod are respectively marked as a first end and a second end; the heat conducting rod is tightly pressed in the cavity of the heating body shell, and a thermocouple groove is formed in the end face of the heat conducting rod, which is positioned at the first end;

a heating wire wound around the heat conductive rod and configured to heat;

a thermocouple detection element, a measurement point of which is located within the thermocouple slot;

a support body configured to mate with the thermocouple well; the end of the supporting body, which is close to one end of the measuring point, is provided with a notch, and the measuring point is positioned in the notch.

According to the cleaning device, the support body is matched with the thermocouple groove, and the measuring point of the thermocouple detecting element is located in the notch of the end head of the support body. The support body can not only provide support for the thermocouple groove of the heat conducting rod, but also play a role in protecting a measuring point, and avoid the situation that the measuring point is damaged due to the collapse of the heat conducting rod or is in contact with a heating wire to cause short circuit when a heating body is manufactured.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic perspective view of a cleaning apparatus provided by an embodiment of the present disclosure;

fig. 2 is a schematic cross-sectional view of a heating device provided by an embodiment of the present disclosure;

FIG. 3 is a cross-sectional schematic view of a housing and seal ring provided by embodiments of the present disclosure;

fig. 4 is a schematic cross-sectional view of an assembly of the heating body, the temperature detection element and the insulating sealing portion provided in the embodiment of the present disclosure;

FIG. 5 is a schematic cross-sectional view of an assembly of the heating body, the temperature detecting element and the insulating sealing portion with the heat conductive rod removed, according to an embodiment of the present disclosure;

FIG. 6 is an enlarged view taken at A in FIG. 5;

fig. 7 is a side schematic view of a heater body with the heater body enclosure removed provided by an embodiment of the present disclosure;

fig. 8 is a schematic cross-sectional view of a heating body provided by an embodiment of the present disclosure;

fig. 9 is an exploded schematic view of a heating body provided by an embodiment of the present disclosure;

FIG. 10 is a schematic perspective view of a heat conduction rod provided by an embodiment of the present disclosure;

fig. 11 is a schematic perspective view of a heating body provided by an embodiment of the present disclosure with a front support removed;

fig. 12 is a further schematic cross-sectional view of a heating body provided by an embodiment of the present disclosure;

fig. 13 is a schematic side view of a first lead and a second lead and a positive lead and a negative lead provided by an embodiment of the disclosure.

The one-to-one correspondence between component names and reference numbers in fig. 1 to 13 is as follows:

1. a body; 2. a heating device; 21. a water inlet; 22. an air outlet; 23. a heating body; 231. a heating wire; 232. a heater housing; 233. a heat conducting rod; 2331-thermocouple well; 234. a support body; 2341-a notch; 2342 — first extension; 2343 — a second extension; 235. a front support portion; 236. a rear supporting part; 237-through slot; 2381. a first conductive line; 2382. a second conductive line; 2391-first conductor channel; 2392-a second wire channel; 24. a housing; 25. an inner cavity; 26. a thermocouple detection element; 261. measuring points; 262. a positive line; 263. a negative electrode line; 2641-positive line channel; 2642-negative line channel; 27. an insulating seal portion; 28. a seal ring; 31. a gas injection hole; 4. and (7) rolling and brushing.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Specific embodiments of the present disclosure are described below with reference to the accompanying drawings.

In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used only to indicate relative positional relationships between relevant portions, and do not limit absolute positions of the relevant portions.

In this document, "first", "second", and the like are used only for distinguishing one from another, and do not indicate the degree and order of importance, and the premise that each other exists, and the like.

In this context, "equal," "same," and the like are not strictly mathematical and/or geometric limitations, but also encompass errors that may be understood by one skilled in the art and that may be allowed for manufacturing or use, etc.

The utility model relates to a cleaning device and heating member, this cleaning device include heating device, are provided with the heating member in this heating device, and this heating member includes heating body shell, heat conduction stick, heater strip, thermocouple detecting element and supporter.

The heat conducting rod is tightly pressed in the cavity of the heating body shell, and a heating wire for heating is wound on the heat conducting rod. Under the condition that the two opposite ends of the heat conducting rod are respectively marked as a first end and a second end, a thermocouple groove is formed in the end face, located at the first end, of the heat conducting rod, and the measuring point of the thermocouple detecting element is located in the thermocouple groove. The thermocouple groove is provided with a supporting body used for supporting the heat conducting rod, a notch is formed in the end head of one end, close to the measuring point, of the supporting body, and the measuring point of the thermocouple detection element is located in the notch.

