CN1715647A

CN1715647A - Sealed compressor with noise reducing structure

Info

Publication number: CN1715647A
Application number: CN 200410019803
Authority: CN
Inventors: 李恩涉
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2004-06-28
Filing date: 2004-06-28
Publication date: 2006-01-04
Anticipated expiration: 2024-06-28
Also published as: CN100455795C

Abstract

The sealed compressor with noise reducing structure includes one main casing with electric driving mechanism to generate driving force and connected compressing mechanism to exhaust compressed fluid inside it; support bottom cover to cover the lower part of the main casing and to fix the main casing onto the installing structure; and tripod to support the bottom cover and to support and fix the main casing. The non-welding area of the tripod and around the bottom cover binding holes forms one notched structure, and this can avoid the foreign matter produced during welding to enter the fine cracks in the non-welding area and thus prevent abnormal noise.

Description

Hermetic compressor with noise reduction structure

One, technical field

The present invention relates to compressor, relate in particular to a kind of hermetic compressor (STRUCTURE FOR REDUCING NOISE OF HERMETICCOMPRESSOR) with noise reduction structure that can reduce the noise that causes owing to rubbing between the tripod of casing bottom and support machine casing.

Two, background technique

Existing hermetic compressor produces the motor drive mechanism of rotating force and utilizes the compressing mechanism of the powered compressor fluid of motor drive mechanism generation when being provided with turn-on power in the casing inside of sealing.And, be provided with in the casing bottom surface that tripod supports and fixing internal is provided with the casing of motor drive mechanism and compressing mechanism at described hermetic compressor, prevent that the noise that produces in motor drive mechanism or the compressing mechanism from passing in refrigerator or the air-conditioning.

As Fig. 1, Fig. 2, shown in Figure 3, existing hermetic compressor comprises: inside is provided with the casing 1 of the motor drive mechanism compressing mechanism of compressed fluid with being connected with motor drive mechanism that produces power; With the tripod (tri-plate) 2 of bottom surface at a distance of certain distance and supports compressor casing 1.Described casing 1 adopts the columnar structured of both ends open, and its inside is provided with bottom (bottom cap) 1c of the chassis body 1a of fixed motor structure and compressing mechanism, the top cover 1b that covers chassis body 1a top, covering bottom.When described tripod 2 carries out projection in the plane, form leg-of-mutton slab construction, the mounting hole 2a that the vibration-proof rubber (not have expression among the figure) that absorbs vibration can be installed is set on its summit, the bottom joining hole 2b that utilizes the welding method combination behind the bottom 1c of insertion compressor case 1 is set on its middle position.

That is, the bottom 1c of described compressor case 1 and tripod 2 in the periphery of bottom joining hole 2b at a distance of certain distance and solder bond as shown in Figure 3, is expressed 3 welding parts 3 that weld with section.As above behind the existing hermetic compressor turn-on power of Gou Chenging, but the mover entry into service in the motor drive mechanism, give compressing mechanism with transmission of power, like this, in compressing mechanism, piston moves back and forth or rotatablely moves, and draws, compresses and export a series of processes of refrigerant gas repeatedly.In such process, produce vibration in described motor drive mechanism and the compressing mechanism, and this vibration can be passed to and produced vibrating noise in the compressor case 1, and these noises can be set at the vibration-proof rubber that tripod 2 sharp corners of casing 1 downside are provided with and absorb.

But, in the existing hermetic compressor that as above constitutes, form welding part, 3 place 3 between the bottom 1c of casing 1 and the tripod 2, and the low-priced dirt (spatter) that produces in the welding process will enter within the slight gap of non-welding part, like this, when compressor operation, repeatedly and bottom 1c casing 1 contact with outer side surface with tripod 2, very easily produce extraordinary noise.

Three, summary of the invention

Main purpose of the present invention is to overcome the above-mentioned shortcoming that existing product exists, and a kind of hermetic compressor (STRUCTURE FOR REDUCING NOISE OFHERMETIC COMPRESSOR) that noise reduces structure that has is provided, it can reduce that foreign matter is invaded in the zone beyond the welding part between casing bottom and the tripod and the noise that produces.

The objective of the invention is to realize by following technological scheme.

The present invention has the hermetic compressor of noise reduction structure, comprising: inner the motor drive mechanism that produces driving force be installed and be connected the chassis body of the compressing mechanism of compression and discharge fluid with motor drive mechanism; Cover the casing lower body part and simultaneously chassis body is fixed on passive bottom on the mounting structure face; Be located at bottom supported underneath bottom, and the support and the fixing tripod of casing; It is characterized in that, also comprise the bigger foreign matter zone of spacing of discharging foreign matter, enter between bottom and the tripod in the zone beyond the welding part with the foreign matter that prevents low-priced dirt that bottom and tripod when welding produces etc.

Aforesaid hermetic compressor with noise reduction structure is characterized in that, described foreign matter zone is that the sagging structure that forms by the non-welding part of tripod is absorbed in certain depth downwards constitutes.

Aforesaid hermetic compressor with noise reduction structure is characterized in that, described foreign matter zone is to constitute by the non-welding part of bottom being absorbed in the sagging structure that certain depth forms downwards.

Four, description of drawings

Fig. 1 is that existing compressor arrangement decomposes the stravismus schematic representation.

Fig. 2 is a local section schematic representation shown in Figure 1.

Fig. 3 is that existing compressor bottom cap is installed in the floor map on the tripod.

Fig. 4 is that the present invention has the decomposition stravismus schematic representation that noise reduces the hermetic compressor of structure.

Fig. 5 is a local section schematic representation shown in Figure 4.

