Electric connection protective cover and electric connection device

Abstract

The utility model provides an electric connection protective cover and an electric connection device, and is applied to the technical field of ship battery replacement, the electric connection protective cover comprises a cover shell and a locking piece, the locking piece is movably connected to the cover shell and can move relative to the cover shell to be switched between an unlocking position and a locking position, and when the locking piece is switched to the locking position, the locking piece is locked to the unlocking position. The locking piece can be matched with the mounting plate to enable the housing to be in a locking state and cover the mounting plate of the electric connection device so as to realize sealing protection on the electric connector on the mounting plate; and when the locking piece is switched to the unlocking position, the locking piece can be unmatched with the mounting plate, so that the housing is in an unlocking state and is separated from the mounting plate, and the electric connector is butted with the battery pack to realize electric connection. According to the invention, the housing covers the mounting plate of the electric connection device through the locking piece to form sealing protection for the electric connector, and the safety accident of equipment short circuit caused by condensation of the electric connector due to high external air humidity can be effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of ship battery swapping, and particularly relates to an electrical connection protective cover and an electrical connection device. Background Art

[0002] In the field of ship battery swapping, container-type power battery boxes are usually used to swap the batteries of ships. The battery boxes are hoisted and electrically connected to the ships. Power supply is achieved by docking the electrical connection device at the end of the battery box with the equipment-side electrical connection device on the ship. As the name implies, side battery swapping means that its electrical connection device is arranged at the side end position. Since the working environment of the ship is relatively humid, water vapor or rainwater is likely to enter the interior of the electrical connection device, affecting the service life of the electrical connection device.

[0003] Chinese Patent Invention No. 202111668391.0 discloses an external waterproof device, an electrical connection device, and a ship battery swapping system. The external waterproof device includes a housing body and a waterproof component. One end of the housing body is open. The waterproof component includes a protective door arranged at the open end of the housing body and slidable relative to the open end to open or close the open end. The protective structure design of this solution is relatively complex and the manufacturing cost is relatively high. Although it has good protection against rain, snow, and water waves, it is not completely sealed. In an environment with high air humidity and easy condensation, its protection is defective, and safety accidents such as equipment short circuits are likely to occur due to condensation on the positive and negative poles of the high-voltage terminals. Summary of the Invention

[0004] In view of this, the present application provides an electrical connection protective cover and an electrical connection device, which can achieve the purpose of dust prevention, waterproofing, moisture protection, and condensation prevention by sealing and protecting the electrical connector through the housing.

[0005] The present invention provides the following technical solutions:

[0006] The present invention provides an electrical connection protective cover that can be arranged on the electrical connection device of a battery-swapping ship and is used to cover the mounting plate of the electrical connection device to seal and protect the electrical connector fixed on the mounting plate. The electrical connection protective cover includes a housing and a locking member;

[0007] The locking member is movably connected to the housing and can move relative to the housing to switch between an unlocked position and a locked position. When the locking member switches to the locked position, the locking member can cooperate with the mounting plate to make the housing in a locked state and cover the mounting plate to seal and protect the electrical connector; when the locking member switches to the unlocked position, the locking member can be disengaged from the mounting plate and make the housing in an unlocked state and separated from the mounting plate so that the electrical connector can be docked with an external battery pack to achieve electrical connection.

[0008] Among them, the electrical connection protective cover of this solution realizes the detachable connection between the cover shell and the mounting plate by configuring the cover shell and the locking member. The purpose is that when the locking member is in the locked position, the cover shell can be closed on the mounting plate to achieve the sealing protection of the electrical connector on the mounting plate, completely isolating the electrical connector from the external environment, and achieving the effects of waterproofing, dustproofing, moistureproofing, and anti-condensation; in addition, switching the locking member to the unlocked position can also separate the cover shell from the mounting plate, without affecting the docking of the electrical connector on the battery swapping ship with the battery pack for ship battery swapping, where the battery pack for ship battery swapping is mainly a containerized power battery box.

[0009] Preferably, the cover shell has a connecting protrusion extending towards the mounting plate, and the connecting protrusion is wound around the circumference of the cover shell to form a groove in the middle of the cover shell to accommodate the electrical connector when the cover shell is closed on the mounting plate; and / or, a sealing gasket is provided on one side of the cover shell facing the mounting plate to fit the mounting plate when the cover shell is closed on the mounting plate.

[0010] Among them, through the circumferentially wound connecting protrusion, a groove can be formed in the middle of the cover shell. When the cover shell is closed on the mounting plate, the groove can seal and accommodate the electrical connector, and the cover shell can protect the electrical connector without bumping into it.

[0011] In this solution, a sealing gasket is also synchronously provided on one side of the cover shell facing the mounting plate. The function of the sealing gasket is that when the locking member is switched to the locked position, the cover shell can be hermetically attached to the mounting plate through the sealing gasket, so that the electrical connector is completely sealed to avoid the influence of water vapor and dust, further improving the dustproof, waterproof, moistureproof, and anti-condensation effects of the cover shell on the electrical connector.

[0012] Preferably, the locking member includes a locking rod that can rotate relative to the cover shell. One end of the locking rod is provided with a locking flange extending in the radial direction. A locking groove is provided on the mounting plate, and the locking flange can extend into the locking groove and rotate a preset angle relative to the locking groove to engage with the locking groove to form a non-retracting structure.

