Charging gun convenient to unlock

Abstract

The charging gun convenient to unlock comprises a gun body, a first microswitch and an electromagnet are arranged in the gun body, and the first microswitch is electrically connected with a charging port of the gun body and used for enabling a locking mechanism of a vehicle charging port to operate. One end of a movable iron core of the electromagnet abuts against a transmission rod of the microswitch, and an emergency button capable of moving front and back is arranged on one side of the gun body and abuts against the other end face of the movable iron core of the electromagnet. Through the emergency button arranged on one side of the gun body, when the gun body breaks down, only the emergency button needs to be pushed to move in the direction of the vehicle charging port, the movable iron core of the electromagnet triggers the first electromagnet, then the locking mechanism obtains an unlocking signal, connection between the vehicle charging port and the charging gun is unlocked, the operation difficulty is greatly reduced, and the safety is improved. And the corresponding unlocking time is prolonged, so that the product has the advantages of quick unlocking and convenience in operation.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, in particular to a charging gun which is convenient to unlock. Background Art

[0002] An electric vehicle (BEV) refers to a vehicle that uses an on-vehicle power source and drives the wheels with an electric motor, meeting the requirements of road traffic and safety regulations. Since electric vehicles have relatively less impact on the environment compared to traditional vehicles, their prospects are widely regarded as promising. In recent years, the popularity of electric vehicles has been increasing, and the problem of how to charge electric vehicles in a timely and effective manner has also emerged. As a device specifically designed to facilitate the timely charging of products such as electric vehicles, charging piles have received extensive attention and recognition since their inception.

[0003] When the existing charging gun is connected to the vehicle charging port, the hook of the charging gun is buckled in the card slot of the vehicle charging port, and the locking mechanism of the vehicle charging port operates and extends the ejector rod to abut against the back of the hook to prevent the charging gun from being pulled out during the charging process, which may cause the risks of electric shock to personnel and damage to equipment. When an abnormal situation occurs between the charging gun and the vehicle during the use state, resulting in the charging gun being unable to disengage from the vehicle charging port due to a malfunction, a small hole is provided in the charging gun, and a push switch is provided in the small hole. By inserting a fault stick into the small hole and triggering the push switch, the lock core in the charging gun is controlled to retract, releasing the connection with the vehicle charging port. However, the existing design has the defect that it is inconvenient to trigger the push switch and cannot be quickly unlocked. Therefore, the applicant has made a beneficial design and found a solution to the above problems. The technical solution to be introduced below was generated under this background. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned traditional charging gun design and provide a product with quick unlocking and convenient operation.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A charging gun which is convenient to unlock, comprising a gun body. A first micro switch and an electromagnet are arranged inside the gun body. The first micro switch is electrically connected to the charging port of the gun body and is used to unlock the locking mechanism of the vehicle charging port. One end of the moving iron core of the electromagnet abuts against the transmission rod of the first micro switch, and an emergency button that can move back and forth is arranged on one side of the gun body and abuts against the other end face of the moving iron core of the electromagnet.

[0007] Preferably, a rotatable linkage plate is provided on the gun body. A hook block is provided at one end of the linkage plate. The linkage plate is provided with a trigger post. The gun body is provided with a pressable button which abuts against the other end of the linkage plate. The button is provided with a limit block and is arranged above the moving iron core of the electromagnet. A first housing and a second housing are fixedly arranged in the gun body. The first housing is fixedly connected to the second housing by screws.

[0008] Preferably, a support rod is provided on the inner side wall of the first housing. A wire groove is provided below the support rod. The wire groove is provided with a perforation. A second microswitch is provided outside the first housing. The transmission rod of the second microswitch is located below the trigger post. A counterbore is provided at the top of the first housing. The counterbore is provided with a first spring which abuts against the linkage plate.

[0009] Preferably, a tightening bushing is provided at one end inside the second housing. A top block is provided at the other end inside the second housing. The second housing is provided with a blind hole. A guide post is provided at the top of the second housing. The guide post is provided with a second spring which abuts against the button.

[0010] Preferably, the first microswitch is fixedly installed in the first housing and abuts against the support rod.

[0011] Preferably, the electromagnet is provided in the second housing and abuts against the top block. The moving iron core of the electromagnet passes through the tightening bushing.

[0012] Preferably, the blind hole is provided with a telescopic movable rod. The blind hole is provided with a third spring which acts on the movable rod. The movable rod is provided with a transmission arm and is located on the moving track of the moving iron core of the electromagnet.

[0013] Preferably, the emergency button is provided with a contact surface which abuts against the movable rod.

