CN210561327U

CN210561327U - Drying air duct and clothes treatment equipment

Info

Publication number: CN210561327U
Application number: CN201921493887.7U
Authority: CN
Inventors: 刘剑; 龙斌华; 祝蔚锋; 冯颖; 陈坦
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-05-19
Anticipated expiration: 2029-09-09

Abstract

The application provides a stoving wind channel, clothing treatment facility. This stoving wind channel includes condensation segment wind channel (1), heating segment wind channel (2) and fan (3), fan (3) set up in the hookup location department in condensation segment wind channel (1) and heating segment wind channel (2), still be provided with cleaning device in condensation segment wind channel (1), cleaning device sets up the one end that is close to fan (3) in condensation segment wind channel (1), and can clean condensation segment wind channel (1) that lie in cleaning device and keep away from fan (3) one side. According to the drying air channel, the area of the pipeline sudden expansion of the condensing section air channel can be effectively cleaned, and the fluff is prevented from being accumulated in the condensing section air channel.

Description

Drying air duct and clothes treatment equipment

Technical Field

The application relates to the technical field of laundry equipment, in particular to a drying air duct and clothes treatment equipment.

Background

In the continuous development process of the washing machine market in recent years, the consumption promotion trend of quality and life needs leads the washing machine industry to carry out continuous technical innovation and development aiming at the healthy washing and protecting needs, wherein the demand of the washing and drying integrated machine is particularly remarkable in growth.

At present, the drying modes of the air duct of the electric heating washing and drying integrated machine on the market mainly comprise three modes of cooling wet air by tap water, discharging the wet air and dehumidifying by a common refrigerating system, wherein the washing and drying integrated machine adopting the mode of cooling the wet air by tap water has the largest market share. However, the air duct flow channel of the washing and drying integrated machine adopting the mode of cooling the wet air by the tap water is longer, and the on-way resistance is larger, so that a large amount of flock and the like are accumulated at the condensing section and the fan side of the washing machine in the drying process, and the drying efficiency is reduced; after the flocks are accumulated, a large amount of bacteria are easy to breed in a damp and hot environment, and further secondary pollution is caused; meanwhile, part of the flock can flow through the condensing section air channel to enter a fan area and an electric heating area, the flock in the centrifugal fan area can be attached to the fan to cause the problems of fan efficiency reduction and noise increase, and the electric heating area is easy to form peculiar smell and the like due to the high-temperature effect of the electric heater.

Under the action of air flow, the flocks are mainly attached to the peripheral wall surface of the air duct of the condensation section, particularly to a region with suddenly reduced air speed, namely a pipeline sudden expansion region, however, no scheme for cleaning the region exists at present.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem that this application will be solved lies in providing a stoving wind channel, clothing treatment facility, can expand the region to carry out effective cleanness to the pipeline in condensation segment wind channel suddenly, avoids the dander to pile up in the condensation segment wind channel.

In order to solve the problem, the application provides a stoving wind channel, including condensation segment wind channel, heating segment wind channel and fan, the fan setting still is provided with cleaning device in the condensation segment wind channel at the hookup location department in condensation segment wind channel and heating segment wind channel, and cleaning device sets up the one end that is close to the fan in the condensation segment wind channel to can keep away from the condensation segment wind channel of fan one side to being located cleaning device and clean.

Preferably, the cleaning device comprises a spray pipe, the spray pipe is arranged in the air duct of the condensation section, the spray pipe comprises a pipe body and a spray hole, and the spray hole is located on one side, far away from the fan, of the pipe body.

Preferably, the pipe body is provided with a water inlet, the plurality of spray holes are communicated with the water inlet through an inner cavity of the pipe body, and the plurality of spray holes are arranged at intervals in the length direction and the width direction of the pipe body.

Preferably, the tube body is a circular tube, the spray holes are radial holes, the spray holes are uniformly distributed along the circumferential direction and the axial direction of the tube body, and the spray holes are located in the 90-150-degree area range of the tube body in the circumferential direction.

Preferably, the bottom of the pipe body comprises two inclined plates forming a V shape, the two inclined plates are respectively provided with spray holes, the spray holes are perpendicular to the plate surface of the inclined plate where the spray holes are located, and the included angle between the two inclined plates is 60-150 degrees.

