Electronic lock capable of feeding back signals during unlocking and locking

Abstract

The utility model discloses an electronic lock capable of feeding back signals during unlocking and locking, and relates to the field of electronic locks. The electronic lock capable of feeding back signals during unlocking and locking comprises a shell, a motor assembly, a gear transmission assembly, a rack and a lock pin, the motor assembly, the gear transmission assembly and the rack are arranged in the shell, the lock pin penetrates through the shell in a sliding mode, the output end of the motor assembly is connected with the rack through the gear transmission assembly, and one end of the lock pin is connected with the rack; the motor assembly drives the rack to move through the gear transmission assembly, so that the lock pin extends out of or retracts into the shell. The lock further comprises a signal feedback assembly, the signal feedback assembly comprises a contact connected with the rack, a first terminal, a second terminal and a third terminal, and the first terminal, the second terminal and the third terminal are arranged in the shell, and one end of each terminal extends out of the shell. And the contact is connected with the first terminal and the third terminal to form a loop or is connected with the second terminal and the third terminal to form a loop. According to the electronic lock capable of feeding back the signals during unlocking and locking, it can be guaranteed that the feedback signals are stably and reliably output during unlocking and locking for a long time.

Description

Technical Field

[0001] The present application relates to the field of electronic locks, and in particular to an electronic lock that provides feedback signals when unlocking and locking. Background Art

[0002] During the charging process of new energy vehicles, an electronic lock is needed to control the extension and retraction of the lock pin to lock the charging device to ensure the safety and efficiency of charging.

[0003] However, the existing charging locking devices are unable to provide stable signal feedback for the locking state and unlocking state. For example, the patent with authorization announcement number CN218021230U discloses a new energy vehicle charging locking device with a noise reduction function, which uses a micro switch or a switch branch with resistance to provide signal feedback for the locking signal and the unlocking signal, and cannot provide stable signal feedback for the locking and unlocking positions. It is difficult to provide stable feedback for the locking and unlocking signals after long-term use or after being subjected to impact and vibration. Utility Model Content

[0004] The purpose of the present application is to provide an electronic lock that provides feedback signals when unlocking and locking, which can ensure that the feedback signals are output stably and reliably for a long time when unlocking and locking.

[0005] This application is implemented as follows:

[0006] The present application provides an electronic lock that feedbacks signals when unlocking and locking, which includes a shell, a motor assembly, a gear transmission assembly and a rack arranged in the shell, and a lock pin that slides through the shell, wherein the output end of the motor assembly is connected to the rack through the gear transmission assembly, and one end of the lock pin is connected to the rack; the motor assembly drives the rack to move through the gear transmission assembly to extend the lock pin out of or retract the shell; and further includes a signal feedback assembly, which includes a contact connected to the rack and a first terminal, a second terminal and a third terminal arranged in the shell and one end of which extends out of the shell, and when the rack moves to extend the lock pin out of or retract the shell, the contact is connected to the first terminal and the third terminal to form a loop or is connected to the second terminal and the third terminal to form a loop.

[0007] In some optional embodiments, the shell is connected to a five-core interface that cooperates with a five-core plug, the first terminal, the second terminal and the third terminal are respectively connected to the five-core interface, and the motor assembly is connected to the five-core interface through the fourth terminal and the fifth terminal.

[0008] In some optional implementation schemes, the third terminal is connected to the ground port of the five-core interface.

[0009] In some optional embodiments, a fixing plate is connected inside the shell, and the first terminal, the second terminal, the third terminal, the fourth terminal and the fifth terminal are fixedly connected to the fixing plate.

[0010] In some optional embodiments, two fixing holes are provided on the fixing plate, and the ends of the fourth terminal and the fifth terminal away from the five-core interface are respectively connected to the motor assembly through electrical connectors, and the two electrical connectors pass through the two fixing holes respectively.

[0011] In some optional embodiments, the fixing plate protrudes to form two support platforms, and the two support platforms are respectively provided with motor clamping grooves for clamping two ends of the motor assembly.

[0012] In some optional embodiments, one end of the third terminal close to the five-core interface is bent away from the first terminal and the second terminal to form a bent portion, and the bent portion is connected to the five-core interface through a connecting portion attached to the side wall of the shell.

