Fluid coupling

Abstract

Some fluid coupling devices described herein are configured as non-spill fluid couplings. Furthermore, some embodiments described in this document relate to fluid coupling devices of modular construction, and to modules that can be universally incorporated into the construction of a variety of different types of fluid couplings. In addition, fluid treatment component coupling members are described.

Description

[0001] This application is a divisional application of an application with an application date of December 31, 2020, application number 202080091045.8, and invention name “Fluid Connector”.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This application claims the benefit of U.S. Provisional Application Serial No. 62 / 955,783, filed on December 31, 2019. The disclosure of that prior application is considered part of the disclosure of this application (and is incorporated herein by reference). Technical Field

[0004] This document relates to fluid coupling devices for fluid systems and methods of use thereof.For example, some embodiments described in this document relate to modularly constructed fluid coupling devices and to modules that can be universally incorporated into the construction of multiple different types of fluid couplings. Background Art

[0005] Fluid systems typically include components such as pipes, pumps, containers, fittings, couplings, heat exchangers, sensors, filters, valves, seals, etc. Such components can be connected together in a network using selectively connectable fluid coupling devices to define one or more fluid flow paths. Some fluid systems are closed systems, meaning that the fluid recirculates within the network of components. Other fluid systems are open systems, meaning that the fluid passes through the network of components only once before leaving the network.

[0006] Fluid coupling assemblies typically include a female coupling device and a male coupling device that are releasably connected to each other to form a fluid flow path therethrough. Such coupling assemblies can be used in a variety of applications, including biomedical applications, beverage dispensing, instrument connections, photochemical processing, liquid cooling, ink processing, etc.

[0007] In the case of some fluid systems, such as fluid systems for liquid cooling of electronic devices, it may be desirable to use a non-spill coupling with minimal or zero fluid spillage during connection and disconnection of the male and female couplings. For example, such a non-spill coupling would be used to limit exposure of the electronic device to fluids that could damage the electronic device. Summary of the invention

[0008] This document describes fluid coupling devices for fluid systems and methods of using the same. For example, some embodiments described in this document relate to fluid coupling devices of modular construction, and to modules that can be universally incorporated into the construction of multiple different types of fluid couplings. In the context of the present disclosure, the term "fluid" includes gases and liquids. The fluid coupling devices described herein may also be referred to herein as male and female couplings, "coupler halves" and / or "connectors." Male couplings may also be referred to herein as "inserts," and female couplings may also be referred to herein as "bodies."

[0009] In some embodiments described herein, the fluid coupling device described herein has a modular construction. That is, one or both of the coupling halves may include a core module that may be used in various types of fluid coupling outer bodies. In some embodiments, the core module includes a valve and one or more fluid seals.

[0010] In certain embodiments, the fluid coupling devices described herein are specifically designed with one or more mechanical components to configure the device as a "non-spill" coupling device. The devices described herein are referred to as non-spill coupling devices because the design of the fluid coupling device will reduce the likelihood of fluid being discharged from the fluid system (e.g., by blocking such a discharge path) and by preventing spillage associated with fluid contents within the fluid coupling device when the male and female portions of the coupling device are connected to each other and / or separated from each other.

[0011] On the one hand, the present invention relates to a fluid coupling device, which includes a fluid coupling housing, which defines a first opening leading to a coupling internal space defined in the fluid coupling housing. The fluid coupling device also includes a termination portion extending from the fluid coupling housing at an end of the fluid coupling housing opposite to the first opening. The termination portion defines a second opening leading to the coupling internal space. The fluid coupling device also includes a fluid coupling module disposed in the coupling internal space. The fluid coupling module includes a module housing that defines the module internal space. The fluid coupling module also includes a rod attached to the module housing and extending in the module internal space along the longitudinal axis of the fluid coupling module. The fluid coupling module includes a valve sleeve disposed between the rod and the module housing. The valve sleeve is capable of moving along the rod in the module internal space between (i) a closed position and (ii) an open position, in which the valve sleeve seals the first opening from the second opening, and in the open position, the first opening is connected to the second opening via the module internal space fluid.

[0012] Such a fluid coupling device may optionally include one or more of the following features. The fluid coupling device may also include an elastic seal disposed between the module housing and the fluid coupling housing. The fluid coupling device may also include: (i) a first elastic seal disposed between the rod and the valve sleeve when the valve sleeve is in a closed position; (ii) a second elastic seal disposed between the valve sleeve and the module housing when the valve sleeve is in a closed position; and (iii) a third elastic seal disposed in the module interior space and between the second elastic seal and the first opening. In some embodiments, when the valve sleeve is in a closed position, most of the inner diameter surface of the third elastic seal is spaced from the valve sleeve. The fluid coupling device may also include an annular spacer disposed between the second and third elastic seals. The rod may include a base attached to the module housing. The base may define an opening that connects the second opening fluid to the module interior space. In some embodiments, the opening includes four openings, each of which is in the shape of a quarter circle. The rod may include a base attached to the module housing, and the fluid coupling device may also include a spring disposed between the base and the valve sleeve that biases the valve sleeve toward the closed position. The fluid coupling device may also include a latch mechanism adjacent to the first opening. The latch mechanism can be laterally movable relative to the fluid coupling housing between (i) a latched position and (ii) an unlocked position, wherein the center of the opening defined by the latch mechanism is laterally offset relative to the center of the first opening, and wherein the opening defined by the latch mechanism is concentric with the first opening. The fluid coupling device can also include a spring located between the latch mechanism and the fluid coupling housing, the spring biasing the latch mechanism toward the latched position.

[0013] On the other hand, the present invention relates to a fluid connection module. The fluid connection module includes a module housing defining an interior space and a longitudinal axis. The module housing includes: (i) a first end defining a first end opening to the interior space, and (ii) a second end defining a second end opening to the interior space. The fluid connection module also includes a rod having a base attached to the second end of the module housing. The rod extends from the base along the longitudinal axis toward the first end. The fluid connection module also includes a valve sleeve arranged between the rod and the module housing. The valve sleeve is capable of moving along the rod in the interior space between (i) a closed position and (ii) an open position, in which the valve sleeve seals the first end opening from the second end opening, and in the open position, the first end opening is fluidly connected to the second end opening.

