Pressure relief rod assembly, pressure relief male connector and connector assembly

Abstract

The present invention discloses a pressure relief rod assembly, a pressure relief male head and a joint assembly, comprising a pressure relief rod, a support and a seal I. The head end of the pressure relief rod is provided with a support and a seal I. The support forms a cavity I along the central axis. The inner wall of the cavity I is in clearance with the head end of the pressure relief rod. The seal I is used to cooperate with the inner wall of the cavity I to achieve sealing. The pressure relief rod moves in the axial direction relative to the support, and the seal I is always in the coverage range of the cavity I. The device optimizes the structure and adopts a conical surface sealing method to achieve low-resistance pressure relief. The seal moves within the range of the support to prevent the impact of the fluid medium and avoid the seal from being washed out, thereby effectively improving the reliability of the product.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid cooling, and in particular relates to a pressure relief rod assembly, a pressure relief male head and a joint assembly. Background Art

[0002] As the integration of electronic systems becomes increasingly high, the heat density of the system increases, and the choice of heat dissipation method tends to be liquid cooling technology. Liquid cooling technology has the advantages of low noise, small size, and high heat dissipation efficiency. In order to facilitate the maintenance of the liquid cooling system, modular design is often used. In the liquid cooling system, the connector is one of the key components of the system, with the function of quick disconnection of the module and fluid transmission.

[0003] The relevant prior art has the following defects: the connector is installed on the liquid cooling module. When the module is in storage, the pressure inside the module increases due to the increase in temperature. If the connector connected to the module does not have an automatic pressure relief function, there is a risk of damage to the module due to thermal expansion. Or if the connector has a pressure relief structure, when the internal pressure surges too much, the sealing ring at the pressure relief point may be detached, thereby causing the risk of product failure. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art and to provide a pressure relief rod assembly, a pressure relief male head and a joint assembly. The device optimizes the structure and adopts a conical surface sealing method to achieve low-resistance pressure relief. The seal moves within the range of the support to prevent fluid medium impact and avoid the seal from being washed off, thereby effectively improving the reliability of the product.

[0005] To achieve the above-mentioned purpose, one of the purposes of the present invention is to provide a pressure relief rod assembly, including a pressure relief rod, a support member and a seal member I. The head end of the pressure relief rod is provided with a support member and a seal member I. The support member forms a cavity I along the central axis. The inner wall of the cavity I is gap-matched with the head end of the pressure relief rod. The seal member I is used to cooperate with the inner wall of the cavity I to achieve sealing. During the movement stroke of the pressure relief rod relative to the support member in the axial direction, the seal member I is always within the coverage range of the cavity I.

[0006] As a preferred solution, it also includes an elastic member I and a stop member. The tail end of the pressure relief rod is provided with a stop member. The elastic member I is passed through the pressure relief rod and is located between the stop member and the support member.

[0007] As a preferred embodiment, the cavity I includes an inner conical cavity section and a cylindrical cavity section, the inner conical cavity section includes a large diameter end located at the head end and a small diameter end located at the tail end, the cylindrical cavity section is connected to the large diameter end, and the inner conical surface of the inner conical cavity section is used to achieve a cooperative seal with the seal I, and the seal I can move axially inside the inner conical cavity section and the cylindrical cavity section.

[0008] As a preferred solution, the head end of the pressure relief rod is provided with an annular groove I for installing a sealing member I.

[0009] As a preferred solution, a stop head is provided on one side of the head end of the annular groove I, a column head is provided on one side of the tail end of the annular groove I, and a pressure relief hole is provided on the stop head along the axial direction.

[0010] As a preferred solution, the pressure relief hole includes a large diameter section located at the head end and a small diameter section located at the tail end.

[0011] As a preferred embodiment, the cavity I also includes a sliding cavity section, which is connected to the small diameter end of the inner conical cavity section. A stop platform II is formed on one side of the tail end of the column head. A stop platform I is arranged in the sliding cavity section. The stop platform I cooperates with the stop platform II to form a stop limit for the pressure relief rod to move relative to the support member along the first axial direction.

[0012] As a preferred solution, a stop surface I for cooperating with the elastic member I is provided on one side of the rear end of the support member.

[0013] As a preferred solution, a stop surface II is further provided at the rear end of the support member, and the stop surface II is used to cooperate with the external elastic member II to provide a pre-tightening force to the pressure relief rod assembly in the axial direction through the support member.

[0014] As a preferred solution, a connecting clamp is further provided at the rear end of the support member, and the connecting clamp is located between the stop surface II and the stop surface I; the connecting clamp is used to fix and install one end of the elastic member II.

[0015] As a preferred solution, a stop surface III is formed on one side of the head end of the support member, and the stop surface III is used to form a stop fit with the external male head shell to form a stop limit for the support member to move along the second axial direction.

[0016] As a preferred solution, the stopper is integrally designed with the pressure relief rod or is connected with the pressure relief rod in a split manner.

[0017] As a preferred solution, the pressure relief rod comprises a pressure relief rod body, the tail end of the pressure relief rod body is provided with an external thread head, and the stopper is provided with an internal thread hole matching with the external thread head.

[0018] A second object of the present invention is to provide a pressure relief male connector, comprising the pressure relief rod assembly described in any one of the above items.