Preferably, the end of the pipe body is provided with a connecting plate, the connecting plate is provided with a connecting hole, and the pipe body is fixedly connected to the air duct wall of the condensation section air duct through the connecting plate.

Preferably, the peripheral wall of body is provided with the mount, is provided with the vent on the mount, and the body passes through the fixed setting of mount and in condensation section wind channel.

Preferably, the ventilation openings are positioned on two sides of the tube body, and the airflow is guided by the tube body to enter the fan from the ventilation openings on the two sides.

Preferably, the drying air duct further comprises an air outlet section air duct, the air outlet section air duct is arranged at an air outlet of the heating section air duct, and the air outlet section air duct is provided with a temperature sensor and an air speed sensor.

Preferably, the temperature sensor and the air speed sensor are located at the same height, the cross section of the air outlet section air duct is rectangular, in a horizontal cross section, the length of a long side of the air outlet section air duct is L, the length of a short side of the air outlet section air duct is H0, the depth of the temperature sensor and the air speed sensor inserted into the air outlet section air duct is H0, the distance between the temperature sensor and the first short side is L1, and the distance between the air speed sensor and the first short side is L2, wherein L1 is 0.2L to 0.4L, L2 is 0.6L to 0.8L, and H0 is 0.45H to 0.55H.

According to another aspect of the present application, there is provided a laundry treating apparatus including a drying duct as described above.

The application provides a stoving wind channel, including condensation segment wind channel, heating segment wind channel and fan, the fan setting still is provided with cleaning device in the condensation segment wind channel at the hookup location department in condensation segment wind channel and heating segment wind channel, and cleaning device sets up the one end that is close to the fan in the condensation segment wind channel to can clean the condensation segment wind channel that is located cleaning device and keeps away from fan one side. The utility model provides a stoving wind channel, cleaning device sets up the one end that is close to the fan in the condensation segment wind channel, make the more serious condensation segment wind channel's of the circumstances that the hair chips adhere to pipeline suddenly expand the region and also can be located cleaning device's clean within range, consequently when carrying out the cleanness in condensation segment wind channel, can guarantee that cleaning device can fully clean the serious region of the circumstances that adheres to the hair chips, can solve the accumulational problem of hair chips in the condensation segment wind channel from the source, avoid heat exchange efficiency's reduction, the possibility of secondary pollution among the clothing cleaning process has been reduced, the stability of stoving function has been ensured, washing machine's intelligent design has been improved, user's comfortable experience is strengthened.

Drawings

Fig. 1 is a schematic structural diagram of a drying duct in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a condensing section air duct of a drying air duct according to an embodiment of the present application;

fig. 3 is a schematic perspective view of a cleaning device of a drying duct according to an embodiment of the present application;

fig. 4 is a schematic partial sectional structural view of a cleaning device of a drying duct according to an embodiment of the present application;

FIG. 5 is a diagram of a sensor arrangement structure of a drying duct according to an embodiment of the present application;

fig. 6 is a flowchart of a cleaning method for a drying duct according to an embodiment of the present application.

The reference numerals are represented as:

1. a condensing section air duct; 2. a heating section air duct; 3. a fan; 4. a pipe body; 5. spraying a hole; 6. a water inlet; 7. a connecting plate; 8. connecting holes; 9. a fixed mount; 10. a vent; 11. an air outlet section air duct; 12. a temperature sensor; 13. a wind speed sensor; 14. a heater; 15. a condensate pipe; 16. an air tube; 17. a temperature limiter.

Detailed Description

Referring to fig. 1 to 5 in combination, according to an embodiment of the present application, the drying air duct includes a condensation section air duct 1, a heating section air duct 2 and a fan 3, the fan 3 is disposed at a connection position of the condensation section air duct 1 and the heating section air duct 2, a cleaning device is further disposed in the condensation section air duct 1, the cleaning device is disposed at one end of the condensation section air duct 1 close to the fan 3, and the condensation section air duct 1 located on one side of the cleaning device away from the fan 3 can be cleaned.