[0013] In some optional embodiments, the side wall of the shell is connected to a partition plate, the side wall of the shell and the partition plate enclose an isolation cavity, and the connecting portion is located in the isolation cavity.

[0014] In some optional embodiments, a PCB board is provided in the shell, and the top surface of the PCB board is provided with a first electrical connecting plate, a second electrical connecting plate and a third electrical connecting plate electrically connected to the first terminal, the second terminal and the third terminal respectively. When the rack moves to extend or retract the locking pin into the shell, the contact remains pressed against the third electrical connecting plate while pressing against the first electrical connecting plate or the second electrical connecting plate.

[0015] In some optional embodiments, the gear transmission assembly includes a worm connected to the output end of the motor assembly, a primary double gear meshing with the worm, and a secondary double gear meshing with the primary double gear, and the secondary double gear is meshed with the rack.

[0016] The beneficial effects of the present application are as follows: the electronic lock with feedback signals when unlocking and locking provided by the present application comprises a housing, a motor assembly, a gear transmission assembly and a rack arranged in the housing, and a lock pin sliding through the housing, the output end of the motor assembly is connected to the rack through the gear transmission assembly, and one end of the lock pin is connected to the rack; the motor assembly drives the rack to move through the gear transmission assembly, so that the lock pin extends out of or retracts into the housing; and further comprises a signal feedback assembly, the signal feedback assembly comprises a contact connected to the rack and a first terminal, a second terminal and a third terminal arranged in the housing and extending out of the housing at one end, when the rack moves to extend or retract the lock pin into the housing, the contact is connected to the first terminal and the third terminal to form a loop or connected to the second terminal and the third terminal to form a loop. The electronic lock with feedback signals when unlocking and locking provided by the present application can ensure that the feedback signal is outputted stably and reliably for a long time when unlocking and locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of an electronic lock that provides feedback signals when unlocking and locking according to an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the structure of an electronic lock that provides feedback signals when unlocking and locking according to an embodiment of the present application with part of the housing omitted;

[0020] Figure 3 A schematic diagram of the structure of an electronic lock that provides feedback signals when unlocking and locking according to an embodiment of the present application when part of the housing and the motor assembly are omitted;

[0021] Figure 4 A schematic diagram of the structure of an electronic lock that provides feedback signals when unlocking and locking according to an embodiment of the present application when all housings and motor components are omitted;

[0022] Figure 5 A schematic diagram of the structure of a PCB board in an electronic lock that provides feedback signals during unlocking and locking according to an embodiment of the present application;

[0023] Figure 6 A schematic diagram of the structure of contacts in an electronic lock that provides feedback signals during unlocking and locking provided in an embodiment of the present application.

[0024] In the figure: 100, housing; 110, motor assembly; 120, gear transmission assembly; 121, worm; 122, first-stage double gear; 123, second-stage double gear; 130, rack; 131, buffer table; 140, lock pin; 150, five-core interface; 160, fixing plate; 170, fixing hole; 180, electrical connector; 190, support table; 191, motor slot; 200, contact; 201, first contact piece; 20 2. Second contact piece; 210. First terminal; 220. Second terminal; 230. Third terminal; 240. Fourth terminal; 250. Fifth terminal; 260. Bend portion; 270. Connecting portion; 280. Partition; 290. Isolation cavity; 300. Emergency unlocking assembly; 310. Sleeve; 320. Pull rope; 400. PCB board; 410. First electrical connection piece; 420. Second electrical connection piece; 430. Third electrical connection piece. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The electronic lock features and performance of the feedback signal during unlocking and locking of the present application are further described in detail below in conjunction with the embodiments.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the embodiment of the present application provides an electronic lock that feedbacks signals when unlocking and locking, which includes a housing 100, a motor assembly 110, a gear transmission assembly 120, a rack 130 and a signal feedback assembly arranged in the housing 100, and a lock pin 140 that slides through the housing 100, and the end of the housing 100 away from the lock pin 140 is connected to a five-core interface 150 that cooperates with a five-core plug and an emergency unlocking assembly 300;

