Refrigerant pipeline, direct cooling machine and energy storage container

Abstract

The utility model provides a refrigerant pipeline, a direct cooling machine and an energy storage container, the refrigerant pipeline is suitable for communicating a refrigerant loop of the direct cooling machine with a refrigerant loop of a heat exchange plate, the refrigerant pipeline comprises a main pipe and a shunt pipe, the main pipe comprises a first end and a second end, and the first end is in sealed connection with the refrigerant loop of the direct cooling machine; the shunting pipe comprises a third end and a fourth end, the third end is hermetically connected with the second end, and the fourth end is hermetically connected with a refrigerant loop of the heat exchange plate; the flow dividing pipe is a flexible metal pipe, and the flow dividing pipe is connected with a refrigerant loop of the heat exchange plate in a sealed mode through a first quick connector. According to the arrangement mode, detachable connection between the refrigerant pipeline and the refrigerant loop of the heat exchange plate is achieved, and follow-up maintenance is more convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage systems, in particular to a refrigerant pipeline, a direct cooling machine and an energy storage container. BACKGROUND

[0002] In the field of energy storage containers, when using a direct cooling machine to control the temperature of energy storage batteries, a refrigerant pipeline is needed to connect the refrigerant circuit of the direct cooling machine and the refrigerant circuit of the heat exchange plate (the heat exchange plate is a heat exchange structure pre-installed in the energy storage battery cabinet and used for heat conduction connection of the energy storage battery). The refrigerant pipeline is usually connected to the refrigerant circuit of the heat exchange plate by welding, which is not conducive to subsequent maintenance because the refrigerant pipeline cannot be detached. Therefore, how to quickly and detachably connect the refrigerant pipeline to the refrigerant circuit of the heat exchange plate is a technical problem to be solved in the field. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a refrigerant pipeline which can be connected to the refrigerant circuit of the heat exchange plate through a quick connector, thereby realizing detachable connection of the refrigerant pipeline and facilitating subsequent maintenance. In addition, the present application also provides a direct cooling machine which can be connected to the refrigerant pipeline, and an energy storage container comprising the refrigerant pipeline.

[0004] In order to achieve the above purpose, the present application provides the following technical solutions:

[0005] A refrigerant pipeline is used to connect the refrigerant circuit of a direct cooling machine and the refrigerant circuit of a heat exchange plate, and the refrigerant pipeline comprises:

[0006] a main pipe comprising a first end and a second end, the first end being connected to the refrigerant circuit of the direct cooling machine;

[0007] a shunt pipe comprising a third end and a fourth end, the third end being connected to the second end, and the fourth end being connected to the refrigerant circuit of the heat exchange plate;

[0008] wherein the shunt pipe is a flexible metal pipe, and the shunt pipe is connected to the refrigerant circuit of the heat exchange plate through a first quick connector.

[0009] Optionally, the second end is connected to the third end of different shunt pipes through a shunt, and the shunt pipes are capillary tubes.

[0010] Optionally, the shunt pipe is a soft red copper pipe.

[0011] Optionally, the main pipe comprises a plurality of pipe segments connected in series, and at least the pipe segment connected to the refrigerant circuit of the direct cooling machine is a flexible pipe.

[0012] Optionally, the main pipe comprises a first pipe section and a second pipe section, one end of the first pipe section is sealingly connected with the refrigerant circuit of the direct cooling machine, the other end of the first pipe section is sealingly connected with the second pipe section, and one end of the second pipe section away from the first pipe section is sealingly connected with the shunt pipe.

[0013] The first pipe section is sealingly connected with the refrigerant circuit of the direct cooling machine through a second quick plug connector, and / or the first pipe section is sealingly connected with the second pipe section through a third quick plug connector.

[0014] Optionally, the first quick plug connector, the second quick plug connector and the third quick plug connector each comprise:

[0015] a male head comprising a first connecting section and a second connecting section connected with each other;

[0016] a female head comprising a third connecting section and a fourth connecting section connected with each other, the fourth connecting section being capable of being sleeved on the second connecting section and being sealingly connected with the second connecting section;

[0017] One of the first connecting section of the first quick plug connector and the third connecting section of the first quick plug connector is sealingly connected with the refrigerant circuit of the heat exchange plate, and the other is sealingly connected with one end of the shunt pipe close to the heat exchange plate.

[0018] One of the first connecting section of the second quick plug connector and the third connecting section of the second quick plug connector is sealingly connected with the refrigerant circuit of the direct cooling machine, and the other is sealingly connected with one end of the first pipe section close to the direct cooling machine.

[0019] One of the first connecting section of the third quick plug connector and the third connecting section of the third quick plug connector is sealingly connected with one end of the first pipe section away from the direct cooling machine, and the other is sealingly connected with one end of the second pipe section close to the first pipe section.

[0020] Optionally, the male head of the first quick plug connector is provided with a first radially outward protruding protruding edge, the female head in the first quick plug connector is provided with a second radially outward protruding protruding edge, and when the male head of the first quick plug connector is plugged into the female head in the first quick plug connector, the first protruding edge and the second protruding edge can be connected through a threaded structure.

