KR101750291B1 - Suction and emission structure for medical with noise prevention - Google Patents

Abstract

The present invention improves the structure so as to minimize various kinds of noise and vibration generated by the operation of a compressor that operates to suck or discharge air for treating a patient and prevent an internal overheating, thereby providing a comfortable environment for treatment. And more particularly, to a medical suction and discharge device having a noise prevention function.
The present invention relates to an air conditioner comprising an upper case and a lower case divided and formed so as to receive and fix the compressor therein and to facilitate separation and assembly, and a lower case having an air passage, A quadrangular pyramidal and triangular quadrangular noise absorbing portion is provided on the remaining bottom surface and the inner vertical surface of the quadrangular pyramid; A buffer support member screwed to a bottom surface around the air passage of the lower case and coupled to a support on all four sides of the compressor and then tightened with a nut to damp vibration of the compressor; Wherein the air passage formed in the lower case is provided by a circular tube protruding upward from a bottom surface; A noise barrier is formed by a partition wall which surrounds the circumferential surface of the circular tube and serves as a fence and a cover provided with a passage for moving air between the partition wall and the circular tube in a zigzag manner.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a medical suction /

The present invention relates to a medical suction and discharge apparatus, and more particularly, to a medical suction and discharge apparatus for minimizing various noise and vibration generated by operation of a compressor that operates to suck or discharge air for patient treatment, And more particularly, to a medical suction and discharge apparatus having a noise prevention function that improves the structure thereof so as to provide a comfortable environment for treatment.

Generally, a suction device and / or a discharge device (supply device) using air to treat a patient is used, and the devices use a compressor to suck or discharge air (air), which is exposed Or placed inside the case.

In order to prevent the disease of the elderly, the elderly, or the patient who is inconvenient to live in the bed lying on the bed, As shown in FIG.

However, since the compressor generates severe vibration and / or noise during the process of sucking in air and compressing and discharging the compressed air, there is a problem that the patient is not only sensitive to noise but also stresses the caregiver. In particular, There is a problem that a comfortable sleep can not be taken.

For example, Korean Patent No. 10-0439330 (published on Jul. 7, 2004) discloses a medical suction device, which comprises a pair of cylinders crank-connected to a driving shaft of a driving portion and alternately operated, and an intake / The drive unit includes a drive deceleration unit including a worm driven by an electric motor shaft and a worm gear engaged with the worm, And the cylinders are crank-connected to be alternately operated on both sides of the worm gear coaxially. The medical suction unit reduces the generation of noise by coupling the worm and the worm gear to the moving part of the cylinder. However, since the medical suction unit is exposed to the outside, its own vibration and noise are transmitted to the patient.

In order to solve the above problem, a vacuum pump case for preventing vibration and noise has been proposed in Korean Patent No. 10-0764126 (Oct. 10, 2007), which is a structure for mutually coupling upper and lower cases And an air discharge port in which a packing, which is a noise absorbing material, is disposed in the case, so that vibration and noise generated from the vacuum pump can be prevented without mounting a separate silencer. In the vacuum pump case, the noise and vibration generated from the vacuum pump hit the inside of the sealed case first, then hit the main body of the vacuum pump, the noise is reduced in the second order and the remaining noise is passed through the packing, which is the noise absorbing material, However, since the reduction in noise is small only by colliding with the inner wall of the case or the body of the vacuum pump, and the speed of air movement increases when the air escapes to the small air outlet, the noise is reduced There is an increasing problem.

In addition, a domestic registered utility model No. 20-0322561 (issued on Aug. 2003, 2003) entitled " Air suction and discharge device for medical air floating mattress " is a device for mounting a hose on the hose connecting the air- The first filter unit and the Y-shaped valve are connected to each other on the hose connecting the air outlet port of the PBT with the air inlet port on the lower side of the wind tunnel. The air suction and discharge device is equipped with a filter on the air circulation passage to remove dust contained in the air to reduce noise generated by the dust, And there is no constituent part for vibration and noise reduction generated from the air pump itself, so that noise can not be effectively solved.

