CN-122014907-A - Memory alloy pneumatic controller for strengthening heat dissipation

Abstract

The application provides a memory alloy pneumatic controller for strengthening heat dissipation, which comprises a shell, a valve body assembly, a valve core unit, an exhaust device and an air exhaust device, wherein a containing cavity is formed in the shell, an air inlet and an air outlet are formed in the shell, the valve body assembly is arranged in the containing cavity and is provided with an air charging port and a plurality of independent air charging ports, each air charging port is correspondingly provided with the valve core unit, each valve core unit is connected with an independent memory alloy wire, the memory alloy wires are configured to be thermally actuated to provide deflection force for the valve core unit, the exhaust device is arranged in the containing cavity, an air inlet end of the exhaust device is communicated with the containing cavity, an air outlet end of the exhaust device faces towards the air outlet, an air inlet surface is formed on the outer wall of the shell corresponding to the air outlet, an air outlet hole is formed in the shell in the area of the air inlet surface, the exhaust device is used for sucking air in the containing cavity and discharging the air through the air inlet end, and the discharged air flows along the air inlet surface to form pressure difference on two sides of the air outlet hole. The controller provided by the application can suck hot air in the shell by utilizing the coanda effect, so as to realize active heat dissipation.

Inventors

• ZHANG XIAO
• SUN HAITAO

Assignees

• 安闻科技集团股份有限公司

Dates

Publication Date

20260512

Application Date

20260331

Claims (10)

1. 1. A memory alloy pneumatic controller for enhancing heat dissipation, comprising: The device comprises a shell (2), wherein a containing cavity (6) is formed in the shell (2), and an air inlet (3) and an air outlet (4) are formed in the shell (2); The valve body assembly is arranged in the accommodating cavity (6), and is provided with an air charging port and a plurality of independent air vents, and each air vent is correspondingly provided with a valve core unit; the air exhaust device (5) is arranged in the accommodating cavity (6), the air inlet end of the air exhaust device (5) is communicated with the accommodating cavity (6), and the air outlet end faces the air outlet (4); An air inducing surface (8) is formed on the outer wall of the shell (2) corresponding to the air outlet (4), and an air outlet hole (7) is formed in the shell (2) located in the area of the air inducing surface (8); The exhaust device (5) sucks the air in the accommodating cavity (6) into the exhaust device (5) through the air inlet end, and discharges the air through the air outlet end, and the discharged air flows along the air inducing surface (8) to form pressure difference at two ends of the air outlet hole (7).
2. 2. The memory alloy pneumatic controller for strengthening heat dissipation according to claim 1, wherein the air guiding surface (8) is provided with an air guiding wall (9), and the air guiding wall (9) is used for guiding the air flow exhausted from the air outlet end to the air outlet hole (7).
3. 3. The memory alloy pneumatic controller for strengthening heat dissipation according to claim 2, wherein a plurality of air guide walls (9) are provided, the plurality of air guide walls (9) are arranged along a first direction and extend along a second direction, the second direction is the air outlet direction of the air outlet end, the first direction is perpendicular to the second direction and parallel to the air guiding surface (8), air guide channels (16) are formed between adjacent air guide walls (9), and at least one air outlet hole (7) is formed in each air guide channel (16).
4. 4. The memory alloy pneumatic controller for strengthening heat dissipation according to claim 3, wherein a convex diversion curved surface (10) is arranged on the air inducing surface (8) corresponding to each air guiding channel (16), the diversion curved surface (10) is connected with two adjacent air guiding walls (9), and the diversion curved surface (10) is positioned on one side of the air outlet (7) far away from the air outlet (4) and is in smooth transition with the edge of the air outlet (7).
5. 5. The memory alloy pneumatic controller for strengthening heat dissipation according to claim 3, wherein a convex diversion curved surface (10) is arranged on the air inducing surface (8) corresponding to each air guiding channel (16), the diversion curved surface (10) is connected with two adjacent air guiding walls (9), and the diversion curved surface (10) is positioned on one side of the air outlet (7) close to the air outlet (4) and is in smooth transition with the edge of the air outlet (7).
6. 6. The memory alloy pneumatic controller for strengthening heat dissipation according to claim 4 or 5, wherein at least one retaining wall (11) is further arranged on the air inducing surface (8) corresponding to each air guide channel (16), a gap is arranged between the retaining wall (11) and the air guide wall (9), the retaining wall (11) is arranged on one side, close to the air outlet (4), of the air outlet (7) and is provided with an arc surface, open towards the air, away from the air outlet (4), and at least one air supplementing hole (12) is formed between the air outlet (7) and the retaining wall (11) by the shell (2).
7. 7. The memory alloy pneumatic controller for strengthening heat dissipation according to claim 1, wherein a circuit board (17) is further arranged in the accommodating cavity (6), an electric control module for controlling the on-off of the memory alloy wire (1) is integrated on the circuit board (17), and a wind through hole (18) is formed in the circuit board (17).
8. 8. The memory alloy pneumatic controller for strengthening heat dissipation according to claim 1, wherein a guiding surface (13) is arranged at one end of the edge of the air inducing surface (8) near the air exhausting device (5), and the guiding surface (13) guides to the inside of the accommodating cavity (6).
9. 9. A memory alloy pneumatic controller for enhancing heat dissipation according to claim 3, wherein the housing (2) comprises a first side shell (14) and a second side shell (15) which are detachably connected, and the air outlet (4) and the air inducing surface (8) are arranged on the second side shell (15).
10. 10. The memory alloy pneumatic controller for strengthening heat dissipation according to claim 9, wherein the first side shell (14) and the second side shell (15) are provided with a plurality of air inlets (3), and the plurality of air inlets (3) and the plurality of memory alloy wires (1) are arranged along the second direction.

