Connector assembly, compressor and oxygen generator

Abstract

The invention relates to the technical field of connectors, in particular to a connector assembly, a compressor and an oxygenerator, the connector assembly comprises a connector main body, a heat dissipation piece and a plugging piece; the connector body is provided with a ventilation inner hole and at least one pressure relief channel communicated with the ventilation inner hole and the outer side of the connector body. The plugging pieces are movably arranged in the pressure relief channels; the connector body is sleeved with the heat dissipation piece, and the contact face of the heat dissipation piece and the connector body serves as a continuous heat conduction interface. By means of the arrangement, on one hand, the connector assembly has the function of leading out high-pressure gas into a related gas path; on the other hand, the connector assembly has the effect of releasing pressure in time so as to prevent the compressor and other related equipment from being damaged; in addition, the connector assembly has the characteristic of quickly discharging heat to prolong the service life of the connector assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of joints, and in particular to a joint assembly, a compressor and an oxygen concentrator. Background Art

[0002] In an oxygen concentrator module, the compressor is a key component whose primary function is to continuously supply compressed gas to the molecular sieve barrel. The oxygen production process relies on the molecular sieve's physical adsorption and desorption technology, physically purifying oxygen from the air and ultimately delivering pure oxygen with an oxygen concentration exceeding 90%. Due to the unique properties of molecular sieves, they impose specific requirements on the gas input by the compressor.

[0003] In the home oxygen concentrator industry, low temperature and low pressure have become key research areas to improve the adsorption efficiency of molecular sieves for nitrogen. However, effectively reducing the temperature of the gas entering the molecular sieve has become a thorny issue for many R&D engineers. Existing cooling measures have the following drawbacks in practical applications: 1. From the perspective of the compressor as a heat source, although reducing the compressor speed can achieve a certain degree of cooling, it will lead to a decrease in flow rate; 2. From the perspective of the gas transmission channel, adding heat dissipation coils or increasing the speed of axial fans will not only cause insufficient space, but also increase costs and even increase noise.

[0004] Furthermore, current oxygen concentrators may experience solenoid valve or pipeline failures, which can cause the gas generated by the compressor to accumulate in the pipeline, leading to a sharp increase in internal pipeline pressure, posing a serious threat to the oxygen concentrator and user safety. To address this issue, engineers typically connect a safety relief valve to the compressor exhaust line to release excess high-pressure gas in the event of a pipeline failure, ensuring the safety of the oxygen concentrator and users. However, this external pressure relief valve approach not only increases material and installation costs, but also creates greater challenges for the already compact space within the oxygen concentrator.

[0005] Therefore, how to solve the above-mentioned deficiencies in the prior art has become the subject to be studied and solved by the present invention. Summary of the Invention

[0006] The purpose of the present invention is to provide a joint assembly, a compressor and an oxygen concentrator.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is: A joint assembly includes a joint body, a heat dissipation component and a sealing component; The joint body has a ventilation inner hole and at least one pressure relief channel communicating with the ventilation inner hole and the outside of the joint body; The blocking member is movably provided in each of the pressure relief channels; The heat sink is sleeved on the outside of the joint body, and the contact surface between the two serves as a continuous heat conduction interface; The joint assembly has a ventilation state and a pressure relief state: In the ventilating state, the blocking member prevents the gas entering the vent inner hole from being discharged to the outside of the joint body through the pressure relief channel; In the pressure relief state, part of the gas entering the vent inner hole is discharged to the outside of the joint body through the pressure relief channel.

[0008] For ease of explanation and understanding, this application is described as the connector assembly being placed vertically during operation, which can be adjusted during actual use. The connector assembly is also described as being used in conjunction with a compressor.

[0009] In the above scheme, when the connector assembly is used, the connector body is connected to the compressor exhaust port to guide the high-pressure gas into the relevant gas path. Specifically, the normal exhaust work is completed by the vent inner hole. At this time, the connector assembly is in a ventilated state, and the sealing part blocks the pressure relief channel, so that the high-pressure gas can only be discharged through the vent inner hole (ignoring the very small amount of high-pressure gas that may leak out).

[0010] When the pressure inside the vent hole exceeds the rated value, the force acting on the sealing member gradually increases due to the effects of high temperature and high pressure. When the safety threshold of the compressor is exceeded, the sealing member will move to release the blockage of the pressure relief channel, allowing the pressure relief channel to open for exhaust. When this application is used in an oxygen concentrator, timely pressure relief can safely protect valves, pipelines and other structures.

[0011] During the normal exhaust and pressure relief operations of the joint assembly, due to the setting of the heat sink, the heat transferred from the high-pressure gas to the joint body can be quickly discharged through the heat sink, avoiding the service life of the joint assembly being affected by high temperature.

[0012] Through the above arrangement, on the one hand, the joint assembly has the function of exporting high-pressure gas to the relevant gas path; on the other hand, the joint assembly has the function of timely pressure relief to avoid damage to related equipment such as the compressor; on the third hand, the joint assembly has the characteristic of quickly dissipating heat to extend its own service life.

[0013] It should be emphasized that this application is described as being applied to a compressor and the compressor is applied to an oxygen concentrator. This application only improves the existing exhaust joint. While retaining the function of the exhaust joint to discharge the high-pressure gas in the compressor, it achieves the two important effects of reducing the compressor outlet temperature and safe pressure relief. There is no need to increase the internal space size of the oxygen concentrator, nor to change the layout of the internal components of the oxygen concentrator, and the application has strong practicality and reliability.

[0014] According to a further technical solution, the joint body includes a connecting section and a pressure relief section connected to each other, and the pressure relief channel is provided in the pressure relief section; Along the direction from the connecting section to the pressure relief section, the size of the pressure relief section gradually decreases; The heat sink has a clamping cavity for clamping with the pressure relief section, and the clamping contact surface of the two serves as the continuous heat conduction interface; The size of the engaging cavity gradually decreases along the direction from the connecting section toward the pressure relief section.

[0015] Through the dimension setting in this embodiment, during the installation of the heat sink, the pressure relief section gradually restricts the downward movement of the heat sink, so that the heat sink is fixed while having movable characteristics, providing convenience for operations that require moving the heat sink.

[0016] It should be noted that the connection between the connecting section and the pressure relief section is taken as an example for explanation, and the connection between other structures may refer to this explanation: the connection between the connecting section and the pressure relief section may be a non-detachable connection such as an integrated setting, or a detachable connection such as a threaded connection. This application does not limit these specific connection methods and will be adjusted according to actual conditions.

[0017] In a further technical solution, the pressure relief channels are provided with at least two; The pressure relief channels are evenly distributed around the axis of the joint body.

[0018] When there is only one pressure relief channel, when it is blocked, the pressure cannot be relieved or the pressure relief effect is less than expected, affecting the timeliness and effect of pressure relief. By increasing the number of pressure relief channels, this situation can be avoided. In addition, the pressure relief efficiency can be increased to a certain extent.

[0019] According to a further technical solution, there are two pressure relief channels.

