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 main pipe comprises a plurality of communicated pipe sections, and at least the pipe section used for being connected with a refrigerant loop of the direct cooling machine is a hose. According to the arrangement mode, when the position of the installed direct cooling machine deviates from the preset installation position, it can be ensured that the first end of the main pipe can be connected with the refrigerant loop of the direct cooling machine by adjusting the position of the first end of the main pipe, then repeated adjustment of the installation position of the direct cooling machine can be avoided, and the installation efficiency is improved.

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 batteries). During engineering installation, both the direct cooling machine and the refrigerant pipeline need to have high assembly accuracy, otherwise the refrigerant circuit of the direct cooling machine cannot be connected to the refrigerant circuit of the heat exchange plate, which also requires repeated adjustment of the installation position of the direct cooling machine during installation, thereby affecting the engineering installation efficiency. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a refrigerant pipeline, which is improved to enable one end of the pipeline connected to the direct cooling machine to move position as needed, thereby increasing the allowable range of engineering installation errors and effectively improving the engineering installation efficiency. In addition, the present application also provides a direct cooling machine capable of being sealed and connected with the above refrigerant pipeline, and an energy storage container comprising the above refrigerant pipeline.

[0004] To achieve the above purpose, the present application provides the following technical solutions:

[0005] A refrigerant pipeline is suitable for connecting the refrigerant circuit of a direct cooling machine and the refrigerant circuit of a heat exchange plate, and comprises:

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

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

[0008] wherein the main pipe comprises a plurality of pipe sections connected in series, and at least the pipe section for connecting the refrigerant circuit of the direct cooling machine is a flexible pipe.

[0009] Optionally, the main pipe comprises:

[0010] a first-level pipe section sealed and connected at one end with the refrigerant circuit of the direct cooling machine;

[0011] a second-level pipe section sealed and connected at one end with the first-level pipe section and at the other end with the shunt pipe.

[0012] Optionally, the second-level pipe section is a rigid pipe.

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

[0014] Optionally, the first quick connector and the second quick 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] wherein one of the first connecting section of the first quick connector and the third connecting section of the first quick connector is sealingly connected with the refrigerant circuit of the direct cooling machine, and the other is sealingly connected with one end of the primary pipe section close to the direct cooling machine;

[0018] one of the first connecting section of the second quick connector and the third connecting section of the second quick connector is sealingly connected with one end of the primary pipe section away from the direct cooling machine, and the other is sealingly connected with one end of the secondary pipe section close to the primary pipe section.

[0019] Optionally, the primary pipe section is sealingly connected with the secondary pipe section through the second quick connector, and the primary pipe section and the secondary pipe section have different extension directions:

[0020] the first connecting section of the second quick connector and the second connecting section have an included angle therebetween, and / or the third connecting section of the second quick connector and the fourth connecting section have an included angle therebetween.

[0021] Optionally, a sealing groove is arranged on the outer circumference of the second connecting section, a sealing ring is arranged in the sealing groove, and the sealing ring is capable of abutting against the inner wall of the fourth connecting section and being compressed under the action of the second connecting section and the fourth connecting section to realize the sealing connection between the second connecting section and the fourth connecting section.

[0022] Optionally, a plurality of sealing grooves are arranged, and the plurality of sealing grooves are spaced apart in the axial direction of the second connecting section.

[0023] A direct cooling machine is provided with a refrigerant circuit, and the refrigerant circuit is sealingly connectable with the refrigerant pipeline of any one of the above.

[0024] An energy storage container comprises:

[0025] an energy storage battery;

[0026] The straight cooling machine is the straight cooling machine described above;

[0027] The heat exchange plate is provided with a refrigerant circuit and is in heat conduction connection with the energy storage battery;

[0028] The refrigerant pipeline assembly comprises a first refrigerant pipeline and a second refrigerant pipeline, the first refrigerant pipeline is connected with a liquid outlet of the refrigerant circuit of the straight cooling machine and a liquid inlet of the refrigerant circuit of the heat exchange plate, the second refrigerant pipeline is connected with a liquid inlet of the refrigerant circuit of the straight 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 the refrigerant pipelines described above.

