Indoor and outdoor bidirectional air inlet detection structure of air conditioner and air conditioner
By using a dual-indoor and outdoor air intake detection structure for air conditioners, the problem of existing technologies that only detect indoor air quality is solved. This enables the detection and comparison of indoor and outdoor air quality, thereby improving the energy-saving and air quality control capabilities of air conditioners.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHANGHONG AIR CONDITIONER CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-24
AI Technical Summary
Existing air quality monitoring systems only detect indoor air quality and have difficulty detecting outdoor air quality. This means that adjusting the fresh air volume and fan speed cannot effectively improve indoor air quality and may even lead to a decline in indoor air quality.
Design an indoor and outdoor bidirectional air intake detection structure for an air conditioner. Through an air intake switching unit and a detection module, bidirectional detection of indoor and outdoor air can be achieved. By switching the air intake unit and cooperating with the detection module, indoor and outdoor air quality can be detected separately. The air conditioner body controls the fresh air circulation to improve air quality.
It enables accurate detection and comparison of indoor and outdoor air quality, improves the energy efficiency and air quality control capabilities of air conditioners, and prevents indoor air quality from declining.
Smart Images

Figure CN224162715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioner technology, and in particular to an indoor and outdoor bidirectional air intake detection structure for an air conditioner and an air conditioner. Background Technology
[0002] As people's living standards improve and their health awareness increases, their attention to indoor air quality is also constantly rising. Air conditioners, as important devices for improving the indoor environment, directly affect users' respiratory health and quality of life. They typically use built-in air quality monitoring systems to monitor indoor air quality in real time, including the concentration of harmful substances such as PM2.5, carbon dioxide, PM10, formaldehyde, and TVOCs, as well as parameters such as temperature and humidity. This provides users with timely and accurate environmental information, helping them understand the current indoor environmental conditions.
[0003] Currently, air quality monitoring systems primarily monitor indoor air conditions. Air conditioners then adjust their operation based on this data, such as increasing fresh air volume or changing fan speed, to improve indoor air quality. However, this process does not monitor the air quality in the external environment. If the air quality in the external environment is significantly lower than that in the indoor environment, increasing fresh air volume and changing fan speed will not effectively improve indoor air quality and may even worsen it. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides an indoor and outdoor bidirectional air intake detection structure for an air conditioner and an air conditioner, so as to solve the problem that current air quality detection systems generally only detect indoor air quality and are difficult to detect air quality in different environments.
[0005] To achieve the above objectives, the basic solution of this utility model is as follows: An indoor and outdoor bidirectional air intake detection structure for an air conditioner, comprising several detection modules and an air intake module that can communicate with the detection modules, the air intake module comprising:
[0006] The outer casing has several air inlets that can connect to indoor or outdoor air.
[0007] An air intake switching unit is installed inside the housing. The air intake switching unit has several air intake holes that can communicate with several air intake holes one by one. When one air intake hole is connected to another air intake hole, the air intake switching unit is sealed against the other air intake holes. Several detection modules are fixedly passed through the housing and communicate with the air intake switching unit.
[0008] The technical principle of this utility model is as follows: the air intake switching unit can switch to align different air intake holes with the air inlet, while closing misaligned air intake holes. This allows air entering the air intake switching unit from different air intake holes to be detected by several detection modules at a time, thereby obtaining corresponding air quality data. When different air intake holes are matched with corresponding air inlets, the air inlets can be connected to air from different environments, enabling the detection of air in different environments.
[0009] Furthermore, the air intake switching unit includes:
[0010] A hollow core, which is rotatably installed inside the outer shell;
[0011] An air inlet channel is coaxially fitted between the core and the outer shell. The outer wall of the air inlet channel is sealed against the inner wall of the outer shell, and the inner wall of the air inlet channel is sealed against the outer wall of the core.
[0012] The air inlet includes:
[0013] A number of first connecting holes are located on the side wall of the air inlet channel, and the first connecting holes correspond to and overlap with the air inlet holes one by one;
[0014] Several second connecting holes are located on the side wall of the core and are connected to the core; when one of the second connecting holes is connected to one of the first connecting holes, the outer wall of the air inlet channel is sealed against the remaining second connecting holes.
[0015] The side wall of the air inlet channel is provided with a first detection hole that communicates with the detection module, and the side wall of the outer shell is provided with a second detection hole that communicates with the first detection hole; an annular air passage is coaxially arranged on the inner wall of the first detection hole of the air inlet channel, and a third connecting hole that communicates with the annular air passage is provided on the side wall of the core.