[0013] Among them, by rotating the locking rod in the forward direction, the locking member is switched to the locked position, so that the locking flange correspondingly falls into the locking groove to form a non-retracting structure, and then the cover shell is closed on the mounting 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 mounting plate to expose the electrical connector on the mounting plate.

[0014] It should be noted that the preset angle for the locking rod to drive the locking flange to rotate can be set according to the actual use scenario. For example, the preset angle can preferably be 90 degrees.

[0015] Preferably, a pressing mechanism for pressing the housing onto the mounting plate is further installed at one end of the locking rod away from the locking flange.

[0016] Among them, by setting the pressing mechanism, the housing can be tightly pressed on the mounting plate, improving the tightness between the housing and the mounting plate, that is, ensuring that when the locking member is switched to the locking position, the groove on one side of the housing can tightly cover the electrical connector. At the same time, the setting of the pressing mechanism makes the locking rod stop rotating after driving the locking member to the locking position in the forward rotation, because of the action of the pressing mechanism on the housing, thereby ensuring that the locking member remains in the locking position and improving the stability and reliability of the protection of the electrical connector by the housing.

[0017] Preferably, the pressing mechanism includes a pressing lock handle hinged on the locking rod, and an eccentric flange is provided at the hinge of the pressing lock handle; when the locking member is switched to the locking position, the pressing lock handle rotates relative to the housing around the axial direction of the locking rod, driving the locking flange extending into the locking groove to rotate a preset angle, so that the locking flange is correspondingly engaged with the locking groove, and then the eccentric flange of the pressing lock handle is flipped to relatively push the housing along the axial direction of the locking rod, so that the sealing gasket abuts against the mounting plate.

[0018] Among them, the pressing mechanism of this solution adopts the eccentric movement of the eccentric flange. When the pressing lock handle is flipped towards the housing, it can force the housing to move and approach the mounting plate side along the axial direction of the locking rod, so that the sealing gasket abuts against the mounting plate, ensuring that the groove can tightly cover the electrical connector.

[0019] Preferably, a connecting seat cooperating with the locking rod is installed on the housing, a limiting boss is provided on the connecting seat, and when the pressing lock handle rotates to a position in contact with the limiting boss, the locking flange can be disengaged from the locking groove; and / or, a sealing ring is installed between the connecting seat and the locking rod.

[0020] Among them, in this solution, the limiting boss is set to limit the rotation angle of the locking rod driving the locking flange; especially when the locking member needs to be adjusted to the unlocking position, the setting of the limiting boss can clarify the amount of rotation required for the locking rod, avoiding insufficient or excessive rotation of the locking rod resulting in the locking flange being unable to disengage from the locking groove, thereby ensuring the success rate of separating the housing from the mounting plate and improving the efficiency.

[0021] In addition, the tightness between the locking rod and the connecting seat is improved by installing a sealing ring between the connecting seat and the locking rod, preventing external humid air from entering the groove through the gap between the locking rod and the connecting seat.

[0022] Preferably, the locking groove is a waist-shaped through hole arranged on the mounting plate, and the shape of the locking flange corresponds to the waist-shaped through hole; and / or, an elastic sealing block for sealing the locking groove is installed on one side of the locking rod close to the locking flange.

[0023] Among them, the locking groove in this scheme is set as a waist-shaped through hole, and the locking flange corresponds to the waist-shaped through hole, so that the locking flange is easy to enter and exit the waist-shaped through hole, and because they are all waist-shaped structures, after the locking flange enters the waist-shaped through hole, it can be rotated forward by a certain angle to form a stop structure between the locking flange and the waist-shaped through hole to prevent the locking flange from detaching from the locking groove and ensure the reliability of the cover covering the mounting plate. When the cover needs to be removed, the locking flange 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 detached, thereby realizing the separation between the cover and the mounting plate.

[0024] In addition, in this solution, the setting of the elastic sealing block can seal and block the waist-shaped through hole in the locked state, and the electrical connector on the mounting plate can be completely enclosed in the groove to prevent the electrical connector from being invaded by moisture, condensation, etc.

[0025] Preferably, guide posts located on both sides of the electrical connector are mounted on the mounting plate, and hanging ears are arranged on the outer edge of the housing, and guide holes which can cooperate with the guide posts are arranged on the hanging ears.

[0026] Among them, the mounting plate in this scheme cooperates with the guide hole on the outer edge of the cover shell through the guide column, which facilitates the positioning of the cover shell when it is installed on the mounting plate and can conveniently guide the locking flange at one end of the locking rod into the locking groove; in addition, through the guidance of the guide column, the cover shell will not hit the electrical connector.

[0027] Preferably, the eccentric flange includes a first cam segment, a second cam segment and a third cam segment which are sequentially transitioned, and the first cam segment and the third cam segment smoothly transition through the second cam segment; when the cover shell is in an unlocked state, the first cam segment abuts against the connecting seat; when the cover shell is in a locked state, the third cam segment locks against the connecting seat, and the contact self-locking point of the third cam segment and the connecting seat is not lower than the hinge point of the press-locking handle at the hinge.

[0028] Among them, in this solution, three eccentric cam segments are provided, so that when the first cam segment abuts against the connecting seat and when the third cam segment abuts against the connecting seat, the locking member is in the unlocked state and the locked state respectively. In the locked state, the contact self-locking point of the third cam segment is not lower than the hinge center point of the locking handle, so that the locking member can enter the self-locking state; at this time, the locking handle is in the vertically downward state, and the locking handle will not flip upward by itself without external force. Therefore, in the locked state, its housing can be hermetically abutted against the mounting plate.

