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CN-117627902-B - Pump mechanism and electronic equipment

CN117627902BCN 117627902 BCN117627902 BCN 117627902BCN-117627902-B

Abstract

A pumping mechanism comprises an air inlet chamber, a pumping chamber, an air inlet valve clack, an air outlet valve clack and a pumping piece. The pump air chamber is communicated with the air inlet chamber and comprises a first chamber wall and a second chamber wall, the first chamber wall comprises a first plate and a second plate which is arranged opposite to the first plate at intervals, the first plate is provided with a first opening in a penetrating mode, and the second plate is provided with a second opening in a penetrating mode. The second chamber wall comprises a third plate and a fourth plate which is arranged opposite to the third plate at intervals, the third plate is provided with a third opening in a penetrating way, and the fourth plate is provided with a fourth opening in a penetrating way. The air inlet valve flap is movably accommodated between the first plate and the second plate, and the projection of the first opening is positioned in the air inlet valve flap along the direction from the first plate to the second plate, and the projection of the air inlet valve flap is positioned in the second opening. The exhaust valve flap is movably accommodated between the third plate and the fourth plate, the projection of the third opening is positioned in the exhaust valve flap from the third plate to the fourth plate, and the projection of the exhaust valve flap is positioned in the fourth opening. The pumping piece is communicated with the pumping chamber. In addition, the application also provides electronic equipment.

Inventors

  • HUANG BAIXIANG

Assignees

  • 三赢科技（深圳）有限公司

Dates

Publication Date
20260508
Application Date
20220809

Claims (10)

  1. 1. A pumping mechanism, comprising: the air inlet chamber is provided with an air inlet and a detection opening, and the air inlet is communicated with the external environment; The air pumping chamber is communicated with the air inlet chamber and comprises a first chamber wall and a second chamber wall, the first chamber wall comprises a first plate and a second plate which is arranged opposite to the first plate at intervals, the first plate is provided with a first opening in a penetrating mode, the second plate is provided with a second opening in a penetrating mode, the second chamber wall comprises a third plate and a fourth plate which is arranged opposite to the third plate at intervals, the third plate is provided with a third opening in a penetrating mode, the fourth plate is provided with a fourth opening in a penetrating mode, the detection opening is arranged between the air inlet and the first opening, and the fourth opening is communicated with the external environment; the air inlet valve clack is movably accommodated between the first plate and the second plate, the projection of the first opening is positioned in the air inlet valve clack in the direction from the first plate to the second plate, and the projection of the air inlet valve clack is positioned in the second opening; A third plate, a fourth plate, a vent flap movably received between the third plate and the fourth plate, a projection of the third opening being located in the vent flap and a projection of the vent flap being located in the fourth opening, and And the pumping piece is communicated with the pumping chamber and is used for compressing or expanding the gas of the pumping chamber.
  2. 2. The pumping mechanism of claim 1, wherein the pumping member comprises an elastic member and a sealing sleeve, the sealing sleeve being in close contact with the pumping chamber, the elastic member being held against between the sealing sleeve and the pumping chamber.
  3. 3. The pumping mechanism of claim 1, wherein the first chamber wall further comprises a first baffle, a portion of the second plate extending toward the second aperture to form the first baffle, a projection of the first baffle being located within the intake valve flap in a direction from the first plate to the second plate.
  4. 4. The pumping mechanism of claim 1, wherein the second chamber wall further comprises a second baffle, a portion of the fourth plate extending toward the fourth aperture to form the second baffle, a projection of the second baffle being located within the exhaust valve flap from the third plate toward the fourth plate.
  5. 5. The pumping mechanism of claim 1, wherein the first opening is disposed in a direction from the first plate to the second plate, the first opening is disposed in a direction from the third plate to the fourth plate, and the third opening is disposed in a direction from the first plate to the second plate.
  6. 6. The pumping mechanism of claim 5, wherein the inlet chamber comprises a housing and a lid associated with the housing, the inlet opening is provided in the lid, and the detection opening is provided in the housing.
  7. 7. The pumping mechanism of claim 6, wherein the pumping chamber further comprises a bottom plate, a top plate, and side plates, the bottom plate and the top plate being disposed opposite and spaced apart, the side plates, the first chamber wall, and the second chamber wall being disposed around and between the bottom plate and the top plate to form the pumping chamber, a portion of the pumping member protruding from the top plate.
  8. 8. The pumping mechanism of claim 1, wherein the intake valve flap comprises a first surface and a second surface, the first surface being disposed convex away from the second surface, the second surface being disposed concave toward the first surface, the first aperture corresponding to the first surface, the second aperture corresponding to the second surface.
  9. 9. The pumping mechanism of claim 1, wherein the exhaust valve flap comprises a third surface and a fourth surface, the third surface being convexly disposed away from the fourth surface, the fourth surface being concavely disposed toward the third surface, the third aperture corresponding to the third surface, the fourth aperture corresponding to the fourth surface.
  10. 10. An electronic device comprising a selectively permeable membrane, an odor sensor and a pumping mechanism according to any one of claims 1 to 9, wherein the selectively permeable membrane is disposed on the odor sensor, and the selectively permeable membrane is disposed corresponding to the detection opening.