[0034] Among them, the motor assembly 110 includes a motor, and the output end of the motor assembly 110 is connected to the rack 130 through the gear transmission assembly 120. The gear transmission assembly 120 includes a worm 121 connected to the output end of the motor in the motor assembly 110, a first-level double gear 122 meshing with the worm 121, and a second-level double gear 123 meshing with the first-level double gear 122. The second-level double gear 123 is meshed with the rack 130. One end of the lock pin 140 is connected to a buffer table 131 arranged in the shell 100, and one end of the buffer table 131 is connected to one end of the rack 130 to form an L-shaped whole; the motor assembly 110 drives the rack 130 to move through the gear transmission assembly 120, so that the lock pin 140 extends or retracts the shell 100; the emergency unlocking assembly 300 includes a sleeve 310 and a pull rope 320 connected to the shell 100, and the pull rope 320 passes through the sleeve 310 to connect to the rack 130. The first-stage double gear 122 and the second-stage double gear 123 are both formed by fixing two transmission gears on a rotating shaft.

[0035] The signal feedback component includes a contact 200 connected to the buffer stage 131 and a first terminal 210, a second terminal 220, a third terminal 230, a fourth terminal 240 and a fifth terminal 250 arranged in the housing 100. The third terminal 230, the fifth terminal 250, the first terminal 210, the second terminal 220, and the fourth terminal 240 are arranged at intervals along the width direction of the housing 100, and the third terminal 230 is connected to the ground port of the five-core interface 150; one end of the first terminal 210, the second terminal 220, the third terminal 230, the fourth terminal 240 and the fifth terminal 250 extends out of the housing 100 and is respectively connected to the five-core interface 150; a fixing plate 160 and a PCB board 400 are connected in the housing 100, and the contact 200 is connected to the five-core interface 150. The bottom of the head 200 slides against the PCB board 400, the first terminal 210, the second terminal 220, and the third terminal 230 are fixedly connected to the fixed plate 160 and the PCB board 400, the fourth terminal 240 and the fifth terminal 250 are fixedly connected to the fixed plate 160, and the top surface of the PCB board 400 is respectively provided with a first electrical connecting piece 410, a second electrical connecting piece 420 and a third electrical connecting piece 430 electrically connected to the first terminal 210, the second terminal 220 and the third terminal 230, the first electrical connecting piece 410 and the second electrical connecting piece 420 are arranged at intervals along the extension and retraction direction of the locking pin 140, and the third electrical connecting piece 430 is arranged on the side of the first electrical connecting piece 410 and the second electrical connecting piece 420 and extends along the extension and retraction direction of the locking pin 140. A first contact piece 201 and a second contact piece 202 are provided at the bottom of the contact 200. When the locking pin 140 extends or retracts the housing 100, the buffer platform 131 drives the contact 200 to press against the top surface of the PCB board 400 to move, so that the first contact piece 201 presses against the electrically connected third electrical connection piece 430, and the second contact piece 202 presses against the electrically connected first electrical connection piece 410 or the second electrical connection piece 420.

[0036] Two fixing holes 170 are provided on the fixing plate 160, and the ends of the fourth terminal 240 and the fifth terminal 250 away from the five-core interface 150 are respectively connected to the motor of the motor assembly 110 through the electrical connector 180 for power supply, and the two electrical connectors 180 pass through the two fixing holes 170 respectively; the two ends of the top of the fixing plate 160 are raised to form two support platforms 190, and the two support platforms 190 are respectively provided with motor card slots 191 for clamping the two ends of the motor assembly 110, and the end of the third terminal 230 close to the five-core interface 150 is bent in a direction away from the first terminal 210 and the second terminal 220 to form a bending portion 260, and the bending portion 260 is connected to the five-core interface 150 through a connecting portion 270 attached to the side wall of the shell 100, and the side wall of the shell 100 is connected to a partition 280, and the side wall of the shell 100 and the partition 280 are enclosed to form an isolation cavity 290, and the connecting portion 270 is located in the isolation cavity 290.

[0037] When the rack 130 moves and drives the buffer platform 131 to extend or retract the locking pin 140 from the housing 100, the buffer platform 131 drives the contact 200 to press against the top surface of the PCB board 400 to move and connect with the first terminal 210 and the third terminal 230 to form a loop or connect with the second terminal 220 and the third terminal 230 to form a loop.

