Dual cross-flow air conditioner and its control method

Abstract

The present invention discloses a double cross-flow air conditioner and its control method, which includes at least two air conditioner bodies. A cross-flow air duct is formed between adjacent first and second air conditioner bodies. The cross-flow air duct includes an air intake duct at the rear side and an air supply duct at the front side. A plurality of air intake guide plates are arranged in the air intake duct for opening and closing the air intake duct; the plurality of air intake guide plates are arranged in sequence up and down and can be independently controlled to open and close the corresponding air intake duct section through a control system and a driving mechanism; a human body sensing device is also arranged on the air conditioner body for collecting human body signals, and the control system is connected to the human body sensing device. By applying the above double cross-flow air conditioner, a plurality of air intake guide plates can be independently controlled to achieve segmented control of the air intake of the air intake channel. Combining with the human body sensing device and the air conditioner operation mode, the air intake guide plates can be automatically controlled to meet the needs of different people or physical conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to a double cross-flow air conditioner and its control method. Background Art

[0002] Generally, a double cross-flow air conditioner is provided with two sets of cross-flow fans, an air inlet corresponding to the cross-flow fan, and an air outlet in a housing to improve efficiency. In order to achieve comfortable air supply, the existing double cross-flow air conditioner adopts an air guiding technology, which can mix indoor air with the air after heat exchange and then enter the indoor environment, so as to achieve a feeling of being cool but not cold, and can achieve rapid cooling after closing the air guiding. However, in actual use, due to differences in user age, physical condition, etc., the air supply requirements for the air conditioner are different. In the existing air conditioner, the air guiding can only adjust the angle and the size of the air guiding volume, and it is difficult to meet the comfort requirements. Summary of the Invention

[0003] Based on this, the technical problem to be solved by the present invention is to provide a double cross-flow air conditioner with a simple structure and capable of automatically controlling air guiding according to the user's age and physical condition, and its control method.

[0004] To solve the above technical problem, the present invention is implemented by adopting the following technical solutions:

[0005] A double cross-flow air conditioner includes at least two air conditioner bodies. A cross-flow air duct is formed between adjacent first and second air conditioner bodies. The cross-flow air duct includes an air guiding duct at the rear side and a air supply duct at the front side. The air guiding duct is used to introduce external air into the cross-flow air duct. The air outlet of the air conditioner body is located in the air supply duct. A plurality of air guiding baffles are arranged in the air guiding duct for opening and closing the air guiding duct. The plurality of air guiding baffles are arranged in sequence from top to bottom and can be independently controlled to open and close the corresponding air guiding duct section through a control system and a driving mechanism. A human body sensing device is further arranged on the air conditioner body for collecting human body signals. The control system is connected to the human body sensing device and controls the opening or closing of the air guiding baffle according to the human body signals.

[0006] In one embodiment, each air guiding baffle includes a left air guiding baffle and a right air guiding baffle, and the corresponding air guiding duct section is opened and closed by controlling the movement of the left air guiding baffle and the right air guiding baffle.

[0007] In one embodiment, the air guiding baffle is arranged on the midline of the air guiding duct in the length direction and can rotate around the midline.

[0008] In one embodiment, there are two air guiding baffles, including an upper air guiding baffle and a lower air guiding baffle.

[0009] In one embodiment, the human body sensing device includes a plurality of human sensors for collecting human height signals; the control system is connected to the human sensors and controls the air guiding plate to open or close according to the human height signals.

[0010] In one embodiment, the human body sensing device includes a multi-channel human sensor for collecting human body temperature signals at different heights; the control system is connected to the multi-channel human sensor and controls the air guiding plate to open or close according to the human body temperature signals.

[0011] A control method for a double cross-flow air conditioner includes the double cross-flow air conditioner, and the control method includes:

[0012] According to the human body signals collected by the human body sensing device and the operating mode of the air conditioner, the control system controls each air guiding plate to open or close correspondingly.

[0013] In one embodiment, the human body sensing device includes a plurality of human sensors for collecting human height signals; the control system is connected to the human sensors and controls the air guiding plate to open or close according to the human height signals;

[0014] The control method specifically includes:

[0015] When the operating mode of the air conditioner is the cooling mode and the human sensor does not collect a human height signal, the control system controls all the air guiding plates to close completely, and the air guiding duct is completely closed.

