CN214788242U - Fan subassembly and breathing machine - Google Patents

Abstract

The present application provides a blower assembly and a breathing apparatus including the blower assembly. The fan subassembly includes damper and fan, wherein: damping component includes shock attenuation box and shock attenuation piece, the shock attenuation box includes the holding chamber, the fan is at least partly in the holding intracavity, the shock attenuation piece is filled the fan with in the space between the shock attenuation box inner wall in order to reduce the vibrations of fan during operation, wherein, the shock attenuation box includes first opening and second opening, wherein: the first opening corresponds to the air inlet of the fan and is communicated with the air inlet of the fan, so that the target gas is guided to the air inlet of the fan from the first opening; and the second opening corresponds to the air outlet of the fan, and the target gas flowing out of the air outlet can flow out of the damping box to a downstream gas circuit through the second opening.

Description

Fan subassembly and breathing machine

Technical Field

The present application relates to the field of breathing apparatus, and more particularly, to a blower assembly and a ventilator.

Background

In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and has a very important position in the modern medical field. The breathing machine is a vital medical device which can prevent and treat respiratory failure, reduce complications and save and prolong the life of a patient.

The respirator is required to be provided with an air source under the precondition of normal work. Traditional breathing machine is equipped with the air compressor machine usually as the air supply, however the air compressor machine is bulky, transports in the inconvenient breathing machine institute, and the super large noise of air compressor machine also brings relatively poor experience for the patient, is unfavorable for patient's recovery. With the rapid development of motor control technology, the turbo fan is introduced into the breathing machine equipment, the defect of heavy weight of the air compressor is overcome, the adopted turbo fan has lower noise than the air compressor, but is still difficult to meet the requirements of regulations, and the turbo fan is easy to generate vibration, heat and other adverse factors. The breathing machine also has the problem of uneven oxygen mixing.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary of the application in order to provide a basic understanding of some aspects of the application. It should be understood that this section is not intended to identify key or critical elements of the application, nor is it intended to be limiting as to the scope of the application. Its sole purpose is to present some concepts of the disclosure in a simplified form. More details will be explained in more detail in the rest of the application.

In order to solve the technical problems of vibration, noise and large size of a turbine box existing in a respirator comprising a turbine fan, the application provides a fan assembly. The fan subassembly includes damper and fan, wherein: damping component includes shock attenuation box and shock attenuation piece, the shock attenuation box includes the holding chamber, the fan is at least partly in the holding intracavity, the shock attenuation piece is filled the fan with in the space between the shock attenuation box inner wall in order to reduce the vibrations of fan during operation, wherein, the shock attenuation box includes first opening and second opening, wherein: the first opening corresponds to the air inlet of the fan and is communicated with the air inlet of the fan, so that the target gas is guided to the air inlet of the fan from the first opening; and the second opening corresponds to the air outlet of the fan, and the target gas flowing out of the air outlet can flow out of the damping box to a downstream gas circuit through the second opening.

In some embodiments, the fan assembly further comprises an air outlet connecting pipe having a hollow pipe structure and including an air outlet pipe inlet and an air outlet pipe outlet, wherein: the inlet of the air outlet pipe is communicated with the air outlet; the air outlet pipe outlet is positioned outside the shock absorption box, wherein a detection interface is arranged at the part of the air outlet pipe positioned outside the shock absorption box.

In some embodiments, an air inlet connecting portion is arranged in the damping box at a position corresponding to the first opening, the air inlet connecting portion has a hollow pipe structure, and the first opening is an inlet of the hollow pipe structure; the fan assembly further comprises an air inlet connecting pipe, and two ends of the air inlet connecting pipe are respectively connected with the air inlet connecting portion and the air inlet of the fan, so that the air inlet connecting portion is communicated with the air inlet of the fan.

In some embodiments, the shock-absorbing box further comprises a third opening; the fan assembly further comprises an end cover, the end cover is arranged at one end, close to the third opening, of the damping box, the end cover is connected with the damping box so as to seal the third opening, and a fourth opening is arranged on the end cover to allow one end, connected with a motor, of the fan to extend out.