[0020] The prerequisite for pressure relief is that the sealing part releases the blockage of the pressure relief channel, which requires the pressure in the joint assembly to reach a certain level. If there are too many pressure relief channels, the pressure in the pressure relief channel will decrease when the amount of gas entering the vent hole remains unchanged, causing the sealing part to be unable to be moved as expected, affecting the timeliness of pressure relief. By limiting the pressure relief channels to two, the risk of being unable to relieve pressure can be reduced, and the impact on the timeliness of pressure relief can also be reduced.

[0021] In a further technical solution, the pressure relief channel includes a first section, a second section and a third section that are connected in sequence, the first section is connected to the vent inner hole, and the third section is connected to the outer side of the joint body; During pressure relief, high-pressure gas enters the second section through the first section and is discharged to the outside of the joint body through the third section, forming a gas flow path; In the pressure relief state, the blocking member is located at an escape portion in the second section, and the escape portion is located outside the gas flow path; In a non-pressure relief state, the blocking member is located in the second section and blocks the gas flow path.

[0022] This section defines the structural composition of the pressure relief channel. When opening the pressure relief channel, it can be designed and opened in sections to meet diverse needs.

[0023] The blocking member can be arranged in the first section, the second section or the third section according to actual conditions. This application is described as the blocking member being arranged in the second section.

[0024] According to a further technical solution, the length direction of the second section is parallel to the length direction of the joint body; and / or, the length direction of the first section is perpendicular to the length direction of the joint body; and / or, the length direction of the third section is perpendicular to the length direction of the joint body; And / or, the blocking member is arranged in the second section.

[0025] Taking the example of the length direction of the second section being parallel to the length direction of the connector body, the effects of other similar descriptions are explained with reference to the following: compared with the angle between the length direction of the second section and the length direction of the connector body, the vertical setting adopted in this embodiment can reduce the space occupied by the second section in the radial direction of the connector body, thereby reducing the space occupied by this application in the radial direction of the connector body. Taking the use of this application in a compressor as an example, it can adapt to the compact space layout inside the compressor.

[0026] The length direction of the second section is parallel to the length direction of the joint body. In addition to the above effects, it also facilitates the vertical movement of the blocking member, especially facilitates its downward movement and reset, so that the pressure relief channel can be blocked in time.

[0027] According to a further technical solution, the blocking member is arranged in the second section; The cross-sectional dimensions of the first section and the third section are both larger than the cross-sectional dimension of the blocking member, so as to limit the blocking member from entering the first section and the third section.

[0028] The first section is the gas entry section, the third section is the gas discharge section, and the second section is the gas delivery section. The blocking piece is in the second section. During some time periods, the blocking piece needs to restrict the gas from entering the third section.

[0029] For ease of understanding, the moving path of the blocking member is illustrated here by way of example: a first position, a second position, and a third position are provided vertically from bottom to top; when the joint assembly is not working, the blocking member is in the first position; when the joint assembly is working normally, the blocking member moves upward to enter the second position; when a problem occurs in the joint assembly causing the internal pressure to increase, the blocking member continues to move upward to enter the third position; in the second position, the blocking member blocks the gas from entering the third section; for example, the blocking member may directly block the opening of the third section connected to the second section; when the blocking member continues to move upward to the third position, it at least cannot completely block the opening of the third section connected to the second section; for example, the blocking member may be completely above the opening of the third section connected to the second section.

[0030] By adopting the size restrictions in this section, the blocking piece can be prevented from entering the first section and the third section, thereby ensuring the long-term operation of the blocking piece and the reliability of the present application.

[0031] To facilitate the understanding of the cross-sectional dimension settings in this section, an example is given here for illustration. Other dimension settings in this application can be adapted to refer to this description for understanding: here the first section is set to be cylindrical and the radius of the longitudinal section is A, the sealing piece is set to be a sphere and the radius of the sphere is B, and B is equal to A.

[0032] According to a further technical solution, the blocking member is arranged in the second section; A portion of the second section adjacent to the opening of the end portion of the first section is not communicated with the first section, so as to restrict the blocking member from entering the first section.

[0033] It should be noted that, when the joint assembly is used vertically, the blocking piece can easily enter the first section but is not easy to enter the third section.

[0034] This section provides a second method of limiting the entry of the blocking piece into the first section. Here, the cross-sectional dimensions of the first section, the second section, and the blocking piece are all set to be the same. When the portion of the opening of the second section near the end of the first section is not connected to the first section, the cross-sectional dimension of the area through which the blocking piece can pass in the opening of the second section near the end of the first section is smaller than the cross-sectional dimension of the blocking piece, thereby limiting the entry of the blocking piece into the first section, thereby ensuring the long-term operation of the blocking piece and the reliability of this application.

[0035] According to a further technical solution, the pressure relief channel includes at least one arc-shaped channel; A portion of the inner wall of at least one of the arc-shaped channels is protruding to restrict the blocking member from entering the ventilation inner hole.

[0036] This section provides another setting of the pressure relief channel. The setting of the arc-shaped channel reduces the obstruction to the gas and improves the effect of gas discharge through the pressure relief channel.

[0037] Here, the pressure relief channel is explained as including only an arc-shaped channel. Part of the inner wall of this arc-shaped channel is protruding, so that the blocking piece can be restricted from entering the vent hole through this protruding part, thereby ensuring the long-term operation of the blocking piece and the reliability of this application.

[0038] According to a further technical solution, the blocking member is configured as a spherical structure.

[0039] The provision of the spherical structure can reduce the friction between the blocking member and the inner wall of the pressure relief channel, so that the blocking member can move in time, thereby improving the timeliness of pressure relief.

[0040] According to a further technical solution, in the ventilation state, the heat dissipation member blocks the opening of the pressure relief channel close to the outside of the connector body; In the pressure relief state, the heat dissipation element and the opening of the pressure relief channel close to the outside of the joint body are gradually separated.

[0041] The opening of the pressure relief channel close to the outer side of the joint body refers to the end opening of the third section away from the second section.

[0042] In the pressure relief state, the heat sink and the opening of the pressure relief channel close to the outer side of the connector body are gradually separated, and may be completely separated or not completely separated in the end.

[0043] There is usually a gap between the sealing piece and the inner wall of the pressure relief channel, and gas will be discharged through this gap, causing gas leakage. If a sealing structure such as a sealing ring is provided on the sealing piece, it will affect the movement of the sealing piece during the pressure relief process.

[0044] By using a heat dissipation member to block the opening of the pressure relief channel close to the outside of the joint body, the amount of gas leakage during the non-pressure relief period can be reduced.

[0045] It should be noted that although the setting of the heat sink in this part will cause the gas to be unable to be discharged immediately when the internal pressure of the joint assembly is abnormal, and it is necessary to wait for the internal pressure to increase further before it can be discharged, but considering the material and other characteristics of structures such as the joint assembly, it is generally not the case that the internal pressure value of the joint assembly is only slightly greater than the predetermined pressure value, which will cause damage to the joint assembly and other structures.