[0021] Optionally, the outer circumference of the second connecting section is provided with a plurality of sealing grooves, the plurality of sealing grooves are spaced apart in the axial direction of the second connecting section, and each of the sealing grooves is provided with a sealing ring, and the sealing ring can abut against the inner wall of the fourth connecting section and be compressed under the action of the second connecting section and the fourth connecting section.

[0022] A direct cooling machine is provided with a refrigerant circuit, and the refrigerant circuit can be sealingly connected with the refrigerant pipeline in any one of the above.

[0023] An energy storage container comprises:

[0024] An energy storage battery;

[0025] A direct cooling machine is provided with a refrigerant circuit, and the refrigerant circuit can be sealingly connected with the refrigerant pipeline in any one of the above.

[0026] A heat exchange plate is provided with a refrigerant circuit, and the heat exchange plate is in heat conduction connection with the energy storage battery.

[0027] A refrigerant pipeline assembly comprises a first refrigerant pipeline and a second refrigerant pipeline, the first refrigerant pipeline is in communication with a liquid outlet of the refrigerant circuit of the direct cooling machine and a liquid inlet of the refrigerant circuit of the heat exchange plate, the second refrigerant pipeline is in communication with a liquid inlet of the refrigerant circuit of the direct cooling machine and a liquid outlet of the refrigerant circuit of the heat exchange plate, and the first refrigerant pipeline and the second refrigerant pipeline are both the refrigerant pipeline in the above.

[0028] Optionally, the flow divider in the first refrigerant pipeline and the flow divider in the second refrigerant pipeline are distributed in a staggered manner.

[0029] The refrigerant pipeline provided by the present application comprises a main pipe and a flow pipe, wherein the flow pipe is a flexible metal pipe, and the flow pipe is sealingly connected with the refrigerant circuit of the heat exchange plate through a first quick plug connector; when it is necessary to disconnect the connection between the flow pipe and the heat exchange plate in subsequent maintenance, it is only necessary to control the end of the flow pipe connected with the first quick plug connector to move in a direction that can make the first quick plug connector disconnected, and correspondingly, when it is necessary to connect the flow pipe with the refrigerant circuit of the heat exchange plate, it is only necessary to control the end of the flow pipe connected with the first quick plug connector to move in a direction that can make the first quick plug connector connected; and in the above process, the structure of the first quick plug connector is not damaged, thereby realizing the detachable connection between the refrigerant pipeline and the refrigerant circuit of the heat exchange plate, and facilitating subsequent maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can also obtain other drawings according to the provided drawings without creating any creative labor.

[0031] Figure 1 It is a structural schematic view of a refrigerant pipeline provided in an embodiment of the present application in a connected state;

[0032] Figure 2 It is a structural schematic view of a refrigerant pipeline provided in an embodiment of the present application in a connected state; Figure 1A structural schematic view of the refrigerant pipeline in another perspective view;

[0033] Figure 3 A structural schematic view of the energy storage container including only part of the energy storage battery cabinet according to the embodiment of the present application;

[0034] Figure 4 A structural schematic view of the energy storage container including only part of the energy storage battery cabinet according to the embodiment of the present application; Figure 2 A partial structural schematic view of the A area in the embodiment of the present application;

[0035] Figure 5 A partial structural schematic view of the A area in the embodiment of the present application; Figure 2 A partial structural schematic view of the B area in the embodiment of the present application.

[0036] In the embodiment of the present application, Figures 1-5

[0037] 1 - direct cooling machine, 2 - energy storage battery, 3 - heat exchange plate, 4 - main pipe, 5 - third quick plug connector, 6 - second quick plug connector, 7 - shunt pipe, 8 - first quick plug connector, 9 - energy storage battery cabinet, 10 - shunt;

[0038] 401 - first pipe section, 402 - second pipe section. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] The refrigerant pipeline in the embodiments of the present application refers to a pipeline capable of guiding refrigerant, which is suitable for connecting the refrigerant circuit of the direct cooling machine 1 and the refrigerant circuit of the heat exchange plate 3. The heat exchange plate 3 is a heat exchange structure prearranged in the energy storage battery cabinet 9 and used for heat conduction connection of the energy storage battery 2. It should be noted that the energy storage battery 2 can be an energy storage battery in all energy fields such as photovoltaic power generation, tidal power generation, thermal power generation, nuclear power generation, geothermal power generation, hydroelectric power generation, biomass power generation, and wind power generation, and the present application is not limited in this regard.