[0016] With the above settings, when switching the air intake switching unit, simply rotating the core body can achieve matching and connection between several second connecting holes and several first connecting holes, and at the same time achieve matching and connection between several second connecting holes and several air intake holes. The annular air passage, third connecting hole, first detection hole and second detection hole can serve as transfer points for guiding air to the detection module, so that the switched air can still accurately enter the detection module for detection.
[0017] Furthermore, it also includes switching power units, which include:
[0018] The base is fixedly mounted on the outer shell; the core is coaxially and rotatably mounted on the base.
[0019] The motor that drives the core to rotate is fixedly mounted on the outer casing, and the power output end of the motor is fixedly connected to the end of the core away from the base.
[0020] With the above configuration, the base can support the rotation of the core, and the motor can provide stable power for the rotation of the core, so that the second connecting hole on the core can be precisely matched with the second connecting hole.
[0021] Furthermore, when a certain second connecting hole is connected to a certain first connecting hole, the third connecting hole is connected to the first detection hole and the second detection hole.
[0022] With the above settings, the third connecting hole can be matched with the positions of a certain second connecting hole and a certain first connecting hole, which can reduce the flow path of the air to be tested, improve the detection efficiency, and also improve the fit between the third connecting hole and the second connecting hole on the core.
[0023] Furthermore, a sealing gasket is fixedly installed at the rotating connection between the base and the core.
[0024] With the above settings, the fit between the core and the base is tighter, making the air flowing inside the core less susceptible to external air interference and improving detection accuracy.
[0025] Furthermore, the air intake is located on the side wall of the outer casing away from the base, and the second connecting hole is located on the side wall of the core away from the base.
[0026] The above settings make the arrangement of the air intake and the second connecting hole simpler and more reliable, and the corresponding cooperation between the air intake and the second connecting hole is also more convenient.
[0027] Furthermore, the detection module can be detachably installed on the housing.
[0028] With the above settings, the detection module is more tightly fitted to the housing, shortening the backflow path of the air to be tested between the detection module and the housing, making the detection more efficient.
[0029] Furthermore, the detection module includes:
[0030] The housing is detachably mounted on the outer shell. The housing has a detection air inlet that communicates with the second detection hole, and an air outlet is provided at the end of the housing away from the detection air inlet.
[0031] Several detection units are installed inside the housing;
[0032] The exhaust fan is installed inside the housing and located at the air outlet.
[0033] With the above configuration, the detection air inlet on the housing is more easily matched with the second detection port, and the detection module is better installed on the housing. Several detection units can be matched with modules that detect PM2.5, carbon dioxide, PM10, formaldehyde or TVOCs, making it easier to obtain the corresponding air quality information. At the same time, the exhaust fan can create negative pressure in the indoor and outdoor bidirectional air intake detection structure of the air conditioner, so that the air to be tested can be accurately entered into several detection units for detection.
[0034] Furthermore, the first detection hole is located in the middle of the air intake channel, and the second detection hole is located in the middle of the outer casing.
[0035] With the above configuration, the first and second detection holes located in the middle can be more easily matched with the positions of the second connecting holes distributed on the side of the core, so that the air to be tested entering from different second connecting holes is closer to the first and second detection holes, which facilitates the rapid flow of the air to be tested.
[0036] Furthermore, several air inlets are located on one side of the housing, while the second detection hole and detection module are located on the other side of the housing.
[0037] With the above settings, the air to be tested can be guided from one side of the housing to the detection module on the other side of the housing, making the air flow direction clear and smooth, and the arrangement of the detection module will not interfere with the air intake of several air inlets.
[0038] This utility model also aims to provide an air conditioner, including an air conditioner body and an indoor and outdoor bidirectional air intake detection structure, wherein the indoor and outdoor bidirectional air intake detection structure is installed on the air conditioner body.
[0039] The technical principle of this utility model is as follows: the indoor and outdoor bidirectional air intake detection structure of the air conditioner can detect indoor air quality and outdoor air quality respectively, making it convenient for users to obtain information on indoor and outdoor air quality and helping users understand the current indoor and outdoor air conditions; at the same time, the air conditioner body can control whether outdoor air enters the room by comparing indoor and outdoor air quality information. When the outdoor air quality is too low and the air conditioner body is unable to purify the outdoor air, the fresh air circulation can be shut off, which can effectively save energy and prevent the indoor air quality from declining. Attached Figure Description
[0040] Figure 1 This is a schematic diagram of the axial direction of an indoor and outdoor bidirectional air intake detection structure for an air conditioner according to Embodiment 1 of this utility model.
