Joint device and cable system

Abstract

The utility model discloses a joint device and a cable system, and the joint device comprises a joint main body which is provided with an inner cavity, at least two cable interfaces communicated with the inner cavity, and an installation port communicated with the inner cavity; a gas container; the gas compensation unit comprises a shell, a gas pressure sensor and a controller; the shell penetrates through the mounting opening and seals the mounting opening, and the inner space of the shell is communicated with the inner cavity; the air pressure sensor is arranged in the shell; the air pump is arranged on the shell, the air pumping end of the air pump communicates with the air container, and the air outlet end communicates with the interior of the shell. And the air pressure sensor and the air pump are electrically connected with the controller. According to the connector device, when gas in the inner cavity of the connector body leaks, the gas compensation unit supplements gas to the inner cavity of the connector body in time, and more time can be won for maintenance personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of cable joints, in particular to a joint device and a cable system. Background Art

[0002] With the rapid development of the power industry and the continuous growth of power supply demand, the demand for cable intermediate joints and the technical requirements are becoming increasingly higher.

[0003] For some cable intermediate joints, inert insulating gas is filled into the cable intermediate joints to ensure the insulation of the connection structure between the cables. However, traditional cable intermediate joints are prone to leakage due to long-term use or other factors and cannot be replenished in time, which will cause the entire cable system to malfunction and have low reliability. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a connector device with high reliability.

[0005] The utility model also provides a cable system having the above connector device.

[0006] According to the first aspect of the present invention, the connector device includes: a connector body, the connector body having an inner cavity, at least two cable interfaces connected to the inner cavity, and an installation port connected to the inner cavity; a gas container; a gas compensation unit, the gas compensation unit including an outer shell, an air pressure sensor, an air pump and a controller; the outer shell is passed through the installation port and seals the installation port, and the internal space of the outer shell is connected to the inner cavity; the air pressure sensor is arranged inside the outer shell; the air pump is arranged in the outer shell, the air suction end of the air pump is connected to the gas container, and the air outlet end is connected to the interior of the outer shell; the air pressure sensor and the air pump are both electrically connected to the controller.

[0007] The connector device according to the embodiment of the present invention has at least the following beneficial effects:

[0008] After the cables are connected together using the connector device of the present invention, at least part of the inner cavity of the connector body is sealed, and the connection structure between the cables is located in the sealed space, and the sealed space is filled with insulating gas to ensure the electrical insulation effect. In the connector device of the present invention, the air pressure sensor can detect the air pressure in the inner cavity of the connector body in real time. When insulating gas is found to be leaking from the inner cavity of the connector body, the air pressure sensor will detect a decrease in the air pressure in the connector body. When the air pressure in the connector body is detected to be lower than a preset range, the information will be transmitted to the controller. The controller can control the air pump to start, so that the air pump draws the gas in the gas container into the inner cavity of the connector body, which plays a compensation role and has high reliability. It should be noted that when the air pressure value in the inner cavity of the connector body returns to the preset range, the controller controls the air pump to stop working. In addition, when the gas in the inner cavity of the connector body leaks, the gas compensation unit replenishes the inner cavity of the connector body in time, which can buy more time for maintenance personnel.

[0009] According to some embodiments of the present invention, a sealing ring is provided between the outer side wall of the shell and the wall of the installation opening.

[0010] According to some embodiments of the present invention, an outer side wall of the housing is provided with a mounting groove, and the sealing ring is disposed in the mounting groove.

[0011] According to some embodiments of the present invention, a hollow bracket is provided inside the housing, and the controller and / or the air pressure sensor is fixed on the bracket.

[0012] According to some embodiments of the present invention, the gas compensation unit further includes an alarm element disposed on the housing, and the alarm element is electrically connected to the controller.

[0013] According to some embodiments of the present invention, the shell includes an insertion portion and an exposure portion, the insertion portion is inserted into the inner cavity through the installation port, the exposure portion is exposed outside the connector body, and the alarm element is arranged on the outside of the exposure portion.