[0041] As Figures 1-5 ​As shown, the refrigerant pipeline in the embodiment of the present application includes a main pipe 4 and a shunt pipe 7, wherein the main pipe 4 includes a first end and a second end, and the shunt pipe 7 includes a third end and a fourth end; the first end of the main pipe 4 is sealingly connected with the refrigerant circuit of the direct cooling machine 1, the second end is sealingly connected with the third end of the shunt pipe 7, and the fourth end of the shunt pipe 7 is sealingly connected with the refrigerant circuit of the heat exchange plate 3. In this way, the refrigerant flowing out of the refrigerant circuit of the direct cooling machine 1 can flow through the main pipe 4 and the shunt pipe 7 in turn, and then flow into the refrigerant circuit of the heat exchange plate 3, and correspondingly, the refrigerant flowing out of the refrigerant circuit of the heat exchange plate 3 can flow through the shunt pipe 7 and the main pipe 4 in turn, and then flow into the refrigerant circuit of the direct cooling machine 1, so that the circulation of the refrigerant between the direct cooling machine 1 and the heat exchange plate 3 is realized. In addition, the shunt pipe 7 is a flexible metal pipe (i.e. a metal pipe that can be bent and shaped as needed during engineering installation to change the position of the end), and the shunt pipe 7 is sealingly connected with the refrigerant circuit of the heat exchange plate 3 through a first quick plug connector 8 (the first quick plug connector 8 refers to a connection structure that can realize quick connection between different pipelines through plugging, and the specific structure of the first quick plug connector 8 can be referred to below).

[0042] As described above, the refrigerant pipeline in the embodiment of the present application includes the shunt pipe 7, and in this arrangement, by arranging a plurality of shunt pipes 7 and connecting the refrigerant circuits of different heat exchange plates 3 with the plurality of shunt pipes 7 respectively, the refrigerant circuit of the direct cooling machine 1 can be connected with the refrigerant circuits of a plurality of different heat exchange plates 3 at the same time. Since the pipeline structure for realizing the shunt is located outside the direct cooling machine 1, during subsequent maintenance, only the energy storage battery cabinet 9 needs to be opened, and the pipeline structure for realizing the shunt can be directly observed, thereby facilitating subsequent maintenance. At the same time, arranging the pipeline structure for realizing the shunt outside the direct cooling machine 1 makes it unnecessary to arrange the pipeline structure for realizing the shunt inside the direct cooling machine 1, thereby facilitating the simplification of the refrigerant circuit inside the direct cooling machine 1, and further facilitating the miniaturization and portability of the direct cooling machine 1.

[0043] In addition, the shunt pipe 7 is sealingly connected with the refrigerant circuit of the heat exchange plate 3 through the first quick connector 8, that is, the sealing connection between the shunt pipe 7 and the refrigerant circuit of the heat exchange plate 3 is realized by plugging, and since the shunt pipe 7 is a flexible metal pipe, it can be bent and shaped as needed, so that when the connection between the shunt pipe 7 and the heat exchange plate 3 needs to be disconnected for subsequent maintenance, only the end of the shunt pipe 7 connected to the first quick connector 8 needs to be moved in a direction that can disconnect the first quick connector 8, and correspondingly, when the shunt pipe 7 needs to be connected to the refrigerant circuit of the heat exchange plate 3, only the end of the shunt pipe 7 connected to the first quick connector 8 needs to be moved in a direction that can connect the first quick connector 8; and in the above process, the structure of the first quick connector 8 is not damaged. That is, in the embodiment, by providing the shunt pipe 7 as a flexible metal pipe and sealingly connecting the shunt pipe 7 with the refrigerant circuit of the heat exchange plate 3 through the first quick connector 8, detachable connection between the refrigerant circuit and the heat exchange plate 3 is realized, which is convenient for subsequent maintenance.

[0044] Further, in some embodiments, the second end of the main pipe 4 is sealingly connected with the third end of different shunt pipes 7 through the shunt 10, and the shunt pipes 7 are all capillary tubes. In this arrangement, the refrigerant in the main pipe 4 is evenly distributed to different shunt pipes 7 through the distribution of the shunt 10, and since the shunt pipes 7 are capillary tubes, the flow rate of the refrigerant entering the capillary tubes increases, which causes the refrigerant to have a certain pressure drop in the capillary tubes, thereby reducing the influence of uneven flow resistance of the refrigerant when evaporating in the multiple parallel heat exchange plates 3, and improving the uniformity of refrigerant distribution.

[0045] In a preferred embodiment, the shunt 10 is a Venturi shunt 10, which has higher distribution accuracy than ordinary shunts 10, and can reduce the energy consumption inside the system, thereby realizing higher energy efficiency while ensuring the accuracy of fluid distribution; at the same time, the Venturi shunt 10 can further improve the uniformity of refrigerant distribution in cooperation with the speed increasing effect of the capillary tube. Specifically, in the Venturi shunt 10, the increased speed after distribution means that the flow rate of the refrigerant at the throat is higher, and therefore the pressure at this point is lower. Since the design of the Venturi shunt 10 enables the refrigerant to form a stable pressure difference and flow rate distribution when passing through, when the flow rate increases, the pressure difference experienced by the refrigerant in each shunt channel is also more consistent, which helps to achieve more uniform distribution.

