Double-layer flow air inlet structure of automobile air conditioner

Abstract

The invention 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 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 present invention relates to the technical field of automotive air conditioners, and particularly to a double-layer air inlet structure for automotive air conditioners. Background Art

[0002] Automotive air conditioners can deliver cold or hot air through different thermal management systems, enabling passengers to remain in a comfortable state even when the outdoor environment is relatively hot or cold, and are widely used in various types of vehicles.

[0003] Currently, most automotive air conditioning systems are a combination of components such as refrigeration devices, heating devices, and ventilation and air exchange devices, which can greatly reduce the occupied space of the automotive air conditioning system inside the vehicle. Moreover, the structure is relatively simple, facilitating operation by users.

[0004] The air inlet box is an important part of the automotive air conditioning system. Most of the air inlet boxes on the market are double-layer air inlet boxes. However, the current double-layer air inlet boxes have a single inlet, and both the fresh air supply and the return air supply use the same inlet, and a flow guide plate is installed for air flow diversion and guidance, resulting in a relatively large occupied space. Summary of the Invention

[0005] The purpose of the present invention is to provide a double-layer air inlet structure for automotive air conditioners, which solves the technical problems of the existing double-layer air inlet box having a single inlet, both the fresh air supply and the return air supply using the same inlet, and a flow guide plate being installed for air flow diversion and guidance, resulting in a relatively large occupied space.

[0006] To achieve the above purpose, the present invention provides a double-layer air inlet structure for automotive air conditioners, including a fresh air left housing, a fresh air middle housing, a fresh air right housing, a control mechanism, a left air damper, a right air damper, a left filter, and a right filter. The fresh air middle housing and the fresh air right housing are sequentially arranged outside the fresh air left housing from left to right. The fresh air left housing and the fresh air middle housing jointly form a lower-layer air inlet channel, and the fresh air middle housing and the fresh air right housing jointly form an upper-layer air inlet channel. The left air damper and the right air damper are respectively arranged in the lower-layer air inlet channel and the upper-layer air inlet channel. The control mechanism is used to control the opening and closing of the left air damper and the right air damper. The left filter and the right filter are respectively arranged below the lower-layer air inlet channel and the upper-layer air inlet channel.

[0007] Among them, the control mechanism includes a driving part, a left air damper rotating shaft, and a right air damper driven gear. The driving part is used to drive the rotation of the left air damper rotating shaft or the right air damper driven gear. The left air damper rotating shaft is connected to the left air damper, and the right air damper driven gear is connected to the right air damper. Both the left air damper rotating shaft and the right air damper driven gear are located outside the fresh air right housing.

[0008] Among them, the driving part includes a motor fixing plate, a fresh air motor and a transmission member. The motor fixing plate is arranged on one side of the outer part of the right fresh air housing close to the left air damper rotating shaft. The fresh air motor is arranged on the side of the motor fixing plate away from the right fresh air housing. The transmission member is used to transmit the driving force of the fresh air motor to the left air damper rotating shaft or the right air damper driven gear.

[0009] Among them, the transmission member includes a fresh air cam disc and a right air damper driving gear. The fresh air cam disc is connected to the fresh air motor and is arranged on one side of the outer part of the right fresh air housing close to the fresh air motor. And the left air damper rotating shaft is movably arranged in the first track groove of the fresh air cam disc. The right air damper driving gear meshes with the right air damper driven gear and is arranged on one side of the outer part of the right fresh air housing close to the fresh air motor. And the right air damper driving gear is movably arranged in the second track groove of the fresh air cam disc.

[0010] Among them, the control mechanism controls the left air damper and the right air damper to realize the internal circulation mode, the external circulation mode and the double-layer flow mode.

[0011] Among them, the left air damper and the right air damper are arranged asymmetrically left and right, and the left air damper and the right air damper are arranged side by side front and back.

