CN213959197U

CN213959197U - Contact pin, contact pin rapid disassembly structure and have contact pin rapid disassembly structure's rifle that charges

Info

Publication number: CN213959197U
Application number: CN202022632932.1U
Authority: CN
Inventors: 朱欢欢; 朱昊鹏; 田海军; 黄秋平
Original assignee: Kunshan Ruierda Intelligent Technology Co ltd; Jink Electronics Kunshan Co ltd
Current assignee: Kunshan Ruierda Intelligent Technology Co ltd; Jink Electronics Kunshan Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-08-13
Anticipated expiration: 2030-11-13

Abstract

The application relates to the technical field of charging guns and discloses a contact pin, a contact pin quick-release structure and a charging gun with the contact pin quick-release structure. The contact pin comprises a first contact pin end and a second contact pin end which are integrally arranged, and a plurality of steps are arranged between the first contact pin end and the second contact pin end. Contact pin rapid disassembly structure is including the plug bush that is used for connecting cable conductor and above-mentioned contact pin, and the plug bush includes cable connection end and the contact pin link end of an organic whole setting, and the contact pin link end has the contact pin hole that is used for the second contact pin end of grafting contact pin, and the cable connection end has the cable hole that is used for the cable conductor of pegging graft, and the plug bush is soft electric conductor structure, and the plug bush passes through the plug bush clamp plate and is connected with the rifle body, and the contact pin is connected with the rifle head. The application discloses contact pin, contact pin rapid disassembly structure and have contact pin rapid disassembly structure's rifle that charges change swiftly, and the cost of changing the part is lower, very big reduction charging system's operation cost for charging system safe and reliable's operation more.

Description

Contact pin, contact pin rapid disassembly structure and have contact pin rapid disassembly structure's rifle that charges

Technical Field

The application relates to the technical field of charging guns, in particular to a contact pin, a contact pin quick-release structure and a charging gun with the contact pin quick-release structure.

Background

The high-current direct-current charging gun in the existing market generally adopts the form that a cable wire and a contact pin in a gun head of the charging gun are directly crimped to connect the cable wire and the charging gun, but the contact pin in the gun head is easily abraded due to frequent plugging and unplugging of the charging gun. The conventional method for the fault is to replace the charging gun and the cable line, and the whole machine needs to be unsealed during replacement. Therefore, this is time-consuming manually, and the value of the material to be replaced is high, so that the operation cost of the charging system is high.

SUMMERY OF THE UTILITY MODEL

In order to improve the above-mentioned with trading the contact pin waste time and energy to and problem with high costs, this application provides a contact pin, contact pin rapid disassembly structure and have contact pin rapid disassembly structure's rifle that charges.

In one aspect, the present application provides a pin.

The contact pin, including integrative first contact pin end and the second contact pin end that sets up, first contact pin end is used for being connected with the electric automobile socket that charges, the second contact pin end be used for with cable conductor connection, first contact pin end with be equipped with a plurality of grades of step face between the second contact pin end.

Through adopting above-mentioned technical scheme, conveniently through realizing the quick disconnect of contact pin and cable conductor through contact pin rapid disassembly structure.

In some embodiments, a plurality of steps are included, the step surface having an outer diameter that decreases from the second pin end to the first pin end.

Through adopting above-mentioned technical scheme, improve the connection stability of contact pin, reduce the contact pin and rock or become flexible.

In a second aspect, the present application further provides a pin quick release structure.

Contact pin rapid disassembly structure, including the plug bush that is used for connecting cable conductor and above-mentioned contact pin, the plug bush includes integrative cable junction end and the contact pin link that sets up, the contact pin link has the contact pin hole that is used for pegging graft the second contact pin end of contact pin, the cable junction end has the cable hole that is used for pegging graft the cable conductor, the plug bush is soft conductor structure.

By adopting the technical scheme, the plug bush is in compression joint with the cable, and the contact pin is plugged with the plug bush, so that the contact pin and the cable can be quickly disconnected, the contact pin can be independently replaced, the replacement is quick, and the replacement part is low in cost.

In some embodiments, the pin hole is inserted with a plurality of wire springs and an inner sleeve, the inner sleeve is in a ring column shape, the wire springs are circumferentially arrayed and wrap the inside of the inner sleeve, two ends of the wire springs are clamped between the insert sleeve and the inner sleeve, the part of the wire springs located on the inner side of the inner sleeve is in an arc structure protruding towards the axial center direction of the inner sleeve, and the diameter of the smallest circle surrounded by the wire springs is smaller than that of the second pin end of the pin.