In some embodiments, the outer contour of the damper box is a rectangular prism, the main body of the damper box is composed of a first wall plate, a second wall plate, a third wall plate, a fourth wall plate and a fifth wall plate, the first wall plate, the second wall plate, the third wall plate, the fourth wall plate and the fifth wall plate enclose the accommodating cavity and form a third opening, the third opening is an inlet of the accommodating cavity, the damper can enter the accommodating cavity through the third opening, wherein the first wall plate is opposite to the third opening and forms the bottom of the accommodating cavity, the second wall plate, the third wall plate, the fourth wall plate and the fifth wall plate are sequentially connected to form a side wall of the accommodating cavity, the second wall plate is opposite to the fourth wall plate, and the third wall plate is opposite to the fifth wall plate, wherein: the first opening is formed in the outer surface of the first wall plate, the air inlet connecting portion comprises an inner pipeline extending from the first wall plate to the inside of the accommodating cavity, the second opening is formed in the outer surface of the second wall plate, the second opening comprises a through hole structure arranged on the second wall plate, the outer surface of the first wall plate is a plane, the outer surface of the first wall plate further comprises at least one mounting hole surrounding the periphery of the first opening, and the outer surface of the fourth wall plate further comprises a mounting foot protruding out of the fourth wall plate.

In some embodiments, the fan assembly further comprises a noise reducing device disposed on one side of the damper assembly and configured to reduce noise of the target gas, the noise reducing device disposed upstream of the damper assembly in a direction of flow of the target gas, the noise reducing device comprising a first gas passage, a second gas passage, and a mixing chamber, the first gas passage and the second gas passage communicating with the mixing chamber, the first gas passage configured to direct a first gas from a first gas passage inlet to the mixing chamber, the second gas passage configured to direct a second gas from a second gas passage inlet to the mixing chamber, the first gas and the second gas mixing into the target gas in the mixing chamber, the mixing chamber comprising a mixing chamber outlet, the mixing chamber outlet communicates with the first opening to direct the target gas to the damper assembly, wherein the silencer device includes a silencer casing and a plurality of silencers disposed within the silencer casing to cause the silencer device to form the first passage and the mixing chamber, the plurality of silencers including a silencer material and configured to muffle noise of gas entering the fan via the silencer device.

In some embodiments, the second gas passage inlet is disposed at an end distal from the mixing chamber outlet.

In some embodiments, the fan assembly further comprises: and a sealing member disposed between the sound-deadening box and the shock-absorbing box to prevent leakage of gas when the gas flows from the sound-deadening device to the shock-absorbing assembly.

In some embodiments, the fan assembly further comprises a filter assembly disposed along the first gas passageway upstream of the first gas inlet and configured to filter the first gas; the silencing box further comprises a filter assembly accommodating cavity, the filter assembly accommodating cavity is communicated with the first gas inlet, and at least part of the filter assembly is arranged in the filter assembly accommodating cavity.

The present application further provides a ventilator, including the fan assembly of the present application.

Drawings

The following drawings describe in detail exemplary embodiments disclosed in the present application. Wherein like reference numerals represent similar structures throughout the several views of the drawings. Those of ordinary skill in the art will understand that the present embodiments are non-limiting, exemplary embodiments, and that the accompanying drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of the present disclosure, as other embodiments may equally accomplish the utility model intent of the present application. It should be understood that the drawings are not to scale. Wherein:

FIG. 1A illustrates a schematic diagram of an overall structure of a fan assembly provided according to an embodiment of the present application;

FIG. 1B illustrates a partial cross-sectional view of a fan assembly provided in accordance with an embodiment of the present application;

FIG. 2A illustrates an isometric view of one orientation of a shock-absorbing cartridge provided in accordance with an embodiment of the present application;

FIG. 2B illustrates an isometric view of another orientation of a shock-absorbing cartridge provided in accordance with an embodiment of the present application;

FIG. 3 illustrates an overall schematic structure diagram of another fan assembly provided according to an embodiment of the present application;

FIG. 4 illustrates a schematic connection diagram of a silencer, a damper assembly and a fan according to an embodiment of the present disclosure;

FIG. 5A illustrates an isometric view of a sound damping cassette provided in accordance with an embodiment of the present application;

FIG. 5B illustrates an isometric view of another orientation of a sound damping cassette provided in accordance with an embodiment of the present application;

fig. 5C shows an a-direction view of the sound-deadening box shown in fig. 5B; and

fig. 6 shows a schematic structural diagram of a filter assembly provided according to an embodiment of the present application.

