CN216893877U

CN216893877U - Electronic lock with full-stroke detection

Info

Publication number: CN216893877U
Application number: CN202123204282.1U
Authority: CN
Inventors: 曹海忠; 陈广新
Original assignee: Dongguan Southeast New Energy Technology Co ltd
Current assignee: Dongguan Southeast New Energy Technology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-07-05
Anticipated expiration: 2031-12-17

Abstract

The utility model relates to an electronic lock for full-stroke detection, which comprises: the stroke detection switch comprises a base, a driver arranged on the base, a locking rod arranged on the base in a sliding mode, a transmission piece connected between the driver and the locking rod, and a stroke detection switch arranged adjacent to the locking rod. The travel detection switch is a Hall switch, the locking rod is provided with a magnet which synchronously slides along with the locking rod, and the magnet is used for changing a magnetic field where the travel detection switch is located; or the stroke detection switch is a slide rheostat, the locking rod is provided with a slide block which synchronously slides along with the locking rod, and the slide block is used for changing the resistance value of the stroke detection switch. Above-mentioned electronic lock that full stroke detected through setting up the stroke detection switch who is used for detecting the position of lock pole, through the mode that detects magnetic field variation or resistance change, realizes the full stroke detection of lock pole, not only breaks through the restriction of traditional multiple check point design, simple structure moreover.

Description

Electronic lock with full-stroke detection

Technical Field

The utility model relates to the technical field of charging equipment, in particular to an electronic lock for full-stroke detection.

Background

With the popularization and application of domestic new energy automobiles, the electric vehicle gradually replaces the traditional internal combustion engine automobile. The battery of electric motor car need be connected with charging pile via the rifle that charges, and simultaneously, some electric motor cars also can supply power for other consumer through car end charging seat. Based on the security requirement, an electronic lock (also called a locking device, a safety lock, etc.) is usually disposed on the charging gun or the vehicle-end charging seat. The electronic lock has the function of preventing the charging gun or the vehicle-end charging seat from loosening in a charging state. Generally, an electronic lock is provided with a motor (commonly called as a motor) and a lock block, and the motor drives the lock block to move, so that the lock block is switched between a locking state and an unlocking state, and the purpose of locking control is achieved. In order to detect the state of the lock, the electronic lock is usually further provided with a feedback device for detecting the position of the lock, for example, when the lock is located at the locking point, the feedback device feeds back a locking electric signal to a control board of the charging gun, and when the lock is located at the unlocking point, the feedback device feeds back an unlocking electric signal to the control board of the charging gun.

The defects of the traditional electronic lock are as follows: the feedback device detects the position of the lock block, usually by multi-point detection, each detection point corresponds to a state (position point) of the lock block, and a micro switch is arranged corresponding to one detection point as a trigger device. Along with the increase of the detection points, the number of the micro switches is increased, the structure of the electronic lock is more complicated, the number of the detection points is limited, and the whole-process detection of the positions of the lock blocks is difficult to realize.

SUMMERY OF THE UTILITY MODEL

Based on the above, the electronic lock for detecting the full stroke provided by the utility model realizes the full stroke detection of the locking rod by arranging the stroke detection switch for detecting the position of the locking rod and detecting the change of a magnetic field or the change of a resistance value, and not only breaks through the limitation of the traditional multi-detection-point design, but also has a simple structure.

A full stroke detected electronic lock comprising:

a base;

a driver mounted on the base;

a locking rod arranged on the base in a sliding manner;

a transmission member connected between the driver and the lock lever; and

a stroke detection switch arranged adjacent to the locking rod; the travel detection switch is a Hall switch, the locking rod is provided with a magnet which synchronously slides along with the locking rod, and the magnet is used for changing a magnetic field where the travel detection switch is located; or the stroke detection switch is a slide rheostat, the locking rod is provided with a slide block which synchronously slides along with the locking rod, and the slide block is used for changing the resistance value of the stroke detection switch.

