Air passage structure with noise reduction and heat dissipation functions and breathing machine

Abstract

The utility model provides an airway structure with noise reduction and heat dissipation functions and a breathing machine, and relates to the technical field of breathing treatment equipment. The air channel structure comprises an air chamber shell and an elastic block body, an air inlet and an air outlet are formed in the air chamber shell, the elastic block body is installed in the air chamber shell, and the inner wall face of the air chamber shell is connected with the outer wall face of the elastic block body in a sealed mode. A positioning cavity and a zigzag groove are formed in the elastic block body, the head end of the zigzag groove is communicated with the air inlet, the tail end of the zigzag groove is communicated with the air outlet, and the zigzag groove passes through the positioning cavity. The fan is installed in the positioning cavity of the elastic block body, noise generated when the fan operates can be prevented from spreading outwards, and therefore noise is effectively reduced. The zigzag groove passes through the positioning cavity where the fan is installed, and the fan can be cooled through gas before the fan sucks the gas. The air channel structure has the noise reduction function and the heat dissipation function at the same time. The utility model further provides a breathing machine which has all the functions of the airway structure.

Description

Technical Field

[0001] The utility model relates to the technical field of respiratory therapy equipment, and in particular to an airway structure and a ventilator with both noise reduction and heat dissipation. Background Art

[0002] The fan in high-flow respiratory therapy equipment is used to inhale, compress, and deliver gas to aid breathing. Both when gas is drawn into the fan and during operation, it generates considerable noise, which can adversely affect the user's sleep quality. Currently, the mainstream noise reduction method used by respiratory therapy equipment on the market involves designing complex airways that reduce noise by reducing the gas flow rate. However, this noise-reducing airway requires assembly of multiple plastic parts, making its manufacture and assembly complex. Furthermore, the fan generates heat during operation. The fan itself is located in a cramped space and lacks dedicated auxiliary heat dissipation devices, resulting in long-term high-temperature operation. The designed noise-reducing airway cannot assist in dissipating heat. Utility Model Content

[0003] The utility model provides an air duct structure with both noise reduction and heat dissipation, which can achieve noise reduction and heat dissipation for the fan at the same time.

[0004] The utility model also provides a ventilator, which can achieve noise reduction and heat dissipation for the fan at the same time.

[0005] The embodiment of the present utility model can be implemented as follows:

[0006] The embodiment of the present invention provides an air duct structure with both noise reduction and heat dissipation, which includes:

[0007] An air chamber shell is provided with an air inlet and an air outlet;

[0008] And an elastic block, the elastic block is installed in the air chamber shell, and the inner wall surface of the air chamber shell is sealed with the outer wall surface of the elastic block; a positioning chamber and a zigzag groove are opened on the elastic block, the head end of the zigzag groove is connected with the air inlet, the end of the zigzag groove is connected with the air outlet, and the zigzag groove passes through the positioning chamber, and the positioning chamber is used to install the fan.

[0009] Optionally, the zigzag groove includes a first groove, a second groove, a third groove, a fourth groove, a fifth groove and a sixth groove connected in sequence, and the first groove, the second groove, the third groove, the fourth groove, the fifth groove and the sixth groove are respectively located on different side walls of the elastic block.

[0010] Optionally, the elastic block is shaped like a cube, the positioning chamber is arranged in the middle of the cube, the first groove is located on the front side wall of the cube, the second groove is located on the bottom side wall of the cube, the third groove is located on the right side wall of the cube, the fourth groove is located on the upper side wall of the cube, the fifth groove is located on the left side wall of the cube, and the sixth groove is located on the bottom side wall of the cube, and the sixth groove and the second groove are not connected to each other.

[0011] Optionally, the air chamber housing includes a front side plate, a left side plate, a rear side plate, a right side plate and a bottom side plate, the front side plate, the left side plate, the rear side plate, the right side plate and the bottom side plate together form a semi-enclosed chamber, and the elastic block is installed in the semi-enclosed chamber;

[0012] The front side plate is sealed to the front side wall of the elastic block, the left side plate is sealed to the left side wall of the elastic block, the rear side plate is sealed to the rear side wall of the elastic block, the right side plate is sealed to the right side wall of the elastic block, and the bottom side plate is sealed to the bottom side wall of the elastic block;

[0013] The air inlet is located on the front side panel, and the air outlet is located on the rear side panel.

[0014] Optionally, the upper side wall of the elastic block is covered with a gasket, and the gasket is sealed to the elastic block.

[0015] Optionally, the airway structure further includes a top cover, which is connected to the air chamber shell.

[0016] Optionally, the top cover is threadedly connected to the air chamber housing.

[0017] Optionally, the fan includes an air inlet duct and an air exhaust duct, the air inlet duct is connected to the end of the zigzag groove, and the air exhaust duct is connected to the air outlet.