Detailed Description

The following description is presented to enable any person skilled in the art to make and use the present disclosure, and is provided in the context of a particular application and its requirements. These and other features of the present disclosure, as well as the operation and function of the related elements of the structure, and the combination of parts and economies of manufacture, may be particularly improved upon in view of the following description. All of which form a part of the present disclosure, with reference to the accompanying drawings. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the disclosure. Various local modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present disclosure. Thus, the present disclosure is not to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the claims.

The application provides a fan assembly. As an example, fig. 1A shows an overall structural schematic diagram of a fan assembly 001 provided according to an embodiment of the present application. Fig. 1B illustrates a partial cross-sectional view of an isometric view of a fan assembly 001 provided in accordance with an embodiment of the present application. Specifically, the fan assembly 001 may include a damper assembly 300 and a fan 400.

Referring to fig. 1A and 1B, the blower 400 may include an intake vent 410 and an outlet vent 420. The end of the fan 400 to which the motor is connected is 430. The fan 400 is at least partially within the shock box 310.

The shock absorbing assembly 300 may include a shock absorbing case 310 and a shock absorbing member 320.

The shock absorbing members 320 are filled in a space between the blower fan 400 and the inner wall of the shock absorbing box 310. In one aspect, the shock absorbing member 320 may provide support for the fan 400; on the other hand, the shock absorbing member 320 may reduce vibration when the fan 400 operates. In some embodiments, the shock absorbing member 320 may include shock absorbing cotton 321 having a shock absorbing function. The number of the shock-absorbing cottons 321 may be plural. The vibration-damping cotton 321 may wrap a portion of the fan 400 where vibration is generated. In some embodiments, the shock absorbing member 320 may further include a shock absorbing silicone pad 322. The shock-absorbing silicone pad 322 may be disposed between the blower 400 and the end cap 530.

The shock-absorbing case 310 has a cavity structure. The cavity structure is configured to accommodate the damper 320 and the blower 400. The shock-absorbing case 310 may include a first opening 311 and a second opening 312. The first opening 311 corresponds to the air inlet 410 of the blower 400, and is communicated with the air inlet 410 of the blower 400 so as to guide the target gas from the first opening 311 to the air inlet 410 of the blower 400. The second opening 312 corresponds to the air outlet 420 of the blower 400, and the second opening 312 is configured to allow the target gas flowing out of the air outlet 420 to flow out of the blower assembly 001. As an example, the arrows in FIG. 1B show the flow direction l of the target gas₀。

In some embodiments, the fan assembly 001 further comprises an air outlet duct 510. The outlet duct 510 has a hollow tube structure and includes an outlet duct inlet end 511 and an outlet duct outlet end 512. The air inlet end 511 of the air outlet pipe is communicated with the air outlet 420. The air outlet pipe air outlet end 512 is located outside the shock absorption box 310, wherein a detection interface 513 is arranged at the part, located outside the shock absorption box 310, of the air outlet pipe 510.

In some embodiments, an air inlet connection portion 314 is disposed in the shock-absorbing box 310 at a position corresponding to the first opening 311, the air inlet connection portion 314 has a hollow pipe structure, and the first opening 311 is an inlet of the hollow pipe structure.

The fan assembly 001 further includes an air inlet connection pipe 520. The air inlet connection pipe 520 includes a hollow pipe structure. Both ends of the air inlet connection pipe 520 are respectively connected to the air inlet connection portion 314 and the air inlet 410 of the fan, so as to communicate the fan connection portion 314 with the air inlet 410 of the fan.

In some embodiments, the shock box 310 further includes a third opening 313. The blower assembly 001 further comprises an end cap 530, the end cap 530 is disposed at an end of the shock-absorbing box 310 close to the third opening 313, the end cap 530 is connected to the shock-absorbing box 310 to close the third opening 313, wherein a fourth opening 531 (a fourth opening 531 is shown in fig. 1A) is disposed on the end cap 530 to allow an end 430 of the blower 400 connected with a motor to extend out.

In some embodiments, the first opening 311 is disposed on the first outer surface 319 of the shock box 310. A sound attenuating device located upstream of shock absorbing assembly 300 may be attached to first outer surface 319. Wherein the gas outlet of the silencing device may communicate with the first opening 311.