Through adopting above-mentioned technical scheme, improved being connected and electrically conductive stability of contact pin and plug bush quality testing, effectively prevented the pine of contact pin and plug bush from taking off.

In some embodiments, a ferrule holder is further included, the ferrule holder including a holder sleeve bore that mates with the cable connection end.

In some embodiments, the plug socket further comprises a plug socket partition plate, the plug socket partition plate comprises a partition plate trepan boring matched with the plug pin connecting end, a plug pin through hole matched with the plug pin is concentrically formed at the partition plate trepan boring, and the plug pin through hole and the partition plate trepan boring are in a step shape.

Through adopting above-mentioned technical scheme, realized being connected with dismantling of rifle head of plug bush, the maintenance of the plug bush of being convenient for has reduced rocking of plug bush and contact pin simultaneously, has improved the connection stability of plug bush and contact pin.

In a third aspect, a charging gun with a pin quick release structure is disclosed.

The charging gun with the contact pin quick-release structure comprises a gun body and a gun head connected to the end part of the gun body, wherein the contact pin is installed between the gun body and the gun head, and the contact pin is installed between the gun body and the gun head through the contact pin quick-release structure.

In some embodiments, the gun head is provided with a second partition plate, the second partition plate is provided with a step hole matched with the step surface on the contact pin, the contact pin is inserted into the step hole and tightly abutted to the second partition plate, the plug bush partition plate is arranged on the contact pin through a contact pin through hole sleeve and tightly abutted to the second partition plate, the contact pin connecting end of the plug bush is inserted into the partition plate sleeve hole, and the plug bush pressure plate is pressed outside the plug bush through a pressure plate sleeve hole.

To sum up, the contact pin, contact pin rapid disassembly structure and have contact pin rapid disassembly structure's that this application provided rifle that charges includes following at least one useful technological effect:

1. carry on spacingly by the bolt fastening to the contact pin between contact pin clamp plate and the rifle head, the contact pin takes off the fixing bolt between rifle body and rifle head earlier when needing to be changed, take off the fixing bolt between contact pin clamp plate and rifle head after taking off the rifle head part, the contact pin that will need to be changed takes out the change from the plug bush, with contact pin clamp plate and rifle head locking with the bolt again after the change is accomplished, it can with rifle body locking rifle head and rifle body fixing bolt with the rifle head part of inserting back again, it is swift to change, the cost of change part is lower, very big reduction charging system's operation cost, make charging system safe and reliable's operation more.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a pin disclosed in the present application.

Fig. 2 is a schematic diagram illustrating an exploded structure of a charging gun with a pin quick-release structure according to the present disclosure.

Fig. 3 is a cross-sectional view of a sleeve in the quick release structure of the contact pin disclosed in the present application.

Fig. 4 is a cross-sectional view of a charging gun having a pin quick release structure as disclosed herein.

In the figure, 1, a gun body; 11. Inserting and pressing a sleeve; 12. a plug bush baffle; 121. a clapboard trepanning; 123. Inserting pin through holes; 111. sleeving a hole on the pressing plate; 2. A gun head; 201. a second separator; 2011. a stepped bore; 3. Inserting a pin; 31. a first pin end; 32. a second pin end; 33. A step surface; 4. inserting a sleeve; 41. a cable connection end; 42. a pin connecting end; 411. a cable hole; 421. a pin inserting hole; 422. a wire spring; 423. an inner sleeve; 43. a butting ring; 4231. a diameter reducing portion; 44. an expanding portion; 45. a protective cover ring; 46. a vent hole; 5. and (3) a cable.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The application firstly discloses a contact pin, which is used for a plug for conducting charging of an electric automobile, and as shown in fig. 1, the contact pin comprises a first contact pin end 31 and a second contact pin end 32 which are positioned at two ends, the first contact pin end 31 is used for being connected with a charging socket of the electric automobile, the second contact pin end 32 is used for being connected with a cable, at least two stages of step surfaces 33 are arranged between the first contact pin end 31 and the second contact pin end 32, and the outer diameter of the step surfaces 33 is gradually reduced from the second contact pin end 32 to the first contact pin end 31.