[0029] Preferably, an anti-loss chain is installed on the housing. Of course, a pull rope or other structures can also be provided to equivalently replace the anti-loss chain.

[0030] The housing in this solution is detachably separable from the mounting plate. Therefore, by providing an anti-loss chain to connect the housing and the mounting plate, it does not affect the connection and detachment of the housing and the mounting plate, and avoids the phenomenon that the housing is taken away or lost.

[0031] The present invention also provides an electrical connection device, including a mounting plate, an electrical connector, and the above-mentioned electrical connection protective cover. The electrical connection protective cover covers the mounting plate of the electrical connection device to seal and protect the electrical connector mounted on the mounting plate.

[0032] The electrical connection device in this solution is arranged on a battery-changing ship and is used to dock with an external battery pack. When used for battery-changing docking, the electrical connectors on its mounting plate need to be exposed for use. Therefore, when not in docking use, it is necessary to effectively seal and protect by equipping the aforementioned electrical connection protective cover to prevent dust, water, moisture, and condensation of the electrical connectors.

[0033] Preferably, the electrical connection device further includes a return box installed below the electrical connection device for placing the electrical connection protective cover that has been detached from the mounting plate. A return detection sensor for detecting whether the housing exists is installed in the return box.

[0034] Among them, in this solution, by configuring a return box and a return detection sensor, the housing can only start the device to dock the electrical connection device with the battery pack after the return detection sensor detects a return signal when it is correctly placed in the return box, which can ensure that the electrical connectors of the electrical connection device are docked correctly and can achieve the purpose of preventing mistakes.

[0035] Preferably, along the direction in which the housing covers or detaches from the mounting plate, positioning grooves are respectively provided at both ends of the return box and recessed downward for placing the hanging ears of the housing. A return detection sensor is respectively provided on both sides of one of the positioning grooves, and a protective plate is provided at the upper end of the return box corresponding to the return detection sensor to protect the return detection sensor.

[0036] Among them, the positioning groove in this solution is used to guide the housing to quickly return to the corresponding position in the return box, improving the reliability and efficiency of housing placement; further, through the provided protective plate, during the process of returning and placing the housing, the housing will not collide with the return detection sensor, protecting the return sensor without affecting its function.

[0037] In summary, compared with the prior art, the beneficial effects that can be achieved by at least one of the above technical solutions adopted by the present invention at least include:

[0038] The housing of the electric connection protective cover of the present invention is detachably connected to the mounting plate. When the locking member is in the locked position, the housing can be locked and closed on the mounting plate, completely isolating the electrical connector on the mounting plate from the external environment, which can achieve the effects of waterproofing, dustproofing, moistureproofing, and anti-condensation, improving the protection performance of the protective cover, and further enhancing the safety and stability of the entire electric connection device; by switching the locking member to the unlocked position, the housing can be separated from the mounting plate without affecting the docking of the electrical connector on the battery-changing ship with the battery pack for ship battery-changing.

[0039] In the present invention, by rotating the locking rod, a non-return structure is formed between the locking flange and the locking groove of the mounting plate. Only by rotating the locking rod in the reverse direction to disengage the locking flange from the locking groove can the housing be removed from the mounting plate; the housing is pressed tightly on the mounting plate through the pressing mechanism, improving the tightness between the housing and the mounting plate. At the same time, the action of the pressing mechanism on the housing makes the locking rod no longer rotate, thereby ensuring that the locking member remains in the locked position, improving the stability and reliability of the housing's protection of the electrical connector; and the pressing mechanism can be realized by flipping the locking handle hinged on the locking rod and the eccentric flange provided on the locking handle; the eccentric flange has three eccentric cam segments, such that when the first cam segment abuts against the connecting seat and when the third cam segment abuts against the connecting seat, the locking member is in the unlocked state and the locked state respectively.

[0040] One end of the housing of the present invention is provided with a sealing gasket. By pressing the housing and the sealing gasket with the locking member, the housing can be hermetically attached to the mounting plate through the sealing gasket, completely sealing the electrical connector to avoid the influence of water vapor and dust, further improving the dustproof, waterproof, moistureproof, and anti-condensation effects of the housing on the electrical connector; when the locking handle of the locking member is in the locked position, its eccentric flange can self-lock and abut against the connecting seat of the housing, achieving self-locking through the reaction force after the housing and the sealing gasket are pressed tightly, ensuring that the locking member can always provide a thrust towards the mounting plate for the housing and the sealing gasket, ensuring the sealing of the electrical connector in the groove.

[0041] The present invention is provided with a limiting boss, which can clarify the amount of rotation required for the locking rod, avoiding the situation where the locking flange cannot be disengaged from the locking groove due to insufficient or excessive rotation of the locking rod, thus ensuring the success rate of separating the cover and the mounting plate and improving the efficiency. Through the structures of the gasket, sealing ring and elastic sealing block, the sealing performance of the electrical connector in the groove is further guaranteed to prevent the electrical connector from being invaded by moisture, condensation, etc.

[0042] The cover of the present invention is also provided with an anti-loss chain, which does not affect the connection and disconnection between the cover and the mounting plate and prevents the cover from being lost.

