Pressure switch and refrigerating system comprising same

A pressure switch and elastic sheet technology, applied in electrical switches, electrical components, circuits, etc., can solve problems such as damage and deformation of spring sheet diaphragms, and achieve the effects of expanding the scope of use, fast speed, and improving pressure resistance.
CN105070588AInactive Publication Date: 2015-11-18GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
10 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
GD MIDEA HEATING & VENTILATING EQUIP CO LTD
Publication Date
2015-11-18
Estimated Expiration
Not applicable ยท inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a pressure switch and a refrigerating system comprising the same. The pressure switch comprises an outer shell, a first plugging piece, a second plugging piece, an elastic piece, a push rod, a membrane and a limiting member, wherein the first plugging piece and the second plugging piece are arranged inside the outer shell in a spaced manner, and a static contact is arranged on the first plugging piece; the elastic piece is arranged on the second plugging piece, one end of the elastic piece is connected with the second plugging piece, the other end is provided with a moving contact, and a second end of the elastic piece is movable so that the moving contact can be in contact with or separated from the static contact; the push rod is arranged inside the outer shell in a movable manner for pushing the other end of the elastic piece to move; the membrane is arranged inside the outer shell in a telescopic manner, and at least part of the membrane is pressed against the push rod for pushing the push rod to move; and the limiting piece is arranged inside the outer shell for limiting telescopic distance of the membrane. According to the pressure switch, the compression resistance of the pressure switch is improved, the application range of the pressure switch is enlarged, and the production efficiency is increased.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of refrigeration equipment, and more specifically, to a pressure switch and a refrigeration system having the same. Background technique

[0002] Pressure switches are mainly used in refrigeration systems such as air conditioners for pressure protection. Pressure protection can be divided into over-high pressure protection and over-low pressure protection. Over-high pressure protection is to protect the pressure in the system from exceeding the maximum safe pressure required by the system (to prevent bursting and leakage); over-low pressure protection is to protect the pressure in the system from not lower than the minimum safe pressure required by the system (to prevent the compressor from vacuuming). There are two types of pressure switches commonly used today. Their basic structures are the same, and they are composed of the following parts: wires, springs, push rods, diaphragms, covers, copper tubes, mo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More