[0014] This fluid connection module may optionally include one or more of the following features. The base may define an opening that connects the second end opening fluid to the internal space. In some embodiments, the opening includes four openings, each of which is in the shape of a quarter circle. The rod may also include a head located on the end of the rod opposite to the base. The head may define an annular sealing groove configured to receive an elastic seal. The fluid connection module may also include: (i) a first elastic seal disposed in the annular sealing groove and in contact with the inner diameter of the valve sleeve when the valve sleeve is in the closed position; (ii) a second elastic seal disposed between the outer diameter of the valve sleeve and the module housing when the valve sleeve is in the closed position; and (iii) a third elastic seal disposed in the module internal space and between the second elastic seal and the first end opening. The fluid connection module may also include an annular spacer disposed between the second and third elastic seals. The annular spacer may contact each of the second and third elastic seals. The fluid connection module may also include a spring disposed between the base and the valve sleeve, which biases the valve sleeve toward the closed position.

[0015] On the other hand, the present invention relates to a fluid coupling assembly. The fluid coupling assembly includes a male coupling and a female coupling that are releasably coupled to each other. The male coupling includes a male shell defining an internal space and a longitudinal axis. The male coupling also includes a male coupling valve member located in the internal space, which can slide relative to the male shell along the longitudinal axis of the male shell between (i) an open position and (ii) a closed position, in which the first end of the male shell is fluidly connected to the second end of the male shell via the internal space of the male shell, and in the closed position, the male coupling valve member fluidly prevents the first end of the male shell from being fluidly connected to the second end of the male shell. The female coupling includes a female shell defining a first opening leading to the internal space defined in the female shell. The first opening is configured to receive an end portion of the male shell. The female coupling also includes a termination portion extending from the female shell at an end of the female shell opposite to the first opening. The termination portion defines a second opening leading to the internal space of the female shell. The female coupling also includes a fluid coupling module disposed in the internal space of the female shell. The fluid coupling module includes a module shell defining a module internal space. The fluid connection module also includes a rod attached to the module housing and extending along the longitudinal axis of the fluid connection module within the module interior space. The fluid connection module also includes a valve sleeve disposed between the rod and the module housing. The valve sleeve is movable along the rod within the module interior space between (i) a closed position and (ii) an open position, in which the valve sleeve seals the first opening from the second opening, and in which the first opening is fluidly connected to the second opening via the module interior space.

[0016] In some embodiments, the male connector and the female connector are configured such that the action of operably coupling the male connector to the female connector moves: (i) the male coupling valve member from its closed position to its open position, and (ii) the valve sleeve from its closed position to its open position, thereby creating an open fluid flow path through the fluid coupling assembly via the interior space of the male housing and the interior space of the module.

[0017] On the other hand, the present invention relates to a fluid coupling device, which includes a fluid coupling housing, which defines a first opening leading to a coupling internal space defined in the fluid coupling housing and a second opening leading to the coupling internal space. The fluid coupling device also includes a fluid coupling module disposed in the coupling internal space. The fluid coupling module includes a module housing that defines the module internal space. The fluid coupling module also includes a valve assembly disposed in the module internal space. The valve assembly is configured to be in (i) a closed position or (ii) an open position, in which the first opening is sealed and separated from the second opening, and in the open position, the first opening is connected to the second opening via the module internal space fluid.

[0018] Certain embodiments of the subject matter described in this document can be implemented to achieve one or more of the following advantages. First, some embodiments of the fluid coupling device provide improved non-spill connection and disconnection capabilities, which can advantageously reduce or eliminate fluid spillage in some cases. Therefore, these embodiments of the fluid coupling device described herein may be well suited for use in, for example, fluid systems that provide liquid cooling for electronic devices such as computers. Another benefit of the non-spill design of the fluid couplings described herein is that air entering the fluid system is minimized when the couplings are connected to each other.

[0019] Second, in some embodiments, the fluid coupling is advantageously modularly constructed. Such modular construction may provide advantages such as manufacturing flexibility and user flexibility. For example, a single module may be designed for a variety of different form factor types of fluid couplings. Thus, modular construction may contribute to related manufacturing efficiency advantages and reductions in inventory holding costs. Users of modular fluid couplings may also benefit from reduced costs due to the need to carry fewer and / or cheaper spare parts.

[0020] Third, some embodiments of the fluid coupling devices provided herein are advantageously designed with a robust latching system. That is, when the two halves of the coupling are operably connected to each other to provide a fluid flow path therethrough, they are also mechanically locked together. In some embodiments, in order to release the lock, the thumb latch must first be depressed. Such a latching system can reduce the possibility of accidental disconnection.

[0021] Fourth, in some embodiments, the fluid coupling device can advantageously provide the user with audible and / or tactile feedback related to the movement performed to physically separate the two parts of the fluid coupling device from each other. Such audible and / or tactile feedback can provide the user with an effective and definitive indication or confirmation of the proper function and desired configuration of the fluid coupling device.

[0022] Fifth, in some embodiments, the fluid coupling device can advantageously provide an indication of the temperature of the fluid inside the coupling by including a color-changing material (eg, a thermochromic polymer) that responds to temperature.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. In addition, the materials, methods, and examples of the embodiments described herein are illustrative only and not limiting.

[0024] The details of one or more embodiments of the invention are set forth in the drawings and the description. Other features, objects, and advantages of the invention will become apparent from the description and drawings, and from the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective view of a fluid coupling assembly according to some embodiments provided herein, including an example male fluid coupling device and an example female coupling device arranged in a split configuration.

[0026] Figure 2 yes Figure 1 An end view of the front face of a female fluid coupling device.

[0027] Figure 3 It is along Figure 2 The dotted line 3-3 intercepts Figure 1 A longitudinal cross-sectional view of a female fluid coupling device.

[0028] Figure 4 is a perspective view of an example fluid coupling module designed to accommodate Figure 1 The female fluid coupling device is provided with a plurality of fluid couplings.

[0029] Figure 5 yes Figure 4 Another perspective view of a fluid connection module.

[0030] Figure 6 yes Figure 4 End view of a fluid connection module.

[0031] Figure 7 It is along Figure 6 The dotted line 7-7 in Figure 4 A longitudinal sectional view of a fluid connection module.

