Connectors, connection modules and drives for submersible drives

Abstract

The present invention relates to the field of oil production equipment control technology, and discloses a connector, a connection module, and a drive device for a submersible drive device. The connector includes a conductive component (11), a connector housing (12) for accommodating the conductive component (11), and a first insulating member (131) and a second insulating member (132) arranged between the conductive component and the connector housing and spaced apart along the length extension direction of the conductive component; the conductive component includes a first conductive bundle (112) composed of a plurality of conductive columns (1121); each conductive column is inserted into the first insulating member and the second insulating member and ceramic insulation is used between the first insulating member; wherein the second insulating member is made of elastic insulating material so that the connector housing and the conductive column are in close contact with the second insulating member. The present invention has good sealing and insulation properties, can transmit electrical energy or electrical signals, and has a simple structure.

Description

Technical Field

[0001] The present invention relates to the technical field of oil production equipment control, in particular to a connector, a connection module and a drive device. Background Art

[0002] Submersible motors are widely used in oil fields today to drive submersible electric pumps to extract crude oil. Traditional submersible electric pump systems rely on a surface control unit to drive the motor and pump underground. Current is transmitted to the motor underground via a power cable, enabling motor startup and speed control. This represents a "remote drive" approach. This method suffers from low power transmission efficiency, making it difficult to guarantee drive performance during startup and load changes, and resulting in low energy conversion efficiency for the motor. While some submersible motors currently utilize downhole controllers to drive the motor underground, some suffer from poor heat dissipation, complex structures, and safety issues such as poor insulation and sealing. To address these issues, there is an urgent need for a drive device that can directly drive the submersible motor underground while also exhibiting excellent heat dissipation, sealing, and insulation. Summary of the Invention

[0003] The purpose of the present invention is to overcome the problems of poor heat dissipation, complex structure, poor insulation, poor sealing and other safety hazards in the prior art, and to provide a driving device that can directly drive a submersible motor to work underground, has good heat dissipation performance, good sealing and insulation, and can detect underground temperature and pressure in real time.

[0004] In order to achieve the above-mentioned objectives, the present invention provides, on one hand, a connector for a submersible drive device, the connector comprising a conductive component, a connector housing for accommodating the conductive component, and a first insulating member and a second insulating member arranged between the conductive component and the connector housing and spaced apart along the length of the conductive component; the conductive component comprises a first conductive bundle consisting of a plurality of conductive posts; each conductive post is inserted through the first insulating member and the second insulating member and is insulated from the first insulating member by ceramic; wherein the second insulating member is made of an elastic insulating material so that the connector housing and the conductive posts are in close contact with the second insulating member. Furthermore, the conductive component comprises a second conductive bundle connected to the first conductive bundle; the end of the second conductive bundle facing away from the first conductive bundle extends out from the first end of the connector housing, and the end of the first conductive bundle facing away from the second conductive bundle extends out from the second end of the connector housing.

[0005] Furthermore, the first insulating member includes a support body and a plurality of first through holes formed on the support body and extending along the length direction of the conductive component, and a ceramic sleeve installed in each of the first through holes; each of the conductive columns is respectively inserted into the corresponding ceramic sleeve.

[0006] Furthermore, the second insulating member includes a body and a second through hole formed on the body and extending along the length direction of the conductive component; the end of the conductive column away from the second conductive beam passes through the corresponding second through hole and then passes out of the second end of the connector housing.

[0007] The second aspect of the present invention provides a connection module, which includes the connector and the first connection unit described above; the first connection unit includes a first cavity and a second cavity formed at the two ends of the first connection unit and extending axially, and a partition separating the first cavity and the second cavity; a first hole structure connecting the first cavity and the second cavity is formed on the partition, and the connector is inserted into the first hole structure.

[0008] Furthermore, the connection module includes a first detection unit; the first connection unit includes a second hole structure formed on the partition and connecting the first cavity and the second cavity; the first detection unit is inserted into the second hole structure.

[0009] Furthermore, the connection module includes a first valve and a third hole structure opened on the partition and connected to the second cavity and the third hole structure, and the first valve is installed in the third hole structure.

