Detachable battery connecting structure of ship propeller

Abstract

The utility model discloses a detachable battery connecting structure of a ship propeller, which comprises the propeller and a power supply detachably mounted on the propeller, the propeller is provided with a first power supply contact end and a first signal contact end, the power supply is provided with a second power supply contact end capable of being in contact fit with the first power supply contact end, and the first power supply contact end is provided with a second signal contact end. The second signal contact end can be in contact fit with the first signal contact end; and the first signal contact end can be in contact fit with the second signal contact end after the first power supply contact end is in contact fit with the second power supply contact end. The first signal contact end and the second signal contact end on the thruster are in contact fit, at the moment, the power supply is connected with an electrifying signal, so that the thruster and the power supply realize current conduction through the first power supply contact end and the second power supply contact end which are in contact with each other, and instant large current impact caused by voltage difference is avoided; therefore, the risk of arc discharge at the butt joint is fundamentally eliminated, and the safety of the equipment is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of marine propellers, in particular to a detachable battery connection structure for marine propellers. Background Art

[0002] Small marine thrusters, also known as top-stream anchor windlasses, are generally powered by electric motors. With the advancement of battery technology, removable batteries have become a common power source option for top-stream anchor windlasses. Quick removal and installation can achieve long-term endurance for the thruster to meet the needs of different users. However, in actual use, when the removable battery is directly connected to the input terminal of the thruster, the voltage difference between the battery and the thruster will cause a sudden large current surge, and sparks will often occur at the connection point. Since the working environment of the thruster is often exposed to water, the external sparking phenomenon increases the risk of leakage, which may not only pose a safety hazard to the operator, but may also cause damage to electrical equipment, affecting the stability and service life of the propulsion system.

[0003] Traditional solutions typically include using complex electronic protection circuits to limit current or gradually increasing the supply voltage through software control. However, these solutions often increase system cost and complexity and cannot fundamentally eliminate the risk of ignition. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a detachable battery connection structure for a marine propulsion unit, which has the characteristics of simple structure and safe connection.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A detachable battery connection structure for a marine propeller includes a propeller and a power supply detachably mounted on the propeller, wherein the propeller is provided with a first power contact terminal and a first signal contact terminal, and the power supply is provided with a second power contact terminal capable of contacting and cooperating with the first power contact terminal, and a second signal contact terminal capable of contacting and cooperating with the first signal contact terminal; the first signal contact terminal can contact and cooperate with the second signal contact terminal after the first power contact terminal contacts and the second power contact terminal.

[0007] The first power contact end and the first signal contact end are cylindrical, and the horizontal height of the first power contact end column is higher than that of the first signal contact end; the second power contact end and the second signal contact end are cylindrical concave holes, and the column of the first signal contact end can contact and mate with the concave hole of the second signal contact end after the column of the first power contact end contacts and mates with the concave hole of the second power contact end.

[0008] The propeller is provided with a first mounting boss horizontally, a first mounting groove is formed in the middle of the first mounting boss, and the first power contact terminal and the first signal contact terminal are provided in the first mounting groove;

[0009] The power supply includes a mounting frame, a lower surface of which is provided with a second mounting groove that can be mounted in cooperation with the first mounting boss, a middle portion of the second mounting groove is provided with a second mounting boss that can be mounted in cooperation with the first mounting groove, and the second power contact end and the second signal contact end are provided in the second mounting boss.

[0010] There are two first power contact terminals, which are arranged in a left-right symmetrical manner in the first mounting groove; there are two first signal contact terminals, which are arranged in a front-back symmetrical manner in the first mounting groove.

[0011] The power supply also includes a battery compartment, the mounting frame is arranged behind the top of the battery compartment, the rear side of the battery compartment is provided with a disassembly guide groove in the up and down directions, and the front of the propeller is provided with a disassembly guide plate that can move up and down in the disassembly guide groove.

[0012] Side ears capable of preventing the disassembly guide plate from being separated from the disassembly guide groove are arranged on both sides of the upper portion of the disassembly guide groove.

[0013] The beneficial effects of the utility model are:

[0014] 1. The thruster and power supply adopt a detachable design. When the power supply is installed, the first power contact terminal on the thruster first contacts and mates with the second power contact terminal of the power supply. At this time, the thruster is connected to the power supply but neither is powered. When the power supply continues to cooperate with the thruster, the first signal contact terminal on the thruster contacts and mates with the second signal contact terminal. At this time, the power supply is connected to the power signal, so that the thruster and the power supply can achieve current conduction through the first power contact terminal and the second power contact terminal that have already been in contact. This design uses the height difference between the power contact terminal and the signal contact terminal to ensure that the power terminal contacts before the signal terminal, thereby avoiding the instantaneous high current shock caused by the voltage difference, fundamentally eliminating the risk of arc discharge at the docking point, and greatly improving the safety of the equipment.