[0014] Preferably, a wire threading block is provided inside the gun body and inside the first housing. The wire threading block is provided with a plurality of wire threading holes for wires to pass through and contracts inward. The wire threading holes of the wire threading block in the first housing coincide with the perforations.

[0015] Advantageous effects:

[0016] Compared with the prior art, the advantageous effects of the present utility model are as follows:

[0017] In the present utility model, through the emergency button provided on one side of the gun body, when a failure occurs to the gun body, only by pushing the emergency button to move towards the vehicle charging port, the moving iron core of the electromagnet can be triggered to trigger the first electromagnet, so that the locking mechanism can obtain an unlocking signal, unlocking the connection between the vehicle charging port and the charging gun, greatly reducing the operation difficulty and improving the unlocking response time, thereby overcoming the problems existing in the prior art mentioned in the background art, and making the product have the advantages of quick unlocking and convenient operation. Brief Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of a charging gun of the present utility model that is convenient to unlock;

[0019] Figure 2 is a schematic side sectional structural diagram of a charging gun of the present utility model that is convenient to unlock;

[0020] Figure 3 For the present utility model Figure 2 is a partial enlarged structural view of detail A of a charging gun of the present utility model that is convenient to unlock;

[0021] Figure 4 is a schematic sectional structural diagram of a charging gun of the present utility model that is convenient to unlock;

[0022] Figure 5 For the present utility model Figure 4 is a partial enlarged structural view of detail B of a charging gun of the present utility model that is convenient to unlock;

[0023] Figure 6 is an exploded view of a charging gun of the present utility model that is convenient to unlock;

[0024] The corresponding relationship between the reference numerals in the drawings and the component names is as follows:

[0025] Reference numerals: 1, gun body; 2, first housing; 3, second housing; 4, emergency button; 5, linkage plate; 6, button; 7, second microswitch; 8, movable rod; 9, wire threading block; 21, first microswitch; 22, support rod; 23, wire groove; 24, perforation; 25, counterbore; 26, first spring; 31, electromagnet; 32, reduced-diameter bushing; 33, top block; 34, blind hole; 35, guide post; 36, second spring; 37, third spring; 41, contact surface; 51, hook block; 52, trigger post; 61, limit block; 81, transfer arm; 91, wire threading hole. Detailed Description of the Preferred Embodiments

[0026] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0028] In the embodiments of the present utility model, "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the front and rear associated objects.

[0029] Reference example Figures 1 to 6 , a charging gun that is convenient to unlock, including a gun body 1. A first microswitch 21 and an electromagnet 31 are provided in the gun body 1. The first microswitch 21 is electrically connected to the charging port of the gun body 1 and is used to unlock the locking mechanism of the vehicle charging port. One end of the moving iron core of the electromagnet 31 abuts against the transmission rod of the first microswitch 21. An emergency button 4 that can move back and forth is provided on one side of the gun body 1 and abuts against the other end face of the moving iron core of the electromagnet 31;

[0030] It is worth mentioning that the gun body 1 is provided with a rotatable linkage plate 5. One end of the linkage plate 5 is provided with a hook block 51. The linkage plate 5 is provided with a trigger post 52. The gun body 1 is provided with a pressable button 6 that abuts against the other end of the linkage plate 5. The button 6 is provided with a limit block 61 and is arranged above the moving iron core of the electromagnet 31. A first housing 2 and a second housing 3 are fixedly arranged in the gun body 1. The first housing 2 is connected and fixed to the second housing 3 by screws. Since the linkage plate 5 and the button 6 are separately arranged, when the linkage plate 5 or the button 6 is damaged, only one of the components needs to be replaced, without replacing the whole, reducing the maintenance cost. The hook block 51 is buckled in the card slot of the vehicle charging port to connect the gun body 1 with the vehicle charging port. The trigger post 52 triggers a second microswitch 7. The second microswitch 7 is electrically connected to the charging port of the gun body 1 and is used to transmit a signal to the controller of the vehicle. The limit block 61 limits the travel distance of the button 6 when it is pressed down. The button 6 controls the hook block 51 to leave the card slot or prepares for entering the card slot. The first housing 2 and the second housing 3 play a role in protecting the first microswitch 21 and the electromagnet 31;

