Electric connection device and power conversion ship

Abstract

The utility model provides an electric connection device and a battery changing ship, which are applied to the technical field of ship battery changing, and the electric connection device comprises an electric connector, a shell, a protective cover and a protective sleeve, the electric connector is used for changing the electricity of the ship, and the shell, the protective cover and the protective sleeve are used for protecting the electric connector against water and damp air. The electric connection device further comprises a motor, a base and a guide rail arranged on the base, and the shell and the electric connector are movably connected with the guide rail after being fixed. Under the driving of the motor, the shell moves on the guide rail and drives the electric connector to move, so that the automatic butt joint of the electric connector is realized.

Description

Technical Field

[0001] The present application relates to the technical field of ship battery replacement, and in particular to an electrical connection device and a battery replacement ship. Background Art

[0002] In the field of ship power replacement, container-type power battery boxes are often used for battery replacement, and the battery boxes are hoisted and connected to the ship's power system. The power supply is completed by connecting the electrical connection device at the battery box end with the electrical connection device at the equipment end on the ship. Side power replacement means setting the electrical connection device on the side of the battery box. Given that the working environment of ships is mostly humid, moisture or rain may penetrate into the electrical connection device, thereby affecting its service life.

[0003] According to the disclosure of the Chinese invention patent with application number 202111668391.0, the patent discloses an external waterproof device, an electrical connection device and a ship power exchange system. The external waterproof device includes a cover body and a waterproof assembly. One end of the cover body is open, and the waterproof assembly includes a protective door, which is arranged at the open end of the cover body and can slide relative to the open end to open or close. Although this solution has good protection against rainy, snowy weather and waves, its protective structure is complex in design and has a high production cost. However, in high humidity environments, air condensation is particularly prone to occur. The patented design is not completely sealed, which may cause condensation on the positive and negative poles of the high-voltage terminals, thereby causing a safety accident of equipment short circuit. Utility Model Content

[0004] In view of this, the present application provides an electrical connection device and a battery-exchange ship, which can achieve the purposes of dustproof, waterproof, moisture-proof and condensation-proof by sealing and protecting the electrical connector.

[0005] The utility model provides the following technical solutions:

[0006] The utility model provides an electrical connection device in a first aspect, which is installed on a ship and electrically connected to an electrical connection mechanism on a battery box. The electrical connection device comprises: a shell, a mounting frame arranged in the shell, a floating plate arranged on the outer side of one end of the mounting frame, and an electrical connector fixed on the floating plate. A detachable protective cover is provided on a side of the floating plate away from the mounting frame, and the protective cover is provided on a first end of the electrical connector. A protective cover is provided on a side of the floating plate close to the mounting frame and covers the second end of the electrical connector.

[0007] In this solution, the electrical connection device installed on the ship is connected to the electrical connection mechanism installed on the battery box to replace the power of the ship; the electrical connection device includes a floating plate and an electrical connector. By respectively arranging a protective cover and a protective cover on both sides of the floating plate, the electrical connector on the floating plate is sealed and protected, and the electrical connector is completely isolated from the external environment, achieving the effects of waterproofing, dustproofing, moisture-proofing, and anti-condensation.

[0008] Furthermore, a first protective plate is provided at one end of the mounting frame facing the floating plate. The first protective plate is disposed around the floating plate along the circumference of the floating plate and extends from the mounting frame to the floating plate.

[0009] In this solution, since the floating plate is arranged on the outside of one end of the mounting frame, there is a gap on the side of the floating plate; the first protective plate circumferentially surrounding the floating plate can further seal the electrical connector on the floating plate, so that the gap between the floating plate and the mounting frame is sealed, thereby enhancing the waterproof effect of the electrical connection device.

[0010] Furthermore, a second protective plate is provided below one end of the housing close to the floating plate. The second protective plate is located below the first protective plate and is arranged parallel to and extends in the same direction as the first protective plate.

[0011] In the present solution, a second protective plate is further provided under the outer shell, which is arranged parallel to the first protective plate to waterproof the electric connector from the lower end; because the battery box is placed on the deck when installed on the ship, if the ship encounters wind and waves when sailing on the water, water may be splashed up from below, and there may also be accumulated water on the deck. The ship is affected by the force of the water surface and wind, and the bumps generated during the battery replacement process and driving may cause the accumulated water to splash into the electric connector. Therefore, a second protective plate is further provided below, which can further improve the waterproof protection of the lower end of the electric connector to prevent water from entering the electric connector.

[0012] Preferably, a water receiving pan is provided on the top of the mounting frame, the water receiving pan is located above the first protective plate and extends from the mounting frame to the floating plate, and the projection of the water receiving pan in the vertical direction at least covers the entire electrical connector.

[0013] In this solution, a water receiving pan is arranged on the top of the mounting frame to further waterproof the top of the electrical connector from the upper end; in rainy weather, rainwater will fall on the water receiving pan and drain out from the water receiving pan. The projection of the water receiving pan arranged above the electrical connector in the vertical direction covers the entire electrical connector, which can fully protect the electrical connector and effectively prevent rainwater from entering the electrical connector, so that rainwater flows out from the edge of the water receiving pan.

[0014] Preferably, a fixing plate is provided at one end of the shell away from the floating plate to close the shell, and a first groove is provided at the lower end of the fixing plate, the first groove is adapted to the drag chain so that the drag chain can extend to the shell, and a cable electrically connected to the second end of the electrical connector is provided in the drag chain.

