Shell and nitrogen-oxygen separation device using same

Abstract

The invention discloses a shell and a nitrogen-oxygen separation device using the shell, the shell comprises a first sub-shell and a second sub-shell, a containing cavity for containing all oxygen production assemblies is formed in the shell, an annular check ring is arranged on the outer surface of the second sub-shell in a protruding mode, an installation area is defined by the annular check ring, an air inlet filtering opening is formed in the installation area, and the air inlet filtering opening is communicated with the first sub-shell. An air inlet filtering cover is arranged outside the air inlet filtering opening, and a power switch is further arranged in the installation area. The air inlet filtering part and the power switch which need to be frequently operated by a user on the shell are arranged on the same shell in a concentrated mode, machining and manufacturing are convenient, on the other hand, distribution of all operation parts on the shell is more concentrated, and user operation is convenient. And the annular check ring can protect the air inlet filter cover and the power switch in the mounting area, and the situation that the power switch is turned on and off by mistake due to scraping and collision by foreign objects in the using and storing process is avoided.

Description

[0001] This application is a divisional application with application number CN201811621833.4. The application date of the original application is December 28, 2018. The name of the invention is a shell and a nitrogen oxygen separation device using the same. Technical Field

[0002] The present application belongs to the technical field of nitrogen-oxygen separation devices, and in particular relates to a shell of a nitrogen-oxygen separation device and a nitrogen-oxygen separation device using the shell. Background Art

[0003] The oxygen-nitrogen separation device is a device that separates nitrogen and oxygen in the air. It is divided into nitrogen generators and oxygen generators. The oxygen generator is a device that provides high-concentration oxygen for human breathing. With the improvement of people's living standards and the progress of society, people have more knowledge about oxygen generators, and the demand for their use is also increasing. They have been widely used in hospitals and families, as well as in industries such as aquaculture. Oxygen generators are used for oxygen therapy for people with respiratory diseases, cardiovascular diseases, cerebrovascular diseases, altitude sickness and altitude diseases, for the weak middle-aged and elderly, students and pregnant women who overuse their brains, and for people who work and live in an oxygen-deficient environment. Because breathing more pure oxygen can promote blood circulation, refresh the mind, eliminate fatigue, and effectively improve work efficiency, so in daily life or in the workplace, it is also a good lifestyle to have an oxygen generator ready for use at any time.

[0004] At present, the oxygen generator system structure on the market is relatively complex, with many assembled parts, complex production and assembly, low efficiency, and high cost, which is very inconvenient for production and later inspection and maintenance of internal oxygen generator components. Chinese patent ZL201620694283.9 discloses an oxygen generator housing, which focuses on the method of the sleeve mechanism between the first sub-shell and the second sub-shell, and the first sub-shell and the second sub-shell are connected to each other to form an oxygen generator accommodating chamber with an open end, and also includes a third sub-shell for covering the opening. The three sub-shells form an integral oxygen generator housing. According to its description and the characteristics of the oxygen generator on the market, other structural parts are required inside the housing of this solution to fix other components of the oxygen generator. In summary, the structure of this patent is relatively complex.

[0005] Therefore, it is very necessary to improve the structural composition of the oxygen concentrator so that the overall assembly space of the oxygen concentrator can move towards refinement and simplification. Summary of the invention

[0006] In order to overcome the shortcomings and deficiencies in the prior art, an object of the present invention is to provide a housing which has the characteristics of easy assembly, simple structure, exquisite overall space arrangement and good aesthetics.

[0007] Another object of the present invention is to provide a nitrogen oxygen separation device, which uses the above-mentioned shell.

[0008] The technical solution adopted by the present invention to solve its technical problem is:

[0009] A shell, the shell includes a first sub-shell and a second sub-shell, a housing chamber for placing an oxygen production component is formed inside the shell, an annular retaining ring is convexly provided on the outer surface of the second sub-shell, the annular retaining ring surrounds an installation area, an air inlet filter port is provided in the installation area, the inner side of the air inlet filter port extends toward the housing chamber, and an air inlet filter pipe is provided, the air inlet filter pipe is connected to the air inlet joint of the compressor inside the housing chamber through a pipeline, and is used to deliver an air source to the compressor, the inner side of the air inlet filter port is communicated with the second sub-shell, an air inlet filter cover is provided outside the air inlet filter port, the air inlet filter cover is used to block the air inlet filter port from the outside, and a power switch is also provided in the installation area, the power switch is used to control the start and stop of the oxygen production component.

[0010] The installation area extends vertically in a long strip shape, the power switch and the air intake filter port are arranged vertically, and the power switch is located below the air intake filter cover.

[0011] A retaining rib is arranged between the air intake filter cover and the power switch to prevent the liquid at the air intake filter port from flowing to the power switch.

[0012] The retaining rib extends in a horizontal direction, and two ends of the retaining rib bend and extend downward, and the length of the retaining rib is greater than the width of the power switch.

[0013] A fuse is also provided in the installation area and is located below the air intake filter.

[0014] The second sub-shell has a side wall and a top wall. The installation area is centrally arranged on the side wall and extends up and down so that the installation area is left-right symmetrical about the vertical center line of the side wall.

[0015] The protruding height of the annular retaining ring gradually increases from bottom to top along the installation area.

[0016] The mounting area is provided with a groove on the lower side of the air intake filter cover so that a user can insert a finger into the groove to grasp the air intake filter cover.