[0010] A third aspect of the present invention provides a drive device, which includes the connection module and drive body, outer shell, and bottom unit described above, wherein the connection module is configured as a head unit; the head unit and the bottom unit respectively block the two ends of the outer shell, and confine the drive body to a first accommodating chamber defined by the outer shell, the head unit, and the bottom unit, and the second accommodating chamber defined by the outer shell, the head unit, the bottom unit, and the drive body is filled with insulating fluid.

[0011] Furthermore, the driving device includes an airbag accommodated in the first accommodating cavity, the insulating fluid includes gas and liquid, and the gas is accommodated in the airbag.

[0012] Furthermore, the bottom unit includes a bottom joint, the first accommodating cavity includes a fourth accommodating cavity formed on the bottom joint, and the airbag is accommodated in the fourth accommodating cavity.

[0013] Through the above technical solution, a conductive component including a second conductive bundle composed of multiple conductive pillars is accommodated in a connector housing and a first insulating member and a second insulating member are provided between the conductive component and the connector housing; wherein each of the conductive pillars is passed through the first insulating member and the second insulating member and is insulated from the first insulating member by ceramic; and the second insulating member is made of elastic insulating material; thus, the present invention has good sealing and insulation properties and can transmit electrical energy or electrical signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a connector according to a specific embodiment of the present application;

[0015] Figure 2 Is a Figure 1 A schematic structural diagram of a connection module of a specific embodiment of the connector;

[0016] Figure 3 yes Figure 2 Schematic diagram of the structure of the head unit;

[0017] Figure 4 and Figure 5 yes Figure 3 A schematic structural diagram of the first connecting unit in FIG.

[0018] Figure 6 yes Figure 3 a cross-sectional view of the first connecting unit in FIG;

[0019] Figure 7 and Figure 8 yes Figure 3 Schematic diagram of the structure of the middle connector body;

[0020] Figure 9 yes Figure 3 a cross-sectional view of the middle connector body;

[0021] Figure 10 yes Figure 2 Schematic diagram of the structure of the middle and bottom unit;

[0022] Figure 11 and Figure 12 yes Figure 10 Schematic diagram of the structure of the midsole joint;

[0023] Figure 13 yes Figure 10 Cross-sectional view of the middle connector body.

[0024] Description of Reference Numerals

[0025] 1-connector; 11-conductive assembly; 111-second conductive bundle; 112-first conductive bundle; 1121-conductive post; 12-connector housing; 122-terminal tail cover; 121-terminal housing; 123-terminal threaded cover; 124-board housing; 125-second sealing ring; 13-insulating assembly; 131-first insulating member; 1311-support body; 1312-first through hole; 132-second insulating member; 1321-body; 1322-second through hole; 2-outer shell; 3-head unit; 31-connector assembly; 32-first connecting unit; 321-first connecting structure; 322-second hole structure; 323-third hole structure; 324-second connecting structure; 325-first cavity; 326-second cavity; 327-partition; 328-first hole structure; 33-first valve; 34-first detection unit; 35-second connecting unit; 351-third connecting structure; 352-first annular groove; 353-fourth connecting structure; 354-mounting through hole; 36-first sealing gasket; 4-bottom unit; 41-bottom tray; 411-third through hole; 43-airbag; 44-bottom joint; 441-fifth connecting structure; 442-second annular groove; 443-fourth accommodating chamber; 444-fourth cavity; 445-sixth connecting structure; 45-second valve; 5-driver body. DETAILED DESCRIPTION

[0026] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0028] In order to achieve the above object, the present invention provides a connector for a submersible drive device, such as Figure 1As shown, the connector 1 includes a conductive component 11, a connector housing 12 for accommodating the conductive component 11, and a first insulating member 131 and a second insulating member 132 arranged between the conductive component 11 and the connector housing 12 and spaced apart along the length of the conductive component 11; the conductive component 11 includes a first conductive bundle 112 composed of a plurality of conductive posts 1121; each conductive post 1121 is inserted into the first insulating member 131 and the second insulating member 132 and is insulated with ceramic between the first insulating member 131; the use of ceramic insulation can both improve the insulation level and provide the rigidity required by the conductive component 11, wherein the second insulating member 132 is made of elastic insulating material so that the connector housing 12 and the conductive posts 1121 are in close contact with the second insulating member 132, so that the second insulating member 132 acts as both insulation and sealing. The present invention has good sealing and insulation properties, can transmit electrical energy or electrical signals, and has a simple structure.