[0032] Figure 8 yes Figure 4 Another end view of the fluid connection module.

[0033] Fig. 9 Can be combined Figure 4 A perspective view of another exemplary type of fluid coupling device of a fluid coupling module.

[0034] Fig.10 yes Fig. 9 An end view of the front side of a fluid coupling device.

[0035] Fig.11 It is along Fig.10 The dotted line 11-11 in Fig. 9 A longitudinal sectional view of a fluid coupling device.

[0036] Figure 12-14 Shows Figure 1 A perspective view, a side view and a longitudinal cross-sectional view of a valve sleeve component of a female fluid coupling device.

[0037] Figure 15-17 Shows Figure 1 A perspective view, a side view and a longitudinal cross-sectional view of a rod component of a female fluid coupling device.

[0038] Figure 18-20 Shows Figure 1 A perspective view, a top view and a longitudinal cross-sectional view of a housing component of a female fluid coupling device.

[0039] Figure 21-23 Shows Figure 1 A perspective view, a side view and a longitudinal cross-sectional view of a male fluid coupling device.

[0040] Figure 24-26 Shows Figure 1 Perspective, top and longitudinal cross-sectional views of a coupling assembly of , wherein a male coupler and a female coupler are engaged together in an operational configuration, defining an open fluid flow path therethrough.

[0041] Fig. 27 Shown is a perspective view of an example fluid handling component coupling according to some embodiments.

[0042] Fig.28 Yes Fig. 27 A longitudinal cross-sectional view of an example female fluid coupling device of a fluid handling component coupling collar.

[0043] Fig.29 Yes Fig. 27 A longitudinal cross-sectional view of an example male fluid coupling device of a fluid handling component coupling collar.

[0044] Like reference numerals refer to corresponding parts throughout. DETAILED DESCRIPTION

[0045] refer to Figure 1 , some example embodiments of the fluid coupling assembly 100 include a female coupling 110 and a male coupling 180, which are releasably connectable to each other. Here, the female coupling 110 and the male coupling 180 are depicted as arrangements in which they are not connected or not connected. When the female coupling 110 and the male coupling 180 are not connected (as shown in the figure), there is no open fluid flow path through the female coupling 110 or the male coupling 180. On the contrary, the valve in each of the female coupling 110 and the male coupling 180 is closed, so that no fluid can flow through the female coupling 110 or the male coupling 180, as further described below.

[0046] and Figure 1 on the contrary, Figure 24-26 (described further below) shows the female coupler 110 and the male coupler 180 in a fully coupled, operable arrangement. When the female coupler 110 and the male coupler 180 are in their fully coupled arrangement, the fluid flow path 101 ( Fig.26 ) is opened so that fluid can flow through the fluid coupling assembly 100 between the terminating portion 112 of the female coupling 110 and the terminating portion 182 of the male coupling 180. That is, when the female coupling 110 and the male coupling 180 are in their coupled arrangement, the fluid flow path 101 is open so that fluid can flow through each of the female coupling 110 and the male coupling 180. In other words, when the female coupling 110 and the male coupling 180 are in their coupled arrangement, the terminating portion 112 of the female coupling 110 and the terminating portion 182 of the male coupling 180 are fluidly connected.

[0047] Although the end portion 112 of the female connector 110 and the end portion 182 of the male connector 180 are depicted as barbed connections, it should be understood that the connector halves 110 and 180 can have any type of connection, such as but not limited to threaded connections, elbows, tees, sanitary fittings, compression fittings, etc. and combinations thereof.

[0048] The material from which one or more components of the fluid coupling assembly 100 are made includes thermoplastics and / or thermosetting plastics. In certain embodiments, the material from which the components of the fluid coupling assembly 100 are made is a thermoplastic, such as, but not limited to, acetal, polycarbonate, polysulfone, polyetheretherketone, polysulfide, polyester, polyvinylidene fluoride (PVDF), polyethylene, polyphenylsulfone (PPSU; e.g., ), polyetherimide (PEI; e.g. ), polypropylene, polyphenylene, polyaryletherketone, etc. and combinations thereof. In some embodiments, the material of one or more components of the fluid coupling assembly 100 includes metal, such as but not limited to stainless steel, brass, aluminum, plated steel, etc. In a particular embodiment, one or both of the coupling halves 110 and 180 are metal-free. In some embodiments, one or both of the coupling halves 110 and / or 180 include one or more metal spring members (e.g., spring steel, stainless steel, etc.). In certain embodiments, the fluid coupling assembly 100 includes one or more gaskets or seals made of materials such as but not limited to silicone, fluoroelastomer (FKM), ethylene propylene diene monomer (EPDM), thermoplastic elastomer (TPE), nitrile rubber, nitrile rubber, thermoplastic vulcanizate (TPV), etc. In some embodiments, the coupling or a portion thereof may be composed of a color-changing material (e.g., a thermochromic polymer) that responds to temperature. Therefore, the color of such a coupling may provide an indication of the temperature of the fluid inside the coupling.

[0049] It should be understood that the components of the fluid coupling assembly 100 (e.g., the female coupling 110 and the male coupling 180) can be scaled to virtually any desired size. Thus, the fluid coupling assembly 100 can be scaled to connect a variety of different pipe sizes from very small pipes (e.g., 3 mm or less in diameter) to very large pipes (e.g., 50 mm or more in diameter).

[0050] Figure 2 and Figure 3 1 shows a female coupler 110 with additional details. In summary, the female coupler 110 includes a female housing 120, a termination portion 112 extending from the female housing 120, and a fluid coupling module 140 disposed within an interior space defined by the female housing 120. The female housing 120 defines a first opening 122 configured to receive an end portion 184 of a male coupler 180 (see also Figure 1 ). The terminating portion 112 defines a second opening 113 .

[0051] The female coupler 110 defines a longitudinal axis 111 . In the illustrated embodiment, the termination portion 112 , the fluid coupling module 140 , and the first opening 122 are centered about the longitudinal axis 111 .