By way of example, FIG. 2A shows an isometric view of one orientation of a shock box 310 provided in accordance with an embodiment of the present application, and FIG. 2B shows an isometric view of another orientation of a shock box 310 provided in accordance with an embodiment of the present application.

Referring to fig. 2A and 2B, the outer contour of the damper box 310 has a rectangular prism shape. The main body portion of the shock-absorbing box 310 is formed of a first wall plate 381, a second wall plate 382, a third wall plate 383, a fourth wall plate 384, and a fifth wall plate 385. The body portion of the shock-absorbing case 310 refers to a main portion of a case body constituting the shock-absorbing case 310. The first wall plate 381, the second wall plate 382, the third wall plate 383, the fourth wall plate 384 and the fifth wall plate 385 enclose the accommodating cavity 389 and form a third opening 313, the third opening 313 is an inlet of the accommodating cavity 389, and the shock absorber can enter the accommodating cavity 389 through the third opening 313, wherein the first wall plate 381 is opposite to the third opening 313 and forms a bottom of the accommodating cavity 389, the second wall plate 382, the third wall plate 383, the fourth wall plate 384 and the fifth wall plate 385 are sequentially connected to form a side wall of the accommodating cavity 389, the second wall plate 382 is opposite to the fourth wall plate 384, and the third wall plate 383 is opposite to the fifth wall plate 385. For convenience of description, in the following description of the present application, it is necessary to make an explanation on an "outer surface" and an "inner surface", and according to the blower assembly and the ventilator provided in the present application, the inner surface refers to a surface facing the accommodation chamber inside the damper box, and the outer surface refers to a surface facing the outer space of the damper box. The first opening 311 is on the outer surface 319 of the first wall panel 381. The air inlet connection 314 includes an inner conduit extending from the first wall panel 381 to the interior of the accommodating cavity 389, and the second opening 312 is formed on the outer surface 372 of the second wall panel 382, wherein the second opening 312 includes a through hole structure formed on the second wall panel 382. The outer surface 319 of the first wall panel 381 is planar, and the outer surface 319 of the first wall panel 381 further includes at least one mounting hole 388 around the periphery of the first opening 311. The outer surface of the fourth wall 384 further includes mounting feet 387 projecting from the fourth wall 384. The shock box 310 also includes at least one mounting ear 379 disposed around the third opening 313 to enable assembly with an end cap. The mounting ears 379 may be provided with blind or through hole structures. The shock-absorbing box 310 may further include a seal mounting groove 378 surrounding the outer periphery of the third opening 313. The seal mounting groove 378 may receive a seal ring to improve the sealing of the shock box with the end cap assembly.

In some embodiments, the blower assembly 001 may further comprise a sealing ring 540. A sealing ring 540 may be disposed between the end cap 530 and the shock-absorbing box 310 to improve sealability. As an example, the damper box 310 may be provided with a packing installation groove. The packing 540 may be installed in the packing installation groove.

As an example, fig. 3 shows an overall structural schematic diagram of another fan assembly 002 provided according to the embodiment of the present application. Referring to fig. 3, in some embodiments, fan assembly 002 may include a noise abatement device 100 and/or a filter assembly 200 in addition to a shock assembly 300 and a fan 400.

As an example, fig. 4 shows a connection schematic diagram of a silencer device 100, a shock absorbing assembly 300 and a fan 400 provided according to an embodiment of the present application.

The muffler device 100 is configured to reduce noise of the target gas. The muffler device 100 may be provided at one side of the shock-absorbing assembly 300. For example, the muffler assembly 300 may be disposed at one side of the first opening 311 of the shock-absorbing assembly 300. The target gas may be in the direction l shown in fig. 4₀And (4) flowing. Along the direction l of the target gas flow₀The muffler device 100 may be disposed upstream of the shock-absorbing assembly 300.

With continued reference to FIG. 4, the muffler apparatus 100 may include a first gas passage 10, a second gas passage 20, and a mixing chamber 30. The first gas channel 10 and the second gas channel 20 are in communication with the mixing chamber 30, the first gas channel 10 being configured to direct a first gas from a first gas channel inlet 11 to the mixing chamber 30. As an example, the first gas may be air. The second gas channel 20 is configured to guide the second gas from a second gas channel inlet 21 to the mixing chamber 30. As an example, the second gas may be oxygen. The first gas and the second gas are mixed in the mixing chamber 30 as the target gas. The mixing chamber 30 includes a mixing chamber outlet 31, and the mixing chamber outlet 31 communicates with the first opening 311 of the damper assembly 300 to guide the target gas to the damper assembly 300.