[0014] According to some embodiments of the present invention, the housing is further provided with an air outlet, and the gas compensation unit further includes an air release valve provided at the air outlet, and the air release valve is electrically connected to the controller.

[0015] According to some embodiments of the present invention, the connector body includes a middle compartment body and two side compartment bodies respectively arranged at both ends of the middle compartment body, and both side compartment bodies are provided with the cable interface.

[0016] According to some embodiments of the present invention, one of the side compartment bodies is defined as a first side compartment body, and the other side compartment body is defined as a second side compartment body. The cable interface of the first side compartment body is used for passing a first cable, and the cable interface of the second side compartment body is used for passing a second cable.

[0017] The inner cavity is provided with a first seal and a second seal. The first seal is used to be mounted on the outside of the first cable and separate the internal space of the first side warehouse body from the internal space of the middle warehouse body. The second seal is used to be mounted on the outside of the second cable and separate the internal space of the second side warehouse body from the internal space of the middle warehouse body.

[0018] According to an embodiment of the second aspect of the present invention, the cable system includes: the connector device as described above; at least two cables, and the at least two cables are passed through at least two cable interfaces in a one-to-one correspondence.

[0019] The cable system according to the embodiment of the present invention has at least the following beneficial effects:

[0020] In the cable system of the present invention, after the cables are connected together using a connector device, at least part of the inner cavity of the connector body is sealed, and the connection structure between the cables is located in the sealed space, and the sealed space is filled with insulating gas to ensure the electrical insulation effect. In the connector device of the present invention, the air pressure sensor can detect the air pressure in the inner cavity of the connector body in real time. When insulating gas is found to be leaking from the inner cavity of the connector body, the air pressure sensor will detect a decrease in the air pressure in the connector body. When it is detected that the air pressure in the connector body is lower than a preset range, the information will be transmitted to the controller. The controller can control the air pump to start, so that the air pump draws the gas in the gas container into the inner cavity of the connector body to play a compensation role. It should be noted that when the air pressure value in the inner cavity of the connector body returns to the preset range, the controller controls the air pump to stop working. In addition, when the gas in the inner cavity of the connector body leaks, the gas compensation unit promptly replenishes the inner cavity of the connector body, which can buy more time for maintenance personnel.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a structural diagram of a cable connector according to an embodiment of the present invention;

[0024] Figure 2This is a schematic structural diagram of a gas container and a gas compensation unit according to an embodiment of the present invention;

[0025] Figure 3 This is a structural schematic diagram of a connector body according to an embodiment of the present invention.

[0026] Figure Number:

[0027] 10. Cables;

[0028] 100, connector body; 110, middle housing; 120, first side housing; 130, second side housing; 140, stress adjustment member; 150, epoxy member; 160, first conductor; 170, second conductor;

[0029] 200. Gas containers;

[0030] 300, gas compensation unit; 310, housing; 311, insertion part; 312, exposed part; 320, air pressure sensor; 330, controller; 340, air pump; 341, air inlet pipe; 342, exhaust pipe; 350, alarm element; 360, air release valve; 370, battery; 380, bracket. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] like Figure 1 As shown, a connector device provided by an embodiment of the present invention includes a connector body 100, a gas container 200 and a gas compensation unit 300; the connector body 100 is used to connect different cables 10; the gas container 200 is used to load insulating gas, such as helium or sulfur hexafluoride; the gas compensation unit 300 can draw the gas in the gas container 200 into the connector body 100 to ensure the insulation effect inside the connector body 100.

[0035] The connector body 100 has an inner cavity and two cable interfaces communicating with the inner cavity.

[0036] It is understandable that the two cables 10 can be respectively inserted into the inner cavity of the connector body 100 through the two cable interfaces and connected in the inner cavity of the connector body 100 .

[0037] Specifically, the two cable interfaces are respectively located at two opposite ends of the connector body 100 ; of course, in other embodiments, the two cable interfaces may also be provided on two adjacent sides of the connector body 100 .