[0052] Fluid connection module 140 (which is Figure 4-810 is and may be considered to be a separate, independent component located within the female coupler 110. In other words, although the fluid coupling module 140 is described herein as being within the female housing 120 as part of the female coupler 110, it should be understood that the fluid coupling module 140 may be universally incorporated into a variety of different types of fluid couplers. In an additional non-limiting example, as further described below, the fluid coupling module 140 may be incorporated within a dual female fluid coupling device 200 (e.g., Figure 9-11 In some cases, the fluid coupling module 140 may be a stand-alone product.

[0053] As shown, the female coupler 110 also includes an optional latch mechanism 130 and a spring 138. The latch mechanism 130 is operable to releasably lock or latch the female coupler 110 and the male coupler 180 together in their fully coupled arrangement (e.g., as shown in FIG. Figure 24-26 In some embodiments, a latch mechanism is not included. Instead, the female coupler 110 and the male coupler 180 are held together by other external forces applied to the female coupler 110 and / or the male coupler 180.

[0054] The spring 138 is disposed between the thumb plate 132 of the latch mechanism 130 and the female housing 120. The latch mechanism 130 is laterally movable relative to the longitudinal axis 111 between a latched position (as shown) and an unlocked position, in which the thumb plate 132 (and the entire latch mechanism 130) is laterally moved toward the longitudinal axis 111 (i.e., in the unlocked position). Figure 3 The spring 138 biases the latch mechanism toward the latched position.

[0055] The latch mechanism 130 defines an opening 134. When the latch mechanism 130 is in the latched position (as shown), the center of the opening 134 is laterally offset from the center of the longitudinal axis 111 and the first opening 122. Thus, in the latched position, the crescent-shaped portion 135 of the latch mechanism 130 is located within the area defined by the first opening 122 (see FIG. Figure 2 ). When the latch mechanism 130 is in the unlocked position, the center of the opening 134 coincides with the center of the longitudinal axis 111 and the first opening 122. Therefore, when the latch mechanism 130 is in the unlocked position, the crescent-shaped portion 135 is no longer located within the area defined by the first opening 122. During the connection process of the female coupler 110 and the male coupler 180, the force generated by the insertion of the male coupler 180 will cause the latch mechanism 130 to move to its unlocked position, and then when the male coupler 180 is fully inserted into the female coupler 110, the latch mechanism 130 will return to its latched position.

[0056] Figure 4-8The fluid coupling module 140 is shown separately to describe its structure in more detail. The fluid coupling module 140 is a distinctly separate, independent component that can be used in a variety of different housings or form factors (e.g., in a female coupling 110, in a male coupling 110 ... Figure 9-11 The fluid coupling module 140 may also be considered a cartridge, a core, or the like.

[0057] The fluid coupling module 140 includes a module housing 142. In the depicted embodiment, the module housing 142 is generally cylindrical, but other shapes are possible. The module housing 142 defines a longitudinal axis 141 and an interior space 143.

[0058] The fluid coupling module 140 also includes a rod 144 disposed within the interior space 143. The rod 144 includes a base 145 (also Figure 15-17 ), which is a first end portion of the rod 144. The base 145 of the rod 144 is attached to the inner wall of the module housing 142. The rod 144 extends longitudinally along the longitudinal axis 141 of the fluid coupling module 140. Therefore, the rod 144 is suspended from its attachment of the base 145 to the module housing 142.

[0059] The fluid connection module 140 further includes a valve sleeve 150 disposed within the interior space 143. The valve sleeve 150 (also referred to as Figure 12-14 144 ) defines an open central region 154, whereby the valve sleeve 150 is disposed around the stem 144. Thus, the valve sleeve 150 is located between the stem 144 and the module housing 142.

[0060] The valve sleeve 150 can be moved along the stem 144 between a closed position (as shown) and an open position (when the valve sleeve 150 is translated to Figure 7 When the right side of Fig.26 When the valve sleeve 150 is in the closed position (as shown), the valve sleeve 150 blocks the potential fluid flow path through the fluid coupling module 140 from opening. Conversely, when the valve sleeve 150 is moved to its open position (e.g., Fig.26 As shown in FIG. 1 , since the valve sleeve 150 does not completely block the fluid flow path, the fluid flow path through the fluid coupling module 140 is open. Therefore, the valve sleeve 150, together with the rod 144 and the module housing 142, acts as a valve assembly to operably open or close the fluid flow path through the fluid coupling module 140 via the interior space 143 of the module housing 142.

[0061] The fluid coupling module 140 also includes a plurality of annular elastic seals (or simply referred to as "seals"). The seals may be made of materials such as, but not limited to, silicone, fluoroelastomer (FKM), ethylene propylene diene monomer (EPDM), thermoplastic elastomer (TPE), nitrile rubber, nitrile rubber, thermoplastic vulcanizate (TPV), thermosetting plastics, etc.

[0062] For example, the fluid coupling module 140 includes a first resilient seal 160 disposed between the stem 144 and the inner diameter of the valve sleeve 150 when the valve sleeve 150 is in the closed position (as shown). The first resilient seal 160 is disposed in an annular sealing groove 147 defined by the head 146 of the stem (see also Figure 15-17 As the valve sleeve 150 moves toward its open position (see Fig.26 ), the valve sleeve 150 moves out of contact with the first elastic seal 160.

[0063] The fluid coupling module 140 also includes a second elastomeric seal 162 disposed between the outer diameter of the valve sleeve 150 and the inner diameter of the module housing 142 when the valve sleeve 150 is in the closed position (as shown). The second elastomeric seal 162 is held in a fixed position relative to the module housing 142 so that when the valve sleeve 150 moves toward its open position (see FIG. Fig.26 ), the valve sleeve 150 moves out of contact with the second elastic seal 162.

[0064] The fluid coupling module 140 also includes a third resilient seal 166 disposed within the module interior space 143. The third resilient seal 166 is adjacent to an end of the module housing 142 that is opposite to an end of the base 145 of the module housing 142 to which the rod 144 is attached. Figure 3 ), the third elastic seal 166 is located between the second elastic seal 162 and the first opening 122. The third elastic seal 166 is configured to seal the end portion 184 of the male connector 180 when the male connector 180 is coupled to the female connector 110 (also refer to Figure 1 ).

