Electronic lock used for electric automobile and provided with conduction mechanism

Abstract

The utility model relates to the technical field of electronic locks, in particular to an electronic lock used for an electric automobile and provided with a transmission mechanism, which comprises a driving mechanism, a transmission mechanism and a crank gear mechanism, the crank gear mechanism rotates to drive a crankshaft part on the lock rod base to move in the special-shaped groove so as to drive the lock rod base to linearly move, and a lock rod used for locking and unlocking is arranged on the lock rod base; a driving mechanism is arranged in the shell assembly, a transmission mechanism and a crank gear mechanism are rotationally arranged in the shell assembly, the lock rod base is arranged in the shell assembly in a sliding mode, and during locking, the stress contact point of the inner wall of the special-shaped groove and the crankshaft part is lower than the rotation center of the crank gear mechanism, so that movement of the lock rod is limited. The special structural design of the crankshaft part and the special-shaped hole is adopted, locking and self-locking are ingeniously achieved, and locking stability is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic lock technical field especially, it is an electronic lock for electric automobile and possesses conduction mechanism. BACKGROUND

[0002] The working principle of the existing electronic lock for electric automobile is as follows: the rotation direction of the gear on the motor assembly is controlled through the positive and negative positions of the input current, thereby the working state of the electronic lock is controlled, and the on-off electricity of the signal end is controlled by using the mechanical touch principle of the micro switch, thereby the signal feedback function is realized. The micro switch needs to be welded on the PCB board in the prior art, and the PCB board is welded and connected with the terminal insert embedded in the shell of the electronic lock. The operation is complex, and there is a risk of welding abnormality and assembly size out of position. Meanwhile, the output force value of the existing electronic lock for electric automobile is small; the lock rod can be pushed back by external force after locking, and cannot be self-locked. UTILITY MODEL CONTENTS

[0003] The utility model aims at solving the above-mentioned defects, and provides an electronic lock for electric automobile and possessing conduction mechanism.

[0004] In order to overcome the defects in the background art, the utility model adopts the technical scheme that an electronic lock for electric automobile and possessing conduction mechanism, including drive mechanism, its with transmission mechanism, crank gear mechanism is in turn through the gear transmission, the crank gear mechanism on the crankshaft part that forms with the lock rod base that the special-shaped groove that sets up on it matches, the rotation movement of the crank gear mechanism drives the crankshaft part on the lock rod base moves in the special-shaped groove, to drive the lock rod base linear motion, and the lock rod for locking and unlocking is arranged on the lock rod base, when locking, the inner wall of the special-shaped groove 141 and the stress contact point of the crankshaft part 102 are lower than the rotation center of the crank gear mechanism 10, thereby the movement of the lock rod 13 is limited.

[0005] The shell assembly is internally configured with the drive mechanism and the rotationally arranged transmission mechanism and crank gear mechanism, and the lock rod base is slidably arranged in the shell assembly, and the lock rod extends to the outside through the inner wall of the shell assembly.

[0006] Further improvement, including the shell assembly includes lower shell and upper cover, the drive mechanism, transmission mechanism and crank gear mechanism are contained in the lower shell, the lower shell and the upper cover are connected to make the drive mechanism, lock rod base, transmission mechanism and crank gear mechanism remain in the lower shell.

[0007] Further improvement, including the lock rod base is provided with a spring leaf, the spring leaf with the signal terminal assembly set in the shell assembly contact so that the signal terminal assembly conduction used to feedback signal, in the self-locking state spring leaf makes signal terminal assembly conduction, in the unlocking state spring leaf makes signal terminal assembly open.

[0008] Further improvement, including the lock rod base is detachably connected with the lock rod.

[0009] Further improvement, including the shell assembly is embedded with a sealing ring A, and the sealing ring A is wrapped on the lock rod.

[0010] Further improvement, including the drive mechanism is in contact with the power terminal assembly set in the shell assembly for power supply to the drive mechanism.