Specifically, the silencing apparatus 100 may include a silencing box 110 and a silencing piece 120. The silencer 120 may be arranged inside the silencing box 110 forming said first gas channel 10 and/or said mixing chamber 30. The silencer 120 may be made of a silencing material (e.g., silencing cotton), and the silencer 120 is configured to eliminate noise of the first gas.

As an example, fig. 5A shows an isometric view of a sound-deadening box 110 provided according to an embodiment of the present application, fig. 5B shows an isometric view of another orientation of a sound-deadening box 110 provided according to an embodiment of the present application, and fig. 5C shows an a-directional view of the sound-deadening box 110 shown in fig. 5B.

Referring to fig. 5A, 5B and 5C, the sound-deadening box 110 includes a first wall plate 81, a second wall plate 82, a third wall plate 83, a fourth wall plate 84 and a fifth wall plate 85. Wherein the first wall plate 81, the second wall plate 82, the third wall plate 83, the fourth wall plate 84, and the fifth wall plate 85 enclose a main chamber of the sound-deadening box 110 and form a main chamber inlet 86. The first wall plate 81 is opposite the fourth wall plate 84, the second wall plate 82 is opposite the main chamber inlet 86, and the third wall plate 83 is opposite the fifth wall plate 85.

Be provided with separation structure 89 in the main cavity, separation structure 89 will the main cavity is separated into first subchamber Q₁And a second sub-chamber Q₂. The first gas inlet is arranged to form the first sub-chamber Q₁On the wall panel of (2). As an example, the first gas inlet 11 is a through hole structure on the fifth wall plate 85. A plurality of noise attenuating members may be disposed in the first sub-chamber Q₁The first gas channel 10 and the mixing chamber 30 are formed. For example, the plurality of sound attenuating elements may be disposed in sequence between the second wall 82 and the primary chamber inlet 86. The first sub-chamber Q₁And may be divided into a first portion and a second portion. At least one silencer element 120 is arranged in the first part forming the first gas duct 10 and at least one silencer element 120 is arranged in the second part forming the mixing chamber 30. The outer contour of the silencer closest to the main chamber inlet 86 matches the main chamber inlet 86 and substantially seals the main chamber inlet 86, wherein the silencer is provided with a through hole structure, which is the mixed gas outlet 31. For example, in the embodiment shown in FIG. 4, 5 silencing elements X₁、X₂、X₃、X₄And X₅Are sequentially arranged in the first sub-cavity Q along the flowing direction of the first gas₁Forms the first gas channel 10. Silencing part X₆And a silencing member X₇Are sequentially arranged in the first sub-cavity Q₁Forming the mixing chamber 30. Silencing part X₆With silencing parts X on both sides₅And a silencing member X₇Enclosing said mixing chamber 30. Silencing part X₆Is provided with an opening to communicate with the first gas channel 10. Silencing part X₇Is disposed at the end closest to the main chamber inlet 86. Silencing part X₇Is sized to substantially match the main chamber inlet 86. Thus, the silencing element X₇Substantially blocking the main chamber inlet 86. The mixing cavity air outlet 31 is arranged on the silencing part X₇The above.

With reference to fig. 5A, 5B and 5C, the second sub-chamber Q is constituted₂The wall of the chamber wall of (2) is provided with an outer conduit (92). One end of the outer pipe 92 is the second gas inlet 21, and the other end is the second sub-chamber Q₂And (4) communicating. As an example, the outer pipe 92 may be disposed on the first wall plate 81 and protrude from the first wall plate 81.

By way of example, the second gas inlet 21 is disposed at an end remote from the main chamber inlet 86. Thus, on the one hand, the distance from the second gas inlet 21 to the mixed gas outlet 31 is increased, increasing the length of the second gas channel 20; on the other hand, the installation position is reserved for other parts on the oxygen path, so that the structure of the respirator provided with the silencing box is more compact.

