Fluid transport piping

Abstract

The present invention discloses a fluid transport pipe that is excellent in ease of assembly, cooling performance, condensation prevention performance, etc. The fluid transport pipe according to one aspect of the present invention includes a main pipe that extends long in one direction and has a main flow path formed therein in the longitudinal direction and a branch hole formed in the middle of the main flow path, and a branch pipe that has branch flow paths formed therein and is configured to be detachable from the portion of the main pipe where the branch hole is formed.

Description

[Technical Field]

[0001] This application claims priority based on Korean Patent Application No. 10-2022-0106965 filed on August 25, 2022, and all contents disclosed in the specification and drawings of the application are incorporated into this application.

[0002] The present invention relates to a pipe for fluid transportation, and more specifically, to a cooling fluid pipe applicable to a water-cooled cooling system of an Energy Storage System (ESS), a cooling device including the pipe, an energy storage system, and the like. [Background Art]

[0003] In recent years, along with issues such as power shortages and environmentally friendly energy being brought up, ESS for storing produced electric power has attracted increasing attention. Typically, when such an ESS is used, it is easy to construct a power management system like a Smart Grid System, so the supply and demand of electric power can be easily adjusted in specific regions, cities, and the like. Further, as the commercialization of electric vehicles is in full swing, such an ESS can also be applied to electric charging stations for charging electric vehicles.

[0004] Furthermore, ESS has been popularized for residential use, and its household usage is gradually increasing. For example, a residential ESS can store electric power generated through solar power installed outside a residence or electric power supplied from a commercial power source, and supply the electric power required by the household.

[0005] In such ESSs, multiple battery modules may be housed in a rack frame. Each battery module may contain multiple rechargeable batteries. While ESSs contain many rechargeable batteries, each battery can generate heat during the charging and discharging process. Furthermore, multiple battery modules may be densely packed in a confined space. In addition, ESSs may be exposed to seasonally or geographically high-temperature environments, such as during the summer or in deserts.

[0006] If cooling is insufficient in these conditions, thermal events can occur in specific battery cells or modules, potentially leading to malfunctions, damage, and even serious accidents such as fire or explosion. Furthermore, if thermal runaway propagates between densely packed battery cells and modules in a confined space, it could lead to a large-scale fire. Therefore, ESS (Energy Storage Systems) must be properly cooled depending on the situation.

[0007] The most common cooling methods for ESS (Electrical System Assistance) are air cooling and water cooling. Air cooling has limitations in cooling efficiency and is vulnerable to fire. On the other hand, water cooling, which utilizes cooling water, has the advantage of relatively superior cooling performance and the ability to proactively respond to fires, and is therefore widely used in the field of ESS today. However, water cooling systems also have various problems that need to be solved.

[0008] In particular, in the case of water cooling systems, a path for the flow of a fluid such as water must be secured in the form of piping. Furthermore, in systems like ESS, many pipes may be provided in various configurations. In this case, the assembly process of connecting pipes to each other or to other connecting pipes, or the work of attaching other components when the pipes are in place, is not easy. Also, the fluid must flow stably between many pipes, but if the pipes are long or have complex paths, the flow rate or velocity may be insufficient, leading to unstable fluid flow. Therefore, there is a risk that the cooling performance of the cooling system may not be fully realized. In addition, condensation may occur on the outside of the pipes through which the fluid flows. In particular, if condensation occurs, it can cause problems such as short circuits and fires. [Overview of the project] [Problems that the invention aims to solve]

[0009] The present invention was devised to solve the above-mentioned problems, and aims to provide fluid transport piping, a cooling device including said piping, and an energy storage system, which are excellent in terms of ease of assembly, cooling performance, and condensation prevention performance.

[0010] The technical problems that this invention aims to solve are not limited to those described above, and other problems will be clearly understood by those skilled in the art from the following description of the invention. [Means for solving the problem]

[0011] To achieve the above objective, a fluid transport pipe according to one aspect of the present invention includes a main pipe having a long, unidirectional shape, with a main flow path formed internally in the longitudinal direction and a branch hole formed in the middle of the main flow path, and a branch pipe having a branch flow path formed internally and configured to be detachably attached to the portion of the main pipe where the branch hole is formed.

[0012] Here, the branch pipe may be configured to be connectable to the main pipe such that the direction of extension of the branch channel is inclined at an acute angle with respect to the direction of extension of the main channel.

[0013] Furthermore, the main piping may be provided with multiple conduits inside, and the branch piping may be provided with multiple conduits, with at least one branch detachably attached to each of the multiple conduits.

[0014] Furthermore, the multiple branch pipes can be configured to be connected to each of the multiple conduits while being tilted in the same direction.

[0015] Furthermore, the main piping may further comprise a main housing having a hollow structure, configured to house a plurality of the conduits together within the hollow structure.

[0016] Furthermore, the multiple conduits may be configured to be at least partially separated from the inner surface of the main housing.

[0017] Furthermore, the multiple conduits may be arranged so as to be separated from each other by a predetermined distance within the hollow interior of the main housing.

[0018] Furthermore, the main piping may be configured such that both ends in the longitudinal direction of the main flow path are open.

[0019] Furthermore, the main piping may be configured such that fastening holes are formed around the branch holes, and the branch piping can be bolted to the fastening holes of the main piping.

[0020] Furthermore, the branch piping may include a branch unit, the branch unit may include a mounting part that is placed on the surface of the main piping, and a conduit part that has a hollow structure as the branch flow path, with one end connected to the mounting part and extending from the mounting part at a predetermined angle.

[0021] Furthermore, the main piping may have mounting grooves formed therein on which the aforementioned mounting parts can be placed.

[0022] Further, the branch pipe may further include a cap unit made of a material having lower thermal conductivity than the branch unit, the cap unit being configured to cover at least a part of the branch unit from the outside.

[0023] Further, the cap unit may include a mounting cap configured to cover the mounting member from the outside, and a conduit cap configured to cover the conduit member from the outside.

[0024] Further, the cap unit may be configured to be at least partially separated from the branch unit by a predetermined distance.

[0025] Further, a cooling device according to another aspect of the present invention includes the fluid transport pipe according to one aspect of the present invention.

[0026] Further, an energy storage system according to still another aspect of the present invention includes the fluid transport pipe according to one aspect of the present invention. Effects of the Invention

[0027] According to one aspect of the present invention, a water cooling system excellent in assemblability or processability can be provided.

[0028] In particular, according to one aspect of the present invention, in a fluid transport pipe in which a branch pipe is inclined and coupled to form an acute angle from a main pipe, the step of pushing another pipe, for example, a connection pipe connected to a battery module, into the branch pipe can be easily achieved.

[0029] Further, according to one aspect of the present invention, the step of attaching a heat insulating material or the like to the outside of the main pipe is facilitated. In this case, by expanding the coverage area of the heat insulating material and minimizing exposure of the main pipe to the outside of the heat insulating material, it is possible to improve the heat insulating effect provided by the heat insulating material, particularly the effect of suppressing dew condensation.

[0030] Furthermore, according to one aspect of the present invention, a water cooling system with excellent cooling performance can be provided. In particular, in one aspect of the present invention, the flow rate or flow velocity between the main piping and the separation piping is improved, ensuring excellent cooling performance. Moreover, according to one aspect of the present invention, more battery modules can be cooled compared to conventional technology, even with the same cooling fluid supply unit, for example, the same chiller.

[0031] Furthermore, according to one aspect of the present invention, the energy density of the cooling device and the energy storage system can be improved. In particular, according to one aspect of the present invention, the number of cooling fluid supply units and the space occupied by fluid transport piping can be reduced, and the number of battery modules can be increased.

[0032] Furthermore, according to one aspect of the present invention, reducing the size of the branch pipes protruding from the main pipe makes it easier to assemble and replace other components such as battery modules.

[0033] Furthermore, according to one aspect of the present invention, a water cooling system capable of effectively preventing condensation can be provided. Therefore, according to one aspect of the present invention, it is possible to prevent problems such as short circuits and fires caused by condensation in ESSs to which the cooling system is applied. In addition, according to one aspect of the present invention, since the ESS can be cooled using cooling water, excellent cooling performance can be ensured, while also enabling proactive measures in the event of a fire.

[0034] Furthermore, a variety of other additional effects can be achieved through many embodiments of the present invention. These various effects of the present invention will be described in detail in each embodiment, although effects that are easily understood by those skilled in the art will not be described.

[0035] The following drawings accompanying this specification illustrate preferred embodiments of the invention and, together with the detailed description of the invention, serve to further illustrate the technical idea of ​​the invention; therefore, the invention should not be construed as being limited solely to what is shown in the drawings. [Brief explanation of the drawing]

[0036] [Figure 1] This is a schematic perspective view showing the configuration of a fluid transport piping system according to one embodiment of the present invention. [Figure 2] This is an exploded perspective view of a partial configuration of a fluid transport piping system according to one embodiment of the present invention. [Figure 3] This is a cross-sectional view showing the configuration of a fluid transport piping system according to one embodiment of the present invention. [Figure 4] This diagram schematically shows the flow of cooling fluid in a conduit in a fluid transport piping system according to one embodiment of the present invention. [Figure 5] This diagram schematically shows the flow of cooling fluid in other conduits in a fluid transport piping system according to one embodiment of the present invention. [Figure 6] This diagram schematically shows a fluid transport piping according to one embodiment of the present invention, viewed from one side. [Figure 7] This is a schematic cross-sectional view showing an example of a partial configuration of a fluid transport piping system according to one embodiment of the present invention. [Figure 8] This is a schematic cross-sectional view showing a partial configuration of a fluid transport piping according to another embodiment of the present invention. [Figure 9] This is an exploded perspective view schematically showing a configuration in which two fluid transport pipes are connected according to one embodiment of the present invention. [Figure 10] Figure 9 is a combined perspective view. [Figure 11] This is a cross-sectional view showing the configuration of section A3 in Figure 10. [Figure 12] This is an enlarged view of section A6 in Figure 11. [Figure 13] This is an enlarged view of section A7 in Figure 11. [Figure 14]This is a schematic cross-sectional view showing a partial configuration of a fluid transport piping system according to yet another embodiment of the present invention. [Figure 15] This is an exploded perspective view schematically showing a partial configuration of a fluid transport piping system according to yet another embodiment of the present invention. [Figure 16] This is a schematic perspective view showing the configuration of a fluid transport piping system according to yet another embodiment of the present invention. [Figure 17] Figure 16 is an exploded perspective view of the embodiment. [Figure 18] Figure 16 is a schematic diagram showing a configuration in which two fluid transport pipes are connected. [Figure 19] This diagram schematically shows a partial configuration of a fluid transport piping system according to one embodiment of the present invention. [Figure 20] This figure schematically shows a partial configuration of a cooling device according to another embodiment of the present invention. [Figure 21] This figure schematically shows the configuration of an energy storage system according to yet another embodiment of the present invention. [Modes for carrying out the invention]

[0037] Preferred embodiments of the present invention will now be described in detail with reference to the attached drawings. Prior to this, terms and words used herein and in the claims shall not be interpreted in their usual and dictionary sense, but rather in a sense and concept that corresponds to the technical idea of ​​the present invention, in accordance with the principle that the inventor himself may appropriately define the concept of terms in order to best describe the invention.