[0015] In this solution, the electrical connection device is further waterproofed by providing a fixing plate at the rear end of the electrical connection device; since the second end of the electrical connection head needs to be electrically connected to the drag chain, the second end of the electrical connection head needs to be waterproofed behind the connection part, and by providing a fixing plate and a first groove on the fixing plate, the drag chain can pass through the fixing plate to be electrically connected to the second end of the electrical connection head, and can also achieve the effect of waterproofing the second end of the electrical connection head.

[0016] Furthermore, the electrical connection device also includes a base and a guide rail arranged on the base, the outer shell can move relative to the base along the guide rail to drive the installation frame to move to achieve the docking of the electrical connector and the electrical connection mechanism, and the lower ends of the outer shell on both sides along its moving direction are provided with a third protective plate, the third protective plate is located on the outside of the guide rail and extends downward from the outer shell to below the guide rail; the third protective plate is provided with a first protective shell at one end away from the floating plate, and the first protective shell covers the guide rail.

[0017] In this solution, in order to achieve the docking of the electrical connection device and the electrical connection mechanism, a guide rail is arranged on the base so that the electrical connection device can slide relative to the base; because the guide rail structure cannot be exposed to water and humid environment for a long time, the third protective plate is arranged on the outside of the guide rail, and the third protective plate extends to the bottom of the guide rail; at the same time, in order to prevent water from entering from above the guide rail, the first protective shell can always cover the guide rail during the movement of the electrical connector without affecting the sliding of the outer shell, so as to prevent rainwater, dust, etc. from falling into the guide rail and affecting its function and service life.

[0018] Preferably, there are two guide rails, which are arranged on both sides of the base along the moving direction of the shell. A motor is provided at one end of the base away from the floating plate to drive the shell to move the electrical connector. The motor is located between the two guide rails and a second protective shell is provided above it.

[0019] In this solution, two guide rails are set on both sides of the base to achieve stable movement of the shell and prevent the shell from tilting to both sides; at the same time, a motor is also set at one end of the floating plate, and the shell and the electrical connector installed on the shell are driven by the motor to move synchronously to achieve automatic docking of the electrical connector; the first end of the electrode head extends forward and docks with the corresponding electrical connection mechanism to achieve automatic docking of the entire electrical connection device, and one-button seamless connection operation can be achieved without the assistance of sailors. The degree of automation is high, and it is especially suitable for battery replacement operations in harsh environments such as cloudy and rainy weather. At the same time, a second protective shell is set above the motor to protect the motor from erosion by rain, seawater, dust, etc.

[0020] Furthermore, the protective cover is configured as a cavity structure with an opening on one side to accommodate the second end of the electrical connector, and the open end of the cavity structure is connected to the floating plate to form an enclosed space; the end of the cavity structure away from the opening is provided with a through hole for the cable to enter, and a seal is used between the through hole and the cable.

[0021] In this solution, the protective cover is provided as a cavity structure with one side open so that it can completely fit the second end of the electrical connector, and the open end of the protective cover is connected to the floating plate, so that the second end of the electrical connector is completely sealed; because the second end of the electrical connector is also connected to a cable, a through hole is provided on the side of the protective cover away from the open end so that the cable can pass through the protective cover and be led out from the second end of the electrical connector, and a sealing member is provided at the junction of the cable and the through hole, so as to enhance the waterproof effect of the second end of the electrical connector.

[0022] Furthermore, a homing box is provided on the base for placing the protective cover that has been separated from the floating plate, and a homing detection sensor for detecting whether the cover shell exists is installed in the homing box.

[0023] In this solution, by configuring a homing box and a homing detection sensor, only when the cover is correctly placed on the homing box and the homing detection sensor detects a homing signal can the device be started to dock the electrical connection device with the battery box, which can ensure that the electrical connector of the electrical connection device is docked correctly and achieve the purpose of error prevention and error correction. If the cover homing signal is not detected, the system reports a protective cover homing failure. After manually checking the cover position and handling the failure, reset the device first and then start the device with one button to start the connection.

[0024] Preferably, the protective cover comprises: a cover shell and a locking member movably connected to the cover shell, the locking member being movable relative to the cover shell to switch between an unlocked position and a locked position; the locking member being movably connected to the cover shell, and being movable relative to the cover shell to switch between an unlocked position and a locked position, and when the locking member is switched to the locked position, the locking member can cooperate with the floating plate to make the cover shell in a locked state and cover the floating plate to achieve sealing protection for the electrical connector; when the locking member is switched to the unlocked position, the locking member can disengage from the floating plate and make the cover shell in an unlocked state and detach from the floating plate so that the electrical connector can dock with an external battery box to achieve electrical connection.

[0025] In this solution, the protective cover is configured with a cover shell and a locking piece to achieve a detachable connection between the cover shell and the floating plate. The purpose is that when the locking piece is in the locked position, the cover shell can be covered on the floating plate to achieve sealed protection for the electrical connectors on the floating plate, and the electrical connectors are completely isolated from the external environment, achieving the effects of waterproofing, dustproofing, moisture-proofing, and anti-condensation. In addition, switching the locking piece to the unlocked position can separate the cover shell from the floating plate, without affecting the docking of the electrical connectors on the battery-swapping ship with the battery box, where the battery box is mainly a box-type power battery box.