In addition, the domestic registered utility model 20-0335746 (published Nov. 11, 2003) 'oxygen generator having a noise preventing structure' is a case in which a case constituting the main body of the oxygen generator is composed of a double structure in which the outer wall body and the inner wall are formed at regular intervals Wherein the outer wall and the inner wall are integrally formed through ribs formed at regular intervals and an air layer is formed between the rib and the rib so as to prevent noise of the vacuum pump for air compression inside the oxygen generator . The oxygen generator may have a dual body structure, and the inside and outside of the oxygen generator may be integrally formed with the ribs to prevent noise from being generated by a vacuum pump or the like for air compression installed in the main body of the oxygen generator. However, There is a problem that a comfortable treatment environment can not be provided because there is no structure for reducing noise to the air discharged to the outside.

Korean Registered Patent No. 10-0439330 (2004.07.07 Announcement) Korean Registered Patent No. 10-0764126 (issued October 10, 2007) Korean Registered Utility Model No. 20-0322561 (Notice of 2003.08.09) Korean Registered Utility Model No. 20-0335745 (Announcement of Dec. 2003)

Accordingly, the present invention has been made in view of the deficiencies and shortcomings of the prior art in order to simplify and rationalize the structure, to facilitate production, to minimize the vibration and noise generated from the compressor itself while always stably supporting and protecting the compressor inside the case A noise absorber is formed on the inner wall and the bottom of the case so as to minimize noise when the outside air is introduced and the inside air moves inside the case, And it is an object of the present invention to provide a medical suction and discharge device having a noise prevention function for minimizing the internal temperature and preventing internal overheating and providing a comfortable environment for treatment.

The medical suction and discharge device provided with the noise preventing function of the present invention includes a compressor for discharging the intake air and compressed air of the outside air by the operation of a pair of cylinders and a compressor for receiving and fixing the compressor therein, The air conditioner includes an upper case and a lower case formed in a divided manner, and an air passage for allowing outside air and internal air to move in the lower case. The remaining bottom surface and inner vertical surface of the lower case, A noise absorbing portion having a triangular prism shape is provided; An upper and a lower support piece which is screwed to a bottom surface around the air passage of the lower case and has one end of a fixed screw rod engaged with a support bar on the four sides of the compressor and fastened by a nut, A plurality of buffer support members for attenuating vibrations of the compressor are provided; Wherein the air passage formed in the lower case is provided by a circular tube protruding upward from a bottom surface; A partition wall which flows into the upper part of the circumferential surface of the cylindrical tube and serves as a fence while enclosing the outside, a lower passage and an inner ceiling portion of the partition wall, and a passage for air to move in a staggered manner, And a cover which is fastened to the bottom surface of the housing by a screw, so that the noise can be reduced when the outside air and the inside air move.

In addition, the present invention is characterized in that the plurality of circular tubes are disposed in a bottom surface of the lower case in an erroneous manner and a plurality of circular tubes arranged in a row and a plurality of corresponding cylindrical tubes are enclosed, So that noise generated upon inflow and outflow of the outside air and the inside air can be reduced.

In addition, the present invention provides a fixing bracket for additionally supporting a buffer support member so as to damp the vibration of the compressor more effectively and stably support it and extend its service life, and a component fixing plate for seating a control component for controlling the operation of the compressor It is possible to prevent the occurrence of vibration and noise by being mounted on the buffer support member.

In addition, the present invention is configured to adjust the clearance of the moving passage by adjusting the height of the cover engagement of the noise preventing portion so as to facilitate the cooling and discharge of the heat generated while reducing the vibrating noise generated from the compressor and the noise of the moving air do.

In the present invention, when the compressor, which is a main factor of vibration generation, is fixed to the buffer support member, the cylindrical portion of the buffer support member absorbs vibration and attenuates the vibration, and air introduced into or exhausted from the compressor passes through a plurality A quadrangular pyramid, a triangular prism, and a triangular pole, and a plurality of quadrangular pyramids formed on an upper portion of a cover provided with an air movement path to reduce noises, a plurality of cylindrical pipes formed on the bottom surface of the lower case, The air is moved in a zigzag manner by a plurality of air passageways and moving passageways produced through the air passageway, thereby minimizing noise and providing a pleasant environment for treatment.

Further, according to the present invention, provision of the fixing bracket to additionally support the buffer support member further dampens and stably supports the vibration of the compressor, so that the service life can be prolonged, and a part for seating the control part for controlling the operation of the compressor It is possible to minimize the occurrence of vibration and noise added by attaching the fixing plate to the buffer support member, thereby providing a pleasant environment for treatment.