[0012] Among them, the double-layer flow air inlet structure of the automotive air conditioner further includes a closing plate. The closing plate is detachably connected to the left fresh air housing, the middle fresh air housing and the right fresh air housing respectively, and is arranged outside the left filter screen and the right filter screen.

[0013] For a double-layer flow air inlet structure of an automotive air conditioner according to the present invention, by adopting the left air damper and the right air damper in a double semi-crescent shape, and arranging the left air damper and the right air damper in an asymmetric left-right and side-by-side front-back manner, and then through the linkage of the control mechanism, controlling the left air damper and the right air damper to realize the internal circulation mode, the external circulation mode and the double-layer flow mode. By making the air duct fit with the middle fresh air housing and the right fresh air housing in a groove manner, and adopting the combination of the left filter screen and the right filter screen, the complete separation between the left side and the left air duct is realized, avoiding the risk of air leakage between the lower-layer flow air inlet channel and the upper-layer flow air inlet channel. Thus, the air conditioner performance and comfort can be greatly improved. And, it can achieve better air conditioning refrigeration and heating effects under limited space, solving the technical problems of the existing double-layer flow air inlet box with a single inlet, where the fresh air supply and the return air supply are both from the same inlet, and adding a flow guide plate for air flow diversion and guidance, which occupies a relatively large space. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art.

[0015] Figure 1 It is a schematic diagram of the overall structure of the double-layer inflow air structure of the automotive air conditioner according to the first embodiment of the present invention.

[0016] Figure 2 It is a schematic cross-sectional view along the left air door rotating shaft according to the first embodiment of the present invention.

[0017] Figure 3 It is a schematic connection diagram of the motor fixing plate and the fresh air motor according to the first embodiment of the present invention.

[0018] Figure 4 It is a schematic connection diagram of the right air door driven gear and the right air door driving gear according to the first embodiment of the present invention.

[0019] In the figure: 101 - fresh air left housing, 102 - fresh air middle housing, 103 - fresh air right housing, 104 - left air door, 105 - right air door, 106 - left filter, 107 - right filter, 108 - closing plate, 109 - left air door rotating shaft, 110 - right air door driven gear, 111 - motor fixing plate, 112 - fresh air motor, 113 - fresh air cam disc, 114 - right air door driving gear, 115 - lower layer inflow air channel, 116 - upper layer inflow air channel, 117 - first track groove, 118 - second track groove. Detailed implementation manners

[0020] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0021] First embodiment:

[0022] Please refer to Figures 1 to 4 , the present invention provides a double-layer inflow air structure for an automotive air conditioner, including a fresh air left housing 101, a fresh air middle housing 102, a fresh air right housing 103, a control mechanism, a left air door 104, a right air door 105, a left filter 106, a right filter 107 and a closing plate 108. The control mechanism includes a driving part, a left air door rotating shaft 109 and a right air door driven gear 110. The driving part includes a motor fixing plate 111, a fresh air motor 112 and a transmission member. The transmission member includes a fresh air cam disc 113 and a right air door driving gear 114.

[0023] In this embodiment, by adopting the left air damper 104 and the right air damper 105 in a double half-moon shape, and arranging the left air damper 104 and the right air damper 105 in an asymmetric left-right and front-back side-by-side manner, and then controlling the left air damper 104 and the right air damper 105 through the linkage of the control mechanism, an internal circulation mode, an external circulation mode, and a double-layer flow mode are realized. By making the air duct cooperate with the fresh air middle housing 102 and the fresh air right housing 103 through grooves, and adopting the combination of the left filter 106 and the right filter 107, a complete separation between the left side and the left air duct is achieved, avoiding the risk of air leakage between the lower laminar flow inlet channel 115 and the upper laminar flow inlet channel 116. Thereby, the air-conditioning performance and comfort can be greatly improved. Moreover, under a limited space, a better air-conditioning cooling and heating effect can be achieved, solving the technical problems of the existing double-layer flow air inlet box with a single inlet, where both the fresh air supply and the return air supply use the same inlet, and a deflector is added for air flow diversion and guidance, which occupies a relatively large space.