[0017] The groove is an arc-shaped structure, and the center of the arc-shaped structure is located above the groove. The projection of the air intake filter cover toward the second sub-shell covers at least a portion of the groove.

[0018] The power switch is located below the air intake filter cover, and a retaining rib is arranged between the air intake filter cover and the power switch, wherein the upper edge of the retaining rib intersects with the lower edge of the groove.

[0019] A humidification bottle fixing groove is arranged on the outer side of the second sub-shell, and the humidification bottle fixing groove is used for placing the humidification bottle.

[0020] The second sub-shell has side walls and a top wall. The side walls are provided with a receiving groove, which extends upward to the top wall to form a humidification bottle fixing groove. The top wall is provided with an avoidance notch corresponding to the receiving groove. The avoidance notch forms the notch of the humidification bottle fixing groove. The humidification bottle fixing groove is located in the upper right corner of the installation area.

[0021] The width of the humidification bottle fixing groove gradually decreases from bottom to top.

[0022] The inner wall of the humidification bottle fixing groove is provided with at least one reinforcing rib, and the reinforcing rib extends vertically.

[0023] A handle is provided on the shell.

[0024] The first sub-shell has a first side wall and a first top wall, the second sub-shell has a second side wall and a second top wall, the first top wall is provided with a first handle, the second top wall is provided with a second handle, and the first handle and the second handle cooperate to form a handle.

[0025] The air intake filter cover includes a blocking portion and a holding portion, wherein the blocking portion is used to block the air intake filter port, and the holding portion is used to hold. The projection of the holding portion toward the second sub-shell is larger than the projection of the blocking portion toward the second sub-shell and blocks the air intake filter port.

[0026] The shell is provided with an air inlet, an air outlet and an oxygen outlet connector; the inner walls of the two sub-shells are matched with a plurality of pairs of protruding fixing grooves or fixing ribs. Due to the assembly of the two sub-shells, each pair of the fixing grooves or the fixing ribs forms a limiting structure for limiting and fixing the oxygen production component.

[0027] The shell is provided with an air inlet, an air outlet and an oxygen outlet connector; the inner walls of the two sub-shells are matched with multiple pairs of protruding fixing grooves or fixing ribs. Due to the assembly of the two sub-shells, each pair of fixing grooves or fixing ribs forms a limiting structure for limiting and fixing the oxygen production component.

[0028] The inner walls of the two sub-shells are matched and provided with a plurality of pairs of partitions, which divide the accommodating cavity into a plurality of interconnected chambers. The plurality of interconnected chambers and the oxygen production component are combined to form an airflow channel.

[0029] There are three pairs of partitions, namely, three partition pairs: a first partition pair, a second partition pair and a third partition pair, wherein the third partition pair is vertically arranged in the accommodating cavity to form an airflow baffle, one side of which is an ascending chamber for the airflow entering from the air inlet, and only the bottom and the top end of the ascending chamber can flow the air; the other side is provided with a semi-enclosed chamber formed by connecting the first partition pair, the second partition pair and the bottom wall and the side wall of the shell in sequence, the first partition pair is provided with a notch to facilitate the upward and downward passage of the airflow, the second partition pair is provided as a fully enclosed plate structure, which is connected to the bottom wall of the shell, and the semi-enclosed chamber is connected to the air outlet below.

[0030] The partition pair also includes a fourth partition pair. The first partition pair, the second partition pair, the fourth partition pair and the side wall of the shell are connected in sequence to form a semi-closed chamber. The first partition pair and the fourth partition pair are both provided with notches to facilitate the upward and downward passage of airflow; the notch of the fourth partition pair is connected to the air outlet.

[0031] The air inlet and the air outlet are both arranged on the first shell or the second shell; or the air inlet and the air outlet are respectively arranged on one of the two sub-shells; or the air inlet includes a first air inlet and a corresponding second air inlet, and the first air inlet and the second air inlet are respectively located on the first shell and the second shell, and the air outlet includes a first air outlet and a corresponding second air outlet, and the first air outlet and the second air outlet are respectively located on the first shell and the second shell.

[0032] The first sub-shell and / or the second sub-shell is also provided with a fixing structure other than the paired fixing ribs or fixing grooves;

[0033] The fixing ribs or fixing grooves include adsorption tower fixing ribs, fan fixing grooves, and compressor bracket fixing grooves, which are used to limit and fix the adsorption tower, fan, and compressor.

[0034] The sleeve connection structure, the buckle structure, the screw or the adhesive bonding method are arranged on the edge side walls of the two sub-shells and between the partition plate pairs.

[0035] Socket structure: a socket piece is provided on the first sub-shell, and a sleeve is provided on the second sub-shell. The sleeve can be inserted into and matched with the socket piece; or a socket piece is provided on the second sub-shell, and a sleeve is provided on the first sub-shell.

[0036] A nitrogen and oxygen separation device comprises a shell as described in any one of the above.

[0037] The beneficial effects of the present invention are as follows:

[0038] (1) The housing of the nitrogen oxygen separation device of the present invention only includes two sub-housings, which are easy to assemble, have a simple structure, and have a delicate overall spatial arrangement and good aesthetics.

