Double-layer flow air inlet structure of automobile air conditioner

Abstract

The utility model relates to the technical field of automobile air conditioners, in particular to a double-layer flow air inlet structure of an automobile air conditioner, which is characterized in that a left air door and a right air door which are in double semi-crescent shapes are adopted, the left air door and the right air door are arranged in a left-right asymmetrical and front-back side-by-side manner and are linked through a control mechanism, so that the left air door and the right air door are controlled; an inner circulation mode, an outer circulation mode and a double-layer flow mode are achieved, the air channels are matched with the fresh air middle shell and the fresh air right shell through grooves, a left filter screen and a right filter screen are combined, the left air channel and the right air channel are completely divided, and the risk that air flows in a lower-layer flow air inlet channel and an upper-layer flow air inlet channel is avoided; therefore, the performance and comfort of an air conditioner can be greatly improved, better refrigerating and heating effects of the air conditioner can be achieved in a limited space, and the technical problems that an inlet of an existing double-layer flow air inlet box is single, and the occupied space is large due to the fact that a flow guide plate is additionally arranged for air flow distribution and guiding are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a car air conditioner technical field especially relates to a car air conditioner double -deck flow air inlet structure. BACKGROUND

[0002] The car air conditioner can be transported by different heat management system cold wind or hot wind, so that the passenger still can be in a comfortable state under the condition that the outdoor environment is relatively hot or relatively cold, is widely used in various cars, and with the country vigorously advocating energy saving and emission reduction, the car air conditioner is also constantly innovated to cater to the national energy saving and emission reduction policy.

[0003] At present, the car air conditioner system is mostly the joint use of refrigeration device, heating device and ventilation device and other components, so that the occupied space of the car air conditioner system in the car can be greatly reduced, and the structure is relatively simple, convenient for the operation personnel to operate.

[0004] The air inlet box is an important part of the car air conditioner system, and the double -deck flow air inlet box is mostly on the market, but the current double -deck flow air inlet box is single, the fresh air supply and the return air supply are the same inlet, and the flow guide plate is installed to guide the airflow, and the space occupied is also large. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of double -deck flow air inlet structure of car air conditioner, solve the technical problem that the inlet of current double -deck flow air inlet box is single, fresh air supply and return air supply are the same inlet, and flow guide plate is additionally installed to guide airflow, and the space occupied is also large.

[0006] To achieve the above object, the utility model provides a kind of double -deck flow air inlet structure of car air conditioner, including fresh air left shell, fresh air middle shell, fresh air right shell, control mechanism, left air door, right air door, left filter screen and right filter screen, the fresh air left shell is sequentially provided from left to right with the fresh air middle shell and the fresh air right shell outside, the fresh air left shell and the fresh air middle shell jointly constitute lower layer flow air inlet passage, the fresh air middle shell and the fresh air right shell jointly constitute upper layer flow air inlet passage, the left air door and the right air door are respectively arranged in the lower layer flow air inlet passage and the upper layer flow air inlet passage, the control mechanism is used to control the opening and closing of the left air door and the right air door, the left filter screen and the right filter screen are respectively arranged below the lower layer flow air inlet passage and the upper layer flow air inlet passage.

[0007] The control mechanism includes a drive unit, a left damper shaft, and a right damper driven gear. The drive unit is used to drive the left damper shaft or the right damper driven gear to rotate. The left damper shaft is connected to the left damper, and the right damper driven gear is connected to the right damper. Both the left damper shaft and the right damper driven gear are located outside the right fresh air housing.

[0008] The drive unit includes a motor mounting plate, a fresh air motor, and a transmission component. The motor mounting plate is located on the outside of the right fresh air housing, near the left damper shaft. The fresh air motor is located on the side of the motor mounting plate away from the right fresh air housing. The transmission component is used to transmit the driving force of the fresh air motor to the left damper shaft or the right damper driven gear.

[0009] The transmission component includes a fresh air cam disc and a right damper drive gear. The fresh air cam disc is connected to the fresh air motor and is disposed on the outside of the right fresh air housing near the fresh air motor. The left damper shaft is movably disposed in the first track groove of the fresh air cam disc. The right damper drive gear meshes with the right damper driven gear and is disposed on the outside of the right fresh air housing near the fresh air motor. The right damper drive gear is movably disposed in the second track groove of the fresh air cam disc.