The cleaning device of the present disclosure, the support body is fitted with the thermocouple groove, and the measuring point of the thermocouple detection element is located in the notch of the end of the support body. The support body can not only provide support for the thermocouple groove of the heat conducting rod, but also play a role in protecting a measuring point, and the situation that the measuring point is damaged due to collapse of the heat conducting rod or a short circuit is caused by contact with a heating wire when a heating body is manufactured is avoided.

For ease of understanding, the specific structure of the cleaning device of the present disclosure and its operating principle will be described in detail below with reference to fig. 1 to 13 in conjunction with one embodiment.

As shown in fig. 1 and 2, the present disclosure provides a cleaning apparatus including a body 1, a heating device 2, and a showerhead.

As shown in fig. 1, the machine body 1 serves as a carrier and is configured to mount various functional elements required for the cleaning apparatus, including at least the heating device 2 and the showerhead.

The heating device 2 is disposed on the machine body 1, as shown in fig. 2 and fig. 3, the heating device 2 includes a housing 24 and a heating body 23, an inner cavity 25 is disposed inside the housing 24, a water inlet 21 and an air outlet 22 are further disposed, the water inlet and the air outlet are communicated with the inner cavity 25, and the heating body 23 extends into the inner cavity 25 of the heating device 2 from one end of the heating device 2.

The heating device 2 is configured to allow only a part of the heating body 23 to be covered by the water flow, and to maintain the maximum temperature of the surface of the other part of the heating body 23, which is not covered by the water flow, at 280-580 ℃, so that at least part of the water entering the heating device 2 from the water inlet 21 is discharged from the air outlet 22 after being heated and atomized. Here, "covering" in the present disclosure means that water in the inner cavity of the housing 24 is in contact with at least the bottom of the heating body 23 at a certain axial position, or extends from the bottom to the side wall position, or covers the entire surface of the heating body 23 at the axial position. It should be noted here that when the temperature of the heating body 23 increases, the water covering the position of the heating body 23 may be in a boiling state, and the boiling water may be in a "jumping" state in a partial region of the heating body 23, and this state should also be understood as a state where the water flow covers the heating body 23. Alternatively, the heating body 23 is heated up, when the heating body 23 is heated to a predetermined temperature, water is injected into the inner cavity of the casing 24 through the water inlet 21, and the injected water will be in a "jumping" state when encountering the heating body 23 with a higher temperature, which is also understood as water flow covering the heating body 23.

The maximum temperature of the surface of the other partial heating body 23 not covered by the flow of water, maintained at 280-580 c, means: in the axial direction of the heating body 23, in the region of the heating body which is far away from the region covered by water, on the surface of the other part of the heating body 23 which is not covered by the water flow, the temperature of at least part of the surface is maintained at 280-580 ℃; the whole surface temperature can be maintained at 280-580 deg.C, or part of the surface temperature can be maintained at 280-580 deg.C, and part of the surface temperature can be below 280 deg.C.

The jet head (not shown in the figure) is internally provided with a steam passage which is communicated with the air outlet 22 of the heating device 2, and is provided with at least one jet hole 31.

It will be appreciated that the cleaning device of the present disclosure may also include a water supply assembly such as a water reservoir and an infusion pump (both not shown in the figures) and a cleaning assembly such as a roller brush to scrub the work surface. Wherein, the infusion pump is used for pumping the water in the water storage tank into an inner cavity 25 of the heating device 2, and then the heating body 23 heats the water to generate water mist.

As shown in fig. 1, in one embodiment of the present disclosure, the air injection holes 31 and the roll brush 4 are disposed on the bottom surface of the machine body 1. When the cleaning device is used for cleaning, the heating device 2 is controlled to spray water mist from the air injection holes 31 to wash the working surface, and the rolling brush 4 is controlled to rotate to scrub the working surface.

Specifically, the steam injection process of the cleaning device of the present disclosure may include the following steps:

when the cleaning device receives the air injection command, the liquid conveying pump and the heating device 2 are started, and the water in the liquid storage tank is continuously pumped into the water inlet 21 of the heating device 2 by the liquid conveying pump.