Description

Memory alloy pneumatic controller for strengthening heat dissipation Technical Field The invention belongs to the technical field of vehicle seat accessories, and particularly relates to a memory alloy pneumatic controller capable of enhancing heat dissipation. Background With the continuous upgrade of the intelligent and comfort configuration of the automobile cabin, the functions of massaging and supporting the automobile seat become an important component for improving the riding experience. Under long-distance driving or long-time riding scenes, the seat massage system can effectively relieve the fatigue of the waist and back muscles of drivers and passengers, and reduce the risk of fatigue driving, and the seat support and adjustment system can ensure that the seat has better supportability and wrapping property, so that the two functions are widely applied to high-end and medium-high-end vehicle types. As the core executive component of the seat massage and support adjusting system, the pneumatic controller is responsible for precisely controlling the on-off of the air channel, and the working stability of the pneumatic controller directly influences the continuity and reliability of the massage and support adjusting function. The existing pneumatic controller drives the valve core unit to act in an electric control mode so as to realize independent control of a plurality of air supply ports. However, when the controller operates for a long time, a large amount of heat is generated by the internal driving element due to frequent work, the internal driving element is limited by compact internal structure layout and unsmooth heat dissipation path, the heat is easy to accumulate in the shell, the cooling recovery time of the driving element is prolonged, and even misoperation or failure of the controller is caused when the cooling recovery time is serious, so that the normal use of the massage and support adjusting functions is influenced. Disclosure of Invention In view of the foregoing drawbacks and disadvantages of the prior art, the present invention provides a memory alloy pneumatic controller with enhanced heat dissipation, comprising: The shell is internally provided with a containing cavity, and the shell is provided with an air inlet and an air outlet; The valve body assembly is arranged in the accommodating cavity, and is provided with an air charging port and a plurality of independent air vents, and each air vent is correspondingly provided with a valve core unit; The air exhaust device is arranged in the accommodating cavity, the air inlet end of the air exhaust device is communicated with the accommodating cavity, and the air outlet end faces the air outlet; the shell corresponds to the outer wall of the air outlet to form an air inducing surface, and an air outlet hole is formed in the shell in the area of the air inducing surface; The exhaust device sucks the gas in the accommodating cavity into the exhaust device through the air inlet end and discharges the gas through the air outlet end, and the discharged gas flows along the air inducing surface to form pressure difference at two sides of the air outlet hole. According to the technical scheme provided by the invention, the air guiding wall is arranged on the air guiding surface and is used for guiding the air flow exhausted from the air outlet end to the air outlet hole. According to the technical scheme provided by the invention, a plurality of air guide walls are arranged along a first direction and extend along a second direction, the second direction is the air outlet direction of the air outlet end, the first direction is perpendicular to the second direction and parallel to the air guiding surface, air guide channels are formed between adjacent air guide walls, and at least one air outlet hole is formed in each air guide channel. According to the technical scheme provided by the invention, the air guiding surfaces are provided with the convex guide curved surfaces corresponding to each air guiding channel, the guide curved surfaces are connected with two adjacent air guiding walls, and the guide curved surfaces are positioned on one side of the air outlet far away from the air outlet and are in smooth transition with the edges of the air outlet. According to the technical scheme provided by the invention, the air guiding surfaces are provided with the convex guide curved surfaces corresponding to each air guiding channel, the guide curved surfaces are connected with two adjacent air guiding walls, and the guide curved surfaces are positioned on one side of the air outlet close to the air outlet and are in smooth transition with the edges of the air outlet. According to the technical scheme provided by the invention, at least one retaining wall is arranged on the air inducing surface corresponding to each air guide channel, a gap is arranged between the retaining wall and the air guide wall, the retaining wall is arranged on one s