In addition, the present invention can prevent noise and facilitate the discharge of internal heat by adjusting the gap between the distributing air and the heat and the moving passage for moving the external air through the fixing bolt, the washer or the spring for adjusting the height of the cover, It is convenient and provides a comfortable environment for treatment, it can extend the life as well as the power.

1 (A) and 1 (B) are perspective views showing the entire upper and lower portions of a medical suction and discharge device provided with a noise preventing function according to the present invention.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a medical suction and discharge device, and more particularly,
3 is an enlarged cross-sectional view taken along line AA of Fig.
4 is a plan view of a lower case according to the present invention.
5 is an enlarged perspective view of a bottom portion of a cover according to the present invention;
6 is an enlarged longitudinal sectional view of a buffer support member according to the present invention.
FIG. 7 is an enlarged cross-sectional view showing a state in which the gap of the moving passage is adjusted by adjusting the height of the cover according to the present invention.

Hereinafter, the structure and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, terms and words used in the present specification and claims are to be construed in accordance with the principles of the present invention, on the basis that the inventor can properly define the concept of a term in order to best explain his invention It should be construed as meaning and concept consistent with the technical idea of.

As shown in the drawings, the present invention includes a compressor 10 for discharging intake air and compressed air of external air by operation of a pair of cylinders disposed on the left and right sides as shown in FIGS. 1 and 3, The upper and lower cases 2 and 2 'are divided and formed so as to be easily separated and assembled by using screws. The upper case 2' and the lower case 2 ' (21). The compressor 10 is connected to a collection container 9, which is electrically connected to a control component (not shown) and collects moisture or dust on the outside of the air inlet pipe and the discharge pipe, A detailed description of the configuration and operation will be omitted.

The core technology of the present invention may be applied to a nebulizer for sucking and treating a patient's blood, pus, sputum or the like at the time of surgery or treatment of a patient as in FIGS. 1 to 3, an elderly person who is uncomfortable living in bed, The vibration generated from the compressor 10 for supplying air to the mattress for preventing disease of the compressor 10 and the external air supplied to the compressor 10 or the discharged internal air are introduced into the air passage 21 The noise absorbing portion 3 is provided by improving the internal structure of the lower case 2 'in which air is frequently moved in order to reduce the noise generated when the compressor 10 is moved to the compressor 1, The noise preventing part 6 is provided so as to reduce the noise while moving the air moving to the air passage 21 in a zigzag shape instead of the direct passage. So as to reduce the vibration and noise generated from the control parts or the like which operate the compressor 10 or to add a fixing bracket 7 for extending the life of the compressor 10 by adding a buffer support member 4 for supporting the compressor 10, A component fixing plate 8 fixed to the members 4 and 4 'is provided to prevent the occurrence of vibration and noise.

First, as shown in FIG. 2, the vibrating sound generated by the operation of the compressor 10, the external air supplied to the compressor 10, and the compressed air discharged from the compressor 10 are transferred to the central portion of the lower case 2 ' An air passage 21 is formed in the bottom surface 22 and the other bottom surface 22 and the inner vertical surface 23 of the lower case 2 'are provided with concave and convex shapes of a quadrangular pyramid 31 and a triangular prism 32 And a noise absorbing part 3 is provided. The quadrangular pyramid 31 and the triangular column 32 partially reflect the high-pitched sound waves of the moving air, absorb some of them, transmit the rest of them, attenuate to a sound pressure level of 50 dB or less of bass sound waves, .

3 and 4, a buffer support member 4 is provided to attenuate the vibration force of the compressor 10 to minimize noise, and the buffer support member 4 is fixed to the support 10 formed on the four sides of the compressor 10 (11).

3 and 6, the buffer support member 4 includes a fixed screw rod 42 'and a compressor (not shown) which are screwed to the bottom surface 22 around the air passage 21 of the lower case 2' The upper and lower support pieces 41 and 41 ', which have respective ends of the fixing screw rod 42 to be fastened by a nut after the support rods 11 are coupled to the four sides of the upper and lower support rods 10 and 10, And a cylindrical portion 43 is integrally formed at the center between the lower support pieces 41 and 41 'for dispersing an impact due to vibration.

The noise preventing portion 6 is formed by improving the air passage 21 formed on the bottom surface 22 of the lower case 2 'and the cover 5 disposed on the upper portion of the air passage 21. [

3, the air discharged from the outside air or the compressor 10 is not directly moved from the bottom surface 22 of the predetermined height to the outside of the air passage 21 formed in the lower case 2 ' So as to provide a flow path of air from the cylindrical pipe 24 protruded upward.