[0038] It should be noted that the number of cable interfaces of the connector body 100 may also be two or more. Connector bodies 100 with different numbers of cable interfaces can achieve the connection of different numbers of cables 10 .

[0039] The gas container 200 is used to load inert gas, which can be compressed gas or gas under normal pressure.

[0040] The joint body 100 further has a mounting port communicating with its inner cavity, and the gas compensation unit 300 can be mounted on the joint body 100 through the mounting port.

[0041] Combine Figure 1 and Figure 2Specifically, the gas compensation unit 300 includes a shell 310, an air pressure sensor 320, a controller 330 and an air pump 340; the shell 310 is passed through the installation port of the joint body 100 and seals the installation port, and the internal space of the shell 310 is connected to the inner cavity of the joint body 100; the air pressure sensor 320 is arranged inside the shell 310, for detecting the air pressure in the inner cavity of the joint body 100; the air pump 340 is arranged in the shell 310, the air suction end of the air pump 340 is connected to the gas container 200, and the air outlet end of the air pump 340 is connected to the interior of the shell 310; the air pressure sensor 320 and the air pump 340 are both electrically connected to the controller 330.

[0042] It is understandable that the housing 310 is used to provide an installation location for other components of the gas compensation unit 300, and the housing 310 is inserted into the installation port of the connector body 100, so that the installation port can be sealed to reduce the risk of gas leakage in the inner cavity of the connector body 100. The air pressure sensor 320 is arranged inside the housing 310. Because the interior of the housing 310 is connected to the inner cavity of the connector body 100, the air pressure detected by the air pressure sensor 320 is the air pressure in the inner cavity of the connector body 100. The air pump 340 is connected to the gas container 200 through the air inlet pipe 341, and the air outlet of the air pump 340 is connected to the interior of the housing 310 through the exhaust pipe 342. The air pump 340 can draw the gas in the gas container 200 into the inner cavity of the connector body 100, thereby providing insulation protection for the connection position of each cable 10. The input end of the controller 330 is electrically connected to the air pressure sensor 320, and the output end of the controller 330 is electrically connected to the air pump 340. The air pressure sensor 320 can input the detected air pressure data into the controller 330, and the controller 330 can control the start and stop of the air pump 340 according to the air pressure data input by the air pressure sensor 320.

[0043] It should be noted that the gas compensation unit 300 further includes a battery 370 disposed within the housing 310. The battery 370 is used to power components such as the controller 330 and the air pressure sensor 320. Of course, in other embodiments, each component may also have its own power supply.

[0044] After the cables 10 are connected together using the connector device of the present invention, at least part of the inner cavity of the connector body 100 is sealed, and the connection structure between the cables 10 is located in the sealed space, and the sealed space is filled with insulating gas to ensure the electrical insulation effect. In the connector device of the present invention, the air pressure sensor 320 can detect the air pressure in the inner cavity of the connector body 100 in real time. When insulating gas is found to be leaking from the inner cavity of the connector body 100, the air pressure sensor 320 will detect a decrease in the air pressure in the connector body 100. When it is detected that the air pressure in the connector body 100 is lower than a preset range, the information will be transmitted to the controller 330. The controller 330 can control the air pump 340 to start, so that the air pump 340 draws the gas in the gas container 200 into the inner cavity of the connector body 100 to play a compensatory role. It should be noted that when the air pressure value in the inner cavity of the connector body 100 returns to the preset range, the controller 330 controls the air pump 340 to stop working. In addition, when gas in the inner cavity of the joint body 100 leaks, the gas compensation unit 300 replenishes gas to the inner cavity of the joint body 100 in time, which can buy more time for maintenance personnel.

[0045] In some embodiments, a sealing ring is provided between the outer wall of the housing 310 and the wall of the installation opening of the connector body 100. This can further improve the sealing effect between the housing 310 and the wall of the installation opening and reduce the risk of gas leakage.