Above-mentioned electronic lock that full stroke detected, during operation, the driver passes through the driving medium and drives the locking pole slip. The stroke detection switch is used for detecting the position of the full stroke of the locking rod and converting the position into an electric signal for feedback. The stroke detection switch can be a Hall switch or a slide rheostat. When the stroke detection switch is the Hall switch, set up magnet on the locking pole, along with the locking pole slides, the position of magnet also changes thereupon, and then changes the magnetic field at Hall switch place to realize the full stroke position detection of locking pole. When the stroke detection switch is a slide rheostat, a sliding block is arranged on the locking rod, the sliding block drives a sliding sheet of the slide rheostat to move along with the sliding of the locking rod, and then the resistance value of the slide rheostat is changed, so that the full stroke position detection of the locking rod is realized. Through the above design, through setting up the stroke detection switch who is used for detecting the position of lock pole, through the mode that detects magnetic field variation or resistance change, realize the full stroke detection of lock pole, not only break through the restriction of traditional multiple check point design, simple structure moreover.

In one embodiment, the drive is a motor; the driving medium includes: the output gear is connected with the driver and the driving gear is connected with the output gear; the output gear and the driving gear are coaxial; the locking rod is provided with a rack which is meshed with the driving gear. The motor is used as a driver, the driving gear is driven by the output gear, and the locking rod is driven by the driving gear, so that the locking rod is driven to slide, the structure is simple, and the control precision is high.

In one embodiment, the full-stroke-detecting electronic lock further includes: a gear box connected between the driver and the transmission member. The gear box can increase the rotating torque of the motor, and is favorable for improving the thrust and the holding force applied to the locking rod.

In one embodiment, the locking rod is provided with a surrounding frame part sleeved with the driving gear; the rack is positioned on the inner side of the surrounding frame part. Enclose frame portion cup joint drive gear for the locking pole is difficult to separate with drive gear, improves the stability of equipment operation.

In one embodiment, the full-stroke-detecting electronic lock further includes: a multi-point feedback assembly connected to the transmission member; the multipoint feedback assembly comprises: a PCBA (printed Circuit Board Assembly) Board mounted on the base, a plurality of micro-switches connected to the PCBA Board, and a slider for triggering the micro-switches; the driving medium still includes: an unlocking screw rod connected with the output gear; the unlocking screw rod is coaxial with the output gear; the unlocking screw rod penetrates through the sliding piece. The multi-point feedback assembly can detect specific position points of the locking rod, and can be used as an optional or secondary detection structure. When the transmission part acts, the unlocking screw rod drives the sliding part to slide linearly, and the micro switch is triggered through the sliding part, so that a corresponding feedback signal is triggered.

In one embodiment, the full-stroke-detecting electronic lock further includes: a manual unlocking assembly connected to the transmission member; the manual unlocking assembly comprises: the unlocking pull rod is connected with the sliding piece, the pull rope is connected with the unlocking pull rod, and the elastic piece is connected with the unlocking pull rod; one end of the pull rope is connected with the unlocking pull rod, and the other end of the pull rope extends to the outside of the base. When the driver is abnormal or needs to be unlocked emergently, a user drives the unlocking pull rod to slide by pulling the pull rope, and drives the transmission piece to rotate reversely through the unlocking pull rod, so that the purpose of unlocking the locking rod is achieved.

In one embodiment, the multipoint feedback component further comprises: connecting a terminal female plug of the PCBA board; the terminal female plug is positioned on the outer side of the base. Through the female quick-connect of inserting of terminal, be convenient for the dismouting with the public high-speed joint of inserting of terminal.

In one embodiment, the travel detection switch and the driver are respectively connected with the PCBA board. The stroke detection switch and the driver are respectively connected to the PCBA board, and the PCBA board is used as a control board, so that the circuit layout of the equipment is simplified, and external wiring ports are reduced.

In one embodiment, the full-stroke-detecting electronic lock further includes: a gasket mounted on the base; the sealing gasket is sleeved with the locking rod. The sealing gasket is used for enhancing the sealing performance of the base at the position of the locking rod and improving the dustproof and waterproof performance.

In one embodiment, the full-stroke-detecting electronic lock further comprises: a face cover connected with the base; an accommodating cavity for accommodating the driver, the locking rod and the transmission piece is formed between the surface cover and the base. The storage cavity formed between the surface cover and the base can play a role in storing and protecting the driver, the locking rod and the transmission piece.