[0019] As a preferred embodiment, it includes a male shell and an elastic member II, wherein the male shell forms a cavity II along its central axis, the elastic member II is arranged in the cavity II, the pressure relief rod assembly abuts against the elastic member II at one end, and abuts against the male shell at the other end; the pressure relief rod assembly has two working positions, in the first working position, the pressure relief rod assembly is located at the port of the cavity II, for achieving flow channel closure or pressure relief, in the second working position, the pressure relief rod assembly is moved into the cavity II under top pressure, for achieving flow channel opening.

[0020] As a preferred solution, a sealing member II is further provided in the head end port of cavity II of the male housing, and the sealing member II is arranged in an annular groove II at the end of cavity II for sealing with the outer cylindrical surface of the head end of the support member.

[0021] As a preferred solution, a stop platform III is formed in the cavity II, and the tail end of the elastic member II abuts against the stop platform III.

[0022] A third object of the present invention is to provide a connector assembly, comprising the pressure relief male head described in any one of the above items and a pressure relief female head adapted to the pressure relief male head.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects: First, the present invention provides a pressure relief rod assembly through structural optimization and improvement. The structure of the pressure relief rod assembly can control the stroke of the pressure relief rod to ensure that the sealing member I at the head end of the pressure relief rod is within the range of the axial movement stroke of the pressure relief rod, and is within the range of the accommodating space surrounded by the support member and the head end of the pressure relief rod. The external support member and the head end of the pressure relief rod cooperate to form protection for the sealing member I, thereby effectively preventing the sealing member I at the head end of the pressure relief rod from being washed off.

[0024] Secondly, the present invention takes into account that the pressure relief process of the pressure relief rod is realized spontaneously. In order to improve the sensitivity during the pressure relief process and reduce the resistance of the pressure relief rod to axial movement during the pressure relief process, the matching sealing surface between the interior of the support and the seal I is set to a conical surface. When the pressure relief rod moves axially during the pressure relief process, the seal I moves toward the large diameter end during the pressure relief process, thereby reducing or avoiding the influence of viscous resistance on the seal I.

[0025] Third, in order to ensure the pressure relief effect, the present invention has a pressure relief hole at the head end of the pressure relief rod body. By setting the pressure relief hole as a stepped hole, the small diameter section is at the medium inlet end, and the large diameter section is at the medium outlet end. On the one hand, since the small diameter section is located close to the sealing component I, the compression damage of the inlet port of the pressure relief hole to the sealing component I can be avoided or reduced. On the other hand, by reducing the pressure relief inlet side, the stability and reliability of the system during frequent pressure relief can be effectively guaranteed to prevent sudden changes in system pressure.

[0026] Fourthly, the present invention also provides a pressure relief male head, which adopts conical surface sealing and automatic pressure relief mode, has the advantages of miniaturization, resistance to instantaneous high pressure relief, and seal I free from being dislodged, which can effectively improve the reliability of the product. In the non-plug-in working state, by adding a self-pressure relief structure on the pressure relief male head, the pressure relief function when the internal medium pressure exceeds a certain value is realized. By controlling the spring compression height and reasonably designing the size of the pressure relief rod and the support block, the seal I is always in the support state range of the space enclosed by the support member and the annular groove I during the sealing and pressure relief process, avoiding the risk of the seal I being impacted and falling out of the annular groove I when the internal pressure surges. In the plug-in working state, the seal II at the valve core in the male head, which has the function of conducting sealing, is in a state protected by the pressure relief sheath, and is also not in contact with the flow channel medium, which can avoid the risk of being impacted and falling out of the groove. In the non-plug-in state, the seal II cooperates with the outer cylindrical surface of the head end of the support member to achieve the sealing at the conducting flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 The internal structure of the pressure relief male head in the present invention Figure 1 : Sealed state; Figure 2 The internal structure of the pressure relief male head in the present invention Figure 2 : Sealed state; Figure 3 The internal structure of the pressure relief male head in the present invention Figure 1 : Pressure relief state; Figure 4 The internal structure of the pressure relief male head in the present invention Figure 2 : Pressure relief state; Figure 5 The internal structure diagram of the pressure relief male head in the present invention: a structure diagram along another longitudinal section; Figure 6 It is a schematic diagram of the flow channel after the pressure relief male connector and the pressure relief female connector in the present invention are plugged together; Figure 7 An exploded view of the pressure relief rod assembly of the present invention; Figure 8 It is a structural diagram of the support member in the present invention; Fig. 9 It is a structural diagram of the pressure relief rod in the present invention; Markings in the figure: 1. Pressure relief rod; 11. annular groove Ⅰ, 12. pressure relief hole, 13. stopper head, 14. column head, 141. stopper platform Ⅱ, 15. external thread head, 16. pressure relief rod body; 2. Elastic part I; 3. Stopper; 31. Internal threaded hole; 4. Support parts; 41. Cavity I, 411. Inner cone cavity section, 412. Cylindrical cavity section, 413. Sliding cavity section, 414. Stop platform I, 42. Stop surface I, 43. Stop surface II, 44. Connecting clamp, 45. Stop surface III, 46. Arc-shaped matching surface, 47. Cutting surface, 48. Sealing head, 49. Schematic diagram of the active area of ​​sealing member I in the cylindrical cavity section; 5. Seal Ⅰ; 6. Male housing; 61, cavity II, 62, ring groove II, 63, stopper III, 64, stopper IV, 65, shell I, 66, shell II, 67, sealing member V; 7. Elastic part II; 8. Seal II; 9. Pressure relief rod assembly; 100, pressure relief male connector; 200, pressure relief female connector; 201, pressure relief plug, 2011, plug head, 2012, stop platform VII, 202, pressure relief sleeve, 2021, cavity IV, 2022, limit platform I, 203, movable top sleeve, 2031, cavity V, 2032, limit platform II, 204, female head shell, 205, elastic part III, 206, elastic part IV, 207, seal III, 208, seal IV, 209, cavity III, 2091, stop platform V, 2092, stop platform VI. DETAILED DESCRIPTION

