Flow dividing device and flow collecting device of human body heat exchange equipment

Abstract

The invention discloses a flow dividing device and a flow collecting device of human body heat exchange equipment, the flow dividing device / flow collecting device comprises a flow divider / flow collector and a flexible sleeve, the flexible sleeve sleeves the port of the flow divider / flow collector and a corresponding to-be-connected pipeline hose; the inner diameter of the flow divider / flow collector port is the same as the inner diameter of a corresponding to-be-connected pipeline hose, and the inner diameter of the flexible sleeve is the same as the outer diameter of the pipeline hose; one end of the pipeline hose is arranged in a hole cavity at one end of the flexible sleeve to form close fit; one end of the flexible sleeve is connected with one end of the shunt / current collector in an inserted mode, the shunt / current collector is rigid, barbs are arranged on the outer side of a port of the shunt / current collector, the other end of the flexible sleeve is connected with the corresponding port of the shunt / current collector in an inserted mode, the port barbs are located in the sleeve, and the port barbs and the sleeve form a liquid-tight structure together.

Description

Technical Field

[0001] The invention belongs to the field of human body microenvironment temperature regulation and relates to a flow dividing device and a flow collecting device of human body heat exchange equipment. Background Art

[0002] Workers in many industries need to work in extreme outdoor temperature environments. Working in high or low temperature environments for a long time not only affects work efficiency, but also harms physical health. In order to protect the physical health of workers and improve work efficiency, it is necessary to equip workers working in outdoor extreme temperature environments with human microenvironment temperature regulation equipment. At present, a more effective method is to let workers wear a special kind of clothes that are evenly covered with liquid circulation pipes. The circulation pipe is flexible, and the lining of the clothes is in full contact with the outer surface of the human body. In a high-temperature working environment, the cooled low-temperature liquid is allowed to flow through the circulation pipe, and the low-temperature liquid in the pipe exchanges heat with the outer surface of the human body, which reduces the body surface temperature and improves the comfort of the human body. The liquid flowing out after the heat exchange is cooled, and the cooled liquid is pumped into the pipe of the clothes again through the circulation pump, and the circulation continues. In a low-temperature working environment, the heated high-temperature liquid flows into the pipe. The circulation process of the high-temperature liquid is similar to that of the low-temperature liquid, so it will not be repeated. In other words, this heat exchange clothing can be used for human body heating in a low-temperature environment and human body cooling in a high-temperature environment. The more application scenarios are still used for human body cooling in a high-temperature environment.

[0003] There are many types of hose materials that can be used in heat exchange clothing, including silicone hoses and plastic hoses, and the most commonly used is flexible PVC (polyvinyl chloride) hose. In heat exchange clothing, a single-loop structure with a pipe running from beginning to end is rarely used. This structure has many disadvantages, such as the pipe is too long, the temperature difference between the beginning and the end is large, and it affects the uniformity of the temperature in the heat exchange clothing. A multi-loop structure with multiple tubes in parallel is commonly used. The circulating liquid from the cold / heat source flows into the input end of the heat exchange clothing, and the liquid from the main pipe is distributed to multiple parallel loops connected to it through the diverter. After the circulating liquid completes the heat exchange in the heat exchange clothing, the liquid flowing out of each parallel loop is concentrated to the output main pipe through the collector, and the output main pipe is connected to the cold / heat source.

[0004] No matter which method is used to construct the heat exchange clothing, a liquid diverter / collector is indispensable. The performance of the diverter / collector directly affects the performance of the heat exchange clothing. Usually, the material used for the diverter / collector is a rigid plastic material, such as polyamide (PA for short). An embodiment of the diverter / collector is as follows: Figure 1 and Figure 2 As shown, a central fluid conduction chamber combines the ports of the flow divider / collector together. Figure 2 yes Figure 1The inner hole of each port is connected to the central fluid conduction chamber, and the outer side of the port has a barb. In the prior art, when the port of the flow divider / collector is connected to the pipeline hose, the barb port is inserted into the hole of the pipeline hose. For example, Figure 3 As shown, the fourth flow divider / collector 34 has a main port and four sub-ports, the main port is plugged with the fourth main pipeline hose 44, and the first sub-port is plugged with the second circulation pipeline hose 26. Figure 3 It can be seen that since each port has a certain wall thickness, the inner diameter of each port is smaller than the inner diameter of the pipe hose connected to it. When the liquid flows from the pipe hose through the port, the reduction in the cross-sectional area of ​​the fluid generates resistance, which affects the liquid flow speed and thus affects the performance of the heat exchanger.