[0046] It should be noted that the capillary tube in the foregoing refers to a thin tube with a small flow area so that the refrigerant entering the distribution pipe 7 through the flow divider 10 can be accelerated. For example, the capillary tube in the foregoing can be a thin tube with a pipe diameter of 4.76 mm or 6.35 mm. In a specific embodiment, the distribution pipe 7 is a soft red copper pipe with an outer diameter of 4.76 mm. In another specific embodiment, the distribution pipe 7 is a soft red copper pipe with an outer diameter of 6.35 mm.

[0047] In some embodiments, the main pipe 4 includes a plurality of pipe segments, and the plurality of pipe segments are in communication with each other. At least the pipe segment for connecting the refrigerant circuit of the direct cooling machine 1 is a flexible pipe, which refers to a flexible pipe that can meet the requirements of refrigerant flow (such as pressure requirements). For example, it can be an automotive air conditioning hose.

[0048] The energy storage container using the above refrigerant pipeline can be used when the direct cooling machine 1 is assembled in the energy storage battery cabinet 9. Only when the direct cooling machine 1 is fixed at the mounting position of the energy storage battery cabinet 9, the main pipe 4 in the refrigerant pipeline is connected with the refrigerant circuit of the direct cooling machine 1. Since the pipe segment for connecting the refrigerant circuit of the direct cooling machine 1 in the main pipe 4 is a flexible pipe, the first end of the main pipe 4 is a free end before the refrigerant circuit of the direct cooling machine 1 is connected. That is, the position of the first end of the main pipe 4 can be freely adjusted before the refrigerant circuit of the direct cooling machine 1 is connected. Therefore, when the position of the direct cooling machine 1 deviates from the preset mounting position after the installation of the direct cooling machine 1 is completed, the position of the first end of the main pipe 4 can be adjusted to ensure that the first end of the main pipe 4 can be connected with the refrigerant circuit of the direct cooling machine 1, thereby avoiding repeated adjustment of the mounting position of the direct cooling machine 1 to improve the installation efficiency. At the same time, the above arrangement can also avoid the problem that the refrigerant circuit of the direct cooling machine 1 and the refrigerant circuit of the heat exchange plate 3 cannot be connected due to the production error of the assembly structure of the direct cooling machine 1 and / or the production error of the assembly structure of the energy storage battery cabinet 9.

[0049] Further, in some exemplary embodiments, the main pipe 4 comprises a first pipe section 401 and a second pipe section 402, wherein one end of the first pipe section 401 is sealingly connected with the refrigerant circuit of the direct cooler 1, the other end of the first pipe section 401 is detachably sealingly connected with one end of the second pipe section 402, and the other end of the second pipe section 402 is sealingly connected with the distribution pipe 7. As described above, the first pipe section 401 is the pipe section of the main pipe 4 for connecting the refrigerant circuit of the direct cooler 1, and the first pipe section 401 is detachably connected with the second pipe section 402, i.e., in the present embodiment, at least the first pipe section 401 is a flexible pipe, and the first pipe section 401 is detachably connected with the second pipe section 402. In this way, when the direct cooler 1 is assembled in the energy storage battery cabinet 9, the connection between the first pipe section 401 and the second pipe section 402 can be disconnected first, i.e., the first pipe section 401 is detached from the second pipe section 402, then the first pipe section 401 is connected with the refrigerant circuit of the direct cooler 1 outside the energy storage battery cabinet 9, then the direct cooler 1 with the first pipe section 401 is installed at the predetermined installation position of the energy storage battery cabinet 9, and the first pipe section 401 is reconnected with the second pipe section 402, thereby realizing the communication between the refrigerant circuit of the direct cooler 1 and the refrigerant circuit of the heat exchange plate 3.

[0050] It should be understood that in the related art, the liquid inlet and the liquid outlet of the refrigerant circuit of the direct cooler 1 are arranged close to the edge of the end surface of the direct cooler 1 (the end surface refers to the surface of the direct cooler 1 facing the door of the energy storage battery cabinet 9 after the direct cooler 1 is assembled in the energy storage battery cabinet 9), and after the direct cooler 1 is assembled in the energy storage battery cabinet 9, the liquid inlet and the liquid outlet face and are close to the side wall of the energy storage battery cabinet 9 (for the specific arrangement position of the liquid inlet and the liquid outlet of the refrigerant circuit of the direct cooler 1, please refer to Figure 1 and Figure 2 ). The arrangement position of the liquid inlet and the liquid outlet causes that after the direct cooler 1 is installed at the predetermined installation position of the energy storage battery cabinet 9, the operation space for connecting the first end of the main pipe 4 with the refrigerant circuit of the direct cooler 1 is extremely small, which is not convenient for the connection of the main pipe 4 with the refrigerant circuit of the direct cooler 1. However, in the above-mentioned embodiments of the present application, after the first pipe section 401 is connected with the refrigerant circuit of the direct cooler 1 outside the energy storage battery cabinet 9, the direct cooler 1 with the first pipe section 401 is installed at the predetermined installation position of the energy storage battery cabinet 9, and the first pipe section 401 is reconnected with the second pipe section 402. Since there are fewer obstacles around the connection position of the first pipe section 401 and the second pipe section 402, the operation space is larger, thereby effectively solving the above-mentioned inconvenience caused by the arrangement position of the liquid inlet and the liquid outlet.