[0011] Further improvement, including the shell assembly is provided with an emergency unlocking unit, the emergency unlocking unit is driven by the crank gear mechanism on the toggle piece to rotate the crank gear mechanism to unlock by manual control.

[0012] Further improvement, including the emergency unlocking unit includes an unlocking slider, an unlocking pull rod, a reset spring sleeved on the unlocking pull rod, and an unlocking rope, the unlocking slider is accommodated in the shell assembly and can move linearly in the shell assembly, one end of the unlocking pull rod is connected with the unlocking slider, the other end is connected with the unlocking rope to drive the unlocking slider to move by manually pulling the unlocking rope, and then the hook-shaped part on the unlocking slider is lapped with the toggle piece to drive the crank gear mechanism to rotate to unlock, one end of the reset spring abuts against the unlocking slider, the other end abuts against the inner wall of the shell assembly to make the unlocking slider return, and the unlocking rope extends to the outside through the unlocking sleeve connected on the shell assembly.

[0013] Further improvement, including the shell assembly and the unlocking sleeve connection is provided with a sealing ring B for sealing.

[0014] The utility model discloses an electronic lock mechanism driving force is bigger, and the mechanism is not easy to be jammed by external force in the later application, and the electronic lock mechanism is optimized straight gear transmission, and the transmission efficiency is high, and transmission performance is stable, and the mechanism failure probability is lower, simultaneously, based on the cam working principle of crankshaft gear, the control of the locking rod extension direction on the assembly structure is realized, and the special structure design of the crankshaft part and the special hole cooperation, the function of locking and self -locking is realized ingeniously, avoids the locking rod when locking and is pushed back into the shell assembly by external force. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further explained below in combination with the drawings and examples.

[0016] Figure 1 It is the explosion map of the utility model;

[0017] Figure 2 It is the internal structure of the utility model Figure 1 ;

[0018] Figure 3 It is the unlocking state diagram in the utility model;

[0019] Figure 4 It is the locking state diagram in the utility model;

[0020] Figure 5 It is the internal assembly drawing of the utility model;

[0021] Figure 6 It is the shaft side of crank gear mechanism in the utility model Figure 1 ;

[0022] Figure 7 It is the shaft side of crank gear mechanism in the utility model Figure 2 ;

[0023] Figure 8 It is the axonometric drawing of locking rod base in the utility model;

[0024] Figure 9 It is the locking state side section view of the utility model;

[0025] Figure 10 It is the unlocking state side section view of the utility model;

[0026] Figure 11 It is the internal structure of the utility model Figure 2;

[0027] Figure 12 is the internal structure of the utility model Figure 3 ;

[0028] Figure 13 is the side view of the utility model;

[0029] Figure 1 - upper cover, 2 - sealing ring A, 3 - reed, 4 - unlocking pull rod, 5 - sealing ring B, 6 - drive mechanism, 7 - lower shell, 8 - unlocking rope, 9 - transmission mechanism, 10 - crank gear mechanism, 11 - return spring, 12 - unlocking slider, 13 - lock rod, 14 - lock rod base, 15 - signal terminal assembly, 16 - power terminal assembly;

[0030] 801 - unlocking sleeve;

[0031] 101 - damping protrusion, 102 - crankshaft part, 103 - paddle;

[0032] 121 - hook-shaped part;

[0033] 141 - special-shaped groove. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme in the utility model embodiments will be described clearly and completely below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0035] According to Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10The utility model relates to an electronic lock with a transmission mechanism for electric vehicles, comprising a driving mechanism 6, which is sequentially connected with a transmission mechanism 9 and a crank gear mechanism 10 through gear transmission, a crankshaft part 102 formed on the crank gear mechanism 10 matches a special-shaped groove 141 opened on a lock rod base 14, the rotation of the crank gear mechanism 10 drives the crankshaft part 102 on the lock rod base 14 to move in the special-shaped groove 141, so as to drive the linear motion of the lock rod base 14, and a lock rod 13 for locking and unlocking is arranged on the lock rod base 14 and is in different positions with the sliding of the lock rod base 14, so that the electronic lock limits the charging gun through the lock rod 13 to achieve the final purpose of limiting the charging gun, and when locking, the force contact point between the inner wall of the special-shaped groove 141 and the crankshaft part 102 is lower than the rotation center of the crank gear mechanism 10, so as to limit the movement of the lock rod 13 and avoid the lock rod 13 from being pushed into the shell assembly under the action of external force, thereby ensuring the stability of locking.