[0015] 2. The first power contact terminal and the first signal contact terminal are designed to be cylindrical, and the second power contact terminal and the second signal contact terminal are designed to be cylindrical recessed holes, which increase the accuracy and stability of the contact between the propeller and the power supply; the design of the first mounting boss and the first mounting groove on the propeller and the second mounting groove and the second mounting boss on the power supply further facilitates the power supply installation process, and the alignment of the power terminal and the signal terminal hole increases the convenience and accuracy of the operation.

[0016] 3. During installation, the disassembly guide plate at the front of the thruster must first be installed into the disassembly guide groove on the rear side of the battery compartment. Then, move the power supply downward along the guide groove, gradually bringing the mounting bracket closer to the top of the thruster until the power supply is finally installed. The side ears on both sides of the upper part of the disassembly guide groove can limit the relative position of the power supply and thruster, further increasing the accuracy and convenience of the installation process.

[0017] 4. Compared with traditional electronic protection circuits or software control methods, the solution provided by the present invention does not require additional complex hardware support or software programming, simplifies the architecture of the entire system, allows users to perform battery replacement operations more conveniently, and also reduces maintenance difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance of the propeller;

[0019] Figure 2 This is a schematic diagram of the structure after the propeller and power supply are disassembled;

[0020] Figure 3 yes Figure 2 A partial enlarged schematic diagram of area A in the middle;

[0021] Figure 4 This is a structural diagram from the perspective below the power supply;

[0022] Figure 5 yes Figure 4 A partial enlarged schematic diagram of area B in the middle;

[0023] Figure 6 This is a schematic diagram of the structure from the rear side of the power supply;

[0024] Figure 7 This is a structural diagram of the thruster from the front side. DETAILED DESCRIPTION

[0025] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of it.

[0026] Reference Figure 1 、 Figure 3 and Figure 5The utility model proposes a detachable battery connection structure for a marine propeller, including a propeller 2 and a power supply 1 detachably mounted on the propeller 2, wherein a first power contact terminal 210 and a first signal contact terminal 211 are provided on the propeller 2, and a second power contact terminal 120 capable of contacting and cooperating with the first power contact terminal 210 and a second signal contact terminal 121 capable of contacting and cooperating with the first signal contact terminal 211 are provided on the power supply 1; the first signal contact terminal 211 can contact and cooperate with the second signal contact terminal 121 after the first power contact terminal 210 contacts and cooperates with the second power contact terminal 120.

[0027] Furthermore, the thruster 2 and the power supply 1 are designed to be detachable. When the power supply is installed, the first power contact terminal 210 on the thruster first contacts and cooperates with the second power contact terminal 120 of the power supply 1. At this time, the thruster 2 is connected to the power supply but the two are not powered. When the power supply 1 continues to cooperate with the thruster, the first signal contact terminal 211 on the thruster 2 contacts and cooperates with the second signal contact terminal 120. At this time, the power supply 1 is connected to the power signal, so that the thruster 2 and the power supply 1 can achieve current conduction through the first power contact terminal 210 and the second power contact terminal 120 that have already been in contact. This design uses the height difference between the power contact terminal and the signal contact terminal to ensure that the power terminal contacts before the signal terminal, thereby avoiding the instantaneous large current shock caused by the voltage difference, fundamentally eliminating the risk of arc discharge at the docking point, and greatly improving the safety of the equipment.

[0028] Specifically, the first signal contact acts as a signal short-circuit. Upon contact with the second signal contact 121, it provides the power-on signal necessary to close the circuit. Only when the second signal contact 121 fully contacts the first signal contact 211 does the entire circuit activate, allowing the battery to officially power the thrusters. Prior to this, while the power connection is physically established, the circuit remains disconnected due to the lack of the necessary triggering signal.

[0029] Reference Figure 3 、 Figure 5The first power contact 210 and the first signal contact 211 are cylindrical, with the first power contact 210 having a higher height than the first signal contact 211. The second power contact 120 and the second signal contact 121 are cylindrical recesses, and the first signal contact 211 can engage with the recess of the second signal contact 121 after the first power contact 210 and the recess of the second power contact 120 engage. Specifically, the first power contact 210 and the first signal contact 211 are cylindrical, formed by a plurality of conductive plates arranged vertically. The center of each conductive plate bulges outward, forming a convex ring in the center of the cylinder. When the first power contact 210 and the first signal contact 211 engage with the second power contact 120 and the second power contact 120, respectively, the bulge in the center of the conductive plate abuts against the wall of the cylindrical recess, resulting in relatively close contact between the two.

[0030] Reference Figure 3 A first mounting boss 20 is horizontally provided on the propeller 2, a first mounting groove 21 is formed in the middle of the first mounting boss 20, and a first power contact terminal 210 and a first signal contact terminal 211 are provided in the first mounting groove 21;

[0031] Reference Figure 5 The power supply 1 includes a mounting frame 101, and a second mounting groove 11 that can be mounted in conjunction with the first mounting boss 20 is provided on the lower surface of the mounting frame 101. A second mounting boss 12 that can be mounted in conjunction with the first mounting groove 21 is provided in the middle of the second mounting groove 11, and the second power contact terminal 120 and the second signal contact terminal 121 are provided in the second mounting boss 12.