Drawings

FIG. 1 is a perspective view of an electronic lock with full stroke detection according to an embodiment of the present invention;

FIG. 2 is a perspective view of the electronic lock for full stroke detection shown in FIG. 1 from another perspective;

FIG. 3 is a partial view one of the full stroke sensing electronic lock of FIG. 1;

FIG. 4 is a second partial view of the full stroke electronic lock shown in FIG. 1;

FIG. 5 is a fragmentary view three of the full stroke sensing electronic lock shown in FIG. 1;

FIG. 6 is a fourth partial view of the full stroke detected electronic lock shown in FIG. 1;

FIG. 7 is another perspective view of a partial view four of the full stroke sensing electronic lock shown in FIG. 6;

fig. 8 is a schematic view of a transmission member in the full stroke detected electronic lock shown in fig. 6.

The meaning of the reference symbols in the drawings is:

100-electronic lock for full stroke detection;

10-base, 11-sealing gasket;

20-a driver;

30-a locking rod, 31-a rack and 32-a surrounding frame part;

40-transmission piece, 41-output gear, 42-driving gear, 43-unlocking screw;

50-stroke detection switch;

60-a gearbox;

70-multipoint feedback component, 71-PCBA board, 72-microswitch, 73-sliding piece, 731-bump, 74-terminal female plug;

80-manual unlocking component, 81-unlocking pull rod, 82-pull rope and 83-elastic component;

90-face cover, 91-filling block.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 to 8, an electronic lock 100 for full stroke detection according to an embodiment of the present invention is shown.

As shown in fig. 1 to 4, the electronic lock 100 for full stroke detection includes: the safety lock comprises a base 10, an actuator 20 installed on the base 10, a locking rod 30 slidably arranged on the base 10, a transmission member 40 connected between the actuator 20 and the locking rod 30, and a stroke detection switch 50 arranged adjacent to the locking rod 30. The base 10 is used to carry the driver 20, the locking lever 30, the transmission member 40, and the stroke detection switch 50. The driver 20 slides the locking rod 30 via the transmission member 40 to achieve locking and unlocking. The stroke detection switch 50 detects a change in position of the full stroke of the lock lever 30.

The electronic lock 100 with full stroke detection will be further described with reference to fig. 1 to 8.

As shown in fig. 4, in the present embodiment, the driver 20 is a motor. Accordingly, as shown in fig. 8, the transmission member 40 includes: an output gear 41 connected to the driver 20 and a drive gear 42 connected to the output gear 41. The output gear 41 and the drive gear 42 are coaxial. The lock lever 30 is provided with a rack gear 31 that engages the drive gear 42. The motor is used as a driver 20, the driving gear 42 is transmitted through the output gear 41, and then the locking rod 30 is transmitted through the driving gear 42, so that the locking rod 30 is driven to slide, the structure is simple, and the control precision is high.

In the case that the driver 20 is a motor, as shown in fig. 4, in this embodiment, the electronic lock 100 for full stroke detection further includes: a gearbox 60 connected between the drive 20 and the transmission member 40. The gear box 60 can increase the rotational torque of the motor, facilitating the lifting of the pushing and holding force applied to the locking lever 30.

As shown in fig. 5 and 6, in the present embodiment, the lock lever 30 is provided with the surrounding frame portion 32 to which the drive gear 42 is fitted. The rack 31 is located inside the peripheral frame portion 32. The surrounding frame part 32 is sleeved with the driving gear 42, so that the locking rod 30 is not easy to separate from the driving gear 42, and the operation stability of the device is improved.

It should be noted that in other embodiments, the driver 20 may also be configured with other types of driving mechanisms, such as an electromagnet, and the transmission member 40 may be modified accordingly.

As shown in fig. 4 to 7, in the present embodiment, the stroke detection switch 50 is a hall switch, and the lock lever 30 is provided with a magnet that slides synchronously with the lock lever 30, the magnet being used to change the magnetic field at which the stroke detection switch 50 is located. In other embodiments, the stroke detecting switch 50 may be a slide rheostat, and the locking rod 30 is provided with a slider that slides synchronously with the locking rod 30, and the slider is used to change the resistance value of the stroke detecting switch 50.

