An electric vehicle charging connector

Abstract

The utility model discloses an electric automobile charging connector, include: connector main part, fixed ring, fixed seat and protective cover. The front side of connector main part is provided with the charging plug, and the rear side is provided with the handle. The fixed ring is fixed on the connector main part, and is located at the rear end of the charging plug, and a pair of lock grooves are carved on the fixed ring. The fixed seat is located at one side of the fixed ring close to the charging plug, and the end of the connector main part is inserted into the fixed seat, and the fixed seat is fixed with the clamping ring on one end close to the fixed ring. The protective cover is installed on the connector main part, and the both ends of the protective cover are respectively fixed with the connecting ring and the magnetic attraction ring, one side of the connecting ring close to the fixed ring is fixed with a pair of L-shaped lock jaws matched with the lock groove, and the lock catch assembly is installed in the fixed ring. The utility model discloses related structure design can be according to actual need, and the protective cover is taken down together with the connector main part at the same time, or the connector main part is taken down alone.

Description

Technical Field

[0001] This utility model belongs to the field of automotive charging technology, specifically relating to an electric vehicle charging connector. Background Technology

[0002] Electric vehicles are increasingly valued by car manufacturers due to their wide range of energy sources, quiet driving, and zero emissions, leading to the launch of numerous electric vehicles for home use. During the charging process, electric vehicles typically require a charging connector, or charging gun, which needs to be inserted into the charging port inside the vehicle to provide power.

[0003] In the prior art, CN201821679626.X discloses an automotive charging connector, including a connector body, a charging plug on one side of the connector body, a protective cover on the outer surface of the charging plug, a charging indicator mechanism on the front outer surface of the connector body, a display on one side of the outer surface of the charging indicator mechanism, a setting panel on the middle outer surface of the connector body, and a speaker on the other side of the outer surface of the connector body.

[0004] When used for extended periods, the protective cover is typically only needed to protect the charging connector in rainy or dewy weather. However, in actual use, the protective cover cannot be quickly removed from the charging connector. When using the connector in good weather, the protective cover remains fixed to the charging connector, which greatly affects the efficiency of inserting the connector into the electric vehicle during charging.

[0005] Therefore, in order to address the aforementioned technical problems, it is necessary to provide an electric vehicle charging connector.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide an electric vehicle charging connector that solves the problem that the protective cover on existing electric vehicle charging connectors cannot be quickly disassembled from the connector.

[0008] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0009] An electric vehicle charging connector includes: a connector body, a retaining ring, a retaining base, and a protective cover.

[0010] The connector body has a charging plug on the front and a handle on the rear. A retaining ring is fixed to the connector body and located at the rear end of the charging plug; the retaining ring has a pair of locking grooves. A retaining seat is located on the side of the retaining ring near the charging plug, and the end of the connector body is inserted into the retaining seat. A snap-fit ​​ring is fixed to the end of the retaining seat near the retaining ring. A protective cover is mounted on the connector body. A connecting ring and a magnetic ring are fixed to both ends of the protective cover. A pair of L-shaped locking claws that match the locking grooves are fixed to the side of the connecting ring near the retaining ring, and a locking assembly is installed inside the retaining ring. A pair of pins are fixed to the side of the connecting ring near the snap-fit ​​ring, and a pair of slots that match the pins are carved on the snap-fit ​​ring; a snap-fit ​​assembly is provided between the pins and the slots.

[0011] In one embodiment of this invention, the outer diameter of the protective cover gradually increases in a tapered shape from the connecting ring end to the magnetic ring end. This facilitates the magnetic attachment of one end of the magnetic ring to the vehicle body outside the charging port of the electric vehicle.

[0012] In one embodiment of this utility model, both the magnetic ring and the protective cover are flexible and deformable, thereby facilitating the magnetic ring's adaptive magnetic attraction to vehicle bodies with different shapes and contours, and the protective cover is made flexible to facilitate its extension.

[0013] In one embodiment of this utility model, the snap-fit ​​assembly includes two pairs of elastic members and two pairs of snap-fit ​​heads. The two pairs of elastic members are respectively fixed within a pair of pins. The two pairs of snap-fit ​​heads are respectively fixed to the ends of the two pairs of elastic members away from the connecting ring, and are engaged with the outer wall of the end of the snap-fit ​​ring away from the connecting ring. When a pair of pins are inserted into a pair of slots, the pair of snap-fit ​​heads are engaged with the outer wall of the end of the snap-fit ​​ring away from the connecting ring, thereby securing the connecting ring onto the snap-fit ​​ring, and thus securing the protective cover onto the outside of the fixing base.