[0005] In order to solve the problem that the existing diverter / collector generates resistance to the circulating liquid, a U.S. patent with patent number US9399149B2 discloses an improved diverter / collector. For the circulating pipe hose made of PVC, the material used for the diverter / collector is also flexible PVC material. Each diverter / collector port has two inner diameters, wherein the distal inner diameter is the same as the outer diameter of the pipe hose, and the proximal inner diameter is the same as the inner diameter of the pipe hose, and the pipe hose is inserted into the distal inner diameter cavity. Because the fluid cross-sectional area of ​​each port is the same as the fluid cross-sectional area of ​​the pipe hose docking therewith, no resistance is generated to the liquid flow through the port. The compatibility between the diverter / collector material and the pipe hose material makes it possible to use existing methods to form reliable liquid-tight joints, including solvent bonding, ultrasonic welding, and radio frequency ("RF") welding.

[0006] For the above-mentioned flexible flow divider / collector, in order to make each port have sufficient support force, a lot of reinforcing ribs have to be added to the outside of each port, which brings a disadvantage of increasing the thickness and volume of the flow divider / collector. The second disadvantage is that since the flow divider / collector port and the pipeline hose are fused or welded together, they can no longer be separated non-destructively, which brings troubles to the subsequent production and maintenance of heat exchange clothing. Summary of the invention

[0007] Since the flow resistance of the diverter / collector in the prior art is caused by the small inner diameter of its port, the first thing to do is to adjust the inner diameter of the port of the diverter / collector to be the same as the inner diameter of the pipe hose connected to it; after the inner diameter of the port of the diverter / collector is increased, the outer diameter of the port of the diverter / collector should also be increased; since the pipe hose is weakly elastic, after the outer diameter of the port of the diverter / collector is increased, its port can no longer be inserted into the pipe hose; the second step is to increase the inner diameter of the end of the pipe hose. The solution is to connect a large-diameter flexible sleeve at the end of the pipe hose, and the inner diameter of the flexible sleeve is the same as the outer diameter of the pipe hose. An implementation example Figure 8 shown.

[0008] The flow diverter / collector of the present invention comprises a flow diverter / collector and a flexible sleeve, wherein the flexible sleeve sleeves the port of the flow diverter / collector and the corresponding pipe hose to be connected together, the inner diameter of the port of the flow diverter / collector is the same as the inner diameter of the corresponding pipe hose to be connected, and the inner diameter of the flexible sleeve is the same as the outer diameter of the pipe hose.

[0009] The flexible sleeve has two end surfaces, a first end and a second end.

[0010] On the one hand, one end of the pipe hose is placed in the first end cavity of the flexible sleeve to form a tight fit. The two materials are compatible and a reliable liquid-tight joint can be formed by existing methods, including solvent bonding, ultrasonic welding, and radio frequency ("RF") welding.

[0011] On the other hand, the diverter / collector is rigid, and has barbs on the outside of its port. The second end of the flexible sleeve is plugged into the corresponding port of the diverter / collector, and the port barbs are located inside the flexible sleeve, and the two together form a liquid-tight structure.

[0012] Since the inner diameter of the diverter / collector port is the same as the inner diameter of the corresponding pipe hose to be connected, when the liquid flows from the pipe hose through the corresponding diverter / collector port, there will be no reduction in fluid cross-sectional area to cause resistance, thereby affecting the performance of the heat exchange clothing.

[0013] In one embodiment, the inner diameter of the flexible sleeve is interference fit with the outer diameter of the pipeline hose to be sleeved.

[0014] In one embodiment, the inner diameter of the flow divider / flow collector port is not strictly the same as the inner diameter of the corresponding pipeline hose to be docked.

[0015] The length of the flexible sleeve is determined by the port length of the diverter / collector connected to it, the bridging gap, and the tight connection process between the flexible sleeve and the connected pipe hose; the wall thickness and hardness of the flexible sleeve are determined by the supporting force and softness requirements of the connection of the diverter / collector connected to it.

[0016] The parameters such as the outer diameter, length, number of barbs, barb spacing, etc. of each port of the flow divider / collector are based on the principle of maintaining liquid tightness and not being easy to fall off after being plugged into the flexible sleeve.