[0043] In addition, for the electrical connection device provided by the present invention, by configuring a return box and a return detection sensor, the device can only be started to dock the electrical connection device with the battery pack after the return detection sensor detects a return signal when the cover is correctly placed in the return box. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0045] Figure 1 is a perspective view of the electrical connection protective cover of the present application after being installed on the electrical connection device;

[0046] Figure 2 is a perspective view of the electrical connection protective cover of the present application during return;

[0047] Figure 3 is an exploded view between the cover and the mounting plate of the present application;

[0048] Figure 4 is a perspective view of the electrical connection protective cover of the present application;

[0049] Figure 5 is an exploded view of the electrical connection protective cover of the present application;

[0050] Figure 6 is a perspective view of the electrical connection protective cover of the present application after partial sectioning;

[0051] Figure 7 is a perspective view of the locking member of the present application;

[0052] Figure 8 is a structural schematic diagram of the electrical connection protective cover of the present application after being locked and installed on the mounting plate;

[0053] Figure 9It is a perspective view of the lock rod lock of the present application installed on the mounting plate;

[0054] Figure 10 It is a perspective view of the connecting seat of the present application after half-section;

[0055] Figure 11 It is a perspective view of the pressure lock handle of the present application;

[0056] Figure 12 It is a schematic structural view of the pressure lock handle of the present application;

[0057] Figure 13 It is a schematic structural view of the gasket of the present application;

[0058] Figure 14 It is a schematic view of the locking member of the present application switching from the unlocking position to the locking position;

[0059] Figure 15 It is a perspective view of the housing of the present application installed on the return box;

[0060] Figure 16 It is an exploded view of the housing and the return box of the present application;

[0061] Figure 17 It is a perspective view of the electrical connection device docking with the container-type battery box of the present application;

[0062] The corresponding component names for each reference numeral in the figure are: 1, electrical connection device; 2, housing; 3, gasket; 4, locking member; 5, groove; 6, return box; 7, battery box; 101, mounting plate; 102, electrical connector; 103, locking groove; 104, guide post; 201, connecting protrusion; 202, hanging ear; 203, guide hole; 204, anti-loss chain; 301, slot; 302, O-ring; 303, sealing ring; 401, lock rod; 402, locking flange; 403, pressure lock handle; 404, eccentric flange; 405, connecting seat; 406, limiting boss; 407, elastic sealing block; 408, first cam segment; 409, second cam segment; 410, third cam segment; 411, locking nut; 412, sealing ring; 601, return detection sensor; 602, protective plate; 603, positioning groove. Detailed Description of the Specific Embodiment

[0063] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0064] The following describes the implementation manners of the present application through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The present application can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope protected by the present application.

[0065] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. 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 illustrative only. Based on the present application, those skilled in the art should understand that one 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 aspects described herein can be used to implement the device and / or practice the method. Additionally, this device and / or this method can be implemented using other structures and / or functionality in addition to one or more of the aspects described herein.

[0066] It also needs to be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application schematically. The diagrams only show the components related to the present application rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in its actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0067] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the examples can be practiced without these specific details.

[0068] Such as Figure 1 and Figure 2As shown in the figure, the present application provides an electrical connection protective cover, which can be arranged on the electrical connection device 1 of the battery swapping ship and is used to cover the mounting plate 101 of the electrical connection device 1 to seal and protect the electrical connector 102 fixed on the mounting plate 101. The electrical connection protective cover includes a housing 2 and a locking member 4. The locking member 4 is movably connected to the housing 2 and can move relative to the housing 2 to switch between an unlocking position and a locking position. When the locking member 4 switches to the locking position, the locking member 4 can cooperate with the mounting plate 101 to make the housing 2 in a locked state and cover the mounting plate 101 to achieve sealing protection for the electrical connector 102. When the locking member 4 switches to the unlocking position, the locking member 4 can be disengaged from the mounting plate 101 and the housing 2 is in an unlocked state and detached from the mounting plate 101 so that the electrical connector 102 can be docked with an external battery pack to achieve electrical connection. The battery pack used in the ship is mainly a containerized battery box 7.

[0069] Figure 17 That is, it is a schematic diagram after the electrical connection device 1 is docked with the containerized battery box 7. As Figure 1 shown, when the locking member 4 is in the locking position, the housing 2 is locked and installed on the mounting seat 101 and is in a locked state. At this time, the electrical connector 102 is completely sealed and covered by the housing 2 to achieve sealing protection for the electrical connector 102. As Figure 2 shown, when the locking member 4 is in the unlocking position, the housing 2 is disengaged from the mounting plate 101 and is in an unlocked state. In the embodiments of the present specification, the housing 2 can be integrally detached from the mounting plate 101 and can be placed at the bottom position of the electrical connection device 1. At this time, the electrical connector 102 can be docked with the external battery box 7 for battery swapping. Therefore, the electrical connection protective cover of the embodiments of the present specification can realize the detachable connection between the housing 2 and the mounting plate 101 by configuring the housing 2 and the locking member 4. The purpose is that when the locking member 4 is in the locking position, the housing 2 can be covered on the mounting plate 101 to achieve sealing protection for the electrical connector 102 on the mounting plate 101, completely isolating the electrical connector 102 from the external environment, and achieving the effects of waterproof, dustproof, moisture-proof, and anti-condensation. In addition, switching the locking member 4 to the unlocking position can remove the housing 2 without affecting the docking of the electrical connector 102 on the battery swapping ship with the battery box 7 for battery swapping on the ship.

