CN217854101U - Breathing machine fan subassembly and breathing machine - Google Patents

Abstract

The utility model discloses a breathing machine fan subassembly and breathing machine, wherein breathing machine fan subassembly includes epitheca, inferior valve, fan and connects the subassembly that admits air of fan air inlet, admit air the subassembly and include along the first honeycomb duct that gaseous flow direction set gradually, first gas holds chamber, second honeycomb duct and the gaseous appearance chamber of second, the gaseous end of giving vent to anger that holds the chamber of second is connected with the fan air inlet, the inferior valve forms the gaseous appearance chamber of second with the periphery of fan, the gaseous appearance intracavity of second is equipped with arc guide plate and inferior valve amortization and separates the cotton. In the breathing machine fan subassembly that this application provided, through set up the arc guide plate in the gaseous appearance chamber of second, and then carry out the water conservancy diversion to gas, gas holds the intracavity at the second gas and separates cotton amortization through the inferior valve amortization, has reduced breathing machine fan subassembly's noise effectively.

Description

Breathing machine fan assembly and breathing machine

Technical Field

The utility model relates to the technical field of medical equipment, in particular to ventilator fan subassembly. The utility model discloses still relate to a breathing machine including above-mentioned breathing machine fan subassembly.

Background

The breathing machine as a vital medical device which can prevent and treat respiratory failure, reduce complications and save and prolong the life of a patient occupies a very important position in the modern medical field. The breathing machine judges the breathing state of the patient through collecting flow data in work, and then carries out targeted accurate effective control on the air output of the breathing machine, so as to ensure that the patient does not cause discomfort or even harm the life because of control problems.

The environment of use of the ventilator is typically nighttime and is placed near the bedside. The ventilator is provided with an internal fan for extracting air flow, and then the air flow is provided for a user through a humidifier.

However, the fan in the fan assembly of the ventilator can generate large noise during working, which affects the rest of the user.

Therefore, how to reduce the noise of the ventilator fan assembly is an urgent technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a breathing machine fan subassembly, this breathing machine fan subassembly's noise reduces. Another object of the utility model is to provide a respirator including above-mentioned respirator fan subassembly.

In order to achieve the above object, the utility model provides a breathing machine fan subassembly, including epitheca, inferior valve, fan and the subassembly that admits air of connecting the fan air inlet, the subassembly that admits air includes along the first honeycomb duct, first gas appearance chamber, second honeycomb duct and the gaseous appearance chamber of second that sets gradually of gas flow direction, and the end of giving vent to anger in the gaseous appearance chamber of second is connected with the fan air inlet, and the inferior valve forms the gaseous appearance chamber of second with the periphery of fan, and the gaseous appearance intracavity of second is equipped with arc guide plate and inferior valve amortization and separates the cotton.

Preferably, in the second gas containing cavity, the height of the lower shell noise reduction and isolation cotton at the gas flowing side position is lower than that of the lower shell noise reduction and isolation cotton at the gas isolation side.

Preferably, the air inlet of first honeycomb duct is located the inferior valve, and first honeycomb duct and second honeycomb duct all set up along the inferior valve inside wall, are equipped with air lock and water conservancy diversion hole in the first honeycomb duct.

Preferably, the fan is a brushless fan.

Preferably, the silencer further comprises a peripheral silencing and separating cotton sleeved on the outer side face of the fan, the upper shell and the periphery of the fan form a first gas containing cavity, and the first gas containing cavity is internally provided with the upper shell silencing and separating cotton.

Preferably, the fan noise reduction and insulation device further comprises support noise reduction and insulation cotton for supporting the fan, and the support noise reduction and insulation cotton is located below the lower shell noise reduction and insulation cotton.

Preferably, epitheca and inferior valve sealing connection, the periphery amortization separates cotton, fan, support the amortization and separates cotton, inferior valve amortization separates cotton, epitheca amortization and separates cotton all to set up in the sealed cavity that forms of epitheca and inferior valve.

Preferably, the periphery sound-deadening and sound-insulating cotton and/or the supporting sound-deadening and sound-insulating cotton and/or the lower shell sound-deadening and sound-insulating cotton and/or the upper shell sound-deadening and sound-insulating cotton are elastic foam cotton.

Preferably, the joint of the upper shell and the lower shell is provided with an upper shell sealing ring and a lower shell sealing ring;

an air outlet sealing ring is arranged at an air outlet of the fan, and an air inlet sealing ring is arranged at an air inlet of the first flow guide pipe;

the winding displacement position of the fan is provided with a fan winding displacement sealing ring.