Fig. 6 is the floor map that bottom is set on the tripod of the present invention's design.

Main label declaration among the figure:

101 casings, 102 tripods, 102b " structure, 111 chassis bodies, 113 bottoms sink.

Five, embodiment

Hermetic compressor with noise reduction structure provided by the invention, hermetic compressor comprises: inner the motor drive mechanism that produces driving force be installed and be connected with motor drive mechanism, the chassis body of the compressing mechanism of compression and discharge fluid, cover the casing lower body part and simultaneously chassis body is fixed on passive bottom on the mounting structure face, be arranged on bottom below and support bottom, and the support and the fixing tripod of casing; In order to prevent that foreign matters such as low-priced dirt that bottom and tripod when welding produce from entering in the zone beyond the welding part between bottom and the tripod, setting has the hermetic compressor of noise reduction structure, and the feature of this noise reduction structure is the bigger foreign matter zone of spacing that can discharge foreign matter.

Below, the hermetic compressor with noise reduction structure of explanation the present invention design that the embodiment in is detailed in conjunction with the accompanying drawings.

As Fig. 4, Fig. 5, shown in Figure 6, hermetic compressor with noise reduction structure of the present invention design comprises: inner produce the motor drive mechanism of power when turn-on power being set when forming certain containing space and utilize the power draw refrigerant gas of motor drive mechanism after the casing 101 of compressing mechanism of compression and output, be located at that casing 101 downsides support and fixing casing 101 and reduce the tripod 102 of the vibration that casing 101 produces.

Described casing 101 adopts columnar project organization, and it comprises: the chassis body 11 of fixed motor structure and compressing mechanism together, cover the top cover 112 of chassis body 11 tops, and cover the bottom 113 of chassis body 111 lower ends; Tripod 102 can constitute equilateral triangle for its housing line when the plane projection, and base 102a is set, and is provided with on the base 102a middle position and can partly inserts the fixing bottom joining hole 102b of bottom 113 downsides.

Being provided with of described base 102a is highly corresponding with the height that forms bottom joining hole 102b position, forms the mounting hole 102c that casing 101 holders can be placed the vibration-proof rubber of absorption vibration in certain altitude near each summit.

Under the state of bottom 113 bottoms insertion, formation other positions except that welding part 102b ', periphery of described bottom joining hole 102b are absorbed in the sagging structure 102b of certain depth downwards "; so that and form than large space between the bottom surface 113a of bottom 113, prevent within the slit between foreign matter intrusion bottom 113 and the bottom joining hole 102b.

Described sagging structure 102b " should be towards the center portion and downward-sloping several angle (θ); thus when welding or carry out other operations; make the foreign matter of generation flow into the structure 102b that sink " inside move down along the plane of inclination, thereby avoid the structure 102b that sink " inside assemble foreign matter.

The hermetic compressor with noise reduction structure of the present invention's design has following technique effect.

During the motor drive mechanism turn-on power of compressor, motor drive mechanism produces power, and power is sent on the compressing mechanism, the piston of compressing mechanism moves back and forth or rotatablely moves in cylinder interior thus, a series of processes of carrying out draw refrigerant gas and compression repeatedly and discharging; At this moment, can produce noise when motor drive mechanism and compressing mechanism operation, these noises pass to the vibration-proof rubber 102 that is set on the tripod 102 behind the casing 101 and absorb, and therefore most noise all can be eliminated.

And, carry out the low-priced dirt that produces in the welding process or the foreign matter that in other processes, produces at bottom 113 and tripod 102 and can flow into non-welding region between bottom 113 and the tripod 102, because the sagging structure 102b that forms on the tripod 102 "; formed bigger space between the outer side surface of tripod 102 and bottom 113; so foreign matter can not sandwich inside; and along the structure 102b that sink " the plane of inclination slide, like this, foreign matter can not sandwich the non-welding part between bottom 113 and the tripod 102, thereby avoids foreign matter to invade and the extraordinary noise that causes.

In the above-described embodiment, for the structure 102b that will sink " embodiment that is arranged on the tripod 102 is illustrated, and described sagging structure 102b " can also be arranged on the inboard of bottom 113.

The beneficial effect of the hermetic compressor with noise reduction structure of the present invention's design is: make the non-welding part of the bottom joining hole periphery of tripod be absorbed in certain depth downwards and form sagging structure, therefore the non-welding part that does not carry out solder flux when bottom and tripod welding has formed the bigger foreign matter zone of spacing by sagging structure, thereby the foreign matter that produces when foreign matter that has produced when having prevented the welding of bottom and tripod or assembling enters in the fine gap of non-welding part, effectively avoids owing to foreign matter is invaded the extraordinary noise that causes.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of hermetic compressor with noise reduction structure comprises: inner the motor drive mechanism that produces driving force be installed and be connected the chassis body of the compressing mechanism of compression and discharge fluid with motor drive mechanism; Cover the casing lower body part and simultaneously chassis body is fixed on passive bottom on the mounting structure face; Be located at bottom supported underneath bottom, and the support and the fixing tripod of casing; It is characterized in that, also comprise the bigger foreign matter zone of spacing of discharging foreign matter, enter between bottom and the tripod in the zone beyond the welding part with the foreign matter that prevents low-priced dirt that bottom and tripod when welding produces etc.

2, the hermetic compressor with noise reduction structure according to claim 1 is characterized in that, described foreign matter zone is that the sagging structure that forms by the non-welding part of tripod is absorbed in certain depth downwards constitutes.

3, the hermetic compressor with noise reduction structure according to claim 1 is characterized in that, described foreign matter zone is to constitute by the non-welding part of bottom being absorbed in the sagging structure that certain depth forms downwards.