[0046] Among them, the outer wall of the shell 310 is provided with a mounting groove, and the sealing ring is pre-set in the mounting groove. After the gas compensation unit 300 is assembled to the joint body 100, the sealing ring is abutted against the wall of the mounting port, thereby achieving sealing.

[0047] Of course, in other embodiments, sealant may be applied between the outer wall of the housing 310 and the wall of the installation opening to achieve sealing.

[0048] In some embodiments, the air pump 340 is disposed on the outer wall of the shell 310, and the side wall of the shell 310 is provided with a first through hole, and the exhaust pipe 342 connected to the air pump 340 extends into the shell 310 through the first through hole, wherein the exhaust pipe 342 can also extend into the inner cavity of the connector body 100.

[0049] It should be noted that the exhaust pipe 342 and the hole wall of the first through hole are interference fit to achieve sealing, and a sealing ring or sealant can also be provided between the exhaust pipe 342 and the hole wall of the first through hole to achieve sealing.

[0050] Of course, in other embodiments, the air pump 340 may also be disposed within the housing 310. A second through hole is provided in the side wall of the housing 310, and an air inlet pipe 341 connected to the air pump 340 may extend through the second through hole in the housing 310 and connect to the gas container 200. The exhaust pipe 342 and the wall of the second through hole may be sealed by an interference fit. Alternatively, a sealing ring or sealant may be provided between the exhaust pipe 342 and the wall of the second through hole to achieve sealing.

[0051] In some embodiments, a hollow bracket 380 is provided inside the housing 310 , and the controller 330 and the air pressure sensor 320 are both fixed on the bracket 380 .

[0052] It will be appreciated that the bracket 380 is fixed to the interior of the housing 310, and the controller 330 and the air pressure sensor 320 are both located within the housing 310 and mounted on the bracket 380. The bracket 380 is used to support the controller 330 and the air pressure sensor 320. Because the bracket 380 has a hollow structure, the air pressure sensor 320 is not isolated in a sealed space, ensuring that the air pressure value detected by the air pressure sensor 320 is the air pressure value of the inner cavity of the connector body 100.

[0053] Of course, in other embodiments, the air pressure sensor 320 may be set only on the bracket 380, and the controller 330 may be fixed at other positions of the housing 310; or the controller 330 may be set only on the bracket 380, and the air pressure sensor 320 may be fixed at other positions, but it is necessary to ensure that the space where the air pressure sensor 320 is located is connected to the inner cavity of the connector body 100.

[0054] In some embodiments, the gas compensation unit 300 further includes an alarm element 350 disposed on the housing 310 , and the alarm element 350 is electrically connected to the controller 330 .

[0055] Specifically, the alarm element 350 is connected to the output end of the controller 330. When insulating gas is found to be leaking from the connector body 100, the air pressure sensor 320 will detect a decrease in the air pressure inside the connector body 100. When the air pressure is lower than the preset range, the air pressure sensor 320 will transmit the information to the controller 330. The controller 330 can control the alarm element 350 to issue an alarm based on the information, so that maintenance personnel can be informed that the connector device has a fault, so that the maintenance personnel can repair the connector device in time.

[0056] The alarm element 350 may be an alarm, or an alarm module that can send an alarm signal to a related device (such as a mobile phone, a computer, or a central control machine) in a wireless or wired manner.

[0057] Furthermore, the shell 310 includes an insertion portion 311 and a revealing portion 312 . The insertion portion 311 is inserted into the inner cavity of the connector body 100 through the installation port of the connector body 100 . The revealing portion 312 is exposed outside the connector body 100 . The alarm element 350 is arranged on the outside of the revealing portion 312 .

[0058] It can be understood that the alarm element 350 is an alarm. By arranging the alarm element 350 on the outside of the exposed portion 312, when the alarm element 350 sounds an alarm, it is convenient for people to know the specific location.

[0059] In some embodiments, the housing 310 is provided with an air outlet, and the gas compensation unit 300 further includes an air release valve 360 provided at the air outlet, and the air release valve 360 is electrically connected to the controller 330 .