[0029] The present invention is described in detail below by means of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0030] It should be noted that, unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the invention belongs. The words "one", "an" or "the" and the like used in the patent application specification and claims of the present invention do not express quantitative limitations, but indicate the existence of at least one. Words such as "include" or "comprise" indicate that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, but do not exclude other elements or objects with the same function.

[0031] Example 1 As shown in the figure, this embodiment provides a pressure relief rod assembly, including a pressure relief rod 1, an elastic member Ⅰ2, a stop member 3, a support member 4 and a sealing member Ⅰ5, wherein the support member 4 is arranged at the head end of the pressure relief rod 1, the stop member 3 is arranged at the tail end of the pressure relief rod 1, the elastic member Ⅰ2 is passed through the pressure relief rod 1, and is located between the support member 4 and the stop member 3. Specifically, one end of the elastic member Ⅰ2 contacts with the support member 4, and the other end contacts with the stop member 3. The sealing member Ⅰ5 is sleeved on the head end of the pressure relief rod 1, and the pressure relief rod 1 can move relative to the support member 4 in the axial direction, and the support member 4 and the annular groove Ⅰ11 form a accommodating space for the sealing member Ⅰ5, thereby effectively protecting the sealing member Ⅰ5 to prevent the sealing member Ⅰ5 from being washed away by the fluid medium during the pressure relief process. The sealing member Ⅰ5 adopts an O-ring.

[0032] In a typical embodiment of the present invention, the pressure relief rod 1 includes a pressure relief rod body 16, the head end of the pressure relief rod body 16 is provided with an annular groove Ⅰ11 for installing a sealing member Ⅰ5, the tail end of the pressure relief rod body 16 is formed with an external thread head 15 for installing a stopper 3, and the two sides of the annular groove Ⅰ11 are respectively formed with a stopper head 13 and a column head 14, wherein the stopper head 13 is located at the head end of the annular groove Ⅰ11, the column head 14 is located at the tail end of the annular groove Ⅰ11, and a stopper platform Ⅱ141 is formed on one side of the tail end of the column head 14. Preferably, the stopper head 13 and the column head 14 are both approximately cylindrical or cylindrical structures, and the cross-sectional diameter of the column head Ⅰ13 is larger than the cross-sectional diameter of the column head Ⅱ14. A pressure relief hole 12 is formed on the stopper head 13 along the axial direction, and the number of the pressure relief holes 12 can be set as needed and evenly distributed around the stopper head 13. In order to ensure the reliability and stability during the pressure relief process, the pressure relief hole 12 adopts a stepped hole, including a small diameter section 121 located on the inlet side and a large diameter section 122 located on the outlet side. Such a design can prevent the system pressure from changing drastically due to the pressure relief process being too fast, thereby effectively ensuring the stability and reliability of the system pressure during frequent pressure relief. At the same time, since the seal Ⅰ5 is located on the side of the small diameter section 121, such a design can ensure that the port of the small diameter section 121 is in contact with the seal Ⅰ5, avoiding the seal Ⅰ5 from being squeezed by the stop head 13 under the elastic force of the elastic member Ⅰ2 and being damaged or fatigue-deformed, thereby extending the service life of the parts. It should be pointed out that the stopper 3 can be bonded, forcefully clamped or integrated with the pressure relief rod body 16 according to design requirements. When the internal medium pressure of the male head housing 6 where the pressure relief rod assembly 9 is located is low or within the design range, the seal Ⅰ5 can achieve the sealing function in the non-pressure relief state.

[0033] In this scheme, the support member 4 can be implemented as follows: the support member 4 is formed with a cavity Ⅰ41 along the axial direction, and the cavity Ⅰ41 includes a cylindrical cavity section 412, an inner conical cavity section 411 and a sliding cavity section 413 from the head end to the tail end, and the inner conical cavity section 411 includes a large diameter end and a small diameter end, wherein the cylindrical cavity section 412 is connected to the large diameter end of the inner conical cavity section 411, and the sliding cavity section 413 is connected to the small diameter end of the inner conical cavity section 411. A stop platform Ⅰ414 is arranged in the sliding cavity section 413, and the stop platform Ⅰ414 cooperates with the stop platform Ⅱ141 to form a stop limit for the pressure relief rod 1 to move relative to the support member 4 along the first axial direction. The first axial direction is the axial direction from the head end of the male shell 6 (the head end refers to the plug-in end where the male shell 6 cooperates with the pressure relief female head 200) to the tail end. The seal Ⅰ5 moves within the range of the inner conical cavity section 411 and the cylindrical cavity section 412 ( Figure 4 Figure 49 shows the active area of ​​the seal I in the cylindrical cavity section 412). The inner wall of the inner cone cavity section 411 is an inner cone surface. Under the pre-tension force of the elastic member I2 in the extended state, the seal I5 can be in close contact with the inner cone surface to ensure the sealing effect. When pressure relief is required, the pressure relief rod 1 moves in the second axial direction, which is opposite to the first axial direction (the second axial direction refers to the axial direction from the tail end to the head end of the male head shell 6), the elastic member I2 is compressed, and the seal I5 is separated from the inner cone surface of the inner cone cavity section 411 and moves to the side of the large diameter end, and finally can enter the cylindrical cavity section 412. After moving to a certain position, the seal I5 loses its sealing function, and the joint can achieve pressure relief. During the movement, due to the use of conical surface sealing, the seal I5 is not affected by the resistance of the support member 4, so it can achieve low resistance movement, which improves the sensitivity of the device during pressure relief.