In addition, as shown in fig. 4 and 5, in this embodiment, the electronic lock 100 for full stroke detection may further include: a multipoint feedback assembly 70 connected to the transmission 40. The multipoint feedback assembly 70 includes: a PCBA board 71 mounted on the base 10, a plurality of microswitches 72 connected to the PCBA board 71, and a slider 73 for activating the microswitches 72. Accordingly, as shown in fig. 8, the transmission member 40 further includes: an unlocking screw 43 connected to the output gear 41. The unlocking screw 43 is coaxial with the output gear 41. The unlocking screw 43 is inserted into the slider 73. The multi-point feedback assembly 70 can detect a specific number of position points of the detent lever 30 and can be used as an alternative or secondary detection structure. When the transmission member 40 is actuated, the unlocking screw 43 drives the sliding member 73 to slide linearly, and the sliding member 73 triggers the micro switch 72, so that a corresponding feedback signal is triggered.

In the present embodiment, the number of the micro switches 72 is two, one of the micro switches 72 is used to detect the locked state of the lock lever 30, and the other micro switch 72 is used to detect the unlocked state of the lock lever 30.

In addition, in the present embodiment, the output gear 41, the driving gear 42, and the unlocking screw 43 are integrally formed, which is strong in structural stability and good in transmission synchronization.

As shown in fig. 7, the slider 73 is provided with a projection 731 for touching the micro switch 72, and the projection 731 touches the micro switch 72 at a corresponding position as the slider 73 slides, thereby generating a feedback signal corresponding to the position of the lock lever 30.

Further, as shown in fig. 4 to 7, the electronic lock 100 with full stroke detection may further include: a manual unlocking assembly 80 of the transmission 40 is connected. The manual unlocking assembly 80 includes: an unlocking lever 81 connected to the sliding member 73, a pulling rope 82 connected to the unlocking lever 81, and an elastic member 83 connected to the unlocking lever 81. One end of the pulling rope 82 is connected with the unlocking pull rod 81, and the other end of the pulling rope 82 extends to the outside of the base 10. When the driver 20 is abnormal or needs emergency unlocking, a user drives the unlocking pull rod 81 to slide by pulling the pull rope 82, and drives the transmission member 40 to rotate reversely through the unlocking pull rod 81, so as to achieve the purpose of unlocking the locking rod 30.

As shown in fig. 5, in the present embodiment, the unlocking lever 81 is provided with a T-shaped groove, and one end of the pulling rope 82 is caught in the T-shaped groove while the other end extends to the outside of the base 10.

In addition, as shown in fig. 4 and 5, the multipoint feedback assembly 70 may further include: and terminal female pins 74 of the PCBA board 71 are connected. The terminal female plug 74 is located outside the base 10. The female terminal plug 74 can be quickly connected with the male terminal plug, so that the assembly and disassembly are convenient.

In order to facilitate wiring and simplify the structure of the apparatus, in the present embodiment, the stroke detection switch 50 and the actuator 20 are connected to a PCBA board 71, respectively. The stroke detection switch 50 and the driver 20 are respectively connected to the PCBA board 71, and the PCBA board 71 is used as a control board, which facilitates simplification of the circuit layout of the device and reduction of external connection ports.

As shown in fig. 1 to 3, in the present embodiment, the electronic lock 100 for full stroke detection further includes: a face cover 90 attached to the base 10. A receiving cavity for receiving the actuator 20, the locking lever 30, and the transmission member 40 is formed between the cover 90 and the base 10. The receiving cavity formed between the cover 90 and the base 10 can receive and protect the actuator 20, the locking rod 30, and the transmission member 40.

Further, in this embodiment, the surface cover 90 is provided with a mounting groove, and one end of the pulling rope 82 connected with the unlocking pull rod 81 is located in the mounting groove, so as to facilitate disassembly and assembly. In addition, a filling block 91 is provided on the surface cover 90 and placed in the mounting groove, for protecting the unlocking lever 81, the elastic member 83, and the pulling rope 82.