[0029] Further preferably, the first insulating member 131 is provided with a positioning structure. This positioning mechanism can define the axial position of the second insulating member 132. Preferably, the conductive assembly 11 includes a second conductive bundle 111 connected to the first conductive bundle 112; the second conductive bundle 111 and the first conductive bundle 112 extend in the same direction and are connected end to end; the end of the second conductive bundle 111 facing away from the first conductive bundle 112 passes through the first end of the connector housing 12, and the end of the first conductive bundle 112 facing away from the second conductive bundle 111 passes through the second end of the connector housing 12. The first conductive bundle 112 is used to transmit power lines and / or signal lines from one end of the connector to the other end.

[0030] The connector housing 12 includes a wire end cap 122, a wire end housing 121, a wire end threaded cap 123, a board end housing 124, and a second sealing ring 125, arranged in sequence from the second conductive bundle 111 to the first conductive bundle 112. The wire end cap 122, wire end housing 121, board end housing 124, and second sealing ring 125 define an open accommodating cavity with both ends open. The end of the first conductive bundle 112 facing away from the second conductive bundle 111 passes through the board end housing 124 and out of the first end of the connector housing 12. The end of the second conductive bundle 111 facing away from the first conductive bundle 112 passes through the wire end cap 122. In which, the wire end tail cover 122 includes a stepped sleeve with different radii; the large end of the stepped sleeve is threadedly connected to the wire end shell 121, and the small end of the stepped sleeve is for the second conductive bundle 111 to enter and exit, and the second conductive bundle 111 is composed of a copper wire and an insulating outer layer covering the copper wire, and the insulating outer layer is in close contact with the inner hole of the small end of the stepped sleeve; the second conductive bundle 111 is connected to the conductive column 1121 through the copper wire, and the wire end tail cover 122 and the wire end shell 121 are threadedly connected to play a locking role; the wire end shell 121 is set to a cylindrical structure to accommodate the first conductive bundle 112, the first insulating member 131 and the second insulating member 132 in the accommodating cavity defined by the cylindrical structure to play a protective role, and the two ends of the cylindrical structure are provided with external threads, and the wire end tail cover 122 and the plate end shell 124 are respectively connected through the external threads at both ends of the structure.

[0031] Further preferably, the plate-end housing 124 includes a cylindrical structure and a flange connected to the outer periphery of the cylindrical structure for securing the connector 1. The end of the first conductive bundle 112 facing away from the second conductive bundle 111 is housed within the cylindrical structure. During operation, the end of the first conductive bundle 112 facing away from the second conductive bundle 111 is connected to the driver body 5. In this way, the cylindrical structure protects the first conductive bundle 112 from external forces. The plate-end housing 124 and the wire-end housing 121 are connected and locked via a wire-end threaded cover 123. A second sealing ring 125 is installed on the side of the plate-end housing 124 facing away from the wire-end threaded cover 123. The second sealing ring 125 provides both sealing and insulation.

[0032] Preferably, the first insulating member 131 includes a support body 1311, a plurality of first through-holes 1312 formed on the support body 1311 and extending along the length of the conductive component 11, and a ceramic sleeve mounted in each first through-hole 1312. Each conductive post 1121 is inserted into a corresponding ceramic sleeve. The provision of the ceramic sleeve improves the insulation level between the conductive post 1121 and the connector housing 12. The end of the first conductive bundle 112 facing the second conductive bundle 111, after passing through the first insulating member 131, is fixedly connected to the end surface of the first insulating member 131 facing the second conductive bundle 111.

[0033] Preferably, the second insulating member 132 includes a body 1321 and a second through-hole 1322 formed in the body 1321 and extending along the length of the conductive assembly 11. The end of the conductive post 1121, facing away from the second conductive bundle 111, passes through the corresponding second through-hole 1322 and then out of the second end of the connector housing 12. In this way, the conductive post 1121 is insulated from the connector housing 12 by the second insulating member 132. When one end of the conductive post 1121 passes through the second end of the connector housing 12, it can be connected to other components.