[0065] The fluid coupling module 140 also includes a fourth resilient seal 168 disposed around the outer end of the module housing 142. When the fluid coupling module 140 is incorporated into the female coupler 110 (see, for example, Figure 3 ), the fourth resilient seal 168 is positioned against the inner diameter of the female housing 120. The fourth resilient seal 168 may also be positioned elsewhere to seal the female housing 120 (eg, the fourth resilient seal 168 may be a face seal against the female housing 120).

[0066] In some embodiments, an annular spacer 164 is disposed between the second elastomeric seal 162 and the third elastomeric seal 166. For example, the annular spacer 164 may be press-fit into an inner diameter of a portion of the module housing 142 configured to receive the second elastomeric seal 162 and the third elastomeric seal 166.

[0067] In some embodiments, when the valve sleeve 150 is in the closed position, the inner diameter surface of the third elastomeric seal 166 is spaced apart from the valve sleeve 150, so that the third elastomeric seal 166 and the valve sleeve 150 do not contact each other in any way. In some embodiments, when the valve sleeve 150 is in the closed position, most of the inner diameter surface of the third elastomeric seal 166 is spaced apart from the valve sleeve 150.

[0068] The fluid coupling module 140 further includes a spring 170. The spring 170 is disposed between the base 145 of the stem 144 and the valve sleeve 150. Thus, the spring 170 biases the valve sleeve 150 toward its closed position.

[0069] like Figure 9-11 As shown in the example of, the fluid coupling module 140 is configured to be modularly incorporated into various types of fluid couplings having different form factors. In this example, the double female fluid coupling device 200 includes two fluid coupling modules 140 (i.e., a first fluid coupling module 140a and a second fluid coupling module 140b). Therefore, it should be understood that the design of the fluid coupling module 140 facilitates the use of the fluid coupling module 140 as a component in combination with many different types of fluid couplings.

[0070] Figure 12-14 The valve sleeve 150 is shown in isolation so that its structure can be seen in greater detail. The valve sleeve 150 defines an open central area 154 in which the stem 144 is disposed.

[0071] The outer diameter of the valve sleeve 150 includes a smaller outer diameter portion 151 and a larger outer diameter portion 152. When the valve sleeve 150 is in its closed position, the smaller outer diameter portion 151 seals the second elastic seal 162 (see Figure 3 and 7 ). When the valve sleeve 150 is in its closed position (see Figure 3 and 7 ) and its open position (see Fig.26 ) when moving between the larger outer diameter portion 152 and the inner diameter of the module housing 142.

[0072] The transition between the smaller outer diameter portion 151 and the larger outer diameter portion 152 is adjacent to a radially inwardly extending annular shoulder of the module housing 142 (see Figure 3 and 7Mechanical interference between the transition (between the smaller outer diameter portion 151 and the larger outer diameter portion 152 ) and the annular shoulder of the module housing 142 defines the closed position of the valve sleeve 150 and prevents the valve sleeve 150 from moving further away from the base 145 of the stem 144 in response to the force from the spring 170 .

[0073] The inner diameter of the valve sleeve 150 includes a smaller inner diameter portion 155 and a larger inner diameter portion 156. When the valve sleeve 150 is in its closed position, the smaller inner diameter portion 155 seals against the first elastic seal 160 (see Figure 3 and 7 ). The larger inner diameter portion 156 defines a recess for the end portion of the spring 170 , and the end coils of the spring 170 abut against the transition between the smaller inner diameter portion 155 and the larger inner diameter portion 156 .

[0074] Figure 15-17 The rod 144 is shown separately so that its structure can be seen in more detail. The rod 144 includes a base 145 located at an end portion of the rod 144 and a head 146 located at an opposite end portion of the rod 144. A grooved shaft 148 of the rod 144 extends between the base 145 and the head 146 and interconnects them.

[0075] The base 145 is attached to the module housing 142 at the second end 1422 of the module housing 142 (eg, Figure 7 The rod 144 extends along the longitudinal axis 141 of the module housing 142 toward the first end 1421 of the module housing 142. The first end 1421 of the module housing 142 and the second end 1422 of the module housing 142 are both open ends of the module housing 142 leading to the module interior space 143.

[0076] The base 145 defines one or more openings that fluidly connect the second end 1422 of the module housing 142 to the module interior space 143. In other words, the base 145 does not completely isolate the module interior space 143 from the space outside the module housing 142. In the illustrated embodiment of the rod 144, the base 145 defines four openings, each of which is in the shape of a quarter circle. The four openings 149a, 149b, 149c, and 149d are located at Figure 5 and 8 See it most clearly.

[0077] Figure 18-20 The female housing 120 is shown alone so that its structure can be seen in more detail. Here, the female housing 120 is shown without its termination portion 112. The female housing 120 defines a first opening 122 leading to a coupling interior space 123 defined within the female housing 120. In an embodiment of the female coupler 110, a fluid coupling module 140 is disposed within the coupling interior space 123 (e.g., as shown in FIG. Figure 3 ,7 and 26).

[0078] In the illustrated embodiment, the female housing 120 defines a transverse slot 125 that movably receives a plate portion of the latch mechanism 130 that defines an opening 134 (see, e.g., Figure 3 ).

[0079] In the depicted embodiment, the female housing 120 includes a shroud 124 (e.g., as shown in FIG. 1 ) that covers the thumb plate 132 of the latch mechanism 130. Figure 3 and 24 1. In the depicted embodiment, the thumb plate 132 is recessed slightly below the top of the shroud 124 to help prevent inadvertent depression of the latch mechanism 130 (which could result in inadvertent separation of the female and male couplers 110, 180). The shroud 124 is an optional feature.

[0080] The inner diameter wall of the interior of the first opening 122 defines a series of longitudinally extending slots 126 (e.g., Figure 3 and 20 shown).

[0081] Figure 21-23 Male coupler 180 is shown separately so that its structure can be seen in more detail. Male coupler 180 includes a male housing 185 defining an interior space 186 and a longitudinal axis 181. Male coupler 180 includes a termination portion 182 defining an opening 183 leading to the interior space 186. Male coupler 180 also includes an end portion 184 (which is part of male housing 185).

