Power cable for an underwater actuator

Abstract

A kind of power supply cable of underwater actuator, including cable shell, signal wire, conducting wire, air pipe, cable shell one end bifurcates, is connected first, second connector respectively, air flow buffer cavity is arranged in second connector, first connector extension end inserts first mini-fit connector, second connector extension end inserts second mini-fit connector, the insertion port of second mini-fit connector is communicated with air flow buffer cavity, signal wire, conducting wire, air pipe are side by side in cable shell, signal wire one end passes through first connector, respectively with corresponding plug-in terminal electrical connection, the one end of two conducting wires passes through second connector, one of conducting wire bifurcates, with corresponding positive plug-in terminal parallel, the other conducting wire bifurcates, with corresponding negative plug-in terminal parallel, air pipe is communicated with air flow buffer cavity.The utility model discloses simple structure, processing cost is low, can effectively balance the negative pressure of underwater actuator, reduces the risk of actuator water inlet, guarantees the underwater service life of actuator.

Description

Technical Field

[0001] This utility model relates to the field of cable harnesses, and in particular to a power supply cable for an underwater actuator. Background Technology

[0002] The company's IP68 waterproof-rated electric linear actuators require complete immersion underwater throughout their entire service life to maintain reliable operation. These actuators are powered and transmit signals via external cables.

[0003] When the inner tube of the actuator extends, it will cause the internal volume of the actuator to increase, creating a negative pressure inside the actuator. Under long-term negative pressure, the sealing structure between the external cable and the actuator is prone to failure, causing water to enter the actuator and causing it to fail, which will seriously shorten the service life of the actuator.

[0004] Therefore, designing a safe and reliable power supply cable for underwater actuators used in the aforementioned environments is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a power supply cable for an underwater actuator. This cable has a simple structure, low processing cost, and can effectively balance the negative pressure of the underwater actuator, reduce the risk of water ingress, and ensure the underwater service life of the actuator.

[0006] The technical solution of this utility model is: a power supply cable for an underwater actuator, comprising a cable housing, multiple signal wires, two conductive wires, and a vent pipe. One end of the cable housing is forked and connected to a first connector and a second connector respectively. The outer peripheral sidewalls of both the first and second connectors are provided with limiting flanges and fitted with sealing rings. An airflow buffer chamber is provided in the second connector. A first mini-fit connector is inserted into the extended end of the first connector, and a second mini-fit connector is inserted into the extended end of the second connector. The socket of the second mini-fit connector communicates with the airflow buffer chamber. The two mini-fit connectors... Each port of the device is equipped with a plug terminal. The number of signal wires is the same as the number of ports of the first mini-fit connector. Multiple signal wires, two conductive wires, and a vent tube are arranged side by side in the cable housing. One end of the signal wire passes through the first connector and is electrically connected to the corresponding plug terminal on the first mini-fit connector. One end of the two conductive wires passes through the second connector. One conductive wire is forked and connected in parallel with the corresponding positive plug terminal on the second mini-fit connector. The other conductive wire is forked and connected in parallel with the corresponding negative plug terminal on the second mini-fit connector. One end of the vent tube is connected to the airflow buffer chamber in the second connector.

[0007] Both the first connector and the second connector are L-shaped, and the connecting ends of the L-shaped first connector and the second connector are connected to the bifurcation end of the cable shell through threaded engagement.

[0008] The outer peripheral sidewall of the cable housing is covered with a rubber protective layer, which covers the connection section of the first connector and the second connector.

[0009] Both the first mini-fit connector and the second mini-fit connector are 6-pin connectors.

[0010] The first connector and the second connector have positioning grooves extending along the length direction on their outer peripheral sidewalls, and are located in front of the sealing ring.

[0011] Both the first connector and the second connector have mounting slots at their extended ends. The first mini-fit connector and the second mini-fit connector are respectively inserted into the first connector and the second connector through the mounting slots.

[0012] The multiple signal wires and two conductive wires are distributed on the outer peripheral sidewall of the vent pipe.