[0010] The control mechanism controls the left and right air dampers to achieve internal circulation mode, external circulation mode, and dual-layer flow mode.

[0011] The left and right air doors are arranged asymmetrically, and are arranged side by side.

[0012] The dual-layer air intake structure of the automotive air conditioner also includes a sealing plate, which is detachably connected to the left fresh air housing, the middle fresh air housing, and the right fresh air housing, and is disposed outside the left and right filters.

[0013] This utility model discloses a dual-layer flow air intake structure for automotive air conditioning. It employs a double crescent-shaped left and right air intake, arranged asymmetrically and side-by-side. A control mechanism links the left and right air intakes to achieve internal circulation, external circulation, and dual-layer flow modes. By using grooved connections between the air ducts and the inner and right housings of the fresh air system, and combining the left and right filters, the left and right air ducts are completely separated, avoiding the risk of cross-flow between the lower and upper air intake channels. This significantly improves air conditioning performance and comfort, and achieves better cooling and heating effects within a limited space. It solves the technical problems of existing dual-layer flow air intake boxes with a single inlet, where both fresh and return air are supplied from the same inlet, requiring additional baffles for airflow diversion and guidance, and occupying a large space. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Fig. 1 This is a schematic diagram of the overall structure of the dual-layer air intake structure of the automotive air conditioner according to the first embodiment of this utility model.

[0016] Fig. 2 This is a cross-sectional schematic diagram along the left damper rotation axis of the first embodiment of this utility model.

[0017] Fig. 3 This is a schematic diagram showing the connection between the motor fixing plate and the fresh air motor in the first embodiment of this utility model.

[0018] Fig. 4 This is a schematic diagram showing the connection between the driven tooth of the right damper and the driving tooth of the right damper in the first embodiment of this utility model.

[0019] In the diagram: 101-Left shell of fresh air system, 102-Middle shell of fresh air system, 103-Right shell of fresh air system, 104-Left damper, 105-Right damper, 106-Left filter, 107-Right filter, 108-Sealing plate, 109-Left damper shaft, 110-Right damper driven gear, 111-Motor mounting plate, 112-Fresh air motor, 113-Fresh air cam plate, 114-Right damper drive gear, 115-Lower laminar flow air inlet channel, 116-Upper laminar flow air inlet channel, 117-First track groove, 118-Second track groove. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] First embodiment:

[0022] Please see Figs. 1 to 4 This utility model provides a dual-layer air intake structure for automotive air conditioning, including a left fresh air housing 101, a middle fresh air housing 102, a right fresh air housing 103, a control mechanism, a left air damper 104, a right air damper 105, a left filter 106, a right filter 107, and a sealing plate 108. The control mechanism includes a drive unit, a left air damper rotating shaft 109, and a right air damper driven gear 110. The drive unit includes a motor fixing plate 111, a fresh air motor 112, and a transmission component. The transmission component includes a fresh air cam disc 113 and a right air damper drive gear 114.

[0023] In this embodiment, by employing the left damper 104 and the right damper 105 in a double crescent shape, and arranging them asymmetrically side-by-side, and through the linkage of the control mechanism, the left damper 104 and the right damper 105 are controlled to achieve internal circulation mode, external circulation mode, and dual-layer flow mode. This is achieved by using a grooved fit between the air duct and the fresh air inner housing 102 and the fresh air right housing 103, and by employing the left filter 10... The combination of 6 and the right filter 107 achieves complete separation between the left side and the left side air duct, avoiding the risk of crossflow between the lower laminar flow air inlet channel 115 and the upper laminar flow air inlet channel 116. This greatly improves the air conditioning performance and comfort. Furthermore, it can achieve better air conditioning cooling and heating effects in a limited space. It solves the technical problems of existing double-layer flow air inlet boxes with a single inlet, where both fresh air supply and return air supply use the same inlet, and where adding a guide plate for airflow diversion and guidance occupies a large space.