[0034] In this solution, a connecting clamp 44 for fixing and installing the external elastic member II7 is provided on one side of the rear end of the support member 4. The number of connecting clamps 44 can be set according to design requirements. For example, as shown in the figure, two connecting clamps 44 are provided. The two connecting clamps 44 are symmetrically arranged. A stop surface I42 for abutting and cooperating with the end of the elastic member I2 is formed between the connecting clamps 44. One end of the elastic member I2 abuts against the stop member 3, and the other end abuts against the stop surface I42. A stop surface II43 abutting against the elastic member II7 is provided on the outer circumference of the connecting clamp 44. A stop surface III45 for cooperating with the external male shell 6 is provided on the outer cylindrical surface on one side of the head end of the support member 4. The male shell 6 cooperates with the stop surface III45 to stop and limit the movement of the support member 4 along the second axial direction.

[0035] In the present scheme, the elastic member Ⅰ2 adopts a spring, one end of the elastic member Ⅰ2 abuts against the stop surface of the stop member 3, and the other end abuts against the stop surface Ⅰ42 of the tail end of the support member 4. When the pressure relief rod 1 moves along the axial direction toward the head end of the male head shell 6, the stop member 3 will squeeze the elastic member Ⅰ2, and the elastic member Ⅰ2 will shorten after being compressed, and the sealing member Ⅰ5 will detach from the inner conical surface and lose the sealing effect. At this time, the fluid medium will enter through the gap between the pressure relief rod 1 and the cavity Ⅰ41 of the support member 4 (specifically, it can enter through the matching gap between the sliding cavity section 413 and the pressure relief rod 1), and finally release the pressure outward through the annular groove Ⅰ11 and the pressure relief hole 12. After the pressure is released, the elastic member Ⅰ2 will push the pressure relief rod 1 to reset, and the sealing member Ⅰ5 will fit and seal with the inner conical surface of the support member 4 again, thereby realizing the sealing function. The force generated by the elastic member Ⅰ2 in the extended state is used to overcome the medium pressure inside the system. When the system is over-pressured and the pressure relief rod 1 moves toward the head end of the male head shell 6 after being compressed, the spring force value determines the size of the pressure relief pressure value, and the spring compression height determines the travel of the pressure relief rod 1.

[0036] In one embodiment of the present scheme, the stop member 3 adopts a connecting nut, and an external hexagonal structure is formed on the outside of the connecting nut to facilitate screwing and assembly. The internal threaded hole 31 of the stop member 3 is threadedly connected with the external threaded head 15 of the pressure relief rod 1, thereby limiting one end of the elastic member Ⅰ2.

[0037] Example 2 As shown in the figure, this embodiment provides a pressure relief male head, including a male head shell 6, wherein the male head shell 6 is formed with a cavity II 61 along the axial direction, and an annular groove II 62 is formed at the head end of the cavity II 61, and a sealing member II 8 is installed inside the annular groove II 62, and the sealing member II 8 cooperates with the outer cylindrical surface of the head end of the support member 4 to achieve sealing, and the sealing member II 8 adopts an O-ring. An elastic member II 7 is also arranged in the cavity II 61, and the elastic member II 7 adopts a spring, one end of the elastic member II 7 abuts against the tail end of the support member 4, and the other end abuts against the stopper III 63 in the cavity II 61, and the elastic member II 7 is used to provide a pre-tightening force in the axial direction for the support member 4, that is, when the support member 4 is not subjected to other external forces, the support member 4 is abutted against the end of the cavity II 61 by the elastic member II 7, so that the entire pressure relief rod assembly 9 described in the embodiment 1 is fixed in the first working position through the support member 4. The pressure relief rod assembly 9 has two working positions, wherein in the first working position, the pressure relief rod assembly 9 is used to cooperate with the sealing member II8 to achieve sealing at the port of the cavity II61, or to achieve the pressure relief function through the pressure relief rod assembly 9. When the head end of the pressure relief rod assembly 9 is pressed, the elastic member II7 will be squeezed, and the pressure relief rod assembly 9 as a whole moves along the axial direction of the tail end of the male housing 6 to the second working position, thereby realizing the opening of the flow channel.