[0034] Connectors configured using the above technology can achieve insulation resistance greater than 500 megohms, withstand voltages above 1700 volts, a seal protection type test pressure greater than 50 MPa, and withstand ambient temperatures of -40°C to 120°C. This achieves insulation sealing in high-temperature and high-pressure environments.

[0035] A second aspect of the present invention provides a connection module, such as Figure 2 As shown, the connection module includes the connector 1 described above and a first connection unit 32. The first connection unit 32 includes a first cavity 325 and a second cavity 326 formed at both ends of the first connection unit 32 and extending axially, and a partition 327 separating the first cavity 325 from the second cavity 326. The partition 327 is formed with a first hole structure 328 connecting the first cavity 325 and the second cavity 326. The connector 1 is inserted into the first hole structure 328. This arrangement ensures isolation between the first cavity 325 and the second cavity 326, effectively preventing liquid from flowing between the first cavity 325 and the second cavity 326. This provides the connection module with the technical advantages of the aforementioned connector.

[0036] Preferably, the connection module includes a plurality of connectors 1 mounted on the first connection unit 32. Figure 2-3As shown, the connection module is provided with two different connectors 1 to form a connector assembly 31; one of the two connectors 1 is a dedicated connector for power lines, and the other is a dedicated connector for signal lines. In this way, the connector assembly 31 can realize the transmission of electrical signals and electrical energy.

[0037] Preferably, the connection module includes a first detection unit 34; the first connection unit 32 includes a second hole structure 322 formed on the partition 327 and connecting the first cavity 325 and the second cavity 326; the first detection unit 34 is disposed in the second hole structure 322. The first detection unit 34 is configured as a pressure transmitter, which can realize real-time pressure detection.

[0038] Preferably, the connection module includes a first valve 33 and a third hole structure 323 opened on the partition 327 and connected to the second cavity 326, and the first valve 33 is installed in the third hole structure 323. Figure 3 In the connection module shown, the first valve 33 is provided with a blocking screw. By so providing, the gas can be discharged from the accommodating cavity connected to the third hole structure 323 through the blocking screw.

[0039] Preferably, the connection module includes a second connection unit 35 detachably connected to the first connection unit 32; wherein the connector 1 is installed inside the first connection unit 32; the end of the first connection unit 32 facing away from the second connection unit 35 is used to connect the submersible motor; the end of the second connection unit 35 facing away from the first connection unit 32 is used to connect the drive body 5.

[0040] A third aspect of the present invention provides a driving device, such as Figure 2 As shown, the drive device includes the aforementioned connection module and driver body 5, an outer shell 2, and a bottom unit 4. The connection module is configured as a head unit 3. The head unit 3 and the bottom unit 4 respectively seal the ends of the outer shell 2, confining the driver body 5 within a first accommodating chamber defined by the outer shell 2, the head unit 3, and the bottom unit 4. A second accommodating chamber defined by the outer shell 2, the head unit 3, the bottom unit 4, and the driver body 5 is filled with an insulating fluid. The driver body 5 includes a bracket and electronic components and a circuit board fixed to the bracket. The bracket is preloaded at both ends to ensure that the components fixed to the bracket do not contact the inner wall of the outer shell 2. Elastic gaskets are installed at both ends of all circuit board fixing holes to provide cushioning and vibration prevention. The drive device ensures that electrical energy and electrical signals are connected and insulated between the inside and outside of the drive device through the connector 1, and dissipates heat from the drive device through the insulating fluid.

[0041] Furthermore, the driving device further comprises a second temperature detection unit provided on the driver body 5. The second temperature detection unit comprises a temperature sensor, through which the motor temperature can be detected to achieve real-time monitoring of the motor status.

[0042] In addition to the technical advantages of the connector 1 , the drive device also has the technical advantage of good heat dissipation because the heat generated by the driver body 5 can be conducted to the outer shell 2 through the insulating fluid and then dissipated, thereby preventing heat accumulation in the outer shell 2 .

[0043] Furthermore, the drive device includes a gas bag 43 housed in the first accommodating chamber. The insulating fluid includes gas and liquid. The liquid injected into the first accommodating chamber includes, but is not limited to, transformer oil. In the present application, providing a portion of gas in the first accommodating chamber prevents pressure changes caused by thermal expansion and contraction of the liquid from affecting the entire drive device. To secure the gas in a predetermined position, the gas is contained in the gas bag 43.

