Self-locking and ejecting mechanism suitable for new energy charging gun

Abstract

The utility model discloses a self-locking and pop-up mechanism suitable for a new energy charging gun, which comprises an alternating current / direct current charging gun and a mechanism assembly dynamically matched with the alternating current / direct current charging gun, a connecting limiting hole is formed in the enclosure wall of a charging port of the alternating current / direct current charging gun, and the mechanism assembly comprises a motor lock mechanism. The motor lock mechanism is internally provided with a turbine screw speed reducing mechanism provided with a bolt, the motor lock mechanism synchronously drives a trigger / reset unit dynamically abutting against the alternating current and direct current charging gun, and the trigger / reset unit comprises a microswitch electrically connected with the motor lock mechanism; conventional mechanical defects are avoided, mechanical elasticity of the charging gun head is adopted for sensing, the auxiliary popping function of the gun body after unlocking is added, the gun lock mechanism can resist high-pressure and high-frequency plugging and pulling actions in the gun plugging and pulling process of a user, the problems of breakage and abrasion are solved, stability is improved, the operation and maintenance cost of an enterprise for a charging gun assembly is reduced, and the safety of the enterprise is improved. And the revenue benefit and brand value of an enterprise are greatly improved.

Description

Technical Field

[0001] The utility model relates to a self-locking and ejecting mechanism, in particular to a self-locking and ejecting mechanism suitable for a new energy charging gun. Background Art

[0002] In view of the large-scale promotion and popularization of new energy charging technology and the large-scale supporting use of AC and DC charging piles, the self-locking safety technology of the charging gun is a key basic technology. During the discharge of the AC and DC charging gun, the gun body needs to be firmly self-locked in the fixed gun seat and needs to be able to withstand an external pull-off force of 1000N to ensure that the self-locking mechanism of the gun body is firm and stable during discharge, and to ensure that the charging and discharging operations comply with the safety laws and regulations of various countries.

[0003] Recently, it has been discovered that the lock mechanisms of conventional AC and DC charging stations on the market often experience failure and breakage of lock pins and lock buckles. Apart from the material strength, plasticity, and fatigue resistance of the lock pins and lock buckles themselves, most of the failures are caused by the low reliability of the self-locking mechanism. For example, there is no safety mechanism in the self-locking mechanism, and the main mechanism movement has insufficient safety clearance to avoid air, which causes various mechanical problems in the locking and unlocking process of the charging gun, such as breakage of the lock pin and lock buckle, large friction interference when inserting or removing the gun, and obstructed interference when inserting the gun. The company's operation and maintenance department needs to frequently replace and maintain the matching charging gun assembly, which seriously reduces the customer's human-machine charging interaction experience, reduces the product life span, increases the company's operation and maintenance costs, and ultimately greatly affects the brand value of new energy companies. Utility Model Content

[0004] In order to solve the deficiencies existing in the above-mentioned technology, the utility model provides a self-locking and ejecting mechanism suitable for a new energy charging gun.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: it includes an AC / DC charging gun, a connection limit hole is opened on the wall of the charging port of the AC / DC charging gun, and also includes a mechanism assembly that dynamically cooperates with the AC / DC charging gun, the mechanism assembly includes a motor lock mechanism, the motor lock mechanism has a built-in turbine screw reduction mechanism equipped with a latch, the motor lock mechanism synchronously drives a trigger / reset unit that dynamically abuts the AC / DC charging gun, and the trigger / reset unit includes a micro switch electrically connected to the motor lock mechanism.

[0006] Furthermore, the mechanism assembly is implemented in a manner of being installed in a charging gun seat or a charging port seat.

[0007] Furthermore, the connection limit hole changes its depth position in the charging gun seat or the charging port seat by plugging in the AC or DC charging gun to dynamically correspond to the turbine screw reduction mechanism, and the horizontal height of the turbine screw reduction mechanism is higher than the horizontal height of the charging port of the AC or DC charging gun.

[0008] Furthermore, the latch is vertically arranged and driven by a wheel screw reduction mechanism, and the latch is implemented in a manner that a portion of the latch extending out of the motor lock mechanism housing extends into or out of the connection limit hole.

[0009] Furthermore, a driving pulley driven by a turbine screw reduction mechanism is arranged outside the housing of the motor lock mechanism, and the driving pulley is engaged with a driven pulley through a synchronous belt.

