Protection mechanism of junction box of refrigeration compressor

Abstract

The invention relates to a protection mechanism of a junction box of a refrigeration compressor, belonging to the technical field of refrigeration compressors. The refrigeration compressor comprises a refrigeration compressor body and an electrical insulation cover, wherein the refrigeration compressor body comprises the junction box with a box holder; the protection mechanism of the junction box comprises a flameproof enclosure; the flameproof enclosure is sleeved outside the box holder and is fixed with the box holder; and the electrical insulation cover is combined on the inner wall of a flameproof enclosure cavity of the flameproof enclosure. The protection mechanism of the junction box of the refrigeration compressor has the advantages that: influences caused by external environments such as dust, moisture, mice and / or cockroaches and domestic pets on the junction box can be avoided; when fire occurred due to lightning stroke, supply voltage jump, sudden rise of ambient temperature and / or abnormality of electronic parts and components, the flameproof enclosure plays a role in isolation, so that larger fire caused by fire spread is avoided, and the safety is ensured; and the electrical insulation cover is additionally arranged on the inner wall of the flameproof enclosure cavity of the flameproof enclosure, so that accidents caused by leakage of electricity can be avoided, and the safety is ensured.

Description

technical field [0001] The invention belongs to the technical field of refrigeration compressors, and in particular relates to a protection mechanism for a junction box of a refrigeration compressor. Background technique [0002] As is well known in the industry, refrigeration compressors used in electrical appliances such as refrigerators, freezers, and food refrigerated display cabinets need to install accessories such as starters and overload protectors outside the body, and are connected to the power supply by wiring. Therefore, a junction box is usually arranged on the compressor, and the junction box can ensure the neat assembly of the system, and can also prevent the aforementioned accessories and wiring from being affected by the external environment, so as to ensure the working reliability of the compressor. [0003] In the published Chinese patent literature, there is no lack of technical content about the junction box of refrigerator compressors. A typical example...

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Problems solved by technology

[0004] is not limited to the common features of the junction boxes of refrigerator compressors in the prior art cited above, all for its own structure, although each has its own The bumps or technical effects, but at least there are disadvantages of lack of safety and loss of insulation, because in the actual working process of household appliance compressors, sometimes extreme abnormal conditions are encountered, such as lightning strikes, power supply voltage overvoltage, etc. High temperature, high ambient temperature and / or abnormal failure of electronic components, etc. At this time, the accessories and wiring system in the electrical junction box of the compressor may catch fire, and the small fire in the junction box will often break through the junction box The box cover and box body, so that the fire spread outwards, causing a larger fire that people do not want to appear

Although the probability of this situation is low, and it is only possible in extreme cases, there are not uncommon reports of this situation in reality, causing losses to users and extremely adverse effects on manufacturers

In addition, once the connectors and electrical lines in the junction box are abnormal, it is easy to cause leakage accidents.

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