[0026] Preferably, the cover shell has a connecting protrusion extending toward the floating plate, and the connecting protrusion is arranged along the circumference of the cover shell to form a second groove in the middle of the cover shell to accommodate the electrical connector when the cover shell covers the floating plate; and / or, a sealing gasket is provided on the side of the cover shell facing the floating plate to fit the floating plate when the cover shell covers the floating plate.

[0027] In the present solution, a second groove can be formed in the middle of the cover shell by means of the circumferentially arranged connecting protrusions. When the cover shell is closed onto the floating plate, the second groove can seal and accommodate the electric connector. The cover shell protects the electric connector and will not bump or contact the electric connector. A sealing gasket is provided on the side of the cover shell facing the floating plate. The function of the sealing gasket is that when the locking member is switched to the locking position, the cover shell can be tightly fitted on the floating plate via the sealing gasket, so that the electric connector is completely sealed to avoid the influence of moisture and dust, which can further improve the dustproof, waterproof, moisture-proof and anti-condensation effects of the cover shell on the electric connector.

[0028] Furthermore, the locking member includes a locking rod that can be rotated relative to the cover shell, one end of the locking rod is provided with a locking flange extending in a radial direction, and a locking groove is provided on the floating plate. The locking flange can extend into the locking groove and rotate at a preset angle relative to the locking groove to engage with the locking groove to form a retaining structure.

[0029] In this solution, the locking member is switched to the locking position by rotating the locking rod in the forward direction, so that the locking flange falls into the locking groove to form a stop structure, and then the cover shell is closed on the floating plate; only by rotating the locking rod in the reverse direction to disengage the locking flange from the locking groove can the cover shell be removed from the floating plate to expose the electrical connector on the floating plate.

[0030] Preferably, a pressing mechanism for pressing the cover shell onto the floating plate is also installed on one end of the locking rod away from the locking flange.

[0031] In this solution, the cover can be pressed against the floating plate by providing a pressing mechanism, thereby improving the tightness between the cover and the floating plate, that is, ensuring that when the locking member is switched to the locking position, the second groove on one side of the cover can cover the electrical connector tightly. At the same time, the setting of the pressing mechanism ensures that after the lock rod rotates in the positive direction to drive the locking member to switch to the locking position, the locking rod will not rotate again due to the action of the pressing mechanism on the cover, thereby ensuring that the locking member remains in the locking position, thereby improving the stability and reliability of the cover in protecting the electrical connector.

[0032] Furthermore, the pressing mechanism includes a pressing locking handle hinged on the locking rod, and the pressing locking handle is provided with an eccentric flange at the hinge; when the locking member is switched to the locking position, the pressing locking handle rotates relative to the cover shell around the axial direction of the locking rod, thereby driving the locking flange extending into the locking groove to rotate a preset angle, so that the locking flange engages with the locking groove correspondingly, and then flips the eccentric flange of the pressing locking handle, and pushes the cover shell relatively along the axial direction of the locking rod so that the sealing gasket rests on the floating plate.

[0033] In this solution, the pressing mechanism adopts the eccentric movement of the eccentric flange. When the pressing and locking handle is flipped toward the cover shell, the cover shell can be forced to move closer to the floating plate along the axial direction of the locking rod, so that the sealing gasket rests on the floating plate, ensuring that the cover shell can cover the electrical connector tightly.

[0034] The utility model provides a battery-exchange ship in a second aspect, which comprises a hull, a battery box and an electrical connection device as described above.

[0035] In summary, compared with the prior art, the at least one technical solution adopted in the embodiments of this specification can achieve the following beneficial effects:

[0036] First, the electrical connection device of the utility model is connected with the electrical connection mechanism through the floating plate and the electrical connector. By respectively arranging a protective cover and a protective sleeve on both sides of the floating plate, the electrical connector on the floating plate is sealed and protected, and the electrical connector is completely isolated from the external environment, achieving the effects of waterproofing, dustproofing, moisture-proofing, and anti-condensation.

[0037] Second, the shell of the electrical connection device of the utility model is slidably connected by a guide rail installed on the base, and a motor is provided under the base. The shell and the electrical connector fixed on the shell are driven by the motor to move synchronously to realize automatic docking of the electrical connector; the first end of the electrode head extends forward and docks with the corresponding electrical connection mechanism to realize automatic docking of the entire electrical connection device. One-touch seamless connection operation can be achieved without the assistance of sailors, and the degree of automation is high. It is especially suitable for battery replacement operations in harsh environments such as rainy and cloudy weather.

[0038] Third, the cover shell of the protective cover of the utility model can be locked and installed on the floating plate, completely isolating the electrical connector on the floating plate from the external environment, and can play the role of waterproof, dustproof, moisture-proof and anti-condensation, thereby improving the protective performance of the protective cover and further improving the safety and stability of the entire electrical connection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 is a front perspective view of the electrical connection device of the present application with a protective cover;

[0041] Figure 2 is a front perspective view of the electrical connection device in the present application with the protective cover removed;

[0042] Figure 3 is a front view of the electrical connection device of the present application with a protective cover;

[0043] Figure 4 is a rear perspective view of the electrical connection device in the present application;

[0044] Figure 5 is a three-dimensional diagram of the protective cover in the present application;

[0045] Figure 6 It is an exploded view between the cover and the mounting plate in this application;

[0046] Figure 7 is a partially cutaway perspective view of the electrical connection shield in the present application;

[0047] Figure 8 is a three-dimensional diagram of a half-sectioned connecting seat in the present application;

[0048] Fig. 9 is a three-dimensional diagram of the locking member in the present application;

[0049] Fig.10 is an exploded view of the cover and the homing box in the present application;

[0050] Fig.11 It is a stereoscopic diagram of the electrical connection device in the present application being docked with a ship battery box;.