[0010] Furthermore, the transmission ratio of the synchronous belt is 1:1.

[0011] Furthermore, the trigger / reset unit also includes a coaxial cam that is transmission-connected to the driven pulley through a connecting rod, and the coaxial cam is located in the center of the AC / DC charging gun.

[0012] Furthermore, the coaxial cam is equipped with a spring pin, and the spring pin is located between the coaxial cam and the AC / DC charging gun.

[0013] Furthermore, the spring pin includes a return spring, a pin rod body, and a top block which are integrally formed in sequence. The return spring abuts against the coaxial cam, a trigger protrusion is formed on the lower side of the outer ring surface of the pin rod body, and the top block dynamically abuts against the charging port of the AC / DC charging gun.

[0014] Furthermore, the micro switch is located directly below the pin rod body and is in dynamic contact with the triggering protrusion.

[0015] The utility model discloses a self-locking and ejecting mechanism suitable for new energy charging guns, which avoids the mechanical defects of the gun locking mechanism in the conventional charging gun seat assembly, adopts the mechanical elastic force sensing of the charging gun head, and increases the auxiliary ejecting function of the gun body after unlocking, so that the gun locking mechanism can withstand high-pressure and high-frequency plugging and pulling actions during the user's plugging and pulling out of the gun, and solves many problems such as breakage and wear that often occur in the locking pin and lock buckle of the conventional charging gun seat, improves the stability of the gun locking mechanism during the discharge of the charging gun, reduces the company's operation and maintenance costs for the charging gun assembly, and greatly improves the company's revenue benefits and brand value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the internal structure of the motor lock mechanism of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the spring pin of the utility model.

[0019] In the figure: 1. AC / DC charging gun; 2. Mechanism assembly; 3. Motor lock mechanism; 4. Turbine screw reduction mechanism; 5. Latch; 6. Driving pulley; 7. Synchronous belt; 8. Driven pulley; 9. Connecting rod; 10. Coaxial cam; 11. Spring pin; 12. Reset spring; 13. Pin rod body; 14. Top block; 15. Trigger bump; 16. Micro switch; 17. Connection limit hole. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 1-3 As shown together, this embodiment is about a self-locking and ejecting mechanism suitable for a new energy charging gun, including an AC / DC charging gun 1, and a connection limit hole 17 is opened on the wall surrounding the charging port of the AC / DC charging gun 1, such as Figure 1 As shown, the connection limit hole 17 is specifically opened on the upper side of the charging port wall, and also includes a mechanism assembly 2 that dynamically cooperates with the AC / DC charging gun 1, the mechanism assembly 2 includes a motor lock mechanism 3, the motor lock mechanism 3 has a built-in turbine screw reduction mechanism 4 equipped with a latch 5, the motor lock mechanism 3 synchronously drives a trigger / reset unit that dynamically abuts the AC / DC charging gun 1, and the trigger / reset unit includes a micro switch 16 electrically connected to the motor lock mechanism 3.

[0022] It should be noted that the AC / DC charging gun 1 of this embodiment is Figure 1 As shown, the charging port specifically includes an AC charging port and a DC charging port, and the AC charging port and the DC charging port are designed to be stacked up and down. This is the prior art. It is needless to say that the AC / DC charging gun 1 is connected to the charging pile or charging station at the front end through a cable.

[0023] The mechanism assembly 2 is implemented by being installed in a charging gun seat or a charging port seat. It should be noted that the charging gun seat specifically refers to the charging gun seat of the charging station and / or charging pile, and the charging port seat specifically refers to the charging port seat on the new energy vehicle for plugging in the charging gun; on this basis, it is not necessary to explain that both the charging gun seat and the charging port seat can be adapted to the AC / DC charging gun 1 shown in this embodiment.

[0024] The connecting limit hole 17 changes its depth position in the charging gun seat or the charging port seat by plugging in the AC / DC charging gun 1 to dynamically correspond to the turbine screw reduction mechanism 4. It should be added that the position of the motor lock mechanism 3 in the charging gun seat or the charging port seat does not change, and therefore, the position of the turbine screw reduction mechanism 4 located in the motor lock mechanism 3 does not change either. Therefore, the dynamic correspondence is implemented by actively plugging in the depth of the AC / DC charging gun 1 to reach the position of the turbine screw reduction mechanism 4; on this basis, the horizontal height of the turbine screw reduction mechanism 4 is higher than the horizontal height of the charging port of the AC / DC charging gun 1.