The utility model provides a stoving wind channel, cleaning device sets up the one end that is close to fan 3 in condensation segment wind channel 1, make the more serious condensation segment wind channel 1's of the circumstances of attachment of flock pipeline suddenly expand the region and also can be located cleaning device's clean within range, consequently when carrying out condensation segment wind channel 1's cleanness, can guarantee that cleaning device can fully clean the region that the circumstances of attachment of flock is serious, can solve the accumulational problem of flock in condensation segment wind channel 1 from the source, avoid the reduction of heat exchange efficiency, the possibility of secondary pollution in the clothing cleaning process has been reduced, the stability of stoving function has been ensured, washing machine's intelligent design has been improved, user's comfortable experience is strengthened.

The cleaning device comprises a spray pipe, the spray pipe is arranged in the condensing section air duct 1, the spray pipe comprises a pipe body 4 and a spray hole 5, and the spray hole 5 is located on one side, far away from the fan 3, of the pipe body 4. In this embodiment, body 4 does not set up orifice 5 towards one side of fan 3, only sets up orifice 5 in one side of body 4 back to fan 3, so, after cleaning water enters into body 4, will follow the direction blowout of keeping away from fan 3 in orifice 5 to clean the flock in condensation segment wind channel 1, because orifice 5 is back to fan 3, consequently, can effectively avoid the rivers of orifice 5 to be sprayed on fan 3, cause harmful effects to fan 3.

Be provided with water inlet 6 on body 4, orifice 5 is a plurality ofly, and a plurality of orifices 5 communicate with water inlet 6 through the inner chamber of body 4, and a plurality of orifices 5 are arranged at interval on length and the width direction of body 4. Orifice 5 communicates with water inlet 6 through the inner chamber of body 4, can utilize body 4 to carry out the flow redistribution to guarantee that homoenergetic rivers that can get into in every orifice 5 improve clean effect. Arrange a plurality of orifices 5 along the length and the width direction interval of body 4, can increase the regional scope of water jet of body 4, improve water jet action area, increase the clean area to condensation segment wind channel 1, improve clean efficiency.

In this embodiment, the tube 4 is a circular tube, the nozzle holes 5 are radial holes, and the nozzle holes 5 are uniformly arranged along the circumferential direction and the axial direction of the tube 4, and in the circumferential direction, the nozzle holes 5 are located in the 90 ° to 150 ° region of the tube 4. The pipe body 4 is horizontally arranged, the opening of the spray hole 5 faces downwards, and a spray range with a certain angle is formed on the surface of the pipe body 4, so that the inner wall surface of the air channel of the condensation section can be washed in the largest range of the cleaning device, the washing efficiency is improved, and the cleaning effect is enhanced.

The spray holes 5 are arranged along the whole axial direction of the tube body 4, so that the whole condensation section air duct 1 can be cleaned in the circumferential direction.

In addition, when the pipe body 4 is made of a circular pipe structure, the air flow formed by the fan can be guided and divided by utilizing the arc-shaped surface of the circular pipe in the cleaning process, when the air flow reaches the position of the pipe body 4, since the tubular body 4 itself is not ventilated, the air flow needs to pass through the passage between the tubular body 4 and the wall of the air duct, in the process, after the airflow reaches the pipe body 4 from the bottom of the pipe body 4, the airflow is divided to two sides under the flow guiding action of the pipe body 4, and in the airflow dividing process, the water flow sprayed out from the spray hole 5 positioned in the center is driven to incline towards two sides, the spray holes 5 in the center can spray to the air duct walls on two sides under the driving action of the air flow, the water flow sprayed from the spray holes 5 can be effectively applied to the air duct walls, the air duct walls are effectively cleaned, and the utilization efficiency of the cleaning water flow is improved.

In one embodiment not shown in the figures, the bottom of the tube 4 comprises two inclined plates forming a V shape, the two inclined plates are respectively provided with spray holes 5, the spray holes 5 are perpendicular to the plate surface of the inclined plate where the spray holes 5 are located, and the included angle between the two inclined plates is 60-150 °. In this embodiment, the bottom of body 4 forms V font structure, can form good reposition of redundant personnel effect, can make rivers flow towards the wind channel wall, can also utilize the characteristics of V font structure self simultaneously for when rivers spout from orifice 5, just can spout the wind channel wall surface, improve the clean effect of wind channel wall.

