Detection head and air treatment device

Abstract

The application discloses a detection head and an air treatment device. The detection head comprises a mounting cover, a PCB and a plurality of sensors. The mounting cover protrudes from the base surface of the air duct and is provided with an air passing hole. The PCB is arranged in the mounting cover and is electrically connected to a control module through a signal line. The plurality of sensors are arranged on the PCB and are electrically connected to the PCB. At least one of the plurality of sensors is an air pressure sensor. The technical scheme of the application realizes the detection function of the air pressure in the air duct. Meanwhile, the PCB is electrically connected to the control module of the air treatment device through the signal line, so that the data detected by the sensors can be smoothly transmitted to the control module, and the air treatment device can make corresponding control processing according to the detection result, so that the performance of the air treatment device is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection, in particular to a detection head and an air treatment device. BACKGROUND

[0002] With the improvement of living standards, people have higher and higher demands for indoor air, and usually use air treatment devices to adjust indoor air quality.

[0003] In the related art, the air treatment device may be affected by various factors such as frost formation of the heat exchanger, dust blockage of the filter module, etc., which may affect the air pressure inside the air treatment device. However, the existing air treatment device does not have a detection structure to detect the air pressure inside the air treatment device, so it is not possible to effectively monitor the air pressure inside the air treatment device. SUMMARY

[0004] The main purpose of the present application is to provide a detection head, which aims to effectively monitor the air pressure inside the air treatment device.

[0005] To achieve the above purpose, the detection head provided by the present application comprises a mounting cover, a PCB board and a plurality of sensors; the mounting cover is protrudingly arranged on the base surface of the air duct, and the mounting cover is provided with a wind passing hole; the PCB board is arranged in the mounting cover, and the PCB board is electrically connected with the control module through a signal line; a plurality of sensors are arranged on the PCB board and electrically connected with the PCB board, and at least one of the plurality of sensors is a gas pressure sensor.

[0006] In an embodiment of the present application, the mounting cover has two opposite ends along the length direction, one end of which is mounted on the base surface of the air duct, and the other end extends towards the normal direction of the base surface of the air duct.

[0007] The mounting cover is provided with the wind passing hole on the windward side, and / or the mounting cover is provided with the wind passing hole on the leeward side.

[0008] In an embodiment of the present application, one side of the PCB board provided with the gas pressure sensor is arranged towards the wind passing hole.

[0009] In an embodiment of the present application, the base surface of the air duct is provided with a mounting hole.

[0010] The mounting cover comprises a cover portion for mounting the PCB board, a screwing portion connected with the cover portion, and a nut matched with the screwing portion, the screwing portion penetrates through the mounting hole and is fastened by the nut, and the cover portion is provided with the wind passing hole.

[0011] In an embodiment of the present application, the cover portion is in the form of a cylindrical grid structure.

[0012] The detection head further comprises a mesh cylinder arranged in the cover portion, and the mesh cylinder surrounds the outer periphery of the PCB board; wherein the mesh size of the mesh cylinder is smaller than the grid hole size of the cover portion.

[0013] In an embodiment of the present application, the side wall of the mesh cylinder is provided with a via hole for the signal line of the PCB board to pass through;

[0014] Alternatively, the threaded portion is in a cylindrical structure and is in communication with the inner cavity of the cover portion, and the signal line of the PCB board can be led out from the end of the threaded portion.

[0015] In an embodiment of the present application, the cover portion is provided with an opening at one end away from the threaded portion for the PCB board to be inserted;

[0016] The mounting cover further comprises a sealing cover, and the sealing cover is sealingly mounted in the opening.

[0017] In an embodiment of the present application, the cover portion is provided with a plurality of clamping grooves at a position close to the opening, and the clamping grooves are arranged at intervals around the circumferential side of the cover portion;

[0018] The sealing cover is in a disc structure, and a plurality of clamping protrusions are arranged at intervals around the circumferential side of the sealing cover, and one clamping protrusion is correspondingly clamped in one clamping groove.

[0019] In an embodiment of the present application, the plurality of sensors further comprise a temperature sensor and / or a humidity sensor.

[0020] In order to achieve the above-mentioned purpose, the present application further provides an air treatment device, comprising a shell, the shell is provided with an indoor air outlet, a circulating air duct and a fresh air duct which are in communication with the indoor air outlet, and the detection head described above;

[0021] The shell is provided with a first filter module at a position close to the indoor air outlet, one detection head is arranged at the indoor air outlet, and at least one of the circulating air duct and the fresh air duct is provided with the detection head;

[0022] The detection head comprises a mounting cover, a PCB board and a plurality of sensors; the mounting cover is protrudingly arranged on the base surface of the air duct, and the mounting cover is provided with an air passing hole; the PCB board is arranged in the mounting cover, and the PCB board is electrically connected with the control module through a signal line; the plurality of sensors are arranged on the PCB board and are electrically connected with the PCB board, and at least one of the plurality of sensors is a barometric pressure sensor.

[0023] In an embodiment of the present application, the air treatment device further comprises an exhaust air duct and a total heat exchanger, and the fresh air duct and the exhaust air duct cross and pass through the total heat exchanger;

[0024] The detection head is arranged on the fresh air duct and the exhaust air duct on the inlet side and the outlet side of the total heat exchanger.

[0025] And / or, the detection head is arranged on the fresh air duct and the exhaust air duct on the inlet side and the outlet side of the total heat exchanger.

[0026] In an embodiment of the present application, on one side of the total heat exchanger, the inlet air cavity of the fresh air duct is arranged above the outlet air cavity of the exhaust air duct and is separated by a first partition plate.

