CN213880316U

CN213880316U - Defogging device

Info

Publication number: CN213880316U
Application number: CN202022688140.6U
Authority: CN
Inventors: 李�浩; 牛永杰; 梁波
Original assignee: Suzhou Beikang Intelligent Manufacturing Co ltd
Current assignee: Suzhou Beikang Intelligent Manufacturing Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-08-03
Anticipated expiration: 2030-11-19

Abstract

The utility model relates to a demisting device which is used for demisting a window of a heat preservation cabin and comprises a fan; the fan is arranged in the shell, the shell comprises an air inlet, an air outlet and a guide air channel, the guide air channel is communicated with the air inlet and the air outlet, and the area of one end, close to the air inlet, of the guide air channel is larger than that of one end, close to the air outlet, of the guide air channel; the demisting air duct is communicated with the air outlet and is flat; and the auxiliary air channel is arranged on the side plate of the guide air channel and is communicated with the guide air channel, and the area of one end face of the auxiliary air channel, which is close to the guide air channel, is larger than the area of one end face of the auxiliary air channel, which is far away from the guide air channel. The utility model provides a defogging device adopts the mode that defogging wind channel and supplementary wind channel combined together, makes during the air current reposition of redundant personnel to different air-out wind channels that assemble through the water conservancy diversion wind channel to act on the window in heat preservation cabin through a plurality of directions, thereby promote the effect to the defogging of heat preservation cabin window, simple structure, manufacturing cost is lower, convenient operation, and the safety in utilization is high.

Description

Defogging device

Technical Field

The utility model relates to a control by temperature change technical field especially relates to a defogging device.

Background

Most biological samples need to be stored in a cryogenic environment in order to ensure the viability of the sample, and a common method at present is to store the biological samples in an incubator with the cryogenic environment. In order to prevent the sample from repeatedly freezing and thawing during the accessing process and further damaging the activity of the sample, an operator is usually required to complete the accessing of the biological sample in the thermal insulation chamber. In order to facilitate the observation of the operation process by the operator, the heat-insulating cabin is often provided with a transparent window.

However, in practical use, on one hand, due to the large temperature difference between the inside and the outside of the heat preservation cabin, a large amount of water drops are condensed on a window of the heat preservation cabin after the biological sample is stored for a period of time, and the operation can be performed after the water drops need to be manually erased, so that not only is the operation of an operator inconvenient, but also the risk of polluting the sample exists; on the other hand, when the operator treats the sample in the heat preservation cabin, the hot air exhaled by the operator is sprayed on the window of the heat preservation cabin and is immediately condensed into fog, so that the operation of the operator is greatly influenced.

Therefore, a device capable of defogging the thermal insulation cabin for storing the biological sample in real time is needed, but the conventional defogging device is complex in structure, high in manufacturing cost and poor in safety performance.

SUMMERY OF THE UTILITY MODEL

Therefore, the defogging device for the thermal insulation cabin is needed to solve the problems of complex structure, high cost and poor safety performance of the existing defogging device for the thermal insulation cabin.

A demisting device is used for demisting a window of a heat preservation cabin and comprises a fan; the fan is arranged in the shell, the shell comprises an air inlet, an air outlet and a guide air channel, the guide air channel is communicated with the air inlet and the air outlet, and the area of one end, close to the air inlet, of the guide air channel is larger than that of one end, close to the air outlet, of the guide air channel; the demisting air duct is communicated with the air outlet and is in a flat plate shape; the auxiliary air channel is arranged on the guide air channel side plate and communicated with the guide air channel, and the area of one end face, close to the guide air channel, of the auxiliary air channel is larger than the area of one end face, far away from the guide air channel, of the auxiliary air channel.

Furthermore, the heating component is arranged in the diversion air duct, and air passes through the heating component after passing through the air inlet and is output through the air outlet.

Further, the axis of the auxiliary air duct is perpendicular to the plane of the demisting air duct.

Further, the outlets of the demisting air duct and the auxiliary air duct are flat.