[0029] Optionally, the position where the main pipe in the first refrigerant pipeline is connected with the shunt pipe is a first connection position;

[0030] The position where the main pipe in the second refrigerant pipeline is connected with the shunt pipe is a second connection position;

[0031] The first connection position and the second connection position are distributed in a staggered manner.

[0032] The refrigerant pipeline provided in the application comprises a main pipe and a shunt pipe, and the pipe section of the main pipe for connecting the refrigerant circuit of the straight cooling machine is a flexible pipe. In this arrangement, when the straight cooling machine is assembled in the energy storage battery cabinet, the main pipe of the refrigerant pipeline is only needed to be connected with the refrigerant circuit of the straight cooling machine after the straight cooling machine is fixed at the mounting position of the energy storage battery cabinet. Since the pipe section of the main pipe for connecting the refrigerant circuit of the straight cooling machine is a flexible pipe, the first end of the main pipe is a free end before the refrigerant circuit of the straight cooling machine is connected. That is, the position of the first end of the main pipe can be freely adjusted before the refrigerant circuit of the straight cooling machine is connected. Therefore, when the position of the straight cooling machine deviates from the preset mounting position after the installation of the straight cooling machine is completed, the position of the first end of the main pipe can be adjusted to ensure that the first end of the main pipe can be connected with the refrigerant circuit of the straight cooling machine, thereby avoiding repeated adjustment of the mounting position of the straight cooling machine and improving the installation efficiency. At the same time, the above arrangement can also avoid the problem that the refrigerant circuit of the straight cooling machine and the refrigerant circuit of the heat exchange plate cannot be connected due to the production error of the assembly structure of the straight cooling machine and / or the production error of the assembly structure of the energy storage battery cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the 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 application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0034] Figure 1A structure schematic view of a refrigerant pipeline in a connected state according to an embodiment of the present application;

[0035] Figure 2 A structure schematic view of a refrigerant pipeline in a connected state according to an embodiment of the present application; Figure 1

[0036] Figure 3 A structure schematic view of an energy storage container according to an embodiment of the present application, which only includes part of an energy storage battery cabinet;

[0037] Figure 4 A structure schematic view of an energy storage container according to an embodiment of the present application, which only includes part of an energy storage battery cabinet; Figure 2

[0038] Figure 5 A structure schematic view of an energy storage container according to an embodiment of the present application, which only includes part of an energy storage battery cabinet; Figure 2 In the energy storage container according to an embodiment of the present application,

[0039] Figures 1-5

[0040] 1-direct cooling machine, 2-energy storage battery, 3-heat exchange plate, 4-main pipe, 5-second quick plug connector, 6-first quick plug connector, 7-shunt pipe, 8-third quick plug connector, 9-energy storage battery cabinet, 10-shunt;

[0041] 401-first pipe section, 402-second pipe section. DETAILED DESCRIPTION

[0042] 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.

[0043] 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.

[0044] As shown in FIG. 1, the energy storage container according to an embodiment of the present application includes a direct cooling machine 1, an energy storage battery cabinet 9, and a shunt 10. Figures 1-5 ​​​​As shown, the refrigerant pipeline in the embodiment of the present application includes a main pipe 4 and a branch pipe 7, wherein the main pipe 4 includes a first end and a second end, and the branch 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 branch pipe 7, and the fourth end of the branch 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 branch 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 branch 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 main pipe 4 includes a plurality of pipe segments, and the plurality of pipe segments are in communication with each other, wherein 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 (such as pressure requirements) of refrigerant circulation. For example, it can be a flexible pipe for automotive air conditioning.

[0045] The energy storage container using the above refrigerant pipeline can be used to assemble the direct cooling machine 1 in the energy storage battery cabinet 9. 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. In this way, 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.

[0046] In addition, as described above, the refrigerant pipeline in the present embodiment includes the distribution pipes 7. In this arrangement, by providing a plurality of distribution pipes 7 and connecting the plurality of distribution pipes 7 to the refrigerant circuits of different heat exchange plates 3 respectively, the refrigerant circuit of the direct cooling machine 1 can be connected to the refrigerant circuits of a plurality of different heat exchange plates 3 simultaneously. Since the pipeline structure for realizing distribution is located outside the direct cooling machine 1, during subsequent maintenance, the pipeline structure for realizing distribution can be directly observed by opening the energy storage battery cabinet 9, thereby facilitating subsequent maintenance. At the same time, arranging the pipeline structure for realizing distribution outside the direct cooling machine 1 eliminates the need to arrange the pipeline structure for realizing distribution 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.