[0070] In some embodiments, as Figure 6 shown, the housing 2 has a connecting protrusion 201 extending in the direction of the mounting plate 101, and the connecting protrusion 201 is wound around the circumference of the housing 2 to form a groove 5 in the middle of the housing 2 to accommodate the electrical connector 102 when the housing 2 covers the mounting plate 101.

[0071] In some embodiments, as Figure 4 shown, a sealing gasket 3 is provided on one side of the housing 2 facing the mounting plate 101 to fit the mounting plate 101 when the housing 2 covers the mounting plate 101.

[0072] As Figure 6 and Figure 8 shown, the circumferentially wound connecting protrusion 201 can form a groove 5 in the middle of the housing 2 to accommodate the electrical connector 102. When the housing 2 is covered on the mounting plate 101, the groove 5 can hermetically accommodate the electrical connector 102. While the housing 2 protects the electrical connector 102, it will not bump into the electrical connector 102. As Figure 8 shown, the bottom of the groove 5 will not touch the electrical connector 102.

[0073] It should be noted that the specific contour of the housing 2 is not limited in the embodiments of this specification. It can be rectangular or cylindrical, etc., as long as it can achieve the covering and sealing protection of the electrical connector 102. In one example of this specification, the main part of the housing 2 is rectangular with rounded corners at the four corners, and the circumferentially wound connecting protrusion 201 on its side end is also rectangular.

[0074] In some preferred embodiments, a sealing gasket 3 is provided on the side of the housing 2 facing the mounting plate 101. The function of the sealing gasket 3 is that when the locking member 4 is switched to the locking position, the housing 2 can be hermetically attached to the mounting plate 101 through the sealing gasket 3, so that the electrical connector 102 is completely sealed to avoid the influence of moisture, dust, etc., and further improves the dust-proof, waterproof, moisture-proof and anti-condensation effects of the housing 2 on the electrical connector 102. The sealing gasket 3 is installed on the connecting protrusion 201, and the housing 2 in the locked state is abutted against the mounting plate 101 through the sealing gasket 3; As Figure 4 shown, in one example, the sealing gasket 3 is rectangular with rounded corners on the four sides, and its contour is adapted to the connecting protrusion 201 on the side end of the housing 2.

[0075] Specifically, as Figure 13 shown, the sealing gasket 3 is an end face sealing gasket, and the sealing gasket 3 is circumferentially provided with slots 301 that are inserted and matched with the connecting protrusion 201; on one side of the slot 301 of the sealing gasket 3, a hollow O-ring 302 is circumferentially provided, and an outwardly expanding sealing ring 303 is formed on the side of the O-ring 302 away from the slot 301; in the locking position, the O-ring 302 and the sealing ring 303 are hermetically abutted against the mounting plate 101, and the O-ring 302 and the sealing ring 303 can undergo elastic deformation under pressure, which can ensure that the housing 2 is hermetically abutted against the mounting plate 101 in the circumferential direction, so that the groove 5 forms a closed cavity to hermetically cover the electrical connector 102.

[0076] In some embodiments, as Figure 7 and Figure 8As shown, the locking member 4 includes a locking rod 401 that can rotate relative to the housing 2. One end of the locking rod 401 is provided with a locking flange 402 extending in the radial direction. A locking groove 103 is provided on the mounting plate 101. The locking flange 402 can extend into the locking groove 103 and rotate a preset angle relative to the locking groove 103 to engage with the locking groove 103 to form an anti-retreat structure. As Figure 8 shown, at this time, the locking flange 402 extends into the locking groove 103 and forms a locking engagement with it.

[0077] In the embodiment of this specification, by rotating the locking rod 401 in the forward direction (as Figure 3 shown, at this time, rotating the locking member 4 clockwise is the forward direction, and rotating counterclockwise is the reverse direction), the locking member 4 is switched to the locking position, so that the locking flange 402 correspondingly falls into the locking groove 103 to form an anti-retreat structure, and then the housing 2 is covered on the mounting plate 101; only by rotating the locking rod 401 in the reverse direction to disengage the locking flange 402 from the locking groove 103 can the housing 2 be removed from the mounting plate 101 to expose the electrical connector 102 on the mounting plate 101. Figure 2 This is a schematic diagram when the electrical connector 102 is exposed and ready to be docked with the battery box 7.

[0078] It should be noted that the preset angle for the locking rod 401 to drive the locking flange 402 to rotate can be set according to the actual use scenario. For example, the preset angle can preferably be 90 degrees. Figure 8 This is a schematic diagram of the locking flange 402 rotating 90 degrees preset angle to form an anti-retreat structure.

[0079] In some embodiments, a pressing mechanism for pressing the housing 2 onto the mounting plate 101 is further installed at one end of the locking rod 401 away from the locking flange 402. The pressing mechanism works in a state where the locking flange 402 of the locking member 4 and the locking groove 103 form an anti-retreat structure.

[0080] The purpose of the pressing mechanism in the embodiment of this specification is to press the housing 2 tightly onto the mounting plate 101 to improve the tightness between the housing 2 and the mounting plate 101, that is, to ensure that when the locking member 4 is switched to the locking position, the groove 5 on one side of the housing 2 can tightly cover the electrical connector 102. The action of the pressing mechanism on the housing 2 makes the locking rod 401 no longer rotate, thereby ensuring that the locking member 4 remains in the locking position and improving the stability and reliability of the protection of the electrical connector 102 by the housing 2.