Furthermore, a fixed support is arranged on the demisting air duct.

Furthermore, a connecting frame is arranged on the side plate of the diversion air duct, and the auxiliary air duct is connected with the connecting frame.

Further, the auxiliary air duct is in threaded connection with the connecting frame.

Further, the heating assembly is made of MCH ceramic heating plates, PTC ceramic heating plates or electric heating plates.

Further, the heating device also comprises a temperature control system, wherein the temperature control system is used for controlling the temperature of the heating assembly.

Further, still include filter equipment, filter equipment sets up air intake department.

The demisting device is used for demisting a window of a biological sample storage and heat preservation cabin, the fan is arranged in the shell, the air inlet and the air outlet of the shell are connected through the guide air channel, the inlet area of the guide air channel is larger than the outlet area of the guide air channel, so that air is gathered near the outlet of the guide air channel, and the output speed of the air is increased; the guide air duct is respectively connected with the demisting air duct and the auxiliary air duct, the demisting air duct is flat, and the outlet area of the auxiliary air duct is smaller than the inlet area of the auxiliary air duct, so that the gas output through the demisting air duct and the auxiliary air duct can be output at a high speed, and the uniform effect is realized on a window of the insulation cabin. The utility model provides a defogging device adopts the mode that defogging wind channel and supplementary wind channel combined together, makes the air current that assembles through the water conservancy diversion wind channel shunt to different air outlet wind channels to act on the window in heat preservation cabin through a plurality of directions, thereby promote the effect to the defogging of heat preservation cabin window. The application provides a defogging device, simple structure, manufacturing cost is lower, convenient operation, and the air current through the reposition of redundant personnel can carry out the defogging in the equidirectional, and the effect is obvious, and the safety in utilization is high.

Drawings

FIG. 1 is a front view of a defogging device according to an embodiment of the present application;

FIG. 2 is a diagram illustrating a defogging device according to an embodiment of the present disclosure;

fig. 3 is a perspective view of a defogging device according to an embodiment of the present application.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is susceptible to similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Fig. 1 shows a front view of a defogging device according to an embodiment of the present application, fig. 2 shows a usage state diagram of the defogging device according to an embodiment of the present application, fig. 3 shows a perspective view of the defogging device according to an embodiment of the present application, and fig. 1-3 are combined to show, the defogging device provided by the present application includes a fan 1, a housing 2 and a heating component 3, an air inlet 24 and an air outlet (not identified) are arranged on the housing 2, a diversion air duct 23 is arranged between the air inlet 24 and the air outlet, air is guided from the air inlet 24 to the air outlet through the diversion air duct 23, and the flowing speed of the air is accelerated, specifically, an end surface area of the diversion air duct 23 close to the air inlet 24 is larger than an end surface area of the diversion air duct 23 close to the air outlet, so that the air is increased in pressure and increased in flowing speed when the air flows to the air outlet. In order to prevent the air from entering into the foreign objects during flowing, a filtering device 241 is disposed at the air inlet 24 to prevent the foreign objects from being sucked, and the filtering device 241 includes, but is not limited to, an air inlet grille or a filter screen. The fan 1 is arranged in the shell 2 near the air inlet 24, and air and the like are sucked in through the fan 1 and output through the air outlet.

The utility model provides a defogging device, preferably, casing 2 has the width of broad, and air intake 24 and air outlet extend at the width direction of casing 2, and water conservancy diversion wind channel 23 extends along the width direction of casing 2 equally, and the air inlet and the gas outlet of water conservancy diversion wind channel 23 combine with air intake 24 and air outlet to the air current that makes through defogging device output is rectangular form on the cross section, is convenient for act on the heat preservation cabin window that has panel structure. In addition, can set up a plurality of fans 1 on the casing 2 that has the broad width, be convenient for promote air current transport's power, and then promote the defogging effect. The shell 2 is provided with a guide air duct 23, and the area of one end of the guide air duct 23 close to the air inlet 24 is larger than the area of one end of the guide air duct 23 close to the air outlet, so that air sucked by the fan 1 can be gathered and output from the air outlet. The heating component 3 is arranged at the position, close to the air inlet 24, of the diversion air duct 23, air introduced by the fan 1 can be heated by the heating component 3 and then conveyed to the air outlet, and hot air acts on the window to produce a good defogging effect.

