High-efficiency mute type small oxygen generator

Abstract

The invention discloses an efficient mute type small oxygen generator, and belongs to the technical field of small oxygen generator production, the efficient mute type small oxygen generator comprises a shell, a compressor, an oxygen generation assembly, a heat dissipation fan, a water cooling assembly and a vacuum sound insulation cover, the water cooling assembly comprises a cold water tank, a water pump, a water cooling support and a heat dissipation water pipe, the water cooling support is installed on the shell, and the heat dissipation water pipe is installed on the water cooling support; the cooling fan is installed on the water-cooling support, the wind direction of the cooling fan is aligned with the cooling water pipe, the cold water tank and the water pump are installed on the water-cooling support, the cooling water pipe, the cold water tank, the water pump and a cylinder body water-cooling channel of the air cylinder body are connected with one another, the vacuum sound-proof cover is installed on the integrated bottom plate in a sealed mode, and the compressor is arranged in the vacuum sound-proof cover. The compressor can be installed in the vacuum sound insulation cover in a full-sealing mode, the mute effect is remarkably improved, meanwhile, the requirements of a small oxygen generator on the aspects of efficient mute and good heat dissipation performance are met, the use comfort of a user is remarkably improved, and the small oxygen generator is particularly suitable for being used at home and on a vehicle.

Description

Technical Field

[0001] The invention belongs to the technical field of production of small oxygen generators, and in particular relates to a high-efficiency and silent small oxygen generator. Background Art

[0002] In order to facilitate oxygen inhalation at any time and benefit health, more and more families purchase small oxygen concentrators for oxygen inhalation at home, and the demand for small oxygen concentrators is increasing. Since small oxygen concentrators are generally used in homes and other places where the internal space is not very large, users have higher and higher requirements for the quiet performance of small oxygen concentrators, so that they can inhale oxygen in a quiet environment, especially for elderly patients, it is very important to inhale oxygen in a quiet environment; at the same time, in order to make it easy to carry when going out, such as taking a small oxygen concentrator with you during travel to facilitate oxygen inhalation at any time in plateau areas, there are increasingly higher requirements for the high efficiency, quietness and good heat dissipation performance of small oxygen concentrators.

[0003] Traditional small oxygen concentrators cannot meet the requirements of high efficiency, quietness and good heat dissipation performance at the same time. The reason is that the air compressor of the small oxygen concentrator generally uses a piston compressor to provide high-pressure air for the oxygen production components (such as molecular sieves). Its vibration noise is large and difficult to eliminate, and the operation of the compressor will generate a lot of heat, so the compressor must be cooled. The traditional heat dissipation method is to install a cooling fan next to the compressor. The traditional noise reduction method is to install a sound insulation cover to cover the compressor and the cooling fan as a whole. Because this structure requires vents for the operation of the cooling fan, the noise of the compressor will always be transmitted to the outside of the machine through the vents. Although the noise can be reduced to a certain extent by reducing the vents, increasing sound insulation materials, and improving sealing performance, it is still impossible to significantly reduce the noise fundamentally. Summary of the invention

[0004] The purpose of the present invention is to provide a small oxygen concentrator with high efficiency and low noise in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A high-efficiency and silent small oxygen concentrator comprises a shell, a compressor, an oxygen-making component and a cooling fan, wherein the compressor and the oxygen-making component are both installed in the shell and are connected to each other, the compressor is installed on an integrated bottom plate, a cylinder body is provided on the compressor, the high-efficiency and silent small oxygen concentrator further comprises a water-cooling component and a vacuum soundproof cover, the water-cooling component comprises a cold water tank, a water pump, a water-cooling bracket and a cooling water pipe, the water-cooling bracket is installed on the outer wall of the shell, the cooling water pipe formed by multiple bends is installed on the water-cooling bracket, the cooling fan is installed on the water-cooling bracket and the wind direction is aligned with the cooling water pipe, the cold water tank and the water pump are respectively installed on the outer wall of the shell, and the cooling water pipe is installed on the cooling water tank. On the water-cooling bracket, the water outlet of the heat dissipation water pipe is connected to the water inlet of the cold water tank, and the water outlet of the cold water tank is connected to the water inlet of the water pump. A cylinder water cooling channel is provided on the cylinder body, and the water inlet end of the cylinder water cooling channel is communicated with the water outlet of the water pump through a water pipe and the bottom plate cold water channel inside the integrated bottom plate, and the water outlet end of the cylinder water cooling channel is communicated with the water inlet of the heat dissipation water pipe through a water pipe and the bottom plate hot water channel inside the integrated bottom plate. The vacuum sound insulation cover is sealed and installed on the integrated bottom plate, and the compressor is placed in the vacuum sound insulation cover. A vacuum extraction joint for vacuum extraction is provided on the outer wall of the vacuum sound insulation cover.