[0016] When the operating mode of the air conditioner is the cooling mode and the human sensor collects a human height signal, the control system judges the human height according to the human height signal, controls the air guiding plates higher than the human height to close, and the air guiding plates lower than the human height to open.

[0017] In one embodiment, the control method further includes:

[0018] When the operating mode of the air conditioner is the heating mode and the human sensor does not collect a human height signal, the control system controls all the air guiding plates to open completely, and the air guiding duct is completely opened.

[0019] When the operating mode of the air conditioner is the heating mode and the human sensor collects a human height signal, the control system judges the human height according to the human height signal, controls the air guiding plates higher than the human height to open, and the air guiding plates lower than the human height to close.

[0020] In one embodiment, the human body sensing device includes a multi-channel human sensor for collecting human body temperature signals at different heights; the control system is connected to the multi-channel human sensor and controls the air guiding plate to open or close according to the human body temperature signal.

[0021] The control method specifically includes:

[0022] When the operation mode of the air conditioner is the cooling mode and the multi-channel human sensor does not collect a human body temperature signal, the control system controls all the air guiding plates to close completely, and the air guiding air duct is completely closed.

[0023] When the operation mode of the air conditioner is the cooling mode and the multi-channel human sensor collects a human body temperature signal, the control system judges the hot and cold states of the upper and lower parts of the human body according to the human body temperature signals at different heights and the preset hot and cold data of the human body surface temperature, and controls the air guiding plate corresponding to the hot part of the human body in height to close, and the air guiding plate corresponding to the cold part of the human body in height to open.

[0024] In one embodiment, the control method further includes:

[0025] When the operation mode of the air conditioner is the heating mode and the multi-channel human sensor does not collect a human body temperature signal, the control system controls all the air guiding plates to open completely, and the air guiding air duct is completely opened.

[0026] When the operation mode of the air conditioner is the heating mode and the multi-channel human sensor collects a human body temperature signal, the control system judges the hot and cold states of the upper and lower parts of the human body according to the human body temperature signals at different heights and the preset hot and cold data of the human body surface temperature, and controls the air guiding plate corresponding to the hot part of the human body in height to open, and the air guiding plate corresponding to the cold part of the human body in height to close.

[0027] Compared with the prior art, the advantages and positive effects of the present invention are:

[0028] In the above double cross-flow air conditioner, a plurality of air guiding plates are arranged along the height direction in the air guiding channel, and their opening and closing can be independently controlled, so as to realize the segmented control of the air guiding in the air guiding channel. Combined with the human body sensing device and the operation mode of the air conditioner, the air guiding plates can be automatically controlled to meet the needs of different people or physical conditions. For example, when judging as a child according to the human body height, the lower air guiding plate is opened during cooling to protect the child; or according to the human body temperature at different heights, the temperature of the upper and lower parts of the human body is judged, and the corresponding air guiding plates are respectively controlled to open or close to achieve rapid cooling or heating. Description of the Drawings

[0029] Figure 1 Schematic cross-sectional structure diagram of the double cross-flow air conditioner of the present invention;

[0030] Figure 2 Front view of the first embodiment of the double cross-flow air conditioner of the present invention;

[0031] Figure 3 Front view of the second embodiment of the double cross-flow air conditioner of the present invention;

[0032] Explanation of reference numerals:

[0033] First air conditioner body 110; second air conditioner body 120;

[0034] Air intake duct 210; air supply duct 220; air outlet 230;

[0035] Air intake guide plate 300; upper air intake guide plate 310; lower air intake guide plate 320. Detailed implementation manners

[0036] The following will elaborate on the specific implementation manners of the present invention in conjunction with the accompanying drawings of the specification. However, the present invention can be implemented in many different ways defined and covered by the claims.