[0041] Figure 2 This is an exploded view of an indoor and outdoor bidirectional air intake detection structure for an air conditioner according to Embodiment 1 of this utility model.
[0042] Figure 3 This is a longitudinal sectional view of an indoor and outdoor bidirectional air intake detection structure for an air conditioner in Embodiment 1 of this utility model when detecting indoor air quality.
[0043] Figure 4 This is a longitudinal sectional view of an indoor and outdoor bidirectional air intake detection structure for an air conditioner in Embodiment 1 of this utility model when detecting outdoor air quality.
[0044] In the above figures: detection module 10, housing 101, suction fan 102, air outlet 103, detection air inlet 104, outer shell 20, air inlet 201, second detection hole 202, core 30, second connecting hole 301, third connecting hole 302, air inlet channel 40, first connecting hole 401, annular air channel 402, first detection hole 403, motor 50, base 60, sealing gasket 601. Detailed Implementation
[0045] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0046] Example 1
[0047] This embodiment is basically as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model embodiment proposes an indoor and outdoor bidirectional air intake detection structure for an air conditioner, including several detection modules 10, an air intake module that can communicate with the detection modules 10, and a switching power unit. Each detection module 10 includes a housing 101, several detection units, and an exhaust fan 102. The detection units are all installed inside the housing 101. Each detection unit can be a module that detects and acquires information on PM2.5, carbon dioxide, PM10, formaldehyde, or TVOCs. Figure 2 As shown, a detection air inlet 104 is provided on the upper left side of the housing 101, and an air outlet 103 is provided on the lower right end of the housing 101; Figure 3 As shown, the suction fan 102 is installed inside the lower left side of the housing 101 and located at the air outlet 103.
[0048] like Figure 2 , 3 and Figure 4 As shown, the air intake module includes a housing 20 and an air intake switching unit. The housing 101 is detachably mounted on the housing 20 by screws on the upper right and lower left sides. The front side of the housing 20 is provided with two air intake holes 201. The upper air intake hole 201 is connected to the indoor air, and the lower air intake hole 201 is connected to the outdoor air.
[0049] At the same time, such as Figure 2 , 3 and Figure 4As shown, the air intake switching unit includes a hollow core 30 and an air intake channel 40. The core 30 is rotatably mounted inside the outer shell 20. The air intake channel 40 is coaxially sleeved between the core 30 and the outer shell 20. The outer wall of the air intake channel 40 is sealed against the inner wall of the outer shell 20, and the inner wall of the air intake channel 40 is sealed against the outer wall of the core 30. Two first connecting holes 401 are provided on the side wall of the air intake channel 40, each corresponding to and overlapping with two air intake holes 201. Two second connecting holes 301 are provided on the side wall of the core 30, communicating with the core 30. Each second connecting hole 301 can communicate with one of the first connecting holes 401. When one of the second connecting holes 301 is connected to one of the first connecting holes 401, the outer wall of the air intake channel 40 is sealed against the remaining second connecting holes 301. Simultaneously, as... Figure 3 and Figure 4 As shown, the side wall of the air inlet channel 40 is provided with a first detection hole 403 that communicates with the detection module 10, and the side wall of the outer shell 20 is provided with a second detection hole 202 that communicates with the first detection hole 403; an annular air passage 402 is coaxially arranged on the inner wall of the first detection hole 403 of the air inlet channel 40, and a third connecting hole 302 that communicates with the annular air passage 402 is provided on the side wall of the core 30. The first detection hole 403 is located in the middle of the air inlet channel 40, and the second detection hole 202 is located in the middle of the outer shell 20. When the upper second connecting hole 301 communicates with the upper first connecting hole 401, the third connecting hole 302 communicates with the first detection hole 403 and the second detection hole 202.
[0050] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the switching power unit includes a base 60 and a motor 50 that drives the core 30 to rotate. The motor 50 is a stepper motor. The base 60 is fixedly mounted on the lower end of the housing 20 with screws. The core 30 is coaxially rotatably mounted on the base 60. A sealing gasket 601 is fixedly installed at the rotatable connection between the base 60 and the core 30. The motor 50 is fixedly mounted on the top end of the housing 20 with screws. The power output end of the motor 50 is fixedly connected to the upper end of the core 30 through a pin structure.
