CN211642571U - Small-sized propeller for ship - Google Patents
Small-sized propeller for ship Download PDFInfo
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- CN211642571U CN211642571U CN201922485664.2U CN201922485664U CN211642571U CN 211642571 U CN211642571 U CN 211642571U CN 201922485664 U CN201922485664 U CN 201922485664U CN 211642571 U CN211642571 U CN 211642571U
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Abstract
The utility model relates to a small marine propeller, which comprises a main rod which is arranged in a hollow way; the power assembly is connected to the lower end of the main rod and comprises a motor and a propeller connected to the driving end of the motor; a head cover connected to the upper end of the main rod; a control circuit board waterproofly disposed in the head cover; the battery box penetrates through the head cover through a power cord and is electrically connected with the control circuit board; the control circuit board comprises a controller and a motor driving circuit electrically connected with the controller, the motor driving circuit is electrically connected with the motor through a cable, an air inlet is formed in the front end face of the head cover, and an air outlet is formed in the rear portion of the head cover. This small-size marine propeller conveniently installs at ship different positions, and light in weight, and can guarantee the good waterproof nature of control circuit board and the good thermal diffusivity of control circuit board.
Description
Technical Field
The utility model relates to a small-size marine propeller.
Background
The electric ship propeller is a device which is arranged on a ship body and is used for driving an electric ship to advance. The existing marine propulsion is generally applied to ships with larger volume or heavier load, for example, the chinese utility model patent with the publication number CN204802061U (application number 201520397274.9) discloses an electric ship propeller with brushless motor, wherein the shell volume of the motor used for the lower part of the disclosed propeller is relatively larger, the corresponding motor driving circuit used for driving the motor is also matched with the motor installation shell, and the shell is usually made of metal material, the heat generated by the power element on the motor driving circuit in the working process can be conducted to the shell, and then the shell is placed in water during working, the shell dissipates heat in a water cooling mode, thus ensuring the normal work of the power element on the motor driving circuit.
The boat has various types, the demand of small boats such as inflatable boats and single canoes is increased along with the increase of leisure activities of people, the requirement of the small boats on portability is high, the propeller needs to be designed, the miniaturization of the propeller needs to be considered, the adaptability of installation on various types of small boats needs to be considered, and the weight problem of the propeller needs to be considered.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a convenient small-size marine propeller of installing in ship different positions is provided to above-mentioned prior art, light in weight, and can guarantee the good waterproof nature of control circuit board and the good thermal diffusivity of control circuit board.
The utility model provides a technical scheme that above-mentioned problem adopted does: a propeller for small ships comprises
The main rod is arranged in a hollow manner;
the power assembly is connected to the lower end of the main rod and comprises a motor and a propeller connected to the driving end of the motor;
a head cover connected to the upper end of the main rod;
a control circuit board waterproofly disposed in the head cover;
the battery box penetrates through the head cover through a power cord and is electrically connected with the control circuit board;
the method is characterized in that: also comprises
The control circuit board comprises a controller and a motor driving circuit electrically connected with the controller, the motor driving circuit is electrically connected with a motor through a cable, an air inlet is formed in the front end face of the head cover, and an air outlet is formed in the rear portion of the head cover.
In order to further cool down power elements in a motor driving circuit on the control circuit board, a heat dissipation block is arranged in the head cover, and the control circuit board is arranged on the heat dissipation block.
In order to better derive heat on the power element and accelerate the heat dissipation speed of the power element, the motor driving circuit comprises a power element, a heat conduction assembly is arranged on the heat dissipation block corresponding to the position of the power element, and the power element is attached to the heat conduction assembly.
Preferably, the heat conducting assembly comprises a heat conducting pad, a heat conducting metal sheet and a heat conducting silicone grease layer, the power element is attached to the heat conducting pad, the heat conducting silicone grease layer is attached to the heat dissipation block, and the heat conducting metal sheet is sandwiched between the heat conducting pad and the heat conducting silicone grease layer.
In order to improve the heat dissipation capability of the heat dissipation block and further improve the heat dissipation effect on the control circuit board, the air outlet is arranged on the bottom plate of the head cover corresponding to the position of the heat dissipation block.