[0046] According to a further technical solution, a gas retention groove is formed on the outer surface of the joint body, the number of the gas retention grooves is the same as the number of the pressure relief channels, and the gas retention grooves are connected to the corresponding pressure relief channels and the outer side of the joint body.

[0047] Since the size of the pressure relief section and the size of the engaging cavity gradually decrease in the direction from the connecting section to the pressure relief section, the opening of the gas retention groove and the inner wall of the heat sink are both inclined, so that the gas discharged from the gas retention groove can push the heat sink to move in the length direction of the joint body, thereby realizing timely movement of the heat sink and ensuring timely pressure relief.

[0048] The gas retention groove is equivalent to expanding the end size of the third section away from the second section, so that the amount of discharged gas acting on the heat sink per unit time is greater and the airflow momentum is greater, thereby generating greater thrust, achieving more effective movement of the heat sink and ensuring timely pressure relief.

[0049] In a further technical solution, at least one annular groove is provided on the outer surface of the joint body, and an annular seal is provided in the annular groove; A portion of the annular seal protrudes from the annular groove.

[0050] The annular seal is initially fixed by the annular groove, and part of the annular seal protrudes from the annular groove. On the one hand, it can improve the sealing effect, limit the leakage of gas from between the joint body and the heat sink, reduce the amount of gas leakage or avoid gas leakage; on the other hand, it can prevent the heat sink from moving upward easily through the friction between the heat sink and the heat sink, and prevent the gas from being discharged directly through the gas retention groove without hindrance due to the movement of the heat sink.

[0051] According to a further technical solution, at least one of the annular grooves is provided above the gas retention groove along the gas flow direction in the ventilation inner hole.

[0052] For ease of understanding and explanation, the description herein is given as follows: the direction of gas flow in the vent hole refers to the direction from the connecting section toward the pressure relief section.

[0053] Taking into account the gas flow direction in the vent hole, the gas generally moves upward after being discharged through the gas retention groove. Therefore, this part sets the position of the annular groove to limit the gas leakage upward.

[0054] In a further technical solution, the heat sink comprises a heat sink body and a plurality of heat sink fins provided on the heat sink body, wherein the heat sink fins extend radially along the heat sink body. This arrangement can further increase the heat dissipation area and improve the heat dissipation efficiency.

[0055] According to a further technical solution, a heat-conducting layer is provided between the joint body and the heat sink.

[0056] The provision of the heat-conducting layer can facilitate the heat conducted to the connector body to be transferred to the heat sink by heat conduction, thereby increasing the cooling rate of the connector body and extending the service life of the connector body.

[0057] According to a further technical solution, in a direction perpendicular to the length direction of the joint body, a portion of the projection of the heat dissipation element is located on a side of the projection of the pressure relief section that is away from the projection of the connecting section.

[0058] This part actually makes the heat sink protrude upward compared to the pressure relief section in the length direction of the joint body. On the one hand, it can increase the heat exchange efficiency. On the other hand, it can also fix the silicone tube in the circumferential direction without hindering the installation and disassembly of the following silicone tube.

[0059] According to a further technical solution, at least two cutting edge planes are provided on the outer surface of the joint body.

[0060] The setting of the trimmed surface can provide a flat and stable clamping surface for a wrench or similar mounting device, so that such a device can better apply torque during operation and effectively avoid slipping. It is particularly suitable for situations where the pressure relief section is set as a truncated cone.

[0061] According to a further technical solution, the connector body includes two connected connector sub-bodies, and the two connector sub-bodies are symmetrically arranged in a direction perpendicular to the length direction of the connector body.

[0062] The joint body in this section is set as a half-type structure, which is convenient for installing the sealing parts and processing the joint body.

[0063] A compressor is also provided herein, comprising an air inlet and an air outlet, wherein the air inlet and the air outlet are respectively connected to an air inlet joint and an air outlet joint assembly, and the air outlet joint assembly is selected from the joint assembly in any of the above embodiments.

[0064] It should be noted that the joint assembly can be used not only in compressors but also in other existing devices. For ease of understanding and explanation, this application uses the joint assembly as an example of being used in a compressor for explanation.

[0065] According to a further technical solution, the compressor further comprises a silicone tube connected to the joint body; Along the length direction of the joint body, the silicone tube is attached to the end surface of the heat sink.

[0066] The silicone tube is an existing setting. The heat sink in this part can interact with the silicone tube. On the one hand, the silicone tube limits the upward movement of the heat sink. On the other hand, the heat sink limits the movement of the silicone tube in the circumferential direction of the joint body.

[0067] It should be noted that the heat sink may not contact the silicone tube in the circumferential direction of the joint body.

[0068] Also provided herein is an oxygen concentrator comprising the compressor according to any one of the above embodiments.

[0069] It should be noted that the compressor can be used not only in oxygen concentrators but also in other existing devices. For the convenience of understanding and explanation, this application uses the compressor as an oxygen concentrator for explanation.

[0070] According to a further technical solution, the oxygen concentrator further includes at least one cooling fan, and an air outlet of the cooling fan is arranged toward the heat sink.

[0071] The cooling fan is an existing setting. After the heat conducted to the joint assembly is transferred to the heat sink by heat conduction, the cooling fan can increase the heat dissipation speed of the heat sink, thereby achieving the purpose of quickly reducing the temperature of the joint assembly, thereby reducing the temperature of the compressor exhaust port, and ultimately improving the adsorption efficiency of the oxygen concentrator molecular sieve and extending the service life of the oxygen concentrator.

[0072] To sum up, in order to effectively utilize the remaining space inside the oxygen concentrator, to improve the heat dissipation efficiency and quickly reduce the intake air temperature, this application combines the heat dissipation layout inside the oxygen concentrator, considers the compressor outlet with the largest heat generation and heat transfer, and adopts a new type of compressor outlet joint with combined heat dissipation and pressure relief functions to replace the existing joint that can only meet basic exhaust. It not only takes into account the basic exhaust function of the joint, but also plays the heat dissipation and safety pressure relief functions. On the basis of not sacrificing the performance of the compressor and not adding more structural costs, by improving the existing compressor exhaust joint and making use of the original heat dissipation centrifugal fan of the oxygen concentrator, the joint has excellent heat dissipation characteristics, thereby reducing the intake air temperature of the sieve barrel. In addition, it can also prevent the danger of continuous excessive internal pressure in the pipeline, and ultimately improve the oxygen production efficiency and oxygen production safety of the oxygen concentrator. Therefore, the improvement of this application has practical economic benefits and broad application prospects, and is of outstanding practical and innovative significance.

[0073] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit this case. They are only used to distinguish components or operations described with the same technical terms.

[0074] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct or indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.

[0075] The terms “include,” “including,” and “have” used in this document are open-ended terms, meaning including but not limited to.

[0076] Unless otherwise noted, the terms used herein generally have their ordinary meanings in the art, in the context of this application, and in the specific context. Certain terms used to describe this application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art regarding the description of this application.