[0060] Specifically, the purge valve 360 is connected to the output terminal of the controller 330. When the air pressure sensor 320 detects that the air pressure in the connector body 100 has increased and exceeded a preset range, the air pressure sensor 320 transmits this information to the controller 330, which then controls the purge valve 360 to open, thereby venting the air from the interior of the connector body 100. When the air pressure in the interior of the connector body 100 drops back to a preset range, the controller 330 controls the purge valve 360 to close.

[0061] It should be noted that the increase in the gas pressure in the inner cavity of the connector body 100 may be caused by thermal expansion of the gas or other reasons.

[0062] like Figure 1 As shown, in some embodiments, the connector body 100 includes a middle bin body 110 and two side bin bodies respectively arranged at both ends of the middle bin body 110, and both side bin bodies are provided with cable interfaces; wherein, the cable interface of one side bin body is used for passing through one cable 10, and the cable interface of the other side bin body is used for passing through another cable 10.

[0063] Specifically, one of the side warehouse bodies is defined as the first side warehouse body 120, and the other side warehouse body is defined as the second side warehouse body 130. The cable interface of the first side warehouse body 120 is used for the passage of the first cable, and the cable interface of the second side warehouse body 130 is used for the passage of the second cable; the inner cavity of the connector body 100 is provided with a first seal and a second seal. The first seal is used to be sleeved on the outside of the first cable and separate the internal space of the first side warehouse body 120 from the internal space of the middle warehouse body 110. The second seal is used to be sleeved on the outside of the second cable and separate the internal space of the second side warehouse body 130 from the internal space of the middle warehouse body 110.

[0064] It is understood that the first cable is installed inside the connector body 100 through the cable interface on the first side housing 120, and the second cable is installed inside the connector body 100 through the cable interface on the second side housing 130. In addition, the first cable 10 and the second cable are connected by the connection structure in the interior space of the middle housing 110. After the first cable 10 and the second cable 10 are connected, the interior space of the middle housing 110 is sealed by using a first seal to separate the interior space of the first side housing 120 from the interior space of the middle housing 110, and by using a second seal to separate the interior space of the second side housing 130 from the interior space of the middle housing 110.

[0065] The mounting port is formed on the intermediate chamber 110 and communicates with the interior of the intermediate chamber 110. The housing 310 extends through the mounting port, sealing the port and reducing the risk of gas leakage from the interior of the intermediate chamber 110. The air pressure sensor 320 is disposed within the housing 310. Because the interior of the housing 310 communicates with the interior of the intermediate chamber 110, the air pressure detected by the air pressure sensor 320 is the air pressure within the interior of the intermediate chamber 110. The air outlet of the air pump 340 communicates with the interior of the housing 310 via an exhaust pipe 342. The air pump 340 can draw gas from the gas container 200 into the interior of the intermediate chamber 110.

[0066] It should be noted that the first sealing member and the second sealing member can be sealing rings or sealing cotton.

[0067] like Figure 3 As shown, it can be understood that the connection structure for connecting the cables 10 includes a first conductor 160 connected to each cable 10, and a second conductor 170 for connecting the first conductors 160. The first conductor 160 and the second conductor 170 are both made of conductive materials, such as gold, copper, etc.

[0068] Furthermore, the outer jacket of the cable 10 is provided with a stress adjustment part 140, which is made of EPDM rubber or silicone rubber with good insulation performance, which can improve the stress concentration phenomenon of the cable 10 and ensure the safety and stability of the cable 10 during operation.

[0069] In addition, the cable 10 is also covered with an epoxy part 150. The epoxy part 150 is made of epoxy resin material, has excellent electrical properties, mechanical properties and chemical stability, can provide mechanical support, and perform effective insulation protection. At the same time, it forms a complete sealing structure with related components, effectively preventing moisture, impurities, etc. from entering the interior, thereby improving the overall environmental adaptability of the connector device.