[0031] It is worth mentioning that a support rod 22 is provided on the inner side wall of the first housing 2. Below the support rod 22, there is a wire groove 23. The wire groove 23 is provided with a perforation 24. On the outside of the first housing 2, there is a second microswitch 7. The transmission rod of the second microswitch 7 is located below the trigger post 52. On the top of the first housing 2, there is a counterbore 25. The counterbore 25 is provided with a first spring 26 and abuts against the linkage plate 5. The wires of the electromagnet 31 and the first microswitch 21 pass through the wire groove 23, and successively pass through the wire passing holes 91 of the wire passing block 9 in the perforation 24 and the gun body 1, and enter the relatively sealed cavity of the gun body 1. The wire of the second microswitch 7 passes through the wire passing hole 91 of the wire passing block 9 in the gun body 1 and enters the relatively sealed cavity of the gun body 1. The counterbore 25 prevents the first spring 26 from detaching. Through the action of the first spring 26 on the linkage plate 5, the hook block 51 is stably connected to the card slot, and the linkage plate 5 is reset;

[0032] It is worth mentioning that a tightening bushing is provided at one end inside the second housing 3, and a top block 33 is provided at the other end inside the second housing 3. The second housing 3 is provided with a blind hole 34. On the top of the second housing 3, there is a guide post 35. The guide post 35 is provided with a second spring 36 and abuts against the button 6. The reduced-diameter bushing 32 is closely attached to the moving iron core of the electromagnet 31 and the entrance of one end of the first housing 2 to prevent humid air from entering the first housing 2 and the second housing 3. The top block 33 provides a limiting and supporting function for the electromagnet 31. The blind hole 34 provides a guiding function for the movable rod 8. The guide post 35 prevents the second spring 36 from detaching. The second spring 36 resets the button 6 after it is pressed down;

[0033] It is worth mentioning that the first microswitch 21 is arranged inside the first housing 2 and abuts against the support rod 22. The support rod 22 provides strong support for the first microswitch 21;

[0034] It is worth mentioning that the electromagnet 31 is arranged inside the second housing 3 and abuts against the top block 33. The moving iron core of the electromagnet 31 passes through the tightening bushing. The moving iron core of the electromagnet 31 plays a role in transmitting the force arm;

[0035] It is worth mentioning that the blind hole 34 is provided with a telescopic movable rod 8. The blind hole 34 is provided with a third spring 37 and acts on the movable rod 8. The movable rod 8 is provided with a transmission arm 81 and is located on the moving track of the moving iron core of the electromagnet 31. The acting force of the third spring 37 on the movable rod 8 plays a role in resetting the emergency button 4;

[0036] It is worth mentioning that the emergency button 4 is provided with a contact surface 41 and abuts against the movable rod 8. The contact surface 41 is used in cooperation with the movable rod 8;

[0037] It is worth mentioning that a wire threading block 9 is provided inside the gun body 1 and the first housing 2. The wire threading block 9 is provided with a number of wire threading holes 91 for wires to pass through and contracts inward. The wire threading holes 91 of the wire threading block 9 in the first housing 2 coincide with the perforations 24. The material of the wire threading block 9 is set as rubber. The inwardly contracting wire threading holes 91 prevent humid air, rainwater, and dust from entering the cavity of the gun body 1 through the gap between the linkage plate 5 and the gun body 1. A relatively sealed cavity is formed inside the gun body 1 through the wire threading block 9, thereby extending the service life of the gun body 1.

[0038] The working principle of the present utility model is described as follows:

[0039] Apply a downward pressure to the button 6. The downward pressing of the button 6 causes one end of the linkage plate 5 to move downward and stores energy in the first spring 26 and the second spring 36. The downward movement of the linkage plate 5 causes the trigger post 52 to trigger the second microswitch 7. The other end hook block 51 of the linkage plate 5 moves upward, and the charging port of the gun body 1 is inserted into the vehicle charging port. At this time, since the second microswitch 7 is in the triggered state, the second microswitch 7 will send a signal that the gun body 1 is not connected to the vehicle charging port in place, preventing the locking mechanism of the vehicle charging port from operating;

[0040] When the force applied to the button 6 is released, the first spring 26 and the second spring 36 release their elastic forces to the linkage plate 5 and the button 6 respectively to reset them. The hook block 51 is buckled in the card slot of the vehicle charging port, and the trigger post 52 leaves the second microswitch 7. The controller of the vehicle receives the signal of the second microswitch 7, causing the locking mechanism of the vehicle charging port to operate, extending the ejector rod and abutting against the back of the hook block 51 to prevent the linkage plate 5 from moving during the charging process. At the same time, the electromagnet 31 is energized and the moving iron core retracts and maintains a distance from the transmission arm 81, and does not trigger the downward pressing of the transmission rod of the first microswitch 21.