[0037] First, a brief explanation of the technical terms involved in the detailed implementation manners is given:

[0038] When referring to the front or rear, upper or lower, left or right of each structural member below, it is defined based on the position of the structural member relative to the user in the normal use state. Moreover, it should be noted that using front or rear, upper or lower, left or right is only for the convenience of description and to simplify the description, rather than indicating or implying that the device or structural member referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the invention. The following heat exchange air refers to the air inside the air conditioner body that has undergone heat exchange through the heat exchanger; the non-heat exchange air refers to the air from the environmental space where the air conditioner body is located, which is relative to the heat exchange air and is not directly from the heat exchanger; the mixed air refers to the air formed by the mixture of the heat exchange air and the non-heat exchange air.

[0039] The double cross-flow air conditioner includes an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected through connecting pipes to realize the circulation of the refrigerant, and the indoor unit and the outdoor unit are connected through connecting wires to realize power supply and communication.

[0040] The air conditioner indoor unit includes at least two air conditioner bodies. In this embodiment, a vertical air conditioner indoor unit is taken as an example for illustration. Refer to Figures 1 - 3, the vertical air conditioner indoor unit of this embodiment includes two air conditioner bodies, namely the first air conditioner body 110 and the second air conditioner body 120, and the first air conditioner body 110 and the second air conditioner body 120 are symmetrically arranged. A through ventilation duct is formed between the first air conditioner body 110 and the second air conditioner body 120. The through ventilation duct includes an air intake duct 210 at the rear side and an air supply duct 220 at the front side. The air intake duct 210 is used to introduce external air into the through ventilation duct, that is, non-heat exchange air enters the through ventilation duct. The heat exchange air and the non-heat exchange air are mixed in the through ventilation duct to form a mixed air with a suitable temperature. An air supply opening of the air supply duct 220 is formed between the front ends of the first air conditioner body 110 and the second air conditioner body 120. The air outlet 230 of the first air conditioner body 110 and the second air conditioner body 120 is located in the air supply duct 220.

[0041] In order to adjust the air intake volume at different heights, a plurality of air intake guide plates 300 are arranged in the through ventilation duct, and the plurality of air intake guide plates 300 are used to open and close the air intake duct 210. The plurality of air intake guide plates 300 are arranged in sequence from top to bottom, and can independently control the opening and closing of the corresponding air intake duct 210 section through a control system and a driving mechanism. In this embodiment, preferably two air intake guide plates 300 are provided, including an upper air intake guide plate 310 and a lower air intake guide plate 320. A human body sensing device is also arranged on the air conditioner body for collecting human body signals. The control system is connected to the human body sensing device and controls the opening or closing of the air intake guide plate 300 according to the human body signals, so that the corresponding air intake duct 210 section is opened or closed, and air intake is turned on or off at different heights to meet the needs of different people or physical conditions.

[0042] For the above double cross-flow air conditioner, a plurality of air intake guide plates 300 are arranged in the air intake channel along the height direction, and their opening and closing can be independently controlled, so that sectional control of the air intake in the air intake channel can be realized. Combined with the human body sensing device, the air intake guide plate 300 can be automatically controlled to meet the needs of different people or physical conditions. For example, when it is judged to be a child according to the human body height, the lower air intake guide plate 300 is opened during refrigeration to protect the child; or according to the human body temperature at different heights, the temperature of the upper and lower parts of the human body is judged, and the corresponding air intake guide plate 300 is respectively controlled to open or close to achieve rapid cooling or heating.

[0043] In one embodiment, as shown in the figure, each air intake guide plate 300 includes a left air intake guide plate and a right air intake guide plate. The left air intake guide plate and the right air intake guide plate are driven by a driving mechanism to move, so as to open and close the corresponding air intake duct 210 section. The opening and closing forms of the left and right air intake guide plates and the driving mechanism are not specifically limited. For example, the driving mechanism can be a slide rail mechanism, and the left air intake guide plate and the right air intake guide plate slide open to both sides; the driving mechanism can also be a rotating shaft mechanism, and the left air intake guide plate and the right air intake guide plate rotate along the rotating shafts on both sides respectively to achieve opening and closing.