In some embodiments, the sound damping box 110 may further include a receiving cavity 114. The accommodation chamber 114 may be disposed upstream of the first gas inlet 11 in the direction of the first gas flow. One end of the accommodating chamber 114 is communicated with the first gas inlet 11, and the other end is communicated with the atmosphere. The receiving cavity 114 may be a filter assembly receiving cavity. The receiving cavity 114 is configured to receive a filter assembly. The filter assembly may filter the first gas. The filter assembly is at least partially within the receiving cavity 114. The receiving cavity 114 can be defined by the fifth wall 85 and the wall 87 surrounding the outer contour edge of the fifth wall 85. The receiving cavity 114 is substantially rectangular. A catch 94 may be provided on wall 87. A snap fit may be provided on the filter assembly and may snap into the snap groove 94 to secure the filter assembly within the receiving cavity 114.

In some embodiments, sound damping cartridge 110 may further include mounting portion 95. The mounting portion 95 is disposed at one end of the main chamber inlet 86. For example, the mounting portion 95 may include at least one mounting ear disposed circumferentially about the main chamber inlet 86. The mounting portion 95 may be provided with mounting holes configured to allow fasteners to pass therethrough and mount the muffler device 100 to the shock box. In some embodiments, the muffler and shock assembly may be of a unitary design, however, the unitary design may increase the cost of manufacturing, assembly, maintenance, etc. Taking the maintenance cost as an example, if the shock absorption assembly fails, the silencer integrally designed with the shock absorption assembly needs to be replaced, and the maintenance cost is increased. This application is connected silencing device and damper through installation portion, and silencing device and damper are mutually independent, can realize silencing device and damper's modular design, have improved manufacturability, have reduced and have generated assembly cost of maintenance.

In some embodiments, the sound damping box 110 may further include a packing installation groove 118. The seal mounting slot 118 may be disposed at one end of the primary chamber inlet 86 and disposed around the primary chamber inlet 86. A sealing member 40 (e.g., a packing) may be installed in the sealing member installation groove 118 to improve sealability of the connection between the sound-damping box 110 and the shock-absorbing box.

In some embodiments, the sound-deadening cartridge 110 may further include a negative pressure detection port 51. As an example, the negative pressure detection port 51 is provided on the second wall plate 82. In some embodiments, the sound abatement device 100 may further comprise a negative pressure detection device 50, wherein the negative pressure detection device 50 may access the first gas channel 10 through the negative pressure detection port 51 to measure the negative pressure in the first gas channel 10.

In some embodiments, the sound damping box 110 may also include mounting feet 88. As an example, mounting feet 88 may be provided on the third wall plate 83. The mounting feet 88 may attach the sound damping box to the support unit.

Referring to fig. 4, the fan assembly 002 may also include a seal 40. A seal 40 may be provided between the muffler device 100 and the shock-absorbing box 310 to prevent gas from leaking when the gas flows from the muffler device 100 to the shock-absorbing assembly 300. By way of example, the sealing member 40 may be mounted in a mounting groove 118 on the sound damping box 110.

Referring to fig. 3, a filter assembly 200 is disposed along the first gas passageway upstream of the first gas inlet 11 and is configured to filter the first gas. By way of example, fig. 6 illustrates a schematic structural diagram of a filter assembly 200 provided in accordance with an embodiment of the present application. Specifically, the filter assembly 200 may include a filter assembly mounting housing 210, a primary filter cartridge 220, a high efficiency filter cartridge 230, and a gasket 240.

The filter assembly mounting housing 210 includes a mounting housing inlet 211, a mounting housing outlet 212, and a mounting cavity 213 communicating the mounting housing inlet 211 and the mounting housing outlet 212.

The filter assembly mounting housing 210 is designed with a snap 214. When the filter assembly 200 is assembled with the sound damping box 110, the latch 214 is engaged with the latch groove 94 of the sound damping box 110. With this design, on the one hand, the filter assembly 200 is fixed in the filter assembly receiving cavity 114; on the other hand, the packing 240 is compressed between the sound-deadening cartridge 110 and the filter assembly mounting case 210, and improves the sealing performance between the sound-deadening cartridge 110 and the filter assembly mounting case 210.

The primary filter wool 220 and the high efficiency filter wool 230 are disposed within the filter assembly mounting housing 210 and are configured to filter the first gas.

The gasket 240 is disposed at one end of the mounting case outlet 212 and configured to enhance sealability at a connection portion of the filter assembly mounting case 210 and the sound-deadening cartridge 110, thereby preventing unfiltered first gas from entering the first gas channel 10.