[0007] Preferably, in order to achieve better water-cooling heat dissipation effect and facilitate processing and assembly, the cylinder body is located at the upper part of the compressor, and a water-cooling groove is provided on the upper part of the cylinder body. The upper part of the water-cooling groove is sealed and connected (preferably welded) with a water-cooling cover plate, and the water-cooling groove and the water-cooling cover plate together constitute the cylinder body water cooling channel.

[0008] Preferably, in order to further improve the water-cooling heat dissipation effect, the water-cooling groove and the water-cooling cover plate both include arc segments and are located above the gas compression channel in the cylinder body.

[0009] Preferably, in order to improve the cooling effect of the cooling fan on the hot water in the cooling water pipe, the cooling water pipe is a flat water pipe and is formed into a cooling fin tube through a plurality of "Z"-shaped bends.

[0010] Preferably, in order to facilitate processing and assembly, the shell includes a middle shell, a bottom shell, a first end shell and a second end shell, the two ends and the bottom of the middle shell are open, the bottom shell is connected to the bottom of the middle shell, the integrated base plate is installed on the bottom shell, the first end shell and the second end shell are respectively connected to the two ends of the middle shell, the water cooling bracket is installed on the outer wall of the first end shell, the first end shell is provided with a plurality of ventilation holes, and the second end shell is installed with a power interface and a power switch.

[0011] The beneficial effects of the present invention are:

[0012] The present invention changes the heat dissipation of the compressor in the small oxygen concentrator from air heat dissipation to cold water heat dissipation, and introduces cold water into the cylinder water cooling channel in the cylinder body of the compressor through the channel in the integrated bottom plate, and leads hot water from the cylinder body of the compressor to the heat dissipation water pipe of the water cooling component, so that the compressor can be fully sealed and installed in the vacuum soundproof cover, which significantly reduces the noise spillover of the compressor and improves the quiet effect. At the same time, it takes into account the requirements of the small oxygen concentrator in terms of high efficiency, quietness and good heat dissipation performance, significantly improves the user comfort, and is particularly suitable for home and vehicle use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the high-efficiency silent small oxygen concentrator of the present invention after assembly;

[0014] Figure 2 This is a three-dimensional exploded view of the high-efficiency silent small oxygen concentrator of the present invention before assembly without the middle shell. Figure 1 Different perspectives;

[0015] Figure 3 It is a three-dimensional diagram of the integrated bottom plate, compressor, water cooling component, vacuum soundproof cover and heat dissipation fan of the high-efficiency silent small oxygen concentrator of the present invention after assembly;

[0016] Figure 4 It is a three-dimensional diagram of the integrated bottom plate, compressor, water cooling component and heat dissipation fan of the high-efficiency silent small oxygen concentrator of the present invention after assembly;

[0017] Figure 5 It is a three-dimensional exploded view of the integrated bottom plate, compressor and vacuum soundproof cover of the high-efficiency silent small oxygen concentrator of the present invention before assembly;

[0018] Figure 6 It is a three-dimensional exploded view of the water cooling assembly and the heat dissipation fan of the high-efficiency silent small oxygen concentrator of the present invention before assembly;

[0019] Figure 7 It is a top view of the cylinder body of the compressor of the high-efficiency silent small oxygen concentrator of the present invention;

[0020] Figure 8 yes Figure 7 AA section view in. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings:

[0022] like Figure 1-Figure 8As shown, the high-efficiency silent small oxygen generator of the present invention includes a shell (refer to the middle shell 7, the bottom shell 8, the first end shell 4 and the second end shell 10 in the following content), a compressor 14, an oxygen production component 18 (such as a molecular sieve, which is a conventional oxygen production component), a cooling fan 2, a water cooling component and a vacuum sound insulation cover 15, the compressor 14 and the oxygen production component 18 are both installed in the shell and connected to each other (the connection structure is a conventional structure and is not repeated here), the compressor 14 is installed on the integrated bottom plate 13, and a cylinder body 24 is provided on the compressor 14, the water cooling component includes a cold water tank 1, a water pump 6, a water cooling bracket 3 (the water cooling bracket 2 in the figure is a frame for facilitating the installation of a heat dissipation water pipe 33, and can also be of other shapes and structures according to actual needs) and a heat dissipation water pipe 33, the water cooling bracket 3 is installed on the outer wall of the shell, the heat dissipation water pipe 33 formed by multiple bends is installed on the water cooling bracket 3, the cooling fan 2 is installed on the water cooling bracket 3 and the wind direction (can be an inlet wind direction or an outlet wind direction, depending on actual needs, as shown in the figure) The cooling water pipe 33 is aligned with the air inlet direction (wind inlet direction), the cold water tank 1 and the water pump 6 are respectively installed on the water cooling bracket 3, the water outlet 34 of the cooling water pipe 33 is connected to the water inlet (not visible in the figure) of the cold water tank 1, the water outlet (not visible in the figure) of the cold water tank 1 is connected to the water inlet 30 of the water pump 6, and the cylinder body 24 is provided with a cylinder body water cooling channel (refer to the water cooling groove 36 and the water cooling cover plate 25 of the following content), and the water inlet end 23 of the cylinder body water cooling channel passes through a water pipe (not marked in the figure) and the bottom of the integrated bottom plate 13. The plate cooling water channel (not shown in the figure, but easy to understand) is connected to the water outlet 5 of the water pump 6, and the water outlet end 26 of the cylinder water cooling channel is connected to the water inlet 35 of the heat dissipation water pipe 33 through a water pipe (not marked in the figure) and the bottom plate hot water channel inside the integrated bottom plate 13 (not shown in the figure, but easy to understand). The vacuum sound insulation cover 15 is sealed and installed on the integrated bottom plate 13, and the compressor 14 is placed in the vacuum sound insulation cover 15. The outer wall of the vacuum sound insulation cover 15 is provided with a vacuum joint 17 for vacuuming.