[0038] The working principle of the electronic lock with feedback signals during unlocking and locking provided in the embodiment of the present application is: an external five-core plug is used to insert and connect the five-core interface 150 connected to the shell 100, and an external power supply is used to connect the motor of the motor assembly 110 through the fourth terminal 240 and the fifth terminal 250 to form a loop power supply. At this time, the motor assembly 110 can be controlled to drive the output shaft to rotate forward and reverse through the connected worm 121 to drive the meshing first-stage double gear 122 to rotate forward and reverse, thereby driving the meshing second-stage double gear 123 of the first-stage double gear 122 to rotate forward and reverse, and then driving the meshing rack 130 of the second-stage double gear 123 to move axially along the lock pin 140, thereby pushing the buffer platform 131 connected to the rack 130 to drive the lock pin 140 to move axially and extend or retract the shell 100 to realize the locking and unlocking function of the electronic lock of the charging locking device.

[0039] When the buffer table 131 drives the locking pin 140 to move axially, it drives the connected contact 200 to press against the top surface of the PCB board 400 and move, so that the buffer table 131 drives the locking pin 140 to move axially out of the housing 100 and outputs a locking signal when locked, the buffer table 131 drives the contact 200 to move, so that the first contact piece 201 connected to the bottom of the contact 200 moves along the third electrical connecting piece 430 and keeps pressing against and electrically connecting to the third electrical connecting piece 430, and the second contact piece 202 connected to the bottom of the contact 200 moves to press against and electrically connect to the first electrical connecting piece 410, so that the first terminal 210 and the third terminal 230 electrically connected to the first electrical connecting piece 410 and the third electrical connecting piece 430 are electrically connected to form a loop through the first contact piece 201, the second contact piece 202 and the contact 200, and then through the first terminal 210 and the third terminal 230 and their connections The five-core interface 150 connected thereto outputs a locking signal through a five-core plug; when the buffer platform 131 drives the locking pin 140 to move axially and retract into the shell 100 to unlock and output an unlocking signal, the buffer platform 131 drives the contact 200 to move, so that the first contact piece 201 connected to the bottom of the contact 200 moves along the third electrical connecting piece 430 and maintains a pressure-electrical connection to the third electrical connecting piece 430, and the second contact piece 202 connected to the bottom of the contact 200 moves to a pressure-electrical connection to the second electrical connecting piece 420 and electrically connects the second terminal 220 and the third terminal 230 electrically connected to the second electrical connecting piece 420 and the third electrical connecting piece 430 to form a loop through the first contact piece 201, the second contact piece 202 and the contact 200, and then the unlocking signal is output through the five-core plug through the second terminal 220 and the third terminal 230 and the five-core interface 150 connected thereto.

[0040] Two fixing holes 170 are provided on the fixing plate 160, and the ends of the fourth terminal 240 and the fifth terminal 250 away from the five-core interface 150 are respectively connected to the motor of the motor assembly 110 through the electrical connector 180 for power supply. The two electrical connectors 180 pass through the two fixing holes 170 respectively, and the fixing holes 170 on the fixing plate 160 can be used to limit the electrical connectors 180 connected to the fourth terminal 240 and the fifth terminal 250, thereby effectively fixing the positions of the fourth terminal 240 and the fifth terminal 250 to improve the stability of power supply; the two ends of the top of the fixing plate 160 are raised to form two support platforms 190, and the two support platforms 190 are respectively provided with motor slots 191 for clamping the two ends of the motor assembly 110, which can improve the stability of the motor assembly 110 installed in the shell 100. One end of the third terminal 230 close to the five-core interface 150 is bent toward the direction away from the first terminal 210 and the second terminal 220 to form a bending portion 260. The bending portion 260 is connected to the five-core interface 150 through a connecting portion 270 attached to the side wall of the shell 100. The side wall of the shell 100 is connected to a partition 280. The side wall of the shell 100 and the partition 280 form an isolation cavity 290. The connecting portion 270 is located in the isolation cavity 290, which can stably fix the connecting portion 270 of the third terminal 230 in the isolation cavity 290 of the inner wall of the shell 100, thereby improving the connection stability of the third terminal 230 and ensuring a stable output signal. At the same time, it can also ensure that the third terminal 230 is stably connected to the grounding port of the five-core interface 150 to improve the grounding stability.