[0027] The mounting cover of the detection head in the fresh air duct is arranged to extend upward from the first partition plate, and the mounting cover of the detection head in the exhaust air duct is arranged to extend downward from the first partition plate.

[0028] In an embodiment of the present application, on the other side of the total heat exchanger, the outlet air cavity of the fresh air duct is arranged below the inlet air cavity of the exhaust air duct and is separated by a second partition plate.

[0029] The mounting cover of the detection head in the fresh air duct is arranged to extend downward from the second partition plate, and the mounting cover of the detection head in the exhaust air duct is arranged to extend upward from the second partition plate.

[0030] In an embodiment of the present application, the shell is provided with a fresh air inlet communicating with the fresh air duct, and a second filter module is arranged near the fresh air inlet, and the detection head is arranged at the fresh air inlet.

[0031] In the technical scheme of the present application, the detection head is arranged in the air treatment device, the detection head includes a mounting cover protruding from the air duct base surface, a PCB board arranged in the mounting cover, and a plurality of sensors arranged on the PCB board, at least one of the plurality of sensors is a gas pressure sensor, the mounting cover is provided with an air passing hole, so that the airflow in the air duct can smoothly enter the mounting cover and contact the plurality of sensors on the PCB board, to realize the detection function of the air pressure in the air duct. At the same time, the PCB board is electrically connected to the control module of the air treatment device through a signal line, so that the data detected by the sensor can be smoothly transmitted to the control module, and then the air treatment device can make corresponding control processing according to the detection result, so that the performance of the air treatment device is better. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings from the structures shown in the drawings without creating any creative labor.

[0033] Figure 1 Structure diagram of a detection head according to an embodiment of the present application;

[0034] Figure 2 Structure diagram of a detection head according to another embodiment of the present application;

[0035] Figure 3 Exploded diagram of a detection head according to an embodiment of the present application;

[0036] Figure 4 Exploded diagram of a detection head according to another embodiment of the present application;

[0037] Figure 5 Structure diagram of an air treatment device according to an embodiment of the present application;

[0038] Figure 6 Structure diagram of an air treatment device according to an embodiment of the present application;

[0039] Figure 7 Sectional view of A-A in Fig. 1; Figure 6

[0040] Sectional view of B-B in Fig. 1; Figure 8 Figure 6 Sectional view of C-C in Fig. 1;

[0041] Figure 9 Figure 6 Sectional view of D-D in Fig. 1.

[0042] Figure 10 Figure 6

[0043] Brief Description of the Drawings:

[0044]

[0045]

[0046] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative work fall within the protection scope of the present application.

[0048] ​​​​It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, motion condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0049] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0050] The present application provides a detection head 1000 applied to an air treatment device 2000, such as being installed in an air duct or at an air outlet, which can detect the air pressure at different positions inside the air treatment device to obtain the air pressure condition at the air duct or the air outlet inside the air treatment device, so as to monitor the working condition of the internal components of the air treatment device according to different air pressure conditions, such as whether the filter module is full of dust according to the air pressure conditions on both sides of the filter module, whether the heat exchanger is frozen to cause ice blockage according to the air pressure conditions on both sides of the heat exchanger, and the pressure loss condition of the air pipe according to the air pressure condition between the front end of the air supply pipe and the end of the air supply pipe, etc. so that the air treatment device can make corresponding control processing according to the working condition to ensure the performance of the air treatment device. It can be understood that the specific installation position of the detection head 1000 proposed by the present application can be determined according to the actual situation, which is not limited here. The following will be described by taking the detection head 1000 installed in the air duct as an example.

[0051] In the embodiments of the present application, as shown in the drawings, the detection head 1000 comprises a mounting cover 100, a PCB board 200 and a plurality of sensors 300. Figures 1 to 4

[0052] The mounting cover 100 protrudes from the base surface of the air duct, and the mounting cover 100 is provided with an air passing hole 101; the PCB board 200 is arranged in the mounting cover 100, and the PCB board 200 is electrically connected with a control module through a signal line 210; the plurality of sensors 300 are arranged on the PCB board 200 and electrically connected with the PCB board 200, and at least one of the plurality of sensors 300 is an air pressure sensor.

[0053] ​The installation cover 100 plays a role of installing and fixing the PCB board 200, a plurality of sensors 300 are installed on the PCB board 200, and the purpose of installing the plurality of sensors 300 in the air duct is achieved by installing the installation cover 100 on the base surface of the air duct. At the same time, the air passing hole 101 is arranged on the installation cover 100, so that the airflow in the air duct can contact the sensor 300 through the air passing hole 101, thereby realizing the air pressure detection function of the airflow in the air duct. Since the installation cover 100 is protrudingly arranged on the base surface of the air duct, the installation cover 100 extends towards the middle of the air duct relative to the base surface of the air duct, so that the airflow flowing through the installation cover 100 is not affected by the base surface of the air duct, thereby achieving the effect of improving the detection accuracy.

[0054] It can be understood that the shape and structure of the installation cover 100 can be determined according to actual conditions, such as a square cover, a cylindrical cover, a strip-shaped cover or other special-shaped structures, as long as the PCB board 200 can be accommodated and installed on the base surface of the air duct. The air passing hole 101 on the installation cover 100 can be arranged on the top, middle or lower part of the installation cover 100, as long as it can communicate the inner cavity of the installation cover 100 with the cavity of the air duct, so that the air pressure inside the installation cover 100 is consistent with the air pressure in the air duct. Alternatively, the number of air passing holes 101 can be one or more, and the specific number is not limited.