[0038] In the present scheme, the pressure relief rod assembly 9 includes a pressure relief rod 1, an elastic member Ⅰ2, a stop member 3, a support member 4 and a sealing member Ⅰ5, wherein the support member 4 is arranged at the head end of the pressure relief rod 1, the stop member 3 is arranged at the tail end of the pressure relief rod 1, the elastic member Ⅰ2 is passed through the pressure relief rod 1, and is located between the support member 4 and the stop member 3. Specifically, one end of the elastic member Ⅰ2 contacts with the support member 4, and the other end contacts with the stop member 3. The sealing member Ⅰ5 is sleeved on the head end of the pressure relief rod 1, and the pressure relief rod 1 can move relative to the support member 4 in the axial direction, and the support member 4 and the annular groove Ⅰ11 form a accommodating space for the sealing member Ⅰ5, thereby effectively protecting the sealing member Ⅰ5 and preventing the sealing member Ⅰ5 from being washed away by the fluid medium during the pressure relief process. The sealing member Ⅰ5 adopts an O-ring.

[0039] In this solution, the pressure relief rod 1 includes a pressure relief rod body 16, the head end of the pressure relief rod body 16 is provided with an annular groove Ⅰ11 for installing a sealing member Ⅰ5, the tail end of the pressure relief rod body 16 is formed with an external thread head 15 for installing a stopper 3, and the two sides of the annular groove Ⅰ11 are respectively formed with a stopper head 13 and a column head 14, wherein the stopper head 13 is located at the head end of the annular groove Ⅰ11, the column head 14 is located at the tail end of the annular groove Ⅰ11, and a stopper platform Ⅱ141 is formed on one side of the tail end of the column head 14. Preferably, the stopper head 13 and the column head 14 are both approximately cylindrical or cylindrical structures, and the cross-sectional diameter of the column head Ⅰ13 is larger than the cross-sectional diameter of the column head Ⅱ14. A pressure relief hole 12 is formed on the stopper head 13 along the axial direction, and the number of the pressure relief holes 12 can be set as needed and evenly distributed around the stopper head 13. In order to ensure the reliability and stability during the pressure relief process, the pressure relief hole 12 adopts a stepped hole, including a small diameter section 121 located on the inlet side and a large diameter section 122 located on the outlet side. Such a design can prevent the system pressure from changing drastically due to the pressure relief process being too fast, thereby effectively ensuring the stability and reliability of the system pressure during frequent pressure relief. At the same time, since the seal Ⅰ5 is located on the side of the small diameter section 121, such a design can ensure that the port of the small diameter section 121 is in contact with the seal Ⅰ5, avoiding the seal Ⅰ5 from being squeezed by the stop head 13 under the elastic force of the elastic member Ⅰ2 and being damaged or fatigue-deformed, thereby extending the service life of the parts. It should be pointed out that the stopper 3 can be bonded, forcefully clamped or integrated with the pressure relief rod body 16 according to design requirements. When the internal medium pressure of the male head housing 6 where the pressure relief rod assembly 9 is located is low or within the design range, the seal Ⅰ5 can achieve the sealing function in the non-pressure relief state.

[0040] In this embodiment, the support member 4 can be implemented as follows: the support member 4 is formed with a cavity Ⅰ41 along the axial direction, and the cavity Ⅰ41 includes a cylindrical cavity section 412, an inner cone cavity section 411 and a sliding cavity section 413 from the head end to the tail end, and the inner cone cavity section 411 includes a large diameter end and a small diameter end, wherein the cylindrical cavity section 412 is connected to the large diameter end of the inner cone cavity section 411, and the sliding cavity section 413 is connected to the small diameter end of the inner cone cavity section 411, and a stop platform Ⅰ414 is arranged in the sliding cavity section 413, and the stop platform Ⅰ414 cooperates with the stop platform Ⅱ141 to form a stop limit for the pressure relief rod 1 to move relative to the support member 4 along the first axial direction. The first axial direction is the axial direction from the head end of the male housing 6 (the plug-in end that cooperates with the pressure relief female head 200) to the tail end. The seal Ⅰ5 moves within the inner conical cavity section 411 and the cylindrical cavity section 412. The inner wall of the inner conical cavity section 411 is an inner conical surface. Under the pre-tension force of the elastic member Ⅰ2 in the extended state, the seal Ⅰ5 can be in close contact with the inner conical surface to ensure the sealing effect. When pressure relief is required, the pressure relief rod 1 moves in the second axial direction, which is opposite to the first axial direction (the second axial direction refers to the axial direction from the tail end to the head end of the male head shell 6), the elastic member Ⅰ2 is compressed, and the seal Ⅰ5 is separated from the inner conical surface of the inner conical cavity section 411 and moves to the side of the large diameter end, and finally can enter the cylindrical cavity section 412. After moving to a certain position, the seal Ⅰ5 loses its sealing function, and the joint can achieve pressure relief; during the movement, due to the use of conical surface sealing, the seal Ⅰ5 is not affected by the resistance of the support member 4, so it can achieve low resistance movement, which improves the sensitivity of the device during pressure relief.

[0041] In this solution, a connecting clamp 44 for fixing and installing the external elastic member II7 is provided on one side of the rear end of the support member 4. The number of connecting clamps 44 can be set according to design requirements. For example, as shown in the figure, two connecting clamps 44 are provided. The two connecting clamps 44 are symmetrically arranged. A stop surface I42 for abutting and cooperating with the end of the elastic member I2 is formed between the connecting clamps 44. One end of the elastic member I2 abuts against the stop member 3, and the other end abuts against the stop surface I42. A stop surface II43 abutting against the elastic member II7 is provided on the outer circumference of the connecting clamp 44. A stop surface III45 for cooperating with the external male shell 6 is provided on the outer cylindrical surface on one side of the head end of the support member 4. The male shell 6 cooperates with the stop surface III45 to stop and limit the movement of the support member 4 along the second axial direction.