3 and 5, the cover 5 flows into the upper part of the circumferential surface of the circular tube 24 formed on the bottom surface 22 of the lower case 2 'to enclose the outside and serve as a fence (52) is provided so that air can move staggered between the lower end and inner ceiling portion of the partition wall (51) and the cylindrical pipe (24) while the bottom of the lower case (2 ' And is fastened to the side surface 22 with screws at four corners.

The noise preventing portion 6 is composed of a circular tube 24 providing one air passage 21 and a cover 5 providing the moving passage 52 through one partition wall 51 or a plurality of And a cover 5 for providing a moving passage 52 through a plurality of cylindrical pipes 24 and a plurality of partitions 51 to provide an air passage 21 of the cover 5. As shown in Figure 2, A plurality of quadrangular pyramids 53 are formed on the upper surface to reduce the noise through the same function as the noise absorber 3.

The noise preventing portion 6 composed of the circular tube 24 providing the one air passage 21 and the cover 5 providing the moving passage 52 through one partition wall 51 is provided in the compressor 10, And the distance between the air passage 52 and the air passage 21 is controlled so that the flow of the air supplied to the compressor 10 and the amount of air discharged from the compressor 10 are smooth.

The noise preventing portion 6 including the cover 5 for providing the moving passage 52 through the plurality of cylindrical pipes 24 and the plurality of partition walls 51 to provide the plurality of air passageways 21 As shown in the enlarged part of FIG. 3 and in FIG. 5, the plurality of cylindrical pipes 24 have an inner diameter D of 5 mm to 10 mm and a length of 2/3 mm in proportion to the area of the bottom surface 22 of the lower case 2 ' A plurality of partition walls 51 are arranged in the area of ½ of the size of the cover tubes 5, and the corresponding partition walls 51 are covered with the covers 5 And the air moving to the plurality of circular tubes 24 has 0.5 to 2 mm gaps T1 and T2 between the plurality of partitions 51 formed on the bottom surface of the cover 5. [ (52) formed on the bottom of the cover (5) so that the noise is reduced while the noise is reduced Lock.

Meanwhile, a pair of fixing brackets 7 are provided so as to extend the life of the compressor 10 while stably supporting the compressor 10 by interposing a buffer support member 4 for attenuating the vibration of the compressor 10 in the middle do. 2 and 4, the fixing bracket 7 is fitted to the other end of the fixed screw rod 42, one end of which is fixed to the upper support piece 41 of the buffer support member 4 disposed on both sides in two rows, Side wing portions 71 having a fastening hole 711 formed therein so as to be fitted on the fixing screw rod 42 while being placed on the upper portion of the support 11 of the compressor 10, 10 so as to be engaged with the other end of the fixed screw bar 42 whose one end is embedded in the upper support piece 41 of the buffer support member 4 which is bent downward by the thickness of the support bar 11 of the buffer support member 4 And a horizontal portion 72 having a vertical surface 722 bent upward at opposite ends in the longitudinal direction.

In addition, a component fixing plate 8 for mounting a control unit (not shown) for controlling the driving of the compressor 10 is mounted on the buffer support member 4 to prevent the generation of vibration and noise. 2 and 3, the component fixing plate 8 is fixed to the bottom surface 22 of the lower case 2 'by a lower fixing screw rod 42' and is fixed to the fixing bracket 7 and the compressor 10 Of the shock absorber 4 'further disposed on one side of the bottom surface 22 of the lower case 2' and the cushioning support members 4 having the fixing screw rod 42 for fixing the support base 11 of the lower case 2 ' And a through hole 81 is formed in the support piece 41 so as to be fitted and fixed to the fixed screw rod 42 having one end embedded therein. The component fixing plate 8 is formed with a protruded rib and a plurality of through holes to fix a control unit (not shown).

