AC-DC linkage integrated electronic lock of new energy automobile

Abstract

The new energy automobile AC-DC linkage integrated electronic lock comprises a lock shell and a connecting shell, a clutch driven by a motor, a lock seat and a first lock rod are arranged in the lock shell, a driving gear is arranged on a rotating shaft of the clutch, a protrusion with a spring bolt is arranged on the end face of one side of the driving gear, a lock groove intermittently clamped with the spring bolt is formed in the lock seat, and the first lock rod is arranged in the lock groove. The first lock rod is arranged on the lock seat; a linkage shaft penetrating through the lock shell is arranged on the end face of the other side of the driving gear, the output end of the linkage shaft is connected with a pushing shaft through a crank, and the linkage shaft is wrapped with a connecting shell which is connected with the lock shell. According to the AC-DC linkage integrated electronic lock for the new energy automobile, under the condition that the structure of an existing AC electronic lock is not changed, the connecting shell and the linkage shaft are additionally arranged, and when the motor drives the first lock rod to be locked, the second lock rod can be synchronously driven to be locked; the fast locking of the fast charging interface (DC interface) and the slow charging interface (AC interface) of the new energy automobile is realized synchronously.

Description

Technical Field

[0001] The present invention relates to the field of new energy vehicle charging technology, and more specifically, to an AC-DC linkage integrated electronic lock for new energy vehicles. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures; new energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc.

[0003] At present, the charging socket of electric vehicles integrates AC modules, DC modules, electronic lock modules and LED modules. Among them, the electronic lock module is an important device for locking the charging gun and the charging base. The electronic lock of the AC charging system on the current market is arranged in the charging base, and the electronic lock of the DC charging system is arranged in the charging gun. Users have increasingly higher requirements for charging time, more and more demand for fast charging, and more and more attention to the safety of the charging process. However, most of the existing charging guns are electronic locks with a single locking rod for the AC charging system, and it is impossible to achieve a car charging electronic lock with the function of locking both DC and AC charging guns.

[0004] To address the aforementioned issues, Chinese patent CN116031709B provides a dual-locking-rod electronic lock. While this structure can achieve integrated DC and AC locking, it suffers from the following issues: 1. It lacks a protective structure. When unlocked by external force, excessive force can damage the internal structure of the electronic lock, impairing its functionality. 2. The unlocking structure of the electronic lock for an electrical socket is located inside the outer casing of the electronic lock. When the unlocking operation is performed by external force, if the external force is large or the number of times the external force is used is high, the connection portion of the unlocking structure may be damaged, making it impossible to unlock by external force, resulting in malfunction of the electronic lock. Furthermore, the unlocking rope cannot be replaced without damaging the overall structure of the electronic lock.

[0005] Therefore, it is necessary to propose an AC-DC linkage integrated electronic lock for new energy vehicles to solve the above technical problems. Summary of the Invention

[0006] The present invention provides an AC-DC linkage integrated electronic lock for new energy vehicles, so as to solve the technical problems that the existing AC-DC electronic locks for new energy vehicles lack a protective structure and are easily damaged by excessive external forces, and the existing electronic locks are inconvenient to maintain.

[0007] According to one aspect of the present invention, an AC-DC linked integrated electronic lock for new energy vehicles is provided, comprising a lock shell and a connecting shell, wherein a motor-driven clutch, a lock seat and a first locking rod are installed in the lock shell, a driving gear is installed on the rotating shaft of the clutch, and a protrusion with a lock tongue is provided on one end face of the driving gear, a lock groove intermittently engaged with the lock tongue is provided on the lock seat, and the first locking rod is installed on the lock seat; a linkage shaft passing through the lock shell is installed on the other end face of the driving gear, and the output end of the linkage shaft is connected to a driving shaft through a crank, the connecting shell is covered by the outside of the linkage shaft and is connected to the lock shell, a guide rail is provided on the inner side surface of the connecting shell, a slider is slidably installed on the guide rail, the second locking rod is installed on the slider and extends to the outside of the connecting shell, and a slot is provided on the slider, and the output end of the driving shaft is engaged in the slot.

[0008] Preferably, based on the above solution, a supporting edge is provided in the connecting shell, the end of the supporting edge is provided with a surface adapted to the outer edge of the linkage shaft, and there are two supporting edges which are spaced apart and provided in the inner edge of the connecting shell.