[0044] In another embodiment, the air guiding plate 300 is disposed on the midline of the air guiding duct 210 in the length direction and can rotate around the midline. The rotation center of the air guiding plate 300 is set in the middle of the plate. Each air guiding plate 300 is driven to rotate by a motor. The air guiding plate 300 can be rotated to the open state. At this time, the air guiding plate 300 coincides with the symmetry plane of the first air conditioner body 110 and the second air conditioner body 120, and the air guiding plate 300 basically has no blocking effect on the air guiding of the rear air guiding duct 210. The air guiding plate 300 can be rotated to the fully closed state. At this time, the air guiding plate 300 is perpendicular to the symmetry plane of the first air conditioner body 110 and the second air conditioner body 120, closing the air guiding duct 210, and the through duct cannot realize air guiding from the rear.

[0045] In the present invention, different human body signals collected by the human body sensing device result in different functions realized by the air conditioner.

[0046] Embodiment 1

[0047] The human body sensing device includes a plurality of human sensing sensors arranged along the height of the air conditioner for collecting human body height signals; the control system is connected to the human sensing sensors and controls the opening or closing of the air guiding plate 300 according to the human body height signals. In this embodiment, the human body height signals can be used to detect the human body height, distinguish children from adults, and implement air outlet protection for children. The specific control method will be described in detail later.

[0048] Embodiment 2

[0049] The human body sensing device includes a multi-channel human sensing sensor for collecting human body temperature signals at different heights; the control system is connected to the multi-channel human sensing sensor and controls the opening or closing of the air guiding plate 300 according to the human body temperature signals. In this embodiment, the human body temperature signals at different heights can be used to detect the surface temperatures of the upper and lower parts of the human body. According to the preset cold and hot data of the human body surface temperature, the cold and hot states of each part of the user's body can be judged, and the air guiding can be automatically controlled according to the cold and hot states to meet the comfort requirements. The specific control method will be described in detail later.

[0050] The control method of the double cross-flow air conditioner of the present invention includes: the control system controls the corresponding opening or closing of each air guiding plate 300 according to the human body signals collected by the human body sensing device and the operating mode of the air conditioner.

[0051] Embodiment 1

[0052] The human body sensing device includes a plurality of human sensing sensors for collecting human body height signals; the control system is connected to the human sensing sensors and controls the opening or closing of the air guiding plate 300 according to the human body height signals.

[0053] The control method specifically includes:

[0054] S110. When the operation mode of the air conditioner is the cooling mode and the human presence sensor does not collect the human height signal, the control system controls all the air guiding plates 300 to close completely, and the air guiding air duct 210 is completely closed, so that ordinary cooling can be achieved.

[0055] S120. When the operation mode of the air conditioner is the cooling mode and the human presence sensor collects the human height signal, the control system judges the human height according to the human height signal, controls the air guiding plates 300 higher than the human height to close, and the air guiding plates 300 lower than the human height to open.

[0056] In this embodiment, the air guiding plate 300 includes an upper air guiding plate 310 and a lower air guiding plate 320. The control system judges the human height according to the human height signal. When it is judged to be the height of an adult, the upper air guiding plate 310 and the lower air guiding plate 320 are both controlled to open; when it is judged to be the height of a child, the upper air guiding plate 310 is controlled to close and the lower air guiding plate 320 is controlled to open, and the mixed air with appropriate temperature is blown out from the lower air outlet 230 of the air conditioner to avoid direct blowing of cold air to protect children.

[0057] The control method further includes:

[0058] S130. When the operation mode of the air conditioner is the heating mode and the human presence sensor does not collect the human height signal, the control system controls all the air guiding plates 300 to open completely, and the air guiding air duct 210 is completely opened. The hot air is fully mixed with the air, and the whole house has a better heating effect.

[0059] S140. When the operation mode of the air conditioner is the heating mode and the human presence sensor collects the human height signal, the control system judges the human height according to the human height signal, controls the air guiding plates 300 higher than the human height to open, and the air guiding plates 300 lower than the human height to close.

[0060] The control system judges the human height according to the human height signal. When it is judged to be the height of an adult, the upper air guiding plate 310 and the lower air guiding plate 320 are both closed, and the air outlet temperature becomes higher without changing other conditions, so that the user can quickly warm up. When it is judged to be the height of a child, the upper air guiding plate 310 is controlled to open and the lower air guiding plate 320 is controlled to close, and the hot air is blown out from the lower air outlet 230 of the air conditioner, so that the user can quickly warm up.