[0038] Therefore, the embodiments and configurations shown in the drawings described herein represent only one of the most preferred embodiments of the present invention and do not represent the entire technical concept of the invention. It should be understood that there are various equivalents and modifications that can be substituted for these at the time of filing this application.

[0039] Figure 1 is a schematic perspective view showing the configuration of a fluid transport piping 100 according to one embodiment of the present invention. Figure 2 is an exploded perspective view of a part of the configuration of the fluid transport piping 100 according to one embodiment of the present invention. And Figure 3 is a cross-sectional view showing the configuration of the fluid transport piping 100 according to one embodiment of the present invention. For example, Figure 3 is a cross-sectional view along the line A1-A1' in Figure 1.

[0040] Referring to Figures 1 to 3, a fluid transport piping 100 according to one aspect of the present invention includes a main pipe 110 and a branch pipe 120.

[0041] The main pipe 110 may be configured to extend long in one direction. For example, as shown in Figures 1 to 3, the main pipe 110 may be configured to extend long in the Z-axis direction (vertical direction). The main pipe 110 may have a main flow path formed inside, as shown by the part H in Figure 3. In this case, the main flow path H may be configured to extend long vertically along the longitudinal direction of the main pipe 110. A fluid, particularly cooling water such as water, may flow through such a main flow path H.

[0042] Branch holes may be formed in the main pipe 110, as shown by the R in Figures 2 and 3. The branch holes R may be formed in the middle of the main flow path H. For example, referring to Figures 2 and 3, the main flow path H may be extended long in the vertical direction, and the branch holes R may be formed in the central part in the vertical direction. Here, the middle or central part does not mean only the point exactly halfway between the two ends of the main flow path H, but broadly refers to the part located between them regardless of the distance from the two ends.

[0043] The branch hole R may be configured to be exposed to the outside of the main pipe 110 in the central portion of the main flow path H. That is, referring to the configuration in Figure 2, when the branch pipe 120 is not connected to the main pipe 110, the branch hole R may be exposed to the outside of the main pipe 110. Thus, although the main flow path H is located inside the main pipe 110 in a hollow form, it can be said that it is exposed to the outside of the main pipe 110 in the portion where the branch hole R is formed.

[0044] The branch pipe 120 may have a branch channel formed inside, as indicated by N in Figures 2 and 3. The branch pipe 120 may be formed in a form that extends in one direction, and the branch channel N may be formed to be long along the direction of extension of the branch pipe 120.

[0045] The branch pipe 120 can be connected to the portion of the main pipe 110 where the branch hole R is formed. In particular, the branch pipe 120 can be configured to be detachable from the main pipe 110. That is, the branch pipe 120 can be attached to the main pipe 110 or separated from the main pipe 110. Furthermore, the branch pipe 120 may not be configured integrally with the main pipe 110, but can be assembled to the main pipe 110 after the main pipe 110 has been installed in a cooling device or energy storage system, etc.

[0046] According to this embodiment of the present invention, the branch pipe 120 can be appropriately attached to and detached from the main pipe 110 depending on the situation, thereby improving the ease of assembly and processability of the cooling device and energy storage system. In particular, connecting pipes can be connected to the branch pipe 120 by methods such as pushing them in to replace battery modules and cooling water. In this case, the connecting pipe can be pushed into the branch pipe 120 when the branch pipe 120 is not connected to the main pipe 110, so the pushing process can be carried out more easily regardless of the angle between the branch pipe 120 and the main pipe 110. In addition, in this case, it is possible to prevent damage or breakage of the branch pipe 120 or the main pipe 110 during the pushing process.

[0047] The branch pipe 120 may be configured to be inclined at a predetermined angle with respect to the main pipe 110. In particular, the branch pipe 120 may be configured to be inclined at an acute angle with respect to the main pipe 110. That is, the branch pipe 120 may be configured to be connectable to the main pipe 110 such that the extending direction of the branch channel N is inclined at an acute angle with respect to the extending direction of the main channel H. More specifically, referring to Figure 3, the angle between the extending direction of the branch channel N and the extending direction of the main channel H may be represented by θ. In this case, θ may be less than 90°. In particular, the branch pipe 120 may be connected to the main pipe 110 at an angle of approximately 45°.

[0048] According to this embodiment of the present invention, the flow rate or velocity of the cooling fluid can be increased by the Venturi effect, in which a large airflow draws in surrounding fine airflows, thereby increasing the flow velocity or flow rate. In this case, air bubbles can be more easily discharged from inside the branch pipe 120 and the main pipe 110. Therefore, the cooling performance of the water cooling system can be further improved.

[0049] Furthermore, according to such embodiments, the cooling area is further expanded for the same performance of chillers supplying the cooling fluid. Therefore, it is possible to reduce the size or number of chillers, or to increase the number of objects that the chillers are responsible for cooling, such as battery modules.

[0050] Furthermore, according to this embodiment, the inclined structure reduces the degree to which the branch pipe 120 protrudes from the main pipe 110. Therefore, assembly of the cooling device and energy storage system becomes easier. For example, when separating or assembling a battery module or the like from the cooling device, interference caused by the branch pipe 120 can be reduced. Also, according to this embodiment, by reducing the volume of the cooling device, the size of the object to be cooled, such as a battery module, can be increased. Therefore, it is advantageous to reduce the volume of the cooling device and improve the energy density in energy storage systems and the like.

[0051] Furthermore, in the case of a fluid transport piping 100 according to one aspect of the present invention, connecting pipes and the like can be connected to the branch pipe 120 before the branch pipe 120 is attached to the main pipe 110. Therefore, a configuration in which the branch pipe 120 is assembled at an acute angle with the main pipe 110, as in this embodiment, can be achieved more easily. In particular, the process of pushing in connecting pipes and the like from the end of the branch pipe 120 when the branch pipe 120 is connected to the main pipe 110 at an acute angle, for example, 45°, is not easy. Moreover, in this case, there is a risk of damage to the branch pipe 120, etc. However, according to this embodiment of the present invention, since the connecting pipe is pushed into the branch pipe 120 before the branch pipe 120 is attached to the main pipe 110, such problems can be prevented.

[0052] The main piping 110 may have multiple conduits 111 inside. Multiple branch piping 120 may also be provided. In this case, at least one branch piping 120 may be detachably connected to each of the multiple conduits 111.

[0053] For example, as shown in Figures 1 and 2, the main piping 110 may have two conduits 111. One or more branch pipes 120, for example, two, can be attached to and detached from each conduit 111. In particular, when multiple branch pipes 120 are configured to be detachable from each conduit 111, the multiple branch pipes 120 can be arranged so as to be separated by a predetermined distance along the extending direction of each conduit 111. For example, when two branch pipes 120 are attached to one conduit 111, the two branch pipes 120 can be arranged so as to be separated by a predetermined distance along the vertical direction (Z-axis direction). In this case, it can be said that a total of four branch pipes 120 are configured to be detachable from one main piping 110.

[0054] In this embodiment, at least some of the multiple conduits 111 can have the cooling fluid flowing in different directions. This will be explained in more detail with further reference to Figures 4 and 5.

[0055] Figures 4 and 5 schematically show the flow of cooling fluid in different conduits 111 in a fluid transport piping 100 according to one embodiment of the present invention. For example, Figure 4 shows the flow of cooling fluid in section A2 of Figure 1, and Figure 5 shows the flow of cooling fluid in section A3 of Figure 1.

[0056] As shown in Figures 1 and 2, when two conduits 111, namely the first conduit 111a and the second conduit 111b, are provided in the main piping 110, one conduit, for example, the first conduit 111a, can function as an inlet conduit 111, and the other conduit, for example, the second conduit 111b, can function as an outlet conduit 111. In this case, the cooling fluid can flow in opposite directions within the two conduits 111.

[0057] More specifically, referring to Figure 4, the cooling fluid can flow downward (in the -Z axis direction) along the main flow path H inside the first conduit 111a, which is the main pipe 110, as indicated by arrow B1. At this time, a portion of the cooling fluid flowing in the first conduit 111a can flow out of the main flow path H through the branch flow path N of the branch pipe 120, as indicated by arrow B1'. The cooling fluid that flows out in this way flows into the inside or around the battery module.

[0058] Referring to Figure 5, the cooling fluid can flow upward (+Z axis direction) along the main flow path H inside the second conduit 111b, which is the main pipe 110, as indicated by arrow B2. At this time, the cooling fluid can flow from the branch pipe 120 into the second conduit 111b, as indicated by arrow B2'. That is, the cooling fluid flows through the branch flow path N before flowing into the main flow path H.

[0059] In this embodiment, the multiple branch pipes 120 can be configured to be connected to each of the multiple conduits (first conduit 111a, second conduit 111b) while being tilted in the same direction.

[0060] For example, referring to Figures 4 and 5, the branch pipe 120 connected to the first conduit 111a and the branch pipe 120 connected to the second conduit 111b can both be attached to and detached from each conduit 111 while inclined downwards. In particular, the branch pipes 120 connected to the first conduit 111a and the second conduit 111b can both be connected extending downwards at an angle of approximately 45° with respect to the direction of extension of the main flow path H. That is, the inlet branch pipe 120 and the outlet branch pipe 120 can be installed in a form that is inclined downwards at the same angle of 45° relative to the main pipe 110.