[0077] The terms "front", "back", "up", "down", "left", "right", etc. used in this article are all directional terms. In this case, they are only used to illustrate the positional relationship between the various structures, and are not used to limit the protection plan of this case and the specific direction during actual implementation.

[0078] The working principle and advantages of the present invention are as follows: when the connector assembly is in use, the connector body is connected to the compressor exhaust port to guide the high-pressure gas to the relevant gas path. Specifically, the normal exhaust work is completed by the vent inner hole. At this time, the connector assembly is in a venting state, and the sealing member blocks the pressure relief channel so that the high-pressure gas can only be discharged through the vent inner hole. When the pressure inside the vent inner hole exceeds the rated value, the force acting on the sealing member gradually increases due to the effects of high temperature and high pressure. When the safety threshold of the compressor is exceeded, the sealing member will release the blockage of the pressure relief channel by moving, so that the pressure relief channel is opened for exhaust. During the process of the connector assembly performing normal exhaust and pressure relief operations, due to the setting of the heat sink, the heat transferred from the high-pressure gas to the connector body can be quickly discharged through the heat sink, avoiding the high temperature affecting the service life of the connector assembly. Through the above setting, on the one hand, the connector assembly has the function of guiding the high-pressure gas to the relevant gas path; on the other hand, the connector assembly has the function of timely pressure relief to avoid damage to related equipment such as the compressor; on the other hand, the connector assembly has the characteristic of quickly discharging heat to extend its own service life.

[0079] To sum up, this application, through the coordination of the connector body, heat sink and sealing member, can not only improve the heat dissipation effect while ensuring product performance, but also has the advantages of compact structure and controllable cost, and provides protection for users' safe use through timely pressure relief. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] Figure 1 Schematic diagram of the three-dimensional structure of the connector body according to an embodiment of the present invention; Figure 2 This is one of the main views of the connector body according to an embodiment of the present invention; Figure 3 This is the second front view of the connector body according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of a connector body according to an embodiment of the present invention; Figure 5 This is the second cross-sectional view of the connector body according to an embodiment of the present invention; Figure 6This is a cross-sectional view of the connector assembly of an embodiment of the present invention when not in operation; Figure 7 This is a cross-sectional view of the connector assembly according to the embodiment of the present invention when it is working normally; Figure 8 This is a cross-sectional view of the connector assembly during pressure relief according to an embodiment of the present invention; Figure 9 A schematic diagram of the positional relationship between the cooling fan and the compressor in one embodiment of the present invention; Figure 10 Schematic diagram of the overall structure of the oxygen concentrator according to an embodiment of the present invention; Figure 11 Schematic diagram of the partial structure of the oxygen concentrator according to an embodiment of the present invention; Figure 12 Schematic diagram of the structure of the connector body and the heat sink according to an embodiment of the present invention.

[0081] In the above figures: 1. Connector body; 11. Ventilation inner hole; 12. Pressure relief channel; 121. First section; 122. Second section; 123. Third section; 13. Connecting section; 14. Pressure relief section; 15. Docking section; 16. Thread; 17. Gas retention groove; 18. Annular groove; 19. Cutting edge plane; 101. Connector body; 2. Heat sink; 3. Sealing part; 4. Annular seal; 6. Air inlet connector; 7. Cooling fan; 8. Compressor; 9. Oxygen generator; 10. Continuous thermal interface. DETAILED DESCRIPTION

[0082] The present invention will be further described below with reference to the accompanying drawings and embodiments: Embodiment: The present invention will be clearly illustrated below with drawings and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0083] The terms used herein are for describing specific embodiments only and are not intended to be limiting of the present invention. Singular forms such as "a," "the," "this," "this," and "the" as used herein also include plural forms.

[0084] See also Figures 1-12 , a joint assembly, comprising a joint body 1, a heat sink 2 and a blocking member 3; The joint body 1 has a ventilation inner hole 11 and at least one pressure relief channel 12 communicating with the ventilation inner hole 11 and the outside of the joint body 1; The blocking member 3 is movably provided in the pressure relief channel 12; The heat sink 2 is sleeved on the outside of the connector body 1, and the contact surface between the two serves as a continuous heat conduction interface 10; The joint assembly has a ventilation state and a pressure relief state: In the ventilation state, the blocking member 3 prevents the gas entering the ventilation inner hole 11 from being discharged to the outside of the joint body 1 through the pressure relief channel 12; In the pressure relief state, part of the gas entering the vent inner hole 11 is discharged to the outside of the joint body 1 through the pressure relief channel 12 .

[0085] For ease of explanation and understanding, this application is described as the connector assembly being placed vertically during operation, which can be adjusted during actual use. At the same time, the connector assembly is described as being used in conjunction with the compressor 8.

[0086] The specific design of the ventilation inner hole 11 refers to the existing ones.

[0087] The joint body 1 is made of common heat-conducting materials, such as copper alloy and aluminum alloy.

[0088] In some embodiments, the heat sink 2 includes a heat sink body and a plurality of heat sink fins disposed on the heat sink body, wherein the heat sink fins extend radially along the heat sink body. This arrangement can further increase the heat dissipation area and improve the heat dissipation efficiency.

[0089] When the joint assembly is in use, the joint body 1 is connected to the exhaust port of the compressor 8 to guide the high-pressure gas into the relevant gas path. Specifically, the normal exhaust work is completed by the vent inner hole 11. At this time, the joint assembly is in a ventilated state, and the sealing member 3 blocks the pressure relief channel 12, so that the high-pressure gas can only be discharged through the vent inner hole 11 (ignoring the very small amount of high-pressure gas that may leak out).

[0090] When the pressure inside the ventilation inner hole 11 exceeds the rated value (such as 250KPa), the force acting on the sealing member 3 gradually increases due to the effects of high temperature and high pressure. When the safety threshold of the compressor 8 is exceeded, the sealing member 3 will release the blockage of the pressure relief channel 12 by moving, so that the pressure relief channel 12 is opened for exhaust. When the present application is applied to the oxygen concentrator 9, the timely pressure relief operation can safely protect valves, pipelines and other structures.

[0091] During the normal exhaust and pressure relief operations of the joint assembly, due to the setting of the heat sink 2, the heat transferred from the high-pressure gas to the joint body 1 can be quickly discharged through the heat sink 2, avoiding the service life of the joint assembly being affected by high temperature.

[0092] Through the above-mentioned setting, on the one hand, the joint assembly has the function of exporting high-pressure gas to the relevant gas path; on the other hand, the joint assembly has the function of timely pressure relief to avoid damage to related equipment such as the compressor 8; on the other hand, the joint assembly has the characteristic of quickly dissipating heat to extend its own service life.

[0093] It should be emphasized that the present application is described as being applied to the compressor 8 and the compressor 8 is applied to the oxygen concentrator 9. The present application only improves the existing exhaust joint. While retaining the function of the exhaust joint to export the high-pressure gas in the compressor 8, it achieves the two important effects of lowering the outlet temperature of the compressor 8 and safely relieving the pressure. There is no need to increase the internal space size of the oxygen concentrator 9, nor to change the layout of the internal components of the oxygen concentrator 9. Therefore, the present application has strong practicality and reliability.