[0023] like Figure 1-Figure 8 As shown, the present invention also discloses the following more optimized specific structures:

[0024] In order to achieve better water-cooling heat dissipation effect and facilitate processing and assembly, the cylinder body 24 is located on the upper part of the compressor 14, and a water-cooling groove 36 is provided on the upper part of the cylinder body 24. The upper part of the water-cooling groove 36 is sealed and connected (preferably welded) with a water-cooling cover plate 25. The water-cooling groove 36 and the water-cooling cover plate 25 together constitute the cylinder body water-cooling channel.

[0025] In order to further improve the water cooling and heat dissipation effect, the water cooling groove 36 and the water cooling cover plate 25 both include arc segments and are located above the gas compression channel 37 in the cylinder body 24 .

[0026] In order to improve the cooling effect of the cooling fan 2 on the hot water in the cooling water pipe 33, the cooling water pipe 33 is a flat water pipe and is formed into a cooling fin tube (similar to the shape of the cooling fin, but with an inner interlayer space for water to flow through) through a plurality of "Z"-shaped bends.

[0027] To facilitate processing and assembly, the shell includes a middle shell 7, a bottom shell 8, a first end shell 4 and a second end shell 10. The two ends and the bottom of the middle shell 7 are open, the bottom shell 8 is connected to the bottom of the middle shell 7, the integrated bottom plate 13 is installed on the bottom shell 8, the first end shell 4 and the second end shell 10 are respectively connected to the two ends of the middle shell 7, the water cooling bracket 3 is installed on the outer wall of the first end shell 4, the first end shell 4 is provided with a plurality of ventilation holes, and the second end shell 10 is installed with a power interface 11 and a power switch 9.

[0028] Figure 2 Also shown are a switching valve 12 (for gas line switching), a flow valve 16 (for controlling the flow of air or oxygen) and a pressure sensor 19 (for detecting the pressure of high-pressure air or oxygen) installed between the compressor 14 and the oxygen production assembly 18; Figure 3 , Figure 4 and Figure 5 Also shown are a normal pressure air interface 20 (for delivering normal pressure air to the compressor 14), a high pressure air interface 21 (for outputting high pressure air to the oxygen production assembly 18) provided at one end of the integrated bottom plate 13, and an end hot water interface 22 (for delivering hot water in the cylinder body 24 to the heat dissipation water pipe 33) provided at the other end of the integrated bottom plate 13; Figure 4 and Figure 5 Also shown is an end cold water interface 27 (used to deliver the cold water in the cold water tank 1 to the cylinder body 24 through the water pump 6) provided at the other end of the integrated bottom plate 13; Figure 5 Also shown are a middle hot water interface 28 (used to deliver hot water in the cylinder body 24 to the bottom plate hot water channel in the integrated bottom plate 13) and a middle cold water interface 29 (used to deliver cold water in the bottom plate cold water channel in the integrated bottom plate 13 to the cylinder body 24); Figure 6 Also shown is a water tank water inlet 31 provided on the cold water tank 1 and a sealing plug 32 installed on the water tank water inlet 31; these structures are conventional adaptive structures.