[0017] In one embodiment, in order to enhance the liquid tightness of the connection between the flexible sleeve and the barbed port plugged therein and prevent the sleeve from falling off, a cable tie is used to lock the flexible sleeve onto the port.

[0018] In one embodiment, in order to enhance the liquid tightness of the connection between the flexible sleeve and the barbed port plugged therein and prevent the sleeve from falling off, an adhesive is applied to the interface between the outer side of the port and the inner side of the flexible sleeve, and the two are bonded together.

[0019] In an embodiment, only some of the ports in the flow divider / collector are connected to the corresponding pipe hoses to be connected using the socket connection technology of the present invention. As long as one port uses the socket connection technology of the present invention, it falls within the protection scope of the present invention.

[0020] The first advantage of the present invention is that the port of the diverter / collector is connected to the corresponding pipe hose to be connected through a flexible sleeve, the inner diameter of the port is the same as the inner diameter of the pipe hose, and the access of the port will not reduce the fluid cross-sectional area and bring resistance to the liquid flow.

[0021] The second advantage of the present invention is that the flexible sleeve is plugged into the barbed port, which greatly facilitates the production and maintenance of the heat exchange clothing, and the flexible sleeve can be plugged in and out at any time as needed.

[0022] The third advantage of the present invention is that compared with the rigid current divider / collector in the prior art, the current divider / collector of the present invention only has the port size adjusted, and the other dimensions and volume are not significantly increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a current divider / collector.

[0024] Figure 2 for Figure 1 Cross-sectional view of .

[0025] Figure 3 The figure is a schematic diagram of an embodiment of the connection between a flow divider / collector and a hose in the prior art.

[0026] Figure 4 A front view of an embodiment of a heat exchange vest.

[0027] Figure 5 A rear view of an embodiment of a heat exchange vest.

[0028] Figure 6 This is a three-dimensional diagram of the second type of current divider / collector.

[0029] Figure 7 This is a three-dimensional diagram of the third type of current divider / collector.

[0030] Figure 8 It is a schematic diagram of the connection between the pipeline hose and the first flexible sleeve of the present invention.

[0031] Fig. 9 It is a schematic diagram of the sleeve connection between the pipeline hose and the second flexible sleeve of the present invention.

[0032] Fig.10 This is a schematic diagram of the connection between the pipeline hose and the diverter / collector port through a flexible sleeve of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are as follows: Vest body 1, left front area liquid circulation pipe hose loop 21, right front area liquid circulation pipe hose loop 22, left rear area liquid circulation pipe hose loop 23, right rear area liquid circulation pipe hose loop 24, first circulation pipe hose 25, second circulation pipe hose 26, first diverter / collector 31, second diverter / collector 32, third diverter / collector 33, fourth diverter / collector 34, first input / output main pipe hose 41, second input / output main pipe hose 42, third main pipe hose 43, fourth main pipe hose 44, first flexible sleeve 51, second flexible sleeve 52, first sub-port 61, second sub-port 62, third sub-port 63, fourth sub-port 64, main port 7. DETAILED DESCRIPTION

[0034] As used herein, "body heat exchange device" or "heat exchange garment" refers to a wearable article of clothing, including vests, jackets, sleeves, coats, shirts, suits, pants, overalls, hoods, hats, boots, gloves, and any other type of full or partial body covering, including blankets or tarpaulins, which can be configured to support tubes in close contact with the body to carry circulating fluids, thereby controlling body temperature by cooling or heating the circulating fluids.

[0035] As used herein, the terms "first", "second", "third", and "fourth" are used to describe various parts, but these parts are not limited by these terms. These terms are only used to distinguish a part of the same type from the remaining parts and cannot be understood as indicating or implying relative importance.

[0036] Figure 4 and Figure 5 Schematic diagram of one embodiment of a heat exchange garment. Figure 4 This is the front view. Figure 5 This is a back view showing a heat exchange vest. Heat exchange clothing is generally composed of an inner lining fabric, a middle liquid circulation pipe hose, and an outer fabric. In order to see through the structure of the internal liquid circulation pipe, we hide the outer fabric.

[0037] The heat exchange vest includes a vest body 1, a four-way liquid circulation hose loop, two diverters / collectors, and two circulating liquid input / output main pipeline hoses connected to a cooling / heating source. The four-way liquid circulation hose loop includes a left front area liquid circulation pipeline hose loop 21, a right front area liquid circulation pipeline hose loop 22, a left rear area liquid circulation pipeline hose loop 23, and a right rear area liquid circulation pipeline hose loop 24; the two diverters / collectors include a first diverter / collector 31 and a second diverter / collector 32; the two input / output main pipeline hoses include a first input / output main pipeline hose 41 and a second input / output main pipeline hose 42.