[0051] like Figure 2 , Figure 3 and Figure 4 As shown, the outer shell 20 of the detection module 10 is detachably mounted on the outer shell 20 by screws, and the detection air inlet 104 on the outer shell 20 is connected to the second detection hole 202.
[0052] In this embodiment, the indoor and outdoor bidirectional air intake detection structure for an air conditioner has three states during use: standby, indoor air detection, and outdoor air detection. When in standby mode, the motor 50 drives the core 30 to rotate, causing the two second connecting holes 301 on the core 30 to be misaligned with the two first connecting holes 401 and the two air intake holes 201. At this time, the entire indoor and outdoor bidirectional air intake detection structure of the air conditioner does not work, which can achieve the effect of energy-saving standby.
[0053] When testing indoor air quality, motor 50 drives core 30 to rotate, and core 30 rotates to the position indicated by... Figure 3 In the state shown, the second connecting hole 301 on the upper side of the core 30 is connected to the first connecting hole 401 and the air inlet 201 on the upper side. At this time, under the action of the suction fan 102, the negative pressure generated by the suction fan 102 passes through the detection air inlet 104, the first detection hole 403, the third connecting hole 302 and the hollow core 30 in sequence, and is then transmitted to the second connecting hole 301, the first connecting hole 401 and the air inlet 201 on the upper side. The air inlet 201 draws in the indoor air, so that the indoor air passes through the air inlet 201, the first connecting hole 401 and the second connecting hole 301. After entering the hollow core 30, the air enters directly into several detection units through the third connecting hole 302, the first detection hole 403, and the detection air inlet 104. The detection units detect the indoor air and the data obtained by the detection units (PM2.5, carbon dioxide, PM10, formaldehyde or TVOCs information, etc.) can be fed back to the air conditioner. The air conditioner can then adjust and improve the indoor air in real time, and at the same time, it is convenient for users to know the health status of the indoor air.
[0054] When detecting outdoor air quality, motor 50 drives core 30 to rotate, and core 30 rotates to the position indicated by... Figure 4In the state shown, the second connecting hole 301 on the lower side of the core 30 is connected to the first connecting hole 401 and the air inlet 201 on the lower side. At this time, under the action of the suction fan 102, the negative pressure generated by the suction fan 102 passes through the detection air inlet 104, the first detection hole 403, the annular air passage 402, the third connecting hole 302 and the hollow core 30 in sequence, and is then transmitted to the second connecting hole 301, the first connecting hole 401 and the air inlet 201 on the lower side. The air inlet 201 draws in outdoor air, so that indoor air enters the hollow core 30 after passing through the air inlet 201, the first connecting hole 401 and the second connecting hole 301. At this time, since the third connecting hole 302 and the first detection hole 403 are connected through the annular air passage 402, indoor air can pass through the third connecting hole 302 and the annular air passage 401. 2. The first detection port 403 and the detection air inlet 104 directly enter several detection units. The detection units detect the indoor air. At this time, the data information obtained by the detection units (PM2.5, carbon dioxide, PM10, formaldehyde or TVOCs information, etc.) can be fed back to the air conditioner. The air conditioner can compare the indoor air quality with the outdoor air quality, and then determine whether the outdoor air can be purified by the air conditioner and drawn into the room to improve the indoor air quality. When the outdoor air quality is significantly lower than the indoor air quality, and even after purification by the air conditioner itself, it is still lower than the indoor air quality, the air conditioner can be controlled to not draw in outdoor air. It can be widely used in fresh air systems. It can detect the outdoor air quality. When the outdoor air quality is too low, it can effectively save energy and prevent the indoor air quality from declining.
[0055] During the above process, the air conditioner's indoor and outdoor bidirectional air intake detection structure can quickly switch the core 30 to achieve three states: standby, indoor air detection, and outdoor air detection. This facilitates the detection of indoor and outdoor air quality, providing more comprehensive feedback on air quality information. By comparing indoor and outdoor air quality, it is easy to control whether the fresh air system is activated, thus ensuring more comprehensive protection of indoor air quality.
[0056] Example 2
[0057] The difference between Example 2 and Example 1 is that Example 2 is intended to provide an air conditioner, including an air conditioner body and an indoor and outdoor bidirectional air intake detection structure, which is installed on the air conditioner body.