[0024] Wherein, the fresh air middle housing 102 and the fresh air right housing 103 are sequentially arranged outside the fresh air left housing 101 from left to right. The fresh air left housing 101 and the fresh air middle housing 102 jointly form the lower laminar flow inlet channel 115, the fresh air middle housing 102 and the fresh air right housing 103 jointly form the upper laminar flow inlet channel 116. The left air damper 104 and the right air damper 105 are respectively arranged in the lower laminar flow inlet channel 115 and the upper laminar flow inlet channel 116. The control mechanism is used to control the opening and closing of the left air damper 104 and the right air damper 105. The left filter 106 and the right filter 107 are respectively arranged below the lower laminar flow inlet channel 115 and the upper laminar flow inlet channel 116. A duct is arranged below the right filter 107. The duct is in groove fit with the fresh air middle housing 102 and the fresh air right housing 103 to prevent air leakage between the lower laminar flow inlet channel 115 and the upper laminar flow inlet channel 116. The left filter 106 and the right filter 107 are separated by the fresh air middle housing 102.

[0025] Secondly, the driving part is used to drive the rotation of the left air damper rotating shaft 109 or the right air damper driven gear 110. The left air damper rotating shaft 109 is connected to the left air damper 104, the right air damper driven gear 110 is connected to the right air damper 105, and both the left air damper rotating shaft 109 and the right air damper driven gear 110 are located outside the fresh air right housing 103.

[0026] Again, the motor fixing plate 111 is arranged on one side of the fresh air right housing 103 close to the left air damper rotating shaft 109, the fresh air motor 112 is arranged on the side of the motor fixing plate 111 away from the fresh air right housing 103, and the transmission member is used to transmit the driving force of the fresh air motor 112 to the left air damper rotating shaft 109 or the right air damper driven gear 110.

[0027] Meanwhile, the fresh air cam disc 113 is connected to the fresh air motor 112 and arranged on one side of the fresh air right housing 103 close to the fresh air motor 112. The left air damper rotating shaft 109 is movably arranged in the first track groove 117 of the fresh air cam disc 113. The right air damper driving gear 114 meshes with the right air damper driven gear 110 and is arranged on one side of the fresh air right housing 103 close to the fresh air motor 112, and the right air damper driving gear 114 is movably arranged in the second track groove 118 of the fresh air cam disc 113.

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

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

[0030] Finally, the closing plate 108 is detachably connected to the fresh air left housing 101, the fresh air middle housing 102 and the fresh air right housing 103 respectively, and is arranged outside the left filter screen 106 and the right filter screen 107 to close the left filter screen 106 and the right filter screen 107.

[0031] When using a double - 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 after receiving this control electrical signal. Thus, the power output by the output shaft of the fresh - air motor 112 drives the fresh - air cam disk 113 to rotate along the axis of the output shaft of the fresh - air motor 112. Furthermore, 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 on the fresh - air cam disk 113 rotates, it drives the right air - door driving gear 114 to rotate along its own axis, thereby driving the right air - door driven gear 110 to rotate, and further driving the right air - door 105 to rotate within the upper - layer air intake channel 116, achieving control over the opening or closing of the right air - door 105. When the second track groove 118 on the fresh - air cam disk 113 rotates, it drives the left air - door rotating shaft 109 to rotate along its own axis, thereby driving the left air - door 104 to rotate within the lower - layer air intake channel 115, achieving control over the opening or closing of the left air - door 104.

[0032] By adopting the left air - door 104 and the right air - door 105 in a double - half - moon shape, and arranging the left air - door 104 and the right air - door 105 in a left - right asymmetric and front - rear side - by - side manner, and then through the linkage of the control mechanism, the opening or closing of the left air - door 104 and the right air - door 105 is controlled to achieve the internal - circulation mode, the external - circulation mode, and the double - layer flow mode. Among them, in the internal - circulation mode, both the left air - door 104 and the right air - door 105 are opened; in the external - circulation mode, both the left air - door 104 and the right air - door 105 are closed; in the double - layer flow mode, the left air - door 104 is opened and the right air - door 105 is closed.