[0038] In multi-circuit heat exchange clothing, flow dividers and flow collectors are essential accessories. When the first input / output main pipeline hose 41 is used as input and the second input / output main pipeline hose 42 is used as output, the first flow divider / flow collector 31 becomes a flow divider and the second flow divider / flow collector 32 becomes a flow collector; conversely, when the second input / output main pipeline hose 42 is used as input and the first input / output main pipeline hose 41 is used as output, the second flow divider / flow collector 32 becomes a flow divider and the first flow divider / flow collector 31 becomes a flow collector. The same accessory can be used as both a flow divider and a flow collector, and the role it plays is determined by the direction of the liquid flow.

[0039] There are many types of current dividers / collectors. Figure 1 In addition to the following, common current dividers / collectors are also as follows Figure 6 and Figure 7 As shown, some flow dividers / collectors are designed with double rows of ports, and some ports are even at a certain angle to the central fluid conduction chamber, and each port has barbs on the outside. In an application, the choice of flow divider / collector depends on the direction and position of the end of the pipe hose to be connected, and the smoothness of the connection and the liquid tightness after connection with the pipe hose are the principles.

[0040] like Figure 2 As shown, the flow divider / collector is composed of a main port and four sub-ports; for the main port, the inner diameter of the main port is d21, the corresponding diameter at the barb valley of the main port is d22, and the corresponding diameter at the barb peak of the main port is d23; for the sub-port, the inner diameter of the sub-port is d11, the corresponding diameter at the barb valley of the sub-port is d12, and the corresponding diameter at the barb peak of the sub-port is d13. The present invention requires that the inner diameter of the flow divider / collector port is the same as the inner diameter of the pipeline hose connected thereto. When the inner diameter d21 of the main port is a fixed value, the diameter d22 at the barb valley of the main port determines the minimum wall thickness of the main port, thereby determining the mechanical strength of the main port; the diameter d23 at the barb peak of the main port determines the maximum expansion diameter of the hose connected thereto, thereby determining the liquid tightness of the connection between the main port and the connected hose. Similarly, when the inner diameter d11 of the sub-port is a constant, the diameter d12 at the barb valley of the sub-port determines the minimum wall thickness of the sub-port, thereby determining the mechanical strength of the sub-port; the diameter d13 at the barb peak of the sub-port determines the maximum expansion diameter of the hose connected to it, thereby determining the liquid tightness of the connection between the sub-port and the connected hose.

[0041] The present invention is further described in detail below with reference to specific embodiments.

[0042] The problem to be solved by the present invention is that when the liquid flows through the port of the flow divider / collector, no additional resistance will be generated to the liquid flow due to the reduction of the fluid cross-sectional area at the port, thereby affecting the flow rate and thus affecting the performance of the heat exchanger.

[0043] like Figure 8 As shown, the length of the first flexible sleeve 51 is L1, and the first flexible sleeve 51 and the first circulation pipe hose 25 The length of the intersection surface is L11, the inner diameter of the first flexible sleeve 51 is the same as the outer diameter of the first circulation pipeline hose 25, and the two are tightly matched; their materials are compatible. In one embodiment, the first flexible sleeve 51 and the first circulation pipeline hose 25 are both made of PVC material, so that a reliable liquid-tight joint can be formed by known methods, including solvent bonding, ultrasonic welding, and radio frequency ("RF") welding.

[0044] like Fig. 9 As shown, the length of the second flexible sleeve 52 is L2, the length of the interface between the second flexible sleeve 52 and the third main pipeline hose 43 is L21, the inner diameter of the second flexible sleeve 52 is the same as the outer diameter of the third main pipeline hose 43, and the two are tightly matched; their materials are compatible. In one embodiment, the second flexible sleeve 52 and the third main pipeline hose 43 are both made of PVC material, so that a reliable liquid-tight joint can be formed by known methods, including solvent bonding, ultrasonic welding, and radio frequency ("RF") welding.