[0061] Specifically, with respect to the first conduit 111a, the cooling fluid flows out to the rear (-Y axis direction) and downward through the branch channel N. Also, with respect to the second conduit 111b, the cooling fluid flows in to the front (+Y axis direction) and upward through the branch channel N.

[0062] According to this embodiment of the present invention, the Venturi effect is effectively improved in both the inlet branch piping shown in Figure 4 and the outlet branch piping shown in Figure 5. Therefore, the differential pressure on the inlet and outlet piping can be reduced in the process of supplying cooling fluid to a cooling target such as a battery module, or discharging cooling fluid that has absorbed heat from the cooling target to the outside, and the flow rate or flow velocity can be significantly increased. Thus, the cooling efficiency of the entire water cooling system can be further improved. Furthermore, in this case, the cooling range can be further extended even when using the same chiller.

[0063] Furthermore, the main piping 110 may include a main housing 112. This will be explained in more detail with further reference to Figures 6 and 7.

[0064] Figure 6 is a schematic diagram showing a view of a fluid transport piping 100 according to one embodiment of the present invention from one side. For example, Figure 6 is a view from above of the fluid transport piping 100 according to one aspect of the present invention in an upright position. Figure 7 is a schematic cross-sectional diagram showing an example of a partial configuration of the fluid transport piping 100 according to one embodiment of the present invention. For example, Figure 7 is a cross-sectional view along the line A4-A4' in Figure 1.

[0065] A hollow can be formed in the main housing 112. For example, the main housing 112 may have an internal space, as shown by the portion V in Figures 6 and 7. Multiple conduits 111 can be housed together in such an internal space. In particular, the hollow V of the main housing 112, which is a single common space, can house both the first conduit 111a and the second conduit 111b. Such a main housing 112 may have a form that extends long in the longitudinal direction of the multiple conduits (first conduit 111a, second conduit 111b). For example, referring to Figures 1 and 7, the main housing 112 may have a form that extends long in the Z-axis direction. In this case, the hollow V of the main housing 112 may also extend long in the Z-axis direction.

[0066] According to such embodiments of the present invention, since two conduits 111, namely a first conduit 111a and a second conduit 111b, are contained within a single main housing 112, a system in which both fluid supply and discharge are performed can be easily realized with simple installation. For example, if a fluid transport piping 100 according to one aspect of the present invention is installed to carry cooling water for cooling a particular device, such as a battery in an energy storage system, both the outflow and inflow of the cooling water occur in a single pipe. Thus, a water cooling system for a device such as an ESS can be more easily realized with simple work or processes.

[0067] Furthermore, according to this embodiment of the present invention, thermal insulation is ensured during the transport of the cooling fluid, while effectively preventing condensation. In particular, the fluid transport piping 100 according to one aspect of the present invention has a double-pipe structure. That is, when cooling water flows inside the fluid transport piping 100, the cooling water and the outside air are double-blocked by the conduit 111 and the main housing 112. Therefore, even if there is a temperature difference between the cooling water and the outside air, it is possible to effectively prevent condensation from occurring on the surface of the fluid transport piping 100. Consequently, it is possible to prevent problems such as short circuits and fires caused by condensation from occurring inside devices such as ESS.

[0068] In such embodiments, branch holes R can be formed entirely in the conduit 111 and the main housing 112. For example, a hole may be formed in the central portion of the first conduit 111a, and a hole may also be formed at a predetermined position in the main housing 112 corresponding to this hole. The hole in the first conduit 111a and the hole in the main housing 112 can communicate with each other to form a branch hole R together. Alternatively, a hole may be formed in the second conduit 111b, and a hole may also be formed in the main housing 112 at a position and in a form corresponding to this hole, and these holes can communicate with each other to form a branch hole R.

[0069] Furthermore, the holes formed in the conduit 111 and the holes formed in the main housing 112 may have an integrated form. For example, as shown in Figure 6, each conduit 111 can be connected to the main housing 112 through connecting parts (C11, C12, C21, C22). In this case, a hollow is formed in at least some of the connecting parts, and such a hollow can be opened at both ends as a branch hole R, forming a hole in the conduit 111 and a hole in the main housing 112. More specifically, a hollow is formed in connecting part C12, and the open ends of this hollow can be located in the first conduit 111a and the main housing 112 to become a branch hole R. Also, a hollow is formed in connecting part C22, and the open ends of such a hollow can be located in the second conduit 111b and the main housing 112 to become a branch hole R.

[0070] If the main housing 112 contains multiple conduits 111, at least one of the conduits 111 may be configured to be at least partially separated from the inner surface of the main housing 112. In particular, all of the conduits 111 may be at least partially separated from the inner surface of the main housing 112.

[0071] For example, referring to the embodiments shown in Figures 6 and 7, the first conduit 111a and the second conduit 111b may be positioned on the left and right sides, respectively, within the hollow V of the main housing 112. In this case, the left outer surface of the first conduit 111a may be configured to be separated from the left inner surface of the hollow main housing 112 by a predetermined distance, as indicated by reference numeral V11. The right outer surface of the second conduit 111b may be configured to be separated from the right inner surface of the hollow main housing 112 by a predetermined distance, as indicated by reference numeral V12. In this case, it can be said that a gas layer, particularly an air layer, is formed between the outer surface of the first conduit 111a and the inner surface of the main housing 112 (V11), and between the outer surface of the second conduit 111b and the inner surface of the main housing 112 (V12). That is, the first conduit 111a and the second conduit 111b may be configured so that their respective surfaces, located on opposite sides of each other, are separated from the inner surface of the main housing 112.

[0072] According to this embodiment of the present invention, the effect of preventing condensation can be further improved. That is, the air layer formed between each conduit 111 and the main housing 112 functions as an insulating layer, making it possible to more effectively prevent condensation from occurring on the outer surface of the conduit 111 due to the temperature difference between the fluid flowing inside the conduit 111, such as cooling water, and the outside air.

[0073] Furthermore, multiple conduits 111 can be arranged within the hollow V of the main housing 112 so as to be separated from each other by a predetermined distance. In particular, an air layer can be formed between the conduits 111.

[0074] For example, referring to the embodiments in Figures 6 and 7, the first conduit 111a and the second conduit 111b are arranged in the left-right direction, and a space can be formed between them, as shown by the portion indicated by V2. Furthermore, a gas layer, particularly an air layer, can be formed in such a space between the first conduit 111a and the second conduit 111b.

[0075] The separation space, or air layer, between the first conduit 111a and the second conduit 111b can function as an insulating layer. Such an air layer can prevent heat transfer between the first conduit 111a and the second conduit 111b. In particular, cooling water at different temperatures may flow through the first conduit 111a and the second conduit 111b. For example, cooling water before heat absorption from the ESS battery may flow through the first conduit 111a, and cooling water after heat absorption from the ESS battery may flow through the second conduit 111b. In this case, the temperature of the cooling water in the second conduit 111b is higher than the temperature of the cooling water in the first conduit 111a. At this time, the air layer V2 between the first conduit 111a and the second conduit 111b can suppress heat transfer from the second conduit 111b to the first conduit 111a. Therefore, the temperature of the cooling water supplied through the first conduit 111a can be maintained, and the cooling performance can be ensured even more stably.

[0076] Furthermore, multiple conduits 111 can be mounted parallel to each other inside the hollow V of the main housing 112.

[0077] For example, the first conduit 111a and the second conduit 111b may each be configured to extend long in the vertical direction (Z-axis direction). In particular, the extension direction of the first conduit 111a and the extension direction of the second conduit 111b are parallel, and the distance between them from the upper end to the lower end can be kept constant. That is, as shown by the part indicated by V2 in Figure 7, the separation space between the first conduit 111a and the second conduit 111b can be kept constant from the upper end to the lower end.

[0078] According to this embodiment of the present invention, the thermal insulation performance between the first conduit 111a and the second conduit 111b can be stably maintained throughout the entire internal space of the main housing 112.

[0079] Furthermore, in the embodiment shown in Figure 7, the separation distance between each conduit 111 (first conduit 111a, second conduit 111b) and the inner surface of the main housing 112 can be maintained constant from one end to the other. For example, the space between the first conduit 111a and the inner surface of the main housing 112, as indicated by V11, and the space between the second conduit 111b and the inner surface of the main housing 112, as indicated by V12, can maintain a constant separation distance in the left-right direction from the upper end to the lower end.

[0080] According to this embodiment of the present invention, a uniform effect of preventing condensation can be ensured throughout the main housing 112 from one end to the other in the direction of fluid transport.

[0081] Furthermore, in a fluid transport piping 100 according to one aspect of the present invention, each of the multiple conduits 111 can be formed in a circular tubular shape. For example, referring to Figure 6, both the first conduit 111a and the second conduit 111b can be formed with an annular horizontal cross-section. That is, the first conduit 111a and the second conduit 111b can be formed in a cylindrical shape with a flow path formed inside. In this case, it can be said that the flow path of each conduit 111 is also formed in a cylindrical shape.

[0082] According to this embodiment, the first conduit 111a and the second conduit 111b can be separated to the maximum extent possible. For example, referring to the embodiment in Figure 6, as shown by V2, the separation space between the first conduit 111a and the second conduit 111b is maximized. Therefore, heat transfer between the fluid flowing inside the first conduit 111a and the fluid flowing inside the second conduit 111b can be minimized. Furthermore, according to this embodiment, the fluid can flow smoothly inside the first conduit 111a and the second conduit 111b.

[0083] In this embodiment, each circular tubular conduit 111 (first conduit 111a, second conduit 111b) can have an air layer formed between it and the inner surface of the main housing 112, following the shape of the outer surface of each conduit. That is, the air layer can be formed in a manner that encloses at least a portion of the outer surface of each conduit. For example, referring to the configuration in Figure 6, a curved surface is formed on the left outer surface of the first conduit 111a, and an air layer can be extended with a uniform thickness along this left-side curved shape of the first conduit 111a from the top to the left and bottom of the first conduit 111a (V11). Also, in the embodiment of Figure 6, a curved surface is formed on the right outer surface of the second conduit 111b, and an air layer can be extended with a uniform thickness along this right-side curved shape of the second conduit 111b from the top to the bottom of the second conduit 111b through the right side (V12). In this case, the air layer formed on the outer surface of each conduit can be said to be formed in the form of a plate that is curved along the curved shape of the outside of each conduit.