[0033] By making the air duct cooperate with the fresh - air middle housing 102 and the fresh - air right housing 103 through grooves, and adopting the combination of the left filter screen 106 and the right filter screen 107, the complete separation of the left side from the left - side air duct is achieved, avoiding the risk of air leakage between the lower - layer air intake channel 115 and the upper - layer air intake channel 116. Thus, the air - conditioner performance and comfort can be greatly improved. Moreover, it can achieve better air - conditioner refrigeration and heating effects in a limited space, solving the technical problems of the existing double - layer air intake box having a single inlet, with the fresh - air supply and the return - air supply sharing the same inlet, and the large space occupied by adding a flow - guiding plate for air - flow diversion and guidance.

[0034] The above disclosure is only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A double-layer air inlet structure for automobile air conditioner, characterized in that: It includes a left fresh air shell, a middle fresh air shell, a right fresh air shell, a control mechanism, a left air door, a right air door, a left filter and a right filter. The middle fresh air shell and the right fresh air shell are arranged in sequence from left to right outside the left fresh air shell. The left fresh air shell and the middle fresh air shell together constitute a lower laminar flow air inlet channel, and the middle fresh air shell and the right fresh air shell together constitute an upper laminar flow air inlet channel. The left air door and the right air door are respectively arranged in the lower laminar flow air inlet channel and the upper laminar flow air inlet channel. The control mechanism is used to control the opening and closing of the left air door and the right air door. The left filter and the right filter are respectively arranged below the lower laminar flow air inlet channel and the upper laminar flow air inlet channel.

2. The double-layer air inlet structure of the automobile air conditioner according to claim 1, characterized in that: The control mechanism includes a driving unit, a left damper shaft and a right damper driven tooth, the driving unit is used to drive the left damper shaft or the right damper driven tooth to rotate, the left damper shaft is connected to the left damper, the right damper driven tooth is connected to the right damper, and the left damper shaft and the right damper driven tooth are both located outside the fresh air right shell.

3. The double-layer air inlet structure of the automobile air conditioner according to claim 2, characterized in that: The driving part includes a motor fixing plate, a fresh air motor and a transmission component. The motor fixing plate is arranged on a side of the fresh air right shell body close to the left air door shaft, and the fresh air motor is arranged on a side of the motor fixing plate away from the fresh air right shell body. The transmission component is used to transmit the driving force of the fresh air motor to the left air door shaft or the right air door driven gear.

4. The double-layer air inlet structure for automobile air conditioner according to claim 3, characterized in that: The transmission component includes a fresh air cam plate and a right air door active tooth. The fresh air cam plate is connected to the fresh air motor and is arranged on a side of the fresh air right shell body close to the fresh air motor, and the left air door rotating shaft is movably arranged in a first track groove of the fresh air cam plate. The right air door active tooth is engaged with the right air door driven tooth and is arranged on a side of the fresh air right shell body close to the fresh air motor, and the right air door active tooth is movably arranged in a second track groove of the fresh air cam plate.

5. The double-layer air inlet structure for automobile air conditioner according to claim 4, characterized in that: The control mechanism controls the left damper and the right damper to realize an internal circulation mode, an external circulation mode and a double-layer flow mode.

6. The double-layer air inlet structure for automobile air conditioner according to claim 1, characterized in that: The left air door and the right air door are arranged asymmetrically from left to right, and the left air door and the right air door are arranged side by side front to back.

7. The double-layer air inlet structure for automobile air conditioner according to claim 1, characterized in that: The automobile air conditioner double-layer flow air inlet structure also includes a closing plate, which is detachably connected to the fresh air left shell, the fresh air middle shell and the fresh air right shell, and is arranged outside the left filter and the right filter.

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