After entering the heating device 2 from the water inlet 21, the water covers a portion of the heating body 23, the temperature of this portion of the heating body 23 being relatively low, typically lower than 100 ℃, while the maximum temperature of the surface of the other portion of the heating body 23 not covered by the flow of water is maintained at 280-580 ℃ above the characteristic temperature of the water, ledenveros. The water in the region of the partial heating body 23 covered with the water flow repeatedly washes over the other partial heating body 23 not covered with the water flow during the boiling process, and since the temperature of the partial heating body 23 is higher than the characteristic temperature of ledenflor of water, the water will be in a film-forming boiling state on the surface of the other partial heating body 23 not covered with the water flow. In the film boiling state, the heating body 23 indirectly transfers heat to the water inside through a gas film attached to the surface. The heat conductivity coefficient of the water vapor is far smaller than that of the water, so that the boiling speed of water drops is greatly reduced, and part of water is scattered into water mist in the flushing process before boiling.

The mist flows out of the outlet 22 of the heating device 2, passes through the steam passage and is finally sprayed out of the gas spraying holes 31 of the gas spraying head, and the user can see that the cleaning device is spraying the mist normally.

After many tests, when the maximum temperature of the surface of the other part of the heating body 23 which is not covered by the water flow is 280-580 ℃, the flow rate of the water mist sprayed out of the air spraying holes 31 is large, pure white water mist is presented, the visibility is high, and a user can easily observe the existence of the water mist.

Specifically, as shown in fig. 2, in an embodiment of the present disclosure, two opposite ends of the heating body 23 are respectively denoted as a first end and a second end; when the cleaning device is placed on the horizontal plane, the first end is higher than the second end; and the first end is configured to maintain a maximum surface temperature of 280-580 deg.c. In the working process of the heating device 2, after water enters the heating device 2 from the water inlet 21 at the lower part, the water can gradually flow upwards from the lower part; the water is heated continuously in the flowing process, when the water flow contacts another part of the heating body 23 which is not covered by the water flow, at least part of the water is heated and atomized, and then the water mist is discharged from the upper air outlet 22 along the heating device.

In order to further improve the water mist emission effect of the cleaning device, in one embodiment of the present disclosure, the heating device 2 is configured to maintain the maximum surface temperature of the other partial heating body 23, which is not covered by the water flow, at 350-400 ℃. After many experiments, when the heating device 2 is configured to maintain the maximum temperature of the surface of the other partial heating body 23, which is not covered by the water flow, at 350 to 400 ℃, the amount of the water mist sprayed by the cleaning apparatus is large, and the user can easily recognize that the cleaning apparatus is spraying the water mist normally.

In one embodiment of the present disclosure, as shown in fig. 2, the second end is fixed to the bottom end of the inner cavity 25, and the first end is spaced from the top end of the housing 24. Thus, the first end is cantilevered and does not contact the top end of the housing 24, thereby preventing the first end from transferring more heat to the housing 24, which may cause the housing 24 to be at an excessively high temperature and burn out other objects. In fact, in the presence of water in the heating device 2, the temperature of the outer surface of the housing 24 does not substantially exceed 120 ℃ even if the temperature of the first end reaches 300 ℃ or higher.

As shown in fig. 2, in one embodiment of the present disclosure, the heating device 2 is configured to be mounted on the machine body 1 and placed at an angle to the horizontal. In this way, in the operation of the heating device 2 of the present disclosure, after water enters the heating device 2 from the lower water inlet 21, only a part of the heating body 23 is covered, so that the heating body 23 is naturally divided into a part covered by the water flow and another part uncovered by the water flow, and thus, there is no need to provide a separate device.

As shown in fig. 4, 5 and 7, in one embodiment of the present disclosure, the heating body 23 includes a heating wire 231, a heat conduction rod 233 and a heating body housing 232. Wherein the heating wire 231 is wound around the heat conducting rod 233, and the heating wire 231 extends from an area of the first end to an area of the second end. The heat conduction rod 233 and the heating wire 321 are both disposed in the heating body case 232. The material of the heating body case 232 may be stainless steel; the heat conduction rod 233 serves to rapidly conduct heat generated from the heating wire 321.

As shown in fig. 4 and 5, in one embodiment of the present disclosure, the end of the heating body 23 is further provided with an insulating seal 27. The insulating sealing portion 27 is disposed at the open end of the housing 24 and is fixedly connected to the second end. The insulating sealing portion 27 has two purposes, namely, sealing water in the casing 24 to prevent water from flowing out of the casing 24, and preventing the heating wire from being conducted with the outside to prevent electric leakage.