[0051] The names of the components corresponding to the reference numerals in the figures are: 100, electrical connection device; 1, electrical connector; 2, housing; 3, mounting frame; 4, floating plate; 5, protective cover; 51, housing; 52, locking member; 521, locking rod; 5221, locking flange; 5222, locking groove; 5231, press-lock handle; 5232, eccentric flange; 53, connecting protrusion; 54, second groove; 55, sealing pad; 56, connecting seat; 57, limiting protrusion Table; 6, protective cover; 61, through hole; 62, seal; 7, first protective plate; 8, second protective plate; 9, third protective plate; 10, water tray; 11, fixing plate; 111, first groove; 12, drag chain; 13, base; 14, guide rail; 15, first protective shell; 16, second protective shell; 17, motor; 18, homing box; 181, homing detection sensor; 182, protective plate; 183, positioning groove; 200, ship battery box. DETAILED DESCRIPTION

[0052] The following is a detailed description of the embodiments of the present application in conjunction with the accompanying drawings. Adaptive adjustment of the embodiments based on the modification of the beneficial effects in the content of the utility model

[0053] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0054] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0055] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0056] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0057] like Figure 1 and Figure 2 As shown, the present application provides an electrical connection device 100 installed on a ship, which is electrically connected to an electrical connection mechanism on a battery box to replace power for the ship; the electrical connection device 100 includes: an outer shell 2, an installation frame 3 arranged in the outer shell 2, a floating plate 4 arranged on the outer side of one end of the installation frame 3, and an electric connector 1 fixed on the floating plate 4, a side of the floating plate 4 away from the installation frame 3 is provided with a detachable protective cover 5, the protective cover 5 is provided on the first end of the electric connector 1, and a side of the floating plate 4 close to the installation frame 3 is provided with a protective cover 6 covering the second end of the electric connector 1; the protective cover 5 and the protective cover 6 are used to achieve sealing protection of the electric connector 1 on the floating plate 4, and the electric connector 1 is completely isolated from the external environment, so as to achieve the effects of waterproofing, dustproofing, moisture-proofing and anti-condensation.

[0058] It should be pointed out that Figure 1 and Figure 2 There are two electrical connectors 1 shown in the figure, which are arranged in an up-down arrangement, and the protective cover 5 is in a square shape to cover the two electrical connectors 1; in other embodiments, the two electrical connectors 1 can also be arranged in a left-right arrangement, and the protective cover 5 is in a rectangular shape to cover the two electrical connectors 1. Furthermore, the shape of the protective cover 5 is not limited to a rectangle, and can be a circle or an irregular shape, etc., as long as the size is suitable to completely cover the electrical connector 1.

[0059] In some preferred embodiments, since the floating plate 4 is arranged outside one end of the mounting frame 3, there is a gap on the side of the floating plate 4, and the mounting frame 3 is provided with a first protective plate 7 at one end facing the floating plate 4; the first protective plate 7 is arranged around the floating plate 4 along the circumference of the floating plate 4 and extends from the mounting frame 3 to the floating plate 4, so as to further seal the electrical connector 1 on the floating plate 4, so that the gap between the floating plate 4 and the mounting frame 3 is sealed, and the waterproof effect of the electrical connection device is enhanced. It should be understood that the first protective plate 7 in this embodiment is arranged around the four sides, and in other embodiments, the first protective plate 7 can also be arranged around the floating plate 4 in a ring shape.

[0060] In some examples, the mounting frame 3 is a planar plate structure, and the floating plate 4 is fixed to the outside of the mounting frame 3 by an elastic device and floats in all directions relative to the mounting frame 3 .

[0061] In some preferred embodiments, a second protective plate 8 is provided below one end of the outer shell 2 close to the floating plate 4. The second protective plate 8 is located below the first protective plate 7 and is arranged parallel to the first protective plate 7 and extends in the same direction. The electric connector 1 is waterproofed from the lower end by being arranged parallel to the first protective plate 7. The ship is subjected to the action of the water surface and wind, and the turbulence generated during the battery replacement process or driving may cause the accumulated water on the deck and the water in the river basin where the ship is located to splash into the electric connector 1. Therefore, a second protective plate 8 is provided at one end of the outer shell 2 close to the floating plate 4, which can further improve the waterproof protection of the lower end of the electric connector 1 to prevent water from entering the electric connector 1.

[0062] It should be pointed out that Figure 1 and Figure 2 The second protective plate 8 shown in the figure is fixed to the housing 22, but the present specification does not limit the installation position of the second protective plate 8. The second protective plate 8 can be installed at any position in the electrical connection device 100, and it only needs to be located below the first protective plate 7 and arranged parallel to and extending in the same direction as the first protective plate 7. Furthermore, the extension amount of the second protective plate 8 toward one end of the floating plate 4 is greater than the extension amount of the first protective plate 7, so that in the vertical direction, the second protective plate 8 can fully cover the first protective plate 7 from below. At the same time, the projection of the second protective plate 8 in the vertical direction at least covers the entire electrical connector.