[0042] In this embodiment, a portion of both sides of the support member 4 is cut off to form a cutting surface 47, and an arc-shaped mating surface 46 that radially cooperates with the cavity Ⅱ61 is formed on the periphery of the support member 4. When the pressure relief rod assembly 9 moves along the axial direction toward the tail end of the male head shell 6, the arc-shaped mating surface 46 can cooperate with the inner wall of the cavity Ⅱ61, thereby preventing the support member 4 from radially moving. The cutting surface 47 can form a flow channel gap with the inner wall of the cavity Ⅱ61 to achieve the opening of the flow channel.

[0043] In the present solution, the elastic member Ⅰ2 adopts a spring, one end of the elastic member Ⅰ2 abuts against the stop surface of the stop member 3, and the other end abuts against the stop surface Ⅰ42 of the tail end of the support member 4. When the pressure relief rod 1 moves along the axial direction toward the head end of the male head shell 6, the stop member 3 will squeeze the elastic member Ⅰ2, and the elastic member Ⅰ2 will shorten after being compressed, and the sealing member Ⅰ5 will detach from the inner conical surface and lose the sealing effect. At this time, the fluid medium will enter through the gap between the pressure relief rod 1 and the cavity Ⅰ41 of the support member 4, and finally release the pressure to the outside through the annular groove Ⅰ11 and the pressure relief hole 12. After the pressure is released, the elastic member Ⅰ2 will push the pressure relief rod 1 to reset, and the sealing member Ⅰ5 will fit and seal with the inner conical surface of the support member 4 again, thereby realizing the sealing function. The force generated by the elastic member Ⅰ2 in the extended state is used to overcome the medium pressure inside the system. When the system is over-pressured and the pressure relief rod 1 moves toward the head end of the male head shell 6 after being compressed, the spring force value determines the size of the pressure relief pressure value, and the spring compression height determines the travel of the pressure relief rod 1.

[0044] In this solution, the stopper 3 adopts a connecting nut, and an external hexagonal structure is formed on the outside of the connecting nut to facilitate screwing and assembly. The internal threaded hole 31 of the stopper 3 is threadedly connected with the external threaded head 15 of the pressure relief rod 1, thereby limiting one end of the elastic member Ⅰ2.

[0045] In this embodiment, the male housing 6 adopts an integrated design or a split design. Taking the split design as an example, the male housing 6 includes a housing Ⅰ65 and a housing Ⅱ66, wherein the end of the housing Ⅰ65 extends into the port of the large diameter end of the cavity of the housing Ⅱ66, and the connection between the two is sealed by a seal V. The two are connected by threaded connection, bonding or forced clamping. A stop platform Ⅲ63 is formed in the middle section of the inner part of the housing Ⅱ66, and the end of the elastic member Ⅱ7 abuts against the stop platform Ⅲ63. A stop platform Ⅳ64 is arranged on the circumference of the outer cylindrical surface of the male housing 6, and the stop platform Ⅳ64 is used to cooperate with the end of the matching pressure relief female head 200 to stop and limit. The pressure relief male head 100 product of this scheme integrates the self-pressure relief function of miniaturization, high reliability, and resistance to high pressure impact, and has the integrated characteristics of resistance to flow and impurity impact in the plug-in working state. The seal in this embodiment can be an O-ring.

[0046] The working principle of the pressure relief male connector 100 of this scheme is as follows: when the pressure relief male connector 100 is in a non-plugged working state on the liquid cooling module and the internal pressure is not high, the pressure relief rod 1 is in a stationary state, forming a sealing structure with the support member 4 and the sealing member I5, and the outlet of the pressure relief male connector 100 is in a sealed state. When the pressure relief male connector 100 is in a non-plugged working state on the module and the internal pressure becomes higher than the design range, the medium pressure pushes the pressure relief rod 1 to move toward the head end of the male connector housing 6 after overcoming the spring force of the elastic member I2. At the same time, the sealing member I5 on the pressure relief rod 1 also moves synchronously with the pressure relief rod 1. Since the conical surface sealing method is adopted at the sealing member I5, the pressure relief rod 1 can quickly overcome the viscous resistance of the sealing ring. When the sealing member I5 moves to the position of the inner conical inclined surface of the support member 4, the sealing function fails and the internal pressure of the product is released; the internal pressure of the pressure relief male connector 100 decreases, and the spring force pushes the pressure relief rod 1 back to the original position to re-form a sealing state.

[0047] In this solution, the compression height of the elastic member I is determined by calculating the required stroke of the pressure relief rod 1 in the pressure relief state, and by determining the control spring parameters, it is possible to ensure that the pressure relief rod 1 moves within a certain stroke and ensure that the seal I5 is always within the protection range of the support area of ​​the support member 4. Since the stop head 13 of the pressure relief rod 1 and the support member 4 are clearance-matched, and the clearance between the two is small, there is no risk of the seal I5 coming out when the pressure is relieved under the condition of a pressure surge.