[0014] In one embodiment of this utility model, grooves are carved into the outer walls of each pair of pins, and the two pairs of elastic elements are respectively installed in a pair of grooves. A pair of grooves are used for installing the two pairs of elastic elements therein.

[0015] In one embodiment of this utility model, both pairs of the locking heads are arranged in a triangular shape. Thus, when the connecting ring is locked onto the locking ring or removed from the locking ring, the locking heads slide on the side walls of the slot through the two triangular side walls, thereby pushing the elastic element to undergo elastic deformation outward, so that the locking heads pass through the slot.

[0016] In one embodiment of the present invention, both ends of the inner wall of the pair of slots are chiseled with beveled surfaces. The inclination angle of the beveled surfaces is adapted to the inclination angle of the side wall of the card head, thereby facilitating the connection ring to be engaged on the card ring, or to be removed from the card ring, so that the card head can slide along the beveled surface, thereby causing the elastic element to undergo elastic deformation.

[0017] In one embodiment of this utility model, the locking assembly includes: a locking ring, a rotating shaft, and a knob. The locking ring rotates within a fixed ring and has a pair of clearance grooves corresponding to L-shaped locking claws. The rotating shaft rotates on the fixed ring, and a gear is fixed to one end of the shaft near the locking ring. Gear grooves adapted to the gear are carved on the inner wall of the locking ring. The knob is fixed to the end of the rotating shaft away from the gear, and its top end is located outside the fixed ring.

[0018] When the L-shaped locking claw needs to be inserted into the locking groove, or when the protective cover does not need to be removed, the knob drives the rotating shaft to rotate. The rotating shaft, through gears and toothed grooves, drives the locking ring to rotate, aligning the clearance groove with the locking groove. When it is necessary to secure the fixing ring and the connecting ring, the locking ring is rotated, causing its side wall to rotate into the locking groove. The locking ring then engages with the L-shaped locking claw, thus securing the fixing ring and the connecting ring. At this point, the protective cover can be removed along with the connector body.

[0019] In one embodiment of this utility model, a limiting groove is chiseled on the outer wall of the locking ring, and a limiting block is fixed on the inner wall of the fixing ring. The limiting groove slides on the limiting block. By sliding the limiting groove on the limiting block, the rotation angle of the locking ring is limited. The two end sidewalls of the limiting groove are respectively attached to the two ends of the limiting block, corresponding to the positions where the clearance groove just rotates to coincide with the locking groove and the positions where the clearance groove just rotates away from the locking groove. The outer wall of the knob is provided with protective texture to prevent slippage when rotating the knob.

[0020] Compared with the prior art, the electric vehicle charging connector of this utility model, through relevant structural design, allows the protective cover to be removed at the same time as the connector body, or the connector body to be removed separately, according to actual needs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of an electric vehicle charging connector according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the connector body in one embodiment of the present invention;

[0024] Figure 3This is a schematic diagram of the structure of the fixing base and the protective cover in one embodiment of the present invention;

[0025] Figure 4 for Figure 3 Schematic diagram of the structure at point A;

[0026] Figure 5 This is a schematic diagram of the structure of the fixing base in one embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the connecting ring in one embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the fixing ring in one embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the locking ring in one embodiment of the present invention.

[0030] Explanation of key figure labels:

[0031] 1-Connector body, 101-Grip, 102-Charging plug, 103-Retaining ring, 104-Retaining base, 105-Snap-fit ​​ring, 106-Protective cover, 107-Connecting ring, 108-Magnetic ring, 109-Pin, 110-Slot, 111-Elastic element, 112-Clip head, 113-Beveled surface, 114-L-shaped locking claw, 115-Locking groove, 116-Locking ring, 117-Leaning groove, 118-Rotating shaft, 119-Gear, 120-Gear groove, 121-Knob, 122-Limiting block, 123-Limiting slide. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0033] like Figures 1 to 8 As shown, an electric vehicle charging connector according to one embodiment of the present invention includes: a connector body 1, a fixing ring 103, a fixing base 104, and a protective cover 106.