[0063] In some preferred embodiments, Figure 2As shown, a water receiving pan 10 is provided on the top of the mounting frame 3. The water receiving pan 10 is located above the first protective plate 7 and extends from the mounting frame 3 to the floating plate 4. The projection of the water receiving pan 10 in the vertical direction at least covers the entire electrical connector 1. By providing the water receiving pan 10 on the top of the mounting frame 3, the top of the electrical connector 1 is further waterproofed from the upper end. In rainy weather, rainwater will fall on the water receiving pan and drain out from the water receiving pan. The projection of the water receiving pan 10 provided above the electrical connector 1 in the vertical direction covers the entire electrical connector 1, which can effectively prevent rainwater from entering the electrical connector 1, so that rainwater flows out from the edge of the water receiving pan 10.

[0064] In some embodiments, Figure 3 As shown, a fixing plate 11 is provided at one end of the shell 2 away from the floating plate 4 to close the shell 2, and a first groove 111 is provided at the lower end of the fixing plate 11, and the first groove 111 is adapted to the drag chain 12 so that the drag chain 12 can extend to the shell 2, and a cable electrically connected to the second end of the electrical connector 1 is provided in the drag chain 12; the electrical connection device 100 is further waterproofed by arranging the fixing plate 11 at the rear end thereof; since the second end of the electrical connector needs to be electrically connected to the drag chain 12, the second end of the electrical connector needs to be waterproofed at the rear of the connection portion, and by arranging the fixing plate 11 and the first groove 111 on the fixing plate 11, the drag chain 12 can pass through the fixing plate 11 to be electrically connected to the second end of the electrical connector, and can also achieve the effect of waterproofing the second end of the electrical connector.

[0065] It should be pointed out that if Figure 3 As shown, the fixing plate 11 is composed of a plurality of sub-plates, and the first groove 111 is formed on the lower sub-plate. In other embodiments, the fixing plate 11 may also be a single plate structure, and the first groove 111 is formed at the lower end of the single plate.

[0066] In some embodiments, refer again to Figure 3The electrical connection device 100 also includes a base 13 and a guide rail 14 arranged on the base 13. The housing 2 can move relative to the base 13 along the guide rail 14, thereby driving the mounting frame 3 to move to achieve the docking of the electrical connector 1 and the electrical connection mechanism. The lower ends of the housing 2 on both sides along the moving direction are provided with third protective plates 9, which are located outside the guide rail 14 and extend downward from the housing 2 to below the guide rail 14; the end of the third protective plate 9 away from the floating plate 4 is provided with a first protective shell 15, and the first protective shell 15 covers the guide rail 14; in order to achieve the electrical connection device 100 and the electrical The docking of the connecting mechanism is achieved by setting a guide rail 14 on the base 13 so that the electrical connecting device 100 can slide relative to the base 13; since the guide rail 14 structure cannot be in contact with water and exposed to a humid environment for a long time, a third protective plate 9 is set on the outside of the guide rail 14, and the third protective plate 9 extends to the bottom of the guide rail 14; at the same time, in order to prevent water from entering the top of the guide rail 14, the first protective shell 15 can always cover the guide rail 14 during the movement of the electric connector 1 without affecting the sliding of the outer shell 2, so as to prevent rainwater, dust, etc. from falling into the guide rail 14 and affecting its function and service life.

[0067] It should be noted that, in this embodiment, according to Figure 3 As shown, there are two guide rails 14, which are arranged on both sides of the base 13 along the moving direction of the shell 2. A motor 17 is provided at one end of the base 13 away from the floating plate 4 to drive the shell 2 to drive the electric connector 1 to move. The motor 17 is located between the two guide rails 14, and a second protective shell 16 is provided above the motor 17. However, it should be understood that the provision of two guide rails 14 is only preferred. In other embodiments, at least one guide rail 14 can be used to achieve the movement of the shell 2 along the guide rails 14. In this embodiment, two guide rails 14 are provided on both sides of the base 13 to achieve stable movement of the shell 2 and prevent the shell 2 from tilting to both sides. At the same time, a motor 17 is also provided at one end of the floating plate 4. The shell 2 and the electric connector 1 installed on the shell 2 are driven by the motor 17 to move synchronously, so as to achieve automatic docking of the electric connector 1. The first end of the electrode head extends forward and docks with the corresponding electric connection mechanism to achieve automatic docking of the entire electric connection device 100. One-key seamless connection operation can be achieved without the assistance of sailors, with a high degree of automation, and is particularly suitable for power replacement operations in harsh environments such as rainy and cloudy weather. At the same time, a second protective shell 16 is provided above the motor 17 to protect the motor 17 from being corroded by rain, sea water, dust and the like.

[0068] In a preferred embodiment, the protective cover 6 is configured as a cavity structure with an opening on one side to accommodate the second end of the electrical connector 1, and the open end of the cavity structure is connected to the floating plate 4 to form a closed space; a through hole 61 for the cable to enter is provided at the end of the cavity structure away from the opening, and a seal 62 is used to seal the through hole 61 and the cable.