[0044] Furthermore, the bottom unit 4 includes a bottom joint 44, and the first accommodating cavity includes a fourth accommodating cavity 443 formed on the bottom joint 44. The airbag 43 is accommodated in the fourth accommodating cavity 443. Thus, by limiting the position of the airbag 43, the position of the gas is further limited, ensuring that the liquid is distributed around the driver body 5. Thus, when the electrical components on the driver body 5 are in operation, the heat generated is transferred to the liquid. The liquid expands due to the heat, and the airbag 43 can be compressed to provide a buffering effect without affecting the heat dissipation effect.

[0045] More preferably, Figure 2-3 As shown, the connection module includes two connectors. The first conductive bundle 112 of one of the two connectors includes five conductive posts 1121, and this connector serves as a power line connector. The first conductive bundle 112 of the other of the two connectors includes ten conductive posts 1121, and this connector serves as a signal line connector. Of course, multiple connectors can be provided in the connection module, and the number of conductive posts 1121 in the power line connector is not limited to five, and the number of conductive posts 1121 in the signal line connector is not limited to ten. The number of conductive posts 1121 is determined based on actual needs. The conductive posts 1121 can be copper posts to increase the current that can be carried.

[0046] Preferably, the bottom unit 4 includes a bottom tray 41 covering the opening of the fourth accommodating cavity 443 and having a third through hole 411. When the airbag 43 is contained within the fourth accommodating cavity 443, it is restrained by the bottom tray 41, further defining the position of the airbag 43 within the first accommodating cavity. The airbag 43 is sealed after being filled with gas and then placed within the fourth accommodating cavity 443. Liquid can flow through the third through hole 411 to ensure that it fills the space around the airbag 43.

[0047] In order to inject or discharge the liquid into the first accommodating chamber, the driving device is provided with Figure 3 The first valve 33 shown and Figure 10 The second valve 45 shown; wherein the first valve 33 is installed as shown Figure 4-6 The second valve 45 is installed in the third hole structure 323 of the head unit 3 as shown; Figure 1 、 Figure 13 In the fourth cavity 444 shown in FIG. , the second valve 45 can be configured as an oil filling valve, and the first valve 33 can be configured as a plugging screw. Thus, insulating liquid can be injected into the second accommodating cavity by opening the second valve 45. Simultaneously, the plugging screw is opened, and the gas in the second accommodating cavity is discharged through the third hole structure 323 that accommodates the plugging screw. Thus, the second accommodating cavity can be filled with insulating liquid. The reverse is also true.

[0048] The driver body 5 includes a bracket and the electronic components and circuit boards fixed to the bracket. The bracket's ends are preloaded and stretched to prevent the electronic components from contacting the inner wall of the outer shell 2. This arrangement effectively reduces vibration. To further reduce vibration, elastic gaskets are installed at both ends of each electronic component mounting hole.

[0049] The bottom tray 41 is threadedly connected to the outer shell 2 via external threads. The bottom tray 41 also includes through-holes for connecting bolts. These connecting bolts pass through these through-holes and connect to brackets with internally threaded holes on the driver body 5. This provides a preload force to the brackets when the driver body 5 and bottom tray 41 are connected via the connecting bolts, stretching both ends of the brackets. This ensures the brackets are securely fixed and prevents any electronic components attached to the brackets from contacting the inner wall of the outer shell 2.

[0050] In the drive device, Figure 3In the head unit 3 of a specific embodiment shown in the figure, the head unit 3 includes a first connecting unit 32 and two connectors 1 installed on the first connecting unit 32, a first valve 33 installed on the side wall of the first connecting unit 32, a first detection unit 34 installed on the first connecting unit 32, and a second connection unit 35 threadedly connected to the first connecting unit 32; wherein the first detection unit 34 is used to detect liquid pressure and convert the detected signal into an electrical signal and provide it to the driver body 5; Figure 9 As shown, the second connecting unit 35 is provided with a first annular groove 352 at one end away from the first connecting unit 32. Figure 3 The first sealing gasket 36 shown in FIG. 3 is used for sealing connection between the second connecting unit 35 and the outer housing 2 .