[0081] The pressing mechanism cooperates with the sealing gasket 3, which can make the groove 5 at one end of the housing 2 closely adhere to the mounting plate 101, so that the groove 5 of the housing 2 forms a completely sealed cavity to realize the sealing protection of the electrical connector 102 and completely isolate the electrical connector 102 from the external environment.

[0082] In some embodiments, such asFigure 7 and Figure 11 As shown in Figure 11 , the pressing mechanism includes a pressing lock handle 403 hinged to the lock rod 401, and an eccentric flange 404 is provided at the hinge of the pressing lock handle 403; when the locking member 4 is switched to the locking position, the pressing lock handle 403 rotates relative to the housing 2 around the axial direction of the lock rod 401, driving the locking flange 402 extending into the locking groove 103 to rotate a preset angle, so that the locking flange 402 corresponds to engage with the locking groove 103, and then the eccentric flange 404 of the pressing lock handle 403 is flipped, and the housing 2 is relatively pushed along the axial direction of the lock rod 401 so that the sealing gasket 3 abuts against the mounting plate 101 (as Figure 8 shown, the pressing lock handle 403 is in a downward state at this time).

[0083] After the housing 2 of this embodiment of the specification is locked and closed on the mounting plate 101, through the eccentric movement of the eccentric flange 404 in the pressing mechanism, when the pressing lock handle 403 flips towards the housing 2, the housing 2 can be forced to move closer to the mounting plate 101 side along the axial direction of the lock rod 401, so that the sealing gasket 3 abuts against the mounting plate 101 (at this time, the sealing gasket 3 will undergo partial elastic deformation), ensuring that the groove 5 can be hermetically closed on the electrical connector 102.

[0084] In some embodiments, as Figure 3 、 Figure 7 and Figure 10 shown, a connecting seat 405 that can rotate in cooperation with the lock rod 401 is installed on the housing 2, a limiting boss 406 is provided on the connecting seat 405, and when the pressing lock handle 403 rotates to a position in contact with the limiting boss 406, the locking flange 402 can disengage from the locking groove 103.

[0085] In some embodiments, as Figure 5 and Figure 8 shown, a sealing ring 412 is installed between the connecting seat 405 and the lock rod 401.

[0086] This embodiment of the specification sets the limiting boss 406 as the positioning of the unlocking position to limit the rotation angle of the lock rod 401 driving the locking flange 402; especially when the locking member 4 needs to be adjusted to the unlocking position, the setting of the limiting boss 406 can clarify the amount of rotation required for the lock rod 401, avoiding insufficient or excessive rotation of the lock rod 401 resulting in the locking flange 402 being unable to disengage from the locking groove 103, thus ensuring the success rate of separating the housing 2 from the mounting plate 101 and improving the efficiency.

[0087] In one example, as Figure 3 and Figure 7 shown, the pressing lock handle 403 in the unlocking position is approximately perpendicular to the end face of the connecting seat 405.

[0088] In some preferred embodiments, such as Figure 5 and Figure 8 shown, a sealing ring 412 is installed between the connecting seat 405 and the locking rod 401. The sealing ring 412 is used to improve the tightness between the locking rod 401 and the connecting seat 405, and prevent external humid air from entering the groove 5 through the gap between the locking rod 401 and the connecting seat 405; as Figure 8 shown, two sealing rings 412 are provided and they are sleeved on the locking rod 401; as Figure 10 shown, an installation sink for clamping the sealing ring 412 is provided in the through hole of the connecting seat 405.

[0089] In some embodiments, such as Figure 3 shown, the locking groove 103 is a waist-shaped through hole provided on the mounting plate 101, and the shape of the locking flange 402 corresponds to that of the waist-shaped through hole.

[0090] In some embodiments, such as Figure 4 and Figure 5 shown, an elastic sealing block 407 for sealing the locking groove 103 is installed on one side of the locking rod 401 close to the locking flange 402.

[0091] In the embodiment of this specification, the locking groove 103 is set as a waist-shaped through hole, and the locking flange 402 corresponds to the waist-shaped through hole, so that the locking flange 402 is convenient to enter and exit the waist-shaped through hole. And because they are both waist-shaped structures, after the locking flange 402 enters the waist-shaped through hole, a non-return structure can be formed between the locking flange 402 and the waist-shaped through hole by rotating a certain angle in the positive direction, avoiding the locking flange 402 from disengaging from the locking groove and ensuring the reliability of the cover 2 covering the mounting plate 101. And when it is necessary to remove the cover 2, the locking flange 402 can be rotated back to the position where it can enter and exit the waist-shaped through hole and can be disengaged by rotating the same angle in the reverse direction as in the positive direction, thereby realizing the separation between the cover 2 and the mounting plate 101. Conversely, when installing the cover 2, its locking flange 402 can penetrate into the waist-shaped locking groove 103, and then the locking flange 402 is rotated by a preset angle to realize the locking cooperation with the locking groove 103 ( Figure 8 i.e., the schematic diagram of the locking cooperation between the locking flange 402 and the locking groove 103). As Figure 3 and Figure 4 shown, Figure 4 the overall size of the locking flange 402 in

[0092] It should be noted that the overall shape of the elastic seal block 407 is not limited in the embodiments of this specification. Its shape can be circular or rectangular, as long as it can seal the waist-shaped through hole where the locking groove 103 is located in the locked state. In one example, the cross-sectional shape of the elastic seal block 407 is circular. When the pressing mechanism works, it can completely seal and abut against the locking groove 103, so that the electrical connector 102 on the mounting plate 101 can be completely enclosed in the groove 5 to prevent the electrical connector from being invaded by moisture, condensation, etc. Similarly, it is to isolate the external air and play a role in dust prevention, waterproofing, moisture-proofing and anti-condensation.