[0051] It should be understood that the above-mentioned primary pipe 4 including the first pipe section 401 and the second pipe section 402 is only an exemplary implementation of the primary pipe 4, and the application is not limited thereto. For example, in actual implementation, the primary pipe 4 can also include a third pipe section and a fourth pipe section, etc. In addition, it should be noted that the primary pipe 4 has multiple pipe sections, which does not mean that the primary pipe 4 is necessarily formed by splicing multiple pipe fittings. For example, in actual implementation, the primary pipe 4 can also be an integrally formed hose, and the hose is divided into different pipe sections according to different functions or positions.

[0052] On the basis that the primary pipe 4 includes the first pipe section 401 and the second pipe section 402, in some embodiments, the second pipe section 402 is arranged as a hard pipe (the hard pipe refers to a pipe fitting with a certain rigidity and not easy to bend, for example, the second pipe section 402 can be arranged as a red copper pipe or a stainless steel pipe, etc.). In this arrangement, before the refrigerant pipeline is installed in the energy storage battery cabinet 9, accurate layout and planning can be performed to ensure that the refrigerant pipeline is reasonable and uniform in layout. During installation, due to the high rigidity of the second pipe section 402, the second pipe section 402 can be accurately and firmly fixed at the preset position of the energy storage battery cabinet 9 by means of a bracket, a buckle, etc., and is not easy to move or shake. That is, by arranging the second pipe section 402 as a hard pipe, the refrigerant pipeline is more convenient and easier to arrange in the energy storage battery cabinet 9.

[0053] Further, on the basis that the first pipe section 401 is a hose, in some preferred embodiments, the first pipe section 401 is sealingly connected to the refrigerant circuit of the direct cooling machine 1 through a second quick plug connector 6 (the second quick plug connector 6 refers to a connection structure capable of achieving quick connection between different pipelines by plugging, and the specific structure of the second quick plug connector 6 can be referred to below); and / or the first pipe section 401 is sealingly connected to the second pipe section 402 through a third quick plug connector 5 (the third quick plug connector 5 refers to a connection structure capable of achieving quick connection between different pipelines by plugging, and the specific structure of the third quick plug connector 5 can be referred to below). By arranging the quick plug connector (i.e., the second quick plug connector 6 and / or the third quick plug connector 5, hereinafter the same), during the process of assembling the direct cooling machine 1 to the energy storage battery cabinet 9, the primary pipe 4 in the refrigerant pipeline can be directly plugged to the direct cooling machine 1. In this way, the connection process of the refrigerant pipeline and the refrigerant circuit of the direct cooling machine 1 can be further simplified, thereby further improving the assembly efficiency.

[0054] In a preferred exemplary embodiment, the first pipe section 401 is sealingly connected to the refrigerant circuit of the direct cooling machine 1 through the second quick connector 6, and the first pipe section 401 is sealingly connected to the second pipe section 402 through the third quick connector 5. In this arrangement, since the first pipe section 401 and the refrigerant circuit of the direct cooling machine 1 are connected through the quick connector, and the first pipe section 401 and the second pipe section 402 are connected through the quick connector, no matter which assembly sequence is adopted (i.e., the direct cooling machine 1 is first installed in the energy storage battery cabinet 9, and then the main pipe 4 is connected to the refrigerant circuit of the direct cooling machine 1; or, the direct cooling machine 1 is first connected to the first pipe section 401 of the main pipe 4, and then the direct cooling machine 1 is assembled in the energy storage battery cabinet 9, and the first pipe section 401 and the second pipe section 402 of the main pipe 4 are connected), high assembly efficiency can be ensured.

[0055] Further, in some embodiments, the first quick connector 8, the second quick connector 6, and the third quick connector 5 each include a male head and a female head, wherein the male head includes a first connecting section and a second connecting section connected to each other, the female head includes a third connecting section and a fourth connecting section connected to each other, and the fourth connecting section is capable of being sleeved on the second connecting section and sealingly connected to the second connecting section.