[0094] The continuous heat-conducting interface 10 can ensure heat dissipation effect due to its continuity.

[0095] To further help understand the advantages of this application, it is supplemented here: First of all, it should be noted that in the sieve barrel of the oxygen concentrator 9, the temperature has a key influence on the adsorption efficiency of the molecular sieve. When the inlet temperature is too high, the oxygen concentration will drop as the machine runs, and may even be so low as to sound an alarm. In order to reduce the intake air temperature, two aspects are mainly considered: the compressor 8 and the intake pipe. Since the cooling of the compressor 8 is relatively limited, the existing technology mainly takes measures on the intake pipe, including extending the heat dissipation coil and increasing the speed of the heat dissipation fan 7; When the heat dissipation coil is extended, the internal space size of the oxygen concentrator 9 needs to be increased, and the structural cost needs to be increased significantly. In addition, due to the large temperature difference between the gas temperature at the end of the heat dissipation coil and the temperature at the outlet of the compressor 8, condensation water is easily formed, and condensation water will seriously affect the use of molecular sieves. In contrast, the present application avoids the problems caused by extending the heat dissipation coil. Increasing the speed of the cooling fan 7 can temporarily improve the cooling efficiency, but it will accelerate the aging of the electronic components in the fan and increase the noise. In contrast, the present application avoids the problems caused by increasing the speed of the cooling fan 7.

[0096] See also Figure 1-Figure 5 In this embodiment, the joint body 1 includes a connecting section 13 and a pressure relief section 14 connected to each other, and the pressure relief channel 12 is provided in the pressure relief section 14; Along the direction from the connecting section 13 to the pressure relief section 14, the size of the pressure relief section 14 gradually decreases; The heat sink 2 has a locking cavity (not shown in the figure) for locking with the pressure relief section 14, and the locking contact surface between the two serves as the continuous heat conduction interface 10; The size of the engaging cavity gradually decreases along the direction from the connecting section 13 toward the pressure relief section 14 .

[0097] In some embodiments, a thread 16 is provided on the outer surface of the connecting section 13 for cooperating with the air outlet hole on the compressor 8 .

[0098] In some embodiments, the connector body 1 includes a docking section 15 , which is connected to a side of the pressure relief section 14 away from the connecting section 13 . The docking section 15 is used to connect to the silicone tube described below.

[0099] In some embodiments, the pressure relief section 14 can be considered as a frusto-conical shape.

[0100] Through the size setting in this embodiment, during the installation of the heat sink 2, the pressure relief section 14 gradually limits the downward movement of the heat sink 2, so that the heat sink 2 is fixed while having movable characteristics, providing convenience for operations that require moving the heat sink 2.

[0101] It should be noted that the connection between the connecting section 13 and the pressure relief section 14 is taken as an example for explanation, and the connection between other structures may refer to this explanation: the connection between the connecting section 13 and the pressure relief section 14 may be an integral setting such as a non-detachable connection, or a detachable connection such as a thread 16 connection. This application does not limit these specific connection methods and they are adjusted according to actual conditions.

[0102] See also Figure 4 In this embodiment, the pressure relief channels 12 are provided in at least two numbers; The pressure relief channels 12 are evenly distributed around the axis of the joint body 1 .

[0103] When there is only one pressure relief channel 12, when it is blocked, the pressure cannot be relieved or the pressure relief effect is less than expected, affecting the timeliness and effect of pressure relief. By increasing the number of pressure relief channels 12, this situation can be avoided. In addition, the pressure relief efficiency can be increased to a certain extent.

[0104] See also Figure 4 In this embodiment, two pressure relief channels 12 are provided.

[0105] The prerequisite for pressure relief is that the sealing member 3 releases the blockage of the pressure relief channel 12, which requires the pressure in the joint assembly to reach a certain level. If there are too many pressure relief channels 12, the pressure in the pressure relief channel 12 will decrease when the amount of gas entering the vent inner hole 11 remains unchanged, causing the sealing member 3 to be unable to be moved as expected, affecting the timeliness of pressure relief. By limiting the pressure relief channels 12 to two, the risk of being unable to relieve pressure can be reduced, and the impact on the timeliness of pressure relief can also be reduced.

[0106] See also Figure 4 In this embodiment, the pressure relief channel 12 includes a first section 121, a second section 122 and a third section 123 that are connected in sequence. The first section 121 is connected to the vent hole 11, and the third section 123 is connected to the outside of the joint body 1. During pressure relief, the high-pressure gas enters the second section 122 through the first section 121 and is discharged to the outside of the joint body 1 through the third section 123, forming a gas flow path. In the pressure relief state, the blocking member 3 is located in an escape portion in the second section 122 , and the escape portion is located outside the gas flow path; In a non-pressure relief state, the blocking member 3 is located in the second section 122 and blocks the gas flow path.

[0107] This embodiment defines the structural composition of the pressure relief channel 12. When the pressure relief channel 12 is opened, it can be designed and opened in sections to meet diverse needs.

[0108] The blocking member 3 can be arranged in the first section 121 , the second section 122 , or the third section 123 according to actual conditions. This application is described as if the blocking member 3 is arranged in the second section 122 .

[0109] The pressure relief passage 12 may include a fourth section and more sections. This application describes a three-section pressure relief passage 12 .

[0110] See also Figure 6-Figure 8 In this embodiment, the length direction of the second section 122 is parallel to the length direction of the connector body 1; and / or, the length direction of the first section 121 is perpendicular to the length direction of the connector body 1; and / or, the length direction of the third section 123 is perpendicular to the length direction of the joint body 1; And / or, the blocking member 3 is disposed in the second section 122 .

[0111] Taking the example of the length direction of the second section 122 being parallel to the length direction of the connector body 1, the effects of other similar descriptions are explained for reference: compared with the angle between the length direction of the second section 122 and the length direction of the connector body 1, the vertical setting adopted in this embodiment can reduce the space occupied by the second section 122 in the radial direction of the connector body 1, thereby reducing the space occupied by this application in the radial direction of the connector body 1. Taking the use of this application for compressor 8 as an example, it can adapt to the compact space layout inside the compressor 8.

[0112] The length direction of the second section 122 is parallel to the length direction of the joint body 1 . In addition to the above effects, it also facilitates the vertical movement of the blocking member 3 , especially facilitates its downward movement and reset, thereby timely blocking the pressure relief channel 12 .

[0113] In this embodiment, the blocking member 3 is disposed in the second section 122; The cross-sectional dimensions of the first section 121 and the third section 123 are both larger than the cross-sectional dimension of the blocking member 3 , so as to restrict the blocking member 3 from entering the first section 121 and the third section 123 .

[0114] The first section 121 is the gas entry section, the third section 123 is the gas discharge section, and the second section 122 is the gas delivery section. The blocking member 3 is in the second section 122 . In some time periods, the blocking member 3 needs to restrict the gas from entering the third section 123 .