[0039] (2) The housing chamber inside the shell of the present invention is used to place all oxygen-generating components. The shell cleverly utilizes its own structure to install and fix the oxygen-generating components without requiring additional parts. Therefore, no other parts are required to install the oxygen-generating components in the housing chamber inside the shell, thereby reducing structural parts, simplifying the design, and facilitating operation.

[0040] (3) The nitrogen oxygen separation device of the present invention has only two sub-shells, has a novel structure, is low in cost, is easy to produce in large quantities, and has obvious economic benefits.

[0041] (4) In addition, the special airflow channel formed by the partitions inside the two sub-shells can effectively isolate and reduce the noise inside the shell.

[0042] (5) An annular retaining ring is provided on the second sub-shell, and the annular retaining ring encloses the installation area. The air intake filter port and the power switch are both provided in the installation area. Since the first sub-shell and the second sub-shell are separate parts, on the one hand, the air intake filter components and the power switch that the user needs to operate frequently on the shell are centrally arranged on the same shell, which is convenient for processing and manufacturing. On the other hand, the distribution of various operating components on the shell is more concentrated. The user only needs to operate the air intake filter cover and the power switch on the second sub-shell, without frequently adjusting their own position or rotating the direction of the oxygen concentrator. When the user faces the first sub-shell, the air intake filter cover and the power switch cannot be seen, thereby realizing the overall visual simplicity of the oxygen concentrator design.

[0043] (6) The annular retaining ring is convexly arranged on the second sub-shell, so that the installation area is a concave structure relative to the annular retaining ring. After the air intake filter cover and the power switch are installed, they will not protrude too much from the annular retaining ring, so that the annular retaining ring can protect the air intake filter cover and the power switch in the installation area, avoiding scratches by foreign objects during use and storage, resulting in the power switch being turned on and off by mistake, or the air intake filter cover being displaced or falling off due to collision, reducing or even losing the blockage and shielding of the air intake filter port. At the same time, the annular retaining ring can also block the condensed water and other liquids on the outside, preventing the liquid from flowing into the installation area, reducing the risk of entering the air intake filter port or the power switch, and ensuring safe and reliable use. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is the appearance diagram of the oxygen and nitrogen separation device;

[0045] Figure 2 is an appearance diagram of the first sub-shell;

[0046] Figure 3 is an internal diagram of the first sub-shell;

[0047] Figure 4 is the appearance diagram of the second sub-shell;

[0048] Figure 5 is an internal diagram of the second sub-shell;

[0049] Figure 6 is a cross-sectional view of the shell;

[0050] Figure 7 It is the assembly drawing inside the shell;

[0051] Among them, 11-first sub-shell; 12-second sub-shell; 20-compressor; 30-adsorption tower;

[0052] 1100-first caster; 1101-atomization connector; 1102-oxygen outlet connector; 1103-control button; 1104-display cover;

[0053] 1105-flow meter display window; 1106-flow regulating hole; 1107-first air outlet; 1108-first air inlet; 1109-partition 1; 1110-first compressor bracket fixing groove; 1111-partition 2; 1112-partition 3; 1113-first fan fixing groove; 1114-muffler; 1115-first handle; 1116-first adsorption tower fixing rib; 1117-capacitor fixing rib; 1118-partition 4;

[0054] 1200-second caster; 1201-second handle; 1202-air inlet filter cover; 1203-humidifier bottle fixing groove; 1204-second air inlet; 1205-air inlet filter; 1208-second air outlet; 1209-second adsorption tower fixing rib; 1210-partition 5; 1211 partition 6; 1212-second compressor bracket fixing groove; 1213-partition 7; 1214-partition 8; 1215-second fan fixing groove; 1216-air inlet filter tube; 1217-annular retaining ring; 1218-installation area; 1219-retaining rib; 1220-side wall; 1221-top wall; 1222-groove; 1223-avoidance gap; 1224-reinforcement rib;

[0055] 200-compressor foot; 201-foot pad; 202-spring; 203-bracket; 206-fan; 207-pipeline 1; 208-pipeline 2; 209-pipeline 3; 210-compressor air inlet connector;

[0056] 301-switching valve; 302-inlet connector; 303-inlet pressure cover; 304-silencing chamber; 305-molecular sieve cartridge; 306-gas storage tank; 308-pressure regulating valve; 309-outlet pressure cover;

[0057] 400-control board; 401-detection board; 402-display board; 403-keyboard; 404-fuse; 405-power switch; 406-power cord. DETAILED DESCRIPTION

[0058] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0059] Reference Figures 1 to 7As shown, the oxygen generator housing of this embodiment only includes a first sub-housing 11 and a second sub-housing 12. The first sub-housing 11 and the second sub-housing 12 are respectively located on the front and rear sides of the housing. The shapes of the two are basically symmetrical. The two sub-housings are assembled to form a complete housing. After the first sub-housing 11 and the second sub-housing 12 are assembled, an oxygen production component accommodating chamber is formed inside. All oxygen production components are placed in the accommodating chamber inside the housing.

[0060] The first sub-shell 11 is provided with a first caster 1100 , an atomizing joint 1101 , an oxygen outlet joint 1102 , a control button 1103 , a display cover 1104 , a flow meter display window 1105 , a flow adjustment 1106 , a first handle 1115 , a first air outlet 1107 , and a first air inlet 1108 on the outside of the first sub-shell 11 .