As shown in fig. 2, the application also discloses a pin quick release structure suitable for the pin, which is used for installing the pin in the gun body 1 and facilitating quick assembly and disassembly of the pin 3 and the cable 5 and the pin 3 and the gun head 2. Contact pin rapid disassembly structure is including plug bush 4 that is used for connecting cable conductor 5 and contact pin 3, plug bush 4 is the column body structure, cable connection end 41 and contact pin link 42 including integrative setting, contact pin link 42 has the contact pin hole 421 that is used for the second contact pin end 32 of grafting contact pin, cable connection end 41 has the cable hole 411 that is used for grafting cable conductor 5, cable hole 411 and contact pin hole 421 axle center coincidence, but not communicate with each other, the external diameter of cable connection end 41 is less than the external diameter of contact pin link 42, and plug bush 4 is soft conductor structure, therefore, when being connected with cable conductor 5, only need peg graft cable conductor 5 in cable hole 411, it can with the crimping of cable conductor 5 and cable connection end 41 to recycle pliers.

As shown in fig. 3, an inner sleeve 423 is inserted into the pin hole 421, the inner sleeve 423 is in interference fit with the pin hole 421, the inner sleeve 423 is in a cylindrical shape, the inner periphery of the inner sleeve 423 is circumferentially arrayed and covers the inner wire spring 422, the outer peripheral walls at the two ends of the inner sleeve 423 are further respectively provided with a diameter reducing portion 4231 for accommodating the wire spring 422, the two ends of the wire spring 422 are embedded in the diameter reducing portions 4231 and are clamped between the insertion sleeve 4 and the inner sleeve 423, so that the wire spring 422 is fixed and positioned, and meanwhile, the wire spring 422 is in interference fit with the pin hole 421 to prevent the wire spring 422 and the pin hole 421 from being loosened. The part of the wire spring 422 which is positioned at the inner side of the inner sleeve 423 is of an arc structure which protrudes towards the axial center direction of the inner sleeve 423, an included angle between the tangential direction of the arc surface of the wire spring 422 and the bus direction of the inner sleeve 423 is kept between 7 degrees and 11 degrees, the diameter of the smallest circle surrounded by the wire spring 422 is smaller than the diameter of the second pin end 32 of the pin 3, therefore, the wire spring 422 provides elastic force along the radial direction of the inner sleeve 423, when the second pin end 32 of the pin 3 is inserted into the inner sleeve 423, the two ends of the wire spring 422 provide elastic force to tightly abut against the circumferential surface of the pin 3, the connection tightness between the pin 3 and the inner sleeve 423 is ensured, and the wire spring 422 is prevented from deforming and losing efficacy after long-term use. And both ends of the wire spring 422 are fixed, and the wire spring is orderly arranged in the inner sleeve 423, so that disorder and winding are not easy to occur, and mutual interference is avoided.

A circle of diameter-expanded part 44 is formed on the inner periphery of one end port of the pin inserting hole 421 on the inserting sleeve 4, a protective cover ring 45 is fixedly embedded in the expanded part 44, the protective cover ring 45 completely covers the bent edge of the wire spring 422 at the end part of the inner sleeve 423, the protective cover ring 45 has a protective effect on the bent edge of the wire spring 422, the bent edge of the wire spring 422 is prevented from being impacted and deformed when the inserting pin 3 is inserted, and the bent edge of the wire spring 422 is prevented from being impacted and deformed.

As shown in fig. 2, the pin quick-release structure further includes a sleeve partition plate 12 for pressing the pin 3 onto the gun head 2, and a sleeve pressing plate 11 for pressing the sleeve 4 onto the gun head 2. The plug bush clapboard 12 comprises a plug pin through hole 123 matched with the plug pin 3, a clapboard trepanning hole 121 matched with the plug pin connecting end 42 is concentrically formed at the clapboard trepanning hole 121, and the plug pin through hole 123 and the clapboard trepanning hole 121 form a step shape; the press-fit plate 11 includes a press-fit plate hole 111 that mates with the cable connection end 41.

As shown in fig. 2 and 4, the application also discloses a charging gun with the contact pin quick-release structure, which comprises a gun body 1 and a gun head 2 connected to the end of the gun body 1, wherein the gun body 1 and the gun head 2 are connected in an inserting manner and fixed by bolts, and two contact pins 3 are arranged between the gun body 1 and the gun head 2 through the contact pin quick-release structure.