As shown in fig. 2, in one embodiment of the present disclosure, the heating body 23 is provided separately from the case 24. Wherein the first end is cantilevered as described above and does not contact the housing 24; and the second end is only fixedly connected with the insulating sealing part 27 and does not contact with the shell 24, so that the first end and the second end can be prevented from transferring heat to the shell 24, and the shell 24 is prevented from burning other objects due to overhigh temperature. In order to further improve the sealing effect, as shown in fig. 3, in an embodiment of the present disclosure, a sealing ring 28 may be further sleeved on the insulating sealing portion 27, and the sealing ring 28 is used to seal the insulating sealing portion 27 and the housing 24, so as to further prevent water from flowing out of the housing 24.

In order to control the temperature of the first end of the heating body 23, as shown in fig. 6, in one embodiment of the present disclosure, the heating device 2 further includes a temperature detecting element for detecting the temperature of the first end and a control unit (not shown in the figure); the control unit is configured to control the heating power of the heating body 23 based on the temperature detection result of the temperature detection element so that the maximum surface temperature of the first end is maintained at 280-580 ℃.

As shown in fig. 6, in one embodiment of the present disclosure, the detection point of the temperature detection element is disposed inside the first end of the heat conductive rod 233. Since the heating body 23 has a fast heat conduction speed, when the temperature detecting element is disposed inside the first end of the heat conducting rod 233, the detected temperature can also be regarded as the temperature of the area adjacent to the first end.

As shown in fig. 6, the temperature detection element may be a thermocouple detection element 26, or may be another type of detection element. When the temperature detection element employs the thermocouple detection element 26, the measurement point 261 of the thermocouple detection element 26 is disposed inside the first end.

As shown in fig. 7, 8 and 9, in one embodiment of the present disclosure, the heating body 23 further includes a front support 235 and a rear support 236; the front support 235 is located at a first end of the heat conduction rod 233, and is configured to support the first end of the heat conduction rod 233; the rear supporting portion 236 is located at a second end of the heat conduction rod 233, and is configured to support the second end of the heat conduction rod 233. Specifically, front supporting part 235 and rear supporting part 236 are respectively provided at both ends of heat conducting rod 233, so that heat conducting rod 233 can be fixed from both sides, and shaking of heat conducting rod 233 is avoided.

In an embodiment of the present disclosure, the heating body housing 232 is tightly fitted with the heat conducting rod 233 after being shrunk, that is, after the heating body housing 232 is shrunk, the heating body housing 232 and the heat conducting rod 233 and other components located in the heating body housing 232 can be tightly fitted together, so that the heat conducting efficiency of the heating body 23 can be effectively improved, and meanwhile, the stability between the structures is also improved.

Further, as shown in fig. 9, in one embodiment of the present disclosure, the radial dimension of the front support 235 and the rear support 236 is greater than the radial dimension of the heat conduction rod 233, and the through groove 237 extending in the axial direction thereof is provided on the outer wall of the front support 235 and the rear support 236, so that the front support 235 and the rear support 236 can be deformed at the through groove 237 thereof during the shrinkage of the heating body case 232, which is advantageous for the shrinkage of the heating body case 232, and the gap between the front support 235, the rear support 236 and the heating body case 232 can be greatly reduced, so that the front support 235 and the rear support 236 are more compact, the heat conduction efficiency at the front support 235 and the rear support 236 is improved, and the structural stability between them and the heat conduction rod 233 is ensured.

In one embodiment of the present disclosure, two through grooves 237 may be opened in the front and rear supporting portions 235 and 236 to be opposite to each other and extend in the axial direction thereof as shown in fig. 9, while in other embodiments of the present disclosure, four or more through grooves 237 may be opened in the front and rear supporting portions 235 and 236 to extend in the axial direction thereof, and the specific number is not limited.

As shown in fig. 8, in one embodiment of the present disclosure, the distance between the measuring point 261 of the thermocouple detection element 26 and the end surface of the first end of the heat conductive rod 233 ranges from 5.5 to 10.5mm. As shown in the figure, the measurement point 261 of the thermocouple detection element 26 is a connection point of the positive electrode line 262 and the negative electrode line 263, and the connection point is in a range of 5.5 to 10.5mm from the end surface of the first end of the heat conduction rod 233, which better reflects the maximum temperature of the heating body 23 during operation. This is because, in the case of the heating body 23, the heating body 23 is heated as a whole, and the temperature at the both end positions thereof is lower than that at the middle position thereof. When the water flow covers one end area of the heating body 23 in the axial direction and the other end area is not covered by the water flow, the temperature of the heating body 23 at the position can be reduced under the action of the water, and the end area far away from the water can keep the temperature of the heating body 23 due to the fact that the end area is not covered by the water flow, and the farther the distance from the water flow is, the smaller the influence of the water flow on the temperature of the heating body 23 is. Under the dimensional parameters of the heating body 23 of the present disclosure, the measurement point 261 is set within a range of 5.5 to 10.5mm from the end surface of the first end of the heat conduction rod 233, better reflecting the highest temperature of the heating body 23 during operation.