[0013] The above technical solution has the following beneficial effects: 1. The power supply cable of the underwater actuator includes a cable housing, multiple signal wires, two conductive wires, and a vent pipe. The cable housing provides structural strength and protects the signal wires, conductive wires, and vent pipe. The signal wires transmit electrical signals, the conductive wires transmit power, and the vent pipe balances pressure. One end of the cable housing is forked and connected to a first connector and a second connector, respectively, for insertion into the signal terminal and power terminal of the underwater actuator. Both the first and second connectors have limiting flanges on their outer peripheral sidewalls and are fitted with sealing rings. After insertion into the signal and power terminals of the underwater actuator, the limiting flanges limit the insertion position, and the sealing rings seal the gap between the connectors and the signal and power terminals, providing a sealing effect. The second connector has an airflow buffer chamber. A first mini-fit connector is inserted into the extension end of the first connector, and a second mini-fit connector is inserted into the extension end of the second connector. The socket of the second mini-fit connector communicates with the airflow buffer chamber. Each of the two mini-fit connectors has a connector terminal in each port, used for connecting to the signal terminal and the power terminal connector, respectively. The number of signal wires is the same as the number of ports on the first mini-fit connector. Multiple signal wires, two conductive wires, and a vent tube are arranged side by side in the cable housing. One end of each signal wire passes through the first connector and is electrically connected to the corresponding connector terminal on the first mini-fit connector, thus connecting the signal wire to the signal terminal of the underwater actuator. One end of each of the two conductive wires passes through the second connector. One conductive wire branches and connects in parallel to the corresponding positive connector terminal on the second mini-fit connector, while the other conductive wire branches and connects in parallel to the corresponding negative connector terminal on the second mini-fit connector, thus connecting the conductive wire to the power terminal of the underwater actuator. One end of the vent pipe is connected to the airflow buffer chamber in the second connector. Since the socket of the second mini-fit connector is connected to the airflow buffer chamber, the vent pipe is connected to the socket of the second mini-fit connector through the airflow buffer chamber, so that the internal space of the underwater actuator is connected to the vent pipe. This can balance the pressure in the internal space of the underwater actuator, avoid water ingress caused by negative pressure over a long period of time, and ensure the service life of the underwater actuator.

[0014] 2. Both the first connector and the second connector are L-shaped. The connecting ends of the L-shaped first connector and the second connector are connected to the bifurcated end of the cable housing through threaded engagement, which facilitates the assembly of the first connector and the second connector and improves the connection and sealing between the connector and the cable housing.

[0015] 3. The outer periphery of the cable housing is covered with a rubber protective layer, which covers the connection section of the first connector and the second connector, thereby improving the sealing between the connector and the cable housing while ensuring the protection of the cable housing.

[0016] 4. The outer peripheral sidewalls of the first connector and the second connector are provided with positioning grooves extending along the length direction and located in front of the sealing ring, which facilitates the insertion of the first connector and the second connector into the new terminal and power terminal of the underwater actuator, and prevents the connectors from rotating during use, thus ensuring the sealing effect.

[0017] 5. Multiple signal wires and two conductive wires are distributed on the outer periphery of the vent pipe, working in conjunction with the cable housing to form a support space for the vent pipe, preventing it from being compressed and deformed, and ensuring the ventilation effect.

[0018] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model without the rubber protective layer; Figure 3 This is a schematic diagram showing the arrangement of the signal wires, conductive wires, and vent tubes of this utility model; Figure 4 This is a front view of the second connector of this utility model; Figure 5 This is a rear view of the second connector of this utility model.

[0020] In the attached diagram, 1 is the cable housing, 2 is the signal wire, 3 is the conductive wire, 4 is the vent tube, 5 is the first connector, 6 is the second connector, 7 is the limiting flange, 8 is the sealing ring, 9 is the airflow buffer chamber, 10 is the first mini-fit connector, 11 is the second mini-fit connector, 12 is the rubber protective layer, and 13 is the positioning groove. Detailed Implementation

[0021] See Figures 1 to 5This is a specific embodiment of a power supply cable for an underwater actuator. The power supply cable for the underwater actuator includes a cable housing 1, multiple signal wires 2, two conductive wires 3, and a vent pipe 4. The cable housing is made of conventional materials, and the signal wires, conductive wires, and vent pipe are all commercially available products. One end of the cable housing 1 is forked and connected to a first connector 5 and a second connector 6. In this embodiment, the cable housing is generally L-shaped, and both the first connector 5 and the second connector 6 are L-shaped. The connecting ends of the L-shaped first connector 5 and the second connector 6 are connected to the forked end of the cable housing 1 by threaded engagement. To ensure a tight seal, the outer periphery of the cable housing 1 is covered with a rubber protective layer 12, which covers the connecting sections of the first connector 5 and the second connector 6. Both the first connector 5 and the second connector 6 have limiting flanges 7 on their outer peripheral sidewalls, and both are fitted with sealing rings 8. Obviously, the sealing rings are located in front of the limiting flanges, and the first connector 5 and the second connector 6 have positioning grooves 13 extending along the length direction on their outer peripheral sidewalls, located in front of the sealing rings 8. The second connector 6 has an airflow buffer chamber 9. Specifically, the insertion section of the second connector has a cavity extending along the extension direction. The front part of the cavity has a front baffle with two square holes, each corresponding to a conductive wire. The rear part of the cavity has a rear baffle with three round holes, each corresponding to two conductive wires and a vent pipe. The space between the two baffles forms an airflow buffer chamber. The extension end of the first connector 5 is inserted into a first mini-fit connector 10, and the extension end of the second connector 6 is inserted into a second mini-fit connector 11. The socket of the second mini-fit connector 11 is connected to the airflow buffer chamber 9. In this embodiment, both the first mini-fit connector 10 and the second mini-fit connector 11 are 6-pin connectors. Each socket of the two mini-fit connectors is equipped with a plug terminal, and the extension ends of the first connector 5 and the second connector 6 are provided with mounting slots. The first mini-fit connector 10 and the second mini-fit connector 11 are respectively inserted into the first connector 5 and the second connector 6 through the mounting slots. The number of signal wires 2 is the same as the number of sockets of the first mini-fit connector, that is, there are six signal wires. The six signal wires 2, two conductive wires 3, and the vent tube 4 are arranged side by side in the cable housing 1. Specifically, the vent tube is in the center, and the six signal wires and two conductive wires are distributed on the circumferential wall of the vent tube.One end of the signal wire 2 passes through the first connector 5 and is electrically connected to the corresponding plug terminals on the first mini-fit connector. One end of each of the two conductive wires 3 passes through the second connector 6. One conductive wire branches and is connected in parallel to the corresponding positive plug terminal on the second mini-fit connector, while the other conductive wire branches and is connected in parallel to the corresponding negative plug terminal on the second mini-fit connector. One end of the vent tube 4 is connected to the airflow buffer chamber 9 in the second connector 6. The other ends of the cable housing, each signal wire, conductive wire, and vent tube form free ends.