[0115] For ease of understanding, the moving path of the blocking member 3 is illustrated here by way of example: a first position, a second position and a third position are provided vertically from bottom to top; when the joint assembly is not working, the blocking member 3 is in the first position; when the joint assembly is working normally, the blocking member 3 moves upward to enter the second position; when a problem occurs in the joint assembly causing the internal pressure to increase, the blocking member 3 continues to move upward to enter the third position; in the second position, the blocking member 3 blocks the gas from entering the third section 123; for example, the blocking member 3 may directly block the opening of the third section 123 connected to the second section 122; when the blocking member 3 continues to move upward to the third position, it at least cannot completely block the opening of the third section 123 connected to the second section 122; for example, the blocking member 3 may be completely above the opening of the third section 123 connected to the second section 122.

[0116] The first position mentioned above can be regarded as the bottom area of the second section 122 .

[0117] In some embodiments, when the pressure in the pipeline of the oxygen concentrator 9 reaches 170 KPa, the blocking member 3 enters the second position.

[0118] In some embodiments, the second section 122 has a smooth inner wall.

[0119] In some embodiments, the size of the second section 122 gradually decreases from bottom to top.

[0120] By limiting the size in this embodiment, the blocking member 3 can be prevented from entering the first section 121 and the third section 123 , thereby ensuring that the blocking member 3 can work durably and the reliability of the present application is ensured.

[0121] To facilitate understanding of the cross-sectional dimension setting in this embodiment, an example is given here for illustration. Other dimension settings in this application can be adaptively understood by referring to this description: here the first section 121 is set to be cylindrical and the radius of the longitudinal section is A, the sealing member 3 is set to be a sphere and the radius of the sphere is B, and B is equal to A.

[0122] See also Figure 6-Figure 8 In this embodiment, the blocking member 3 is disposed in the second section 122; An opening portion of the second section 122 close to the end of the first section 121 is not connected to the first section 121 , so as to restrict the blocking member 3 from entering the first section 121 .

[0123] It should be noted that, when the joint assembly is used vertically, the blocking member 3 can easily enter the first section 121 but cannot easily enter the third section 123 .

[0124] This embodiment provides a second way to limit the blocking member 3 from entering the first section 121. Here, the cross-sectional dimensions of the first section 121, the cross-sectional dimensions of the second section 122, and the cross-sectional dimensions of the blocking member 3 are all set to be the same. When the portion of the opening of the second section 122 near the end of the first section 121 is not connected to the first section 121, the cross-sectional dimension of the area through which the blocking member 3 can pass in the opening of the second section 122 near the end of the first section 121 is smaller than the cross-sectional dimension of the blocking member 3, thereby limiting the blocking member 3 from entering the first section 121, thereby ensuring the long-term operation of the blocking member 3 and the reliability of this application.

[0125] In this embodiment, the pressure relief channel 12 includes at least one arc-shaped channel (not shown); A portion of the inner wall of at least one of the arc-shaped channels is protruded to serve as a limiting portion to limit the blocking member 3 from entering the vent inner hole 11 .

[0126] In some embodiments, the protruding portion on the inner wall of the arc-shaped channel can further restrict the blocking member 3 from entering the outside of the connector body 1 .

[0127] This embodiment provides another arrangement of the pressure relief channel 12 . The arrangement of the arc-shaped channel reduces the obstruction to the gas and improves the effect of gas discharge through the pressure relief channel 12 .

[0128] Here, the pressure relief channel 12 is illustrated as including only an arc-shaped channel. Part of the inner wall of this arc-shaped channel is protruding, so that the blocking member 3 can be restricted from entering the vent inner hole 11 through this protruding portion, thereby ensuring the long-term operation of the blocking member 3 and the reliability of this application.

[0129] In some embodiments, the pressure relief channel 12 includes at least two arc-shaped channels that are connected in sequence.

[0130] See also Figure 6-Figure 8 In this embodiment, the blocking member 3 is configured as a spherical structure.

[0131] In some embodiments, the blocking member 3 is configured as a steel ball. During the pressure relief phase, the high-pressure gas forces the steel ball to move upward, overcoming gravity. After the pressure relief phase, the steel ball returns to its original position due to gravity. The blocking member 3 can also be an elastic member, which resets itself using its own tension, as described in detail in a spring structure. One end of this elastic member is fixed, which further limits its range of movement, thereby simplifying the structure of the pressure relief channel 12 and reducing costs.

[0132] The provision of the spherical structure can reduce the friction between the blocking member 3 and the inner wall of the pressure relief channel 12, so that the blocking member 3 can move in time, thereby improving the timeliness of pressure relief.

[0133] In some other embodiments, the blocking member 3 may adopt other shapes, which are not limited here.

[0134] See also Figure 6-Figure 8 In this embodiment, in the ventilation state, the heat dissipation member 2 blocks the opening of the pressure relief channel 12 close to the outside of the connector body 1; In the pressure relief state, the heat sink 2 and the pressure relief channel 12 are gradually separated from the opening close to the outside of the connector body 1 .

[0135] The configuration in this embodiment creates a synergistic effect between the heat dissipation structure (heat sink 2) and the pressure relief structure (pressure relief channel 12), linking the heat dissipation process with the pressure relief process. Specifically, the heat sink 2 blocks the gas delivery opening of the pressure relief channel 12, allowing the vent 11 to function normally. When the heat sink 2 unblocks the gas delivery opening, the pressure relief channel 12 is prompted to perform the pressure relief operation normally. The heat sink 2, in conjunction with the connector body 1, achieves the above-mentioned functions while continuing to perform the heat dissipation operation and also provides a sealing function. Based on this, the ventilation function, pressure relief function, and heat dissipation function of the connector assembly are linked. In some cases, the movement of the heat sink 2 facilitates gas leakage and causes the silicone tube to deform. The silicone tube then resets and pushes the heat sink 2 to reset. The heat sink 2 can also be reset solely by gravity.

[0136] The opening of the pressure relief channel 12 close to the outer side of the joint body 1 refers to the end opening of the third section 123 away from the second section 122 .

[0137] In the pressure relief state, the heat sink 2 and the opening of the pressure relief channel 12 close to the outside of the connector body 1 are gradually separated, and may or may not be completely separated in the end.

[0138] There is generally a gap between the blocking member 3 and the inner wall of the pressure relief channel 12, through which gas will be discharged, resulting in gas leakage. If a sealing structure such as a sealing ring is provided on the blocking member 3, it will affect the movement of the blocking member 3 during the pressure relief process.

[0139] By using the heat dissipation member 2 to block the opening of the pressure relief channel 12 close to the outside of the joint body 1, the amount of gas leakage during the non-pressure relief period can be reduced.

[0140] It should be noted that although the setting of the heat sink 2 in this embodiment will cause the gas to be unable to be discharged immediately when the internal pressure of the joint assembly is abnormal, and it is necessary to wait for the internal pressure to increase further before it can be discharged, but considering the material and other characteristics of the joint assembly and other structures, it is generally not the case that the internal pressure value of the joint assembly is only slightly greater than the predetermined pressure value, which will cause the joint assembly and other structures to be damaged.