[0093] In some embodiments, as Figure 3 and Figure 4 shown, guide posts 104 are installed on the mounting plate 101 on both sides of the electrical connector 102. Hanging ears 202 are provided on the outer edge of the housing 2, and guide holes 203 that can be in guiding cooperation with the guide posts 104 are provided on the hanging ears 202.

[0094] It should be noted that in actual use, the guide posts 104 can also be arranged in four symmetrically distributed in the up, down, left and right directions. The guide posts 104 in the embodiments of this specification are symmetrically arranged left and right. The mounting plate 101 cooperates with the guide holes 203 of the hanging ears 202 on the outer edge of the housing 2 through two guide posts 104, which is convenient for guiding the locking flange 402 at one end of the locking rod 401 to enter and be inserted into the locking groove 103. In addition, through the guidance of the guide posts 104, the housing 2 will not bump into the electrical connector 102.

[0095] In some embodiments, the eccentric flange 404 includes a first cam segment 408, a second cam segment 409, and a third cam segment 410 that are sequentially transitionally arranged. When the housing 2 is in the unlocked state, the first cam segment 408 abuts against the connecting seat 405. When in the locked state, the third cam segment 410 locks and abuts against the connecting seat 405, and the contact self-locking point of the third cam segment 410 and the connecting seat 405 is not lower than the hinge point of the locking handle 403 at the hinge.

[0096] Among them, in the embodiments of this specification, through three eccentric cam segments, as Figure 11 and Figure 12 shown, the first cam segment 408 and the third cam segment 410 are smoothly transitioned through the second cam segment 409. In Figure 12 the first cam segment 408 is in the uppermost position, and the distance between the third cam segment 410 and the hinge center point of the locking handle 403 is the farthest (i.e., the eccentricity is the largest). When the first cam segment 408 abuts against the connecting seat 405 and when the third cam segment 410 abuts against the connecting seat 405, they respectively correspond to the locking member 4 being in the unlocked state and the locked state. The locking handle 403 of the locking member 4 in the unlocked state is approximately perpendicular to the entire housing 2 (as Figure 3As shown in the figure); the contact self-locking point of the third cam segment 410 in the locked state is not lower than the hinge center point of the lock pressing handle 403, so that the locking member 4 can enter the self-locking state; at this time, the lock pressing handle 403 is in a vertically downward state, and the locking member 4 will not flip upward by itself without external force. Therefore, in the locked state, its housing 2 can be hermetically abutted against the mounting plate 101. As Figure 8 shown, at this time, the lock pressing handle 403 flips downward and tilts inward (towards the side close to the housing 2). At this time, the contact self-locking point of the third cam segment 410 and the connecting seat 405 is slightly higher than the hinge point of the lock pressing handle 403 at the hinge, and self-locking is achieved through the reaction force after the housing 2 and the gasket 3 are pressed tightly.

[0097] In some embodiments, a anti-loss chain 204 is installed on the housing 2. Of course, structures such as a pull rope can also be provided to equivalently replace the anti-loss chain 204.

[0098] The housing 2 of the embodiment of this specification is detachably separable from the mounting plate 101. Therefore, an anti-loss chain 204 can be provided to connect the housing 2 and the mounting plate 101, which not only does not affect the connection and detachment of the housing 2 and the mounting plate 101, but also can avoid the phenomenon that the housing 2 is taken away or lost.

[0099] The embodiment of this specification also provides an electrical connection device, including the electrical connection protection housing of any one of the embodiments in this specification. The electrical connection device 1 includes a mounting plate 101 and an electrical connector 102 on the mounting plate 101. The electrical connection protection housing covers the mounting plate 101 of the electrical connection device 1 to seal and protect the electrical connector 102 mounted on the mounting plate 101.

[0100] The electrical connection device is arranged on a battery swapping ship and is used to dock with an external battery pack. When used for battery swapping docking, the electrical connector 102 on its mounting plate 101 needs to be exposed and then docked with the battery box 7. Therefore, when not docking, it is necessary to effectively seal and protect through the aforementioned electrical connection protection housing to prevent dust, water, moisture and condensation of the electrical connector 102.

[0101] In some embodiments, the electrical connection device 1 further includes a return box 6 installed below the electrical connection device 1, which is used to place the electrical connection protection housing that has been separated from the mounting plate 101. A return detection sensor 601 for detecting whether there is a housing 2 is installed in the return box 6.