[0058] In this embodiment, when the air conditioner is in use, the indoor and outdoor bidirectional air intake detection structure can detect the indoor and outdoor air quality respectively, making it convenient for users to obtain information on indoor and outdoor air quality and helping them understand the current indoor and outdoor air conditions. At the same time, the air conditioner itself can control whether outdoor air enters the room by comparing the indoor and outdoor air quality information. When the outdoor air quality is too low and the air conditioner itself is unable to purify the outdoor air, the fresh air circulation can be turned off, which can effectively save energy and prevent the indoor air quality from declining.
[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An indoor / outdoor bidirectional air intake detection structure for an air conditioner, comprising several detection modules and an air intake module communicatively connected to the detection modules, characterized in that, The air intake module includes: The outer casing is provided with several air inlets, which can connect to indoor or outdoor air. An air intake switching unit is installed inside the housing. The air intake switching unit has several air intake holes that can communicate with several air intake holes one by one. When one of the air intake holes is connected to one of the air intake holes, the air intake switching unit is sealed against the remaining air intake holes. Several detection modules are fixedly passed through the housing and communicate with the air intake switching unit.
2. The indoor and outdoor bidirectional air intake detection structure for an air conditioner as described in claim 1, characterized in that, The air intake switching unit includes: A hollow core, which is rotatably mounted inside a housing; An air inlet channel is coaxially sleeved between the core and the outer shell, with the outer wall of the air inlet channel sealing against the inner wall of the outer shell and the inner wall of the air inlet channel sealing against the outer wall of the core. The air inlet includes: A plurality of first connecting holes are located on the side wall of the air inlet channel, and the first connecting holes correspond to and overlap with the air inlet holes one by one; A plurality of second connecting holes are located on the side wall of the core and are connected to the core; when one of the second connecting holes is connected to one of the first connecting holes, the outer wall of the air inlet channel is sealed against the remaining second connecting holes. The air inlet channel has a first detection hole on its side wall that communicates with the detection module, and the outer shell has a second detection hole on its side wall that communicates with the first detection hole; an annular air passage is coaxially arranged on the inner wall of the first detection hole of the air inlet channel, and a third connecting hole is provided on the side wall of the core that communicates with the annular air passage.
3. The indoor and outdoor bidirectional air intake detection structure for an air conditioner as described in claim 2, characterized in that, It also includes a power switching unit, which includes: The base is fixedly mounted on the outer shell; the core is coaxially rotatably mounted on the base. A motor that drives the core to rotate is fixedly mounted on the outer casing, and the power output end of the motor is fixedly connected to the end of the core away from the base.
4. The indoor and outdoor bidirectional air intake detection structure for an air conditioner as described in claim 3, characterized in that, When a second connecting hole is connected to a first connecting hole, the third connecting hole is connected to the first detection hole and the second detection hole.
5. The indoor and outdoor bidirectional air intake detection structure for an air conditioner as described in claim 4, characterized in that, A sealing gasket is fixedly installed at the rotatable connection between the base and the core.
6. The indoor and outdoor bidirectional air intake detection structure for an air conditioner as described in claim 5, characterized in that, The air inlet is located on the side wall of the outer casing away from the base, and the second connecting hole is located on the side wall of the core away from the base.
7. The indoor and outdoor bidirectional air intake detection structure for an air conditioner as described in claim 1, characterized in that, The detection module can be detachably installed on the outer casing.
8. The indoor and outdoor bidirectional air intake detection structure for an air conditioner as described in claim 7, characterized in that, The detection module includes: The housing is detachably mounted on the outer shell. The housing has a detection air inlet that communicates with the second detection hole, and an air outlet is provided at the end of the housing away from the detection air inlet. A plurality of detection units, all of which are installed inside the housing; A suction fan, which is installed inside the housing and located at the air outlet.
9. The indoor and outdoor bidirectional air intake detection structure for an air conditioner as described in claim 2, characterized in that, The first detection hole is located in the middle of the air inlet channel, and the second detection hole is located in the middle of the outer casing.
10. The indoor and outdoor bidirectional air intake detection structure for an air conditioner as described in claim 9, characterized in that, Several of the air inlets are located on one side of the housing, and the second detection hole and the detection module are located on the other side of the housing.
11. An air conditioner, characterized in that, The invention includes an air conditioner body and an indoor / outdoor bidirectional air intake detection structure as described in any one of claims 1-9, wherein the indoor / outdoor bidirectional air intake detection structure is installed on the air conditioner body.