[0061] The inner side of the first sub-shell 11 is provided with a partition 1 1109 , a first compressor support fixing groove 1110 , a partition 2 1111 , a partition 3 1112 , a first fan fixing groove 1113 , a muffler 1114 , a first adsorption tower fixing rib 1116 , a capacitor fixing rib 1117 , and a partition 4 1118 .

[0062] The oxygen outlet connector 1102 provided on the first sub-shell 11 is the oxygen outlet connector of the oxygen-nitrogen separation device; a keypad 403 is provided under the control key 1103 to control the working state of the oxygen-nitrogen separation device; a display panel 402 is provided under the display cover 1104 to display the working state of the oxygen-nitrogen separation device; a flow display window 1105 is used to display the flow of oxygen; and a capacitor fixing rib 1117 is used to place the capacitor of the compressor 20. The atomization connector 1101 is connected to the air outlet connector pipeline of the compressor 20, and can provide compressed air for the externally connected atomization component to atomize or humidify.

[0063] The second sub-shell 12 is provided with a second caster 1200, a second handle 1201, an air inlet filter cover 1202, a humidification bottle fixing groove 1203, a second air inlet 1204, an air inlet filter 1205, and a second air outlet 1208 on the outside;

[0064] The second sub-shell 12 is provided with a second adsorption tower fixing rib 1209, a partition 5 1210, a partition 6 1211, a second compressor support fixing groove 1212, a partition 7 1213, a partition 8 1214, a second fan fixing groove 1215 and an air intake filter pipe 1216 on the inner side thereof.

[0065] An air inlet filter cover 1202 is provided outside the air inlet filter port 1205, and an air inlet filter pipe 1216 is provided behind the air inlet filter port 1205. The air inlet filter pipe 1216 is connected to the air inlet joint of the compressor 20 through a pipeline. The humidification bottle fixing groove 1203 is used to place the humidification bottle.

[0066] Specifically, Figure 1 , Figure 4 As shown, the first sub-shell 11 has a first side wall and a first top wall, the second sub-shell 12 has a second side wall and a second top wall, the first top wall is provided with a first handle 1115, the second top wall is provided with a second handle 1201, and the first handle 1115 and the second handle 1201 cooperate to form a handle.

[0067] After the first sub-shell 11 and the second sub-shell 12 are fixed, the first handle 1115 and the second handle 1201 are assembled to form a complete handle, which not only improves the overall strength of the handle, but also when the user lifts the device by the handle, the force is transmitted to the first top wall of the first sub-shell 11 and the second top wall of the second sub-shell 12 through the first handle 1115 and the second handle 1201 respectively, so that the first sub-shell 11 and the second sub-shell 12 jointly bear the force, thereby ensuring the stability of the overall structure and avoiding the breakage or deformation of a single first handle 1115 or the second handle 1201.

[0068] The first air inlet 1108 and the second air inlet 1204 form a complete air inlet, which is located at the left bottom of the shell, and the oxygen-nitrogen separation device takes in air from the air inlet. Similarly, the first air outlet 1107 and the second air outlet 1208 form a complete air outlet, which is located at the right bottom of the shell, and the oxygen-nitrogen separation device discharges gas from the air outlet.

[0069] The first sub-shell 11 and the second sub-shell 12 are provided with adsorption tower fixing ribs, fan fixing grooves, and compressor bracket fixing grooves correspondingly and matchingly. Due to the assembly of the first sub-shell 11 and the second sub-shell 12, the adsorption tower fixing ribs, fan fixing grooves, and compressor bracket fixing grooves fixed therein respectively form limiting structures for limiting and fixing the adsorption tower 30, the fan 206, and the compressor bracket 203. This can save installation parts, is very convenient, and has a good limiting effect.

[0070] The partitions disposed inside the first sub-shell 11 and the second sub-shell 12 divide the above-mentioned accommodating cavity into a plurality of interconnected chambers. Figure 3), describing the distribution of the partitions arranged inside: partition 41118 is arranged vertically in the accommodating cavity, and the right side thereof is the ascending channel (ascending chamber) of the airflow entering from the first air inlet 1108, and partition 4 1118 forms an airflow wind path baffle, and the ascending chamber can only flow air at the bottom and top ends; the adsorption tower 30 is placed on the left side of partition 41118, and the adsorption tower 30 is arranged on the left side of the adsorption tower 30. The semi-enclosed chamber (a semi-enclosed chamber with openings at the top and bottom) formed by partition 1 1109, partition 2 1111, partition 3 1112 and the left inner wall of the first sub-shell 11 is arranged, and partition 11109, partition 2 1111, and partition 3 1112 are connected in sequence, and partition 1 1109 and partition 3 1112 are provided with notches to facilitate the upward and downward passage of airflow. Partition 2 1111 is set as a fully enclosed plate-like structure, which is connected to the bottom wall of the first sub-shell 11. The notch of the partition 11109 is connected to the first air outlet 1107, which facilitates the discharge of air.

[0071] In this way, the first sub-shell 11 and the second sub-shell 12 can be assembled to form a plurality of interconnected chambers, and the plurality of chambers and the compressor 20 and the adsorption tower 30 disposed in the chambers are combined to form an air flow passage.