[0084] In particular, the first conduit 111a and the second conduit 111b can form a curved air layer in the curved portion facing the inner surface of the main housing 112. For example, in the case of the first conduit 111a, a curved plate-shaped air layer can be formed on the left outer surface. And in the case of the second conduit 111b, a curved plate-shaped air layer can be formed on the right outer surface.

[0085] According to this embodiment of the present invention, the condensation prevention effect due to the thermal insulation performance of the air layer can be uniformly achieved throughout. For example, in the case of the first conduit 111a, the thermal insulation performance due to the air layer can be uniformly ensured from the upper part of the left outer surface through the left side to the lower part. Therefore, the possibility of blind spots in condensation prevention can be reduced. Furthermore, according to this embodiment, a rich thermal insulation layer can be formed while reducing the overall volume of the piping.

[0086] At least one of the first conduit 111a and the second conduit 111b can be connected and fixed to the hollow interior of the main housing 112 through two or more connecting parts.

[0087] For example, referring to Figures 3 and 6, the first conduit 111a may comprise two connecting parts, namely a first front connecting part C11 and a first rear connecting part C12. Through these two connecting parts (first front connecting part C11, first rear connecting part C12), the first conduit 111a can be connected and fixed to the inner surface of the main housing 112. Also, referring to Figure 6, the second conduit 111b may comprise two connecting parts, namely a second front connecting part C21 and a second rear connecting part C22. Through these two connecting parts (second front connecting part C21, second rear connecting part C22), the second conduit 111b can be connected and fixed to the inner surface of the main housing 112.

[0088] According to this embodiment of the present invention, the first conduit 111a and the second conduit 111b can stably maintain their positions inside the hollow main housing 112. In particular, forces may be applied to each conduit 111 as cooling water flows through them. At this time, each connecting part can prevent the first conduit 111a and / or the second conduit 111b from moving inside the hollow main housing 112 due to such forces.

[0089] Furthermore, according to this embodiment, a separation space, such as an air layer, formed between each conduit 111 and the inner surface of the main housing 112 can be stably maintained through connecting parts provided on the inside and outside of each conduit 111, respectively. Therefore, in this case, the double structure of the fluid transport piping 100 according to one aspect of the present invention, particularly the thermal insulation performance provided by the air layer, is stably ensured, thereby more reliably achieving condensation prevention performance.

[0090] Furthermore, the connecting portion may be located at both ends of the first conduit 111a or the second conduit 111b in a direction perpendicular to the arrangement direction of the first conduit and the second conduit.

[0091] For example, referring to Figure 6, the first conduit 111a and the second conduit 111b are arranged in the left-right direction (X-axis direction), but the connecting parts may be provided in the front-rear direction (Y-axis direction) of each conduit 111 which is perpendicular to the left-right direction in the horizontal plane. More specifically, the first connecting parts (first front connecting part C11, first rear connecting part C12) are provided in front of and behind the first conduit 111a, respectively, and can be coupled and fixed to the inner surface of the main housing 112. Also, the second connecting parts (second front connecting part C21, second rear connecting part C22) are provided in front of and behind the second conduit 111b, respectively, and can be coupled and fixed to the inner surface of the main housing 112.

[0092] According to this embodiment of the present invention, since no connecting portion is provided between the conduits 111, it is possible to prevent heat from being transferred between the conduits 111 through the connecting portion.

[0093] In such embodiments, multiple connecting parts may be composed of different sizes (thicknesses). For example, referring to the embodiment shown in Figure 6, the rear connecting parts (first rear connecting part C12, second rear connecting part C22) may be formed thicker than the front connecting parts (first front connecting part C11, second front connecting part C21). In particular, the rear connecting parts (first rear connecting part C12, second rear connecting part C22) may be located between the conduit 111 and the branch pipe 120. A branch hole R connecting the conduit 111 and the branch pipe 120 may be formed in the rear connecting parts (first rear connecting part C12, second rear connecting part C22). That is, since the rear connecting parts (first rear connecting part C12, second rear connecting part C22) provide space for forming the branch hole R, their thickness in the horizontal direction, especially in the left-right direction, may be greater than that of the front connecting parts (first front connecting part C11, second front connecting part C21).

[0094] Figure 8 is a schematic cross-sectional view showing a partial configuration of the fluid transport piping 100 according to another embodiment of the present invention. For example, Figure 8 shows another form of the cross-sectional configuration along the line A1-A1' in Figure 1. In the various embodiments included herein, detailed descriptions of parts where the descriptions of other embodiments are identical or similarly applicable are omitted, and the differences are described primarily.

[0095] As shown in Figure 8, through holes may be formed in the connecting parts that secure each conduit 111 inside the hollow interior of the main housing 112. More specifically, in the embodiment of Figure 8, one or more through holes may be formed in the first front connecting part C11 and the first rear connecting part C12 provided in front of and behind the first conduit 111a, as indicated by D. Also, in the embodiment of Figure 6, one or more through holes may be formed in the second front connecting part C21 and / or the second rear connecting part C22 provided in the second conduit 111b.

[0096] In this embodiment of the present invention, the through-hole D can connect two air layers separated by a connecting portion. For example, in Figure 6, two air layers (V11, V2) separated by a first connecting portion (first front connecting portion C11, first rear connecting portion C12) can be connected to each other by the through-hole D formed in the first connecting portion (first front connecting portion C11, first rear connecting portion C12). Also, in Figure 2, two air layers (C12, V2) separated by a second connecting portion (second front connecting portion C21, second rear connecting portion C22) can be connected to each other by the through-hole formed in the second connecting portion (second front connecting portion C21, second rear connecting portion C22).

[0097] In particular, the through-hole D of the connecting portion located between the conduit 111 and the branch pipe 120 may be located in a portion where the branch hole R is not formed. For example, referring to the embodiment in Figure 8, the first rear connecting portion C12 is located between the first conduit 111a and the branch pipe 120. In this case, multiple through-holes D may be formed in the first rear connecting portion C12 in the vertical direction. Here, the multiple through-holes D may not be formed in the portion where the branch hole R is located, but only in the portion where the branch hole R is not located.

[0098] According to this embodiment, the thermal insulation performance of the air layers can be further improved by the flow of air between the air layers. Furthermore, according to this embodiment, by forming an air layer in the central part of the connecting portion, it is possible to prevent or reduce the transfer of heat between the conduit 111 and the main housing 112 through the connecting portion. Therefore, in this case, it is possible to more reliably prevent condensation from occurring on the outer surface of the main housing 112.

[0099] The main piping 110 may be configured such that both ends of the main flow path H in the longitudinal direction are open. For example, in the embodiment shown in Figure 1, the main piping 110 may be configured such that both ends of the main flow path H formed in each conduit 111 are open. More specifically, referring to the embodiment shown in Figure 7, a first flow path H1 may be formed as the main flow path H in the first conduit 111a, and a second flow path H2 may be formed as the main flow path H in the second conduit 111b. In this case, the upper and lower ends of the first flow path H1 and the second flow path H2 may be configured to be open and exposed to the outside.

[0100] In this configuration, cooling fluid can flow into or out of the main channel H from its open end.

[0101] Furthermore, one aspect of the present invention may be configured so that two or more fluid transport pipes 100 are connected. In particular, one aspect of the present invention may be configured so that fluid can be connected in the longitudinal direction, and so that fluid can flow between the conduits 111 contained in each pipe. This will be explained in more detail with reference to Figures 9 to 11.

[0102] Figure 9 is an exploded perspective view schematically showing a configuration in which two fluid transport pipes 100 are joined together according to one embodiment of the present invention, and Figure 10 is a perspective view of the joined configuration in Figure 9. Figure 11 is a cross-sectional view showing the configuration of part A3 in Figure 10.

[0103] Referring to Figures 9 to 11, multiple fluid transport pipes 100, as shown by P1 and P2, can be connected longitudinally. More specifically, in Figures 9 to 11, the first pipe P1 and the second pipe P2 extend long in the vertical direction and are located at the upper and lower parts, respectively, and can be connected to each other in the vertical direction (Z-axis direction). Furthermore, the first pipe P1 and the second pipe P2 can be configured in the same form as each other.

[0104] Here, each conduit (first conduit 111a, second conduit 111b) included in the fluid transport piping 100 may be configured so that their open ends can be fitted together. First, in each fluid transport piping 100, the upper and lower ends of the first conduit 111a are open, and these open ends may be configured so that they can be fitted together. That is, with respect to the first piping P1, the upper end of the first conduit 111a in the first piping P1 may be configured to communicate with and be fastened to the lower end of the first conduit 111a.

[0105] Therefore, when two different fluid transport pipes 100, namely the first pipe P1 and the second pipe P2, are connected vertically, the lower end of the first conduit 111a included in the upper first pipe P1 can be aligned with the upper end of the first conduit 111a included in the lower second pipe P2. At this time, the fastening portions of the first conduit 111a between the two connected pipes can be configured to be sealed to prevent leakage of fluid from the first flow path H1. Thus, cooling water or the like can flow continuously between the first conduits 111a included in the two fluid transport pipes 100, for example, the first pipe P1 and the second pipe P2.

[0106] Furthermore, in each fluid transport pipe 100, the upper and lower ends of the second conduit 111b are also open, and these open ends can be configured to fit together. That is, with respect to the first pipe P1, the upper end of the second conduit 111b in the first pipe P1 can be configured to communicate with and fasten together with the lower end of the second conduit 111b.

[0107] Therefore, when two different fluid transport pipes 100, namely the first pipe P1 and the second pipe P2, are connected vertically, the lower end of the second conduit 111b of the first pipe P1, which is located above, can be connected to the upper end of the second conduit 111b of the second pipe P2, which is located below. At this time, the connection points of the two second conduits 111b can be sealed to prevent leakage of fluid from the second flow path H2. Thus, a fluid such as cooling water can flow continuously between the second conduits 111b containing the two fluid transport pipes 100.

[0108] Figures 9 to 11 show a configuration in which two fluid transport pipes 100 are connected, for the sake of explanation, but three or more fluid transport pipes 100 may be connected in a long manner. In particular, in the case of large equipment such as ESS, in order to configure a cooling system for supplying cooling water to multiple batteries, a very large number of fluid transport pipes 100 are connected to each other, and in this case, the connections between the first conduits 111a and the second conduits 111b of each fluid transport pipe 100 can be long.