[0082] The male coupling 180 also includes a male coupling valve member 187 that is movably disposed within the interior space 186 of the male housing 185. The male coupling valve member 187 includes a seal 188 that fluidically seals the opening defined by the end portion 184 from the interior space 186. The male coupling valve member 187 within the interior space 186 can be moved relative to the male housing 185 along the longitudinal axis 181 of the male housing 185 in (i) an open position and (ii) a closed position (e.g., Fig.23 As shown in the figure, in the open position, the first open end of the convex shell 185 defined by the end portion 184 is fluidly connected to the opening 183 via the internal space 186 of the convex shell 185, and in the closed position, the convex connecting valve member 187 (and its seal 188) fluidly prevents the first opening of the convex shell 185 defined by the end portion 184 from being fluidly connected to the opening 183 respectively.

[0083] Male coupler 180 also includes a spring 190 disposed within interior space 186 and arranged to bias male coupling valve member 187 toward its closed position. Coupling of male coupler 180 with female coupler 110 compresses spring 190 and moves male coupling valve member 187 from its closed position to its open position.

[0084] Figure 24-26 The fluid coupling assembly 100 is shown in a coupled arrangement. That is, the female coupling 110 and the male coupling 180 are coupled together, and their respective valves are open. Thus, an open fluid flow path 101 is established through the entire fluid coupling assembly 100. The open fluid flow path 101 extends between: (i) an opening 113 defined by the termination portion 112 of the female coupling 110; and (ii) an opening 183 defined by the termination portion 182 of the male coupling 180. The open fluid flow path 101 passes through an interior space 143 defined by the fluid coupling module 140 within the female coupling 110, and through an interior space 186 defined by the male housing 185 of the male coupling 180.

[0085] The valves of each coupler 110 and 180 move to their open positions. For example, when the female coupler 110 and the male coupler 180 are coupled together, the front face of the head 146 of the stem 144 of the fluid coupling module 140 abuts against the front face of the male coupling valve member 187 to move the male coupling valve member 187 to its open position. In addition, when the female coupler 110 and the male coupler 180 are coupled together, the front annular face of the end portion 184 of the male coupler 180 abuts against the annular front face of the valve sleeve 150 of the fluid coupling module 140 to move the valve sleeve 150 to its open position. Thus, the physical action of coupling the female coupler 110 and the male coupler 180 together opens their valves and creates an open fluid flow path 101 through the fluid coupling assembly 100.

[0086] Conversely, when the female coupler 110 and the male coupler 180 are separated from each other, the springs 170 and 190 force the valve sleeve 150 and the male coupling valve member 187 back to their closed positions, so that both the coupler halves 110 and 180 are sealed to prevent fluid leakage from the female coupler 110 and the male coupler 180. Fig.26 180, there is substantially no open area between the fluid coupling halves 110 and 180 that provides volume space for fluid contents. Therefore, when the valve sleeve 150 and the male coupling valve member 187 return to their closed positions and the fluid coupling halves 110 and 180 are separated from each other, there will be zero or substantially zero spillage or leakage. Therefore, when the fluid coupling halves 110 and 180 are separated from each other, there is substantially no fluid spillage.

[0087] Reference Fig. 27, a fluid treatment component coupler 300 (or more simply referred to as "coupler 300" hereinafter) can be used to connect two fluid treatment components to each other. In some embodiments, the coupler 300 is an integral thermoplastic component made by injection molding. In certain embodiments, the coupler 300 is an integral metal component made by machining, die casting, or metal injection molding. In some embodiments, the coupler 300 is assembled from multiple components.

[0088] As further described below, the connector 300 can be used as a part of the female connector and the male connector described herein. However, more generally, the connector 300 can be used to interconnect two fluid treatment components of any type, design or function. For example, the fluid treatment assembly may include a first fluid treatment component, a second fluid treatment component and a connector 300. The connector 300 can be used to interconnect the first and second fluid treatment components. In some cases, the connector 300 can be used to attach a termination component (e.g., a barb termination, a threaded termination, a sanitary fitting termination, etc.) to the second fluid treatment component, such as a connection body, a pipe, a housing, etc., but is not limited thereto. The connector 300 can be used to interconnect two fluid treatment components of any type, design and / or function.

[0089] The coupler 300 includes a peripheral member 310 that defines an opening 312 having a central axis 301. In the depicted embodiment, the peripheral member 310 is an open cylinder having a circular cross-sectional shape. In some embodiments, the cross-sectional shape of the peripheral member 310 can be other shapes, such as but not limited to oval, rectangular, oblong, elliptical, square, triangular, polygonal, etc.

[0090] The first series of stop elements 320a and the second series of stop elements 320b extend or protrude radially inward from the inner wall of the peripheral member 310. For example, in the illustrated embodiment, the first series of stop elements 320a includes four individual stop elements 320a that are equally spaced from one another around the inner circumference of the peripheral member 310. Similarly, the second series of stop elements 320b includes four individual stop elements 320b that are equally spaced from one another around the inner circumference of the peripheral member 310.

[0091] Although the stop elements can have various configurations, in the illustrated embodiment, each of the first and second series of stop elements 320a and 320b is an arcuate ramp or ratchet. The front end (lower end) of the ramp or ratchet is adjacent to the outer edge (edge) of the peripheral member 310. "Adjacent" means that the front end of the ramp or ratchet can be just at the outer edge of the peripheral member 310, or recessed a short distance from the outer edge of the peripheral member 310.

[0092] The height of each stop element (ramp) increases in a direction from the outer edge of the peripheral member 310 to which the stop element is adjacent toward the opposite outer edge of the peripheral member 310. Therefore, the coupler 300 is configured to allow a fluid treatment component to snap-engage with each end of the coupler 300. In this way, the coupler 300 can conveniently connect two fluid treatment components.

[0093] from Fig. 27 As can be seen in the diagram, there are gaps between the individual stop elements of the first series of stop elements 320a. Similarly, there are gaps between the individual stop elements of the second series of stop elements 320b. The gaps between the individual stop elements of the second series of stop elements 320b and the individual stop elements of the first series of stop elements 320a are axially aligned (e.g., as viewed along the central axis 301). Similarly, the gaps between the individual stop elements of the first series of stop elements 320a and the individual stop elements of the first series of stop elements 320a are axially aligned. Therefore, it can be said that each stop element of the first series of stop elements 320a is radially offset from each stop element of the second series of stop elements 320b, and each stop element of the second series of stop elements 320b is radially offset from each stop element of the first series of stop elements 320a.