[0051] like Figure 4-6 As shown, the first connection unit 32 includes a first connection structure 321 with external threads, and is connected to the submersible motor through the first connection structure 321. The first connection structure 321 is provided with a second connection structure 324 with external threads at one end away from the submersible motor, and is connected to the second connection unit 35 through the second connection structure 324. Figure 6 As shown, a first cavity 325 is provided near one end of the first connecting structure 321, and a second cavity 326 is provided near one end of the second connecting structure 324. A partition 327 is provided between the first cavity 325 and the second cavity 326. A second hole structure 322 is provided on the partition 327, and the first detection unit 34 is inserted into the second hole structure 322. The inner wall shape of the second hole structure 322 matches the outer shape of the first detection unit 34 to ensure good sealing performance. A third hole structure 323 is provided on the side wall of the first connecting unit 32. The third hole structure 323 is divided into two parts: a radial hole and an axial hole. The radial hole is used to install the first valve 33. The first valve 33 and the radial hole are used to discharge gas when liquid flows from the first accommodating chamber into the second cavity 326.

[0052] like Figure 7-9 Schematic diagram of the structure of the second connecting unit 35, the second connecting unit 35 is a cylindrical structure, such as Figure 9As shown, the second connecting unit 35 includes a fourth connecting structure 353 with external threads. The fourth connecting structure 353 is connected to the internal threads of the outer shell 2 to fix the head unit 3 to the outer shell 2. At the same time, the second connecting unit 35 also includes a mounting hole 354 provided at one end of the second connecting unit 35 near the driver body 5, and is connected to the driver body 5 through this mounting hole 354. The end of the second connecting unit 35 facing the first connecting unit 32 includes a third connecting structure 351 with internal threads. The first connecting unit 32 and the second connecting unit 35 are threadedly connected via the externally threaded second connecting structure 324 and the internally threaded third connecting structure 351.

[0053] A bottom unit 4 of a specific embodiment is as follows Figure 10 As shown, the bottom unit 4 is composed of a bottom tray 41, a second sealing gasket 42, an airbag 43, a bottom joint 44 and a second valve 45. The bottom tray 41 is used to connect to the driver body 5 and the outer shell at the same time; the connection seal between the bottom joint 44 and the outer shell 2 is achieved by the second sealing gasket 42; the airbag 43 is set as a rubber airbag to fix the position of the gas in the first accommodating chamber. When the liquid in the first accommodating chamber expands and contracts due to heat, the airbag 43 plays a buffering role, eliminating the impact of thermal expansion and contraction on the driving device without affecting heat dissipation; the bottom joint 44 is used to install the airbag 43 and the second valve 45, and is connected to the outer shell 2; the second valve 45 is also used to inject oil into the first accommodating chamber. As shown Figure 13 As shown, the bottom joint 44 includes a fourth accommodating chamber 443 and a fourth cavity 444 arranged axially and communicating with each other, wherein the fourth accommodating chamber 443 is used to accommodate the airbag 43; the fourth cavity 444 is used to install the second valve 45; a fifth connecting structure 441 with an external thread for connecting to the outer shell 2 is provided at one end of the outer wall of the bottom joint 44; a sixth connecting structure 445 with an external thread is provided at the other end away from the fifth connecting structure 441, and the anchor is connected through the sixth connecting structure 445. The outer periphery of the bottom joint 44 includes a plurality of second annular grooves 442, which are connected by Figure 10 The second sealing gasket 42 is installed in the second annular groove 442 to achieve sealing between the bottom joint 44 and the outer shell 2, thereby enhancing the sealing effect of the drive device.

[0054] When this driving device is used to drive an underground submersible motor, the motor can be directly driven underground, so that the power utilization and oil pumping efficiency can be maximized. Through the first detection unit 34 for pressure detection and the second detection unit for temperature detection, the pressure and temperature can be directly sampled underground, and the motor encoder signal can be directly sampled, thereby realizing real-time monitoring of the motor status, thereby improving the control ability of the motor.

[0055] By using the first detection unit 34 configured as a pressure transmitter and the second detection unit configured as a temperature sensor on the drive device to detect the downhole temperature and pressure in real time, the adaptability of the submersible motor driven by the drive device to the downhole environment is effectively guaranteed, and the purpose of long-distance communication with the ground control device is achieved. The communication distance can exceed 2000 meters, so that the downhole status can be monitored in real time on the ground and various operation commands can be sent.