[0025] The latch 5 is vertically arranged and driven by the wheel screw reduction mechanism 4, and the latch 5 is implemented in a manner that the portion thereof extending out of the housing of the motor lock mechanism 3 extends into or out of the connection limit hole 17. Based on the above structure, and as Figure 1 As shown, when the AC / DC charging gun 1 is plugged into the standard depth position, the motor lock mechanism 3 is located directly above the charging port of the AC / DC charging gun 1 and the latch 5 can just extend into the connection limit hole 17 .

[0026] A driving pulley 6 driven by a turbine screw reduction mechanism 4 is arranged outside the housing of the motor lock mechanism 3. The driving pulley 6 is meshed with a driven pulley 8 through a synchronous belt 7 with a transmission ratio of 1:1. When the turbine screw reduction mechanism 4 is started, it not only drives the latch 5 to move in the vertical direction, but also drives the driving pulley 6 to rotate through the meshing transmission of the gear set, and then drives the driven pulley 8 to rotate through the synchronous belt 7.

[0027] The trigger / reset unit also includes a coaxial cam 10 connected to the driven pulley 8 through a connecting rod 9. The coaxial cam 10 is located in the center of the AC / DC charging gun 1. The coaxial cam 10 is equipped with a spring pin 11. The spring pin 11 is located between the coaxial cam 10 and the AC / DC charging gun 1. Therefore, it can be understood that the spring pin 11 is aligned with the center of the AC / DC charging gun 1. In this embodiment, Figure 1 As shown, the spring pin 11 is aligned with the position between the two charging ports of the AC / DC charging gun 1 .

[0028] The spring pin 11 includes a reset spring 12, a pin rod body 13, and a top block 14 which are integrally formed in sequence. The reset spring 12 abuts against the coaxial cam 10. A trigger protrusion 15 is formed on the lower side of the outer ring surface of the pin rod body 13. The top block 14 dynamically abuts against the charging port of the AC / DC charging gun 1. It can be understood that the top block 14 abuts against the position between the two charging ports of the AC / DC charging gun 1. Dynamic abutment refers to when the deep opening of the AC / DC charging gun 1 abuts against the top block 14.

[0029] The micro switch 16 is located directly below the pin rod body 13 and is in dynamic contact with the trigger protrusion 15 . The micro switch 16 is a trigger stroke type micro switch.

[0030] The working principle of this embodiment is as follows:

[0031] When charging is required, the user removes the AC / DC charging gun 1 from the charging pile, holds the AC / DC charging gun 1 and inserts the gun head into the charging gun seat or charging port seat of the target device;

[0032] During the insertion process, the AC / DC charging gun 1 abuts against the top block 14 and continues to apply force to press the spring pin 11 to compress the return spring 12, so that the overall length of the spring pin 11 is shortened. During this process, the triggering protrusion 15 touches the micro switch 16, and the micro switch 16 works and sends a start signal to the motor lock mechanism 3. The turbine screw reduction mechanism 4 drives the pin 5 to extend downward until the pin 5 extends into the specified position in the connection limit hole 17, and the AC / DC charging gun 1 is locked;

[0033] At the same time, the driving pulley 6 is driven to rotate, and then the driven pulley 8 is driven to rotate through the synchronous belt 7, and the driven pulley 8 drives the coaxial cam 10 through the connecting rod 9. Figure 1 When the cam rotates counterclockwise as shown in the figure, the cam cooperates with the spring pin 11 to move a small distance toward the coaxial cam 10, and the charging connection is completed.

[0034] When charging is completed, the gun needs to be unlocked and the unlocking signal is communicated to the front-end device, and the motor lock mechanism 3 is started, and the turbine screw reduction mechanism 4 drives the latch 5 to be retracted until it exits the connection limit hole 17;

[0035] At the same time, the driving pulley 6 is driven to rotate, and then drives the driven pulley 8 to rotate through the synchronous belt 7. The driven pulley 8 then drives the coaxial cam 10 to reset and rotate clockwise through the connecting rod 9. The cam cooperates with the spring pin 11 to be pushed toward the side of the AC / DC charging gun 1 by the coaxial cam 10, and under the action of the elastic force of the reset spring 12, an outward thrust is applied to the AC / DC charging gun 1 through the top block 14 (assisted by the user's light pulling of the gun), and the unlocking and pulling of the gun is completed.