[0141] See also Figure 3 In this embodiment, a gas retention groove 17 is formed on the outer surface of the joint body 1. The number of the gas retention grooves 17 is the same as the number of the pressure relief channels 12. The gas retention grooves 17 are connected to the corresponding pressure relief channels 12 and the outer side of the joint body 1.

[0142] Since the size of the pressure relief section 14 and the size of the engaging cavity gradually decrease along the direction of the connecting section 13 toward the pressure relief section 14, the opening of the gas retention groove 17 and the inner wall of the heat sink 2 are both inclined, so that the gas discharged from the gas retention groove 17 can push the heat sink 2 to move in the length direction of the joint body 1, thereby realizing timely movement of the heat sink 2 and ensuring timely pressure relief.

[0143] The gas retention groove 17 is equivalent to expanding the end size of the third section 123 away from the second section 122, so that the amount of discharged gas acting on the heat sink 2 per unit time is greater and the airflow momentum is greater, thereby generating greater thrust, achieving more effective promotion of the movement of the heat sink 2, and ensuring timely pressure relief.

[0144] See also Figure 4 、 Figure 8 In this embodiment, at least one annular groove 18 is provided on the outer surface of the joint body 1, and an annular seal 4 is provided in the annular groove 18; Part of the annular seal 4 protrudes from the annular groove 18 .

[0145] In some embodiments, the annular seal 4 is configured as a sealing ring.

[0146] The annular seal 4 is initially fixed by the annular groove 18, and part of the annular seal 4 protrudes from the annular groove 18. On the one hand, it can improve the sealing effect, limit the gas leakage from between the joint body 1 and the heat sink 2, reduce the gas leakage amount or avoid gas leakage; on the other hand, it can prevent the heat sink 2 from moving upward easily through the friction between the heat sink 2, and prevent the gas from being discharged directly through the gas retention groove 17 without hindrance due to the movement of the heat sink 2.

[0147] See also Figure 8 In this embodiment, along the gas flow direction in the ventilation inner hole 11, at least one annular groove 18 is arranged above the gas retention groove 17.

[0148] For ease of understanding and description, the description herein is given as if the gas flow direction in the vent inner hole 11 is from the connecting section 13 toward the pressure relief section 14 .

[0149] Considering the flow direction of gas in the vent hole 11, the gas generally moves upward after being discharged through the gas retention groove 17. Therefore, the position of the annular groove 18 is set in this embodiment to limit the upward leakage of gas.

[0150] In some embodiments, a single annular groove 18 is provided, and the annular groove 18 is provided above the gas retention groove 17 .

[0151] In some embodiments, two annular grooves 18 are provided. Along the gas flow direction in the ventilation inner hole 11 , the two annular grooves 18 are respectively provided on both sides of the gas retention groove 17 .

[0152] In this embodiment, a heat-conducting layer (not shown in the figures) is provided between the joint body 1 and the heat sink 2 , and the heat-conducting layer is provided at the continuous heat-conducting interface 10 .

[0153] In some embodiments, the heat-conducting layer is composed of thermal grease.

[0154] The provision of the heat-conducting layer can facilitate the heat conducted to the joint body 1 to be transferred to the heat sink 2 by heat conduction, thereby increasing the cooling speed of the joint body 1 and extending the service life of the joint body 1.

[0155] See also Figure 6-Figure 8 In this embodiment, in a direction perpendicular to the length direction of the joint body 1 , the projected portion of the heat dissipation member 2 is located on the side of the projection of the pressure relief section 14 away from the projection of the connecting section 13 .

[0156] In fact, this embodiment makes the heat sink 2 protrude upward compared to the pressure relief section 14 in the length direction of the joint body 1. On the one hand, it can increase the heat exchange efficiency. On the other hand, it can fix the silicone tube in the circumferential direction without hindering the installation and removal of the silicone tube described below.

[0157] See also Figure 1-Figure 2 In this embodiment, at least two cutting edge planes 19 are provided on the outer surface of the joint body 1 .

[0158] In some embodiments, the installation process of the connector body 1 is as follows: a wrench is used to screw the connecting section 13 into the air outlet of the compressor 8 and to reach a designated installation position.

[0159] The provision of the trimmed surface 19 provides a flat, stable clamping surface for a wrench or similar mounting device, allowing such a device to better apply torque during operation and effectively prevent slipping. This is particularly suitable for situations where the pressure relief section 14 is configured as a truncated cone (in which case the outer surface of the pressure relief section 14 is an overall curved surface).

[0160] In some embodiments, the trimming plane 19 is disposed separately from the annular groove 18 .

[0161] See also Figure 4 In this embodiment, the connector body 1 includes two connected connector sub-bodies 101 , and the two connector sub-bodies 101 are symmetrically arranged in a direction perpendicular to the length direction of the connector body 1 .

[0162] In this embodiment, the joint body 1 is configured as a half-type structure, which facilitates the installation of the blocking member 3 and the processing of the joint body 1 .

[0163] In some embodiments, after the sealing member 3 is installed, a special high-temperature anaerobic adhesive is coated on the mating surface of the connector sub-body 101 , and then the two connector sub-bodies 101 are tightly bonded along the mating surface to form the connector body 1 .

[0164] The relationship between the above structure and the joint sub-body 101 can be adjusted according to specific circumstances. For example, for the pressure relief channel 12, in one case, the pressure relief channel 12 is set as a single one and is located on one of the joint sub-bodies 101; in another case, the pressure relief channel 12 is set as a single one and is enclosed by two joint sub-bodies 101; in another case, the pressure relief channel 12 is set as two and the two pressure relief channels 12 are respectively set on the two joint sub-bodies 101; in yet another case, the pressure relief channel 12 is set as two and the two pressure relief channels 12 are enclosed by two joint sub-bodies 101.

[0165] See also Figure 9 A compressor is also provided herein, the compressor 8 includes an air inlet and an air outlet, the air inlet and the air outlet are respectively connected to an air inlet connector 6 and an air outlet connector assembly, and the air outlet connector assembly is selected from the connector assembly in any of the above embodiments.

[0166] It should be noted that the joint assembly can be used not only in the compressor 8 but also in other existing devices. For the convenience of understanding and explanation, this application uses the joint assembly as described in the compressor 8.

[0167] See also Figure 9 In this embodiment, the compressor 8 further includes a silicone tube (not shown in the figure) connected to the joint body 1; Along the length direction of the joint body 1 , the silicone tube is attached to the end surface of the heat sink 2 .

[0168] The silicone tube is an existing setting. The heat sink 2 in this embodiment can interact with the silicone tube. On the one hand, the silicone tube limits the upward movement of the heat sink 2. On the other hand, the heat sink 2 limits the movement of the silicone tube in the circumferential direction of the joint body 1.

[0169] It should be noted that the heat sink 2 may not contact the silicone tube in the circumferential direction of the joint body 1 .

[0170] The heat sink 2, as a heat dissipation structure, can also prevent gas leakage during the non-decompression phase. The movement of the heat sink 2 facilitates gas leakage. The movement of the heat sink 2 causes the silicone tube to deform, and the silicone tube is subsequently reset to push the heat sink 2 back to its original position.