[0056] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, the technical solution of the present invention may be subjected to a variety of simple modifications, including combining the various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as disclosed in the present invention and fall within the scope of protection of the present invention.

Claims

1. A connector for a submersible drive device, characterized in that: The connector comprises a conductive component (11), a connector housing (12) for accommodating the conductive component (11), and a first insulating member (131) and a second insulating member (132) arranged between the conductive component (11) and the connector housing (12) and spaced apart along the length extension direction of the conductive component (11); the conductive component (11) comprises a first conductive bundle (112) consisting of a plurality of conductive pillars (1121); each conductive pillar (1121) is passed through the first insulating member (131) and the second insulating member (132) and is insulated with ceramic between the first insulating member (131); wherein the second insulating member (132) is made of elastic insulating material so that the connector housing (12) and the conductive pillar (1121) are in close contact with the second insulating member (132); The conductive assembly (11) includes a second conductive beam (111) connected to the first conductive beam (112); an end of the second conductive beam (111) facing away from the first conductive beam (112) passes through a first end of the connector housing (12), and an end of the first conductive beam (112) facing away from the second conductive beam (111) passes through a second end of the connector housing (12); The first insulating member (131) comprises a support body (1311), a plurality of first through holes (1312) formed on the support body (1311) and extending along the length direction of the conductive component (11), and a ceramic sleeve installed in each of the first through holes (1312); each of the conductive pillars (1121) is respectively inserted into the corresponding ceramic sleeve; The second insulating member (132) comprises a body (1321) and a second through hole (1322) formed on the body (1321) and extending along the length direction of the conductive component (11); an end of the conductive column (1121) facing away from the second conductive beam (111) passes through the corresponding second through hole (1322) and then passes out of the second end of the connector housing (12); The connector housing (12) comprises a wire end tail cover (122), a wire end housing (121), a wire end threaded cover (123), a plate end housing (124) and a second sealing ring (125) which are arranged in sequence in a connection direction from the second conductive bundle (111) to the first conductive bundle (112); the plate end housing (124) comprises a cylindrical structure and a flange connected to the outer periphery of the cylindrical structure for fixing the connector.

2. A connection module, characterized in that: The connection module comprises a connector according to claim 1 and a first connection unit (32); the first connection unit (32) comprises a first cavity (325) and a second cavity (326) formed at two ends of the first connection unit (32) and extending axially, and a partition (327) separating the first cavity (325) and the second cavity (326); a first hole structure (328) communicating with the first cavity (325) and the second cavity (326) is formed on the partition (327), and the connector is inserted into the first hole structure (328).

3. The connection module according to claim 2, characterized in that The connection module comprises a first detection unit (34); the first connection unit (32) comprises a second hole structure (322) formed on the partition (327) and communicating with the first cavity (325) and the second cavity (326); and the first detection unit (34) is disposed in the second hole structure (322).

4. The connection module according to claim 3, characterized in that The connection module comprises a first valve (33) and a third hole structure (323) opened on the partition (327) and communicating with the second cavity (326), wherein the first valve (33) is installed in the third hole structure (323).

5. A driving device, characterized in that: The driving device comprises a connection module and a driver body (5), an outer shell (2), and a bottom unit (4) as described in any one of claims 2 to 4, wherein the connection module is configured as a head unit (3); the head unit (3) and the bottom unit (4) are respectively sealed at both ends of the outer shell (2), and the driver body (5) is confined in a first accommodating cavity defined by the outer shell (2), the head unit (3), and the bottom unit (4), and a second accommodating cavity defined by the outer shell (2), the head unit (3), the bottom unit (4), and the driver body (5) is filled with an insulating fluid.

6. The driving device according to claim 5, characterized in that The driving device comprises an air bag (43) accommodated in the first accommodation cavity, the insulating fluid comprises gas and liquid, and the gas is accommodated in the air bag (43).

7. The driving device according to claim 6, characterized in that The bottom unit (4) includes a bottom joint (44), the first accommodating cavity includes a fourth accommodating cavity (443) formed on the bottom joint (44), and the airbag (43) is accommodated in the fourth accommodating cavity (443).

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