The application provides a defogging device, its theory of operation is, introduces the cold air into defogging device through the fan, utilizes heating element wherein to heat the cold air, and later the air water conservancy diversion after will heating reaches a plurality of air outlets department to make the hot gas flow act on the heat preservation cabin window of the biological sample of different angles from a plurality of directions. The heated airflow has better defogging effect, so that the fog on the window can be quickly eliminated after the window is heated. The application provides a defogging device, including defogging wind channel 21 and supplementary wind channel 22, defogging wind channel 21 and air outlet are connected, and supplementary wind channel 22 is connected on the curb plate in water conservancy diversion wind channel 23, will shunt through the air current that water conservancy diversion wind channel 23 is accelerated through defogging wind channel 23 and supplementary wind channel 22 to act on the not equidirectional, further optimized product property ability. The utility model provides a defogging wind channel 21 is flat, its air inlet communicates with the gas outlet in water conservancy diversion wind channel 23, supplementary wind channel 22 sets up on the curb plate in water conservancy diversion wind channel 23 and communicates with the inner chamber in water conservancy diversion wind channel 23, preferably, defogging wind channel 21 sets up with supplementary wind channel 22 one-to-one, and the axis direction in supplementary wind channel 22 is perpendicular with defogging wind channel 21 place plane, thereby the air current of two directions of messenger's output is the vertical direction, finally be used in the window of equidirectional not.

Further, casing 2 connects defogging wind channel 21 and supplementary wind channel 22, and defogging wind channel 21 and the one end of supplementary wind channel 22 intersect at water conservancy diversion wind channel 23 department, specifically speaking, the export of water conservancy diversion wind channel 23 is linked together with defogging wind channel 21, and supplementary wind channel 22 is connected on the curb plate of water conservancy diversion wind channel 23 to communicate with each other with the inner chamber of water conservancy diversion wind channel 23, make the air of gathering through water conservancy diversion wind channel 23 shunt through defogging wind channel 21 and supplementary wind channel 22 respectively, finally act on the window of equidirectional. It should be noted that, the above is only a preferred embodiment of the present application, and other types of combinations, for example, a plurality of auxiliary air ducts 22 are sequentially arranged on a side plate of the air guide duct 23, and an angle between the auxiliary air duct 22 and the defogging air duct 21 can be adjusted, so that the defogging device can be applied to various different application scenes, and the economic benefit of the product is improved.

Furthermore, in order to make the hot air flow outputted through the demisting air duct 21 and the auxiliary air duct 22 act on the window better, the outlets of the demisting air duct 21 and the auxiliary air duct 22 are flat, so that the hot air flow can be outputted in a converged state when being outputted. It should be noted that the angle between the demisting air duct 21 and the auxiliary air duct 22 can be optimally designed according to different directions of the demisting position, and preferably, the demisting air duct 21 and the auxiliary air duct 22 are vertically arranged, so that they can act on the windows perpendicular to each other on the thermal insulation cabin. In addition, the mutually perpendicular demisting air duct 21 and the auxiliary air duct 22 can be used for demisting in different structures, for example, the demisting air duct 21 acts on a window of the thermal insulation cabin, and the auxiliary air duct 22 acts on a window of an indicator plate in front of the thermal insulation cabin. Therefore, the structure is more beneficial to realizing the defogging effect of different components.