[0024] The fresh air left housing 101 is surrounded by a fresh air middle housing 102 and a fresh air right housing 103 arranged sequentially from left to right. The fresh air left housing 101 and the fresh air middle housing 102 together form a lower laminar flow air inlet channel 115, and the fresh air middle housing 102 and the fresh air right housing 103 together form an upper laminar flow air inlet channel 116. The left damper 104 and the right damper 105 are respectively disposed within the lower laminar flow air inlet channel 115 and the upper laminar flow air inlet channel 116. The control mechanism is used to control the left damper. The opening and closing of door 104 and the right air damper 105, the left filter 106 and the right filter 107 are respectively located below the lower laminar flow air inlet channel 115 and the upper laminar flow air inlet channel 116, and an air duct is provided below the right filter 107. The air duct is grooved to the fresh air middle housing 102 and the fresh air right housing 103 to prevent cross-flow between the lower laminar flow air inlet channel 115 and the upper laminar flow air inlet channel 116. The left filter 106 and the right filter 107 are separated by the fresh air middle housing 102.

[0025] Secondly, the drive unit is used to drive the left damper shaft 109 or the right damper driven gear 110 to rotate. The left damper shaft 109 is connected to the left damper 104, and the right damper driven gear 110 is connected to the right damper 105. Both the left damper shaft 109 and the right damper driven gear 110 are located outside the fresh air right housing 103.

[0026] Furthermore, the motor mounting plate 111 is disposed on the outside of the fresh air right housing 103 near the left damper shaft 109, and the fresh air motor 112 is disposed on the side of the motor mounting plate 111 away from the fresh air right housing 103. The transmission component is used to transmit the driving force of the fresh air motor 112 to the left damper shaft 109 or the right damper driven gear 110.

[0027] Meanwhile, the fresh air cam disk 113 is connected to the fresh air motor 112 and is located on the outside of the fresh air right housing 103 near the fresh air motor 112. The left damper shaft 109 is movably disposed in the first track groove 117 of the fresh air cam disk 113. The right damper active gear 114 meshes with the right damper driven gear 110 and is located on the outside of the fresh air right housing 103 near the fresh air motor 112. The right damper active gear 114 is movably disposed in the second track groove 118 of the fresh air cam disk 113.

[0028] In addition, the control mechanism controls the left damper 104 and the right damper 105 to realize internal circulation mode, external circulation mode and dual-layer flow mode. In the internal circulation mode, both the left damper 104 and the right damper 105 are open; in the external circulation mode, both the left damper 104 and the right damper 105 are closed; in the dual-layer flow mode, the left damper 104 is open and the right damper 105 is closed.

[0029] Furthermore, the left damper 104 and the right damper 105 are arranged asymmetrically from left to right, and the left damper 104 and the right damper 105 are arranged side by side from front to back. Both the left damper 104 and the right damper 105 are crescent-shaped dampers.

[0030] Finally, the sealing plate 108 is detached and connected to the left fresh air housing 101, the middle fresh air housing 102 and the right fresh air housing 103 respectively, and is placed outside the left filter 106 and the right filter 107 to seal the left filter 106 and the right filter 107.

[0031] When using the dual-layer air intake structure of an automotive air conditioner according to this embodiment, during operation, a control electrical signal is sent to the fresh air motor 112, causing the fresh air motor 112 to start upon receiving the control electrical signal. This causes the power output from the output shaft of the fresh air motor 112 to drive the fresh air cam disk 113 to rotate along the axis of the output shaft of the fresh air motor 112. Consequently, the first track groove 117 and the second track groove 118 on the fresh air cam disk 113 will rotate along the axis of the output shaft of the fresh air motor 112. When the first track groove 117 and the second track groove 118 on the fresh air cam disk 113 rotate... When the track groove 117 rotates, it drives the right damper active gear 114 to rotate along its own axis, thereby driving the right damper driven gear 110 to rotate, and then driving the right damper 105 to rotate in the upper laminar flow inlet channel 116, thereby controlling the opening or closing of the right damper 105. When the second track groove 118 on the fresh air cam disk 113 rotates, it drives the left damper rotating shaft 109 to rotate along its own axis, thereby driving the left damper 104 to rotate in the lower laminar flow inlet channel 115, thereby controlling the opening or closing of the left damper 104.