[0055] In actual application process, the installation mode of the installation cover 100 and the base surface of the air duct can be buckle fixing, screw fixing, adhesive fixing or magnetic connection fixing. The position of the installation cover 100 installed on the base surface of the air duct can be determined according to the actual internal structure layout of the air treatment device, such as being arranged on the lower base surface, side base surface or upper base surface of the air duct. Alternatively, in order to ensure the reliability of the structure of the installation cover 100, the installation cover 100 can be made of high-strength steel copper material.

[0056] The PCB board 200 plays a role of installing a plurality of sensors 300, and at the same time can transmit the data detected by the plurality of sensors 300 to the control module of the air treatment device through the signal line 210, so that the air treatment device can monitor the air pressure in the air duct in real time, and can make corresponding control processing according to the monitored result. Alternatively, the plurality of sensors 300 can include air pressure sensors, temperature sensors or humidity sensors to monitor the pressure, temperature or humidity of the airflow in the air duct. In actual application process, the plurality of sensors 300 can be a plurality of separate sensor structures respectively installed on the PCB board 200, or a plurality of sensor chips integrated into a whole structure installed on the PCB board 200.

[0057] The PCB 200 is installed in the mounting cover 100, and the extension shape of the PCB 200 can be consistent with the extension shape of the mounting cover 100. For example, when the mounting cover 100 extends in a long strip shape, the PCB 200 can be provided in a long strip structure consistent with the extension direction of the mounting cover 100, so that the structure is more compact, the occupied space of the mounting cover 100 in the air duct is reduced, and the air resistance is further reduced. Alternatively, when the mounting cover 100 extends outward from the base surface of the air duct, the PCB 200 can be provided in a long strip structure extending outward from the base surface of the air duct, and the plurality of sensors 300 are installed on the plate surface of the PCB 200, so as to ensure the contact area of the sensors 300 with the airflow, thereby ensuring the detection effect.

[0058] It can be understood that, in actual application, the installation position of the detection head 1000 in the air treatment device 2000 can be different according to the monitoring requirements. For example, when it is necessary to monitor the dust blocking condition of the filter module in the air treatment device 2000, the detection head 1000 can be arranged in the upstream air duct and the downstream air duct of the filter module, the wind pressure on both sides of the filter module is detected, and the wind pressure difference or the wind pressure difference change rate and the like on both sides is used to monitor the dust blocking condition of the filter module, so that the dust-filled filter module can be replaced or cleaned in time, the air resistance is reduced, and the loss of air volume is reduced. For example, in cold winter, the condenser can be frosted during the heating process of the air treatment device 2000, which reduces the heat exchange efficiency and increases the air resistance. Based on this, the detection head 1000 can be arranged on both sides of the condenser, the wind pressure difference or the wind pressure difference change rate and the like on both sides is used to monitor the frosting condition on both sides of the condenser, so that the defrosting operation can be performed in time to eliminate the wind loss caused by ice blocking, and the heat exchange efficiency can be improved. When the air duct path is long or the air duct structure is bent, the detection head 1000 can also be arranged at the front end and the rear end of the air duct to detect the wind pressure at both ends, and the wind pressure difference or the pressure difference change rate and the like at both ends is used to monitor the pressure loss condition in the air duct, so that the air duct structure can be maintained (such as cleaning) in time to reduce the wind loss and improve the performance of the air treatment device.

[0059] In the technical scheme, the detection head 1000 is arranged in the air treatment device 2000, the detection head 1000 comprises a mounting cover 100 protruding on a base surface of an air duct, a PCB 200 arranged in the mounting cover 100, and a plurality of sensors 300 arranged on the PCB 200, at least one of the plurality of sensors 300 is an air pressure sensor, the mounting cover 100 is provided with an air passing hole 101, so that the airflow in the air duct can smoothly enter the mounting cover 100 and contact the plurality of sensors 300 on the PCB 200, and the detection function of the air pressure in the air duct is realized. Meanwhile, the PCB 200 is electrically connected to a control module of the air treatment device 2000 through a signal line 210, so that the data detected by the sensor 300 can be smoothly transmitted to the control module, and then the air treatment device 2000 can make corresponding control processing according to the detection result, so that the performance of the air treatment device is better.

[0060] In order to further improve the accuracy of the detection result, with reference to Figures 1 to 4 In an embodiment of the present application, the mounting cover 100 has two opposite ends along the length direction, one end of which is mounted on the base surface of the air duct, and the other end extends towards the normal direction of the base surface of the air duct.

[0061] It can be understood that, in actual application, the mounting cover 100 can be protruded on the base surface of the air duct in a transverse direction, a longitudinal direction or an oblique direction. In this embodiment, the mounting cover 100 has two opposite ends along the length direction, one end of which is mounted on the base surface of the air duct, and the other end extends towards the normal direction of the base surface of the air duct, so that the extension direction of the mounting cover 100 is perpendicular to the base surface of the air duct, that is, the extension direction of the mounting cover 100 is perpendicular to the direction of the airflow, which improves the mounting stability of the mounting cover 100 and the base surface of the air duct, and increases the contact area between the mounting cover 100 and the airflow, so that the airflow can fully contact the sensor 300, and the detection accuracy is further improved.

[0062] In an embodiment, the mounting cover 100 is provided with the air passing hole 101 on the windward side. In this embodiment, the air passing hole 101 is arranged on the windward side, so that the airflow can directly blow from the air passing hole 101 to the PCB 200, and the airflow resistance before blowing to the sensor 300 is eliminated, and the detection error is reduced.