[0069] In a preferred embodiment, the protective cover 6 is provided as a cavity structure with one side open so that it can completely fit the second end of the electrical connector 1, and the open end of the protective cover 6 is connected to the floating plate 4, so that the second end of the electrical connector 1 is completely sealed; because the second end of the electrical connector 1 is also connected to a cable, a through hole is provided on the side of the protective cover 6 away from the open end so that the cable can pass through the protective cover 6 and be led out from the second end of the electrical connector 1, and a sealing member 62 is provided at the junction of the cable and the through hole 61, so as to enhance the waterproof effect of the second end of the electrical connector 1.

[0070] In a preferred embodiment, Figure 6 As shown, the protective cover 5 includes: a cover shell 51 and a locking member 52 movably connected to the cover shell 51, and the locking member 52 can move relative to the cover shell 51 to switch between an unlocked position and a locked position; the locking member 52 is movably connected to the cover shell 51, and can move relative to the cover shell 51 to switch between an unlocked position and a locked position. When the locking member 52 is switched to the locked position, the locking member 52 can cooperate with the floating plate 4 to make the cover shell 51 in a locked state and cover the floating plate 4 to achieve sealing protection for the electric connector 1; when the locking member 52 is switched to the unlocked position, the locking member 52 can be released from the floating plate 4 and make the cover shell 51 in an unlocked state and detach from the floating plate 4 so that the electric connector 1 can dock with the external battery box to achieve electrical connection.

[0071] In a preferred embodiment, the protective cover 5 is configured with a cover shell 51 and a locking member 52 to achieve a detachable connection between the cover shell 51 and the floating plate 4. The purpose is that when the locking member 52 is in the locked position, the cover shell 51 can be covered on the floating plate 4 to achieve sealed protection for the electric connector 1 on the floating plate 4, and the electric connector 1 is completely isolated from the external environment to achieve the effects of waterproofing, dustproofing, moisture-proofing, and anti-condensation; in addition, switching the locking member 52 to the unlocked position can separate the cover shell 51 from the floating plate 4, without affecting the docking of the electric connector 1 on the battery-swapping ship with the battery box, where the battery box is mainly a box-type power battery box.

[0072] In a preferred embodiment, Fig. 9 As shown, a homing box 18 is provided on the base 13 for placing the protective cover 5 that has been separated from the floating plate 4, and a homing detection sensor 181 for detecting whether the cover shell 51 exists is installed in the homing box 18; by configuring the homing box 18 and the homing detection sensor 181, only when the cover shell 51 is correctly placed on the homing box 18 and the homing detection sensor 181 detects the homing signal can the device be started to dock the electrical connection device 100 with the battery box, which can ensure that the electrical connector 1 of the electrical connection device 100 is docked correctly and achieve the purpose of foolproofing and error correction; if the homing signal of the cover shell 51 is not detected, the system reports a homing failure of the protective cover 5. After manually checking the position of the cover shell 51 and handling the failure, the device is reset first and then started with one button to start the connection.

[0073] In some embodiments, along the direction in which the cover shell 51 covers or detaches from the floating plate 4, downwardly recessed positioning grooves 183 are respectively provided at both ends of the homing box 18 for placing the hanging ears of the cover shell 51, and a homing detection sensor 181 is respectively provided on both sides of one of the positioning grooves 183, and a protective plate 182 is provided at the upper end of the homing box 18 corresponding to the homing detection sensor 182 to protect the homing detection sensor 181.

[0074] The positioning groove 183 in this specification is used to quickly return the cover 51 to its original position; through the provided protective plate 182, the cover 51 will not hit the return detection sensor 181 during the process of returning the cover 51 to its original position.

[0075] In a preferred embodiment, Figure 7 The cover shell 51 shown has a connecting protrusion 53 extending toward the floating plate 4, and the connecting protrusion is arranged along the circumference of the cover shell 51 to form a second groove 54 in the middle of the cover shell 51 to accommodate the electrical connector 1 when the cover shell 51 is covered on the floating plate 4; preferably, a sealing gasket 55 is provided on the side of the cover shell 51 facing the floating plate 4 to fit the floating plate 4 when the cover shell 51 is covered on the floating plate 4.

[0076] In the present solution, a second groove 54 can be formed in the middle of the cover shell 51 by means of the circumferentially arranged connecting protrusion 53. When the cover shell 51 is covered on the floating plate 4, the second groove 54 can seal and accommodate the electric connector 1. The cover shell 51 can protect the electric connector 1 without bumping or contacting the electric connector 1. A sealing gasket 55 is provided on the side of the cover shell 51 facing the floating plate 4. The function of the sealing gasket 55 is that when the locking member 52 is switched to the locking position, the cover shell 51 can be tightly fitted on the floating plate 4 through the sealing gasket, so that the electric connector 1 is completely sealed to avoid the influence of moisture and dust, which can further improve the dustproof, waterproof, moisture-proof and anti-condensation effects of the cover shell 51 on the electric connector 1.

[0077] In a preferred embodiment, Figure 6 , Figure 7 and Fig. 9 As shown, the locking member 52 includes a locking rod 521 that can rotate relative to the cover shell 51, and one end of the locking rod 521 is provided with a locking flange 5221 extending in the radial direction. A locking groove 5222 is provided on the floating plate 4. The locking flange 5221 can extend into the locking groove 5222 and rotate at a preset angle relative to the locking groove 5222 to engage with the locking groove 5222 to form a retaining structure.