[0047] Further, the main pipe 4 is connected to the distribution pipes 7 through the flow distributor 10, and the distribution pipes 7 are capillary tubes. In this arrangement, the refrigerant in the main pipe 4 is distributed evenly to different distribution pipes 7 through the distribution of the flow distributor 10. Since the distribution pipes 7 are capillary tubes, the flow rate of the refrigerant entering the capillary tubes increases, thereby causing the refrigerant to have a certain pressure drop in the capillary tubes. This reduces the influence of uneven flow resistance of the refrigerant when evaporating in the multiple parallel heat exchange plates, and improves the uniformity of refrigerant distribution.

[0048] In a preferred embodiment, the flow distributor 10 is a Venturi flow distributor 10. Compared with ordinary flow distributors 10, the Venturi flow distributor 10 has higher distribution accuracy, and can reduce the energy consumption inside the system, thereby achieving higher energy efficiency while ensuring the accuracy of fluid distribution. At the same time, the Venturi distributor cooperates with the speed increasing effect of the capillary tube to further improve the uniformity of refrigerant distribution. Specifically, in the Venturi flow distributor 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 position is lower. Since the design of the Venturi flow distributor 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 distribution channel is also more consistent, which helps to achieve more uniform distribution.

[0049] It should be noted that the capillary tube in the above refers to a thin tube with a small flow area, so that the refrigerant entering the distribution pipe 7 through the flow distributor 10 can increase in speed. For example, the capillary tube in the above 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.

[0050] In some 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, that is, 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, that is, 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.

[0051] It should be understood that in the related art, the liquid inlet and the liquid outlet of the refrigerant circuit of some direct coolers 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 inconvenient installation problem caused by the arrangement position of the liquid inlet and the liquid outlet.

[0052] 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. 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.

[0053] On the basis of the primary pipe 4 including 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). 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 or the like, 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.

[0054] Further, on the basis of the first pipe section 401 being 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 first quick plug connector 6 (the first 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 first 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 second quick plug connector 5 (the second 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 second quick plug connector 5 can be referred to below). By arranging the quick plug connector (i.e., the first quick plug connector 6 and / or the second 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.

[0055] 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 first quick connector 6, and the first pipe section 401 is sealingly connected to the second pipe section 402 through the second quick connector 5. In this arrangement, since the first pipe section 401 is connected to the refrigerant circuit of the direct cooling machine 1 and the first pipe section 401 is connected to the second pipe section 402 through the quick connectors, no matter which sequence is adopted in the process of assembling the direct cooling machine 1 to the energy storage battery cabinet 9 (i.e., the sequence of first installing the direct cooling machine 1 to the energy storage battery cabinet 9, and then connecting the main pipe 4 to the refrigerant circuit of the direct cooling machine 1; or the sequence of first connecting the first pipe section 401 of the main pipe 4 to the direct cooling machine 1, and then assembling the direct cooling machine 1 to the energy storage battery cabinet 9, and connecting the first pipe section 401 and the second pipe section 402 of the main pipe 4), a high assembly efficiency can be ensured.

[0056] Further, in some embodiments, the first quick connector 6 and the second 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.

[0057] In the process of implementation, when the first pipe section 401 is sealingly connected to the refrigerant circuit of the direct cooling machine 1 through the first quick connector 6, the first connecting section of the first quick connector 6 is sealingly connected to the refrigerant circuit of the direct cooling machine 1, and the third connecting section of the first quick connector 6 is sealingly connected to the end of the first pipe section 401 close to the direct cooling machine 1; or the first connecting section of the first quick connector 6 is sealingly connected to the end of the first pipe section 401 close to the direct cooling machine 1, and the third connecting section of the first quick connector 6 is sealingly connected to the refrigerant circuit of the direct cooling machine 1. In this way, when connecting the refrigerant circuit of the direct cooling machine 1 and the refrigerant pipe, it is only necessary to insert the second connecting section of the first quick connector 6 into the fourth connecting section of the first quick connector 6. Similarly, when the first pipe section 401 is sealingly connected to the second pipe section 402 through the second quick connector 5, the first connecting section of the second quick connector 5 is sealingly connected to the end of the first pipe section 401 away from the direct cooling machine 1, and the third connecting section of the second quick connector 5 is sealingly connected to the end of the second pipe section 402 close to the first pipe section 401; or the first connecting section of the second quick connector 5 is sealingly connected to the end of the second pipe section 402 close to the first pipe section 401, and the third connecting section of the second quick connector 5 is sealingly connected to the end of the first pipe section 401 away from the direct cooling machine 1. In this way, when connecting the first pipe section 401 and the second pipe section 402, it is only necessary to insert the second connecting section of the second quick connector 5 into the fourth connecting section of the second quick connector 5.