[0063] In an embodiment, the mounting cover 100 is provided with the air passing hole 101 on the leeward side. In this embodiment, the air passing hole 101 is arranged on the leeward side, so that the airflow impact on the PCB 200 and the sensor 300 is reduced, and the wind pressure in the mounting cover 100 is maintained in a stable state, and at this time, the sensor 300 can better detect the static pressure in the air duct.

[0064] Further, with reference to Figures 1 to 4The side of the PCB 200 where the air pressure sensor is arranged is arranged towards the air passing hole 101.

[0065] It can be understood that in the foregoing embodiment, the air passing hole 101 can be arranged on the windward side and / or the leeward side of the mounting cover 100, and the side of the PCB 200 where the air pressure sensor is arranged is arranged towards the air passing hole 101, so that the air pressure detection point of the PCB 200 is arranged on the windward side and / or the leeward side. When the air pressure detection point is arranged on the windward side, the airflow can directly blow to the air pressure detection point, so that the pressure condition of the airflow can be detected in time, and the detection efficiency is improved. When the air pressure detection point is arranged on the leeward side, the airflow does not directly blow to the air pressure detection point, and at this time, the airflow around the air pressure detection point is stable, and the static pressure condition can be better detected. Of course, the air pressure sensor can also be arranged on the windward side and the leeward side of the PCB 200, so as to simultaneously detect the flow impact of the gas and the static pressure condition in the air duct.

[0066] In an embodiment of the present application, referring to Figures 1 to 4 The base surface of the air duct is provided with a mounting hole 540a; the mounting cover 100 includes a cover arrangement part 110 for arranging the PCB 200, a threaded part 120 connected to the cover arrangement part 110, and a nut 130 matched with the threaded part 120, the threaded part 120 is inserted through the mounting hole 540a and fastened by the nut 130, and the cover arrangement part 110 is provided with the air passing hole 101.

[0067] In the embodiment, the mounting cover 100 is mounted on the base surface of the air duct by a threaded fastening mode. Specifically, the mounting cover 100 includes a cover arrangement part 110 and a threaded part 120 arranged at one end of the cover arrangement part 110, the cover arrangement part 110 is used to accommodate the PCB 200, the threaded part 120 is inserted into the mounting hole 540a of the base surface of the air duct, and the threaded part 120 is matched with the nut 130 to realize the reliable mounting of the mounting cover 100 and the base surface of the air duct.

[0068] It can be understood that the threaded part 120 and the cover arrangement part 110 can be an integral structure or a split structure. The threaded part 120 and the cover arrangement part 110 form a stepped structure, the outer diameter size of the cover arrangement part 110 is greater than the hole diameter size of the mounting hole 540a, the outer diameter size of the nut 130 is greater than the hole diameter size of the mounting hole 540a, and the nut 130 and the cover arrangement part 110 are clamped and fixed on both sides of the base surface of the air duct.

[0069] In an embodiment of the present application, referring to Figures 1 to 4 The cover arrangement part 110 is in a cylindrical grid structure.

[0070] In the embodiment, the cover setting part 110 is provided in a cylindrical lattice structure, so that the airflow in the air duct can enter the inside of the cover setting part 110 through the plurality of lattice holes in the periphery at the same time. The airflow entering the inside of the cover setting part 110 is more uniform by the combing effect of the lattice, thereby ensuring the stability of the airflow in contact with the sensor 300, and making the detection result more accurate. In addition, the lattice structure can also play a protective and dustproof role for the PCB board 200 inside the cover setting part 110. It can be understood that the lattice hole at this time is the wind passing hole 101 in the foregoing embodiment.

[0071] Further, referring to Figures 1 to 4 , the detection head 1000 further comprises a lattice cylinder 400 arranged in the cover setting part 110, the lattice cylinder 400 surrounds the outer periphery of the PCB board 200; wherein the mesh hole 401 of the lattice cylinder 400 is smaller in size than the lattice hole of the cover setting part 110.

[0072] In the embodiment, the lattice cylinder 400 is arranged between the cover setting part 110 and the PCB board 200, and the size of the mesh hole of the lattice cylinder 400 is smaller than the size of the lattice hole, thereby playing a further protection function, avoiding the contact of fingers or fine structures to the dot part of the PCB board 200, and also being able to filter dust, hair and the like.

[0073] In addition, the lattice cylinder 400 can further comb the airflow into small flow, filter the fluctuation of external airflow, reduce the influence of external flow on the sensor 300, and improve the stability of detection. Furthermore, the porous design of the lattice cylinder 400 increases the number of passages from the outside to the detection point, so as to ensure the normal detection of the sensor 300.

[0074] In actual application, the lattice cylinder 400 can be a relatively soft plastic part, and the plastic part has poor heat conduction performance, can absorb dust and impurities, and can avoid condensation.

[0075] In an embodiment, the lattice frame of the lattice cylinder 400 and the lattice frame of the cover setting part 110 are arranged in a staggered manner, thereby further enhancing the ability to block dust and impurities, and further combing the airflow, so that the airflow can enter the inside of the lattice cylinder 400 uniformly, and the stability of detection of the sensor 300 is enhanced.

[0076] In actual application, referring to Figures 1 to 4 , the mode in which the signal line 210 of the PCB board 200 is drawn out from the mounting cover 100 can be determined according to the actual installation position of the detection head 1000.