[0022] The working principle of this invention is as follows: The first connector is inserted into the signal terminal of the underwater actuator, and the pins in the signal terminal align with the terminals of the first mini-fit connector. Simultaneously, a sealing ring seals the gap between the first connector and the signal terminal. The second connector is inserted into the power terminal of the underwater actuator, and the pins in the power terminal align with the terminals of the second mini-fit connector (positive and negative terminals correspond). Again, a sealing ring seals the gap between the second connector and the power terminal. When a negative pressure occurs inside the underwater actuator, it can be balanced through a vent pipe, preventing external water from penetrating the sealing ring and entering the underwater actuator under negative pressure conditions, thus ensuring the service life of the underwater actuator.

Claims

1. A power supply cable for an underwater actuator, characterized in that: It includes a cable housing (1), multiple signal wires (2), two conductive wires (3), and a vent tube (4). One end of the cable housing (1) is forked and connected to a first connector (5) and a second connector (6) respectively. The outer peripheral sidewalls of the first connector (5) and the second connector (6) are provided with limiting flanges (7) and are fitted with sealing rings (8). An airflow buffer chamber (9) is provided in the second connector (6). The extension end of the first connector (5) is inserted into a first mini-fit connector (10), and the extension end of the second connector (6) is inserted into a second mini-fit connector (11). The socket of the second mini-fit connector (11) is connected to the airflow buffer chamber (9). Each socket of the two mini-fit connectors is equipped with a plug terminal. The number of signal wires (2) is the same as the number of sockets of the first mini-fit connector. Multiple signal wires (2), two conductive wires (3), and a vent tube (4) are arranged side by side in the cable housing (1). One end of the signal wire (2) passes through the first connector (5) and is electrically connected to the corresponding plug terminals on the first mini-fit connector. One end of the two conductive wires (3) passes through the second connector (6). One conductive wire is forked and connected in parallel with the corresponding positive plug terminal on the second mini-fit connector. The other conductive wire is forked and connected in parallel with the corresponding negative plug terminal on the second mini-fit connector. One end of the vent tube (4) is connected to the airflow buffer chamber (9) in the second connector (6).

2. The power supply cable for the underwater actuator according to claim 1, characterized in that: Both the first connector (5) and the second connector (6) are L-shaped. The connecting ends of the first connector (5) and the second connector (6) are connected to the bifurcated end of the cable housing (1) through threaded engagement.

3. The power supply cable for the underwater actuator according to claim 2, characterized in that: The outer peripheral sidewall of the cable housing (1) is covered with a rubber protective layer (12), which covers the connection section of the first connector (5) and the second connector (6).

4. The power supply cable for the underwater actuator according to claim 1, characterized in that: Both the first mini-fit connector (10) and the second mini-fit connector (11) are 6-pin connectors.

5. The power supply cable for the underwater actuator according to claim 1, characterized in that: The outer peripheral sidewalls of the first connector (5) and the second connector (6) are provided with positioning grooves (13) extending along the length direction and located in front of the sealing ring (8).

6. The power supply cable for the underwater actuator according to claim 1, characterized in that: The extension ends of the first connector (5) and the second connector (6) are provided with mounting slots. The first mini-fit connector (10) and the second mini-fit connector (11) are respectively inserted into the first connector (5) and the second connector (6) through the mounting slots.

7. The power supply cable for the underwater actuator according to claim 1, characterized in that: Multiple signal wires (2) and two conductive wires (3) are distributed on the outer peripheral sidewall of the vent pipe (4).

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