As shown in fig. 10 and 11, in one embodiment of the present disclosure, a thermocouple groove 2331 is opened on an end surface of the heat-conducting rod 233 at the first end, the thermocouple groove 2331 being configured to receive the measurement point 261 of the thermocouple detection element 26; the measuring point 261 is a connecting point between two metals or alloys constituting the thermocouple detection element 26. The heating body 23 further includes a supporter 234, the supporter 234 is disposed in the thermocouple well 2331, and an end of the supporter 234 adjacent to the measurement point 261 of the thermocouple detection element 26 is provided with a notch 2341 for receiving the measurement point 261.

Specifically, as shown in fig. 9, in an embodiment of the present disclosure, the supporting body 234 is provided with a first extending portion 2342 and a second extending portion 2343 near opposite sides of the measuring point 261, and the first extending portion 2342 and the second extending portion 2343 surround a gap 2341 and are configured to support a position corresponding to the measuring point 261 in the thermocouple groove 2331.

In one embodiment of the disclosure, the shape of the notch 2341 interface may be triangular or V-shaped as shown in fig. 8 and 9. In other embodiments of the present disclosure, the shape of the notch 2341 may be other shapes known to those skilled in the art, such as a rectangle, an arc, etc., as long as the notch can protect the measuring point 261.

By arranging the supporting body 234 in the thermocouple groove 2331, the first extending part 2342 and the second extending part 2343 can protect the measuring points from two sides in the pipe shrinking process, and the supporting body 234 can effectively support the heat conducting rod 233 in the pipe shrinking process, so that the heat conducting rod 233 is prevented from collapsing due to the pipe shrinking, and the short circuit between the heating wire 231 and the thermocouple detection element 26 is prevented.

As shown in fig. 9, in one embodiment of the present disclosure, the support body 234 is a sheet-shaped, and the thermocouple well 2331 is configured to have a shape that is fitted to the support body 234. Since the supporting body 234 is formed in a plate shape, it can be well matched with the shape of the thermocouple detection element 26, so that the supporting body 234 can better support the heat conduction rod 233 during the tube shrinking process, thereby preventing the heat conduction rod 233 from collapsing due to the tube shrinking.

In one embodiment of the present disclosure, the support 234 is configured to be the same material as the heat conduction rod 233; after the heating body shell 232 is shrunk, the supporting body 234 and the heat conducting rod 233 are extruded into a whole. The pressing between the support 234 and the heat conducting rod 233 may mean that there is no gap between the support 234 and the heat conducting rod 233, or that there is no obvious limit between the support 234 and the heat conducting rod 233. When the support body 234 and the heat conduction rod 233 are extruded into a whole, the heat conduction efficiency of the heat conduction rod 233 can be effectively improved.

Further, in one embodiment of the present disclosure, the materials of the heat conduction rod 233, the support 234, the front support 235, and the rear support 236 are all magnesium oxide. When the material of the heat conducting rod 233, the supporting body 234, the front supporting part 235, and the rear supporting part 236 is magnesium oxide, heat generated by the heating wire 231 can be rapidly transferred to the heating body case 232, and then water is heated to generate water mist, so that the utilization efficiency of heat generated by the heating wire 231 is improved, heat accumulation inside the heating body 23 can be avoided, and the heating body 23 can normally work.

In one embodiment of the present disclosure, magnesium oxide powder is filled in the gaps between the heater case 232 and the heat conductive rod 233, the front support 235 and the rear support 236; the heating body case 232 is configured to be subjected to a pipe shrinking process. Through filling the magnesium oxide powder in the clearance between heating body shell 232 and heat conduction stick 233, preceding supporting part 235 and back supporting part 236, can improve the heat conduction efficiency of heating body 23, avoid the heat to be detained in heater strip 231, also avoid heater strip 231 and heating body shell 232 to contact, cause the electric leakage. Through carrying out the pyrocondensation pipe to heating body shell 232 and handling, can make the magnesia powder in the heating body shell 232 and tighten more with heat conduction stick 233, preceding supporting part 235 and back supporting part 236 to improve the whole density of magnesia powder in the heating body shell 232 and with heat conduction stick 233, preceding supporting part 235 and back supporting part 236, avoid producing the hole of difficult heat conduction, improve the coefficient of heat conductivity of heating body 23 from this.