[0009] Preferably, based on the above solution, a PCB board is installed in the lock housing, a metal shrapnel is provided on the lock seat, and an end of the metal shrapnel abuts against the PCB board.

[0010] Preferably, based on the above scheme, an inserting interface is provided on the end face of the lock shell on the opposite side of the first locking rod, the PCB board is electrically connected to the inserting interface by providing a conductive plate, and the conductive plate is attached to the inner wall of the lock shell, a clamping groove is provided at the end of the conductive plate, and a metal protrusion adapted to the clamping groove is provided on the PCB board.

[0011] Preferably, based on the above solution, the first locking rod and the second locking rod are arranged perpendicular to each other, and the first locking rod is arranged parallel to the output shaft of the motor.

[0012] Preferably, based on the above solution, the end surface of the driving gear extends outward to form a mounting edge, the linkage shaft is inserted into the mounting edge, and the linkage shaft is connected to the lock housing via a bearing.

[0013] Preferably, based on the above solution, the sliders are arranged in two intervals and connected through the second locking rod, and the output end of the driving shaft is engaged in the slot of the slider at the bottom.

[0014] Preferably, based on the above scheme, the clutch includes a helical gear and a clutch wheel mounted on the rotating shaft, the helical gear is engaged with the output end of the motor, a flange is provided on the end face of the helical gear close to the clutch wheel, and a mounting groove is provided on the side of the clutch wheel close to the clutch gear, the flange is inserted into the mounting groove and is pressed by a wave spring.

[0015] Preferably, based on the above scheme, the lock housing is further provided with a manual unlocking wheel and an unlocking handle, the manual unlocking wheel is engaged with the clutch gear, and the manual unlocking wheel and the unlocking gear are respectively arranged at both ends of the clutch gear, and the end face of the manual unlocking wheel is provided with a locking edge; the unlocking handle is provided with a flange, and the flange is provided with a protrusion, and the protrusion is engaged with the locking edge, and a pull rope is also provided and fixed on the unlocking handle.

[0016] The present invention provides an AC-DC linkage integrated electronic lock for new energy vehicles. By adding a connecting shell and a linkage shaft while maintaining the structure of the existing AC electronic lock, the motor can simultaneously drive the second locking rod to lock when driving the first locking rod to lock, thereby achieving rapid locking of the new energy vehicle's fast charging interface (DC interface) and slow charging interface (i.e., AC interface) simultaneously.

[0017] At the same time, the present invention also combines a PCB board and a metal spring, which can quickly obtain the relative position of the first locking rod and the second locking rod, and accurately output the electronic lock rod position signal to achieve precise control of the positions of the first locking rod and the second locking rod.

[0018] The connecting part of the unlocking structure of the electronic lock of the present invention is located outside the electronic lock housing. When the connecting part of the unlocking structure is damaged, the corresponding part can be replaced very conveniently, which greatly improves the maintainability of the electronic lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. In the drawings: Figure 1 This is a schematic diagram of the structure of the AC-DC linkage integrated electronic lock for new energy vehicles of the present invention; Figure 2 This is a schematic structural diagram of the AC-DC linkage integrated electronic lock for new energy vehicles from another perspective of the present invention; Figure 3 This is a structural diagram of the AC-DC linkage integrated electronic lock for new energy vehicles of the present invention after removing the connection shell; Figure 4 A partial exploded view from another perspective of the AC-DC linkage integrated electronic lock for new energy vehicles of the present invention; Figure 5 It is a three-dimensional exploded view of the lock seat, clutch and protrusion of the present invention; Figure 6 is a cross-sectional view of the clutch of the present invention; Description of Figure Numbers: 1. Lock housing; 11. Clutch; 111. Rotating shaft; 112. Clutch gear; 113. Bevel gear; 114. Clutch wheel; 115. Flange; 116. Mounting slot; 117. Wave spring; 12. Motor; 13. Lock base; 131. Lock slot; 14. First locking lever; 15. Plug port; 16. Conductive plate; 18. Rib; 2. Connecting shell; 21. Guide rail; 22. Slider; 23. Slot; 24. Support edge; 3. Drive gear; 31. Lock tongue; 32. Protrusion; 33. Linkage shaft; 35. Crank; 36. Push shaft; 37. Mounting flange; 4. Second locking lever; 5. PCB board; 6. Manual unlocking wheel; 61. Unlocking handle; 63. Pull rope; DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0021] It will be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0022] To simplify the drawings, only the parts relevant to the present invention are schematically shown in each figure. They do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. As used herein, "one" not only means "only one" but also "more than one."