[0036] In this way, the self-locking and ejection mechanism suitable for new energy charging guns disclosed by the utility model avoids the mechanical defects of the gun locking mechanism in the conventional charging gun seat assembly, adopts mechanical elastic force sensing of the charging gun head, and adds an auxiliary ejection function of the gun body after unlocking, so that the user can withstand high-pressure and high-frequency plugging and unplugging actions during the plugging and unplugging process of the gun, and solves many problems such as breakage and wear that often occur in the lock pin and lock buckle of the conventional charging gun seat, improves the stability of the gun locking mechanism during the discharge of the charging gun, reduces the company's operation and maintenance costs for the charging gun assembly, and greatly improves the company's revenue benefits and brand value.

[0037] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A self-locking and ejecting mechanism suitable for a new energy charging gun, comprising an AC / DC charging gun (1), characterized in that: The AC / DC charging gun (1) has a connection limit hole (17) on the wall surrounding the charging port, and also includes a mechanism assembly (2) that dynamically cooperates with the AC / DC charging gun (1), the mechanism assembly (2) includes a motor lock mechanism (3), the motor lock mechanism (3) has a built-in turbine screw reduction mechanism (4) equipped with a latch (5), the motor lock mechanism (3) synchronously drives a trigger / reset unit that dynamically abuts the AC / DC charging gun (1), and the trigger / reset unit includes a micro switch (16) that is electrically connected to the motor lock mechanism (3).

2. The self-locking and ejecting mechanism for a new energy charging gun according to claim 1 is characterized in that: The mechanism assembly (2) is implemented in a manner of being installed in a charging gun seat or a charging port seat.

3. The self-locking and ejecting mechanism for a new energy charging gun according to claim 2 is characterized in that: The connection limit hole (17) changes its depth position in the charging gun seat or the charging port seat by plugging the AC / DC charging gun (1) to dynamically correspond to the turbine screw reduction mechanism (4), and the horizontal height of the turbine screw reduction mechanism (4) is higher than the horizontal height of the charging port of the AC / DC charging gun (1).

4. The self-locking and ejecting mechanism for a new energy charging gun according to claim 3 is characterized in that: The latch (5) is arranged vertically and driven by a wheel screw reduction mechanism (4), and the latch (5) is implemented in a manner that the portion of the latch (5) extending out of the housing of the motor lock mechanism (3) extends into or out of the connection limit hole (17).

5. The self-locking and ejecting mechanism for a new energy charging gun according to claim 1 is characterized in that: A driving pulley (6) driven by a turbine screw speed reduction mechanism (4) is arranged outside the housing of the motor lock mechanism (3), and the driving pulley (6) is meshed with a driven pulley (8) through a synchronous belt (7).

6. The self-locking and ejecting mechanism for a new energy charging gun according to claim 5 is characterized in that: The transmission ratio of the synchronous belt (7) is 1:

1.

7. The self-locking and ejecting mechanism for a new energy charging gun according to claim 5 is characterized in that: The trigger / reset unit also includes a coaxial cam (10) which is transmission-connected to the driven pulley (8) via a connecting rod (9); the coaxial cam (10) is located in the center of the AC / DC charging gun (1).

8. The self-locking and ejecting mechanism for a new energy charging gun according to claim 7 is characterized in that: The coaxial cam (10) is matched with a spring pin (11), and the spring pin (11) is located between the coaxial cam (10) and the AC / DC charging gun (1).

9. The self-locking and ejecting mechanism for a new energy charging gun according to claim 8 is characterized in that: The spring pin (11) comprises a return spring (12), a pin rod body (13), and a top block (14) which are integrally formed in sequence; the return spring (12) abuts against the coaxial cam (10); a triggering protrusion (15) is formed on the lower side of the outer ring surface of the pin rod body (13); and the top block (14) dynamically abuts against the charging port of the AC / DC charging gun (1).

10. The self-locking and ejecting mechanism for a new energy charging gun according to claim 9, characterized in that: The micro switch (16) is located directly below the pin rod body (13) and is in dynamic contact with the trigger convex block (15).

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