[0078] In this solution, the locking member 52 is switched to the locking position by rotating the locking rod 521 in the forward direction, so that the locking flange 5221 falls into the locking groove 5222 to form a stop structure, and then the cover shell 51 is covered on the floating plate 4; only by rotating the locking rod 521 in the reverse direction to disengage the locking flange 5221 from the locking groove 5222 can the cover shell 51 be removed from the floating plate 4 to expose the electrical connector 1 on the floating plate 4.

[0079] In some embodiments, the locking groove 5222 is a waist-shaped through hole provided on the floating plate 4 , and the shape of the locking flange 5221 corresponds to the waist-shaped through hole.

[0080] In some embodiments, an elastic sealing block for sealing the locking groove 5222 is installed on the side of the locking rod 521 close to the locking flange 5221 .

[0081] In the embodiment of the present specification, the locking groove 5222 is set as a waist-shaped through hole, and the locking flange 5221 corresponds to the waist-shaped through hole, so that the locking flange 5221 can easily enter and exit the waist-shaped through hole, and because they are all waist-shaped structures, after the locking flange 5221 enters the waist-shaped through hole, it can be rotated forward by a certain angle to form a stop structure between the locking flange 5221 and the waist-shaped through hole, so as to prevent the locking flange 5221 from being separated from the locking groove and ensure the reliability of the cover 51 covering the floating plate 4. When the cover 51 needs to be removed, the locking flange 5221 can be returned to the position where it can enter and exit the waist-shaped through hole by rotating it in the reverse direction at the same angle as the forward rotation, so that it can be separated, thereby realizing the separation between the cover 51 and the floating plate 4. On the contrary, when the cover 51 is installed, the locking flange 5221 can penetrate into the waist-shaped locking groove 5222, and then the locking flange 5221 is rotated by a preset angle to achieve locking cooperation with the locking groove 5222. The overall size of the locking flange 5221 is smaller than that of the waist-shaped locking groove 5222, and does not affect the overall installation and disassembly of the cover 51.

[0082] In a preferred embodiment, a pressing mechanism for pressing the cover 51 onto the floating plate 4 is also installed on one end of the locking rod 521 away from the locking flange 5221; by providing the pressing mechanism, the cover 51 can be pressed onto the floating plate 4, thereby improving the tightness between the cover 51 and the floating plate 4, that is, ensuring that when the locking member 52 is switched to the locking position, the second groove on one side of the cover 51 can tightly cover the electrical connector 1. At the same time, the setting of the pressing mechanism ensures that after the locking rod 521 rotates in the positive direction to drive the locking member 52 to switch to the locking position, the locking rod 521 will not rotate again due to the action of the pressing mechanism on the cover 51, thereby ensuring that the locking member 52 remains in the locking position, thereby improving the stability and reliability of the cover 51 in protecting the electrical connector 1.

[0083] In a preferred embodiment, Fig. 9As shown, the pressing mechanism includes a pressing lock handle 5231 hinged on the locking rod 521, and the pressing lock handle 5231 is provided with an eccentric flange 5232 at the hinge; when the locking member 52 is switched to the locking position, the pressing lock handle 5231 rotates relative to the cover 51 around the axial direction of the locking rod 521, thereby driving the locking flange 5221 extending into the locking groove 5222 to rotate by a preset angle, so that the locking flange 5221 is correspondingly engaged with the locking groove 5222, and then the pressing lock handle is flipped. The eccentric flange 5222 of 5231 relatively pushes the cover shell 51 along the axial direction of the locking rod 521 so that the sealing gasket 55 abuts against the floating plate 4; the pressing mechanism adopts the eccentric movement of the eccentric flange 5221. When the pressing and locking handle is flipped toward the cover shell 51, the cover shell 51 can be forced to move relatively toward the floating plate 4 along the axial direction of the locking rod 521, so that the sealing gasket 55 abuts against the floating plate 4, ensuring that the cover shell 51 can cover the electrical connector 1 in a sealed manner.

[0084] In some embodiments, Figure 6 , Figure 7 and Figure 8 As shown, a connecting seat that can be rotatably matched with the locking rod 521 is installed on the cover shell 51, and a limiting boss is provided on the connecting seat. When the locking handle 5231 is rotated to a position in contact with the limiting boss, the locking flange 5221 can be separated from the locking groove 5222.

[0085] In some embodiments, a sealing ring is installed between the connecting seat and the locking rod 521.

[0086] The embodiment of the present specification sets a limit boss as a positioning of the unlocking position to limit the rotation angle of the locking flange 5221 driven by the locking rod 521; especially when the locking member 52 needs to be adjusted to the unlocking position, the setting of the limit boss can clearly define the amount by which the locking rod 521 needs to be rotated, thereby avoiding insufficient or excessive rotation of the locking rod 521, which may cause the locking flange 5221 to be unable to disengage from the locking groove 5222, thereby ensuring the success rate of separation of the cover shell 51 and the floating plate 4 and improving efficiency.

[0087] Based on the same inventive concept, the embodiment of this specification also provides a battery-swap ship, including the electrical connection device 100 described in any one of the aforementioned embodiments, such as Figure 5 As shown, the battery-swapping ship adopts the bottom battery-swapping mode. After the electric connection device 100 is matched with the electric connection mechanism, the protective cover 5 is opened, and the motor 17 drives the electric connection device 100 to move along the guide rail 14 and extend to achieve automatic docking. There is no need for manual assistance by sailors, which is particularly suitable for use in rainy weather conditions.