[0034] like Figures 1 to 8As shown, a charging plug 102 is provided on the front side of the connector body 1, and a handle 101 is provided on the rear side. A retaining ring 103 is fixed to the connector body 1 and is located at the rear end of the charging plug 102. A pair of locking grooves 115 are cut into the retaining ring 103. A retaining seat 104 is located on the side of the retaining ring 103 near the charging plug 102, and the end of the connector body 1 is inserted into the retaining seat 104. A snap-fit ​​ring 105 is fixed to the end of the retaining seat 104 near the retaining ring 103. The protective cover 106 is installed on the connector body 1. A connecting ring 107 and a magnetic ring 108 are fixed at both ends of the protective cover 106. A pair of L-shaped locking claws 114 that are adapted to the locking groove 115 are fixed on the side of the connecting ring 107 near the fixing ring 103. A locking assembly is installed inside the fixing ring 103. A pair of pins 109 are fixed on the side of the connecting ring 107 near the snap ring 105. A pair of slots 110 that are adapted to the pins 109 are drilled on the snap ring 105. A snap assembly is provided between the pins 109 and the slots 110.

[0035] The grip 101 is used to grasp the connector body 1, and the charging plug 102 is used to plug into the electric vehicle to charge it. The mounting base 104 needs to be fixed to the side wall of the charging pile. On the one hand, it is used for inserting the end of the connector body 1 into it when not charging, and on the other hand, it is used to hold the protective cover 106 in place when it is not needed. The magnetic ring 108 at one end of the protective cover 106 is used to magnetically attach the end of the protective cover 106 away from the fixing ring 103 to the side wall of the charging pile or the body of the electric vehicle. When the protective cover 106 does not need to be removed, the connecting ring 107 is inserted into a pair of slots 110 through a pair of pins 109 and is locked onto the locking ring 105 by a snap-fit ​​assembly, thereby locking the protective cover 106 to the outside of the mounting base 104. When the protective cover 106 needs to be removed, the connecting ring 107 is inserted into a pair of locking slots 115 by a pair of L-shaped locking claws 114, and the connecting ring 107 and the fixing ring 103 are locked together by the locking assembly. Then, when the connector body 1 is removed, the protective cover 106 can be removed together.

[0036] like Figures 1 to 8 As shown, the outer diameter of the protective cover 106 gradually tapers from one end of the connecting ring 107 towards the other end of the magnetic ring 108. This facilitates the magnetic attraction of one end of the magnetic ring 108 to the vehicle body outside the charging port. Both the magnetic ring 108 and the protective cover 106 are flexible and deformable, allowing the magnetic ring 108 to adapt to different vehicle body shapes, and the protective cover 106 is flexible to allow for extension.

[0037] like Figures 1 to 8As shown, the snap-fit ​​assembly includes two pairs of elastic members 111 and two pairs of snap heads 112. The two pairs of elastic members 111 are respectively fixed within a pair of pins 109. The two pairs of snap heads 112 are respectively fixed to the ends of the two pairs of elastic members 111 away from the connecting ring 107, and are engaged with the outer wall of the end of the snap-fit ​​ring 105 away from the connecting ring 107. When the pair of pins 109 are inserted into a pair of slots 110, the pair of snap heads 112 engage with the outer wall of the end of the snap-fit ​​ring 105 away from the connecting ring 107, thereby securing the connecting ring 107 onto the snap-fit ​​ring 105, and thus securing the protective cover 106 onto the outside of the fixing base 104.

[0038] like Figures 1 to 8 As shown, grooves are carved into the outer walls of each pair of pins 109, and two pairs of elastic elements 111 are respectively installed in a pair of grooves. A pair of grooves are used for the installation of the two pairs of elastic elements 111. Both pairs of locking heads 112 are triangular in shape, so that when the connecting ring 107 is engaged with or removed from the locking ring 105, it slides against the side walls of the slot 110 through the triangular side walls of the locking heads 112, thereby pushing the elastic elements 111 to elastically deform outward, thus allowing the locking heads 112 to pass through the slot 110.

[0039] like Figures 1 to 8 As shown, both ends of the inner wall of a pair of slots 110 are chiseled with inclined surfaces 113. The inclination angle of the inclined surface 113 is adapted to the inclination angle of the side wall of the locking head 112, thereby facilitating the locking of the connecting ring 107 onto the locking ring 105, or the sliding of the locking head 112 along the inclined surface 113 when the connecting ring 107 is removed from the locking ring 105, thereby causing the elastic element 111 to undergo elastic deformation.

[0040] like Figures 1 to 8 As shown, the locking assembly includes a locking ring 116, a rotating shaft 118, and a knob 121. The locking ring 116 rotates within a fixed ring 103 and has a pair of clearance grooves 117 corresponding to L-shaped locking claws 114. The rotating shaft 118 rotates on the fixed ring 103, and a gear 119 is fixed to one end of the shaft near the locking ring 116. A toothed groove 120, matching the gear 119, is carved on the inner wall of the locking ring 116. The knob 121 is fixed to the end of the rotating shaft 118 away from the gear 119, and its top end is located outside the fixed ring 103.