As shown in fig. 2 and 4, the lance body 1 and the lance head 2 are both cylindrical structures with openings at both ends, a second partition plate 201 is integrally formed in the lance head 2, and the second partition plate 201 partitions the lance head 2 at both ends. A step hole 2011 matched with the step surface 33 on the contact pin is formed in the second partition plate 201, the contact pin 3 is inserted into the step hole 2011 and is abutted against the second partition plate 201, the plug bush partition plate 12 is sleeved on the contact pin 3 and abutted against the second partition plate 201, and the plug bush partition plate 12 is fixedly connected with the second partition plate 201 through a bolt; the pin connecting end 42 of the plug bush 4 is plugged with the pin 3, and the pin connecting end 42 is abutted with the step surface of the pin through hole 123 in the plug bush partition plate 12 and the partition plate sleeve hole 121; the plug bush pressing plate 11 is sleeved on the cable connecting end 41 of the plug bush 4 and is abutted against the plug bush partition plate 12, and meanwhile, the outer wall of the plug bush pressing plate 11 and the gun head 2 are abutted against each other and are in interference fit.

The working principle is as follows: when the contact pin 3 needs to be replaced, the bolt between the gun body 1 and the gun head 2 is taken out to separate the gun body 1 and the gun head 2, then the plug bush pressing plate 11 is taken down from the gun head 2, the plug bush 4 and the contact pin 3 are separated, and the contact pin 3 can be replaced.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The contact pin is characterized by comprising a first contact pin end (31) and a second contact pin end (32) which are integrally arranged, wherein the first contact pin end (31) is used for being connected with a charging socket of an electric automobile, the second contact pin end (32) is used for being connected with a cable, and a plurality of step surfaces (33) are arranged between the first contact pin end (31) and the second contact pin end (32).

2. A pin according to claim 1, characterized by comprising a plurality of stages of the stepped surface (33), the stepped surface (33) having an outer diameter gradually decreasing from the second pin end (32) to the first pin end (31).

3. The contact pin quick-release structure is characterized by comprising a contact sleeve (4) used for connecting a cable (5) and a contact pin (3) of claim 1 or 2, wherein the contact sleeve (4) comprises a cable connecting end (41) and a contact pin connecting end (42) which are integrally arranged, the contact pin connecting end (42) is provided with a contact pin hole (421) used for plugging a second contact pin end (32) of the contact pin, the cable connecting end (41) is provided with a cable hole (411) used for plugging the cable (5), and the contact sleeve (4) is of a soft electric conductor structure.

4. A pin quick release structure according to claim 3, wherein a plurality of wire springs (422) and inner sleeves (423) are inserted into the pin holes (421), the inner sleeves (423) are in a cylindrical shape, the wire springs (422) are circumferentially arrayed and wrap the inner sleeves (423), two ends of the wire springs (422) are clamped between the pin sleeve (4) and the inner sleeves (423), a portion of the wire springs (422) located inside the inner sleeves (423) is in an arc structure protruding toward an axial direction of the inner sleeves (423), and a diameter of a smallest circle surrounded by the wire springs (422) is smaller than a diameter of the second pin ends (32) of the pins.

5. A pin quick release structure according to claim 3, further comprising a ferrule holding plate (11), wherein the ferrule holding plate (11) includes a holding plate trepan (111) engaged with the cable connection end (41).

6. A pin quick release structure according to claim 5, further comprising a sleeve partition plate (12), wherein the sleeve partition plate (12) comprises a partition plate sleeve hole (121) matched with the pin connecting end (42), a pin through hole (123) matched with the pin (3) is concentrically formed at the partition plate sleeve hole (121), and the pin through hole (123) and the partition plate sleeve hole (121) form a step shape.

7. The charging gun with the contact pin quick-release structure comprises a gun body (1) and a gun head (2) connected to the end part of the gun body (1), and is characterized in that the contact pin (3) of claim 1 or 2 is installed between the gun body (1) and the gun head (2), and the contact pin (3) is installed between the gun body (1) and the gun head (2) through the contact pin quick-release structure of claim 6.

8. The charging gun with the pin quick-release structure according to claim 7, wherein the gun head (2) is provided with a second partition plate (201), the second partition plate (201) is provided with a step hole (2011) matched with a step surface (33) on the pin, the pin (3) is inserted into the step hole (2011) and tightly abuts against the second partition plate (201), the plug bush partition plate (12) is sleeved on the pin (3) through a pin through hole (123) and tightly abuts against the second partition plate (201), a pin connecting end (42) of the plug bush (4) is inserted into the partition plate trepanning (121), and the plug bush pressure plate (11) is pressed out of the plug bush (4) through a pressure plate trepanning (111).