[0077] In an embodiment, the screw connection part 120 is in a cylindrical structure and communicates with the inner cavity of the cover setting part 110, and the signal line 210 of the PCB board 200 can be drawn out from the end of the screw connection part 120.

[0078] In this embodiment, as Figure 1 The screw connection 120 is connected to the cover portion 110, allowing the signal line 210 of the PCB board 200 to extend axially directly from the end of the screw connection 120. This ensures that the routing direction of the signal line 210 is consistent with the extension direction of the cover portion 110 and the screw connection 120, guaranteeing the stability of the line. No additional routing structure is required, making full use of the structural space and resulting in a more compact structural layout.

[0079] In one embodiment, such as Figure 2 The side wall of the mesh cylinder 400 is provided with a through hole 402 for the signal line 210 of the PCB board 200 to pass through. In this embodiment, the signal line 210 of the PCB board 200 extends from the side of the mounting cover 100. This method is applicable to scenarios where the screw part 120 cannot exit. When the mounting cover 100 is set on the lower surface of the air duct base, the mounting cover 100 extends vertically downward from the air duct base. In this way, the screw part 120 of the mounting cover 100 passes through the mounting hole 540a from bottom to top, and the nut 130 is set above the air duct base. This avoids the situation where condensate above the air duct base enters the cover part 110 along the signal line 210 from the end of the screw part 120 and contacts the PCB board 200, causing a short circuit. Based on this, the detection head 1000 can also be provided with a plug at the end of the screw part 120 to seal the end of the screw part 120 and prevent water from entering. In practical applications, the plug can be omitted, and the threaded part 120 can be directly set as a solid screw structure.

[0080] To facilitate the installation of the PCB board 200, in one embodiment of the present invention, referring to... Figures 1 to 4 The cover portion 110 has an opening 111 at one end opposite to the screw portion 120 for inserting the PCB board 200;

[0081] The mounting cover 100 also includes a sealing cover 140, which is sealed and installed in the opening 111.

[0082] In this embodiment, by providing an opening 111 at the end of the cover portion 110, the PCB board 200 can be smoothly inserted into the cover portion 110 through the opening 111. After the PCB board 200 is inserted into the cover portion 100, the opening 111 is sealed by the sealing cover 140 to achieve the installation stability of the PCB board 200.

[0083] In order to facilitate the PCB 200 from the cover part 110, in an embodiment, the signal line 210 from the end of the PCB 200, the signal line 210 and the PCB 200 connection forms a bending part, the bending part is provided at the opening 111 of the cover part 110. It can be understood that the bending part forms a hand-held structure, which is convenient for the staff to take and place.

[0084] Optionally, the cover part 110 is provided with a plurality of clamping grooves 112 near the opening 111, and the plurality of clamping grooves 112 are arranged at intervals around the circumferential side of the cover part 110.

[0085] The sealing cover 140 is in a disc structure, and a plurality of clamping protrusions are arranged at intervals on the circumferential side of the sealing cover 140, and one clamping protrusion is correspondingly clamped in one clamping groove 112.

[0086] In the embodiment, the clamping protrusion and the clamping groove 112 are clamped to realize the stable installation of the sealing cover 140 and the cover part 110, so as to seal the opening 111 and achieve the purpose of protecting the PCB 200 and the sensor 300.

[0087] The application also provides an air treatment device 2000, referring to Figures 5 to 10 The air treatment device 2000 comprises a shell 500 and a detection head 1000, and the specific structure of the detection head 1000 is referred to the above-mentioned embodiments. Since the air treatment device 2000 adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0088] Among them, the shell 500 is provided with a circulating air inlet 502, an indoor air outlet 503 and a fresh air inlet 501, and the shell 500 is provided with a circulating air duct 520 communicating the circulating air inlet 502 and the indoor air outlet 503 and a fresh air duct 510 communicating the fresh air inlet 501 and the indoor air outlet 503.

[0089] The shell 500 is provided with a first filter module 700 near the indoor air outlet 503, and the indoor air outlet 503 is provided with a detection head 1000, and at least one of the circulating air duct 520 and the fresh air duct 510 is provided with a detection head 1000.

[0090] It can be understood that the air flow in the circulating air duct 520 enters from the circulating air inlet 502 communicated with the room, and is blown out from the indoor air outlet 503 to the room, realizing the circulating regulation function of the indoor air flow; the air flow in the fresh air duct 510 enters from the fresh air inlet 501 communicated with the outdoor, and is blown out from the indoor air outlet 503 to the room, realizing the function of introducing outdoor fresh air into the room. The shell 500 is provided with a first filter module 700 at a position close to the indoor air outlet 503, which can filter and purify the air flow flowing to the indoor air outlet 503 from the circulating air duct 520 and / or the fresh air duct 510 before blowing into the room, thereby ensuring the quality of the indoor air supply. In order to monitor the dust blocking condition of the first filter module 700 in time, the detection head 1000 is arranged at the indoor air outlet 503, and the detection head 1000 is arranged in the circulating air duct 520 and / or the fresh air duct 510, so that the upstream position and the downstream position of the first filter module 700 are both provided with the detection head 1000 capable of detecting the air pressure. According to the air pressure difference or pressure difference change rate of the two sides of the first filter module 700, the dust blocking condition of the first filter module 700 can be obtained, so as to achieve the purpose of monitoring the dust blocking condition or the remaining use time of the first filter module 700, so that subsequent replacement or cleaning operation can be carried out in time, the air supply wind power is ensured, and the air resistance is reduced.