[0109] According to this embodiment of the present invention, a medium- to large-scale cooling system can be easily realized by connecting two different fluid transport pipes 100. In particular, according to this embodiment, the number of connected fluid transport pipes 100 can be selectively adjusted, and the length of the fluid transport path can be freely adjusted. Therefore, a fluid transport pipe 100 that is compatible and applicable to various types of cooling systems can be provided.

[0110] A fluid transport pipe 100 according to one aspect of the present invention may further include an internal sealing section. This will be described in more detail with reference to Figure 12.

[0111] Figure 12 is an enlarged view of section A6 in Figure 11.

[0112] Referring to Figures 11 and 12, the internal sealing portion indicated by S1 may be located at the end of the first conduit 111a. For example, the internal sealing portion S1 may be located at the upper end of the first conduit 111a. In this case, when two different fluid transport pipes 100, for example, the first pipe P1 and the second pipe P2, are connected, the internal sealing portion S1 may be interposed between the two first conduits 111a. Also, as shown in Figure 11, the internal sealing portion S1 may also be located at the end of the second conduit 111b. For example, the internal sealing portion S1 may be located at the upper end of the second conduit 111b. Therefore, when two different fluid transport pipes 100 are connected, the internal sealing portion S1 may be interposed between the two second conduits 111b.

[0113] In particular, the internal sealing portion S1 may be formed in a ring shape and positioned over the entire upper end of the first conduit 111a and / or the second conduit 111b. Furthermore, if the first conduit 111a and the second conduit 111b are formed in a circular tubular shape, the internal sealing portion S1 may be configured in an O-ring shape. The internal sealing portion S1 may be made of an elastic material such as rubber, silicone, or urethane. Alternatively, the internal sealing portion S1 may include an adhesive material.

[0114] According to this embodiment of the present invention, when multiple fluid transport pipes 100 are connected, the sealing performance between the first conduits 111a and / or between the second conduits 111b can be further improved. Therefore, even when a fluid such as cooling water flows through the channels included in the multiple fluid transport pipes 100, leakage prevention performance can be more reliably ensured.

[0115] In a fluid transport piping 100 according to one aspect of the present invention, each conduit 111 may be configured such that its upper end and lower end can be fitted together.

[0116] For example, as shown in Figure 12, when the lower end of a first conduit 111a located at the top and the upper end of a first conduit 111a located at the bottom are connected between different fluid transport pipes 100 stacked vertically, the lower end of the upper first conduit 111a may be configured to fit into the upper end of the lower first conduit 111a. In this case, the end of the first conduit 111a, for example, the lower end, may be configured to protrude in the direction of connection, i.e., downward, as shown by J1 in Figure 12. Then, a recess may be formed in the upper end of the first conduit 111a in a position and shape corresponding to such a lower end protrusion J1 of the first conduit 111a. Therefore, when the first pipe P1 and the second pipe P2 are connected vertically, the lower end protrusion J1 of the first conduit 111a of the first pipe P1 can be inserted and fastened into the upper end recess of the first conduit 111a of the second pipe P2.

[0117] On the other hand, while Figure 12 shows the configuration of the first conduit 111a, a similar insertion and fastening configuration can also be provided for the second conduit 111b. That is, both the upper and lower ends of the second conduit 111b can be configured to fit together.

[0118] According to this embodiment of the present invention, when the two fluid transport pipes 100 are connected to each other, the bonding force and sealing force between each conduit can be further improved. For example, when cooling water flows through each conduit, such a conduit insertion and fastening configuration can more reliably achieve cooling water leakage prevention performance.

[0119] Furthermore, according to this embodiment, a complex pathway for fluid to escape to the outside can be formed at the connection portion of the conduit 111. For example, a leakage path from the first flow path H1 to the outside through the connection portion of the conduit 111 can be formed in a long, bent shape. Therefore, the sealing performance at the connection portion of each conduit can be further improved.

[0120] Furthermore, in this embodiment, the internal sealing portion S1 may be located at the insertion and fastening portion of each conduit. For example, as shown in Figure 12, the internal sealing portion S1 may be interposed at the fastening portion between the lower end protrusion J1 of the first conduit 111a of the first pipe P1 and the upper end recess of the first conduit 111a of the second pipe P2.

[0121] Furthermore, the main housing 112 may be configured so that one end and the other end can be connected to each other.

[0122] For example, referring to Figures 9 to 11, two different fluid transport pipes 100 can be connected longitudinally, and in this case, the main housings 112 included in the two fluid transport pipes 100 can be configured so that both ends in the longitudinal direction can be connected to each other. More specifically, in the embodiments shown in Figures 9 to 11, when the first pipe P1 and the second pipe P2 are stacked and connected in the vertical direction, the lower end of the main housing 112 of the first pipe P1 located in the upper layer and the upper end of the main housing 112 of the second pipe P2 located in the lower layer can be configured so that they can be connected to each other. Here, since the first pipe P1 and the second pipe P2 can be formed in the same form, it can be said that the upper and lower ends of each pipe are configured to be connected to each other.

[0123] According to this embodiment, the coupling configuration of the main housing 112 makes it possible to stably maintain the connection state between each conduit. Therefore, the transport of fluid flowing along the internal flow path of each conduit can be stably carried out. Furthermore, in this case, watertightness at the fastening points of each conduit can be ensured, making it possible to more reliably prevent water leakage and other problems.

[0124] When two different main housings 112 are joined, the methods of joining them can vary. For example, one main housing 112 may be configured to be insertably fastened with another main housing 112. In this case, one end of the main housing 112 (e.g., the upper end) may be configured to protrude in the joining direction (e.g., upward) and to fit into the other end of the main housing 112 (e.g., the lower end). Alternatively, the main housing 112 may be configured to be hook-connected with another main housing 112. For example, the main housing 112 may have a hook projection at its upper end and a hook groove at its lower end in a position and form corresponding to such a hook projection.

[0125] The main housing 112 may be configured such that the internal hollow V is sealed when two different fluid transport pipes 100 are connected to each other. For example, the main housing 112 has a hollow V, but the hollow V may be formed in a tubular shape with both ends open. In this case, the open ends of the main housing 112 may be formed in a ring shape. For example, the horizontal cross-sectional shape of the open ends of the main housing 112 may be a substantially elliptical ring shape. Such a main housing 112 can be connected to the main housing 112 of another fluid transport pipe 100 in a manner in which the ring-shaped open ends abut each other, thereby sealing the internal hollow V. In this case, the internal space of the main housing 112 may be configured so as not to communicate with the external space. As a specific example, when the first pipe P1 and the second pipe P2 are connected as in the embodiments shown in Figures 9 to 11, the hollows of the first pipe P1 and the hollows of the second pipe P2 can communicate with each other to form a common hollow. However, such a common hollow space can be configured to be sealed and not connected to the external space of each pipe (first pipe P1, second pipe P2).

[0126] According to this embodiment of the present invention, condensation prevention performance can be achieved more effectively. That is, according to this embodiment, with the multiple fluid transport pipes 100 connected to each other, the hollow V of the main housing 112 is sealed, so that outside air cannot easily flow into the interior of the main housing 112. Therefore, even when the humidity outside the main housing 112 is high, the internal space of the main housing 112 can maintain a low humidity. Thus, it is possible to prevent condensation from occurring on the outer surfaces of the first conduit 111a and the second conduit 111b inside the hollow V of the main housing 112.

[0127] Furthermore, according to this embodiment, the thermal insulation performance of the air layer between each conduit (first conduit 111a, second conduit 111b) located in the hollow of the main housing 112 and the main housing 112, as well as the air layer between the conduits (first conduit 111a, second conduit 111b) themselves, is maintained more stably. Therefore, the problem of condensation occurring on the outer surface of the main housing 112 can be prevented more effectively.

[0128] The main housing 112 may include a cover portion, as shown by the part labeled E in Figure 11. Here, the cover portion E may be provided at least one end of the main housing 112. For example, the cover portion E may be provided at the upper end of the main housing 112.

[0129] Furthermore, the cover portion E may be configured to extend further in the coupling direction than the first conduit 111a and the second conduit 111b. For example, referring to Figures 9 to 11, the cover portion E may project further upward than the first conduit 111a and the second conduit 111b. As another example, the cover portion E may be provided at the lower end of the main housing 112 and project further downward than the lower ends of the first conduit 111a and the second conduit 111b.

[0130] In particular, the cover portion E may be configured to cover a part of the main housing 112 of the other fluid transport pipe 100 when the two fluid transport pipes 100 are connected to each other. For example, as shown in Figures 9 to 11, the cover portion E located on the upper end side of the second pipe P2 may be configured to cover the outside of the lower end of the main housing 112 of the first pipe P1.

[0131] According to this embodiment of the present invention, the fitting configuration of the two main housings 112 is easily realized by the cover portion E. Therefore, the coupling force between the two fluid transport pipes 100 can be stably ensured. Furthermore, according to this embodiment, the coupling of the two main housings 112 is guided by the cover portion E. Therefore, the operation of connecting multiple fluid transport pipes 100 is made easier. Moreover, according to this embodiment, the sealing force of the hollow formed inside the main housing 112 between the two fluid transport pipes 100 can be further improved by the cover portion E. Therefore, the condensation prevention performance can be further improved.

[0132] On the other hand, while the above-described embodiment mainly described a configuration in which both ends of the hollow of the main housing 112 are open, the hollow of the main housing 112 may be configured in a sealed form in each fluid transport pipe 100. For example, in one aspect of the present invention, the fluid transport pipe 100 may be configured in a form in which only both ends of the first conduit 111a and the second conduit 111b are open, and both ends of the main housing 112 are not open but closed. In this case, the thermal insulation performance of the air layer formed by the hollow V is ensured even more stably. Furthermore, even if condensation occurs inside the hollow of the main housing 112, it is possible to prevent the condensation from being discharged to the outside of the fluid transport pipe 100, thereby preventing various problems such as short circuits and fires. Moreover, in this case, since a separate hollow V is formed for each fluid transport pipe 100, even if a crack or the like occurs in a specific fluid transport pipe 100 and the sealing state of the hollow V is released, the sealing state of the hollow V of the other fluid transport pipes 100 can be maintained.