[0061] Embodiment 2

[0062] The human body sensing device includes a multi-channel human presence sensor for collecting human body temperature signals at different heights; the control system is connected to the multi-channel human presence sensor and controls the air guiding plate 300 to open or close according to the human body temperature signal.

[0063] The control method specifically includes:

[0064] S210. When the operating mode of the air conditioner is the cooling mode and the multi-channel human presence sensor does not collect a human body temperature signal, the control system controls all the air guiding plates 300 to close completely, and the air guiding air duct 210 is completely closed, enabling ordinary cooling.

[0065] S220. When the operating mode of the air conditioner is the cooling mode and the multi-channel human presence sensor collects a human body temperature signal, the control system determines the hot and cold states of the upper and lower parts of the human body according to the human body temperature signals at different heights and the preset hot and cold data of the human body surface temperature, and controls the air guiding plates 300 corresponding to the human body parts in the hot state at the height to close, and the air guiding plates 300 corresponding to the human body parts in the cold state at the height to open.

[0066] In this embodiment, the air guiding plate 300 includes an upper air guiding plate 310 and a lower air guiding plate 320. The control system controls both the upper air guiding plate 310 and the lower air guiding plate 320 to close when it determines that the human body is hot according to the human body temperature signal; controls both the upper air guiding plate 310 and the lower air guiding plate 320 to open when it determines that the human body is cold; controls the upper air guiding plate 310 to close and the lower air guiding plate 320 to open when it determines that the upper part of the human body is hot and the lower part is cold; controls the upper air guiding plate 310 to open and the lower air guiding plate 320 to close when it determines that the upper part of the human body is cold and the lower part is hot.

[0067] The control method further includes:

[0068] S230. When the operating mode of the air conditioner is the heating mode and the multi-channel human presence sensor does not collect a human body temperature signal, the control system controls all the air guiding plates 300 to open completely, and the air guiding air duct 210 is completely opened. The hot air is fully mixed with the air, and the whole house has a better heating effect.

[0069] S240. When the operating mode of the air conditioner is the heating mode and the multi-channel human presence sensor collects a human body temperature signal, the control system determines the hot and cold states of the upper and lower parts of the human body according to the human body temperature signals at different heights and the preset hot and cold data of the human body surface temperature, and controls the air guiding plates 300 corresponding to the human body parts in the hot state at the height to open, and the air guiding plates 300 corresponding to the human body parts in the cold state at the height to close.

[0070] The control system controls both the upper air guiding plate 310 and the lower air guiding plate 320 to open when it determines that the human body is hot according to the human body temperature signal; controls both the upper air guiding plate 310 and the lower air guiding plate 320 to close when it determines that the human body is cold; controls the upper air guiding plate 310 to open and the lower air guiding plate 320 to close when it determines that the upper part of the human body is hot and the lower part is cold; controls the upper air guiding plate 310 to close and the lower air guiding plate 320 to open when it determines that the upper part of the human body is cold and the lower part is hot.

[0071] It should be noted that the refrigeration modes described in the present invention generally refer to all modes of reducing the indoor temperature through an air conditioner, including: refrigeration mode, dehumidification mode, rapid cooling mode, etc.

[0072] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several variations and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A double cross-flow air conditioner, comprising at least two air conditioner bodies, a cross-flow air duct is formed between adjacent first and second air conditioner bodies, the cross-flow air duct includes an air intake duct at the rear side and an air supply duct at the front side, the air intake duct is used to introduce external air into the cross-flow air duct, and the air outlet of the air conditioner body is located in the air supply duct, characterized in that, A plurality of air guiding baffles are arranged in the air guiding air duct for opening and closing the air guiding air duct; the plurality of air guiding baffles are arranged in sequence from top to bottom and can be individually controlled to open and close the corresponding air guiding air duct sections through a control system and a driving mechanism; a human body sensing device is further arranged on the air conditioner body for collecting human body signals, and the control system is connected to the human body sensing device and controls the opening or closing of the air guiding baffle according to the human body signals; The control method of the double cross-flow air conditioner includes: The human body sensing device includes a plurality of human sensing sensors for collecting human body height signals; when the operating mode of the air conditioner is the heating mode and the human sensing sensors collect human body height signals, the control system judges the human body height according to the human body height signals and controls the air guiding baffles higher than the human body height to open and the air guiding baffles lower than the human body height to close.