In order to ensure the waterproof property of the control circuit board, a groove is formed in the upper surface of the heat dissipation block, and the control circuit board is arranged in the groove in an embedding mode.
In order to ensure the waterproofness of the power line connecting position, the power line is connected to the control circuit board through the model airplane plug, the model airplane plug comprises a model airplane female head electrically connected to the control circuit board and a model airplane male head connected to the power line, a first adhesive heat-shrinkable tube is sleeved outside the model airplane female head, and a second adhesive heat-shrinkable tube is sleeved outside the model airplane male head.
Preferably, the bottom of the head cover is provided with a first connecting hole for connecting the main rod and a second connecting hole for passing the power line;
the top of the main rod is connected with a first cable waterproof connector, the first cable waterproof connector is inserted into the first connecting hole, and the cable penetrates through the first cable waterproof connector and penetrates into the main rod;
the power line is fixed in the second connecting hole through a second cable waterproof connector.
In order to facilitate the discharge of water entering the head cover and improve the working safety of the control circuit board, an annular connecting part extends downwards along the circumferential direction at the position of the bottom of the head cover corresponding to the first connecting hole, and the waterproof joint is inserted in the connecting part;
the connecting portion are provided with an annular groove with an upward opening along the circumferential direction, and a water outlet for water leakage is formed in the bottom of the annular groove.
In order to improve the strength of the connecting part, at least two reinforcing ribs are distributed in the ring groove along the circumferential direction and are connected with two side walls of the ring groove.
Compared with the prior art, the utility model has the advantages of: the utility model provides a small-size marine propeller, in order to guarantee to install on various types of small-size boats, to the condition that needs were installed at small-size boat middle part very much, then move driving motor's motor drive circuit on setting up the control circuit board of skull, and only set up motor and screw at the lower extreme of mobile jib in order to reduce the volume, guarantee to install in less mounting hole. The corresponding motor driving circuit also does not need to carry out water-cooling heat dissipation, can use the lighter material installation motor of quality such as plastics, and then reduces the weight of this small-size marine propeller for this small-size marine propeller portability is better. This small-size marine propeller has air current through the last air inlet of skull and air outlet at the propulsion in-process, and then realizes the cooling to motor drive circuit on the control circuit board, satisfies motor drive circuit's on the control circuit board heat dissipation requirement, guarantees that control circuit board normally works. Meanwhile, the waterproof setting of the circuit board is controlled, the waterproof requirement is met, and the normal work of the circuit board is guaranteed.
Drawings
Fig. 1 is a perspective view of a propeller for a small ship according to an embodiment of the present invention.
Fig. 2 is a partial cross-sectional view of a propeller for a small boat according to an embodiment of the present invention.
Fig. 3 is a partially enlarged view of fig. 2.
Fig. 4 is a schematic diagram of the connection of the power line on the control circuit board according to the embodiment of the present invention.
Fig. 5 is a perspective view of the heat dissipation block and the control circuit board in the embodiment of the present invention.
Fig. 6 is a cross-sectional view of fig. 5.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
The propeller for small ships in this embodiment is installed on the hull and used, the propeller for small ships in this embodiment is mainly used for small ships, small ships are various, the installation positions of the propeller are also various, the propeller is installed at the front of the ship and at the middle of the ship, when the propeller is installed at the middle of the ship, the ship is generally provided with an installation hole for installing the propeller, the propeller is limited by the size of the ship, the aperture of the installation hole is not large, and the lower end of the propeller for small ships is required to be small enough to be installed in the installation hole.
As shown in fig. 1 to 6, the propeller for a small boat in the present embodiment includes the following components.
The mobile jib 1, cavity setting, the mobile jib 1 in this implementation link up from top to bottom, can adopt the body to the cable that conveniently supplies to follow passes through.
Power component 2, connect the lower extreme at mobile jib 1, this power component 2 includes motor 21 and connects the screw 22 on the motor 21 drive end, in order to guarantee the wholeness of structure, is provided with the installation shell usually, and the lower extreme at mobile jib 1 is connected to the installation shell, and motor 21 installs in the installation shell, and screw 22 is located outside the installation shell to connecting portion 13 of screw 22 stretches into in the casing and connects on the drive end of motor 21. In this embodiment, since the motor drive circuit described below is not mounted in the mounting case, there is no heat dissipation requirement for the material selection of the mounting case, and in order to satisfy the portability of the small-sized ship on which the small-sized ship propeller is mounted, a light-weight mounting case such as a plastic case can be used for the mounting case.