[0072] The fan 206 rotates to make the air flow from top to bottom. After the first sub-housing 11 and the second sub-housing 12 are assembled, the partition 41118 and the partition 5 1210 form an air flow path baffle, which separates the adsorption tower 30 and the air inlet to form a separation space; the air flows as follows Figure 3 , Figure 5 , Figure 6 , Figure 7 As shown, the air enters the housing from the first air inlet 1108 and the second air inlet 1204, and the air flow path is designed as shown in FIG. Figure 3 Figure 5 , Figure 6 , Figure 7 The adsorption tower moves in the direction shown in FIG. 1 (through the top of the adsorption tower fixing rib 1209 - through the fan 206 - into the semi-enclosed chamber with openings at the top and bottom - through the space between the compressor 20 and the semi-enclosed chamber - through the gaps of the partition 1 1109 and the partition 6 1211 to reach the space between them and the bottom wall), and then moves from the top of FIG. Figure 3 , Figure 5 , Figure 6 , Figure 7 The air is discharged through the first outlet 1107 and the second outlet 1208. Such an air duct design can effectively dissipate heat inside the housing, while extending the length of the air flow passageway for air to enter the housing, effectively isolating, reducing and absorbing noise from noise sources such as the air flow inside the housing, the compressor 20, the switching valve 301 and the muffler 1114.

[0073] The two sub-shells can be fixedly connected by means including but not limited to a sleeve structure, a buckle structure, screws or adhesive bonding. For example, a sleeve is provided on the first sub-shell 11, and a sleeve is provided on the second sub-shell 12. The sleeve can be inserted into the sleeve and matched with the sleeve, so as to be assembled into a sleeve structure; of course, the sleeve structure can also be a sleeve provided on the second sub-shell 12 and a sleeve provided on the first sub-shell 11. Other fixing methods such as a buckle structure can also be provided in the same way.

[0074] Preferably, the connection structure between the two sub-housings is not only arranged on the side walls of the sub-housings, but also on the above-mentioned partition plate.

[0075] like Figure 4 As shown, an annular retaining ring 1217 is provided on the outer surface of the second sub-shell 12, and the annular retaining ring 1217 surrounds an installation area 1218. An air inlet filter port 1205 is provided in the installation area 1218. The inner side of the air inlet filter port 1205 extends toward the accommodating chamber, and an air inlet filter pipe 1216 is provided. The air inlet filter pipe 1216 is connected to the air inlet joint of the compressor 20 inside the accommodating chamber through a pipeline, and is used to deliver an intake air source to the compressor 20. The inner side of the air inlet filter port 1205 is communicated with the inside of the second sub-shell 12, and an air inlet filter cover 1202 is provided outside the air inlet filter port 1205. The air inlet filter cover 1202 is used to block the air inlet filter port 1205 from the outside. A power switch 405 is also provided in the installation area 1218, and the power switch 405 is used to control the start and stop of the oxygen production component.

[0076] In the prior art, the distribution positions of the air inlet filter and the power switch on the surface of the oxygen concentrator housing are often messy, and most of them are located on different sides of the housing, which not only makes the overall appearance of the oxygen concentrator more complicated, but also requires complex structural design and manufacturing for each side of the housing. At the same time, when the user replaces and cleans the filter element of the air inlet filter and controls the power switch, it is often necessary to do so on different sides of the housing. Therefore, during operation, the user needs to adjust his position relative to the oxygen concentrator to operate the air inlet filter and the power switch, and for users who have already worn oxygen masks and other equipment, they are often limited by the length and position of the mask pipeline and cannot flexibly adjust the position. Alternatively, the user can also rotate the oxygen concentrator so that the side where the operating components are located faces the user, but some oxygen concentrators are heavy and are not equipped with walking devices such as moving wheels, which makes it difficult for users to adjust the position and direction of the oxygen concentrator.

[0077] In the present application, an annular retaining ring 1217 is provided on the second sub-shell 12, and the annular retaining ring 1217 encloses an installation area 1218, and the air intake filter port 1205 and the power switch 405 are both provided in the installation area 1218. Since the first sub-shell 11 and the second sub-shell 12 are separate parts, on the one hand, the air intake filter components and the power switch 405 that need to be frequently operated by the user on the shell are centrally arranged on the same shell, which is convenient for processing and manufacturing, and on the other hand, the distribution of various operating components on the shell is more concentrated, and the user only needs to operate the air intake filter cover 1202 and the power switch 405 on the second sub-shell 12, without frequently adjusting their own position or rotating the direction of the oxygen concentrator. When the user faces the first sub-shell 11, the air intake filter cover 1202 and the power switch 405 cannot be seen, thereby realizing the overall visual simplicity of the oxygen concentrator design.

[0078] In addition, the annular retaining ring 1217 is convexly arranged on the second sub-housing 12, so that the installation area 1218 is a concave structure relative to the annular retaining ring 1217, and then after the air intake filter cover 1202 and the power switch 405 are installed, they will not protrude too much from the annular retaining ring 1217, so that the annular retaining ring 1217 can protect the air intake filter cover 1202 and the power switch 405 in the installation area 1218, and avoid being scratched by foreign objects during use and storage, resulting in the power switch 405 being accidentally turned on and off, or the air intake filter cover 1202 being offset or falling off due to collision, reducing or even losing the blocking and shielding of the air intake filter port 1205. At the same time, the annular retaining ring 1217 can also block the liquid such as condensed water on the outside, prevent the liquid from flowing into the installation area 1218, reduce the risk of entering the air intake filter port 1205 or the power switch 405, and ensure safe and reliable use.