[0070] like Figure 1As shown, the present invention further provides a cable system, comprising the connector device of the above embodiment and at least two cables 10, wherein the at least two cables 10 are passed through at least two cable interfaces in a one-to-one correspondence.

[0071] In the cable system of the present invention, after the cables 10 are connected together using a connector device, at least part of the inner cavity of the connector body 100 is sealed, and the connection structure between the cables 10 is located in the sealed space, and the sealed space is filled with insulating gas to ensure the electrical insulation effect. In the connector device of the present invention, the air pressure sensor 320 can detect the air pressure in the inner cavity of the connector body 100 in real time. When insulating gas is found to leak from the inner cavity of the connector body 100, the air pressure sensor 320 will detect a decrease in the air pressure in the connector body 100. When it is detected that the air pressure in the connector body 100 is lower than a preset range, the information will be transmitted to the controller 330. The controller 330 can control the air pump 340 to start, so that the air pump 340 draws the gas in the gas container 200 into the inner cavity of the connector body 100 to play a compensatory role. It should be noted that when the air pressure value in the inner cavity of the connector body 100 returns to the preset range, the controller 330 controls the air pump 340 to stop working. In addition, when gas in the inner cavity of the joint body 100 leaks, the gas compensation unit 300 replenishes gas to the inner cavity of the joint body 100 in time, which can buy more time for maintenance personnel.

[0072] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0073] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A joint device, characterized in that: include: A connector body having an inner cavity, at least two cable interfaces communicating with the inner cavity, and a mounting port communicating with the inner cavity; Gas containers; A gas compensation unit, comprising a housing, an air pressure sensor, an air pump, and a controller; the housing is passed through the mounting port and seals the mounting port, and the interior space of the housing is connected to the inner cavity; the air pressure sensor is arranged inside the housing; the air pump is arranged in the housing, the air suction end of the air pump is connected to the gas container, and the air outlet end is connected to the interior of the housing; the air pressure sensor and the air pump are both electrically connected to the controller.

2. The connector device according to claim 1, characterized in that A sealing ring is provided between the outer side wall of the shell and the wall of the installation opening.

3. The connector device according to claim 2, characterized in that The outer side wall of the shell is provided with a mounting groove, and the sealing ring is arranged in the mounting groove.

4. The connector device according to claim 1, wherein: A hollow bracket is provided inside the housing, and the controller and / or the air pressure sensor is fixed on the bracket.

5. The connector device according to claim 1, wherein: The gas compensation unit further includes an alarm element disposed on the housing, and the alarm element is electrically connected to the controller.

6. The connector device according to claim 5, characterized in that The shell includes an inserting portion and an exposed portion. The inserting portion is inserted into the inner cavity through the installation opening. The exposed portion is exposed outside the connector body. The alarm element is arranged outside the exposed portion.

7. The connector device according to claim 1, wherein: The housing is further provided with an air outlet, and the gas compensation unit further comprises an air release valve provided at the air outlet, and the air release valve is electrically connected to the controller.

8. The connector device according to claim 1, wherein: The connector body includes a middle compartment body and two side compartment bodies respectively arranged at both ends of the middle compartment body, and both side compartment bodies are provided with the cable interface.

9. The connector device according to claim 8, characterized in that: One of the side compartments is defined as a first side compartment, and the other side compartment is defined as a second side compartment. The cable interface of the first side compartment is used for passing a first cable, and the cable interface of the second side compartment is used for passing a second cable. The inner cavity is provided with a first seal and a second seal. The first seal is used to be mounted on the outside of the first cable and separate the internal space of the first side warehouse body from the internal space of the middle warehouse body. The second seal is used to be mounted on the outside of the second cable and separate the internal space of the second side warehouse body from the internal space of the middle warehouse body.

10. A cable system, characterized in that: include: The connector device according to any one of claims 1 to 9; At least two cables are provided, and the at least two cables are passed through the at least two cable interfaces in a one-to-one correspondence.

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