When in use, the power assembly 2 is positioned below the ship and extends into the water body so as to drive the ship to move, and therefore when in installation, the power assembly 2 needs to extend below the ship. In the present embodiment, only the motor 21 is installed in the installation case without installing the motor driving circuit board for driving the motor 21, and accordingly, the size of the power module 2 is reduced, and the small marine propeller is conveniently installed on various small ships, even if the installation hole of the ship is in the middle, and the power module 2 is small enough to penetrate through the installation hole to extend below the ship.
The skull 3 is connected in the upper end of mobile jib 1, and for the convenience of installing, this skull 3 is including the upper cover and the lower cover of mutual lock.
And a control circuit board 4 disposed in the head cover 3 in a waterproof manner. The control circuit board 4 includes a controller and a motor driving circuit electrically connected to the controller, and the motor driving circuit is electrically connected to the motor 21 through a cable, so that the cable passes through the head cover 3 and then passes through the main rod 1 to be connected to a terminal of the motor 21. The motor driving circuit can generate heat during working, and particularly, the motor driving circuit is provided with a power element which generates heat seriously during working, so that the motor driving circuit needs to be cooled. In this embodiment, an air inlet 31 is provided on the front end surface of the head cover 3, and an air outlet 32 is provided at the rear portion of the head cover 3.
As shown in fig. 5, the heat dissipating block 6 is provided in the head cover 3, and the control circuit board 4 is provided on the heat dissipating block 6. The heat dissipation of the control circuit board 4 can be accelerated by the heat dissipation block 6, and the air outlet 32 is arranged on the bottom plate of the head cover 3 corresponding to the position of the heat dissipation block 6, so that the heat dissipation of the heat dissipation block 6 can be further accelerated. In addition, a heat conducting component 7 is arranged on the heat dissipation block 6 corresponding to the power element, and the power element is attached to the heat conducting component 7. As shown in fig. 6, the heat conducting assembly 7 includes a heat conducting pad 71, a heat conducting metal sheet 72, and a heat conducting silicone layer 73, the power element is attached to the heat conducting pad 71, the heat conducting silicone layer 73 is attached to the heat dissipating block 6, and the heat conducting metal sheet 72 is sandwiched between the heat conducting pad 71 and the heat conducting silicone layer 73. In this embodiment, the heat-conducting metal sheet 72 is a copper sheet, which has good heat-conducting property. During operation, heat conduction subassembly 7 can be fast derive the heat that power element produced to radiating block 6 on, has a plurality of heat dissipation teeth on the radiating block 6, and the cross-section of heat dissipation tooth is wavy, so increases the area of contact of heat dissipation tooth and air for the heat dissipation. The ship is at the in-process that advances, can produce the air current, and the air current enters into skull 3 through the air intake 31 of skull 3 to discharge from air outlet 32 through control circuit board 4, radiating block 6, and then realize the cooling to control circuit board 4, guarantee that control circuit board 4 normally carries out work.
In order to ensure the waterproof property of the control circuit board 4, a groove is formed in the upper surface of the heat dissipation block 6, the control circuit board 4 is arranged in the groove in a sealing mode, and after the sealing mode is conducted, the sealing glue covers the control circuit board 4 and is flush with the upper edge of the groove. Usually, a buzzer is further disposed on the control circuit board 4 for alarming, and thus a waterproof sound-transmitting film needs to be covered on the buzzer.