[0079] Specifically, Figure 4 As shown, the second sub-housing 12 includes a side wall 1220 and a top wall 1221, and the installation area 1218 is arranged in the center of the side wall 1220, so that the installation area 1218 is symmetrically arranged about the vertical center line of the side wall 1220, so that the appearance of the housing is more beautiful. The installation area 1218 extends vertically in a long strip shape, and the overall shape is a rectangle, and the four corners are transitioned by arcs. Among them, the user can remove the air intake filter cover 1202 to replace the filter element in the air intake filter port 1205.

[0080] The power switch 405 is used for the user to start or shut down the device. The air intake filter cover 1202 is a structural component that needs to be operated by the user when replacing the filter element. The installation area 1218 is surrounded by the annular retaining ring 1217, so that the power switch 405 and the air intake filter cover 1202 are concentrated in the same area, thereby forming an obvious visual prompt for the user, which not only improves the appearance of the whole machine, but also facilitates the user's operation.

[0081] The power switch 405 can be controlled by pressing the power switch 405 to press or lift it as a whole to switch between starting and stopping, or by pressing both ends of the power switch 405 to make it swing to switch between starting and stopping.

[0082] Furthermore, if Figure 4 As shown, along the installation area 1218 from bottom to top, the protruding height of the annular retaining ring 1217 gradually increases.

[0083] The annular retaining ring 1217 at the top of the installation area 1218 has a relatively large protruding height, so that it can form a certain blocking effect on the installation area 1218 below. The upper annular retaining ring 1217 can block impurities such as dust, so that the impurities are isolated outside the annular retaining ring 1217, and pass through the installation area 1218 from the outside of the annular retaining rings 1217 on both sides of the installation area 1218 to the bottom. The annular retaining ring 1217 below the installation area 1218 has a relatively small protruding height, so that the liquid inside the installation area 1218 can flow out of the installation area 1218 from the lower annular retaining ring 1217 in time, ensuring the cleanliness of the installation area 1218, reducing the risk of the power switch 405 encountering water, and reducing the cleaning pressure of the user.

[0084] In addition, since the air intake filter cover 1202 is located at the top of the installation area 1218, the annular retaining ring 1217 above has a relatively high protrusion height, which can also play a better positioning role in the installation of the air intake filter cover 1202, thereby reducing the installation difficulty for users and improving installation efficiency.

[0085] Preferably, if Figure 4 As shown, the power switch 405 is located below the air intake filter cover 1205.

[0086] Since the installation area 1218 extends vertically, the air intake filter cover 1202 and the power switch 405 are arranged up and down, which can reasonably utilize the space in the installation area 1218 and avoid crowded structural layout.

[0087] Preferably, if Figure 4 As shown, a retaining rib 1219 is provided between the air intake filter cover 1202 and the power switch 405 .

[0088] During the process of installing and removing the air intake filter cover 1202, liquid may flow out of the air intake filter port 1205. The leaked liquid will flow downward under the action of its own gravity. Due to the existence of the retaining rib 1219, the liquid can be blocked and cannot flow to the power switch 405, thereby reducing the risk of short circuit or damage of the power switch 405 due to water, thereby improving safety and reliability.

[0089] Furthermore, if Figure 4 As shown, the retaining rib 1219 extends in a horizontal direction, and both ends of the retaining rib 1219 bend and extend downward.

[0090] The liquid above the barrier rib 1219 is blocked by the barrier rib 1219 and temporarily accumulates on the upper side of the barrier rib 1219. The two ends of the barrier rib 1219 are bent downward, so that the liquid above the barrier rib 1219 can flow to the two ends of the barrier rib 1219 and drip from the two ends of the barrier rib 1219. Figure 4 As shown, the width of the power switch 405 is smaller than the length of the retaining rib 1219. This ensures that when the liquid drips from both ends of the retaining rib 1219, it will not reach the power switch 405 below.

[0091] Preferably, if Figure 4 As shown, a fuse 404 is also provided in the installation area 1218, and the fuse 404 is located below the air inlet filter 1205. The fuse 404 is located below the retaining rib 1219, so that the retaining rib 1219 can block the liquid flowing down from above and prevent the liquid from flowing to the fuse 404.

[0092] Preferably, if Figure 4 As shown, the air intake filter cover 1202 is a rectangular structure, and transition arc surfaces are provided at the four corners of the air intake filter cover 1202 .

[0093] The rectangular air intake filter cover 1202 can improve the user's grip, and when rotating the air intake filter cover 1202, it is more convenient to apply rotational force, thereby improving the user experience. On the other hand, the rectangular air intake filter cover 1202 can enable the user to intuitively see its installation angle, thereby prompting the user to install the air intake filter cover 1202 at the correct angle.

[0094] Of course, in other embodiments, the air intake filter cover 1202 may also be circular or in other shapes.

[0095] Preferably, the air intake filter cover 1202 includes a blocking portion and a holding portion, the blocking portion is used to block the air intake filter port 1205 , the holding portion is used to hold, the projection of the holding portion toward the second sub-shell 12 is larger than the projection of the blocking portion toward the second sub-shell 12 and blocks the air intake filter port 1205 .