[0045] like Fig.10 As shown, the third flow divider / collector 33 has a main port 7 and four sub-ports; the four sub-ports include: a first sub-port 61, a second sub-port 62, a third sub-port 63 and a fourth sub-port 64. The functions and sizes of the four sub-ports are exactly the same. Here, only the first sub-port 61 is used as an example to describe the connection process with the first circulation pipeline hose 25. Figure 8 The first flexible sleeve 51 on which the first circulation pipeline hose 25 is sleeved is plugged into the first sub-port 61, and the barbs on the outside of the first sub-port 61 are located inside the tube of the first flexible sleeve 51, and the two form a liquid-tight structure; the inner diameter of the first circulation pipeline hose 25 is the same as the inner diameter of the first sub-port 61, and when the liquid flows from the first circulation pipeline hose 25 through the first sub-port 61, there will be no additional resistance caused by the reduction of the fluid cross-sectional area, which will affect the flow rate. Similarly, Fig. 9 The second flexible sleeve 52 connected to the third main pipeline hose 43 is inserted into the main port 7, and the barbs on the outside of the main port 7 are located in the tube of the second flexible sleeve 52, and the two form a liquid-tight structure; the inner diameter of the third main pipeline hose 43 is the same as the inner diameter of the main port 7. When the liquid flows from the third main pipeline hose 43 through the main port 7, there will be no reduction in the fluid cross-sectional area to bring additional resistance, thereby affecting the flow rate.

[0046] As mentioned above, in order for the connection of the flow divider / collector to not generate additional resistance to the liquid circulation system of the heat exchange garment, the inner diameter of each port in the flow divider / collector must be the same as the inner diameter of the pipe hose connected thereto.

[0047] The number of sub-ports of the flow divider / collector is determined by the number of loops of the circulation hose. The parameters such as the outer diameter, length, number of barbs, barb spacing, etc. of each port are related to the inner diameter, wall thickness and hardness of the flexible sleeve plugged therein. The principle is that the connection between the flexible sleeve and the port can maintain liquid tightness and is not easy to fall off.

[0048] like Fig.10 As shown, the length of the first flexible sleeve 51 is L1, the length of the interface between the first flexible sleeve 51 and the first circulation pipeline hose 25 is L11, the distance between the end face of the first circulation pipeline hose 25 and the end face of the first sub-port 61 is L12, and the length of the interface between the first sub-port 61 and the first flexible sleeve 51 is L13. The length of the second flexible sleeve 52 is L2, the length of the interface between the second flexible sleeve 52 and the third main pipeline hose 43 is L21, the distance between the end face of the third main pipeline hose 43 and the end face of the main port 7 is L22, and the length of the interface between the main port 7 and the second flexible sleeve 52 is L23.

[0049] Depend on Fig.10 It can be seen that the length L1 of the first flexible sleeve 51 is determined by the three length values ​​of L11, L12 and L13.

[0050] The minimum length of L11 is related to the bonding process used, which, as mentioned above, includes solvent bonding, ultrasonic welding, radio frequency ("RF") welding, etc.

[0051] The minimum value of L12 may be zero. When it is not zero, the first flexible sleeve 51 may be used to make a bridge, and L12 is the gap value of the bridge.

[0052] The maximum value of L13 is the length of the first sub-port 61, which must include at least one port barb.

[0053] Similarly, the length L2 of the second flexible sleeve 52 is determined by the three length values ​​L21, L22 and L23. The influencing factors of the values ​​L21, L22 and L23 are the same as those of the values ​​L11, L12 and L13, and will not be repeated.

[0054] That is to say, the length of the flexible sleeve is determined by the port length of the flow divider / collector connected thereto, the bridging gap, and the close connection process between the flexible sleeve and the sleeved pipe hose.

[0055] In one embodiment, the main steps of implementing the present invention are:

[0056] The first step is to select or design a third flow divider / collector 33 whose main port inner diameter is the same as the inner diameter of the third main pipeline hose 43 and whose sub-port inner diameter is the same as the inner diameter of the first circulation pipeline hose 25 .

[0057] The second step is to select a first flexible sleeve 51 with an inner diameter the same as the outer diameter of the first circulation pipeline hose 25, and select a second flexible sleeve 52 with an inner diameter the same as the outer diameter of the third main pipeline hose 43. The materials of the two flexible sleeves are compatible with the materials of the connected hoses.