[0032] By employing a double crescent-shaped left damper 104 and a right damper 105, arranged asymmetrically and side-by-side, and then controlling the opening and closing of the left damper 104 and right damper 105 through a linkage control mechanism, three modes—internal circulation, external circulation, and dual-layer flow—are achieved. In the internal circulation mode, both the left damper 104 and right damper 105 are open; in the external circulation mode, both the left damper 104 and right damper 105 are closed; and in the dual-layer flow mode, the left damper 104 is open and the right damper 105 is closed.

[0033] By using grooved fits between the air duct and the fresh air inner shell 102 and the fresh air right shell 103, and combining the left filter 106 and the right filter 107, the left side and the left side air duct are completely separated, avoiding the risk of crossflow between the lower laminar flow air inlet channel 115 and the upper laminar flow air inlet channel 116. This greatly improves the air conditioning performance and comfort, and achieves better air conditioning cooling and heating effects in a limited space. It solves the technical problem of existing double-layer flow air inlet boxes having a single inlet, where both fresh air supply and return air supply use the same inlet, and requiring a large space due to the addition of a guide plate for airflow diversion and guidance.

[0034] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A dual-layer airflow intake structure for automotive air conditioning, characterized in that: The system includes a left fresh air housing, a middle fresh air housing, a right fresh air housing, a control mechanism, a left damper, a right damper, a left filter, and a right filter. The middle fresh air housing and the right fresh air housing are arranged sequentially from left to right outside the left fresh air housing. The left and middle fresh air housings together form a lower laminar flow air inlet channel, and the middle and right fresh air housings together form an upper laminar flow air inlet channel. The left and right dampers are respectively located in the lower and upper laminar flow air inlet channels. The control mechanism is used to control the opening and closing of the left and right dampers. The left and right filters are respectively located below the lower and upper laminar flow air inlet channels.

2. The dual-layer air intake structure for automotive air conditioning as described in claim 1, characterized in that: The control mechanism includes a drive unit, a left damper rotating shaft, and a right damper driven gear. The drive unit is used to drive the left damper rotating shaft or the right damper driven gear to rotate. The left damper rotating shaft is connected to the left damper, and the right damper driven gear is connected to the right damper. Both the left damper rotating shaft and the right damper driven gear are located outside the right fresh air housing.

3. The dual-layer air intake structure for automotive air conditioning as described in claim 2, characterized in that: The drive unit includes a motor mounting plate, a fresh air motor, and a transmission component. The motor mounting plate is located on the outside of the right fresh air housing, near the left damper shaft. The fresh air motor is located on the side of the motor mounting plate away from the right fresh air housing. The transmission component is used to transmit the driving force of the fresh air motor to the left damper shaft or the right damper driven gear.

4. The dual-layer air intake structure for automotive air conditioning as described in claim 3, characterized in that: The transmission component includes a fresh air cam disc and a right damper drive gear. The fresh air cam disc is connected to the fresh air motor and is disposed on the outside of the right fresh air housing near the fresh air motor. The left damper shaft is movably disposed in the first track groove of the fresh air cam disc. The right damper drive gear meshes with the right damper driven gear and is disposed on the outside of the right fresh air housing near the fresh air motor. The right damper drive gear is movably disposed in the second track groove of the fresh air cam disc.

5. The dual-layer air intake structure for automotive air conditioning as described in claim 4, characterized in that: The control mechanism controls the left and right air dampers to achieve internal circulation mode, external circulation mode, and dual-layer flow mode.

6. The dual-layer air intake structure for automotive air conditioning as described in claim 1, characterized in that: The left and right air doors are arranged asymmetrically, and are arranged side by side.

7. The dual-layer air intake structure for automotive air conditioning as described in claim 1, characterized in that: The dual-layer air intake structure of the automotive air conditioner also includes a sealing plate, which is detachably connected to the left fresh air housing, the middle fresh air housing, and the right fresh air housing, and is disposed outside the left and right filters.

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