[0041] When in the locked state, the operator can manually pull the pull rope 320 of the emergency unlocking assembly 300 to move the pull rope 320 along the sleeve 310 and drive the rack 130 to move axially along the locking pin 140, thereby driving the locking pin 140 to move axially and retract into the shell 100 through the buffer platform 131 connected to the rack 130 to realize manual unlocking. During this process, the sleeve 310 of the emergency unlocking assembly 300 is fixed at the rear end of the shell 100 and does not move, thereby realizing the manual emergency unlocking function of the charging locking device.

[0042] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. An electronic lock that provides feedback signals when unlocking and locking, comprising a housing, a motor assembly, a gear transmission assembly and a rack arranged in the housing, and a lock pin that slides through the housing, wherein the output end of the motor assembly is connected to the rack through the gear transmission assembly, and one end of the lock pin is connected to the rack; the motor assembly drives the rack to move through the gear transmission assembly, so that the lock pin extends out of or retracts into the housing; characterized in that: It also includes a signal feedback component, which includes a contact connected to the rack and a first terminal, a second terminal and a third terminal arranged in the shell and with one end extending out of the shell, when the rack moves to extend or retract the locking pin into the shell, the contact is connected to the first terminal and the third terminal to form a loop or connected to the second terminal and the third terminal to form a loop.

2. The electronic lock with feedback signal when unlocking and locking according to claim 1, characterized in that: The shell is connected to a five-core interface that cooperates with a five-core plug, the first terminal, the second terminal and the third terminal are respectively connected to the five-core interface, and the motor assembly is connected to the five-core interface through the fourth terminal and the fifth terminal.

3. The electronic lock with feedback signal when unlocking and locking according to claim 2, characterized in that: The third terminal is connected to the ground port of the five-core interface.

4. The electronic lock with feedback signal when unlocking and locking according to claim 2, characterized in that: A fixing plate is connected inside the housing, and the first terminal, the second terminal, the third terminal, the fourth terminal and the fifth terminal are fixedly connected to the fixing plate.

5. The electronic lock with feedback signal when unlocking and locking according to claim 4, characterized in that: The fixing plate is provided with two fixing holes, and the ends of the fourth terminal and the fifth terminal away from the five-core interface are respectively connected to the motor assembly through electrical connectors, and the two electrical connectors pass through the two fixing holes respectively.

6. The electronic lock with feedback signal when unlocking and locking according to claim 4, characterized in that: The fixing plate protrudes to form two support platforms, and the two support platforms are respectively provided with motor clamping grooves for clamping the two ends of the motor assembly.

7. The electronic lock with feedback signal when unlocking and locking according to claim 2, characterized in that: One end of the third terminal close to the five-core interface is bent toward a direction away from the first terminal and the second terminal to form a bent portion, and the bent portion is connected to the five-core interface through a connecting portion attached to the side wall of the shell.

8. The electronic lock with feedback signal when unlocking and locking according to claim 7, characterized in that: The shell side wall is connected with a partition plate, the shell side wall and the partition plate enclose an isolation cavity, and the connecting portion is located in the isolation cavity.

9. The electronic lock with feedback signal when unlocking and locking according to claim 1, characterized in that: A PCB board is provided in the shell, and a first electrical connection piece, a second electrical connection piece and a third electrical connection piece electrically connected to the first terminal, the second terminal and the third terminal are provided on the top surface of the PCB board respectively; when the rack moves to extend or retract the locking pin into the shell, the contact is kept pressed against the third electrical connection piece while pressing against the first electrical connection piece or the second electrical connection piece.

10. The electronic lock with feedback signal when unlocking and locking according to claim 1, characterized in that: The gear transmission assembly includes a worm connected to the output end of the motor assembly, a primary double gear meshing with the worm, and a secondary double gear meshing with the primary double gear, and the secondary double gear meshes with the rack.

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