[0029] like Figure 1-Figure 8As shown, during assembly, after the vacuum soundproof cover 15 is sealed and connected to the integrated bottom plate 13, the vacuum joint 17 is connected to the vacuum pump, and the enclosed space in the vacuum soundproof cover 15 is vacuumed. After the vacuuming is completed, the shell is assembled; during oxygen production, the power supply of the oxygen generator is turned on, and the compressor 14, the cooling fan 2, and the water pump 6 all start to run. The compressor 14 compresses the normal-pressure air in the air compression channel 37 of the cylinder body 24 to make it high-pressure air. The high-pressure air is sent to the oxygen production component 18 for nitrogen and oxygen separation to realize the oxygen production function. In this process, the cylinder body 24 generates a lot of heat; at the same time, the water The pump 6 pumps the cold water in the cold water tank 1 into the water-cooling groove 36 of the cylinder body 24, takes away the heat of the cylinder body 24, and turns the cold water into hot water, which is then sent into the heat dissipation water pipe 33. The heat dissipation fan 2 blows air to gradually turn the hot water in the heat dissipation water pipe 33 into cold water, which is then sent into the cold water tank 1 to form a water-cooling cycle, and the heat dissipation fan 2 blows the hot air out to the outside air; the noise generated by the operation of the compressor 14 is effectively isolated by the vacuum sound insulation cover 15, achieving efficient and silent operation; in this way, the requirements of a small oxygen concentrator in terms of efficient and silent operation and good heat dissipation performance are taken into account at the same time, and the oxygen concentrator is suitable for home use, especially for portable use.

[0030] Description: The above-mentioned integrated bottom plate 13 is a bottom plate of an oxygen generator that integrates various gas channels (such as normal pressure air channels and oxygen channels) inside the bottom plate. It is a prior art. For details, please refer to the utility model patent with patent number "ZL201620098731.9" and name "Integrated bottom plate of airborne oxygen generator" applied by the applicant; this application only adds a bottom plate cold water channel and a bottom plate hot water channel and corresponding interfaces in this integrated bottom plate 13, which can be easily realized using existing technology.

[0031] The above embodiments are only preferred embodiments of the present invention and are not limitations of the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. An efficient and silent small oxygen concentrator, comprising a housing, a compressor, an oxygen concentrator assembly and a cooling fan, wherein the compressor and the oxygen concentrator assembly are both installed in the housing and connected to each other, the compressor is installed on an integrated bottom plate, and a cylinder block is provided on the compressor, characterized in that: The high-efficiency silent small oxygen concentrator also includes a water cooling component and a vacuum soundproof cover. The water cooling component includes a cold water tank, a water pump, a water cooling bracket and a heat dissipation water pipe. The water cooling bracket is installed on the outer wall of the shell. The heat dissipation water pipe formed by multiple bends is installed on the water cooling bracket. The heat dissipation fan is installed on the water cooling bracket and the wind direction is aligned with the heat dissipation water pipe. The cold water tank and the water pump are respectively installed on the water cooling bracket. The water outlet of the heat dissipation water pipe is connected to the water inlet of the cold water tank. The water outlet of the cold water tank is connected to the water inlet of the cold water tank. The water inlet of the water pump is connected, the cylinder body is provided with a cylinder water cooling channel, the water inlet end of the cylinder water cooling channel is communicated with the water outlet of the water pump through a water pipe and the bottom plate cold water channel inside the integrated bottom plate, the water outlet end of the cylinder water cooling channel is communicated with the water inlet of the heat dissipation water pipe through a water pipe and the bottom plate hot water channel inside the integrated bottom plate, the vacuum sound insulation cover is sealingly installed on the integrated bottom plate, the compressor is placed in the vacuum sound insulation cover, and a vacuum extraction joint for vacuum extraction is provided on the outer wall of the vacuum sound insulation cover.

2. The high-efficiency silent small oxygen concentrator according to claim 1 is characterized in that: The cylinder body is located at the upper part of the compressor, a water cooling groove is provided on the upper part of the cylinder body, a water cooling cover plate is sealed and connected to the upper part of the water cooling groove, and the water cooling groove and the water cooling cover plate together constitute the cylinder body water cooling channel.

3. The high-efficiency silent small oxygen concentrator according to claim 2 is characterized in that: The water-cooling groove and the water-cooling cover plate both include arc-shaped segments and are located above the gas compression channel in the cylinder body.

4. The high-efficiency silent small oxygen concentrator according to any one of claims 1 to 3, characterized in that: The heat dissipation water pipe is a flat water pipe and is formed into a heat dissipation fin tube through a plurality of "Z"-shaped bends.

5. The high-efficiency silent small oxygen concentrator according to any one of claims 1 to 3, characterized in that: The shell includes a middle shell, a bottom shell, a first end shell and a second end shell. The two ends and the bottom of the middle shell are open. The bottom shell is connected to the bottom of the middle shell. The integrated bottom plate is installed on the bottom shell. The first end shell and the second end shell are respectively connected to the two ends of the middle shell. The water cooling bracket is installed on the outer wall of the first end shell. The first end shell is provided with a plurality of ventilation holes. The second end shell is installed with a power interface and a power switch.

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