[0056] In the implementation process, the first connecting section of the first quick connector 8 is connected to the refrigerant circuit of the heat exchange plate 3, and the third connecting section of the first quick connector 8 is connected to the end of the shunt pipe 7 close to the heat exchange plate 3; or the first connecting section of the first quick connector 8 is connected to the end of the shunt pipe 7 close to the heat exchange plate 3, and the third connecting section of the first quick connector 8 is connected to the refrigerant circuit of the heat exchange plate 3; in this way, when connecting the refrigerant circuit and the refrigerant circuit of the heat exchange plate 3, only the second connecting section of the first quick connector 8 needs to be inserted into the fourth connecting section of the first quick connector 8. When the first-stage pipe section 401 is connected to the refrigerant circuit of the direct cooling machine 1 through the second quick connector 6, the first connecting section of the second quick connector 6 is connected to the refrigerant circuit of the direct cooling machine 1, and the third connecting section of the second quick connector 6 is connected to the end of the first-stage pipe section 401 close to the direct cooling machine 1; or the first connecting section of the second quick connector 6 is connected to the end of the first-stage pipe section 401 close to the direct cooling machine 1, and the third connecting section of the second quick connector 6 is connected to the refrigerant circuit of the direct cooling machine 1. In this way, when connecting the refrigerant circuit and the refrigerant circuit of the direct cooling machine 1, only the second connecting section of the second quick connector 6 needs to be inserted into the fourth connecting section of the second quick connector 6. Similarly, when the first-stage pipe section 401 is connected to the second-stage pipe section 402 through the third quick connector 5, the first connecting section of the third quick connector 5 is connected to the end of the first-stage pipe section 401 away from the direct cooling machine 1, and the third connecting section of the third quick connector 5 is connected to the end of the second-stage pipe section 402 close to the first-stage pipe section 401; or the first connecting section of the third quick connector 5 is connected to the end of the second-stage pipe section 402 close to the first-stage pipe section 401, and the third connecting section of the third quick connector 5 is connected to the end of the first-stage pipe section 401 away from the direct cooling machine 1; in this way, when connecting the first-stage pipe section 401 and the second-stage pipe section 402, only the second connecting section of the third quick connector 5 needs to be inserted into the fourth connecting section of the third quick connector 5.

[0057] It should be noted that the first connecting section and the second connecting section in the above can be two different parts of an integrally formed structure, or the first connecting section and the second connecting section can be two different structures fixedly connected by welding or the like. Similarly, the third connecting section and the fourth connecting section in the above can be two different parts of an integrally formed structure, or the third connecting section and the fourth connecting section can be two different structures fixedly connected by welding or the like.

[0058] Further, in some embodiments, a reinforcing structure for reinforcing the connection is further arranged between the male head and the female head of the first quick connector 8, and / or between the male head and the female head of the second quick connector 6, and / or between the male head and the female head of the third quick connector 5, for example:

[0059] In some embodiments, the male end of the first quick-connect connector 8 is provided with a first radially outwardly protruding flange, and the female end of the first quick-connect connector 8 is provided with a second radially outwardly protruding flange. When the male end of the first quick-connect connector 8 is plugged into the female end of the first quick-connect connector 8, the first flange and the second flange can be connected by a threaded structure, thereby enhancing the connection strength between the male and female ends. The threaded structure used to achieve the connection between the first flange and the second flange can specifically be a screw, etc.

[0060] In other embodiments, the second quick-connect connector 6 and / or the third quick-connect connector 5 are also provided with a reinforcement structure, and the reinforcement structure includes a fifth connecting segment and a threaded sleeve, wherein the fifth connecting segment is provided on the male head and is located between the first connecting segment and the second connecting segment, and an external thread is provided on the circumferential outer side of the fifth connecting segment, the threaded sleeve is rotatably fixed to the fourth connecting segment, and the inner wall of the threaded sleeve is provided with an internal thread matching the above-mentioned external thread, and after the fourth connecting segment is inserted into the second connecting segment, the threaded sleeve can be tightened onto the fifth segment, thereby enhancing the connection strength between the male head and the female head.

[0061] like Figures 1-3 as well as Figure 5 As shown, in some application environments, the primary pipe section 401 is sealedly connected to the secondary pipe section 402 via a quick-connect connector, and the primary pipe section 401 and the secondary pipe section 402 have different extension directions. It is understandable that, as described above, the primary pipe section 401 is a hose, and the hose may be squeezed or stretched during the bending process, causing the hose wall to become thinner or cracked. These damages may become potential risk points for refrigerant leakage. In addition, after the hose is bent, the stress distribution inside it will change, which may cause fatigue damage to the hose during long-term use. This damage will gradually accumulate and eventually cause the hose to rupture or fail. Furthermore, the hose itself has a certain degree of elasticity, and after bending, it will generate stress inside to cause it to recover. This stress acts on the connection points at both ends of the primary pipe section 401, affecting the sealing of the connection points. For the above reasons, during the engineering implementation process, the bending amplitude of the hose should be minimized as much as possible, or the number of bends of the hose should be reduced. Based on this, in some embodiments, an angle is provided between the first connecting section and the second connecting section in the third quick-connect connector 5 , and / or an angle is provided between the third connecting section and the fourth connecting section in the third quick-connect connector 5 .

[0062] As mentioned above, the first pipe section 401 and the refrigerant circuit of the direct cooler 1 need to be sealed, and the first pipe section 401 and the second pipe section 402 also need to be sealed. Based on this, in some embodiments, a sealing groove is arranged on the outer side of the circumference of the second connecting section, a sealing ring (which can be an O-shaped rubber ring) is arranged in the sealing groove, and the sealing ring can abut against the inner wall of the fourth connecting section and be compressed under the action of the second connecting section and the fourth connecting section to realize the sealed connection between the second connecting section and the fourth connecting section. In this arrangement, after the second connecting section is inserted into the fourth connecting section, the sealing ring will be compressed, which can realize the sealing between the second connecting section and the fourth connecting section on the one hand, and on the other hand, a large friction force can be generated between the sealing ring and the inner wall of the fourth connecting section, thereby realizing the preliminary fixation between the male head and the female head.