The end of the pipe body 4 is provided with a connecting plate 7, a connecting hole 8 is arranged on the connecting plate 7, and the pipe body 4 is fixedly connected to the air duct wall of the condensing section air duct 1 through the connecting plate 7. The connecting holes 8 can be unthreaded holes or bolt holes, and can be specifically set as required, and the connecting plate 7 is fixedly connected to the air duct wall through the connecting holes 8 and the connecting bolts to complete the fixed mounting of the pipe body 4. The water inlet 6 is communicated with the pipe body 4 through a connecting plate 7. Be provided with the installing port on the air duct wall, stretch out the connecting pipe on the connecting plate 7, water inlet 6 is located this connecting pipe, and this connecting pipe is worn out from the installing port on the air duct wall, conveniently is connected with the water source, realizes the water supply to cleaning device.

The outer peripheral wall of the tube body 4 is provided with a fixing frame 9, the fixing frame 9 is provided with a vent 10, and the tube body 4 is fixedly arranged in the condensation section air duct 1 through the fixing frame 9. This mount 9 can be through the fixed setting in condensation segment wind channel 1 of the mode of joint to install fixedly body 4 from the whole axial direction of body 4, can further guarantee the fixed mounting effect of body 4 on the wind channel wall. The pipe body 4 can be separately fixedly installed through the fixing frame 9, and also can be installed through the fixing frame 9 and the connecting plate 7. The existence of the vent 10 enables the fixing frame 9 not to block the circulation channel of the airflow, and ensures that the airflow can smoothly pass through the position of the cleaning device, so that the drying air duct can also smoothly work while the cleaning device can be smoothly installed.

The ventilation openings 10 are located at two sides of the tube 4, and the air flow enters the fan 3 from the ventilation openings 10 at two sides through the diversion of the tube 4.

The drying air duct further comprises an air outlet section air duct 11, the air outlet section air duct 11 is arranged at an air outlet of the heating section air duct 2, and a temperature sensor 12 and an air speed sensor 13 are arranged on the air outlet section air duct 11. In this embodiment, set up temperature sensor 12 and air velocity transducer 13 on air-out section wind channel 11, aim at detects the wind speed and the air current temperature in air-out section wind channel 11 department, and then judges whether take place the jam problem in drying the wind channel according to this, realizes cleaning device's automatic intelligent control.

Preferably, the temperature sensor 12 and the air speed sensor 13 are located at the same height, the cross section of the air outlet duct 11 is rectangular, in a horizontal cross section, the length of the long side of the air outlet duct 11 is L, the length of the short side of the air outlet duct is H, the depth of the temperature sensor 12 and the air speed sensor 13 inserted into the air outlet duct 11 is H0, the distance between the temperature sensor 12 and the first short side is L1, and the distance between the air speed sensor 13 and the first short side is L2, where L1 is 0.2L to 0.4L, L2 is 0.6L to 0.8L, and H0 is 0.45H to 0.55H.

The installation positions of the temperature sensor 12 and the air speed sensor 13 in the air outlet section air duct 11 are limited, so that the sensing position of the sensors can be ensured to be positioned near the middle surface of an air outlet wind field, the air flow speed at the position is the maximum, the air flow temperature and the air flow speed at the position are detected, when blockage occurs, the temperature and the air flow change at the position are relatively more obvious, the sensitivity of detection on whether blockage occurs in the drying air duct or not and the accuracy of a detection result can be improved, and the control precision of cleaning of the drying air duct is ensured.

In this embodiment, a condensate pipe 15 and an air pipe 16 are further disposed on the condensation section air duct 1, a heater 14 and a temperature limiter 17 are further disposed on the heating section air duct 2, a temperature sensing bulb is further mounted on the condensation section air duct 1, an air duct air inlet is further included on the condensation section air duct 1, an air duct air outlet is further included on the air outlet section air duct 11, wherein the air duct air inlet and the air duct air outlet are connected with the washing machine and the drum through hoses, and a flow field loop of the whole washing machine is formed.

Washing machine stoving during operation, the damp and hot air through the inner tube in through condensation section wind channel 1, cool off by the spun water in condensate pipe 15 and become damp and cold air, then damp and cold air becomes dry and hot air through the effect of heating section wind channel 2's heater 14, dry and hot air is dried to the clothing in the air-out section wind channel 11 entering cylinder, in the stoving process, because the clothing, the interact between the cylinder makes there are more flock in the wind channel, the flock can be great to the performance influence in the wind channel of washing and drying all-in-one.