As shown in fig. 8 and 9, in one embodiment of the present disclosure, the thermocouple detection element 26 includes a positive wire 262 and a negative wire 263, the positive wire 262 and the negative wire 263 being two different metals or alloys that make up the thermocouple detection element 26, for example, for a K-type thermocouple detection element 26, the positive wire 262 and the negative wire 263 may be a nickel-chromium alloy and a nickel-silicon alloy, respectively. The rear support portion 236 and the portion of the heat conducting rod 233 adjacent to the rear support portion 236 define a positive wire passage 2641 and a negative wire passage 2642, and the positive wire passage 2641 and the negative wire passage 2642 are configured to receive the positive wire 262 and the negative wire 263, respectively. And the positive and negative line passages 2641 and 2642 in the heat conductive rod 233 communicate with the thermocouple well 2331 such that the positive and negative lines 262 and 263 respectively extend from the outside of the second end of the heating body 23 to the thermocouple well 2331 and are fixedly connected in the thermocouple well 2331.

As shown in fig. 9 and 12, in one embodiment of the present disclosure, the heating body 23 further includes a first wire 2381 and a second wire 2382, and the first wire 2381 and the second wire 2382 are used to connect an external power source and the heating wire 231, thereby supplying power to the heating wire 231. Specifically, the heat conducting rod 233 is provided with a first wire guide 2391 and a second wire guide 2392; two ends of the heating wire 231 extend into the first wire passage 2391 and the second wire passage 2392 on the heat conducting rod 233 respectively; the first lead wire 2381 and the second lead wire 2382 penetrate into the first lead wire passage 2391 and the second lead wire passage 2392 of the heat-conducting rod 233 from the rear supporting portion 236 and extend into the front supporting portion 235; the first wire 2381 and the second wire 2382 are respectively in contact fit with the portions of the heating wires 231 located in the first wire passage 2391 and the second wire passage 2392.

Because both ends of the heating wire 231 extend and stretch into the first wire channel 2391 and the second wire channel 2392, the first wire channel 2391 or the second wire channel 2392 can be in good contact with the first wire 2381 or the second wire 2382, and the phenomenon that the heating wire 231 cannot work normally due to poor contact is avoided.

As shown in fig. 13, in the cross section of the heating body 23, the line connecting the positive wire passage 2641 and the negative wire passage 2642 and the line connecting the first wire passage 2391 and the second wire passage 2392 are perpendicular to each other. Since the connection line of the positive wire passage 2641 and the negative wire passage 2642 is perpendicular to the connection line of the first wire passage 2391 and the second wire passage 2392, the distance between the positive wire 262 or the negative wire 263 and the first wire 2381 or the second wire 2382 can be maximized, so that the situation that the positive wire 262 or the negative wire 263 contacts the first wire 2381 or the second wire 2382 to cause the heating wire 231 or the thermocouple detection element 26 to fail to operate normally can be effectively avoided.

Since the positive wire 262 and the negative wire 263 extend from the outside of the second end of the heating body 23 to the thermocouple groove 2331 on the heat conduction rod 233 and are fixedly connected in the thermocouple groove 2331, the first lead wire 2381 and the second lead wire 2382 penetrate from the rear support part 236 into the first lead wire channel 2391 and the second lead wire channel 2392 of the heat conduction rod 233 and extend into the front support part 235, and after the front support part 235, the heat conduction rod 233 and the rear support part 236 are fitted into the heating body case 232, the positive wire 262 or the negative wire 263 and the first lead wire 2381 or the second lead wire 2382 can effectively restrict the heat conduction rod 233 from sliding relative to the front support part 235 or the rear support part 236, and ensure that the heat conduction rod 233 can maintain good concentricity relative to the front support part 235 or the rear support part 236, thereby effectively avoiding the occurrence of electric leakage of the heating body 23 due to the contact of the heating wire 231 with the heating body case 232.