[0171] In some embodiments, the silicone tube and the heat sink 2 are disposed separately.

[0172] In some embodiments, the silicone tube is sleeved on the docking section 15 and abuts against the heat sink 2 .

[0173] See also Figure 10 、 Figure 11 , an oxygen concentrator is also provided herein, comprising the compressor 8 in any of the above embodiments.

[0174] It should be noted that the compressor 8 can be used not only in the oxygen concentrator 9 but also in other existing devices. For the convenience of understanding and explanation, the present application uses the compressor 8 as an oxygen concentrator 9 for explanation.

[0175] See also Figure 10 、 Figure 11 In this embodiment, the oxygen concentrator 9 further includes at least one cooling fan 7 , and the air outlet of the cooling fan 7 is arranged toward the heat sink 2 .

[0176] The cooling fan 7 is an existing setting. After the heat conducted to the joint assembly is transferred to the heat sink 2 by heat conduction, the cooling fan 7 can increase the heat dissipation speed of the heat sink 2, thereby achieving the purpose of quickly reducing the temperature of the joint assembly, thereby reducing the temperature of the exhaust port of the compressor 8, and finally improving the adsorption efficiency of the molecular sieve of the oxygen concentrator 9 and extending the service life of the oxygen concentrator 9.

[0177] To sum up, in order to effectively utilize the remaining space inside the oxygen concentrator 9, to improve the heat dissipation efficiency and quickly reduce the intake air temperature, the present application combines the heat dissipation layout inside the oxygen concentrator 9, and considers the compressor 8 outlet with the largest heat generation (exhaust temperature can reach 130°C) and heat transfer capacity. A new type of compressor 8 outlet connector with combined heat dissipation and pressure relief functions is used to replace the existing connector that can only meet basic exhaust requirements. It not only takes into account the basic exhaust function of the connector, but also plays a heat dissipation and safety pressure relief function. On the basis of not sacrificing the performance of the compressor 8 and not adding more structural costs, by improving the existing compressor 8 exhaust connector and making use of the original heat dissipation centrifugal fan of the oxygen concentrator 9, the connector has excellent heat dissipation characteristics, thereby reducing the intake air temperature of the sieve barrel. In addition, it can also prevent the danger of continuous excessive internal pressure in the pipeline, and ultimately improve the oxygen production efficiency and oxygen production safety of the oxygen concentrator 9. Therefore, the improvement of the present application has practical economic benefits and broad application prospects, and has outstanding practical and innovative significance.

[0178] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A joint assembly, characterized in that: It comprises a joint body (1), a heat dissipation member (2) and a sealing member (3); The joint body (1) has a vent inner hole (11) and at least one pressure relief channel (12) communicating with the vent inner hole (11) and the outside of the joint body (1); The blocking member (3) is movably provided in each of the pressure relief channels (12); The heat sink (2) is sleeved on the outside of the joint body (1), and the contact surface between the two serves as a continuous heat conduction interface (10); The joint assembly has a ventilation state and a pressure relief state: In the ventilated state, the blocking member (3) prevents the gas entering the vent inner hole (11) from being discharged to the outside of the joint body (1) through the pressure relief channel (12); In the pressure relief state, part of the gas that enters the vent inner hole (11) is discharged to the outside of the joint body (1) via the pressure relief channel (12).

2. A joint assembly according to claim 1, characterized in that: The joint body (1) comprises a connecting section (13), a pressure relief section (14) and a docking section (15) sequentially connected in the length direction of the joint body (1), and the pressure relief channel (12) is provided in the pressure relief section (14).

3. A joint assembly according to claim 2, characterized in that: The heat sink (2) has a snap-fitting cavity for snapping with the pressure relief section (14), and the snap-fitting contact surface between the two serves as the continuous heat-conducting interface (10); Along the direction from the connecting section (13) toward the pressure relief section (14), the sizes of the pressure relief section (14) and the engaging cavity gradually decrease.

4. The connector assembly according to claim 1, wherein: The pressure relief channels (12) are provided in at least two portions; The pressure relief channels (12) are evenly distributed around the axis of the joint body (1).

5. The connector assembly according to claim 1, wherein: The pressure relief channel (12) comprises a first section (121), a second section (122) and a third section (123) which are connected in sequence, the first section (121) being connected to the vent inner hole (11), and the third section (123) being connected to the outer side of the joint body (1); During pressure relief, the high-pressure gas enters the second section (122) through the first section (121) and is released to the outside of the joint body (1) through the third section (123), forming a gas flow path; In the pressure relief state, the blocking member (3) is located in an escape portion in the second section (122), and the escape portion is located outside the gas flow path; In a non-pressure relief state, the blocking member (3) is located in the second section (122) and blocks the gas flow path.

6. A joint assembly according to claim 5, characterized in that: The blocking member (3) is arranged in the second section (122), and the cross-sectional dimensions of the first section (121) and the third section (123) are both larger than the cross-sectional dimensions of the blocking member (3), so as to restrict the blocking member (3) from entering the first section (121) and the third section (123); And / or, the blocking member (3) is arranged in the second section (122), and the opening portion of the second section (122) close to the end of the first section (121) is not connected to the first section (121), so as to limit the blocking member (3) from entering the first section (121).

7. The connector assembly according to claim 3, characterized in that: In the ventilation state, the heat dissipation element (2) blocks the opening of the pressure relief channel (12) close to the outside of the joint body (1); In the pressure relief state, the heat sink (2) and the pressure relief channel (12) are gradually separated from the opening close to the outside of the joint body (1).

8. The connector assembly according to claim 7, characterized in that: A gas retention groove (17) is formed on the outer surface of the joint body (1) corresponding to the pressure relief channel (12), and the gas retention groove (17) is connected to the corresponding pressure relief channel (12) and the outer side of the joint body (1).

9. The connector assembly according to claim 8, characterized in that: At least one annular groove (18) is provided on the outer surface of the joint body (1), and an annular sealing member (4) is provided in the annular groove (18); A portion of the annular seal (4) protrudes from the annular groove (18); Along the gas flow direction in the ventilation inner hole (11), at least one annular groove (18) is provided above the gas retention groove (17).

10. The connector assembly according to claim 1, characterized in that: The heat sink (2) comprises a heat sink body and a plurality of heat sink fins provided on the heat sink body, wherein the heat sink fins extend radially along the heat sink body.

11. A compressor, characterized in that: The compressor (8) comprises an air inlet and an air outlet, wherein the air inlet and the air outlet are respectively connected to an air inlet joint (6) and an air outlet joint assembly, wherein the air outlet joint assembly is selected from the joint assembly described in any one of claims 1 to 10.

12. An oxygen concentrator, characterized in that: It comprises a compressor (8) and at least one cooling fan (7), wherein the air outlet of the cooling fan (7) is arranged toward the cooling element (2); Wherein, the compressor (8) is selected from the compressor (8) described in claim 11.

Images