[0094] In the example coupling 300 shown, each stop element of the first and second series of stop elements 320a-b extends about 45° along an arc around the central axis 301. In addition, each gap between the first and second series of stop elements 320a-b extends about 45° along an arc around the central axis 301. Other configurations are possible while maintaining the same basic structure. For example, in some embodiments, the stop elements 320a-b and the gaps extend about 60° along an arc around the central axis 301, or about 90° along an arc around the central axis 301, or about 36° along an arc around the central axis 301, or about 30° along an arc around the central axis 301, or about 20° along an arc around the central axis 301, but are not limited thereto.

[0095] Fig.28 An example of how a coupling 300 can be used to connect two fluid handling components is shown. In this example, the housing 120 of the female coupling 110 (described above, see, for example, Figure 3 ) is modified to use coupling 300. Thus, the improved female coupling is Fig.2810 ', and the housings are referred to as: (i) body housing 120a and (ii) termination housing 120b. In this example, termination housing 120b includes a threaded termination portion 112', in contrast to barbed termination portion 112 of female coupler 110. Thus, this example illustrates how coupler 300 can be easily used to facilitate the combination of different types of termination portions in conjunction with the base design of female coupler 110. This capability can thereby provide manufacturing efficiencies and / or user convenience (e.g., by allowing a user to select a desired type of termination portion).

[0096] In the depicted example, the main body housing 120a and the termination housing 120b are joined (mechanically attached) by the connector 300. To ensure mechanical attachment, each of the main body housing 120a and the termination housing 120b defines one or more recesses that receive the stop elements of the first and second series of stop elements 320a and 320b. In some embodiments, the one or more recesses defined by the main body housing 120a and the termination housing 120b are each annular grooves (extending continuously and completely circumferentially). The illustration of the female connector 110' shows the two stop elements of the connector 300 engaged in the recess defined by the main body housing 120a, but does not show the stop elements of the connector 300 engaged in the recess defined by the termination housing 120b. This is a simple case because the cross-sectional view just cuts through the stop elements engaged in the recess defined by the main body housing 120a, but does not cut through the stop elements engaged in the recess defined by the termination housing 120b. Although not visible in this illustration, there is in fact a stop element that engages in a recess defined by the termination housing 120b.

[0097] In the illustrated embodiment, the coupler 300 allows the main housing 120a to rotate relative to the termination housing 120b. Alternatively, in some embodiments, the coupler 300 (and / or the housings 120a-b) can be configured to prevent or limit such relative rotation. For example, in some embodiments, the coupler 300 can include one or more keying elements that engage with one or more complementary structural elements of the main housing 120a and / or the termination housing 120b to prevent or limit relative rotation. In another example, one or more stop elements of the coupler 300 can be structurally different from other stop elements of the same coupler 300, and such different stop elements can be used to cooperate with one or more complementary structural elements (e.g., different types of recesses, such as deeper recesses) of the main housing 120a and / or the termination housing 120b to prevent or limit relative rotation.

[0098] Fig.29Another example of how a coupling 300 can be used to connect two fluid handling components is shown. In this example, the housing 185 of the male coupling 180 (described above, see, for example, Fig.23 ) is modified to use coupling 300. Thus, the improved male coupling is Fig.29 In the example, the connector 300 is referred to as the male connector 180', and the housings are referred to as: (i) the main housing 185a and (ii) the termination housing 185b. In this example, the termination housing 185b includes a threaded termination portion 182', which is in contrast to the barbed termination portion 182 of the male connector 180. Therefore, this example shows how the connector 300 can be easily used to facilitate the combination of different types of termination portions in conjunction with the basic design of the male connector 180. This ability can therefore provide manufacturing efficiency and / or user convenience (e.g., by allowing the user to select the desired type of termination portion). In addition, in some embodiments, the connector 300 is reversible. Alternatively, in some embodiments, the connector is irreversible.

[0099] In the depicted example, the main body housing 185a and the termination housing 185b are joined (mechanically attached) by the coupling 300. To ensure mechanical attachment, each of the main body housing 185a and the termination housing 185b defines one or more annular recesses that receive the stop elements of the first and second series of stop elements 320a and 320b. In some embodiments, the annular recesses defined by the main body housing 185a and the termination housing 185b are each annular grooves (extending continuously and completely circumferentially). The illustration of the male coupling 180' shows the two stop elements of the coupling 300 engaged in the recess defined by the main body housing 185a, but does not show the stop elements of the coupling 300 engaged in the recess defined by the termination housing 185b. This is a simple case because the cross-sectional view just cuts through the stop elements engaged in the recess defined by the main body housing 185a, but does not cut through the stop elements engaged in the recess defined by the termination housing 185b. Although not visible in this illustration, there is in fact a stop element that engages in a recess defined by the termination housing 185b.

[0100] In the illustrated embodiment, the coupler 300 allows the main housing 185a to rotate relative to the termination housing 185b. Alternatively, in some embodiments, the coupler 300 (and / or the housings 185a-b) can be configured to prevent or limit such relative rotation. For example, in some embodiments, the coupler 300 can include one or more keying elements that engage with one or more complementary structural elements of the main housing 185a and / or the termination housing 185b to prevent or limit relative rotation. In another example, one or more stop elements of the coupler 300 can be structurally different from other stop elements, and different stop elements can be used to cooperate with one or more complementary structural elements (e.g., different types of recesses, such as deeper recesses) of the main housing 185a and / or the termination housing 185b to prevent or limit relative rotation.

[0101] Although this specification contains many specific implementation details, these should not be interpreted as limitations on any invention or the scope of the claims, but rather as descriptions of features specific to specific embodiments of specific inventions. Certain features described in this specification in the context of independent embodiments may also be implemented in combination in a single embodiment. Conversely, the various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable sub-combination. In addition, although features may be described herein as working in certain combinations and even initially claimed as such, one or more features from the claimed combination may be deleted from the combination in some cases, and the claimed combination may be directed to a sub-combination or a variant of a sub-combination.