A breathing machine comprises a breathing machine fan component, and the breathing machine fan component is any one of the breathing machine fan components.

In the technical scheme, the utility model provides a breathing machine fan subassembly includes epitheca, inferior valve, fan and connects the subassembly that admits air of fan air inlet, and the subassembly that admits air includes first honeycomb duct, first gaseous appearance chamber, second honeycomb duct and the gaseous appearance chamber of second that sets gradually along the gas flow direction, and the end of giving vent to anger in the gaseous appearance chamber of second is connected with the fan air inlet, and the inferior valve forms the gaseous appearance chamber of second with the periphery of fan, and the gaseous appearance intracavity of second is equipped with arc guide plate and inferior valve amortization and separates the cotton.

Can know through the aforesaid description, in the breathing machine fan subassembly that this application provided, through set up the arc guide plate in the gaseous appearance chamber of second, and then carry out the water conservancy diversion to gas, gas holds the intracavity at the second gas and separates cotton amortization, the noise of breathing machine fan subassembly through the inferior valve amortization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an exploded view of a position where a seal ring is disposed according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a fan according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a first flow guide pipe according to an embodiment of the present invention;

fig. 4 is an exploded view of a ventilator fan assembly according to an embodiment of the present invention.

Wherein in FIGS. 1-4: 1-a fan, 2-an air inlet sealing ring, 3-a lower shell sealing groove, 4-a fan winding displacement sealing ring, 5-an upper shell sealing ring, a lower shell sealing ring, 6-an air outlet sealing ring, 7-an upper shell sealing groove, 8-an upper shell, 9-an upper shell noise reduction and separation cotton, 10-a first flow guide pipe, 11-a periphery noise reduction and separation cotton, 12-a lower shell noise reduction and separation cotton, 13-an air resistance, 14-a lower shell, 15-a left support sponge and 16-a right support sponge.

Detailed Description

The core of the utility model is to provide a breathing machine fan subassembly, this breathing machine fan subassembly's noise reduces. The other core of the utility model is to provide a breathing machine comprising the above-mentioned fan assembly of the breathing machine.

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention is further described in detail with reference to the accompanying drawings and embodiments.

Please refer to fig. 1 to fig. 4.

In a specific implementation manner, the utility model discloses breathing machine fan subassembly that specific embodiment provided includes that epitheca 8, inferior valve 14, fan 1 and connect the subassembly that admits air of fan air inlet, and the subassembly that admits air includes that first honeycomb duct 10, first gas appearance chamber, second honeycomb duct and the gaseous appearance chamber of second that sets gradually along the gas flow direction.

The air outlet end of the second gas containing cavity is connected with the air inlet of the fan 1, the lower shell 14 and the periphery of the fan 1 form the second gas containing cavity, and an arc-shaped guide plate and lower shell silencing and isolating cotton 12 are arranged in the second gas containing cavity.

Specifically, the first draft tube 10 is installed at the air inlet, and preferably, an air inlet sealing ring 2 is arranged at the air inlet. Specifically, the air inlet is used for linking up the filter screen of breathing machine shell, and is airtight connection with breathing machine shell kneck.

Preferably, the inlet of the first duct 10 is located in the lower housing 14 and the outlet of the first duct 10 is located in the upper housing 8.

Specifically, the first guide pipe 10 is provided with an air lock 13 and a guide hole along the inner side wall of the lower casing 14. During operation, the air flow at the air inlet is rectified and then guided into the first air cavity of the upper shell 8 through the first guide pipe 10.

According to the above description, in the ventilator fan assembly provided by the embodiment of the present application, the arc-shaped guide plate is arranged in the second gas containing cavity, so that the gas is guided, and the gas is silenced in the second gas containing cavity through the lower shell to separate the 12 silenced sound of the cotton and the noise of the ventilator fan assembly.

In one embodiment, in the second gas containing chamber, the height of the lower shell sound-deadening septum 12 at the gas flow-through side position is lower than the height of the lower shell sound-deadening septum 12 at the gas-insulating side. The lower shell amortization that the gas flowed through the side separates cotton 12 and has the difference in height than the opposite side promptly, guarantees gaseous water conservancy diversion, and is specific, not through the gaseous flow through one side through the cotton 12 shutoff of lower shell amortization of lower shell, guarantee not have the airtight of gas flow through one side.

Specifically, preferably, the arc-shaped guide plates are multiple, an airflow channel is formed between every two adjacent arc-shaped guide plates, and the airflow channels correspond to the second guide pipes one to one. Specifically, the air outlet of the second flow guide pipe is located on the outer wall of the lower shell 14.