[0091] In actual application process, the installation position of the detection head 1000 at the indoor air outlet 503 can be determined according to actual conditions, such as being installed on the top wall, side wall or bottom wall of the indoor air outlet 503. The mounting cover 100 is protruded on one wall surface of the indoor air outlet 503, in order to ensure the reliability of detection, the mounting cover 100 extends from the wall surface of the indoor air outlet 503 to the direction perpendicular to the air flow, so that the air flow fully contacts the sensor 300 in the mounting cover 100, and better detection effect is achieved.

[0092] Optionally, in the application process of the air treatment device 2000, the air supply to the room can be directly into the room from the indoor air outlet 503, or the air supply can be delivered to different areas in the room through the connected air pipe. When the connected air pipe is used, the detection head 1000 can be arranged at the indoor air outlet 503, or the detection head 1000 can be arranged at the end of the air pipe or in the space communicated with the end of the air pipe, that is, the detection head 1000 is arranged at the first end and the end of the air pipe, the air pressure of the two ends of the air pipe is detected, and the pressure loss of the air pipe is obtained, so that subsequent cleaning and maintenance or structure improvement of the air pipe can be carried out.

[0093] In an embodiment of the present application, referring to Figures 5 to 10 , the air treatment device 2000 further comprises an exhaust air duct 530 and a total heat exchanger 600, the fresh air duct 510 and the exhaust air duct 530 cross and are arranged in the total heat exchanger 600.

[0094] The fresh air duct 510 is provided with the detection head 1000 at the inlet side and the outlet side of the total heat exchanger 600.

[0095] And / or, the exhaust air duct 530 is provided with the detection head 1000 at the inlet side and the outlet side of the total heat exchanger 600.

[0096] It can be understood that the shell 500 is also provided with the exhaust air duct 530 and the indoor exhaust air outlet 504 and the outdoor exhaust air outlet 505 communicated with the exhaust air duct 530, and the exhaust air duct 530 is heat exchange connected with the fresh air duct 510 through the total heat exchanger 600, so that the introduced fresh air can be heat exchanged with the discharged air to improve the heat energy utilization rate. Based on this, the detection head 1000 can be arranged in the fresh air duct 510 at the inlet side and the outlet side of the total heat exchanger 600 to detect the air pressure on both sides of the total heat exchanger 600 in the fresh air duct 510, so as to realize the air resistance monitoring of the total heat exchanger 600 to the fresh air. The detection head 1000 can also be arranged in the exhaust air duct 530 at the inlet side and the outlet side of the total heat exchanger 600 to detect the air pressure on both sides of the total heat exchanger 600 in the exhaust air duct 530, so as to realize the air resistance monitoring of the total heat exchanger 600 to the exhaust air.

[0097] In actual application process, in winter heating mode, outdoor cold air enters indoor environment through the total heat exchanger 600, because the outdoor temperature is low, it may cause frost or ice in the total heat exchanger 600, cause large air inlet resistance and affect heat exchange effect, based on this, the detection head 1000 in the fresh air duct 510 at the inlet side and the outlet side of the total heat exchanger 600 can detect the air pressure on both sides, and the monitoring of air pressure difference or air pressure difference change rate can realize the monitoring of frost or ice in the total heat exchanger 600, so that subsequent defrosting or ice melting control can be taken in time.

[0098] In an embodiment, in winter heating mode, when outdoor cold air passes through the total heat exchanger 600, heat exchange occurs with the airflow in the exhaust air duct 530, when the outdoor cold air temperature is low, frost or ice may also be formed in the channel of the total heat exchanger 600 for exhaust air, causing large exhaust air resistance, based on this, the detection head 1000 in the exhaust air duct 530 at the inlet side and the outlet side of the total heat exchanger 600 can detect the air pressure on both sides, and the monitoring of air pressure difference or air pressure difference change rate can realize the monitoring of frost or ice in the total heat exchanger 600, so that subsequent defrosting or ice melting control can be taken in time.

[0099] In order to make the detection effect of the detection head 1000 better, refer to Figures 5 to 10In an embodiment of the present application, on one side of the total heat exchanger 600, the air inlet cavity of the fresh air duct 510 is arranged above the air outlet cavity of the exhaust air duct 530 and is separated by the first partition plate 541.

[0100] The mounting cover 100 of the detection head 1000 in the fresh air duct 510 is arranged to extend upward from the first partition plate 541, and the mounting cover 100 of the detection head 1000 in the exhaust air duct 530 is arranged to extend downward from the first partition plate 541.

[0101] In the foregoing embodiment, the fresh air duct 510 and the exhaust air duct 530 cross and are arranged in the total heat exchanger 600. The total heat exchanger 600 can be arranged with the air inlet face located above and the air outlet face located below. At this time, the air inlet cavity of the fresh air duct 510 located on the same side of the total heat exchanger 600 is arranged above the air outlet cavity of the exhaust air duct 530 and is separated by the first partition plate 541. It can be understood that the first partition plate 541 is equivalent to the air duct lower base face of the air inlet cavity of the fresh air duct 510 and the air duct upper base face of the air outlet cavity of the exhaust air duct 530. The detection head 1000 is respectively installed on the upper and lower sides of the first partition plate 541 to realize the air pressure detection function of the air inlet cavity of the fresh air duct 510 and the air pressure detection function of the air outlet cavity of the exhaust air duct 530.

[0102] Optionally, two mounting holes 540a are arranged on the first partition plate 541 in intervals. The detection head 1000 for detecting the air inlet cavity of the fresh air duct 510 and the detection head 1000 for detecting the air outlet cavity of the exhaust air duct 530 are respectively installed in the two mounting holes 540a.