[0102] In the embodiments of this specification, by configuring the home position box 6 and the home position detection sensor 601, only when the housing 2 is correctly placed on the home position box 6 and the home position detection sensor 601 detects the home position signal can the device be started to dock the electrical connection device 1 with the battery box 7, which can ensure that the electrical connector 102 of the electrical connection device 1 is docked correctly and serves the purpose of preventing mistakes and correcting errors. If the home position signal of the housing 2 is not detected, the system reports a home position fault of the protective cover. After manually checking the position of the housing 2 and handling the fault, first reset the device and then start the device with one key to start the connection.

[0103] In some embodiments, along the direction in which the housing 2 covers or detaches from the mounting plate 101, positioning grooves 603 that are recessed downward are respectively provided at both ends of the home position box 6 for placing the lugs 202 of the housing 2. A home position detection sensor 601 is respectively provided on both sides of one of the positioning grooves 603, and a protective plate 602 is provided at the upper end of the home position box 6 corresponding to the home position detection sensor 601 to protect the home position detection sensor 601.

[0104] The positioning groove 603 in the embodiments of this specification is used to guide the housing 2 to quickly return to the corresponding position in the home position box 6, improving the reliability and efficiency of housing placement; through the provided protective plate 602, during the process of placing the housing 2 in the home position, the housing 2 will not bump into the home position detection sensor 601, protecting the home position sensor 601 without affecting its function.

[0105] In this specification, the same or similar parts among the various embodiments can be referred to each other. 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 refer to the partial description of the foregoing embodiments.

[0106] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in this application should be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. An electrical connection protective cover, which can be arranged on an electrical connection device of a battery-swapping ship, and is used to cover a mounting plate of the electrical connection device to seal and protect an electrical connector fixed on the mounting plate, characterized in that: The electrical connection protection cover comprises: Housing; A locking member is movably connected to the cover shell and can move relative to the cover shell to switch between an unlocked position and a locked position. When the locking member is switched to the locked position, the locking member can cooperate with the mounting plate to make the cover shell in a locked state and cover the mounting plate to achieve sealing protection for the electrical connector; when the locking member is switched to the unlocked position, the locking member can be disengaged from the mounting plate and make the cover shell in an unlocked state and detach from the mounting plate so that the electrical connector can dock with the battery pack to achieve electrical connection.

2. The electrical connection protection cover according to claim 1, characterized in that: The cover shell has a connecting protrusion extending toward the mounting plate, and the connecting protrusion is arranged along the circumference of the cover shell to form a groove in the middle of the cover shell to accommodate the electrical connector when the cover shell covers the mounting plate; and / or, a sealing gasket is provided on the side of the cover shell facing the mounting plate to fit the mounting plate when the cover shell covers the mounting plate.

3. The electrical connection protection cover according to claim 1, 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 mounting 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.

4. The electrical connection protection cover according to claim 3, characterized in that: A pressing mechanism for pressing the cover shell onto the mounting plate is also installed at one end of the locking rod away from the locking flange; the pressing mechanism includes a pressing and locking handle hinged on the locking rod, and the pressing and locking handle is provided with an eccentric flange at the hinge; when the locking member is switched to the locking position, the pressing and locking handle rotates relative to the cover shell around the axial direction of the locking rod to drive 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 and 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 against the mounting plate.

5. The electrical connection protection cover according to claim 4, characterized in that: A connecting seat cooperating with the locking rod is installed on the cover shell, and a limiting boss is provided on the connecting seat. When the compression lock handle is rotated to a position in contact with the limiting boss, the locking flange can be disengaged from the locking groove; and / or a sealing ring is installed between the connecting seat and the locking rod.

6. The electrical connection protection cover according to claim 5, characterized in that: The locking groove is a waist-shaped through hole arranged on the mounting plate, and the shape of the locking flange corresponds to the waist-shaped through hole; and / or, an elastic sealing block for sealing the locking groove is installed on the side of the locking rod close to the locking flange.

7. The electrical connection protection cover according to claim 1, characterized in that: The mounting plate is provided with guide posts located on both sides of the electrical connector, the outer edge of the cover shell is provided with hanging ears, and the hanging ears are provided with guide holes that can cooperate with the guide posts; and / or, an anti-lost chain is installed on the cover shell.

8. The electrical connection protection cover according to claim 4, characterized in that: The eccentric flange includes a first cam segment, a second cam segment and a third cam segment which are sequentially transitioned, and the first cam segment and the third cam segment have a smooth transition through the second cam segment; when the cover shell is in an unlocked state, the first cam segment abuts against the connecting seat; when the cover shell is in a locked state, the third cam segment locks against the connecting seat, and the contact self-locking point between the third cam segment and the connecting seat is not lower than the hinge point of the press-lock handle at the hinge.

9. An electrical connection device, comprising a mounting plate, an electrical connector and the electrical connection protective cover according to any one of claims 1 to 8, wherein the electrical connection protective cover covers the mounting plate of the electrical connection device to seal and protect the electrical connector mounted on the mounting plate.

10. The electrical connection device according to claim 9, characterized in that: The electrical connection device also includes a homing box installed below the electrical connection device, for placing the electrical connection protection cover that has been detached from the mounting plate, and a homing detection sensor for detecting whether the cover shell exists is installed in the homing box; along the direction in which the cover shell covers or detaches from the mounting plate, downwardly recessed positioning grooves are respectively provided at both ends of the homing box for placing the hanging ears of the cover shell, and a homing detection sensor is respectively provided on both sides of one of the positioning grooves, and a protective plate is provided on the upper end of the homing box corresponding to the homing detection sensor to protect the homing detection sensor.

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