The present disclosure further provides a heating device 2, which includes a casing 24 and a heating body 23, wherein an inner cavity 25 is formed inside the casing 24, a water inlet 21 and an air outlet 22 communicated with the inner cavity 25 are arranged, and the heating body 23 is arranged in the inner cavity 25; the heating device 2 is configured to allow only a part of the heating body 23 to be covered by the water flow, and to maintain the maximum temperature of the surface of the other part of the heating body 23, which is not covered by the water flow, at 280-580 ℃, so that at least part of the water entering the heating device from the water inlet 21 is discharged from the air outlet 22 after being heated and atomized. The functions of the respective structures are referred to the heating device 2, and are not described in detail herein.

Application scenario 1

A user turns on a switch of the cleaning apparatus provided by the present disclosure.

When the cleaning device receives the air injection command, the liquid conveying pump and the heating device 2 are started, and the water in the liquid storage tank is continuously pumped into the water inlet 21 of the heating device 2 by the liquid conveying pump.

After entering the heating device 2 through the water inlet 21, the water covers a portion of the heating body 23, the temperature of this portion of the heating body 23 being relatively low, generally lower than 100 ℃, while the maximum temperature of the surface of the other portion of the heating body 23, which is not covered by the flow of water, is maintained at 280-580 ℃ above the temperature characteristic of water, ledenveros; thus, the water is repeatedly flushed toward the other partial heating body 23 uncovered by the water flow during the boiling process, and the water is in a film boiling state on the surface of the other partial heating body 23 uncovered by the water flow because the temperature of the partial heating body 23 is higher than the ledenverous characteristic temperature of the water. In the film boiling state, the heating body 23 indirectly transfers heat to the water inside through a gas film attached to the surface. The heat conductivity coefficient of the water vapor is far smaller than that of the water, so that the boiling speed of water drops is greatly reduced, and part of water is scattered into water mist in the flushing process before boiling.

The mist flows out of the outlet 22 of the heating device 2, passes through the steam passage and is finally sprayed out of the gas spraying holes 31 of the gas spraying head, and the user can see that the cleaning device is spraying the mist normally.

Then, the user can simultaneously turn on the roller brush 4, control the heating device 2 to spray water mist from the air injection holes 31 to wash the working surface, and control the roller brush 4 to rotate to scrub the working surface.

Application scenario 2

The heating body of the present disclosure includes a heating body case 232, a heat conductive rod 233, a heating wire 231, a thermocouple detection element 26, and a support body 234. The end surface of the heat conducting rod 233 at the first end is opened with a thermocouple groove 2331, and the measuring point 261 of the thermocouple detection element 26 is positioned in the thermocouple groove 2331. The thermocouple well 2331 is provided with a support 234 for supporting the heat-conducting rod 233, and the end of the support 234 adjacent to one end of the measuring point 261 is provided with a notch 2341 in which the measuring point 261 of the thermocouple detection element 26 is located.

When the heating body housing 232 is subjected to the pipe reducing process, since the support body 234 is fitted with the thermocouple groove 2331, the support body 234 can support the position of the thermocouple groove 2331, and the heat conducting rod 233 is prevented from collapsing at the position of the thermocouple groove 2331 during the pipe reducing process. In addition, the measuring point 261 of the thermocouple detection element 26 is located in the notch 2341 of the support body, so that the support body 234 can provide good protection for the measuring point 261, damage to the measuring point 261 due to collapse of the heat conduction rod 233 is avoided, and meanwhile, the situation that the measuring point 261 is in contact with the heating wire 231 due to collapse of the heat conduction rod 233 and short circuit occurs is also avoided.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims (15)

1. A cleaning device, characterized in that it comprises a heating body (23) comprising:

a heating body housing (232);

the heat conduction rod (233), two opposite ends of the heat conduction rod (233) are respectively marked as a first end and a second end; the heat conducting rod (233) is configured to be pressed in a cavity of the heater body shell (232), and a thermocouple groove (2331) is formed in the end face, located at the first end, of the heat conducting rod (233);

a heating wire (231), the heating wire (231) being wound around the heat conducting rod (233) and configured for heating;

a thermocouple detection element (26), a measurement point (261) of the thermocouple detection element (26) being located within the thermocouple well (2331);

a support (234), the support (234) configured to mate with the thermocouple well (2331); one end of the supporting body (234) adjacent to the measuring point (261) is provided with a notch (2341), and the measuring point is positioned in the notch (2341).

2. The cleaning apparatus according to claim 1, wherein opposite sides of the supporting body (234) are provided with a first extension (2342) and a second extension (2343), the first extension (2342) and the second extension (2343) enclosing the gap (2341) and being configured to support a position corresponding to the measuring point (261) in the thermocouple well (2331).