As shown in fig. 2 and 5, in this embodiment, the electronic lock 100 for full stroke detection further includes: a gasket 11 mounted on the base 10. The gasket 11 is fitted around the lock rod 30. The sealing gasket 11 is used for enhancing the sealing performance of the base 10 at the position of the locking rod 30 and improving the dustproof and waterproof performance.

In operation, the actuator 20, as shown in FIG. 4, slides the locking rod 30 via the transmission member 40. The stroke detection switch 50 is used to detect the position of the full stroke of the lock lever 30 and convert it into an electric signal feedback. The stroke detection switch 50 may be a hall switch or a sliding rheostat. When the stroke detection switch 50 is a hall switch, the magnet is arranged on the locking rod 30, and along with the sliding of the locking rod 30, the position of the magnet changes, so that the magnetic field of the hall switch is changed, and the full stroke position detection of the locking rod 30 is realized. When the stroke detection switch 50 is a slide rheostat, a slider is disposed on the locking rod 30, and the slider drives a slide sheet of the slide rheostat to move along with the sliding of the locking rod 30, so as to change the resistance value of the slide rheostat, thereby realizing the full stroke position detection of the locking rod 30.

The electronic lock 100 with the full-stroke detection function realizes the full-stroke detection of the locking rod 30 by setting the stroke detection switch 50 for detecting the position of the locking rod 30 and detecting the change of the magnetic field or the change of the resistance value, thereby not only breaking through the limitation of the traditional multi-detection-point design, but also having simple structure.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the utility model, and these changes and modifications are all within the scope of the utility model. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electronic lock that full stroke detected, characterized by includes:

a base;

a driver mounted on the base;

the locking rod is arranged on the base in a sliding mode;

a transmission member connected between the driver and the lock lever; and

a stroke detection switch disposed adjacent to the lock lever; the travel detection switch is a Hall switch, the locking rod is provided with a magnet which synchronously slides along with the locking rod, and the magnet is used for changing a magnetic field where the travel detection switch is located; or, the stroke detection switch is a slide rheostat, the locking rod is provided with a slide block which slides synchronously along with the locking rod, and the slide block is used for changing the resistance value of the stroke detection switch.

2. The full stroke detected electronic lock of claim 1, wherein the actuator is a motor; the transmission member includes: the output gear is connected with the driver and the driving gear is connected with the output gear; the output gear and the drive gear are coaxial; the locking rod is provided with a rack which is meshed with the driving gear.

3. The full stroke detected electronic lock of claim 2, further comprising: a gearbox connected between the drive and the transmission.

4. The full-stroke detecting electronic lock as claimed in claim 2, wherein the locking rod is provided with a surrounding frame part sleeved with the driving gear; the rack is located on the inner side of the surrounding frame portion.

5. The full stroke detected electronic lock of claim 2, further comprising: a multi-point feedback assembly connected to the transmission; the multipoint feedback assembly comprises: the device comprises a PCBA board mounted on a base, a plurality of micro switches connected with the PCBA board, and a sliding piece used for triggering the micro switches; the transmission part further comprises: an unlocking screw connected with the output gear; the unlocking screw is coaxial with the output gear; the unlocking screw rod penetrates through the sliding piece.

6. The full stroke detected electronic lock of claim 5, further comprising: a manual unlocking assembly connected to the transmission member; the manual unlocking assembly includes: the unlocking pull rod is connected with the sliding piece, the pull rope is connected with the unlocking pull rod, and the elastic piece is connected with the unlocking pull rod; one end of the pull rope is connected with the unlocking pull rod, and the other end of the pull rope extends to the outside of the base.

7. The full stroke detected electronic lock of claim 5, wherein the multi-point feedback assembly further comprises: connecting a terminal female plug of the PCBA board; the terminal female plug is located on the outer side of the base.

8. The full stroke detection electronic lock of claim 5, wherein the stroke detection switch and the actuator are each connected to the PCBA board.

9. The full-stroke detecting electronic lock of claim 1, further comprising: a gasket mounted on the base; the sealing gasket is sleeved with the locking rod.

10. The full stroke detected electronic lock of any one of claims 1 to 9, further comprising: the surface cover is connected with the base; and a containing cavity for containing the driver, the locking rod and the transmission piece is formed between the surface cover and the base.