[0133] A fluid transport piping 100 according to one aspect of the present invention may further include an external sealing section. This will be described in more detail with reference to Figure 13, along with Figure 11.

[0134] Figure 13 is an enlarged view of section A7 in Figure 11.

[0135] Referring to Figures 11 and 13, a fluid transport pipe 100 according to one aspect of the present invention may further include an external sealing portion provided on the outer surface of the end of the main housing 112. More specifically, in the embodiment of Figure 13, an external sealing portion, such as indicated by S2, may be provided at the lower end of the main housing 112 of the first pipe P1. Such an external sealing portion S2 may be formed in a ring shape and configured to surround the outside of the main housing 112. The external sealing portion S2 may also be made of an elastic material such as rubber, silicone, or urethane. The external sealing portion S2 may also include an adhesive material. Furthermore, as shown in Figure 13, there may be two or more external sealing portions S2 spaced apart from each other in the coupling direction of the fluid transport pipe 100, for example, in the vertical direction (Z-axis direction).

[0136] According to this embodiment of the present invention, the sealing force of the hollow V at the joint portion of the main housing 112 can be further improved. Therefore, the thermal insulation performance of the air layer formed by the hollow V can be more stably ensured, and the condensation prevention effect and other factors can be further improved.

[0137] Furthermore, if the main housing 112 is provided with a cover portion E, the external sealing portion S2 may be provided in the portion that is connected to such cover portion E. For example, the external sealing portion S2 may be located in the portion of the first pipe P1 that is inserted into the interior of the cover portion E of the second pipe P2. In this case, the external sealing portion S2 may be in contact with the inner surface of the cover portion E of the second pipe P2.

[0138] Furthermore, the external sealing portion S2 may be arranged in a form that is inserted inward from the outer surface of the main housing 112. In this case, a ring-shaped groove into which the external sealing portion S2 is inserted may be formed on the outer surface of the main housing 112. For example, as shown in the embodiments of Figures 11 and 13, a groove recessed horizontally inward toward the hollow may be formed on the outer surface of the main housing 112. Such a groove may be formed on at least a portion of the outer surface of the main housing 112. In particular, the groove may be formed in a form that completely surrounds the outer surface of the main housing 112. An O-ring shaped external sealing portion S2 may then be inserted into such a groove.

[0139] According to this embodiment of the present invention, the position of the external sealing portion S2 on the outer surface of the main housing 112 is stably maintained. In particular, when the two fluid transport pipes 100 are connected, movement of the external sealing portion S2 can be prevented. Therefore, the sealing performance of the external sealing portion S2 is further improved.

[0140] At least a portion of the fluid transport piping 100 according to one aspect of the present invention can be manufactured by injection molding. For example, the main piping 110, particularly the first conduit 111a, the second conduit 111b, and the main housing 112, can be manufactured in an integrated form using injection molding. In particular, the fluid transport piping 100 according to one aspect of the present invention can be manufactured relatively easily using injection molding in a double-pipe configuration that can prevent condensation.

[0141] Figure 14 is a schematic cross-sectional view showing a partial configuration of a fluid transport piping 100 according to yet another embodiment of the present invention. For example, Figure 14 is a modified example of the configuration in Figure 6.

[0142] Referring to Figure 14, the first conduit 111a and the second conduit 111b may be configured to have different separation distances from the inner surface of the main housing 112. More specifically, in the embodiment shown in Figure 14, if F1 is the horizontal distance (left-right distance) between the outer surface of the first conduit 111a and the left inner surface of the main housing 112, and F2 is the horizontal distance (left-right distance) between the outer surface of the second conduit 111b and the right inner surface of the main housing 112, then F1 may be designed to be longer than F2. In such an embodiment, the first conduit 111a is configured to be further away from the inner surface of the main housing 112 than the second conduit 111b. Furthermore, in such an embodiment, the outer hollow (V11) around the first conduit 111a is formed to be wider than the outer hollow (V12) around the second conduit 111b.

[0143] According to this embodiment, the thermal insulation performance of the hollow first conduit 111a and the thermal insulation performance of the second conduit 111b can be set to be different. That is, since the outer hollow (V11) of the first conduit 111a is formed to be wider than the outer hollow (V12) of the second conduit 111b, it can be said that better thermal insulation performance is ensured in the first conduit 111a compared to the second conduit 111b.

[0144] In particular, fluids at different temperatures may flow through the first conduit 111a and the second conduit 111b. For example, low-temperature cooling water may flow through the first conduit 111a before cooling the battery, and high-temperature cooling water may flow through the second conduit 111b after cooling the battery. Therefore, condensation is likely to occur on the left outer surface of the main housing 112 where the first conduit 111a is located. However, according to this embodiment, since the left-side insulation layer is formed thickly, condensation on the left outer surface of the main housing 112 can be prevented more reliably. That is, in this embodiment, the condensation prevention performance can be further improved by allowing low-temperature fluid to flow in the area where a wide air layer is formed.

[0145] A fluid transport piping 100 according to one aspect of the present invention may include polymer materials. For example, in a fluid transport piping 100 according to one aspect of the present invention, at least a portion of the main pipe 110 and the branch pipe 120 may be made of polyamide (PA) material. However, a fluid transport piping 100 according to one aspect of the present invention is not limited to such specific materials and may include a variety of other materials, such as other various plastic materials.

[0146] Furthermore, the fluid transport piping 100 according to one aspect of the present invention may further include an insulating material, particularly a foamed insulating material. For example, the foamed insulating material may be composed of a nitrile butadiene rubber material. Such an insulating material can be attached to the outer surface of the main housing 112 to further improve the condensation prevention performance of the fluid transport piping 100.

[0147] In particular, the main housing 112 may have a flat surface on its outer surface. More specifically, as shown in Figures 1 and 2, the main housing 112 may have a flattened front and rear surface and a curved left and right side surface. In this case, the foamed insulation material can be easily attached in a manner that surrounds the outer surface of the main housing 112. Therefore, the processability for attaching the foamed insulation material is improved, and the effect of improving the condensation prevention performance by the foamed insulation material can be further increased.

[0148] Furthermore, in the case of a fluid transport piping 100 according to one aspect of the present invention, the branch pipe 120 can be configured to be detachably attached to the main pipe 110. Therefore, the process of attaching the heat insulating material to the outside of the main pipe 110 becomes easier. That is, the heat insulating material can be attached to the outside of the main pipe 110 in a manner that wraps around the outer surface of the main pipe 110 while the branch pipe 120 is not attached to the main pipe 110. When attaching the heat insulating material in this manner, since there are no protruding parts on the outside of the main pipe 110 like the branch pipe 120, the heat insulating material can be attached to the outer surface of the main pipe 110 easily and precisely. The branch pipe 120 can then be attached to the main pipe 110 after the heat insulating material has been attached to the outside of the main pipe 110. Therefore, the ease of assembly between the branch pipe 120 and the main pipe 110, and between the main pipe 110 and the heat insulating material is improved. In this case, the heat insulating material can be attached to the main pipe 110 over the widest possible area, minimizing the exposed area of ​​the main pipe 110.

[0149] Furthermore, according to this embodiment, the insulation material can be easily replaced. That is, if the insulation material is damaged or broken during use of the fluid transport piping 100, it is necessary to replace the insulation material. In this case, the branch pipe 120 is first separated from the main pipe 110, the existing insulation material is removed from the main pipe 110, and new insulation material is attached to the main pipe 110. After the attachment of the new insulation material is complete, the branch pipe 120 is attached to the main pipe 110. In this case, since the branch pipe 120 does not interfere with the removal of the existing insulation material or the attachment of the new insulation material, the insulation material replacement process can be easily carried out.

[0150] Figure 15 is an exploded perspective view schematically showing a partial configuration of a fluid transport piping 100 according to yet another embodiment of the present invention. For example, Figure 15 is an enlarged view of the configuration of part A8 in Figure 2.

[0151] Referring to Figure 15, a first fastening hole may be formed in the main piping 110, as indicated by C1. In particular, such a first fastening hole C1 may be provided around the branch hole R of the main housing 112. Furthermore, multiple first fastening holes C1 may be provided and arranged at predetermined intervals along the periphery of the branch hole R. For example, three first fastening holes C1 may be arranged around the branch hole R. In this case, the three first fastening holes C1 may be arranged at a predetermined angle, i.e., at 120° intervals, with respect to the center point of the branch hole R.

[0152] In such a configuration, the branch pipe 120 may be configured to be bolted to the first fastening hole C1 of the main pipe 110. For example, the branch pipe 120 may have a second fastening hole formed in the branch pipe 120 at a position and in a shape corresponding to the first fastening hole C1 of the main pipe 110, as shown by C2 in Figure 15. Then, with the branch pipe 120 attached to the main pipe 110, the second fastening hole C2 and the first fastening hole C1 can be connected and fastened together with a common bolt (not shown). In another example, the branch pipe 120 may be provided with a projection or hook in a form that can be inserted into the first fastening hole C1 of the main pipe 110. Then, by inserting and fastening such a projection or hook into the first fastening hole C1, the branch pipe 120 can be fixed to the main pipe 110.

[0153] According to this embodiment of the present invention, a configuration for assembling or separating the branch pipe 120 from the main pipe 110 can be more easily realized. In this case, the bonding force between the branch pipe 120 and the main pipe 110 is stably ensured. In particular, when multiple first fastening holes C1 are formed at a predetermined angle with respect to the branch hole R, a uniform fastening force can be ensured.

[0154] Furthermore, a sealing member (not shown) may be included between the branch pipe 120 and the main pipe 110. For example, the sealing member may be provided in the form of an O-ring around the branch hole R of the main pipe 110 and / or around the connecting end of the branch pipe 120. Here, the sealing member may be made of an elastic material such as rubber, silicone, or urethane, or a foam material. According to such an embodiment, the sealing performance at the joint between the branch pipe 120 and the main pipe 110 can be further improved.

[0155] Figure 16 is a schematic perspective view showing the configuration of a fluid transport piping 100 according to yet another embodiment of the present invention, Figure 17 is an exploded perspective view of the embodiment in Figure 16, and Figure 18 is a schematic diagram showing a configuration in which two fluid transport piping 100s of Figure 16 are connected. In this embodiment as well, the differences from the embodiments described above will be explained in detail.