[0048] Example 3 The present embodiment provides a connector assembly for depressurizing a liquid cooling system, comprising the pressure relief male connector 100 described in Embodiment 2 and a pressure relief female connector 200 adapted to the pressure relief male connector 100, wherein the pressure relief female connector 200 comprises a female connector housing 204, with the plug-in end of the pressure relief female connector 200 as its head end, and the female connector housing 204 is formed with a cavity III 209 along the axial direction, and the inner wall of the cavity III 209 is formed with a stopper V 2091 located at the head end and a stopper VI 209 located at the tail end. 092, a pressure relief plug 201 is arranged in the cavity III 209, the tail end of the pressure relief plug 201 passes through the cavity IV 2021 of the pressure relief sleeve 202 and is fixedly connected to the female head shell 204, the head end of the pressure relief plug 201 is formed with a plug head 2011, and a stopper VII 2012 is formed on one side of the tail end of the plug head 2011 to cooperate with the head end of the pressure relief sleeve 202, and the stopper VII 2012 is used to stop the pressure relief sleeve 202 from moving toward the head end of the female head shell 204. The pressure relief sleeve 202 is formed with a limit platform Ⅰ2022 on the outer cylindrical surface, and the tail end of the pressure relief sleeve 202 is provided with an elastic member Ⅲ205. One end of the elastic member Ⅲ205 abuts against one side of the tail end of the limit platform Ⅰ2022, and the other end abuts against the stop platform Ⅵ2092. One side of the head end of the limit platform Ⅰ2022 cooperates with the inner circumferential boss of the cavity Ⅴ2031 of the movable top sleeve 203, so as to form a pressure relief female head 202 to the pressure relief sleeve 202. 00, when the pressure relief male head 100 and the pressure relief female head 200 are plugged together, the movable top sleeve 203 abuts against the head end of the male head shell 6, and the pressure relief sleeve 202 is blocked by the internal circumferential boss of the movable top sleeve 203 and squeezes the elastic part III 205. The elastic part III 205 contracts, and the pressure relief top head 201 extends into the cavity II 61, so that the top head 2011 is separated from the head end of the pressure relief sleeve 202 to realize the opening of the flow channel.

[0049] In this solution, a movable top sleeve 203 is further provided on the outside of the pressure relief sleeve 202, and the movable top sleeve 203 is formed with a cavity V2031 along the axial direction, and a ring groove III is provided in the head end port of the cavity V2031, and the inside of the ring groove III is used to install a seal III207, and a limit platform II2032 is provided on the outer cylindrical surface of the movable top sleeve 203, and the limit platform II2032 cooperates with the stop platform V2091 at the head end of the female head shell 204 to stop and limit the axial movement of the movable top sleeve 203 toward the head end direction of the female head shell 204. The inner wall of the cavity V2031 is formed with a circumferential boss along the circumferential direction, and the circumferential boss cooperates with the limit platform I2022 of the pressure relief sleeve 202. The tail end of the movable top sleeve 203 is externally sleeved with an elastic member IV206, one end of the elastic member IV206 abuts against the movable top sleeve 203, and the other end abuts against the stop platform VI2092. The elastic member IV206 is used to provide a pre-tightening force for the movable top sleeve 203 to abut against the head end of the male head shell 6. When the pressure relief male head 100 and the pressure relief female head 200 are plugged in, the head end of the movable top sleeve 203 abuts against the male head shell 6. The head end of the male housing 6 abuts against the movable top sleeve 203, and the movable top sleeve 203 squeezes the elastic member IV206 at the tail end. The elastic member IV206 contracts and provides a pre-tightening force for the movable top sleeve 203 to abut against the head end of the male housing 6. The sealing members II8 and III207 are both sealed with the outer cylindrical surface of the pressure relief sleeve 202 and isolated from the flow channel medium, effectively avoiding the impact of the fluid medium on the sealing members II8 and III207. The sealing member I5 is protected by the support member 4 and the stop head 13 of the pressure relief rod 1 and isolated from the fluid medium, effectively To prevent impact from fluid media, a seal IV208 is provided at the head end of the cavity of the female shell 204. The seal IV208 cooperates with the outer cylindrical surface of the male shell 6. The port of the female shell 204 is sleeved on the male shell 6, and the head end of the female shell 204 abuts against the stop platform IV64 of the male shell 6. Preferably, more than two seals IV208 are provided in parallel along the axial direction and are distributed in the groove of the cavity III209 port of the female shell 204 along the axial direction. The seal in this embodiment can be an O-ring.

[0050] In this solution, the working principle of the pressure relief male head 100 and the pressure relief female head 200 is as follows: when the liquid cooling system is in working state, that is, the pressure relief male head 100 on the liquid cooling module is in plug-in connection state. After the pressure relief male head 100 and the pressure relief female head 200 are docked and finally plugged in place, the seals Ⅰ5 of the pressure relief male head 100 and the pressure relief female head 200 are isolated from the medium in the flow channel during the whole process, which can achieve functions such as resistance to flow impact and resistance to impurity impact. In the non-plug-in working state, the pressure relief male head 100 realizes the pressure relief function when the internal medium pressure exceeds a certain level through the self-pressure relief structure. By controlling the compression height of the elastic part Ⅰ2 and reasonably designing the size of the pressure relief rod 1 and the support part 4, the seal Ⅰ5 is always in the support state range between the shells during the sealing and pressure relief process, avoiding the risk of the seal Ⅰ5 being impacted and falling out of the groove when the internal pressure surges; the front end pressure relief hole 12 on the pressure relief rod 1 adopts a stepped hole to ensure the reliability and stability of pressure relief. In the plugged working state, the seal Ⅰ5 which plays the pressure relief function at the valve core in the pressure relief male head 100 is protected by the support part 4, that is, it is not in contact with the flow channel medium; the seal Ⅱ8 and the seal Ⅲ207 at the flow channel are in the protection range of the pressure relief sleeve 202, and are not in contact with the flow channel medium; the connection seal between the male head shell 6 and the female head shell 204 is sealed by a double sealing structure, and the sealing working state of the pressure relief male head 100 and the pressure relief female head 200 is highly reliable. When the pressure relief male head 100 and the pressure relief female head 200 are in the plugged working state, they can realize functions such as large flow impact and resistance to impurity impact.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. Pressure relief rod assembly, characterized in that: It includes a pressure relief rod, a support member and a sealing member I. The head end of the pressure relief rod is provided with a support member and a sealing member I. The support member forms a cavity I along the central axis. The inner wall of the cavity I is gap-matched with the head end of the pressure relief rod. The sealing member I is used to cooperate with the inner wall of the cavity I to achieve sealing. During the movement stroke of the pressure relief rod relative to the support member in the axial direction, the sealing member I is always within the coverage range of the cavity I.