In one embodiment, the fan 1 is a brushless fan. Because brushless fan arouses that gas flow provides the air source when being used for rotating, small, the small just produces the heat little, does not need additionally to increase heat dissipation module, and small in size is guaranteed to the while of small in noise.

On the basis of the above schemes, preferably, the ventilator fan assembly further comprises a peripheral sound-deadening cotton-isolating 11 sleeved on the outer side surface of the fan 1. Specifically, the height of the peripheral sound-deadening and isolating cotton 11 is determined according to the height of the fan 1, and the peripheral sound-deadening and isolating cotton 11 is preferably of an integral structure

The upper shell 8 and the periphery of the fan 1 form a first gas containing cavity, and an upper shell silencing and cotton separating 9 is arranged in the first gas containing cavity. Specifically, the first gas cavity may be located at the top end of the blower 1.

The ventilator fan assembly further comprises a supporting noise reduction and separation cotton for supporting the fan 1, and the supporting noise reduction and separation cotton is positioned below the lower shell noise reduction and separation cotton 12. Specifically, one or more supporting noise reduction and insulation cotton may be provided. The supporting noise reduction and separation cotton body can comprise a left supporting sponge 15 and a right supporting sponge 16 which are horizontally arranged in parallel.

In a specific implementation mode, the upper shell 8 is connected with the lower shell 14 in a sealing mode, the periphery silencing and separating cotton 11, the fan 1, the supporting silencing and separating cotton, the lower shell silencing and separating cotton 12 and the upper shell silencing and separating cotton 9 are all arranged in a cavity formed by the upper shell 8 and the lower shell 14 in a sealing mode. A closed cavity is formed in the ventilator fan component, and the fan 1 is arranged in the closed space of the sealed cavity, so that the purpose of noise reduction is achieved.

Because the upper and lower peripheries and the periphery of the fan 1 are all provided with the noise reduction and insulation cotton, the fan 1 can be sealed in a closed space, and the noise is effectively eliminated.

The periphery noise reduction and isolation cotton 11 and/or the support noise reduction and isolation cotton and/or the lower shell noise reduction and isolation cotton 12 and/or the upper shell noise reduction and isolation cotton 9 are elastic foam cotton and are made of shock absorption high-density materials. Specifically, all separate the cotton and adopt high density to have elastic bubble cotton, play the absorbing effect when the amortization.

A second flow conduit is provided along the inner side wall of the lower shell 14 for directing the gas flow to a second gas cavity. Specifically, the arc-shaped guide plate is arranged at the bottom of the second gas cavity. During specific work, gas passes through the first flow guide pipe 10, and after the gas flow is rectified by the gas resistor 13, the flow rate of the gas flow is high, and the first gas cavity plays a role in buffering the gas flow entering the gas chamber. Then the gas is guided to the second gas cavity through the second guide pipe, and finally the gas flow is guided to the fan 1. The first draft tube 10 and the second draft tube are disposed on the lower case 14 to form a wall column draft layer.

The design of this application gaseous water conservancy diversion accords with hydrodynamics, sets up first gaseous appearance chamber as buffering appearance chamber after first honeycomb duct 10 rectification, makes the air current can follow the slow drainage of second honeycomb duct to fan 1 on the one hand, and on the other hand buffering makes the noise reduction that the air current produced. Meanwhile, the second gas cavity is provided with an arc-shaped guide plate, so that gas is finally guided to the fan 1.

In one embodiment, upper and lower shell seals 5 are provided where the upper and lower shells 8, 14 abut. Preferably, 8 lower extremes on the epitheca are equipped with shell seal groove 7, and 14 upper ends on the inferior valve are equipped with shell seal groove 3 down, and last lower shell sealing washer 5 is installed in last shell seal groove 7 and shell seal groove 3 down. Specifically, the upper and lower casing sealing rings 5 have soft elastic performance and are arranged in the upper casing sealing groove 7 and the lower casing sealing groove 3 to form interference sealing.

Specifically, an air outlet sealing ring 6 is arranged at an air outlet of the fan 1.

In a specific embodiment, the winding displacement position of the fan 1 is provided with the fan winding displacement sealing ring 4, the fan winding displacement penetrates out from the center of the fan winding displacement sealing ring 4, the sealing performance of the upper shell 8 and the lower shell 14 is not affected, and when the upper shell 8 is tightly connected with the lower shell 14, the winding displacement and the fan winding displacement sealing ring 4 are full, so that the sealing effect is achieved.