[0036] The shell assembly is internally provided with the driving mechanism 6, the rotationally arranged transmission mechanism 9 and crank gear mechanism 10, and the lock rod base 14 is slidably arranged in the shell assembly, and the lock rod 13 extends to the outside through the inner wall of the shell assembly, in a further embodiment, the lock rod base 14 is provided with a notch and a boss at the upper end and the lower end, and cooperates with the track rib and the sliding groove in the shell assembly to realize the sliding purpose of the lock rod base 14 in the shell assembly.

[0037] In the embodiment, the shell assembly comprises a lower shell 7 and an upper cover 1, the driving mechanism 6, the transmission mechanism 9 and the crank gear mechanism 10 are accommodated in the lower shell 7, the lower shell 7 is connected with the upper cover 1 to keep the driving mechanism 6, the lock rod base 14, the transmission mechanism 9 and the crank gear mechanism 10 in the lower shell 7, and the transmission mechanism 9 and the crank gear mechanism 10 only keep the rotation freedom.

[0038] In a further embodiment, the lower shell 7 and the upper cover 1 are preferably fixed by laser welding, which has more stable parameters and better sealing effect.

[0039] In the embodiment, as Figure 2 and Figure 5As shown, the lock rod base 14 is provided with a spring 3, which is in contact with the signal terminal assembly 15 provided in the shell assembly, so as to make the signal terminal assembly 15 conductive for feedback signal. The spring 3 makes the signal terminal assembly 15 conductive in the self-locking state, and makes the signal terminal assembly 15 disconnected in the unlocking state. The signal terminal assembly 15 comprises plug-in terminals and terminal inserts integrally formed with the shell assembly, the plug-in terminals are connected with the terminal inserts, and the signal feedback in different working states of the electronic lock is realized by the mode that the spring 3 is in contact with different terminal inserts in different positions. The spring 3 is fixed on the unlocking slider 14 by the mode of reverse reverse buckling and profile limiting, and the spring 3 itself has an arc. When the electronic lock works, one end of the spring 3 is in a state of being pressed by a certain amount, so as to ensure the effective contact between the spring 3 and the terminal inserts.

[0040] In the embodiment, the lock rod base 14 is detachably connected with the lock rod 13, and the lock rod 13 can be replaced in time after being worn by adopting the design.

[0041] In the embodiment, as shown in Figure 5 , Figure 9 and Figure 10 , the seal ring A2 is embedded on the shell assembly, and the seal ring A2 is wrapped on the lock rod 13. In this way, the external dust and water vapor are prevented from entering the electronic lock, and the service life of the internal components of the electronic lock is prolonged.

[0042] In the embodiment, in order to supply power to the driving mechanism 6, as shown in Figure 5 , the driving mechanism 6 is in contact with the power terminal assembly 16 provided in the shell assembly for supplying power to the driving mechanism 6. The power terminal assembly 16 and the signal terminal assembly 15 are combined and connected through a connector. The power supply realizes signal feedback at the same time.

[0043] In the embodiment, in order to solve the problem that the system cannot be unlocked when a fault occurs, an emergency unlocking unit is provided in the shell assembly. The emergency unlocking unit drives the pawl 103 of the crank gear mechanism 10 to rotate the crank gear mechanism 10 to unlock by manual control.