The present application further provides a ventilator. The ventilator may include a fan assembly as described herein. As an example, the ventilator may include an inspiratory circuit. As an example, the fan assembly may be disposed on the suction air path.

The application provides a fan subassembly: a labyrinth silencing chamber is formed by a silencing piece and a silencing box at the upstream of a mixed gas inlet of the damping assembly, so that the noise of the turbine fan can be effectively reduced to be below 45 decibels; the damping component can effectively eliminate vibration in the working process of the turbine fan; the side wall of the labyrinth silencing chamber is provided with a high-pressure oxygen inlet, the high-pressure oxygen and air are mixed in a silencing component at the upstream of the turbine inlet, the mixed gas flows through the turbine, and the high-pressure oxygen and the air are further uniformly mixed under the stirring of turbine blades, so that the air and the oxygen are fully mixed, and the problem of nonuniform oxygen mixing of the conventional breathing machine is solved; the tail part of the fan, which is provided with the motor, is provided with a radiating fin which is matched with a radiating fan in the breathing machine, so that the heating of the motor can be effectively inhibited.

In conclusion, upon reading the present detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure can be presented by way of example only, and not limitation. Those skilled in the art will appreciate that the present application is intended to cover various reasonable variations, adaptations, and modifications of the embodiments described herein, although not explicitly described herein. Such alterations, improvements, and modifications are intended to be suggested by this disclosure, and are within the spirit and scope of the exemplary embodiments of this disclosure.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. For example, as used herein, the singular forms "a", "an", "the" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and/or "including," when used in this specification, mean that the associated integers, steps, operations, elements, and/or components are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "A on B" means that A is either directly adjacent (above or below) B or indirectly adjacent (i.e., separated by some material) to B; the term "A within B" means that A is either entirely within B or partially within B.

Furthermore, certain terminology has been used in this application to describe embodiments of the disclosure. For example, "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the disclosure.

It should be appreciated that in the foregoing description of embodiments of the disclosure, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of the subject disclosure. This application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains. This is not to be taken as an admission that any of the features of the claims are essential, and it is fully possible for a person skilled in the art to extract some of them as separate embodiments when reading the present application. That is, embodiments in the present application may also be understood as an integration of multiple sub-embodiments. And each sub-embodiment described herein is equally applicable to less than all features of a single foregoing disclosed embodiment.

In some embodiments, numbers expressing quantities or properties useful for describing and claiming certain embodiments of the present application are to be understood as being modified in certain instances by the terms "about", "approximately" or "substantially". For example, "about", "approximately" or "substantially" may mean a ± 20% variation of the value it describes, unless otherwise specified. Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the embodiments of the application are approximations, the numerical values set forth in the specific examples are reported as precisely as possible.

Each patent, patent application, publication of a patent application, and other material, such as articles, books, descriptions, publications, documents, articles, and the like, cited herein is hereby incorporated by reference. All matters hithertofore set forth herein except as related to any prosecution history, may be inconsistent or conflicting with this document or any prosecution history which may have a limiting effect on the broadest scope of the claims. Now or later associated with this document. For example, if there is any inconsistency or conflict in the description, definition, and/or use of terms associated with any of the contained materials with respect to the description, definition, and/or use of terms associated with this document, the terms in this document shall prevail.

Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Accordingly, the disclosed embodiments are presented by way of example only, and not limitation. Those skilled in the art can implement the invention in this application in alternative configurations according to the embodiments in this application. Thus, embodiments of the present application are not limited to those embodiments described with precision in the application.

Claims (10)

1. The utility model provides a fan subassembly which characterized in that includes damper and fan, wherein:

damping component includes shock attenuation box and shock attenuation piece, the shock attenuation box includes the holding chamber, the fan is at least partly in the holding intracavity, the shock attenuation piece is filled the fan with in the space between the shock attenuation box inner wall in order to reduce the vibrations of fan during operation, wherein, the shock attenuation box includes first opening and second opening, wherein:

the first opening corresponds to the air inlet of the fan and is communicated with the air inlet of the fan, so that the target gas is guided to the air inlet of the fan from the first opening; and

the second opening corresponds to the air outlet of the fan, and the target gas flowing out of the air outlet can flow out of the damping box to a downstream gas circuit through the second opening.