[0102] Similarly, although operations are described in a particular order in the accompanying drawings, this should not be understood as requiring these operations to be performed in the particular order or sequence shown, or requiring all operations shown to be performed to obtain desired results. In some cases, multitasking and parallel processing may be advantageous. In addition, the separation of various system modules and components in the embodiments described herein should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can be integrated together in a single product or packaged in multiple products generally.

[0103] Specific embodiments of the subject matter have been described. Other embodiments are within the scope of the following claims. For example, the actions described in the claims can be performed in a different order and still achieve the desired results. As an example, the processes depicted in the accompanying drawings do not necessarily require the specific order shown to achieve the desired results. In some embodiments, multitasking and parallel processing may be advantageous.

Claims

1. A fluid connection device, comprising: a fluid coupling housing defining a first opening to a coupling interior space defined within the fluid coupling housing; as well as The fluid connection module is arranged in the connection internal space, wherein the fluid connection module comprises: a module housing defining an interior space and a longitudinal axis, the module housing comprising: (i) a first end defining a first end opening to the interior space, and (ii) a second end defining a second end opening to the interior space; and A valve within an interior space, wherein the valve is reconfigurable between (i) a closed position in which the valve seals a first end opening from a second end opening and (ii) an open position in which the first end opening is fluidly connected to the second end opening via a fluid flow path, wherein a first end of the module housing abuts a shoulder of a fluid coupling housing that defines a first opening of the fluid coupling housing.

2. The fluid coupling device according to claim 1, further comprising: An elastic sealing member is disposed between the module housing and the fluid connection housing.

3. The fluid coupling device according to claim 1, wherein: The valve includes a valve sleeve and a stem attached to the second end of the module housing, wherein the stem further includes a head located on an end of the stem opposite the base, and wherein the head defines an annular sealing groove configured to receive a resilient seal.

4. The fluid connection module according to claim 3, further comprising: a first elastic seal, the first elastic seal being disposed between the stem and the valve sleeve when the valve sleeve is in a closed position; a second elastic seal, the second elastic seal being disposed between the valve sleeve and the module housing when the valve sleeve is in a closed position; as well as The third elastic sealing member is arranged in the inner space of the module and located between the second elastic sealing member and the first opening.

5. The fluid coupling device according to claim 4, wherein: When the valve sleeve is in the closed position, most of the inner diameter surface of the third elastic seal is separated from the valve sleeve.

6. The fluid coupling device according to claim 4, further comprising: An annular spacer is disposed between the second sealing member and the third elastic sealing member.

7. The fluid coupling device according to claim 3, wherein: The stem includes a base attached to the module housing, and wherein the base defines one or more openings fluidly connecting the second opening to the module interior space.

8. The fluid coupling device according to claim 7, wherein: The one or more openings include four openings, each opening having a shape of a quarter circle.

9. The fluid coupling device according to claim 8, wherein: The stem includes a base attached to the module housing and further includes a spring disposed between the base and the valve sleeve and biasing the valve sleeve toward a closed position.

10. The fluid coupling device according to claim 1, further comprising: A latch mechanism is adjacent to the first opening, the latch mechanism being capable of laterally moving relative to the fluid coupling housing between (i) a latched position and (ii) an unlatched position, wherein in the latched position the center of the opening defined by the latch mechanism is laterally offset relative to the center of the first opening, and in the unlatched position the opening defined by the latch mechanism is concentric with the first opening.

11. A fluid connection module, comprising: a module housing defining an interior space and a longitudinal axis, the module housing comprising: (i) a first end defining a first end opening to the interior space, and (ii) a second end defining a second end opening to the interior space; and a valve within the interior space, wherein the valve is reconfigurable between (i) a closed position, in which the valve seals the first end opening from the second end opening, and (ii) an open position, in which the first end opening is fluidly connected to the second end opening via a fluid flow path, wherein the fluid coupling module is a cartridge configured to be modularly incorporated into various types of fluid couplings or housings of different form factors, and Wherein, when the valve is in an open position, a fluid flow path extends through the valve.

12. The fluid coupling module according to claim 11, wherein: The base defines an opening fluidly connecting the second end opening to the interior space.

13. The fluid coupling module according to claim 12, wherein: The openings include four openings, and each opening is in the shape of a quarter circle.

14. The fluid coupling module according to claim 11, wherein: The valve includes a valve sleeve and a stem attached to a second end of the module housing, wherein the stem further includes a head located on an end of the stem opposite the base, and wherein the head defines an annular sealing groove configured to receive an elastomeric seal.

15. The fluid coupling module according to claim 14, further comprising: a first resilient seal disposed in the annular sealing groove and in contact with the inner diameter of the valve sleeve when the valve sleeve is in the closed position; a second resilient seal disposed between an outer diameter of the valve sleeve and the module housing when the valve sleeve is in a closed position; as well as The third elastic seal is disposed in the inner space of the module and is located between the second elastic seal and the first end opening.

16. The fluid coupling module according to claim 15, further comprising: An annular spacer is disposed between the second elastic seal and the third elastic seal and contacts each of the second elastic seal and the third elastic seal.

17. The fluid coupling module of claim 11, further comprising a spring that biases the valve toward a closed position.

18. A fluid connection device, comprising: a fluid coupling housing defining a first opening to a first coupling interior space defined within the fluid coupling housing and a second opening to the first coupling interior space; as well as The fluid coupling module of claim 11, disposed within the first coupling internal space.

19. An assembly of a fluid handling component, the assembly comprising: a first fluid treatment component; a second fluid treatment component; as well as A fluid treatment component coupling, which connects the first and second fluid treatment components to each other, wherein the fluid treatment component coupling comprises: a peripheral member defining an opening extending along the central axis, the opening being configured to receive an end portion of each of the first and second fluid treatment components; a first series of arcuate stop elements radially spaced from one another and projecting radially inwardly toward the central axis; and A second series of arcuate stop elements are radially spaced apart from one another and project radially inwardly toward the central axis.

20. The assembly of claim 19, wherein: Each arcuate stop element in the first series of arcuate stop elements is radially offset from each arcuate stop element in the second series of arcuate stop elements, and wherein each arcuate stop element in the second series of arcuate stop elements is radially offset from each arcuate stop element in the first series of arcuate stop elements.

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