After the scheme of the application is adopted, the washing machine can achieve the purpose of automatically cleaning to remove the flocks by controlling the valve connected to the cleaning device through the program.

According to an embodiment of the application, the clothes treatment equipment comprises a drying air duct which is the drying air duct. The laundry treatment apparatus is, for example, a washing machine, a dryer, or a washing and drying all-in-one machine.

Referring to fig. 6 in combination, according to an embodiment of the present application, the cleaning method of the drying air duct includes: acquiring outlet air speed in an air outlet duct; comparing the acquired outlet wind speed V1 with the set wind speed U1 to acquire a comparison result; determining a cleaning strategy of the air duct 1 at the condensation section according to the comparison result; and cleaning the air duct 1 of the condensation section according to the determined cleaning strategy.

In the washing machine drying work, the fluff attached to the inner wall surface of the air duct 1 of the condensation section can cause the change of flow, and further influences the outlet air speed and temperature: if the air duct 1 of the condensation section is attached with the flocks, the air speed at the outlet is reduced, the temperature at the outlet is increased, the temperature sensor 12 and the air speed sensor 13 can reflect the air speed and the temperature in real time, and then the cleaner is controlled to wash the inner wall surface of the air duct of the condensation section. By using the mode, the dust blocking at the condensing section air duct 1 of the drying air duct can be cleaned in time, and the working performance of the drying air duct is prevented from being influenced.

The step of determining the cleaning strategy of the air duct 1 at the condensation section according to the comparison result comprises the following steps: when the V1 is more than or equal to the U1, controlling the heater 14 to work, and carrying out a normal drying program; after drying, the heater 14 is turned off, and the cleaning device is started to clean while the fan 3 is kept running; detecting whether the cleaning time reaches a set time; when the cleaning time reaches the set time, controlling the fan 3 to be closed; controlling the washing machine to stop running; and when the cleaning time does not reach the set time, continuing to perform the cleaning step.

When V1 is more than or equal to U1, it indicates that no blockage occurs in the drying air duct, or the working performance of the drying air duct is not affected because of less flock, so that the drying work can be normally executed under the condition. After the stoving, remaining flock is wet, if not in time clean it, probably there is the long-time delay to become dry, leads to the result that the flock is difficult to the clearance, consequently for preventing the remaining flock of condensation wind channel internal face, after stoving work, need utilize cleaning device to wash condensation segment wind channel 1 once more, guarantee that the internal face in condensation segment wind channel 1 does not have the flock remaining, reduce the flock clearance degree of difficulty of condensation segment wind channel 1.

The step of determining the cleaning strategy of the air duct 1 at the condensation section according to the comparison result comprises the following steps: when V1 is less than U1, starting the cleaning device for cleaning, and controlling the fan 3 to start; when one-time cleaning is finished, detecting an outlet wind speed V1 and an outlet temperature T; when the outlet wind speed V1 is less than U2 and T is more than T0, continuing to enter the cleaning step and accumulating the continuous cleaning times; when the continuous cleaning times reach the set times and the requirements of the wind speed and the temperature can not be met, the fault reporting step is carried out; wherein U1 is less than U2.

The amount of the flock in the air duct influences the air speed at the outlet, and the air speed at the outlet is gradually reduced along with the increase of the amount of the flock. U1 is the wind speed under the first blockage critical state, U2 is the blockage critical wind speed after cleaning, and the wind speed is increased after cleaning, so U1 is less than U2.

