Unlock instant, AI-driven research and patent intelligence for your innovation.

Air-tight compressor thermal protector

A thermal protector and compressor technology, which is applied to machines/engines, emergency protection circuit devices, mechanical equipment, etc., can solve the problem that high current models are not suitable, the internal thermal protector is difficult to assemble, and the external thermal protector problems such as poor heat transfer of the device, so as to achieve the effect of improving assembly efficiency and production efficiency

Inactive Publication Date: 2009-12-23
周娟
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the existing built-in and external thermal protectors, the present invention designs a sealed compressor thermal protector, which has the same effect as the built-in thermal protector for compressor protection and is directly installed on the compressor shell Outside the body, on the one hand, it can solve the problem of difficult assembly of the internal thermal protector, and on the other hand, it can solve the problem of loosening of the built-in thermal protector due to the operation of the compressor. At the same time, the protective effect is exactly the same as that of the built-in thermal protector. Applicable to current models, solving the problem of poor heat transfer of external thermal protectors that lead to inapplicable limitations of high-current models

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Air-tight compressor thermal protector
  • Air-tight compressor thermal protector
  • Air-tight compressor thermal protector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The present invention designs a kind of novel thermal protector (as Figure 3a ), which includes a housing 8, a conductive column 1, a heat-sensitive disc 9, a contact 7, an insert 2, a protection device 11, a baffle 10 and a heating device 5, and is set in the insulating housing 8 of the protector 12 There is a heating device 5, and the metal airtight cavity is composed of an upper welding plate 4 and a shell cavity 6, and the inside is vacuumized and a protective gas is introduced to prevent arcing when energized. The lead-out terminal 1 is in the shape of a conductive column, and the two lead-out terminals 1 respectively pass through the upper welding plate 4 of the metal airtight cavity, and are welded into one body with the upper welding plate 4 of the metal airtight cavity through a molten body. The melt is a hardenable electrically insulating material. The inside of the metal airtight cavity is installed with a heat-sensitive disc 9, a contact 7, and a protectio...

Embodiment 2

[0019] Figure 4a For another structural form of the thermal protector of the present invention, the thermal protector is installed outside the compressor housing 14 (such as Figure 4 ), the thermal protector is directly installed on the sealing terminal 15 of the compressor. This installation method is a new wiring method. Compared with the current external thermal protector wiring method, it can save a thermal protector connected to the sealing terminal After adopting this wiring method, the motor wire does not need to be directly installed on the thermal protector, and the danger of discharge caused by the contact between the motor wire and the compressor exhaust pipe can also be avoided. After adopting this wiring method, the structural design of the thermal protector has a certain change compared with the existing thermal protector design. At this time, the conductive column 1 of the thermal protector runs through a closed cavity formed by the upper welding plate 4 and t...

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

PUM

No PUM Login to View More

Abstract

The invention relates to a sealing-type compressor heat protector, which can be used in the overload protection of sealing compressor with one compress device and one sealing frame of refrigeration gas, wherein a heat for preparing the temperature-constant condition inside the frame is mounted inside or outside the frame of heat protector; the frame of heat protector includes heater and metallic chamber, while the heating fuse, insertion plate and metal cover are integrated on the upper part and the inner part of frame; said protector can be mounted outside the frame to improve the producing efficiency, while its protection ability is equal with present internal protector.

Description

technical field [0001] The invention relates to a compressor overheat protection device, in particular to a hermetic compressor thermal protector, which belongs to the technical field of refrigeration. Background technique [0002] The existing compressors all use thermal protectors to protect the compressor motor from overload operation. The current thermal protectors include thermal protectors installed outside the compressor casing (external thermal protectors) and inside the compressor casing. There are two types of thermal protectors (built-in thermal protectors) installed, and their working principles are basically the same. They are all in the sealed electric compressor, and a thermal switch with a bimetallic sheet is used to protect the motor from overheating due to overload. Since the built-in thermal protector is installed inside the compressor and directly contacts the refrigerant, it is more sensitive to temperature induction than the external thermal protector, ...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F04C28/28F04B49/10H02H7/08H01H37/72
Inventor 周娟
Owner 周娟