And the battery box 5 is electrically connected with the control circuit board 4 through a power cord passing through the head cover 3. In order to ensure the waterproof performance of the connection position of the power line, the power line is connected to the control circuit board 4 through the model airplane plug 8, the model airplane plug 8 comprises a model airplane female head 81 electrically connected to the control circuit board 4 and a model airplane male head 82 connected to the power line, a first adhesive heat-shrinkable tube 83 is sleeved outside the model airplane female head 81, and a second adhesive heat-shrinkable tube 84 is sleeved outside the model airplane male head 82. During installation, before the control circuit board 4 is encapsulated, the first adhesive heat-shrinkable tube 83 is shrunk in place at the female head 81 of the model airplane, then encapsulation is carried out, the male head 82 of the model airplane is inserted on the female head 81 of the model airplane, the second adhesive heat-shrinkable tube 84 is pulled down to cover the upper end of the first adhesive heat-shrinkable tube 83, and then the second adhesive heat-shrinkable tube 84 is shrunk in place, so that the second adhesive heat-shrinkable tube 84 has an overlapping area and plays a role in water proofing. During maintenance, the second glue-containing heat shrink tube 84 is peeled off by using a tool, and then the model airplane male head 82 is pulled out from the model airplane female head 81. Of course, the cable connecting the motor 21 and the control circuit board 4 may also be connected in this manner in a waterproof manner.
The head cover 3 is provided at the bottom with a first connection hole for the connection of the main rod 1 and a second connection hole for the power line to pass through. The top of mobile jib 1 is connected with first cable water joint 11, and first water joint 11 inserts and establishes in first connecting hole, and the cable passes first cable water joint 11 and penetrates in mobile jib 1. The power cord is fixed in the second connecting hole through a second cable waterproof joint 12.
Because on this small-size marine propeller mainly used small-size ship, the probability that takes place the ship and topple when using is higher than large-scale ship, and has seted up air intake 31 and air outlet 32 again on the skull 3, then intake easily in the skull 3, even the hookup location of control circuit board 4 and power cord, cable has all carried out water repellent, but if water can't in time discharge in skull 3, still there is the potential safety hazard. In order to facilitate the drainage of water entering the head cover 3 and improve the safety of the operation of the control circuit board 4, an annular connecting part 13 extends downwards along the circumferential direction at the position of the bottom of the head cover 3 corresponding to the first connecting hole, and a waterproof joint is plugged in the connecting part 13. An annular groove 131 with an upward opening is arranged on the connecting part 13 along the circumferential direction, a water outlet 132 for water leakage is arranged at the bottom of the annular groove 131, and the water inlet in the head cover 3 can be timely discharged through the water outlet. In order to improve the strength of the connecting portion 13, at least two reinforcing ribs are distributed in the ring groove 131 along the circumferential direction, and the reinforcing ribs are connected with two side walls of the ring groove 131.
This small-size marine propeller when the installation, if the mounted position on the ship is at the front end of ship, then with 1 joint of mobile jib in the mounting groove of ship for power component 2 is located the below of ship, still is provided with mounted frame 10 on the mobile jib 1 simultaneously and realizes the fixed mounting of this small-size marine propeller on the ship. If the mounting location on the vessel is in the middle of the vessel, the power module 2 extends from the mounting hole on the vessel to below the vessel while using the fixed mounting of the hanger 10 on the vessel.
The utility model provides a small-size marine propeller, in order to guarantee to install on various types of small-size boats, to the condition that needs were installed at small-size boat middle part very much, then move driving motor 21's motor drive circuit on the control circuit board 4 that sets up skull 3, and only set up motor 21 and screw 22 in order to reduce the volume at the lower extreme of mobile jib 1, guarantee to install in less mounting hole. The corresponding motor driving circuit also does not need to be cooled by water, and the motor 21 can be installed by using materials with lighter weight such as plastics, so that the weight of the small marine propeller is reduced, and the portability of the small marine propeller is better. This small-size marine propeller has the air current through air inlet 31 and air outlet 32 on the skull 3 at the propulsion in-process, and then realizes the cooling to motor drive circuit on control circuit board 4, satisfies motor drive circuit's on control circuit board 4 heat dissipation requirement, guarantees that control circuit board 4 normally works. And meanwhile, the control circuit board 4 is waterproof, so that the waterproof requirement is met, and the normal work of the circuit board is ensured.
Claims (10)
1. A propeller for small ships comprises
The main rod (1) is arranged in a hollow manner;
the power assembly (2) is connected to the lower end of the main rod (1) and comprises a motor (21) and a propeller (22) connected to the driving end of the motor (21);
a head cover (3) connected to the upper end of the main rod (1);
a control circuit board (4) which is arranged in the head cover (3) in a waterproof manner;
the battery box (5) penetrates through the head cover (3) through a power cord and is electrically connected with the control circuit board (4);
the method is characterized in that: also comprises
Control circuit board (4) include the controller and with the motor drive circuit that the controller electricity is connected, motor drive circuit passes through the cable and is connected with motor (21) electricity, be provided with air intake (31) on the preceding terminal surface of skull (3), the rear portion of skull (3) is provided with air outlet (32).