When V1 < U1 is detected, it is indicated that the air duct 1 at the condensation section is blocked by the flock, and the working performance of the drying air duct is affected, so that the drying air duct needs to be cleaned, the drying air duct needs to be controlled to enter a cleaning mode at the moment, and the self-cleaning operation is performed on the air duct 1 at the condensation section of the drying air duct by using the cleaning device. After one self-cleaning operation is completed, the drying program needs to be operated again, whether the temperature and the wind speed of the air flow in the air outlet section air duct 11 reach set values or not is detected, when the wind speed V1 at the position is larger than or equal to U2 or the temperature T is smaller than or equal to T0, the fact that the flocks in the condensing section air duct 1 are cleaned up is indicated, the next drying program can be carried out, if V1 is still detected to be larger than U1 and T is larger than T0, the situation that the flocks are blocked after cleaning up still exists is indicated, the cleaning effect cannot meet the requirement, therefore, the autonomous cleaning program needs to be entered again, and the cleaning device is continuously controlled to clean the condensing section air duct 1. If the cleaning program continuously runs for a plurality of times and cannot meet the requirement, the problem that other cleaning cannot be completed smoothly is shown, and therefore a fault needs to be reported for maintenance. The number of times of cleaning can be set as required, and in this embodiment, when the number of times of continuous cleaning is accumulated to 5 times, a fault needs to be reported. After the fault is cleared, or after the drying program is normally entered, the accumulated times need to be cleared, so that the normal and orderly operation of the cleaning device is ensured.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. The utility model provides a stoving wind channel, its characterized in that, includes condensation segment wind channel (1), heating segment wind channel (2) and fan (3), fan (3) set up condensation segment wind channel (1) with the hookup location department in heating segment wind channel (2), still be provided with cleaning device in condensation segment wind channel (1), cleaning device sets up condensation segment wind channel (1) is close to the one end of fan (3), and can be to being located cleaning device keeps away from condensation segment wind channel (1) cleans.

2. The drying air duct according to claim 1, characterized in that the cleaning device comprises a nozzle, the nozzle is arranged in the condensing section air duct (1), the nozzle comprises a tube body (4) and a nozzle hole (5), and the nozzle hole (5) is located on one side of the tube body (4) far away from the fan (3).

3. The drying air duct according to claim 2, characterized in that the tube (4) is provided with a water inlet (6), the plurality of spray holes (5) are provided, the plurality of spray holes (5) are communicated with the water inlet (6) through an inner cavity of the tube (4), and the plurality of spray holes (5) are arranged at intervals along the length and width directions of the tube (4).

4. The drying air duct according to claim 2, characterized in that the tubular body (4) is a circular tube, the spray holes (5) are radial holes, and the plurality of spray holes (5) are uniformly arranged along the circumferential direction and the axial direction of the tubular body (4), and in the circumferential direction, the spray holes (5) are located in a range of 90 ° to 150 ° of the tubular body (4).

5. The drying air duct according to claim 2, characterized in that the bottom of the tube (4) comprises two inclined plates forming a V shape, the two inclined plates are respectively provided with the spray holes (5), the spray holes (5) are perpendicular to the plate surfaces of the inclined plates where the spray holes (5) are located, and the included angle between the two inclined plates is 60 ° to 150 °.

6. The drying air duct according to claim 2, characterized in that a connecting plate (7) is disposed at an end of the tube (4), a connecting hole (8) is disposed on the connecting plate (7), and the tube (4) is fixedly connected to the air duct wall of the condensing section air duct (1) through the connecting plate (7).

7. The drying air duct according to claim 2, characterized in that a fixing frame (9) is disposed on the outer peripheral wall of the tube (4), a vent (10) is disposed on the fixing frame (9), and the tube (4) is fixedly disposed in the condensing section air duct (1) through the fixing frame (9).

8. The drying air duct according to claim 7, characterized in that the ventilation openings (10) are located on both sides of the tube (4), and the air flow is guided by the tube (4) to enter the fan (3) from the ventilation openings (10) on both sides.

9. The drying air duct according to any one of claims 1 to 8, further comprising an air outlet section air duct (11), wherein the air outlet section air duct (11) is disposed at an air outlet of the heating section air duct (2), and a temperature sensor (12) and an air speed sensor (13) are disposed on the air outlet section air duct (11).

10. The drying air duct according to claim 9, wherein the temperature sensor (12) and the air speed sensor (13) are located at the same height, the cross section of the air outlet duct (11) is rectangular, in a horizontal cross section, the length of the long side of the air outlet duct (11) is L, the length of the short side of the air outlet duct is H, the depth of the air outlet duct (11) into which the temperature sensor (12) and the air speed sensor (13) are inserted is H0, the distance between the temperature sensor (12) and the first short side is L1, the distance between the air speed sensor (13) and the first short side is L2, where L1 is 0.2L to 0.4L, L2 is 0.6L to 0.8L, and H0 is 0.45H to 0.55H.

11. A laundry treatment apparatus comprising a drying tunnel, characterized in that the drying tunnel is a drying tunnel according to any one of claims 1 to 10.