2. The double cross-flow air conditioner according to claim 1, characterized in that, Each of the air guiding baffles includes a left air guiding baffle and a right air guiding baffle, and the corresponding air guiding air duct section is opened and closed by controlling the movement of the left air guiding baffle and the right air guiding baffle.

3. The double cross-flow air conditioner according to claim 1, characterized in that, The air guiding baffle is arranged on the midline of the air guiding air duct in the length direction and can rotate around the midline.

4. The double cross-flow air conditioner according to any one of claims 1-3, characterized in that, There are two air guiding baffles, including an upper air guiding baffle and a lower air guiding baffle.

5. The double cross-flow air conditioner according to claim 1, characterized in that, The human body sensing device includes a plurality of human sensing sensors for collecting human body height signals; the control system is connected to the human sensing sensors and controls the opening or closing of the air guiding baffle according to the human body height signals.

6. The double cross-flow air conditioner according to claim 1, characterized in that, The human body sensing device includes a multi-channel human sensing sensor for collecting human body temperature signals at different heights; the control system is connected to the multi-channel human sensing sensor and controls the opening or closing of the air guiding baffle according to the human body temperature signals.

7. A control method for a double cross-flow air conditioner, characterized in that, Including the double cross-flow air conditioner according to claim 1, the control method includes: According to the human body signals collected by the human body sensing device and the operating mode of the air conditioner, the control system controls each air guiding baffle to open or close correspondingly.

8. The control method according to claim 7, characterized in that, The human body sensing device includes a plurality of human sensing sensors for collecting human body height signals; the control system is connected to the human sensing sensors and controls the opening or closing of the air guiding baffle according to the human body height signals; The control method specifically includes: When the operating mode of the air conditioner is the cooling mode and the human sensing sensors do not collect human body height signals, the control system controls all the air guiding baffles to close completely, and the air guiding air duct is completely closed; When the operating mode of the air conditioner is the cooling mode and the human sensing sensors collect human body height signals, the control system judges the human body height according to the human body height signals and controls the air guiding baffles higher than the human body height to close and the air guiding baffles lower than the human body height to open.

9. The control method according to claim 8, characterized in that, The control method further includes: When the operating mode of the air conditioner is the heating mode and the human sensing sensors do not collect human body height signals, the control system controls all the air guiding baffles to open completely, and the air guiding air duct is completely opened.

10. The control method according to claim 7, characterized in that, The human body sensing device includes a multi-channel human sensor for collecting human body temperature signals at different heights; the control system is connected to the multi-channel human sensor and controls the air guiding plate to open or close according to the human body temperature signal; The control method specifically includes: When the operation mode of the air conditioner is the cooling mode and the multi-channel human sensor does not collect a human body temperature signal, the control system controls all of the plurality of air guiding plates to close, completely closing the air guiding air duct; When the operation mode of the air conditioner is the cooling mode and the multi-channel human sensor collects a human body temperature signal, the control system determines the hot and cold states of the upper and lower parts of the human body according to the human body temperature signals at different heights and the preset hot and cold data of the human body surface temperature, and controls the air guiding plate corresponding to the human body part in the hot state at the height to close, and the air guiding plate corresponding to the human body part in the cold state at the height to open.

11. The control method according to claim 10, characterized in that, The control method further includes: When the operation mode of the air conditioner is the heating mode and the multi-channel human sensor does not collect a human body temperature signal, the control system controls all of the plurality of air guiding plates to open, completely opening the air guiding air duct; When the operation mode of the air conditioner is the heating mode and the multi-channel human sensor collects a human body temperature signal, the control system determines the hot and cold states of the upper and lower parts of the human body according to the human body temperature signals at different heights and the preset hot and cold data of the human body surface temperature, and controls the air guiding plate corresponding to the human body part in the hot state at the height to open, and the air guiding plate corresponding to the human body part in the cold state at the height to close.

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