Further, for the installation of the device of conveniently removing the fog, set up fixed bolster 211 on the wind channel 21 of defogging, it is fixed with the device of removing the fog through fixed bolster 211 to can guarantee that defogging wind channel 21 can closely laminate with the heat preservation cabin window, make the hot-blast direct action of wind channel 21 output of removing the fog on the window. On the other hand, the auxiliary air duct 22 is connected to the guide air duct 23 through the connecting frame 231, and preferably, an end surface area of the auxiliary air duct 22 close to the guide air duct 23 is larger than an end surface area of the auxiliary air duct 22 far from the guide air duct 23, so that the airflow flowing through the auxiliary air duct 22 is further accelerated, and the defogging effect is further improved. In addition, the auxiliary air duct 22 is detachably connected with the guide air duct 23, a threaded opening is formed in the connecting frame 231, a threaded end 221 is formed in the air inlet of the auxiliary air duct 22, and the auxiliary air duct 22 and the guide air duct 23 are detachably connected by connecting the threaded end 221 to the threaded opening. It should be noted that the screw connection is only a preferred way of connecting the auxiliary air duct 22 and the guide air duct 23, and the application is not limited to this connection, and other types of connection, such as anchoring, clamping, etc., are allowed by the application.

Fig. 2 shows a state of use diagram of the defogging device of an embodiment of the present application, wherein, defogging device 10 is connected with the heat preservation cabin, the surface setting of heat preservation cabin window 20 is hugged closely to defogging device 10's defogging wind channel 21 export, the surface setting of heat preservation cabin window 30 is hugged closely to defogging device 10's supplementary wind channel 22 export, after the output of hot gas flow-through defogging device 10, can be used in the surface of heat preservation cabin window 20 through defogging wind channel 21, simultaneously through the surface of supplementary wind channel 22 effect at heat preservation cabin window 30, and then carry out defogging treatment to the heat preservation cabin.

Referring to fig. 1, the defogging device provided by the present application, when in use, firstly open the fan 1, introduce the air into the defogging device 10 from the outside through the fan 1, simultaneously open the heating element 23, the air is input into the guide air duct 23 after being heated, because of the special structure of the guide air duct 23, the hot air flow can be blown out by the defogging air duct 21 and the auxiliary air duct 22 after being accelerated by the guide air duct 23, and the defogging operation is performed on the surfaces of the vertical window 20 and the horizontal window 30.

It should be noted that the area of the inlet surface of the guide air duct 23 is larger than that of the outlet surface thereof, preferably, the guide air duct 23 is funnel-shaped, and the inner structure thereof is formed by an inclined side plate, that is, one end of the side plate is connected to the inlet of the guide air duct 23, the other end of the side plate is connected to the outlet of the guide air duct 23, and the side plate is inclined from the inlet of the guide air duct 23 to the outlet side thereof. The demisting air duct 21 is communicated with the outlet of the guide air duct 23, and the auxiliary air duct 22 is arranged on the side plate of the guide air duct 23 and is communicated with the cavity in the guide air duct 23, so that the hot air accelerated by the guide air duct 23 is respectively output through the demisting air duct 21 and the auxiliary air duct 22.

The diversion air duct 23 with the structure can converge air flow and accelerate the air flow, thereby better acting on the heat preservation cabin window. However, it should be noted that the present application is not limited to the above-mentioned air guide duct structure, and other types of air guide ducts can accelerate the air flow and output the air flow through a plurality of air outlet ducts are all allowed by the present application.

Because the defogging device that this application provided is close with operating personnel distance, bring the potential safety hazard for operating personnel in order to prevent the operation process, fan 1 that this application chooseed for use, preferably low pressure crossflow blower, its operating voltage is less than 24V, and operating current is less than 10 mA. In addition, the heating component 3, preferably a low-voltage heating plate, selected by the application has an operating voltage of less than 24V and an operating current of less than 10 mA. Through the security of low pressure fan and low pressure heating plate in order to improve the system, even there is the electric leakage condition, also can not cause the injury to operating personnel.