[0023] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0024] In the embodiments shown in the accompanying drawings, directional indications (such as up, down, left, right, front, and rear) used to explain the structure and movement of various components of the present invention are not absolute but relative. These descriptions are applicable when the components are in the positions shown in the accompanying drawings. If the descriptions of the positions of these components are changed, the directional indications will also change accordingly.

[0025] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0027] See also Figure 1 , and combined with Figure 2 and Figure 3 As shown, the present invention provides an AC-DC linkage integrated electronic lock for new energy vehicles, comprising a lock housing 1 and a connecting housing 2 , wherein the lock housing 1 is equipped with a motor 12 , a clutch 11 , a lock seat 13 and a first lock rod 14 .

[0028] The output shaft of the motor 12 is provided with a driving wheel which engages with the clutch 11 to control the movement of the clutch 11, thereby driving the lock seat 13 and the first locking rod 14 on the lock seat 13 to extend or retract, thereby achieving the purpose of locking or unlocking. Specifically, the clutch 11 of the present invention is rotatably mounted in the lock housing 1 via a rotating shaft 111, wherein the clutch 11 includes a bevel gear 113 and a clutch wheel 114, wherein the bevel gear 113 is mounted on the rotating shaft 111 and meshes with the output drive wheel of the motor 12, and a flange 115 is provided on the end surface of the bevel gear 113 close to the clutch wheel 114, and a mounting groove 116 is provided on the clutch wheel 114 close to the clutch gear 112, the flange 115 is inserted into the mounting groove 116, and a wave spring 117 is pressed between the end surface of the flange 115 and the mounting groove 116; the end of the clutch wheel 114 meshes with the clutch gear 112, and the clutch gear 112 is engaged with the drive gear 3 mounted on one side. For the specific structure, please refer to Figure 6 .

[0029] Please continue reading Figure 5 and Figure 4As shown, a protrusion 32 with a lock tongue 31 is provided on one end face of the driving gear 3, a lock slot lock intermittently engaged with the lock tongue 31 is provided on the lock seat 13, and a first lock rod 14 is installed on the lock seat 13; a linkage shaft 33 that passes through the lock shell 1 is provided on the other end face of the driving gear 3, and the output end of the linkage shaft 33 is connected to the push shaft 36 through the crank 35, the connecting shell 2 is covered on the outside of the linkage shaft 33 and is connected to the lock shell 1, and a guide rail 21 is provided on the inner side surface of the connecting shell 2, and a slider 22 is slidably installed on the guide rail 21, the second lock rod 4 is installed on the slider 22 and extends to the outside of the connecting shell 2, and a slot 23 is provided on the slider 22, and the output end of the push shaft 36 is engaged in the slot 23.

[0030] During operation, the motor 12 works and drives the bevel gear 113 to rotate through the driving wheel to drive the rotating shaft 111 to rotate. At this time, since the first locking rod 14 and the second locking rod 4 at the output end are in a free state, the clutch gear 112 will not be locked due to the action of the driving gear 3. In this way, when the bevel gear 113 rotates, the clutch wheel 114 compresses the wave spring 117, forcing the end of the clutch wheel 114 to be inserted into the clutch gear 112, so as to drive the clutch gear 112 to rotate, thereby driving the driving gear 3 to move.

[0031] The driving gear 3 rotates, and utilizes the interaction force between the lock tongue 31 on its end face and the lock slot on the lock seat 13 to drive the lock seat 13 to move, thereby extending the first lock rod 14. At the same time, a linkage shaft 33 that passes through the lock housing 1 is provided on the end face of the driving gear 3 opposite to the protrusion 32. Due to the rotation of the driving gear 3, the linkage shaft 33 is driven to rotate, thereby driving the crank 35 on the linkage shaft 33 to rotate and drive the push shaft 36 to move in the slot on the slider 22, so as to drive the slider 22 to move on the guide rail 21 in the connecting shell 2, so as to drive the second lock rod 4 to extend outward.