[0156] Referring to Figures 16 to 18, the fluid transport pipes 100 are formed in a manner very similar to those in Figures 1 to 15 described above, but can be formed in an even flatter overall shape with almost no protruding portions from the outer surface. In particular, referring to the embodiment in Figure 16, the fluid transport pipes 100 can be configured to have a flat surface with no protruding portions from one end to the other in the longitudinal direction (Z-axis direction), for example from the upper end to the lower end, excluding the branch pipes 120. Furthermore, referring to embodiments such as Figures 11 and 12, the fluid transport pipes 100 have cover portions E on the end sides where they are connected to each other, and these cover portions E are configured to protrude horizontally more than the other surfaces. However, in the case of the fluid transport pipes 100 of the embodiment in Figure 16, the connecting portions on the end sides are also configured to be flat without protruding horizontally. Furthermore, as shown in the embodiment in Figure 18, when the two fluid transport pipes 100 (P3, P4) are connected to each other, the connecting portions have no protruding portions to the outside and maintain a flat state with the other surfaces of the main pipe 110, excluding the branch pipes 120.

[0157] According to this embodiment of the present invention, the joint side of the main pipe 110 in the fluid transport piping 100 is formed flat and smooth, further improving processability when applying foam insulation material. In addition, in this configuration, the portion protruding from the main pipe 110 is removed or reduced, thereby expanding the portion covered by the foam insulation material or improving the sealing performance of the foam insulation material, and further improving the thermal insulation effect of the foam insulation material. Furthermore, in this case, in addition to the advantages in appearance, the protruding portion on the outside of the fluid transport piping 100 is reduced, minimizing interference with other surrounding components.

[0158] Furthermore, according to this embodiment, similar to the embodiment in Figure 17, the branch pipe 120 can be configured to be detachably attached to the main pipe 110. Therefore, before the branch pipe 120 is attached to the main pipe 110, foam insulation material or the like can be wrapped around the outside of the main pipe 110. In this case, as shown in Figure 17, if the outer surface of the main pipe 110 is formed flat, the process of attaching the insulation material can be carried out more smoothly.

[0159] Referring to Figure 17, the branch pipe 120 may include a branch unit 121. Such a branch unit 121 may be configured to be detachably attached to the main pipe 110, particularly the main housing 112 of the main pipe 110. Here, the branch unit 121 may include a mounting part 121a and a conduit part 121b.

[0160] The mounting part 121a is a portion that is placed on the surface of the main pipe 110, and may be in a form that is easily placed on the surface of the main pipe 110. For example, the mounting part 121a may be configured in a plate shape, with its inner surface configured to be placed on the outer surface of the main housing 112 of the main pipe 110. Here, the inner surface of the mounting part 121a may be configured parallel to the outer surface of the main housing 112.

[0161] The conduit part 121b may have a hollow interior, and the hollow of the conduit part 121b may be provided as a branch channel N. One end of the conduit part 121b, for example, the inner end, may be connected to the mounting part 121a. The conduit part 121b may extend from the mounting part 121a at a predetermined angle. That is, the direction of extension of the conduit part 121b may be at a predetermined angle, particularly an acute angle, with respect to the direction formed by the surface of the mounting part 121a. As a more specific example, if the plate-shaped mounting part 121a is positioned parallel to the Z-axis, the conduit part 121b may be inclined to form a 45° angle with the Z-axis. According to such an embodiment, as described above, it is possible to improve the flow rate or flow velocity in the branch piping 120.

[0162] The mounting part 121a can be bolted to the main piping 110, similar to the embodiment in Figure 15. In this case, the mounting part 121a may have fastening holes similar in form to the second fastening hole C2 in Figure 15 for bolt fastening.

[0163] In this embodiment, the mounting part 121a and the conduit part 121b can be formed as a single unit. For example, both the mounting part 121a and the conduit part 121b can be manufactured integrally from polyamide material by injection molding. However, the present invention is not necessarily limited to this form.

[0164] Furthermore, a mounting groove may be formed in the main pipe 110, as shown by G1 in Figure 15. Such a mounting groove G1 may be configured to allow the peripheral edge of the branch unit 121 of the branch pipe 120, particularly the mounting part 121a, to be mounted. Moreover, the mounting groove G1 may be configured to be recessed inward from other parts around the branch hole R of the main pipe 110. In this case, the mounting part 121a of the branch pipe 120 can be inserted and mounted in the mounting groove G1.

[0165] According to this embodiment of the present invention, the mounting groove G1 guides the mounting position of the branch pipe 120, thereby facilitating the assembly process of the branch pipe 120 with respect to the main pipe 110. Furthermore, according to this embodiment, the mounting groove G1 can improve the coupling force between the branch pipe 120 and the main pipe 110. For example, the mounting groove G1 can suppress movement in the left-right direction (X-axis direction) and the up-down direction (Z-axis direction) when the branch pipe 120 is mounted around the branch hole R of the main pipe 110.

[0166] Furthermore, the branch pipe 120 may further include a cap unit 122, as shown in Figure 17.

[0167] The cap unit 122 may be made of a different material than the branch unit 121. In particular, the cap unit 122 may be made of a material with lower thermal conductivity than the branch unit 121. For example, the cap unit 122 may be made of an insulating material such as rubber or foam. The cap unit 122 may be configured to cover at least a portion of the branch unit 121 from the outside. The cap unit 122 may be fastened and secured to the branch unit 121 by a snap-fit ​​method, or it may be connected and secured to the branch unit 121 or the main pipe 110 through a separate adhesive or bolt connection.

[0168] According to this embodiment of the present invention, the heat insulation of the branch pipe 120 is improved because the branch pipe 120 is configured in a double-pipe configuration. Therefore, the condensation suppression effect in the branch pipe 120 is further improved. Furthermore, according to this embodiment, it is possible to prevent damage or breakage to the branch unit 121 that directly forms the branch channel N due to external impact or material. Therefore, a more stable water leakage prevention effect can be achieved for the branch pipe 120. Moreover, according to this embodiment, the branch unit 121 can be firmly connected to the main pipe 110 by the cap unit 122.

[0169] The cap unit 122 may include a mounting cap 122a and a conduit cap 122b, as shown in Figure 17.

[0170] The mounting cap 122a may be configured to cover the mounting part 121a of the branching unit 121 from the outside. For example, if the mounting part 121a is plate-shaped, the mounting cap 122a may also be configured to be roughly plate-shaped to cover the outer surface of the mounting part 121a. In particular, the mounting cap 122a may cover the entire outer surface of the mounting part 121a so that it is not exposed to the outside. Therefore, the surface area of ​​the mounting cap 122a may be configured to be larger than the surface area of ​​the mounting part 121a. In addition, the inner surface of the mounting cap 122a may be provided with a housing groove capable of accommodating the mounting part 121a. In this case, the mounting cap 122a may be attached to the outer surface of the main piping 110 with the mounting part 121a housed in the housing groove. At this time, the mounting cap 122a may be connected and fixed to the main piping 110, for example, the main housing 112, by bolts or adhesive.

[0171] The conduit cap 122b may be configured to cover the conduit part 121b of the branching unit 121 from the outside. In particular, since the conduit part 121b may be configured in a tubular shape, the conduit cap 122b may also be configured in a tubular shape. That is, a hollow is formed in the conduit cap 122b, into which the conduit part 121b can be inserted. In this case, the inner diameter of the hollow in the conduit cap 122b may be larger than the outer diameter of the conduit part 121b. In particular, the conduit cap 122b may cover the entire outer surface of the conduit part 121b so that the conduit part 121b is not exposed to the outside. Therefore, the length of the conduit cap 122b may be the same as or greater than the length of the conduit part 121b. In this case, as shown in Figure 16, the cap unit 122 is configured to cover the entire branching unit 121 from the outside so that the branching unit 121 is not directly exposed to the outside.

[0172] In the cap unit 122, the mounting cap 122a and the conduit cap 122b can be formed as a single unit. That is, the mounting cap 122a and the conduit cap 122b can be made of the same material and manufactured in an integrated form. Furthermore, the conduit cap 122b can be configured to be tilted at a predetermined angle relative to the mounting cap 122a. That is, just as the conduit part 121b in the branching unit 121 is configured to be tilted at a predetermined angle relative to the mounting part 121a, in the cap unit 122, the conduit cap 122b can be configured to be tilted at a predetermined angle relative to the mounting cap 122a, corresponding to the tilted form of the branching unit 121. For example, the conduit cap 122b may be tilted at approximately 45° relative to the surface of the mounting cap 122a.

[0173] According to this embodiment of the present invention, thermal insulation is more reliably ensured at the branching portion of the flow path, i.e., the connection between the main pipe 110 and the branch pipe 120. Therefore, the condensation suppression effect at such flow path branching portions can be further improved. Furthermore, according to this embodiment, the assembly of the branch pipe 120 to the main pipe 110 becomes easier. Moreover, if the outside of the main housing 112 is covered with thermal insulation material, the thermal insulation material can be more stably and tightly bonded to the outside of the main housing 112.

[0174] Furthermore, in this embodiment, the mounting cap 122a can prevent bolts and other components connected to the mounting part 121a from being exposed to the outside. Therefore, corrosion and damage to the bolts can be minimized, and electrical insulation can be ensured.

[0175] Furthermore, as shown in the embodiment of Figure 15, if a mounting groove G1 is formed in the main piping 110, the mounting cap 122a may be configured to cover the mounting groove G1 entirely. In this case, external exposure of the mounting groove G1 is suppressed, and the effect of preventing the inflow or outflow of fluid or foreign matter in the mounting groove G1 portion can be improved.

[0176] Figure 19 is a schematic diagram showing a part of the configuration of a fluid transport piping 100 according to one embodiment of the present invention. In particular, Figure 19 is an example of a configuration viewed from the direction of arrow A9 in Figure 16, showing the branch piping 120.