[0032] Reference Figure 3 There are two first power contact terminals 210 symmetrically arranged in the first mounting groove 21 ; there are two first signal contact terminals 211 symmetrically arranged in the first mounting groove 21 .

[0033] Furthermore, the design of the first mounting boss 20 and the first mounting groove 21 on the thruster 2 and the second mounting groove 11 and the second mounting boss 12 on the power supply 1 further facilitates the power supply installation process, and the alignment of the power end and the signal end holes increases the convenience and accuracy of the operation.

[0034] Reference Figure 4 、 Figure 6 and Figure 7 The power supply 1 also includes a battery compartment 100, a mounting bracket 101 is arranged behind the top of the battery compartment 100, and a disassembly guide groove 13 is provided on the rear side of the battery compartment 100 in the vertical direction. The front part of the propeller 2 is provided with a disassembly guide plate 22 that can move up and down in the disassembly guide groove 13. Figure 6Side ears 14 that can prevent the disassembly guide plate 22 from separating from the disassembly guide groove 13 are provided on both sides of the upper part of the disassembly guide groove 13.

[0035] Furthermore, during installation, the disassembly guide plate 22 at the front of the thruster 2 must first be installed into the disassembly guide slot 13 on the rear side of the battery compartment 100. Then, the power source 1 is moved downward along the guide slot, so that the mounting bracket 101 gradually approaches the upper end of the thruster 2, and finally the power source 1 is installed in place. The side ears 14 provided on both sides of the upper portion of the disassembly guide slot 13 can limit the relative position of the power source 1 and the thruster 2, further increasing the accuracy and convenience of the installation process.

[0036] Compared with traditional electronic protection circuits or software control methods, the solution provided by the present invention does not require additional complex hardware support or software programming, simplifies the architecture of the entire system, allows users to perform battery replacement operations more conveniently, and also reduces maintenance difficulty.

Claims

1. A detachable battery connection structure for a marine propeller, characterized in that: The invention comprises a propeller (2) and a power supply (1) detachably mounted on the propeller (2); the propeller (2) is provided with a first power contact terminal (210) and a first signal contact terminal (211); the power supply (1) is provided with a second power contact terminal (120) capable of contacting and cooperating with the first power contact terminal (210), and a second signal contact terminal (121) capable of contacting and cooperating with the first signal contact terminal (211); the first signal contact terminal (211) can contact and cooperate with the second signal contact terminal (121) after the first power contact terminal (210) and the second power contact terminal (120) are in contact and cooperating.

2. A detachable battery connection structure for a marine propulsion unit according to claim 1, characterized in that: The first power contact terminal (210) and the first signal contact terminal (211) are cylindrical, and the horizontal height of the column of the first power contact terminal (210) is higher than that of the first signal contact terminal (211); the second power contact terminal (120) and the second signal contact terminal (121) are cylindrical concave holes, and the column of the first signal contact terminal (211) can be in contact with the concave hole of the second signal contact terminal (121) after the column of the first power contact terminal (210) is in contact with the concave hole of the second power contact terminal (120).

3. A detachable battery connection structure for a marine propulsion unit according to claim 2, characterized in that: A first mounting boss (20) is horizontally arranged on the propeller (2), a first mounting groove (21) is formed in the middle of the first mounting boss (20), and the first power contact terminal (210) and the first signal contact terminal (211) are arranged in the first mounting groove (21); The power supply (1) comprises a mounting frame (101), a second mounting groove (11) capable of being mounted in cooperation with a first mounting boss (20) is provided on a lower surface of the mounting frame (101), a second mounting boss (12) capable of being mounted in cooperation with the first mounting groove (21) is provided in the middle of the second mounting groove (11), and the second power contact terminal (120) and the second signal contact terminal (121) are provided in the second mounting boss (12).

4. A detachable battery connection structure for a marine propulsion unit according to claim 3, characterized in that: There are two first power contact terminals (210) arranged symmetrically in the first installation groove (21); there are two first signal contact terminals (211) arranged symmetrically in the first installation groove (21).

5. The detachable battery connection structure for a marine propulsion unit according to claim 3, characterized in that: The power source (1) further comprises a battery compartment (100), the mounting frame (101) being arranged behind the top of the battery compartment (100), the rear side surface of the battery compartment (100) being provided with an assembly and disassembly guide groove (13) in an up-and-down direction, and the front portion of the propeller (2) being provided with an assembly and disassembly guide plate (22) capable of moving up and down in the assembly and disassembly guide groove (13).

6. A detachable battery connection structure for a marine propulsion unit according to claim 5, characterized in that: Side ears (14) capable of preventing the disassembly guide plate (22) from escaping from the disassembly guide groove (13) are provided on both sides of the upper portion of the disassembly guide groove (13).

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