[0032] Through the above-mentioned function, when the motor 12 is working, the first locking rod 14 and the second locking rod 4 can be synchronously driven to lock or unlock, thereby simultaneously locking the fast charging interface (DC interface) and the slow charging interface (i.e., AC interface) of the new energy vehicle.

[0033] During use, when the first locking rod 14 or the second locking rod 4 is locked, at this time, since the first locking rod 14 and the second locking rod 4 at the output end are in a clamped and locked state, the clutch gear 112 is locked due to the action of the driving gear 3. At this time, if the motor 12 continues to output the force, the clutch wheel 114 thereon and the clutch gear 112 will mesh with each other, and the thrust will increase, acting on the wave spring 117, thereby separating the two to achieve the purpose of interrupting the transmission of force between the transmission structures, thereby protecting the transmission structure and improving the service life of the electronic lock.

[0034] The present invention provides a rib 18 on the outer circular surface of the lock shell 1, the connecting shell 2 and the rib 18 are connected by a locking bolt, and a support edge support is provided in the connecting shell 2, the end of the support edge support is provided with an outer edge surface adapted to the linkage shaft 33, and there are two support edge supports and they are arranged at intervals in the inner edge surface of the connecting shell 2, one of the support edge supports is limited at the upper part of the connecting shaft, and the other support shaft is limited at the lower part of the connecting shaft to control the bending deformation of the connecting shaft.

[0035] The present invention places the connection part of the electronic lock unlocking structure outside the electronic lock housing 1. When the connection part of the unlocking structure is damaged, the corresponding parts can be replaced very conveniently, which greatly improves the maintainability of the electronic lock.

[0036] Furthermore, in the present invention, a PCB board 5 is installed in the lock housing 1 , and a metal spring is provided on the lock seat 13 , with the end of the metal spring contacting the PCB board 5 .

[0037] Among them, the end face of the lock shell 1 opposite to the first locking rod 14 is provided with an insertion interface 15, and the PCB board 5 is electrically connected to the insertion interface 15 by providing a conductive plate 16, and the conductive plate 16 is attached to the inner wall of the lock shell 1, and the end of the conductive plate 16 is provided with a clamping groove for clamping, and the PCB board 5 is provided with a metal protrusion that is adapted to the clamping groove.

[0038] When the position of the first locking rod 14 changes, the metal dome slides on the PCB board 5, and the resistance value output by the PCB board 5 changes accordingly, and the output signal changes, thereby accurately outputting the relative position signal of the first locking rod 14 and the second locking rod 4 of the electronic lock. The detection principle of this invention is disclosed in the applicant's patent CN118431833B and will not be repeated here.

[0039] Preferably, the first locking rod 14 and the second locking rod 4 of the present invention are arranged perpendicular to each other, and the first locking rod 14 and the output shaft of the motor 12 are arranged parallel to each other.

[0040] It is worth noting that the end surface of the driving gear 3 of the present invention extends outward to form a mounting edge 37 , the linkage shaft 33 is inserted into the mounting edge 37 , and the linkage shaft 33 is connected to the lock housing 1 via a bearing.

[0041] In order to ensure smooth control of the second locking rod 4 , the sliders 22 of the present invention are arranged in two intervals and connected through the second locking rod 4 , and the output end of the push shaft 36 is engaged in the card slot of the bottom slider 22 .

[0042] Furthermore, the present invention also provides a manual unlocking method, specifically, a manual unlocking wheel 6 and an unlocking handle 61 are installed on the lock shell 1, the manual unlocking wheel 6 is engaged with the clutch gear 112, and the manual unlocking wheel 6 and the unlocking gear are respectively arranged at the two ends of the clutch gear 112, and the end face of the manual unlocking wheel 6 is provided with a locking edge; a flange 62 is provided on the unlocking handle 61, and a protrusion 32 is provided on the flange 62, which is engaged with the locking edge, and a pull rope 63 is also provided and fixed on the unlocking handle 61.

[0043] The present invention provides an AC-DC linkage integrated electronic lock for new energy vehicles. By adding a connecting shell 2 and a linkage shaft 33 while maintaining the structure of the existing AC electronic lock, the motor 12 can simultaneously drive the second locking rod 4 to lock when driving the first locking rod 14 to lock, thereby achieving rapid locking of the new energy vehicle's fast charging interface (DC interface) and slow charging interface (i.e., AC interface) simultaneously.