[0041] When the charging stops, at this time, a failure occurs in the locking mechanism of the gun body 1 or the vehicle charging port, resulting in the gun body 1 being locked with the vehicle charging port. At this time, only need to apply a thrust to the emergency button 4 to move the emergency button 4 in the direction of the vehicle charging port. The contact surface 41 pushes the movable rod 8 to retract into the blind hole 34 and stores energy in the third spring 37. The transmission arm 81 then pushes the moving iron core of the electromagnet 31 to continue to move. Due to the energization of the electromagnet 31 and the elastic force released by the third spring 37, there will be a certain resistance when pushing the emergency button 4. Such a design is to prevent the user from accidentally touching the connection between the gun body 1 and the vehicle charging port under normal charging conditions;

[0042] When the moving iron core of the electromagnet 31 triggers the movement of the transmission rod of the first microswitch 21, the first microswitch 21 is switched from normally open to normally closed, enabling the controller in the vehicle to receive its signal and send an unlocking signal to the locking mechanism. Subsequently, the locking mechanism operates and retracts the ejector rod. At this time, the button 6 can be pressed to unlock the connection between the gun body 1 and the vehicle charging port.

[0043] Through the above design, the product can achieve the advantages of rapid unlocking and convenient operation.

[0044] The above content further elaborates on the present utility model in combination with specific embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as falling within the protection scope determined by the claims submitted for the present utility model.

Claims

1. A charging gun that is easy to unlock, comprising a gun body (1), characterized in that: The gun body (1) is provided with a first micro switch (21) and an electromagnet (31). The first micro switch (21) is electrically connected to the charging port of the gun body (1) and is used to unlock the locking mechanism of the vehicle charging port. One end of the moving iron core of the electromagnet (31) abuts against the transmission rod of the first micro switch (21). One side of the gun body (1) is provided with an emergency button (4) that can move forward and backward and abuts against the other end surface of the moving iron core of the electromagnet (31).

2. The charging gun that is easy to unlock according to claim 1, characterized in that: The gun body (1) is provided with a rotatable linkage plate (5), one end of the linkage plate (5) is provided with a hook block (51), the linkage plate (5) is provided with a trigger column (52), the gun body (1) is provided with a pressable button (6) and abuts against the other end of the linkage plate (5), the button (6) is provided with a limit block (61) and is arranged above the moving iron core of the electromagnet (31), and a first shell (2) and a second shell (3) are fixedly provided in the gun body (1), and the first shell (2) is connected and fixed to the second shell (3) by screws.

3. The charging gun that is easy to unlock according to claim 2, characterized in that: A support rod (22) is provided on the inner wall of the first shell (2), a wire groove (23) is provided below the support rod (22), and the wire groove (23) is provided with a through hole (24); a second micro switch (7) is provided on the outer side of the first shell (2), and a transmission rod of the second micro switch (7) is located below the trigger column (52); a countersunk hole (25) is provided on the top of the first shell (2), and the countersunk hole (25) is provided with a first spring (26) and abuts against the linkage plate (5).

4. The charging gun that is easy to unlock according to claim 2, characterized in that: A tightening bushing is provided at one end of the second shell (3), a top block (33) is provided at the other end of the second shell (3), a blind hole (34) is provided in the second shell (3), a guide column (35) is provided at the top of the second shell (3), the guide column (35) is provided with a second spring (36) and abuts against the button (6).

5. The charging gun that is easy to unlock according to claim 3, characterized in that: The first micro switch (21) is installed and fixed in the first housing (2) and abuts against the support rod (22).

6. The charging gun that is easy to unlock according to claim 4, characterized in that: The electromagnet (31) is arranged in the second housing (3) and abuts against the top block (33); the moving iron core of the electromagnet (31) passes through the tightening bushing.

7. The charging gun that is easy to unlock according to claim 4, characterized in that: The blind hole (34) is provided with a telescopic movable rod (8), the blind hole (34) is provided with a third spring (37) which acts on the movable rod (8), and the movable rod (8) is provided with a transmission arm (81) which is located on the movable track of the moving iron core of the electromagnet (31).

8. The charging gun that is easy to unlock according to claim 7, characterized in that: The emergency button (4) is provided with a contact surface (41) and contacts the movable rod (8).

9. The charging gun that is easy to unlock according to claim 3, characterized in that: A threading block (9) is provided in the gun body (1) and the first shell (2). The threading block (9) is provided with a plurality of threading holes (91) for the wires to pass through and is retracted inwardly. The threading holes (91) of the threading block (9) of the first shell (2) overlap with the perforations (24).

Images