[0058] The third step is to connect one end of the first flexible sleeve 51 to the end of the first circulation pipe hose 25. Figure 8 The second flexible sleeve 52 is sleeved together with one end of the third main pipe hose 43, as shown; Fig. 9 As shown; a liquid-tight joint is formed by existing techniques, including solvent bonding, ultrasonic welding, radio frequency ("RF") welding, etc.

[0059] The fourth step is to plug the first flexible sleeve 51 which is closely connected to the first circulation pipeline hose 25 into the first sub-port 61 of the third flow divider / collector 33; and plug the second flexible sleeve 52 which is closely connected to the third main pipeline hose 43 into the main port 7 of the third flow divider / collector 33. Fig.10 shown.

[0060] In the above embodiment, only the first sub-port is described, and the operation steps and processes of the other sub-ports are exactly the same as those of the first sub-port.

[0061] In a second aspect, in an implementation example, the structural parameter optimization matching process of the current divider / current collector is as follows:

[0062] The first step is to determine the number of loops of the liquid circulation pipeline required and the inner and outer diameters of the liquid circulation pipeline hose according to the heat exchange capacity requirements of the heat exchange clothing.

[0063] The second step is to determine the inner and outer diameters of the main pipeline hose connected to the cold source / heat source based on the total liquid flow requirements.

[0064] In the third step, the number of ports, the inner diameter of the main port and the inner diameter of the sub-port required for the current divider / collector can be determined based on the first and second steps.

[0065] The fourth step is to determine the structure, shape, size and position and direction of each port of the diverter / collector according to the end position and direction of each circulation pipe loop in the heat exchange clothing and the end position and direction of the main pipe, so that the diverter / collector can be smoothly connected to each pipe hose.

[0066] The fifth step is to select appropriate materials and wall thicknesses based on the parameters determined in the first four steps, and then design or select a flow divider / collector that meets these parameter requirements. The outer diameter, length, number of barbs, barb spacing and other parameters of each port are based on the principle of maintaining liquid tightness and not being easy to fall off after being plugged into the flexible sleeve.

[0067] Thirdly, Fig.10 As shown, there are two types of flexible sleeves, a first flexible sleeve 51 and a second flexible sleeve 52 .

[0068] In an implementation example, the process of optimizing and matching the parameters of the two flexible sleeves is as follows:

[0069] The first step is to determine the inner diameter of the first flexible sleeve 51 according to the outer diameter of the first circulation pipe hose 25, and the inner diameter of the first flexible sleeve 51 is the same as the outer diameter of the first circulation pipe hose 25; determine the inner diameter of the second flexible sleeve 52 according to the outer diameter of the third main pipe hose 43, and the inner diameter of the second flexible sleeve 52 is the same as the outer diameter of the third main pipe hose 43.

[0070] The second step is to determine the length L1 of the first flexible sleeve 51 and the length L2 of the second flexible sleeve 52; the length L1 is determined by the aforementioned values ​​of L11, L12 and L13, and the length L2 is determined by the aforementioned values ​​of L21, L22 and L23.

[0071] In the third step, the wall thickness and hardness of the flexible sleeve are determined by the flexibility and supporting force requirements of the connection.

[0072] As mentioned above, the inner diameter of the diverter / collector port is required to be the same as the inner diameter of the corresponding connected pipe hose. There are errors in engineering. As long as the inner diameters of the two are close, they are connected together by a flexible sleeve and fall within the protection scope of the present invention. Even if the additional resistance to the liquid flow caused by the connecting port is not completely eliminated, this resistance is minimized.

[0073] In one embodiment, the inner diameter of the flexible sleeve is interference fit with the outer diameter of the pipe hose to be sleeved, and the two materials are compatible, and a reliable liquid-tight joint is formed by existing methods, including solvent bonding, ultrasonic welding, and radio frequency ("RF") welding.

[0074] In one embodiment, only some of the ports in the flow divider / collector are connected to the corresponding pipe hoses to be connected using the socket connection technology of the present invention, and the connection of the remaining ports uses the existing technology; for example, the main pipe hose has a relatively large diameter, and the connection with the main port uses the existing direct plug-in technology, while the circulation pipe hose and the sub-port use the socket connection technology of the present invention. It cannot be deviated from the protection scope of the present invention just because only some of the ports use the technology of the present invention. As long as one port uses the socket connection technology of the present invention, it belongs to the protection scope of the present invention.