2. The fan assembly of claim 1, further comprising an air outlet connection tube having a hollow tube structure and comprising an outlet tube inlet and an outlet tube outlet, wherein:

the inlet of the air outlet pipe is communicated with the air outlet;

the air outlet pipe outlet is positioned outside the shock absorption box, wherein a detection interface is arranged at the part of the air outlet pipe positioned outside the shock absorption box.

3. The fan assembly according to claim 1, wherein an air inlet connecting portion is disposed in the damping box at a position corresponding to the first opening, the air inlet connecting portion has a hollow tube structure, and the first opening is an inlet of the hollow tube structure;

the fan assembly further comprises an air inlet connecting pipe, and two ends of the air inlet connecting pipe are respectively connected with the air inlet connecting portion and the air inlet of the fan, so that the air inlet connecting portion is communicated with the air inlet of the fan.

4. The fan assembly of claim 1, wherein the shock box further comprises a third opening;

the fan assembly further comprises an end cover, the end cover is arranged at one end, close to the third opening, of the damping box, the end cover is connected with the damping box so as to seal the third opening, and a fourth opening is arranged on the end cover to allow one end, connected with a motor, of the fan to extend out.

5. The blower assembly according to claim 1, wherein the damper box has a rectangular prism outer contour, the damper box has a main body portion formed by a first wall plate, a second wall plate, a third wall plate, a fourth wall plate, and a fifth wall plate, the first wall plate, the second wall plate, the third wall plate, the fourth wall plate, and the fifth wall plate enclose the accommodating cavity and form a third opening, the third opening is an inlet of the accommodating cavity, the damper member can enter the accommodating cavity through the third opening, wherein the first wall plate is opposite to the third opening and forms a bottom of the accommodating cavity, the second wall plate, the third wall plate, the fourth wall plate, and the fifth wall plate are sequentially connected to form a side wall of the accommodating cavity, and the second wall plate is opposite to the fourth wall plate, the third wall panel is opposite the fifth wall panel,

wherein: the first opening is formed in the outer surface of the first wall plate, the air inlet connecting portion comprises an inner pipeline extending from the first wall plate to the inside of the accommodating cavity, the second opening is formed in the outer surface of the second wall plate, the second opening comprises a through hole structure arranged on the second wall plate, the outer surface of the first wall plate is a plane, the outer surface of the first wall plate further comprises at least one mounting hole surrounding the periphery of the first opening, and the outer surface of the fourth wall plate further comprises a mounting foot protruding out of the fourth wall plate.

6. The fan assembly of claim 1, further comprising a noise reducing device disposed on a side of the damper assembly and configured to reduce noise of the target gas, the noise reducing device disposed upstream of the damper assembly in a direction of flow of the target gas, the noise reducing device comprising a first gas passage, a second gas passage, and a mixing chamber, the first gas passage and the second gas passage communicating with the mixing chamber, the first gas passage configured to direct a first gas from a first gas passage inlet to the mixing chamber, the second gas passage configured to direct a second gas from a second gas passage inlet to the mixing chamber, the first gas and the second gas mixing into the target gas in the mixing chamber, the mixing chamber comprising a mixing chamber outlet, the mixing chamber outlet communicates with the first opening to direct the target gas to the damper assembly,

wherein the silencer includes a silencer case and a plurality of silencers, the plurality of silencers are disposed in the silencer case, and the silencer forms the first gas passage and the mixing chamber, and the plurality of silencers include a silencer material and are configured to eliminate noise of gas entering the fan via the silencer.

7. The fan assembly of claim 6 wherein the second gas passage inlet is disposed at an end distal from the mixing chamber outlet.

8. The fan assembly of claim 6, further comprising:

and a sealing member disposed between the sound-deadening box and the shock-absorbing box to prevent leakage of gas when the gas flows from the sound-deadening device to the shock-absorbing assembly.

9. The fan assembly of claim 6, further comprising a filter assembly disposed along the first gas passageway upstream of the first gas inlet and configured to filter the first gas;

the silencing box further comprises a filter assembly accommodating cavity, the filter assembly accommodating cavity is communicated with the first gas inlet, and at least part of the filter assembly is arranged in the filter assembly accommodating cavity.

10. A ventilator comprising a blower assembly according to any one of claims 1-9.

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