[0058] 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.

[0059] Further, in some embodiments, a reinforcing structure for reinforcing the connection is further arranged between the male head and the female head, the reinforcing structure comprising a fifth connecting section and a threaded sleeve, wherein the fifth connecting section is arranged on the male head and located between the first connecting section and the second connecting section, and the fifth connecting section is provided with external threads on the outer side of the circumference, the threaded sleeve is rotatably fixed on the fourth connecting section, and the inner wall of the threaded sleeve is provided with internal threads matched with the external threads, and after the fourth connecting section is inserted into the second connecting section, the threaded sleeve can be screwed onto the fifth connecting section, thereby enhancing the connection strength between the male head and the female head.

[0060] As shown in FIGS. 1 and 2, the first connecting section and the second connecting section of the second quick connector 5 are arranged to have an included angle therebetween. Figures 1-3 As shown in FIGS. 1 and 2, the first connecting section and the second connecting section of the second quick connector 5 are arranged to have an included angle therebetween. Figure 5 As shown in FIGS. 1 and 2, the first connecting section and the second connecting section of the second quick connector 5 are arranged to have an included angle therebetween. As shown in FIGS. 1 and 2, the first connecting section and the second connecting section of the second quick connector 5 are arranged to have an included angle therebetween.

[0061] As mentioned above, the first pipe section 401 and the refrigerant circuit of the direct cooling machine 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 can generate a large friction force between the sealing ring and the inner wall of the fourth connecting section on the other hand, thereby realizing the preliminary fixation between the male head and the female head.

[0062] 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, the sealing groove is provided with two sealing grooves, 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.

[0063] In some embodiments, the shunt pipe 7 is connected with the heat exchange plate 3 through the third quick plug connector 8, so as to facilitate the sealed connection between the shunt pipe 7 and the heat exchange plate 3. It should be noted that, in addition to the above-mentioned reinforcing structure, the third quick plug connector 8 has the same structure as the first quick plug connector 6 and the second quick plug connector 5. Therefore, for the specific structure of the third quick plug connector 8, please refer to the first quick plug connector 6 and the second quick plug connector 5 in the above.

[0064] In addition, the present application also provides a direct cooling machine 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 cooling machine 1 is connected with the above-mentioned refrigerant pipeline, the beneficial effects brought by the refrigerant pipeline are described in detail in the above, which will not be repeated here.

[0065] In addition, the energy storage container provided in the embodiment of the present application comprises an energy storage battery 2, a direct cooling machine 1, a heat exchange plate 3 and a refrigerant pipeline assembly. The refrigerant pipeline assembly comprises a first refrigerant pipeline and a second refrigerant pipeline. The first refrigerant pipeline is connected to the liquid outlet of the refrigerant loop of the direct cooling machine 1 and the liquid inlet of the refrigerant loop of the heat exchange plate 3. The second refrigerant pipeline is connected to the liquid inlet of the refrigerant loop of the direct cooling machine 1 and the liquid outlet of the refrigerant loop of the heat exchange plate 3. During the operation of the 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 from 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. The refrigerant 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 the refrigerant pipelines described above. Therefore, the beneficial effects of the energy storage container brought by the refrigerant pipelines are described above, and will not be repeated here.

[0067] Further, as shown in Figure 3 the energy storage container in the embodiment of the present 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 arranged in the interior of the energy storage battery cabinet 9.