[0088] In this specification, the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the embodiments described later, the description is relatively simple, and the relevant parts can be referred to the partial description of the previous embodiments.

[0089] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An electrical connection device, installed on a ship, electrically connected to an electrical connection mechanism on a battery box, characterized in that: It includes: housing , a mounting frame arranged in the shell, a floating plate arranged on the outside of one end of the mounting frame, and an electric connector fixed on the floating plate, a side of the floating plate away from the mounting frame is provided with a removable protective cover, the protective cover is provided on the first end of the electric connector, and a side of the floating plate close to the mounting frame is provided with a protective cover covering the second end of the electric connector.

2. An electrical connection device according to claim 1, characterized in that: A first protective plate is disposed at one end of the mounting frame facing the floating plate. The first protective plate is disposed around the floating plate along the circumference of the floating plate and extends from the mounting frame to the floating plate.

3. An electrical connection device as claimed in claim 2, characterized in that: A second protective plate is provided below one end of the housing close to the floating plate. The second protective plate is located below the first protective plate and is arranged parallel to and extends in the same direction as the first protective plate.

4. An electrical connection device as claimed in claim 2, characterized in that: A water receiving pan is provided on the top of the installation frame. The water receiving pan is located above the first protective plate and extends from the installation frame to the floating plate. The projection of the water receiving pan in the vertical direction at least covers the entire electrical connector.

5. An electrical connection device according to claim 1, characterized in that: A fixing plate is provided at one end of the shell away from the floating plate to close the shell, and a first groove is provided at the lower end of the fixing plate. The first groove is adapted to the drag chain so that the drag chain can extend to the shell, and a cable electrically connected to the second end of the electrical connector is provided in the drag chain.

6. An electrical connection device according to claim 1, characterized in that: The electrical connection device also includes a base and a guide rail arranged on the base, the shell can move relative to the base along the guide rail to drive the installation frame to move to achieve the docking of the electrical connector and the electrical connection mechanism, and the lower ends of both sides of the shell along its moving direction are provided with a third protective plate, the third protective plate is located on the outside of the guide rail and extends downward from the shell to below the guide rail; the end of the third protective plate away from the floating plate is provided with a first protective shell, and the first protective shell covers the guide rail.

7. An electrical connection device according to claim 6, characterized in that: There are two guide rails, which are arranged on both sides of the base along the moving direction of the shell. A motor is provided at one end of the base away from the floating plate to drive the shell to drive the electrical connector to move. The motor is located between the two guide rails and a second protective shell is provided above it.

8. An electrical connection device as claimed in claim 6, characterized in that: The protective cover is configured as a cavity structure with an opening on one side to accommodate the second end of the electrical connector, and the open end of the cavity structure is connected to the floating plate to form a closed space; the end of the cavity structure away from the opening is provided with a through hole for the cable to enter, and a seal is used between the through hole and the cable.

9. An electrical connection device as claimed in claim 8, characterized in that: A homing box is provided on the base for placing the protective cover that has been separated from the floating plate. A homing detection sensor for detecting whether the protective cover exists is installed in the homing box.

10. An electrical connection device according to any one of claims 1 to 9, characterized in that: The protective cover comprises: a cover shell and a locking member movably connected to the cover shell, wherein the locking member can move relative to the cover shell and switch between an unlocked position and a locked position; the locking member is movably connected to the cover shell and can move relative to the cover shell and switch between an unlocked position and a locked position, and when the locking member is switched to the locked position, the locking member can cooperate with the floating plate to make the cover shell in a locked state and cover the floating plate to achieve sealing protection for the electrical connector; when the locking member is switched to the unlocked position, the locking member can be released from the floating plate and make the cover shell in an unlocked state and detach from the floating plate so that the electrical connector can dock with an external battery box to achieve electrical connection.

11. An electrical connection device according to claim 10, characterized in that: The cover shell has a connecting protrusion extending toward the floating plate, and the connecting protrusion is arranged along the circumference of the cover shell to form a second groove in the middle of the cover shell to accommodate the electrical connector when the cover shell covers the floating plate; and / or, a sealing gasket is provided on the side of the cover shell facing the floating plate to fit the floating plate when the cover shell covers the floating plate.

12. An electrical connection device according to claim 11, characterized in that: The locking member includes a locking rod that can be rotated relative to the cover shell, one end of the locking rod is provided with a locking flange extending in a radial direction, and the floating plate is provided with a locking groove. The locking flange can extend into the locking groove and rotate at a preset angle relative to the locking groove to engage with the locking groove to form a retaining structure.

13. An electrical connection device according to claim 12, characterized in that: A pressing mechanism for pressing the cover shell onto the floating plate is also installed on one end of the locking rod away from the locking flange.

14. An electrical connection device according to claim 13, characterized in that: The pressing mechanism includes a pressing locking handle hinged on the locking rod, and the pressing locking handle is provided with an eccentric flange at the hinge; when the locking member is switched to the locking position, the pressing locking handle rotates relative to the cover shell around the axial direction of the locking rod, thereby driving the locking flange extending into the locking groove to rotate a preset angle, so that the locking flange is engaged with the locking groove correspondingly, and then the eccentric flange of the pressing locking handle is flipped, and the cover shell is relatively pushed along the axial direction of the locking rod so that the sealing gasket rests on the floating plate.

15. A battery-swapping ship, characterized in that: It comprises a hull, a battery box and an electrical connection device as described in any one of claims 1-14.

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