[0096] The sealing portion is used to seal the air inlet filter port 1205. It is relatively small in size and can be sealed by extending into the air inlet filter port 1205 or covering the air inlet filter port 1205 from the outside. The holding portion is relatively large in size, which not only facilitates the user's holding, but also makes it more convenient for the user to apply force to complete the installation and disassembly of the air inlet filter cover 1202, and can also cover the air inlet filter port 1205, thereby realizing a hidden design of the air inlet filter port 1205 and improving the overall appearance.

[0097] Preferably, an annular positioning rib is provided on the periphery of the air inlet filter port 1205, and the air inlet filter cover 1202 has a protruding positioning rib, which can cooperate with the annular positioning rib for positioning, so as to further reduce the difficulty of the user to install the air inlet filter cover 1202 and ensure that the air inlet filter cover 1202 is installed in place.

[0098] Preferably, if Figure 4 As shown, the mounting area 1218 is provided with a groove 1222 on the lower side of the air intake filter cover 1202 so that a user can insert a finger into the groove 1222 to grasp the air intake filter cover 1202 .

[0099] The groove 1222 provides accommodation space for the user's fingers. When removing the air intake filter cover 1202, the user can insert the fingers into the groove 1222 below to grasp the air intake filter cover 1202, so that the air intake filter cover 1202 can be removed more conveniently, thereby improving the convenience of removing the air intake filter cover 1202 and the operating comfort.

[0100] Specifically, Figure 4 As shown, the groove 1222 is an arc-shaped structure and the center of the arc-shaped structure is located above the groove 1222, and the projection of the air intake filter cover 1202 toward the second sub-shell 12 covers at least part of the groove 1222. The groove 1222 is an arc-shaped structure that bends and extends upward, which is more in line with the force direction of the user inserting his finger into the groove 1222 and grabbing the air intake filter cover 1202 upward, which is ergonomic and allows the user to grab the air intake filter cover 1202 more comfortably and conveniently.

[0101] The air intake filter cover 1202 covers at least a portion of the groove 1222 , so that the user can easily grasp the air intake filter cover 1202 from the inside of the groove 1222 with his fingers.

[0102] Preferably, if Figure 4 As shown, the power switch 405 is located below the air intake filter cover 1202 , and a retaining rib 1219 is provided between the air intake filter cover 1202 and the power switch 405 , and the upper edge of the retaining rib 1219 intersects with the lower edge of the groove 1222 .

[0103] Due to the concave structure of the groove 1222, when liquid leaks from the air inlet filter 1205, the liquid will first flow into the groove 1222, and the lower edge of the groove 1222 will contact the upper edge of the retaining rib 1219, so that the groove 1222 can guide the liquid to flow to the retaining rib 1219, and then further guide the liquid to flow to both sides through the retaining rib 1219. The guiding effect of the leaked liquid at the air inlet filter 1205 is improved, so that the liquid is first guided by the groove 1222, and then guided by the retaining rib 1219 to flow to the bottom, thereby preventing the power switch 405 below from being damaged by water.

[0104] Preferably, if Figure 4 As shown, the length of the blocking rib 1219 is greater than the width of the groove 1222 , so that the liquid flowing downward in the groove 1222 can be blocked by the blocking rib 1219 .

[0105] Preferably, if Figure 4 As shown, a humidifier bottle fixing groove 1203 is provided on the outer side of the second sub-shell 12, and the humidifier bottle fixing groove 1203 is used for placing the humidifier bottle.

[0106] The humidification bottle fixing groove 1203 is located on the outer side of the second sub-shell 12, which not only provides stable support for the humidification bottle so that the humidification bottle is firmly placed in the humidification bottle fixing groove 1203, but also exposes the humidification bottle so that the user can intuitively see the amount of liquid in the humidification bottle, making it convenient for the user to replenish the humidification liquid into the humidification bottle in time.

[0107] Furthermore, if Figure 4 As shown, when looking directly at the second sub-housing 12 , the humidification bottle fixing groove 1203 is located at the upper right of the installation area 1218 .

[0108] Specifically, Figure 4 As shown, the inner wall of the humidification bottle fixing groove 1203 is further provided with at least one reinforcing rib 1224, and the reinforcing rib 1224 extends vertically to improve the structural strength of the humidification bottle fixing groove 1203 and stably and reliably support the humidification bottle.

[0109] The reinforcing rib 1224 may extend from the side wall of the humidification bottle fixing groove 1203 to the bottom wall, or may be located only on the side wall of the humidification bottle fixing groove 1203 , which is not limited here.

[0110] Preferably, if Figure 4 As shown, the second sub-shell 12 has a side wall 1220 and a top wall 1221. The side wall 1220 is provided with a receiving groove, which extends upward to the top wall 1221 to form a humidification bottle fixing groove. The top wall 1221 is provided with an avoidance notch 1223 corresponding to the receiving groove, and the avoidance notch 1223 constitutes the notch of the humidification bottle fixing groove 1203.

[0111] By providing a receiving groove extending to the top wall 1221 on the side wall 1220 to form the humidifier bottle fixing groove 1203, the humidifier bottle is placed to form an embedded effect, which ensures the stable support of the humidifier bottle and prevents the humidifier bottle from excessively protruding from the outer surface of the second sub-shell 12, thereby improving the compactness of the whole machine structure and helping to reduce the volume of the whole machine. The avoidance notch 1223 on the top wall 1221 makes the notch of the humidifier bottle fixing groove 1203 more compatible with the cross section of the humidifier bottle, so that the humidifier bottle can be better limited, further improving the position stability of the humidifier bottle.