[0044] At the same time, the present invention also combines the PCB board 5 and the metal spring, which can quickly obtain the relative position of the first locking rod 14 and the second locking rod 4, and accurately output the electronic lock rod position signal to achieve precise control of the position of the first locking rod 14 and the second locking rod 4.

[0045] The connection part of the unlocking structure of the electronic lock of the present invention is located outside the electronic lock housing 1. When the connection part of the unlocking structure is damaged, the corresponding parts can be replaced very conveniently, which greatly improves the maintainability of the electronic lock.

[0046] Finally, the method of this application is only a preferred embodiment and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An AC-DC linkage integrated electronic lock for new energy vehicles, characterized in that: The lock housing includes a clutch, a lock seat and a first locking rod driven by a motor, wherein the lock housing is equipped with a clutch, a lock seat and a first locking rod, a clutch gear meshing with the driving gear is installed on the rotating shaft of the clutch, a protrusion with a lock tongue is provided on one end face of the driving gear, a lock groove intermittently engaged with the lock tongue is provided on the lock seat, and the first locking rod is installed on the lock seat; a linkage shaft passing through the lock housing is installed on the other end face of the driving gear, and the output end of the linkage shaft is connected to the driving shaft through a crank, the connecting shell is covered by the linkage shaft and is connected to the lock housing, a guide rail is provided on the inner side surface of the connecting shell, a slider is slidably installed on the guide rail, the second locking rod is installed on the slider and extends to the outside of the connecting shell, and a slot is provided on the slider, and the output end of the driving shaft is engaged in the slot.

2. The AC-DC linkage integrated electronic lock for new energy vehicles as claimed in claim 1, characterized in that: A supporting edge is provided in the connecting shell, an end portion of the supporting edge is adapted to the outer edge surface of the linkage shaft, and there are two supporting edges which are spaced apart and provided in the inner edge surface of the connecting shell.

3. The AC-DC linkage integrated electronic lock for new energy vehicles as claimed in claim 1, characterized in that: A PCB board is installed in the lock housing, and a metal spring is provided on the lock seat. The end of the metal spring contacts the PCB board.

4. The AC-DC linkage integrated electronic lock for new energy vehicles as claimed in claim 3, characterized in that: The end surface of the lock shell opposite to the first lock rod is provided with an insertion interface, the PCB board is electrically connected to the insertion interface by providing a conductive plate, and the conductive plate is attached to the inner wall of the lock shell, the end of the conductive plate is provided with a clamping groove, and the PCB board is provided with a metal protrusion adapted to the clamping groove.

5. The AC-DC linkage integrated electronic lock for new energy vehicles as claimed in claim 1, characterized in that: The first locking rod and the second locking rod are arranged perpendicular to each other, and the first locking rod is arranged parallel to the output shaft of the motor.

6. The AC-DC linkage integrated electronic lock for new energy vehicles as claimed in claim 1, characterized in that: The end surface of the driving gear extends outward to form a mounting edge, the linkage shaft is inserted into the mounting edge, and the linkage shaft is connected to the lock housing through a bearing.

7. The AC-DC linkage integrated electronic lock for new energy vehicles as claimed in claim 1, characterized in that: The sliders are arranged in two intervals and are connected through the second locking rod, and the output end of the driving shaft is engaged in the slot of the slider at the bottom.

8. The AC-DC linkage integrated electronic lock for new energy vehicles as claimed in claim 1, characterized in that: The clutch includes a helical gear and a clutch wheel mounted on the rotating shaft. The helical gear is engaged with the output end of the motor. A flange is provided on the end face of the helical gear close to the clutch wheel, and a mounting groove is provided on the side of the clutch wheel close to the clutch gear. The flange is inserted into the mounting groove and pressed by a wave spring.

9. The AC-DC linkage integrated electronic lock for new energy vehicles as claimed in claim 8, characterized in that: The lock housing is also provided with a manual unlocking wheel and an unlocking handle, the manual unlocking wheel is engaged with the clutch gear, and the manual unlocking wheel and the unlocking gear are respectively arranged at both ends of the clutch gear, and the end face of the manual unlocking wheel is provided with a locking edge; the unlocking handle is provided with a flange, and the flange is provided with a protrusion, and the protrusion is engaged with the locking edge, and a pull rope is also provided and fixed on the unlocking handle.

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