Description

Pump mechanism and electronic equipment Technical Field The present disclosure relates to air pumping devices, and particularly to an air pumping device with an air pumping structure. Background The odor molecule detection technology is mainly implemented by using an odor sensor. The odor sensor needs to be covered with a selectively permeable membrane through which certain volatile small organic molecules can pass and be detected by the odor sensor. In general, to increase the detection efficiency of small volatile organic molecules, the odor sensor together with the permselective membrane needs to be exposed to the flowing gaseous environment to be measured, but this approach is prone to contaminating and damaging the permselective membrane or the odor sensor. Disclosure of Invention In order to solve the problems in the background technology, the application provides a pumping mechanism. In addition, the application also provides electronic equipment. A pumping mechanism comprises an air inlet chamber, a pumping chamber, an air inlet valve clack, an air outlet valve clack and a pumping piece. The inlet chamber is provided with an inlet and a detection opening. The pump air chamber is communicated with the air inlet chamber, the pump air chamber comprises a first chamber wall and a second chamber wall, the first chamber wall comprises a first plate and a second plate which is arranged at intervals opposite to the first plate, the first plate is provided with a first opening in a penetrating mode, the second plate is provided with a second opening in a penetrating mode, the second chamber wall comprises a third plate and a fourth plate which is arranged at intervals opposite to the third plate, the third plate is provided with a third opening in a penetrating mode, the fourth plate is provided with a fourth opening in a penetrating mode, and the detection opening is formed between the air inlet and the first opening. The air inlet valve flap is movably accommodated between the first plate and the second plate, the projection of the first opening is positioned in the air inlet valve flap, and the projection of the air inlet valve flap is positioned in the second opening in the direction from the first plate to the second plate. The exhaust valve clack is movably accommodated between the third plate and the fourth plate, the projection of the third opening is positioned in the exhaust valve clack, and the projection of the exhaust valve clack is positioned in the fourth opening in the direction from the third plate to the fourth plate. The pumping piece is communicated with the pumping chamber and is used for increasing or decreasing the gas pressure of the pumping chamber. Further, the pumping piece comprises an elastic piece and a sealing sleeve, the sealing sleeve is closely connected with the pumping air chamber, and the elastic piece is propped between the sealing sleeve and the pumping air chamber. Further, the first chamber wall further includes a first baffle, a portion of the second plate extends toward the second aperture to form the first baffle, a projection of the first baffle is located within the intake valve flap in a direction from the first plate to the second plate. Further, the second chamber wall further includes a second baffle, a portion of the fourth plate extending toward the fourth aperture to form the second baffle, a projection of the second baffle being located within the exhaust valve flap in a direction from the third plate to the fourth plate. Further, the first opening is arranged corresponding to the second opening in a direction from the first plate to the second plate, and the third opening is arranged corresponding to the fourth opening in a direction from the third plate to the fourth plate. Further, the air inlet chamber comprises a box body and a box cover matched with the box body, the air inlet is formed in the box cover, and the detection opening is formed in the box body. Further, the pumping chamber further comprises a bottom plate, a top plate and side plates, the bottom plate and the top plate are arranged at intervals, the side plates, the first chamber walls and the second chamber walls are arranged between the bottom plate and the top plate in a surrounding mode to form the pumping chamber, and part of pumping parts protrude out of the top plate. Further, the intake valve flap includes a first surface and a second surface, the first surface protrudes away from the second surface, the second surface is concavely disposed toward the first surface, the first opening corresponds to the first surface, and the second opening corresponds to the second surface. Further, the exhaust valve comprises a third surface and a fourth surface, the third surface is arranged to face away from the fourth surface in a protruding mode, the fourth surface is arranged to face inwards towards the third surface in a concave mode, the third opening corresponds to the third surface, and