[0112] Furthermore, if Figure 4 As shown, the width of the humidification bottle fixing groove 1203 gradually decreases from bottom to top.

[0113] The lower end width of the humidifier bottle fixing groove 1203 is larger, which increases the contact area with the bottom wall of the humidifier bottle, thereby improving the supporting stability of the humidifier bottle, while the upper end width of the humidifier bottle fixing groove 1203 is smaller, which can improve the lateral limiting effect on the humidifier bottle and reduce the lateral shaking of the humidifier bottle.

[0114] The above description is only a preferred embodiment of the present invention and does not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A housing, characterized in that: The shell includes a first sub-shell and a second sub-shell, and a accommodating chamber for placing the oxygen production component is formed inside the shell; an annular retaining ring is convexly provided on the outer surface of the second sub-shell, and the annular retaining ring surrounds an installation area, and an air inlet filter port is provided in the installation area, and the inner side of the air inlet filter port extends toward the accommodating chamber, and an air inlet filter pipe is provided, and the air inlet filter pipe is connected to the air inlet joint of the compressor inside the accommodating chamber through a pipeline, and is used to convey an intake air source to the compressor, the inner side of the air inlet filter port is communicated with the second sub-shell, and an air inlet filter cover is provided outside the air inlet filter port, and the air inlet filter cover is used to block the air inlet filter port from the outside, and a power switch is also provided in the installation area, and the power switch is used to control the start and stop of the oxygen production component.

2. The housing according to claim 1, characterized in that The installation area extends vertically in a long strip shape, the power switch and the air intake filter port are arranged vertically, and the power switch is located below the air intake filter cover.

3. A housing as claimed in claim 2, characterized in that: A retaining rib is provided between the air intake filter cover and the power switch to prevent the liquid at the air intake filter port from flowing to the power switch.

4. A housing as claimed in claim 3, characterized in that: The retaining rib extends in a horizontal direction, and two ends of the retaining rib bend and extend downward, and the length of the retaining rib is greater than the width of the power switch.

5. A housing as claimed in claim 2, characterized in that: A fuse is also arranged in the installation area, and the fuse is located below the air intake filter port.

6. A housing as claimed in claim 1, characterized in that: The second sub-shell has a side wall and a top wall. The installation area is centrally arranged on the side wall and extends up and down so that the installation area is bilaterally symmetrical about a vertical center line of the side wall.

7. A housing as claimed in claim 6, characterized in that: From bottom to top along the installation area, the protruding height of the annular retaining ring gradually increases.

8. A housing as claimed in claim 1, characterized in that: The mounting area is provided with a groove on the lower side of the air intake filter cover, so that a user can insert a finger into the groove to grab the air intake filter cover.

9. A housing as claimed in claim 8, characterized in that: The groove is an arc-shaped structure, and the center of the arc-shaped structure is located above the groove. The projection of the air intake filter cover toward the second sub-shell covers at least a portion of the groove.

10. A housing as claimed in claim 8, characterized in that: The power switch is located below the air intake filter cover, a retaining rib is provided between the air intake filter cover and the power switch, and an upper edge of the retaining rib intersects with a lower edge of the groove.

11. A housing as claimed in claim 1, characterized in that: A humidifier bottle fixing groove is provided on the outer side of the second sub-shell, and the humidifier bottle fixing groove is used for placing the humidifier bottle.

12. A housing as claimed in claim 11, characterized in that: The second sub-shell has side walls and a top wall, the side walls are provided with a receiving groove, the receiving groove extends upward to the top wall to form the humidification bottle fixing groove, the top wall is provided with an avoidance notch corresponding to the receiving groove, the avoidance notch constitutes the notch of the humidification bottle fixing groove, and the humidification bottle fixing groove is located at the upper right side of the installation area.

13. A housing as claimed in claim 12, characterized in that: The width of the humidification bottle fixing groove gradually decreases from bottom to top.

14. A housing as claimed in claim 12, characterized in that: The inner wall of the humidification bottle fixing groove is provided with at least one reinforcing rib, and the reinforcing rib extends vertically.

15. A housing as claimed in claim 1, characterized in that: A handle is provided on the shell.

16. A housing as claimed in claim 15, characterized in that: The first sub-shell has a first side wall and a first top wall, the second sub-shell has a second side wall and a second top wall, the first top wall is provided with a first handle, the second top wall is provided with a second handle, and the first handle and the second handle cooperate to form the handle.

17. A housing as claimed in claim 1, characterized in that: The air intake filter cover includes a blocking portion and a holding portion, the blocking portion is used to block the air intake filter port, the holding portion is used to hold, the projection of the holding portion toward the second sub-shell is larger than the projection of the blocking portion toward the second sub-shell and blocks the air intake filter port.

18. A housing as claimed in claim 1, characterized in that: The shell is provided with an air inlet, an air outlet and an oxygen outlet connector; the inner walls of the two sub-shells are matched with a plurality of pairs of protruding fixing grooves or fixing ribs. Due to the assembly of the two sub-shells, each pair of the fixing grooves or the fixing ribs forms a limiting structure for limiting and fixing the oxygen production component.

19. A nitrogen and oxygen separation device, characterized in that: The nitrogen and oxygen separation device comprises a shell as described in any one of claims 1-10.

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