3. The cleaning apparatus as claimed in claim 2, wherein the supporting body (234) is a sheet shape, and the thermocouple well (2331) is configured to have a shape adapted to the supporting body (234).

4. The cleaning apparatus according to claim 1, wherein said heater body housing (232) is tightly fitted to said heat conducting rod (233) after being shrunk.

5. The cleaning apparatus according to claim 4, wherein the support body (234) is configured to be the same material as the heat conductive bar (233); after the heating body shell (232) is subjected to pipe shrinking treatment, the supporting body (234) and the heat conducting rod (233) are configured to be extruded into a whole.

6. Cleaning apparatus as in claim 1, characterized in that said heating body (23) comprises a front support (235) and a rear support (236);

the front support (235) is located at a first end of the heat conducting rod (233) and is configured for supporting the first end of the heat conducting rod (233); the rear support portion (236) is located at a second end of the heat conduction rod (233) and is configured to support the second end of the heat conduction rod (233).

7. A cleaning apparatus according to claim 6, characterized in that the material of the heat conducting bar (233), the support body (234), the front support (235) and the rear support (236) is magnesium oxide.

8. The cleaning apparatus as claimed in claim 7, wherein the front support (235) and the rear support (236) have a radial dimension greater than that of the heat conduction rod (233), and a through groove (237) extending in an axial direction thereof is provided on outer walls of the front support (235) and the rear support (236).

9. The cleaning apparatus of claim 7, wherein the thermocouple detection element (26) includes a positive wire (262) and a negative wire (263);

a positive wire channel (2641) and a negative wire channel (2642) are formed in the rear supporting part (236) and the part, close to the rear supporting part (236), of the heat conducting rod (233), and the positive wire channel (2641) and the negative wire channel (2642) in the heat conducting rod (233) are communicated with the thermocouple slot (2331);

the positive electrode line (262) and the negative electrode line (263) respectively extend from the outside of the second end of the heating body (23) to the thermocouple groove (2331), and are connected to form the measurement point (261) inside the thermocouple groove (2331).

10. The cleaning apparatus according to claim 9, wherein the heat conducting rod (233) is provided with a first wire channel (2391) and a second wire channel (2392); two ends of the heating wire (231) respectively extend into the first wire channel (2391) and the second wire channel (2392) on the heat conducting rod (233);

the heating body (23) further comprises a first lead (2381) and a second lead (2382), wherein the first lead (2381) and the second lead (2382) penetrate into a first lead channel (2391) and a second lead channel (2392) of the heat conducting rod (233) from the rear supporting part (236) and extend into the front supporting part (235); the first lead (2381) and the second lead (2382) are respectively in contact fit with the parts, located on the first lead channel (2391) and the second lead channel (2392), of the heating wires (231).

11. A cleaning device as claimed in claim 10, characterized in that, in a cross section of the heating body (23), the line connecting the positive wire passage (2641) and the negative wire passage (2642) is orthogonal to the line connecting the first wire passage (2391) and the second wire passage (2392).

12. Cleaning apparatus according to claim 11, characterised in that the gaps between the heating body housing (232) and the heat conducting rod (233), front support (235) and rear support (236) are filled with magnesium oxide powder.

13. A cleaning device according to claim 1, wherein the heating wire extends from a region of the first end to a region of the second end, the thermocouple detection element (26) being configured for detecting a temperature of the heat conducting rod (233) adjacent the first end region.

14. The cleaning apparatus as claimed in claim 13, wherein a distance between a measuring point (261) of the thermocouple detection element (26) and the end surface of the first end of the heat conductive rod (233) is in a range of 5.5 to 10.5mm.

15. A heating body, characterized by comprising:

a heater housing (232);

the heat conducting rod (233), two opposite ends of the heat conducting rod (233) are respectively marked as a first end and a second end; the heat conducting rod (233) is configured to be pressed in a cavity of the heating body shell (232), and a thermocouple groove (2331) is formed in the end face, located at the first end, of the heat conducting rod (233);

a heating wire (231), the heating wire (231) being wound around the heat conducting rod (233) and configured for heating;

a thermocouple detection element (26), a measurement point (261) of the thermocouple detection element (26) being located within the thermocouple well (2331);

a support (234), the support (234) configured to mate with the thermocouple well (2331); the end of the support body (234) close to one end of the measuring point (261) is provided with a notch (2341), and the measuring point is located in the notch (2341).

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