[0018] Optionally, an air outlet connector is provided at the air outlet, and the air outlet connector is connected to an exhaust duct of the fan.

[0019] The utility model also provides a ventilator, which comprises the airway structure with both noise reduction and heat dissipation.

[0020] The beneficial effects of the airway structure and ventilator with both noise reduction and heat dissipation in the embodiments of the present invention include, for example:

[0021] The air duct structure includes an air chamber shell and an elastic block. The air chamber shell is provided with an air inlet and an air outlet. The elastic block is installed in the air chamber shell, and the inner wall surface of the air chamber shell is sealed with the outer wall surface of the elastic block. The elastic block is provided with a positioning chamber and a zigzag groove. The head end of the zigzag groove is connected to the air inlet, and the end of the zigzag groove is connected to the air outlet. The zigzag groove passes through the positioning chamber, and the positioning chamber is used to install a fan. The fan is installed in the positioning chamber of the elastic block. On the one hand, it can block the noise generated by the fan during operation from propagating outward. On the other hand, the elastic block can absorb the noise generated when the gas enters the fan and the noise generated by the vibration of the fan during operation, thereby effectively reducing noise. Since the zigzag groove for gas circulation is provided on the elastic block and passes through the positioning chamber for installing the fan, the fan can use the gas to dissipate heat to the fan itself before inhaling the gas. The air duct structure has both noise reduction and heat dissipation functions and has a simple structure.

[0022] An embodiment of the present invention further provides a ventilator, which includes an airway structure with both noise reduction and heat dissipation, and has all the functions of an airway structure with both noise reduction and heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram from a first perspective of an air duct structure with both noise reduction and heat dissipation provided in an embodiment of the present utility model;

[0025] Figure 2 A schematic diagram from a second perspective of the air duct structure with both noise reduction and heat dissipation provided in an embodiment of the present utility model;

[0026] Figure 3 A schematic diagram of the arrangement of the air chamber housing and the elastic block is provided in an embodiment of the present utility model;

[0027] Figure 4 A schematic structural diagram of an air chamber housing is provided in an embodiment of the present utility model;

[0028] Figure 5 A schematic diagram of the elastic block structure provided in an embodiment of the present utility model from a first perspective;

[0029] Figure 6 A second perspective schematic diagram of the elastic block structure provided in an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram from a third perspective of the elastic block structure provided in an embodiment of the present utility model.

[0031] Icon: 1-air chamber shell; 10-front side panel; 101-air inlet; 11-left side panel; 12-rear side panel; 121-air outlet; 13-right side panel; 14-bottom side panel; 2-elastic block; 20-positioning chamber; 211-first groove; 212-second groove; 213-third groove; 214-fourth groove; 215-fifth groove; 216-sixth groove; 3-gasket; 4-top cover; 5-air outlet connector. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0036] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0037] The terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0038] Unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0039] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0040] High-flow respiratory therapy equipment is a medical device used to treat or prevent respiratory failure in patients. It is equipped with a fan that is used to inhale, compress, and output gas. Both when gas is inhaled into the fan and during operation, the fan generates a lot of noise, which can adversely affect the patient's sleep quality. Currently, the mainstream noise reduction method used by respiratory therapy equipment on the market is to design complex airways that reduce noise by reducing the flow rate of gas. However, this type of noise-reducing airway requires assembly of multiple plastic products, making it relatively complex to manufacture and assemble. Furthermore, the fan generates heat during operation. The fan itself is located in a narrow space and lacks a dedicated auxiliary heat dissipation device, causing the fan to operate at high temperatures for long periods of time, affecting its service life. The designed noise-reducing airway cannot assist in dissipating heat from the fan and does not have the function of assisting the fan in dissipating heat.

[0041] The airway structure and ventilator with both noise reduction and heat dissipation provided in the embodiments of the present invention can solve the above-mentioned problems, which will be described in detail below.

[0042] Please refer to Figures 1 to 3An air duct structure that combines noise reduction and heat dissipation includes an air chamber shell 1 and an elastic block 2. The elastic block 2 is installed in the air chamber shell 1, and the inner wall surface of the air chamber shell 1 is sealed with the outer wall surface of the elastic block 2. The air chamber shell 1 is provided with an air inlet 101 and an air outlet 121. The elastic block 2 is provided with a positioning chamber 20 and a zigzag groove. The head end of the zigzag groove is connected to the air inlet 101, and the terminal end of the zigzag groove is connected to the air outlet 121. The zigzag grooves on the air chamber shell 1 and the elastic block 2 cooperate to form a complete air duct. The zigzag groove passes through the positioning chamber 20. A fan is installed in the positioning chamber 20. The fan is not shown in the figure.