Meanwhile, the cover 5 and the lower case 2 'are provided so as to facilitate the cooling and discharge of the internal heat generated by the compressor 10, which is generated from the compressor 10 while reducing the vibration noise generated from the compressor 10 and the noise of moving air. (52, 52 ') formed between the bottom surface (22) of the air passage (22). 2 and 7, a male screw portion penetrated by a coupling hole 54 perforated in the periphery of the cover 5 of the noise preventing portion 6 is formed on the bottom surface 22 of the lower case 2 ' A screw hole 55 formed on the bottom surface of the coupling hole 54 of the cover 5 and the bottom surface 22 of the lower case 2 ' The height of the clearance between the moving passages 52 and 52 'is adjusted by using the washer 56 or the spring 57 which separates the upper portion of the movable member 25 from the upper portion of the movable passage 25. When the gap is small, The effect of heat dissipation is large, so it is preferable to adjust it to suit the use environment.

As described above, according to the present invention, the air passage 21 formed on the bottom surface 22 of the lower case 2 'to which the discharge air of the external air and the compressor 10 is moved and the lower case A noise absorber 3 consisting of a plurality of quadrangular pyramids 31 and triangular pillars 32 formed on the bottom surface 22 of the base 2 and a plurality of quadrangular pyramids 53 formed on the top of the cover 5, ) And a part of the vibration sound generated from the compressor (10) is reflected and absorbed by a part, and the rest is transmitted to attenuate to a sound pressure level of 50 dB or less to minimize vibration noise and noise caused by air movement. .

The vibration generated by the operation of the compressor 10 is transmitted to the upper supporting piece 41 by fixing the supporting frame 11 formed at the four sides to the upper supporting piece 41 for fixing the compressor 10, The member 4 can provide a comfortable environment for treatment because the vibration of the compressor 10 is radially injected while the cylindrical portion 43 at the center is buffered as shown in Fig.

1 and 3, when the compressor 10 is fixed using a pair of fixing brackets 7 and the buffer support member 4 is further provided at the center, the vibration of the compressor 10 can be more stably It is possible to minimize the generation of noise by buffering and to provide a comfortable environment for treatment and to extend the service life of the buffer support member 4, which is hard.

A plurality of circular tubes 24 made of an air passage 21 formed in the bottom surface 22 of the lower case 2 'and a plurality of cylindrical tubes 24 arranged around the upper and peripheral surfaces of the cylindrical tubes 24, When the inflow of outside air or the discharging of the inside air by the plurality of partitions 51 forming the openings 52 and 52 'moves the air in a staggered shape as in the enlarged part of FIG. 3, And the rest is permeable to minimize noise so that a pleasant environment for treatment can be provided.

2 and 3, the buffer support member 4 for supporting the compressor 10 and the component fixing plate 8 fixed to the buffer support member 4 ' The small vibrations and noises generated by mounting the control components and the like are transferred to the buffer support members 4 and 4 'to be attenuated, thereby providing a comfortable environment for treatment.

7 (A), the bottom surface of the engaging hole 54 of the cover 5 is fixed to the upper portion of the female screw hole 25 formed on the bottom surface 22 of the lower case 2 'by the adjusting bolt 55 , The moving passages 52 and 52 'have a 0.5 to 2 mm gap T1 and T2 while reducing the noise to a minimum. However, the cooling and discharging effect of the internal heat is low, Between the bottom surface of the engaging hole 54 of the cover 5 and the female screw hole 25 formed on the bottom surface 22 of the lower case 2 'as shown in Figs. 5B and 5C, If the gaps T1 'and T2' are formed largely using the adjusting bolts 55 by using a large number of folded portions 56 or the spring 57, smooth movement of air and air can be smoothly performed, However, since the cooling and discharge effect of the internal heat is improved, the compressor 10 and the components not shown are not overheated, so that the service life can be extended.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Accordingly, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

10: compressor 11: support
2: upper case 2 ': lower case
21: air passage 22: bottom surface
23; Vertical plane 24: Circular clearance
3: noise absorbing part 31: quadrangular pyramid
32: triangular column
4, 4 ': buffer support member 41: upper support piece
41 ': Lower support piece 42, 42': Fixed screw bar
43:
5: cover 51: partition wall
52, 52 ': moving passage 53: quadrangular pyramid
54: engaging hole 55: adjusting bolt
56: washer 57: spring
6: Noise prevention part
7: Fixing bracket 71:
72: horizontal part 711: fastening hole
721: fastening hole 722: vertical surface
8: Part fixing plate 81: Through hole

Claims (5)