[0063] Further, the sealing groove is provided with a plurality of sealing grooves, and the plurality of sealing grooves are distributed in the axial direction of the second connecting section. In this way, the sealed connection between the male head and the female head can be provided with multiple sealing guarantees, that is, even if one of the sealing rings is damaged or fails, the other sealing ring can still continue to function to prevent refrigerant leakage. At the same time, by increasing the number of sealing rings, the risk of leakage due to poor sealing can be significantly reduced, thereby improving the sealing between the male head and the female head. In an exemplary embodiment, two sealing grooves are provided, and the two sealing grooves are distributed in the axial direction of the second connecting section. In this way, the purpose of improving the sealing can be achieved, and at the same time, the problem that the second connecting section cannot be inserted into the fourth connecting section due to excessive resistance during the insertion of the second connecting section into the fourth connecting section can be avoided.

[0064] In addition, the present application also provides a direct cooler 1, which is internally provided with a refrigerant circuit, and the refrigerant circuit can be connected with the above-mentioned refrigerant pipeline. It should be noted that when the direct cooler 1 is connected with the above-mentioned refrigerant pipeline, the beneficial effects brought by the refrigerant pipeline are described above, and the present application will not be repeated here.

[0065] In addition, the application further provides an energy storage container, which comprises an energy storage battery 2, a direct cooling machine 1, a heat exchange plate 3 and a refrigerant pipeline assembly. The direct cooling machine 1 and the heat exchange plate 3 are both internally provided with a refrigerant loop, and the heat exchange plate 3 is in heat conduction connection with the energy storage battery 2. The refrigerant pipeline assembly comprises a first refrigerant pipeline and a second refrigerant pipeline. The first refrigerant pipeline is in communication with a liquid outlet of the refrigerant loop of the direct cooling machine 1 and a liquid inlet of the refrigerant loop of the heat exchange plate 3, and the second refrigerant pipeline is in communication with a liquid inlet of the refrigerant loop of the direct cooling machine 1 and a liquid outlet of the refrigerant loop of the heat exchange plate 3. During the operation of the above-mentioned energy storage container, the refrigerant in the refrigerant loop of the direct cooling machine 1 flows into the first refrigerant pipeline from the liquid outlet, and then flows into the refrigerant loop of the heat exchange plate 3 through the first refrigerant pipeline. After entering the refrigerant loop of the heat exchange plate 3, the refrigerant exchanges heat with the energy storage battery 2, and then flows into the second refrigerant pipeline through the liquid outlet of the refrigerant loop of the heat exchange plate 3, and then flows into the refrigerant loop of the direct cooling machine 1 through the second refrigerant pipeline, and is heated or cooled in the direct cooling machine 1. In this way, the circulation of the refrigerant between the direct cooling machine 1 and the heat exchange plate 3 is realized. During the engineering application, the temperature control of the energy storage battery 2 can be realized by controlling the temperature of the refrigerant discharged from the direct cooling machine 1 and / or controlling the flow of the refrigerant.

[0066] It should be noted that the first refrigerant pipeline and the second refrigerant pipeline in the embodiment are both the above-mentioned refrigerant pipelines. Therefore, the beneficial effects of the energy storage container brought by the refrigerant pipelines are described above, and the application will not be described here.

[0067] Further, as shown in Figure 3 the energy storage container in the embodiment of the application comprises an energy storage battery cabinet 9, and the energy storage battery 2, the direct cooling machine 1, the heat exchange plate 3 and the refrigerant pipeline assembly are all arranged in the interior of the energy storage battery cabinet 9.

[0068] Further, in some embodiments, the flow dividers 10 in the first refrigerant pipeline and the flow dividers 10 in the second refrigerant pipeline are distributed in a staggered manner. That is, the positions at which the main pipes 4 in the first refrigerant pipeline are connected with the flow dividing pipes 7 are distributed in a staggered manner with the positions at which the main pipes 4 in the second refrigerant pipeline are connected with the flow dividing pipes 7. In this arrangement, it is beneficial to distinguish the plurality of flow dividing pipes 7 in the first refrigerant pipeline from the plurality of flow dividing pipes 7 in the second refrigerant pipeline, and at the same time, it is also possible to avoid the plurality of flow dividing pipes 7 in the first refrigerant pipeline from interfering with the plurality of flow dividing pipes 7 in the second refrigerant pipeline, thereby facilitating installation.

[0069] The above describes the basic principles of the present application in combination with specific embodiments, but it should be noted that the advantages, benefits, effects and the like mentioned in the present application are only examples and are not limiting, and these advantages, benefits, effects and the like cannot be considered as necessary for each embodiment of the present application. In addition, the above specific details disclosed are only for the purpose of illustration and understanding, and are not limiting, and the above details do not limit the present application to be necessarily implemented with the above specific details.