[0177] Referring to Figure 19, the cap unit 122 may be configured to be separated from the branching unit 121 by a predetermined distance, at least partially. In particular, the conduit cap 122b of the cap unit 122 may be configured to be separated from the conduit part 121b by a predetermined distance. Furthermore, the conduit cap 122b and the conduit part 121b may each be formed in the form of a hollow tube, but the inner diameter of the conduit cap 122b may be larger than the outer diameter of the conduit part 121b. In this case, a predetermined space may be formed between the inner surface of the conduit cap 122b and the outer surface of the conduit part 121b, as shown by the portion indicated by I in Figure 19. In particular, the conduit part 121b and the conduit cap 122b may be configured to be separated by a predetermined distance overall. Such a separation space may take the form of completely surrounding the periphery of the conduit part 121b.

[0178] According to this embodiment of the present invention, an air layer can be formed as a thermal insulation layer between the cap unit 122 and the branch unit 121. Therefore, the condensation suppression effect on the branch pipe 120 is further improved. In this case, vibrations and shocks are less likely to be transmitted between the cap unit 122 and the branch unit 121, thus preventing damage or breakage. For example, shocks applied to the cap unit 122 from the outside are not easily transmitted to the branch unit 121. Also, vibrations generated when cooling fluid flows inside the branch unit 121 are not easily transmitted to the cap unit 122. Therefore, the mechanical stability of the cap unit 122 and the branch unit 121 can be improved.

[0179] Referring to the embodiment in Figure 16, the main housing 112 may be configured to be bolted to another main housing 112. For example, the main housing 112 may have bolt holes formed at corresponding positions at the upper and lower ends, as shown in the portion indicated by K. Therefore, as shown in Figure 18, when two fluid transport pipes 100 (P3, P4) are connected in the vertical direction, the bolt holes K on the connection side may communicate with each other. Fastening members such as bolts can then be inserted into these bolt holes K, and the two fluid transport pipes 100 (P3, P4) can be connected and fixed to each other. Furthermore, in the main housing 112, the portion in which the bolt holes K are formed may be formed so as not to protrude outward. According to such an embodiment, when attaching heat insulating material to the fluid transport pipe 100, it is possible to prevent the heat insulating material from getting caught in the portion in which the bolt holes K are formed, thereby improving workability.

[0180] Furthermore, as shown in Figure 16, the main housing 112 may have a hook structure formed on the connecting end side. Therefore, when the two main pipes 110 are connected to each other in the longitudinal direction, the hook structures located on their end sides can be connected to each other.

[0181] Figure 20 is a schematic diagram showing a partial configuration of a cooling device according to another embodiment of the present invention.

[0182] Referring to Figure 20, a cooling device according to one aspect of the present invention includes a fluid transport pipe 100 according to one aspect of the present invention. In particular, a cooling device according to one aspect of the present invention may include a plurality of fluid transport pipes 100 according to one aspect of the present invention. In this case, the plurality of fluid transport pipes 100 may be connected in the longitudinal direction.

[0183] Furthermore, the assembly of multiple fluid transport pipes 100, i.e., the pipe assembly, may be configured in a form that is bent one or more times. For example, as shown in Figure 20, the pipe assembly may be configured in a form that is bent twice. In this case, the pipe assembly may have two portions extending in the vertical direction (Z-axis direction) and one portion extending in the horizontal direction (Y-axis direction). In this case, the bent portion of the pipe assembly may be provided with bent pipes that connect the fluid transport pipes 100 extending in different directions.

[0184] Between multiple fluid transport pipes 100, the hollows between the first conduits 111a and between the second conduits 111b can be extended, and their open ends can be connected to each other so that fluid, particularly cooling water, can flow through them.

[0185] Furthermore, a cooling device according to one aspect of the present invention may further include one or more connecting pipes 200, as shown in Figure 20. The connecting pipes 200 may be directly or indirectly connected to the fluid transport piping 100. For example, one end of the connecting pipe 200 may be directly connected to a branch pipe 120 of the fluid transport piping 100, and the other end may be connected to a cooling target, such as a battery module. In this case, the connecting pipe 200 may be configured to supply cooling water supplied from the branch pipe 120 of the fluid transport piping 100 to the battery module, or to transfer cooling water discharged from the battery module to the branch pipe 120 of the fluid transport piping 100. Alternatively, the connecting pipe 200 may be configured to allow fluid to flow between different cooling targets. For example, the connecting pipe 200 may be connected between battery modules so that cooling water supplied to one battery module is transferred to the other battery module. Here, the connecting pipe 200 may be made of a polyamide material, but the present invention is not necessarily limited to such materials.

[0186] Furthermore, a cooling device according to one aspect of the present invention may further include a cooling fluid supply unit (not shown) configured to supply fluid, particularly cooling water, to a fluid transport pipe 100 according to one aspect of the present invention. For example, a cooling device according to one aspect of the present invention may further include a chiller as the cooling fluid supply unit.

[0187] Figure 21 is a schematic diagram showing the configuration of an energy storage system according to yet another embodiment of the present invention.

[0188] Referring to Figure 21, an energy storage system according to one aspect of the present invention includes a fluid transport piping 100 according to one aspect of the present invention. Furthermore, as described above with respect to the cooling device, the energy storage system according to one aspect of the present invention may further include a plurality of fluid transport piping 100 and cooling fluid supply units. That is, an energy storage system according to one aspect of the present invention may include a cooling device according to one aspect of the present invention as shown in Figure 20.

[0189] Furthermore, an energy storage system according to one aspect of the present invention may include one or more battery modules 300. In particular, the energy storage system may include a plurality of battery modules 300, and the plurality of battery modules 300 may be electrically connected to each other in series and / or parallel. In this case, each battery module 300 may be equipped with a plurality of battery cells (secondary batteries).

[0190] Furthermore, an energy storage system according to one aspect of the present invention may further include a rack frame 400 for housing one or more battery modules 300. For example, an energy storage system according to one aspect of the present invention may include a rack frame 400 that can house a plurality of battery modules 300 in the vertical and / or horizontal directions.

[0191] Furthermore, an energy storage system according to one aspect of the present invention may further include a control unit for controlling or monitoring the charging and discharging operations of the battery module 300, measuring the temperature inside or outside the energy storage system, or controlling a cooling device according to one aspect of the present invention.

[0192] Furthermore, an energy storage system according to one aspect of the present invention may further include various components of energy storage systems known at the time of filing the present invention. For example, an energy storage system according to one aspect of the present invention may further include a container for housing components such as those shown in Figure 21.

[0193] On the other hand, while terms such as up, down, left, right, front, and back are used in this specification to indicate direction, these terms are used for convenience of explanation, and it is obvious to those skilled in the art that they can change depending on the position of the object being examined, the position of the observer, etc. Furthermore, while the terms "inside" and "outside" are used in this specification, unless otherwise specified, "inside" refers to the direction toward the center of each component, and "outside" refers to the opposite direction.

[0194] Although the present invention has been described above with reference to limited embodiments and drawings, it goes without saying that the present invention is not limited thereto, and that various modifications and variations can be made by persons with ordinary skill in the art to which the present invention pertains, within the equivalent scope of the technical concept and claims of the present invention. [Explanation of symbols]

[0195] 100: Fluid transport piping 110: Main piping 111: Conduit 111a: 1st conduit, 111b: 2nd conduit 112: Main Housing 120: Branch piping 121: Branch Unit 121a: Mounting parts, 121b: Conduit parts 122: Cap Unit 122a: Mounting cap, 122b: Conduit cap 200: Connecting pipe 300: Battery Module 400: Rack Frame R: Branch hole H: Main channel H1: First channel, H2: Second channel N: Branch channel V:Hollow G1: Mounting groove P1: First pipe, P2: Second pipe

Claims

1. A main pipe having a long, unidirectional shape, with a main flow channel formed longitudinally within it, and a branch hole formed in the middle of the main flow channel, A branch pipe is configured to be detachably attached to the portion of the main pipe where a branch hole is formed, and a branch channel is formed inside the main pipe. Includes, The aforementioned main piping has multiple conduits inside, The main piping further comprises a main housing having a hollow structure, wherein a plurality of the conduits are configured to be housed together in the hollow structure. Each of the aforementioned conduits is connected to the main housing through a connecting portion. The branch hole is formed by the fact that the hollow open ends formed in the connecting portion are located in the conduit and the main housing, respectively, in a fluid transport piping.

2. The fluid transport piping according to claim 1, wherein the branch piping is configured to be connectable to the main piping such that the direction of extension of the branch flow path is inclined at an acute angle with respect to the direction of extension of the main flow path.

3. The fluid transport piping according to claim 1 or 2, wherein the branch pipes are provided in a plurality, and at least one branch pipe is configured to be detachably attached to each of the plurality of conduits.

4. The fluid transport piping according to claim 3, wherein the multiple branch pipes are configured to be connectable to each of the multiple conduits in the same direction.

5. The fluid transport piping according to claim 1, wherein the plurality of conduits are configured to be at least partially separated from the inner surface of the main housing.

6. The fluid transport piping according to claim 1, wherein the plurality of conduits are arranged within the hollow interior of the main housing so as to be separated from each other by a predetermined distance.

7. The fluid transport piping according to claim 1 or 2, wherein the main piping is configured such that both ends in the longitudinal direction of the main flow path are open.

8. The main piping has fastening holes formed around the branch hole. The fluid transport piping according to claim 1 or 2, wherein the branch pipe is configured to be bolted to the fastening holes of the main pipe.

9. The aforementioned branch piping includes a branch unit, The aforementioned branching unit is Mounting parts placed on the surface of the main piping, The fluid transport piping according to claim 1 or 2, comprising a conduit part having a hollow structure as the branch channel, one end of which is connected to the aforementioned mounting part and extending from the aforementioned mounting part at a predetermined angle.

10. The fluid transport piping according to claim 9, wherein the main piping has a mounting groove formed therein on which the aforementioned mounting parts can be mounted.

11. The fluid transport piping according to claim 9, wherein the branch piping further comprises a cap unit made of a material with lower thermal conductivity than the branch unit, the cap unit being configured to cover at least a portion of the branch unit from the outside.

12. The fluid transport piping according to claim 11, wherein the cap unit includes a mounting cap configured to cover the mounting part from the outside, and a conduit cap configured to cover the conduit part from the outside.

13. The fluid transport piping according to claim 11, wherein the cap unit is configured to be separated from the branching unit by at least a predetermined distance.

14. A cooling device including a fluid transport piping as described in claim 1 or 2.

15. An energy storage system comprising fluid transport piping according to claim 1 or 2.

Images