[0103] In an embodiment, the installation mode of the detection head 1000 for detecting the air inlet cavity of the fresh air duct 510 is that the screwing part 120 of the mounting cover 100 is arranged to extend downward from the first partition plate 541 through the mounting hole 540a and is fastened by the nut 130. The cover part 110 extends upward from the upper surface of the first partition plate 541 so that the PCB board 200 in the cover part 110 can extend into the position close to the middle part of the air inlet cavity of the fresh air duct 510, eliminating the influence of the structure shape of the air cavity wall surface on the airflow and achieving better detection effect. In this installation mode, the screwing part 120 is arranged to extend downward from the first partition plate 541. The signal line 210 of the PCB board 200 is led out from the lower end part of the cylindrical screwing part 120, avoiding the situation that the condensed water enters the cover part 110 from the end part of the signal line 210 or the screwing part 120 to affect the PCB board 200, and ensuring the normal use function of the PCB board 200 and the sensor 300.

[0104] In an embodiment, the installation mode of the detection head 1000 of the air outlet cavity of the exhaust air duct 530 is that the threaded part 120 of the installation cover 100 is threaded through the installation hole 540a from bottom to top and fastened by the nut 130, and the cover part 110 extends downward from the lower surface of the first partition plate 541, so that the PCB board 200 in the cover part 110 can extend into the position close to the middle part of the air inlet cavity of the exhaust air duct 530, eliminating the influence of the wall surface structure shape of the air cavity on the airflow, and achieving better detection effect. In this installation mode, the threaded part 120 extends upward from the first partition plate 541. In order to prevent the condensed water in the air inlet cavity of the fresh air duct 510 from entering from the end of the threaded part 120, the end of the threaded part 120 can be plugged, such as setting a sealing plug or setting it as a solid screw structure when forming. At this time, the signal line 210 of the PCB board 200 can be led out from the side of the cover part 110, ensuring the normal use of the PCB board 200 and the sensor 300.

[0105] Further, with reference to Figures 5 to 10 On the other side of the total heat exchanger 600, the air supply cavity of the fresh air duct 510 is arranged below the air inlet cavity of the exhaust air duct 530 and is separated by the second partition plate 542.

[0106] The installation cover 100 of the detection head 1000 in the fresh air duct 510 extends downward from the second partition plate 542, and the installation cover 100 of the detection head 1000 in the exhaust air duct 530 extends upward from the second partition plate 542.

[0107] It can be understood that the air supply cavity of the fresh air duct 510 on the same side of the total heat exchanger 600 is arranged below the air inlet cavity of the exhaust air duct 530 and is separated by the second partition plate 542. It can be understood that the second partition plate 542 corresponds to the air duct upper base surface of the air supply cavity of the fresh air duct 510 and the air duct lower base surface of the air inlet cavity of the exhaust air duct 530, and the detection head 1000 is installed on the upper and lower sides of the second partition plate 542 respectively, so as to realize the air pressure detection function of the air supply cavity of the fresh air duct 510 and the air pressure detection function of the air inlet cavity of the exhaust air duct 530.

[0108] Optionally, two installation holes 540a are arranged on the second partition plate 542, and the detection head 1000 for detecting the air supply cavity of the fresh air duct 510 and the detection head 1000 for detecting the air inlet cavity of the exhaust air duct 530 are respectively installed in the two installation holes 540a.

[0109] In an embodiment, the installation of the detection head 1000 detecting the air inlet cavity of the exhaust air duct 530 is that the threaded part 120 of the installation cover 100 is threaded through the installation hole 540a from top to bottom and fastened by the nut 130, and the cover part 110 extends upward from the upper surface of the second partition plate 542, so that the PCB board 200 in the cover part 110 can extend into the position close to the middle of the air inlet cavity of the exhaust air duct 530, eliminating the influence of the wall surface structure shape of the air cavity on the airflow, and achieving better detection effect. In this installation mode, the threaded part 120 extends downward from the second partition plate 542, and the signal line 210 of the PCB board 200 is led out from the lower end of the cylindrical threaded part 120, avoiding the situation that condensed water enters the cover part 110 from the signal line 210 or the end of the threaded part 120 to affect the PCB board 200, and ensuring the normal use function of the PCB board 200 and the sensor 300.

[0110] In an embodiment, the installation of the detection head 1000 detecting the air inlet cavity of the exhaust air duct 530 is that the threaded part 120 of the installation cover 100 is threaded through the installation hole 540a from top to bottom and fastened by the nut 130, and the cover part 110 extends upward from the upper surface of the second partition plate 542, so that the PCB board 200 in the cover part 110 can extend into the position close to the middle of the air inlet cavity of the exhaust air duct 530, eliminating the influence of the wall surface structure shape of the air cavity on the airflow, and achieving better detection effect. In this installation mode, the threaded part 120 extends downward from the second partition plate 542, and the signal line 210 of the PCB board 200 is led out from the lower end of the cylindrical threaded part 120, avoiding the situation that condensed water enters the cover part 110 from the signal line 210 or the end of the threaded part 120 to affect the PCB board 200, and ensuring the normal use function of the PCB board 200 and the sensor 300.

[0111] In an embodiment of the present application, referring to Figures 5 to 10 , the shell 500 is provided with a second filter module 800 close to the fresh air inlet 501, and the detection head 1000 is arranged at the fresh air inlet 501.