[0070] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply the connection, arrangement, configuration shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words, mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0071] It should also be noted that in the devices, equipment and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present application.

[0072] The above description of the disclosed aspects is provided so that any person skilled in the art can make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0073] It should be understood that the adjectives "first", "second", "third", "fourth", "fifth" and "sixth" used in the embodiments of the present application are only used for clearer description of the technical solutions, and cannot be used to limit the protection scope of the present application.

[0074] The above description has been given for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A refrigerant pipeline, characterized in that: The refrigerant circuit is suitable for connecting a refrigerant circuit of a direct cooling machine and a refrigerant circuit of a heat exchange plate, and the refrigerant circuit comprises: a main pipe comprising a first end and a second end, the first end being in sealed connection with the refrigerant circuit of the direct cooling machine; a shunt pipe comprising a third end and a fourth end, the third end being in sealed connection with the second end, and the fourth end being in sealed connection with the refrigerant circuit of the heat exchange plate; wherein the shunt pipe is a flexible metal pipe, and the shunt pipe is in sealed connection with the refrigerant circuit of the heat exchange plate through a first quick plug connector.

2. The refrigerant line of claim 1, wherein, The second end is in sealed connection with different third ends of the shunt pipes through a shunt, and the shunt pipes are all capillary tubes.

3. The refrigerant line of claim 1, wherein, The shunt pipe is a soft red copper pipe.

4. The refrigerant line of claim 1, wherein The main pipe comprises a plurality of pipe segments in communication, and at least the pipe segment for connecting the refrigerant circuit of the direct cooling machine is a flexible pipe.

5. The refrigerant circuit according to claim 4, wherein the main pipe comprises a primary pipe segment and a secondary pipe segment, one end of the primary pipe segment being in sealed connection with the refrigerant circuit of the direct cooling machine, the other end of the primary pipe segment being in sealed connection with the secondary pipe segment, and one end of the secondary pipe segment away from the primary pipe segment being in sealed connection with the shunt pipe; wherein the primary pipe segment is in sealed connection with the refrigerant circuit of the direct cooling machine through a second quick plug connector, and / or the primary pipe segment is in sealed connection with the secondary pipe segment through a third quick plug connector.

6. The refrigerant line set of claim 5, wherein, The first quick plug connector, the second quick plug connector and the third quick plug connector all comprise: a male head comprising a first connecting segment and a second connecting segment connected with each other; a female head comprising a third connecting segment and a fourth connecting segment connected with each other, the fourth connecting segment being capable of being sleeved on the second connecting segment and being in sealed connection with the second connecting segment; wherein one of the first connecting segment of the first quick plug connector and the third connecting segment of the first quick plug connector is in sealed connection with the refrigerant circuit of the heat exchange plate, and the other is in sealed connection with one end of the shunt pipe close to the heat exchange plate; one of the first connecting segment of the second quick plug connector and the third connecting segment of the second quick plug connector is in sealed connection with the refrigerant circuit of the direct cooling machine, and the other is in sealed connection with one end of the primary pipe segment close to the direct cooling machine; one of the first connecting segment of the third quick plug connector and the third connecting segment of the third quick plug connector is in sealed connection with one end of the primary pipe segment away from the direct cooling machine, and the other is in sealed connection with one end of the secondary pipe segment close to the primary pipe segment.

7. The refrigerant line set of claim 6, wherein, The male head of the first quick plug connector is provided with a first convex edge protruding radially outward, the female head of the first quick plug connector is provided with a second convex edge protruding radially outward, and when the male head of the first quick plug connector is plugged into the female head of the first quick plug connector, the first convex edge and the second convex edge can be connected through a thread structure.

8. The refrigerant line of claim 6, wherein, The circumferential outer side of the second connecting segment is provided with a plurality of sealing grooves, the sealing grooves are distributed at intervals in the axial direction of the second connecting segment, and a sealing ring is arranged in each of the sealing grooves, and the sealing ring can abut against the inner wall of the fourth connecting segment and be compressed under the action of the second connecting segment and the fourth connecting segment.

9. A direct cooler characterized by A refrigerant circuit is provided and can be sealingly connected with the refrigerant pipe of any one of claims 1-8.

10. An energy storage container, characterized by Comprise: An energy storage battery; A direct cooling machine according to claim 9; A heat exchange plate provided with a refrigerant circuit and heat-conductively connected with the energy storage battery; A refrigerant pipe assembly comprising a first refrigerant pipe and a second refrigerant pipe, the first refrigerant pipe connecting a liquid outlet of the refrigerant circuit of the direct cooling machine and a liquid inlet of the refrigerant circuit of the heat exchange plate, the second refrigerant pipe connecting a liquid inlet of the refrigerant circuit of the direct cooling machine and a liquid outlet of the refrigerant circuit of the heat exchange plate; and the first refrigerant pipe and the second refrigerant pipe are both the refrigerant pipe of any one of claims 1-8.

11. The energy storage container of claim 10, wherein, The flow divider in the first refrigerant pipe and the flow divider in the second refrigerant pipe are distributed in a staggered manner.

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