This application is through setting up a plurality of above-mentioned sealing washers for the sealed design has all been carried out to epitheca 8, inferior valve 14, air inlet department, gas outlet department, fan winding displacement derivation department, guarantees the leakproofness of whole subassembly junction.

Preferably, the silencing and isolating cotton in the air passage of the ventilator fan assembly is provided with activated carbon, for example, the surface of the lower shell silencing and isolating cotton 12 and/or the upper shell silencing and isolating cotton 9 is provided with activated carbon to adsorb impurities in the air passage. The sound deadening cotton wool in the airway of the ventilator fan assembly is preferably a sponge foam.

The utility model provides an epitheca 8 and inferior valve 14 are inside, form air current buffer layer (first gaseous appearance chamber), wall post water conservancy diversion layer (first honeycomb duct 10 and second honeycomb duct) and bottom direction layer (the gaseous appearance chamber of second), make gaseous trend more reasonable, accord with gas hydrodynamics, small in noise and subassembly compact structure are small and exquisite, are convenient for extensively use widely.

The application provides a respirator, including respirator fan subassembly, wherein respirator fan subassembly is above-mentioned any kind of respirator fan subassembly. The foregoing describes a specific structure of a ventilator fan assembly, and the present application includes the ventilator fan assembly as described above, and also has the technical effects as described above.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a breathing machine fan subassembly, its characterized in that includes epitheca (8), inferior valve (14), fan (1) and connects the subassembly that admits air of fan (1) air inlet, the subassembly that admits air includes along first honeycomb duct (10), first gas chamber, second honeycomb duct and the gaseous appearance chamber that holds that sets gradually of gas flow direction, the second gas chamber give vent to anger hold with fan (1) air inlet is connected, inferior valve (14) with the periphery of fan (1) forms the gaseous chamber that holds of second, the gaseous intracavity of second is equipped with arc guide plate and inferior valve amortization and separates cotton (12).

2. The ventilator fan assembly of claim 1 wherein the height of the lower shell sound-deadening septum (12) at the gas flow-through side position is lower than the height of the lower shell sound-deadening septum (12) at the gas-insulating side in the second gas chamber.

3. The ventilator fan assembly of claim 1, wherein the air inlet of the first flow guide tube (10) is located in the lower casing (14), the first flow guide tube (10) and the second flow guide tube are both disposed along the inner sidewall of the lower casing (14), and the first flow guide tube (10) is provided therein with an air resistor (13) and a flow guide hole.

4. The ventilator fan assembly of claim 1 wherein the fan (1) is a brushless fan.

5. The fan assembly of the breathing machine according to any one of claims 1-4, further comprising a peripheral sound-deadening cotton-separating sheet (11) sleeved on an outer side surface of the fan (1), wherein the upper shell (8) and the periphery of the fan (1) form the first gas accommodating chamber, and an upper shell sound-deadening cotton-separating sheet (9) is arranged in the first gas accommodating chamber.

6. The ventilator fan assembly of claim 5 further comprising a support noise dampening and insulation cotton for supporting the fan (1), the support noise dampening and insulation cotton being located below the lower shell noise dampening and insulation cotton (12).

7. The ventilator fan assembly according to claim 6, wherein the upper shell (8) is hermetically connected to the lower shell (14), and the peripheral sound-deadening and cotton-separating unit (11), the fan (1), the supporting sound-deadening and cotton-separating unit, the lower shell sound-deadening and cotton-separating unit (12), and the upper shell sound-deadening and cotton-separating unit (9) are all disposed in a cavity formed by the upper shell (8) and the lower shell (14) in a sealing manner.

8. The ventilator fan assembly of claim 7 wherein the peripheral acoustic baffle cotton (11) and/or the support acoustic baffle cotton and/or the lower shell acoustic baffle cotton (12) and/or the upper shell acoustic baffle cotton (9) are resilient foam.

9. The ventilator fan assembly of claim 7 wherein an upper and lower shell seal ring (5) is provided at the abutment of the upper shell (8) and the lower shell (14);

an air outlet sealing ring (6) is arranged at an air outlet of the fan (1), and an air inlet sealing ring (2) is arranged at an air inlet of the first flow guide pipe (10);

and a fan flat cable sealing ring (4) is arranged at the flat cable position of the fan (1).

10. A ventilator comprising a ventilator fan assembly, wherein the ventilator fan assembly is the ventilator fan assembly of any of claims 1-9.

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