2. The pressure relief rod assembly according to claim 1, characterized in that: It also includes an elastic member I and a stop member. The tail end of the pressure relief rod is provided with a stop member. The elastic member I is passed through the pressure relief rod and is located between the stop member and the support member.

3. The pressure relief rod assembly according to claim 1, characterized in that: The cavity body I includes an inner conical cavity section and a cylindrical cavity section, the inner conical cavity section includes a large diameter end located at the head end and a small diameter end located at the tail end, the cylindrical cavity section is connected to the large diameter end, the inner conical surface of the inner conical cavity section is used to achieve a cooperative seal with the seal I, and the seal I can move axially inside the inner conical cavity section and the cylindrical cavity section.

4. The pressure relief rod assembly according to any one of claims 1 to 3, characterized in that: The head end of the pressure relief rod is provided with an annular groove I for installing a sealing member I.

5. The pressure relief rod assembly according to claim 4, characterized in that: A stop head is arranged on one side of the head end of the annular groove I, a column head is arranged on one side of the tail end of the annular groove I, and a pressure relief hole is arranged on the stop head along the axial direction.

6. The pressure relief rod assembly according to claim 5, characterized in that: The pressure relief hole comprises a large diameter section located at the head end and a small diameter section located at the tail end.

7. The pressure relief rod assembly according to claim 5, characterized in that: The cavity body I also includes a sliding cavity section, which is connected to the small diameter end of the inner cone cavity section. A stop platform II is formed on one side of the tail end of the column head. A stop platform I is arranged in the sliding cavity section. The stop platform I cooperates with the stop platform II to form a stop limit for the pressure relief rod to move relative to the support member along the first axial direction.

8. The pressure relief rod assembly according to claim 4, characterized in that: A stop surface I for cooperating with the elastic member I is arranged on one side of the rear end of the support member.

9. The pressure relief rod assembly according to claim 4, characterized in that: The rear end of the support member is also provided with a stop surface II, and the stop surface II is used to cooperate with the external elastic member II to provide a pre-tightening force to the pressure relief rod assembly in the axial direction through the support member.

10. The pressure relief rod assembly according to claim 4, characterized in that: The rear end of the support member is also provided with a connecting clamp, and the connecting clamp is located between the stop surface II and the stop surface I; the connecting clamp is used to fix and install one end of the elastic member II.

11. The pressure relief rod assembly according to claim 4, characterized in that: A stop surface III is formed on one side of the head end of the support member, and the stop surface III is used to form a stop fit with the external male head shell to form a stop limit for the support member to move along the second axial direction.

12. The pressure relief rod assembly according to claim 4, characterized in that: The stopper is integrally designed with the pressure relief rod or is connected in a split manner.

13. The pressure relief rod assembly according to claim 12, characterized in that: The pressure relief rod comprises a pressure relief rod body, the tail end of the pressure relief rod body is provided with an external thread head, and the stopper is provided with an internal thread hole matched with the external thread head.

14. A pressure relief male connector, characterized in that: The invention comprises the pressure relief rod assembly according to any one of claims 1 to 13.

15. The pressure relief male connector according to claim 14, characterized in that: It includes a male shell and an elastic part II, wherein the male shell forms a cavity II along its central axis, the elastic part II is arranged in the cavity II, the pressure relief rod assembly abuts against the elastic part II at one end, and abuts against the male shell at the other end; the pressure relief rod assembly has two working positions, in the first working position, the pressure relief rod assembly is located at the port of the cavity II, for realizing flow channel closure or pressure relief, in the second working position, the pressure relief rod assembly is moved into the cavity II under top pressure, for realizing flow channel opening.

16. The pressure relief male connector according to claim 15, characterized in that: A sealing member II is also provided in the head end port of cavity II of the male housing. The sealing member II is arranged in an annular groove II at the end of cavity II and is used for sealing in cooperation with the outer cylindrical surface of the head end of the support member.

17. The pressure relief male connector according to claim 15, characterized in that: A stop platform III is formed in the cavity II, and the tail end of the elastic member II abuts against the stop platform III.

18. A joint assembly, characterized in that: It comprises the pressure relief male head as described in any one of claims 14 to 17 and a pressure relief female head adapted to the pressure relief male head.

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