[0043] Since the fan is installed in the positioning chamber 20 of the elastic block 2, the elastic block 2 is also provided with an air duct formed by a zigzag groove. After the fan inhales gas from the air inlet 101, the gas first passes through the air duct to reduce speed and noise. The fan is installed in the positioning chamber 20 of the elastic block 2, which can block the noise generated by the fan during operation from propagating outward, thereby effectively reducing noise. When the gas in the zigzag groove flows through the positioning chamber 20, the fan can be cooled. The air duct structure can not only effectively reduce noise, but also dissipate heat and cool the fan, thereby increasing the service life of the fan.

[0044] In this embodiment, the gas sucked in and compressed by the fan generally refers to air.

[0045] refer to Figure 4 The air chamber shell 1 includes a front side plate 10, a left side plate 11, a rear side plate 12, a right side plate 13 and a bottom side plate 14. The front side plate 10, the left side plate 11, the rear side plate 12, the right side plate 13 and the bottom side plate 14 are all rectangular plates. The front side plate 10, the left side plate 11, the rear side plate 12, the right side plate 13 and the bottom side plate 14 are surrounded to form a semi-enclosed chamber. The elastic block 2 is installed in the semi-enclosed chamber. The elastic block 2 is tightly attached to the inner wall of the semi-enclosed chamber to form a sealed connection.

[0046] When the elastic block 2 is installed into the air chamber shell 1, the front side plate 10 of the air chamber shell 1 is sealed with the front side wall of the elastic block 2, the left side plate 11 of the air chamber shell 1 is sealed with the left side wall of the elastic block 2, the rear side plate 12 of the air chamber shell 1 is sealed with the rear side wall of the elastic block 2, the right side plate 13 of the air chamber shell 1 is sealed with the right side wall of the elastic block 2, and the bottom side plate 14 of the air chamber shell 1 is sealed with the bottom side wall of the elastic block 2.

[0047] The air inlet 101 is located on the front side panel 10, and the air outlet 121 is located on the rear side panel 12. The air inlet 101 and the air outlet 121 are arranged opposite each other. The fan in this embodiment includes an air inlet duct and an air outlet duct. The air inlet duct is connected to the end of the zigzag groove, and the air outlet duct is connected to the air outlet 121. Specifically, an air outlet connector 5 is provided at the air outlet 121. One end of the air outlet connector 5 is connected to the exhaust duct of the fan, and the other end of the air outlet connector 5 is connected to other external equipment for transmitting the compressed air of the fan to other external equipment. Here, the head end of the zigzag groove refers to the inlet side of the airflow, and the end of the zigzag groove refers to the outlet side of the airflow.

[0048] refer to Figures 5 to 7 The elastic block 2 is in the shape of a cube, the positioning chamber 20 is arranged in the middle of the cube, and the zigzag groove is opened along the outer wall of the elastic block 2. The zigzag groove includes a first groove 211, a second groove 212, a third groove 213, a fourth groove 214, a fifth groove 215 and a sixth groove 216 which are connected in sequence. The first groove 211, the second groove 212, the third groove 213, the fourth groove 214, the fifth groove 215 and the sixth groove 216 are respectively located on different side walls of the elastic block 2.

[0049] Specifically, the first groove 211 is located on the front side wall of the cube, the second groove 212 is located on the bottom side wall of the cube, the third groove 213 is located on the right side wall of the cube, the fourth groove 214 is located on the upper side wall of the cube, the fifth groove 215 is located on the left side wall of the cube, and the sixth groove 216 is located on the bottom side wall of the cube, and the sixth groove 216 is not connected to the second groove 212.

[0050] The upper side wall of the elastic block 2 is covered with a gasket 3, which is sealed to the elastic block 2. The gasket 3 and the fourth groove 214 on the elastic block 2 cooperate to form a part of the air duct. This part of the air duct is located above the fan, and the air flow passing through it can dissipate heat and cool the fan; wherein, the gasket 3 can be a rubber pad or other plastic pad.

[0051] It is worth mentioning that the description of the front, back, left, right, top (upper), and bottom directions of the elastic block 2 in this embodiment is consistent with the directions of the air chamber shell 1 .

[0052] In this embodiment, the elastic block 2 can be a dense sponge, with the positioning chamber 20 and the zigzag groove formed by cutting and digging holes in the dense sponge. The dense sponge is not only easy to process, but also provides excellent vibration damping when the fan is embedded in the positioning chamber 20 of the dense sponge, thereby reducing noise generation. The positioning chamber 20 on the dense sponge is compatible with the fan, and the fan does not shake when embedded in the positioning chamber 20.

[0053] Reference again Figure 1The air duct structure also includes a top cover 4, which is arranged on the upper part of the gasket 3. On the one hand, it presses the gasket 3, and on the other hand, the top cover 4 is also connected to the air chamber shell 1, so that the elastic block 2 and the fan are stably located in the air chamber shell 1.