[0075] Furthermore, the difference in the port outer diameter, length, number of port barbs, barb spacing and other parameters of the flow divider / collector cannot deviate from the protection scope of the present invention. The essence of the present invention is to sleeve the port of the flow divider / collector with the corresponding pipe hose to be connected through a flexible sleeve, so that the fluid cross-sectional area at the port is not less than the fluid cross-sectional area of ​​the corresponding pipe hose to be connected, thereby avoiding additional resistance to the liquid flow.

[0076] In one embodiment, in order to enhance the fluid tightness of the connection between the flexible sleeve and the barbed port plugged therein and prevent the sleeve from falling off, the flexible sleeve is locked on the port with a cable tie, which still falls within the protection scope of the present invention.

[0077] In one embodiment, in order to enhance the liquid tightness of the connection between the flexible sleeve and the barbed port connected thereto and prevent the sleeve from falling off, an adhesive is applied to the interface between the outer side of the port and the inner side of the flexible sleeve, and the two are bonded together, which also falls within the protection scope of the present invention.

[0078] The current dividers / collectors described in the embodiments used in this article all have one main port and four sub-ports. This is just for the convenience of describing the problem and is not a limitation of the present invention. The present invention is applicable to current dividers / collectors with any number of ports.

[0079] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A flow dividing device and flow collecting device for human body heat exchange equipment, characterized in that: The flow dividing device and the flow collecting device comprise a flow divider, a flow collector and a flexible sleeve, wherein the flexible sleeve sleeves the ports of the flow divider and the flow collector and the corresponding pipe hose to be connected together, the inner diameter of the ports of the flow divider and the flow collector is the same as the inner diameter of the corresponding pipe hose to be connected, and the inner diameter of the flexible sleeve is the same as the outer diameter of the pipe hose; one end of the pipe hose is placed in the cavity at one end of the flexible sleeve, and the materials of the two are compatible to form a tight fit; the flow divider and the flow collector are rigid, and the ports of the flow divider and the flow collector have barbs on the outside, and the other end of the flexible sleeve is plugged into the ports corresponding to the flow divider and the flow collector, and the barbs of the ports are located in the flexible sleeve, and the two together form a liquid-tight structure; The human body heat exchange device comprises a heat exchange garment that at least partially covers the body of the wearer, and the heat exchange garment comprises a multi-way parallel circulation pipeline hose loop and a flow divider and a flow collector installed in the inner lining of the garment.

2. The flow dividing device and the flow collecting device according to claim 1, characterized in that: The connection between the flexible sleeve and the pipeline hose forms a reliable liquid-tight joint by using existing methods, and these methods include solvent bonding, ultrasonic welding, and radio frequency welding.

3. The flow dividing device and the flow collecting device according to claim 1, characterized in that: The length of the flexible sleeve is determined by the port length of the flow divider and the flow collector connected thereto, the bridging gap, and the close connection process between the flexible sleeve and the pipeline hose.

4. The flow dividing device and the flow collecting device according to claim 1, characterized in that: The wall thickness and hardness of the flexible sleeve are determined by the support force and flexibility requirements of the connection between the diverter and the collector connected thereto.

5. The flow dividing device and the flow collecting device according to claim 1, characterized in that: The inner diameter of the flexible sleeve is interference fit with the outer diameter of the pipeline hose.

6. The flow dividing device and the flow collecting device according to claim 1, characterized in that: The inner diameters of the ports of the flow divider and the flow collector are not strictly the same as the inner diameters of the corresponding pipeline hoses to be connected.

7. The flow dividing device and the flow collecting device according to claim 1, characterized in that: The outer diameter, length, number of barbs and barb spacing of each port of the flow divider and the current collector are based on the principle of maintaining liquid tightness and not being easy to fall off after being plugged into the flexible sleeve.

8. The flow dividing device and the flow collecting device according to claim 1, characterized in that: Only some of the ports in the flow divider and the flow collector are connected to the corresponding pipe hoses to be connected using flexible sleeves.

9. The flow dividing device and the flow collecting device according to claim 1, characterized in that: In order to enhance the liquid tightness of the connection between the flexible sleeve and the barbed port plugged therein and prevent the sleeve from falling off, the flexible sleeve is locked on the port with a cable tie.

10. The flow dividing device and the flow collecting device according to claim 1, characterized in that: In order to enhance the liquid tightness of the connection between the flexible sleeve and the barbed port plugged therein and prevent the sleeve from falling off, an adhesive is applied to the interface between the outer side of the port and the inner side of the flexible sleeve, and the two are bonded together.

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