[0044] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 11 , Figure 12 and Figure 13, the emergency unlocking unit comprises an unlocking slider 12, an unlocking pull rod 4, a reset spring 11 sleeved on the unlocking pull rod 4, and an unlocking rope 8, the unlocking slider 12 is accommodated in the shell assembly and can move linearly in the shell assembly, one end of the unlocking pull rod 4 is connected with the unlocking slider 12, the other end is connected with the unlocking rope 8 to drive the unlocking slider 12 to move by manually pulling the unlocking rope 8, then the hook-shaped part 121 on the unlocking slider 12 is overlapped with the push piece 103 to drive the crank gear mechanism 10 to rotate and realize unlocking, one end of the reset spring 11 abuts against the unlocking slider 12, the other end abuts against the inner wall of the shell assembly to make the unlocking slider 12 return, the unlocking rope 8 extends to the outside through the unlocking sleeve 801 connected on the shell assembly, when the system fails, the unlocking rope 8 is manually pulled, the unlocking slider 12 is moved in the shell assembly under the pulling force, at this time, the hook-shaped part 121 of the unlocking slider 12 is overlapped with the push piece 103 of the crank gear mechanism 10 to drive the crank gear mechanism 10 to rotate, the lock rod base 7 drives the lock rod 13 to retract inwardly to unlock, the unlocking rope 8 is released, and the unlocking slider 12 is pushed back to the initial position under the elastic force of the reset spring 11.

[0045] Further embodiments, as shown in Figure 13 The shell assembly and the unlocking sleeve 801 are connected and provided with a sealing ring B5 for sealing, which effectively prevents external dust and water vapor from entering the electronic lock.

[0046] In this embodiment, as shown in Figure 12 The crank gear mechanism 10 is provided with a damping protrusion 101, when unlocking, the damping protrusion 101 interferes with the triangular damping on the upper cover 1, which avoids the risk of reverse rotation of the lock rod 13 due to the motor back electromotive force inertia.

[0047] Working principle: the connector is externally connected to a power supply, the driving mechanism starts to work, the driving mechanism drives the transmission mechanism to rotate, and then drives the crank gear mechanism 10 to rotate, when the crankshaft part 102 of the crank gear mechanism 10 rotates, the lock rod base 14 (including the reed 3 and the lock rod 13 fixed on the lock rod base 14) is moved in the shell assembly to the state that the lock rod base 14 contacts the inner bottom surface of the lower shell 7, so as to achieve the purpose of extending the lock rod 13. At the same time, the crankshaft part 102 of the crank gear mechanism 10 cooperates with the structure that the special-shaped groove 141 is lower than the center of force of the lock rod base 14, so as to realize the function that the lock rod 13 cannot be pushed back under external force, that is, self-locking. In this state, the reed 3 makes the signal terminal assembly 15 conductive to realize signal feedback.

[0048] Unlocking: the connector is connected to the power supply, when the positive and negative poles are reversed, the driving mechanism 6 starts to rotate reversely, finally drives the crankshaft part 102 on the crank gear mechanism 10 to rotate reversely, moves the lock rod base 14 reversely in the shell assembly to the initial position, the lock rod 13 is retracted into the shell assembly, and unlocking is realized. At this time, the spring sheet 3 disconnects the signal terminal assembly 15, and no signal feedback is generated.

[0049] Emergency unlocking: when the locking state, the pull piece 103 is overlapped with or close to the unlocking slider 12, when the system fails, the unlocking rope 8 is pulled, the unlocking pull rod 4 is pulled against the elastic force of the reset spring 11, the unlocking slider 12 drives the crank gear mechanism 10 to rotate, so that the lock rod 13 is retracted inward, thereby realizing emergency unlocking, and when the unlocking is in place, under the reset force of the reset spring 11, the unlocking slider 12 returns to the initial position.