[0054] A first screw hole is also provided on the side wall of the top cover 4, and a second screw hole is provided on the side wall of the air chamber shell 1. The positions of the first screw hole and the second screw hole correspond to each other and have the same hole diameter. The top cover 4 is connected to the air chamber shell 1 by bolts or screws to achieve a detachable threaded connection.

[0055] The airflow path in the air duct structure of this embodiment is: air inlet 101 -> first groove 211 -> second groove 212 -> third groove 213 -> fourth groove 214 -> fifth groove 215 -> sixth groove 216 -> air inlet duct of fan -> fan -> exhaust duct of fan -> air outlet connector 5 -> other equipment.

[0056] The air duct structure of the embodiment of the utility model has fewer overall components, a simple structure, and is easy to assemble. It can not only reduce noise but also dissipate heat for the fan.

[0057] An embodiment of the present invention further provides a ventilator, comprising the above-mentioned airway structure with both noise reduction and heat dissipation, which has all the functions of the airway structure with both noise reduction and heat dissipation.

[0058] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An airway structure with both noise reduction and heat dissipation, characterized in that: include: An air chamber housing (1), wherein the air chamber housing (1) is provided with an air inlet (101) and an air outlet (121); and an elastic block (2), wherein the elastic block (2) is installed in the air chamber shell (1), and the inner wall surface of the air chamber shell (1) is sealed with the outer wall surface of the elastic block (2); a positioning chamber (20) and a zigzag groove are provided on the elastic block (2), the head end of the zigzag groove is connected to the air inlet (101), the end of the zigzag groove is connected to the air outlet (121), and the zigzag groove passes through the positioning chamber (20), and the positioning chamber (20) is used to install a fan.

2. The airway structure with both noise reduction and heat dissipation according to claim 1, characterized in that: The zigzag groove comprises a first groove (211), a second groove (212), a third groove (213), a fourth groove (214), a fifth groove (215) and a sixth groove (216) which are connected in sequence; the first groove (211), the second groove (212), the third groove (213), the fourth groove (214), the fifth groove (215) and the sixth groove (216) are respectively located on different side walls of the elastic block (2).

3. The airway structure with both noise reduction and heat dissipation according to claim 2, characterized in that: The elastic block (2) is in the shape of a cube, the positioning chamber (20) is arranged in the middle of the cube, the first groove (211) is located on the front side wall of the cube, the second groove (212) is located on the bottom side wall of the cube, the third groove (213) is located on the right side wall of the cube, the fourth groove (214) is located on the upper side wall of the cube, the fifth groove (215) is located on the left side wall of the cube, and the sixth groove (216) is located on the bottom side wall of the cube, and the sixth groove (216) and the second groove (212) are not connected to each other.

4. The airway structure with both noise reduction and heat dissipation according to claim 3, characterized in that: The air chamber housing (1) comprises a front side plate (10), a left side plate (11), a rear side plate (12), a right side plate (13) and a bottom side plate (14); the front side plate (10), the left side plate (11), the rear side plate (12), the right side plate (13) and the bottom side plate (14) together form a semi-enclosed chamber, and the elastic block (2) is installed in the semi-enclosed chamber; The front side plate (10) is in sealed connection with the front side wall of the elastic block (2), the left side plate (11) is in sealed connection with the left side wall of the elastic block (2), the rear side plate (12) is in sealed connection with the rear side wall of the elastic block (2), the right side plate (13) is in sealed connection with the right side wall of the elastic block (2), and the bottom side plate (14) is in sealed connection with the bottom side wall of the elastic block (2); The air inlet (101) is located on the front side panel (10), and the air outlet (121) is located on the rear side panel (12).

5. The air duct structure with both noise reduction and heat dissipation according to claim 4, characterized in that: The upper side wall of the elastic block (2) is covered with a gasket (3), and the gasket (3) is sealed to the elastic block (2).

6. The air duct structure with both noise reduction and heat dissipation according to claim 1, characterized in that: The airway structure further comprises a top cover (4), and the top cover (4) is connected to the air chamber shell (1).

7. The air duct structure with both noise reduction and heat dissipation according to claim 6, characterized in that: The top cover (4) is threadedly connected to the air chamber shell (1).

8. The air duct structure with both noise reduction and heat dissipation according to any one of claims 1 to 7, characterized in that: The fan comprises an air inlet duct and an air exhaust duct, wherein the air inlet duct is connected to the end of the zigzag groove, and the air exhaust duct is connected to the air outlet (121).

9. The air duct structure with both noise reduction and heat dissipation according to claim 8, characterized in that: An air outlet connector (5) is provided at the air outlet (121), and the air outlet connector (5) is connected to the exhaust duct of the fan.

10. A ventilator, characterized in that: It comprises the air duct structure having both noise reduction and heat dissipation as described in any one of claims 1 to 9.

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