[0068] Further, in some embodiments, the position where the main pipe 4 in the first refrigerant pipeline is connected to the shunt pipe 7 is the first connection position, and the position where the main pipe 4 in the second refrigerant pipeline is connected to the shunt pipe 7 is the second connection position. The first connection position and the second connection position are distributed in a staggered manner. In this arrangement, it is convenient to distinguish the plurality of shunt pipes 7 in the first refrigerant pipeline from the plurality of shunt pipes 7 in the second refrigerant pipeline, and it is also possible to avoid the plurality of shunt pipes 7 in the first refrigerant pipeline interfering with the plurality of shunt pipes 7 in the second refrigerant pipeline, thereby facilitating installation. In an exemplary embodiment, as shown in Figure 4 the shunt pipe 7 and the main pipe 4 are connected through a shunt 10, and the shunts 10 in the first refrigerant pipeline and the shunts 10 in the second refrigerant pipeline are distributed in a staggered manner.

[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 main pipe comprises a plurality of pipe sections in communication, and at least the pipe section for connecting the refrigerant circuit of the direct cooling machine is a flexible pipe.

2. The refrigerant line of claim 1, wherein, The main pipe comprises: a first pipe section in sealed connection with the refrigerant circuit of the direct cooling machine at one end; a second pipe section in detachable sealed connection with the first pipe section at one end and in sealed connection with the shunt pipe at the other end.

3. The refrigerant line of claim 2, wherein, The second pipe section is a rigid pipe.

4. The refrigerant circuit according to claim 2 or 3, wherein: the first pipe section is in sealed connection with the refrigerant circuit of the direct cooling machine through a first quick plug connector, and / or the first pipe section is in sealed connection with the second pipe section through a second quick plug connector.

5. The refrigerant line set of claim 4, wherein, The first quick plug connector and the second quick plug connector each comprise: a male head comprising a first connecting section and a second connecting section connected to each other; a female head comprising a third connecting section and a fourth connecting section connected to each other, the fourth connecting section being capable of being sleeved on the second connecting section and being in sealed connection with the second connecting section; wherein one of the first connecting section of the first quick plug connector and the third connecting section of the first 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 first pipe section close to the direct cooling machine; one of the first connecting section of the second quick plug connector and the third connecting section of the second quick plug connector is in sealed connection with one end of the first pipe section away from the direct cooling machine, and the other is in sealed connection with one end of the second pipe section close to the first pipe section.

6. The refrigerant circuit according to claim 5, wherein: the first pipe section is in sealed connection with the second pipe section through the second quick plug connector, and the first pipe section and the second pipe section have different extension directions: the first connecting section and the second connecting section of the second quick plug connector have an included angle therebetween, and / or the third connecting section and the fourth connecting section of the second quick plug connector have an included angle therebetween.

7. The refrigerant line set of claim 5, wherein, A sealing groove is provided on the outer circumference of the second connecting section, a sealing ring is arranged in the sealing groove, and the sealing ring is capable of abutting against the inner wall of the fourth connecting section and being compressed under the action of the second connecting section and the fourth connecting section to achieve sealed connection between the second connecting section and the fourth connecting section.

8. The refrigerant line of claim 7, wherein, A plurality of sealing grooves are provided, and the plurality of sealing grooves are spaced apart in the axial direction of the second connecting section.

9. A direct cooler characterized by A refrigerant circuit is provided, and the refrigerant circuit is capable of being in sealed connection with the refrigerant circuit according to any one of claims 1-8.

10. An energy storage container, characterized by comprise: a storage battery; a direct cooling machine according to claim 9; a heat exchange plate provided with a refrigerant circuit, and the heat exchange plate being in heat conduction connection with the storage battery; The refrigerant pipeline assembly comprises a first refrigerant pipeline and a second refrigerant pipeline, the first refrigerant pipeline is connected with a liquid outlet of a refrigerant loop of the direct cooler and a liquid inlet of a refrigerant loop of the heat exchange plate, the second refrigerant pipeline is connected with a liquid inlet of the refrigerant loop of the direct cooler and a liquid outlet of the refrigerant loop of the heat exchange plate, and the first refrigerant pipeline and the second refrigerant pipeline are both the refrigerant pipeline according to any one of claims 1-8.

11. The energy storage container of claim 10, wherein: a position where the main pipe in the first refrigerant pipeline is connected with the shunt pipe is a first connection position; a position where the main pipe in the second refrigerant pipeline is connected with the shunt pipe is a second connection position; wherein the first connection position and the second connection position are distributed in a staggered manner.

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