[0112] The shell 500 is provided with the second filter module 800 near the fresh air inlet 501, which can filter and purify the airflow entering the fresh air duct 510 from the outdoor to ensure the quality of the outdoor fresh air introduction. In the foregoing embodiment, the fresh air duct 510 of the total heat exchanger 600 is provided with the detection head 1000, and the upstream and downstream positions of the second filter module 800 are provided with the detection head 1000 capable of detecting the air pressure by arranging the detection head 1000 at the fresh air inlet 501. According to the air pressure difference or pressure difference change rate of the two sides of the second filter module 800, the dust blocking condition of the second filter module 800 can be obtained, so as to achieve the purpose of monitoring the dust blocking condition or the remaining use time of the second filter module 800, so that the subsequent replacement or cleaning operation can be performed in time, the fresh air resistance is reduced, and the efficiency of the fresh air introduction is ensured.

[0113] In actual application, the installation position of the detection head 1000 at the fresh air inlet 501 can be determined according to actual conditions, for example, it can be installed on the top wall, side wall or bottom wall of the fresh air inlet 501. The mounting cover 100 is protruded on one wall surface of the fresh air inlet 501, in order to ensure the reliability of detection, the mounting cover 100 extends from the wall surface of the fresh air inlet 501 to the direction perpendicular to the airflow, so that the airflow fully contacts the sensor 300 in the mounting cover 100, and better detection effect is achieved.

[0114] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields under the inventive concept of the present application, or the contents of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. An air treatment device comprising a detection head, characterised in that, The air treatment device comprises an air duct and a control module; the detection head comprises: a mounting cover protruding from a base surface of the air duct, the mounting cover being provided with an air passing hole; a PCB board provided in the mounting cover, the PCB board being electrically connected to the control module through a signal line; and a plurality of sensors provided on the PCB board and electrically connected to the PCB board, at least one of the plurality of sensors being an air pressure sensor; the mounting cover comprises a cover portion for mounting the PCB board and a grid cylinder provided in the cover portion; the cover portion is provided in a cylindrical grid structure; the grid cylinder surrounds an outer periphery of the PCB board; wherein the mesh size of the grid cylinder is smaller than the grid hole size of the cover portion; the grid cylinder is a plastic part; the air treatment device further comprises a housing, the housing being provided with an indoor air outlet, a circulating air duct and a fresh air duct in communication with the indoor air outlet, and the detection head; the housing is provided with a first filter module at a position close to the indoor air outlet, one detection head is provided at the indoor air outlet, and at least one of the circulating air duct and the fresh air duct is provided with the detection head; the air treatment device further comprises an exhaust air duct and a total heat exchanger, the fresh air duct and the exhaust air duct intersecting and being provided in the total heat exchanger; the fresh air duct is provided with one detection head at the air inlet side and the air outlet side of the total heat exchanger; and / or the exhaust air duct is provided with one detection head at the air inlet side and the air outlet side of the total heat exchanger.

2. The air treatment device of claim 1, wherein, The mounting cover has two opposite ends along the length direction, one end of which is mounted on the base surface of the air duct, and the other end extends towards the normal direction of the base surface of the air duct; the mounting cover is provided with the air passing hole on the side facing the wind, and / or the mounting cover is provided with the air passing hole on the side away from the wind.

3. The air treatment device of claim 2, wherein, The side of the PCB board provided with the air pressure sensor is provided towards the air passing hole.

4. The air treatment device of any one of claims 1 to 3, wherein, The base surface of the air duct is provided with a mounting hole; the mounting cover further comprises a threaded portion connecting the cover portion and a nut matched with the threaded portion, the threaded portion penetrating the mounting hole and being fastened by the nut, and the cover portion being provided with the air passing hole.

5. The air treatment device of claim 4, wherein, The side wall of the grid cylinder is provided with a through hole for the signal line of the PCB board to pass through; alternatively, the threaded portion is in a cylindrical structure and communicates with the inner cavity of the cover portion, and the signal line of the PCB board can be led out from the end of the threaded portion.

6. The air treatment device of claim 4, wherein, The end of the cover portion away from the threaded portion is provided with an opening for inserting the PCB board; the mounting cover further comprises a sealing cover, which is sealingly mounted on the opening.

7. The air treatment device of claim 6, wherein, The cover portion is provided with a plurality of clamping grooves at a position close to the opening, and the clamping grooves are arranged at intervals around the circumferential side of the cover portion; the sealing cover is in a disc structure, and the circumferential side of the sealing cover is provided with a plurality of clamping protrusions, one clamping protrusion being correspondingly clamped in one clamping groove.

8. The air treatment device of any one of claims 1 to 3, wherein, The plurality of sensors further comprise a temperature sensor and / or a humidity sensor.

9. The air treatment device of claim 1, wherein, On one side of the total heat exchanger, the air inlet cavity of the fresh air duct is provided above the air outlet cavity of the exhaust air duct and is separated by a first partition plate; The installation cover of the detection head in the fresh air duct is arranged upwardly from the first partition plate, and the installation cover of the detection head in the exhaust air duct is arranged downwardly from the first partition plate.

10. The air treatment device of claim 9, wherein, On the other side of the total heat exchanger, the supply air cavity of the fresh air duct is arranged below the inlet air cavity of the exhaust air duct and is separated by a second partition plate; The installation cover of the detection head in the fresh air duct is arranged downwardly from the second partition plate, and the installation cover of the detection head in the exhaust air duct is arranged upwardly from the second partition plate.

11. The air treatment device of claim 1, wherein, The shell is provided with a fresh air inlet communicated with the fresh air duct, and a second filter module is arranged near the fresh air inlet, and the detection head is arranged at the fresh air inlet.

Images