2. A thruster for small boats as defined in claim 1, wherein: a heat dissipation block (6) is arranged in the head cover (3), and the control circuit board (4) is arranged on the heat dissipation block (6).
3. A thruster for small boats as defined in claim 1, wherein: the motor driving circuit comprises a power element, a heat conduction assembly (7) is arranged on the heat dissipation block (6) corresponding to the position of the power element, and the power element is attached to the heat conduction assembly (7).
4. A thruster for small boats as defined in claim 3, wherein: the heat conduction assembly (7) comprises a heat conduction pad (71), a heat conduction metal sheet (72) and a heat conduction silicone grease layer (73), the power element is attached to the heat conduction pad (71), the heat conduction silicone grease layer (73) is attached to the heat dissipation block (6), and the heat conduction metal sheet (72) is clamped between the heat conduction pad (71) and the heat conduction silicone grease layer (73).
5. A thruster for small boats as defined in claim 2, wherein: the air outlet (32) is arranged on the bottom plate of the head cover (3) corresponding to the position of the heat dissipation block (6).
6. A thruster for small boats as defined in claim 2, wherein: the upper surface of the heat dissipation block (6) is provided with a groove, and the control circuit board (4) is arranged in the groove in a sealing mode.
7. A propeller for small ships according to any one of claims 1 to 6, wherein: the power cord passes through model aeroplane and model ship plug (8) to be connected on control circuit board (4), model aeroplane and model ship plug (8) are including female head (81) of model aeroplane and model ship male head (82) of connection on the power cord of electricity connection on control circuit board (4), female head (81) overcoat of model aeroplane and model ship is equipped with first adhesive heat shrink tube (83), the male head (82) overcoat of model aeroplane and model ship is equipped with second adhesive heat shrink tube (84).
8. A propeller for small ships according to any one of claims 1 to 6, wherein: the bottom of the head cover (3) is provided with a first connecting hole for the main rod (1) to connect with and a second connecting hole for the power line to pass through;
the top of the main rod (1) is connected with a first cable waterproof connector (11), the first cable waterproof connector (11) is inserted into a first connecting hole, and the cable penetrates through the first cable waterproof connector (11) and penetrates into the main rod (1);
the power line is fixed in the second connecting hole through a second cable waterproof connector (12).
9. A thruster for small boats as defined in claim 8, wherein: an annular connecting part (13) extends downwards along the circumferential direction at the position of the bottom of the head cover (3) corresponding to the first connecting hole, and the waterproof joint is inserted in the connecting part (13);
an annular groove (131) with an upward opening is formed in the connecting portion (13) along the circumferential direction, and a water outlet (132) for water leakage is formed in the bottom of the annular groove (131).
10. A thruster for small boats as defined in claim 9, wherein: at least two reinforcing ribs are distributed in the annular groove (131) along the circumferential direction, and the reinforcing ribs are connected with two side walls of the annular groove (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922485664.2U CN211642571U (en) | 2019-12-30 | 2019-12-30 | Small-sized propeller for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922485664.2U CN211642571U (en) | 2019-12-30 | 2019-12-30 | Small-sized propeller for ship |
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| Publication Number | Publication Date |
|---|---|
| CN211642571U true CN211642571U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922485664.2U Active CN211642571U (en) | 2019-12-30 | 2019-12-30 | Small-sized propeller for ship |
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| Country | Link |
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| CN (1) | CN211642571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110291005A (en) * | 2017-02-16 | 2019-09-27 | 维思推进系统 | Propeller for being promoted to ship |
-
2019
- 2019-12-30 CN CN201922485664.2U patent/CN211642571U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110291005A (en) * | 2017-02-16 | 2019-09-27 | 维思推进系统 | Propeller for being promoted to ship |
| CN110291005B (en) * | 2017-02-16 | 2021-05-25 | 维思推进系统 | Propeller for propelling ship |
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