[0050] The above is only the preferred specific implementation mode of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An electronic lock for an electric vehicle having a conductive mechanism, characterized by, The driving mechanism (6) is sequentially connected with the transmission mechanism (9) and the crank gear mechanism (10) through gear transmission, a crankshaft part (102) formed on the crank gear mechanism (10) is matched with a special-shaped groove (141) formed on the lock rod base (14), the rotation of the crank gear mechanism (10) drives the crankshaft part (102) on the lock rod base (14) to move in the special-shaped groove (141), so as to drive the linear motion of the lock rod base (14), and a lock rod (13) for locking and unlocking is arranged on the lock rod base (14), when the lock rod (13) is locked, the contact point between the inner wall of the special-shaped groove (141) and the crankshaft part (102) is lower than the rotation center of the crank gear mechanism (10), so that the movement of the lock rod (13) is limited. The housing assembly is internally arranged with the driving mechanism (6) and the rotationally arranged transmission mechanism (9) and crank gear mechanism (10), and the lock rod base (14) is slidably arranged in the housing assembly, and the lock rod (13) extends to the outside through the inner wall of the housing assembly.

2. The electronic lock with conducting mechanism for electric vehicle as claimed in claim 1 wherein: The housing assembly comprises a lower shell (7) and an upper cover (1), the driving mechanism (6), the transmission mechanism (9) and the crank gear mechanism (10) are arranged in the lower shell (7), and the lower shell (7) is connected with the upper cover (1) to keep the driving mechanism (6), the lock rod base (14), the transmission mechanism (9) and the crank gear mechanism (10) in the lower shell (7).

3. The electronic lock for electric vehicles with a conducting mechanism according to claim 1, wherein: A spring piece (3) is arranged on the lock rod base (14), the spring piece (3) is in contact with a signal terminal assembly (15) arranged in the housing assembly, so that the signal terminal assembly (15) is conducted to feedback signals, the spring piece (3) makes the signal terminal assembly (15) conductive in the self-locking state, and the spring piece (3) makes the signal terminal assembly (15) disconnected in the unlocking state.

4. The electronic lock with conducting mechanism for electric vehicle as claimed in claim 3 wherein: The lock rod base (14) and the lock rod (13) are detachably connected.

5. The electronic lock for electric vehicles with a conducting mechanism according to claim 1, wherein: A sealing ring A (2) is embedded on the housing assembly, and the sealing ring A (2) is wrapped on the lock rod (13).

6. The electronic lock with conducting mechanism for electric vehicle of claim 1, wherein: The driving mechanism (6) is in contact with a power terminal assembly (16) arranged in the housing assembly, so as to supply power to the driving mechanism (6).

7. The electronic lock for electric vehicles with a conducting mechanism according to claim 1, wherein: An emergency unlocking unit is arranged in the housing assembly, the emergency unlocking unit drives a shifting piece (103) on the crank gear mechanism (10) to rotate the crank gear mechanism (10) to unlock through manual control.

8. The electronic lock for electric vehicles with a conducting mechanism according to claim 7, wherein: The emergency unlocking unit comprises an unlocking slider (12), an unlocking pull rod (4), a reset spring (11) sleeved on the unlocking pull rod (4), and an unlocking rope (8), the unlocking slider (12) is accommodated in the shell assembly and can move linearly in the shell assembly, one end of the unlocking pull rod (4) is connected with the unlocking slider (12), the other end is connected with the unlocking rope (8) to drive the unlocking slider (12) to move by manually pulling the unlocking rope (8), then the unlocking slider (12) is used to overlap the pawl (103) through the hook-shaped part (121) on the unlocking slider (12) to drive the crank gear mechanism (10) to rotate and realize unlocking, one end of the reset spring (11) abuts against the unlocking slider (12), the other end abuts against the inner wall of the shell assembly to make the unlocking slider (12) return, and the unlocking rope (8) extends to the outside through the unlocking sleeve (801) connected on the shell assembly.

9. An electronic lock for electric vehicles with a conductive mechanism according to claim 8, characterized in that: A sealing ring B (5) is arranged at the connection between the shell assembly and the unlocking sleeve (801) to seal.

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