A compressor 10 for discharging the intake air and compressed air of the outside air by the operation of a pair of cylinders and an upper and a lower case 2 , And an air passage (21) is formed in the lower case (2 ') so that external air and internal air can move. In this medical suction and discharge device,
The air passage 21 is formed in a concavo-convex shape of a quadrangular pyramid 31 and a triangular pyramid 32 on the remaining bottom surface 22 and the inner vertical surface 23 of the lower case 2 'formed on the bottom surface 22 A noise absorbing portion 3 is provided;
A fixing screw rod 42 which is screwed to the bottom surface 22 around the air passage 21 of the lower case 2 'and which is fastened with a nut after fastening the supports 11 on the four sides of the compressor 10, The upper and lower support pieces 41 and 41 'with one end of each of the upper and lower support pieces 41 and 41' and the cylindrical portion 43 for performing a buffer operation between the upper and lower support pieces 41 and 41 ' A plurality of buffer support members 4 for attenuating vibrations of the buffer member 10;
An air passage (21) formed in the lower case (2 ') is provided by a circular tube (24) protruding upward from a bottom surface (22);
A partition wall 51 that flows into the upper portion of the circumference of the cylindrical pipe 24 and functions as a fence while enclosing the outside of the cylindrical pipe 24 and air flows between the lower and inner ceiling portions of the partition wall 51 and the circular pipe 24, A noise preventing portion 6 composed of a cover 5 which is fastened to the bottom surface 22 of the lower case 2 'with a screw while providing a moving passage 52 is provided so that the external air and the internal air And the noise can be reduced when moving the suction and discharge device.
3. The air conditioner according to claim 1, wherein the noise preventing portion includes a circular tube for providing an air passage and a cover for providing a moving passage through one partition wall, And a cover 5 for providing a moving passage 52 through a plurality of cylindrical pipes 24 and a plurality of partitions 51 to provide a plurality of air passageways 21,
Wherein a plurality of quadrangular pyramids (53) are formed on the upper surface of the cover (5) of the noise preventing portion (6) to reduce noise;
A large number of the circular tubes 24 are arranged in an area of 2/3 to 1/2 size in proportion to the area of the bottom surface 22 of the lower case 2 ' A plurality of partition walls 51 are formed on the bottom surface of the cover 5 so as to surround each of the cylindrical pipes 24 and serve as a fence, 5 to the moving passage 52 formed between the partition walls 51 formed on the bottom of the cover 5 and the noise is reduced while flowing into and out of the moving passage 52 ' Wherein the suction and discharge device has a noise prevention function.
2. The compressor according to claim 1, wherein a fixing bracket (7) is provided to increase the shock absorbing support member (4) absorbing and attenuating the vibration of the compressor (10);
The fixing bracket 7 is fixed to the support 11 of the compressor 10 which is fitted to the other end of the fixing screw rod 42, one end of which is fixed to the upper support piece 41 of the buffer support member 4, And both the side wings 71 and the lower side wings 71 are formed with the fastening holes 711 being pierced so as to be fitted to the fixed screw rods 42 while being mounted on the upper side of the compressor 10, The fastening hole 721 is provided so as to be fitted to the other end of the fixed screw rod 42 having one end embedded in the upper support piece 41 of the buffer support member 4 which is bent and increased in the center, And a horizontal portion (72) having a vertical surface (722).
The compressor according to claim 1, characterized in that it is fixed to the bottom surface (22) of the lower case (2 ') by a lower fixed screw rod (42') and fixes the support bracket (7) A buffer support member 4 having a fixed screw rod 42 and an upper support piece 41 of a buffer support 4 'further disposed on one side of the bottom surface 22 of the lower case 2' A component fixing plate 8 for mounting a control portion for controlling the operation of the compressor 10 while forming a through hole 81 so as to be fitted and fixed to the embedded fixed screw bar 42 is provided to prevent the generation of vibration and noise Wherein the suction and discharge device has a noise prevention function.
The noise preventing unit (6) according to claim 1, characterized in that the noise preventing unit (6) has a perforation hole (4) formed in the periphery of the cover (5) so as to facilitate cooling and discharge of heat generated while reducing vibration noise generated from the compressor An adjustment bolt 55 which is fastened to a female screw hole 25 formed on the bottom surface 22 of the lower case 2 ' 52 'by the washer 56 or the spring 57 which separates the bottom of the lower case 2' from the upper side of the female screw hole 25 formed on the bottom surface 22 of the lower case 2 ' The suction and discharge device for medical use has a noise prevention function.

Images