It should be noted that, the fan 1 is preferably a low-pressure fan, and in addition, the fan cooperates with the heating component to jointly realize the heating function of the air flow, but it does not mean that the defogging device provided by the present application is only used in a mode of combining the fan and the heating component, and other types of modes are allowed by the present application as long as the air can be guided and heated, for example, a fan with a built-in heating wire can realize the heating function of the air flow while guiding the air flow.

Further, the defogging device that this application provided still includes temperature control system, and temperature control system is connected with fan 1 and heating element 3 for the air current temperature of control defogging device output. Preferably, the temperature control system can control the fan 1 and the heating element 3 to be turned on or off, respectively, and can adjust the heating range of the heating element 3 by controlling the output power of the heating element 3, so that the output airflow is heated to a proper temperature by the heating element 3.

The heating assembly 3 provided by the present application is made of materials including, but not limited to, MCH ceramic heating plate, PTC ceramic heating plate or electric heating plate. MCH is an abbreviation of Metal Ceramics Heater, and means a Metal ceramic heating element, Metal tungsten or molybdenum manganese slurry is printed on a ceramic flow blank, and the ceramic heating element is formed by co-sintering ceramic and Metal under the protection of hydrogen atmosphere at 1600 ℃ after hot-pressing lamination, and has the advantages of corrosion resistance, high temperature resistance, long service life, high efficiency, energy conservation, uniform temperature, good heat conduction, high thermal compensation speed and the like. The PTC is a short word of Positive Temperature Coefficient, the PTC ceramic heating body is a thermistor, the PTC ceramic heating element is composed of a PTC ceramic heating element and an aluminum pipe, the PTC ceramic heating element has the advantages of small thermal resistance and high heat exchange efficiency, the PTC ceramic heating body is an automatic constant-Temperature and power-saving electric heater, the surface Temperature can be automatically controlled and constant, and the dry burning phenomenon can be prevented.

When the heating component 3 adopts the PTC ceramic heating sheet, the surface temperature can be automatically controlled to be constant, so that a temperature control element is not needed to be matched in the temperature control system; when the heating assembly 3 adopts an MCH ceramic heating sheet or a common electric heating sheet, a temperature control element is needed to be matched in the temperature control system in order to better control the surface temperature of the heating assembly 3, so that the temperature when the air is output is better controlled.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a defogging device for heat preservation cabin window defogging which characterized in that includes:

a fan;

the fan is arranged in the shell, the shell comprises an air inlet, an air outlet and a guide air channel, the guide air channel is communicated with the air inlet and the air outlet, and the area of one end, close to the air inlet, of the guide air channel is larger than that of one end, close to the air outlet, of the guide air channel;

the demisting air duct is communicated with the air outlet and is in a flat plate shape;

the auxiliary air channel is arranged on the guide air channel side plate and communicated with the guide air channel, and the area of one end face, close to the guide air channel, of the auxiliary air channel is larger than the area of one end face, far away from the guide air channel, of the auxiliary air channel.

2. The defogging device as recited in claim 1, further comprising a heating element disposed in said air guiding duct, wherein air passes through said heating element after passing through said air inlet, and is output through said air outlet.

3. A defogging device as recited in claim 1 wherein the axis of said secondary air channel is perpendicular to the plane of said defogging air channel.

4. A defogging device as recited in claim 3 wherein the outlets of said defogging air channel and said secondary air channel are flat.

5. The defogging device recited in claim 1 wherein a mounting bracket is disposed on said defogging air channel.

6. The defogging device as recited in claim 1, wherein a connecting frame is disposed on said side panel of the air guiding duct, and said auxiliary air duct is connected to said connecting frame.

7. The defogging device recited in claim 6 wherein said secondary air channel is threadably connected to said attachment frame.

8. A defogging device as recited in claim 2 wherein said heating assembly is comprised of a material selected from the group consisting of MCH ceramic heater sheet, PTC ceramic heater sheet and electrical heater sheet.

9. The defogging device recited in claim 2 further comprising a temperature control system for controlling the temperature of said heating assembly.

10. A defogging device as recited in any one of claims 1-9 further comprising a filter device disposed at said air intake.