[0041] When the L-shaped locking claw 114 needs to be inserted into the locking groove 115, or when the protective cover 106 does not need to be removed, the knob 121 drives the rotating shaft 118 to rotate. The rotating shaft 118 drives the locking ring 116 to rotate through the gear 119 and the tooth groove 120, rotating the clearance groove 117 to a position that coincides with the locking groove 115. When it is necessary to fix the fixing ring 103 and the connecting ring 107, the locking ring 116 is rotated, causing the side wall of the locking ring 116 to rotate into the locking groove 115. The locking ring 116 is then locked onto the L-shaped locking claw 114, thereby fixing the fixing ring 103 and the connecting ring 107 together. At this time, when the connector body 1 is removed, the protective cover 106 can be removed together.

[0042] like Figures 1 to 8 As shown, a limiting groove 123 is carved on the outer wall of the locking ring 116, and a limiting block 122 is fixed on the inner wall of the fixing ring 103. The limiting groove 123 slides on the limiting block 122. By sliding the limiting groove 123 on the limiting block 122, the rotation angle of the locking ring 116 is limited. The two end sidewalls of the limiting groove 123 are respectively attached to the two end positions of the limiting block 122, corresponding to the positions where the clearance groove 117 just rotates to coincide with the locking groove 115 and the positions where the clearance groove 117 just rotates away from the locking groove 115. The outer wall of the knob 121 is provided with protective texture to prevent slippage when the knob 121 is rotated.

[0043] Working principle: When the protective cover 106 needs to be removed, first rotate the locking ring 116 to the position where a pair of clearance grooves 117 and a pair of locking grooves 115 coincide. Then, insert the end of the connector body 1 into the fixing base 104 and insert a pair of L-shaped locking claws 114 on one side of the connecting ring 107 into a pair of locking grooves 115. Then, drive the rotating shaft 118 to rotate through the knob 121. The rotating shaft 118 drives the locking ring 116 to rotate through the gear 119 and the tooth groove 120. The locking ring 116 rotates to the position where the clearance grooves 117 and the locking grooves 115 are offset from each other. The locking ring 116 is locked on the L-shaped locking claws 114, thereby fixing the fixing ring 103 and the connecting ring 107 together through the L-shaped locking claws 114.

[0044] Then, pull the connector body 1 outward using the handle 101. The connector body 1, through the fixing ring 103, drives the connecting ring 107 outward together. When the connecting ring 107 moves outward, it slides against the inclined surface 113 at one end of a pair of slots 110 via the side wall of the locking head 112. This pushes the elastic member 111 to undergo elastic deformation, causing the locking head 112 to slide outward from the slot 110. Then, pull the magnetic ring 108 off the side wall of the charging pile, and then insert the charging plug 102 into the electric vehicle, and magnetically attach the magnetic ring 108 to the outside of the charging port of the electric vehicle. This allows the protective cover 106 to protect the electric vehicle during charging.

[0045] When the protective cover 106 does not need to be removed, simply rotate the locking ring 116 to the position where a pair of clearance grooves 117 and a pair of locking grooves 115 coincide. When the connector body 1 is pulled outward, since the locking ring 116 does not lock the L-shaped locking claw 114, only the connector body 1 is pulled outward by itself, and the protective cover 106 is locked on the locking ring 105 by the connecting ring 107.

[0046] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electric vehicle charging connector, characterized in that, include: The connector body has a charging plug on the front and a handle on the rear. A retaining ring is fixed to the connector body and located at the rear end of the charging plug. A pair of locking grooves are cut into the retaining ring. A fixing base is located on the side of the fixing ring near the charging plug, and the end of the connector body is inserted into the fixing base. A retaining ring is fixed to the end of the fixing base near the fixing ring. A protective cover is installed on the connector body. A connecting ring and a magnetic ring are fixed at both ends of the protective cover. A pair of L-shaped locking claws that are adapted to the locking groove are fixed on the side of the connecting ring near the fixing ring. A locking assembly is installed inside the fixing ring. A pair of pins are fixed on the side of the connecting ring near the snap ring. A pair of slots that are adapted to the pins are drilled on the snap ring. A snap assembly is provided between the pins and the slots.

2. The electric vehicle charging connector according to claim 1, characterized in that, The outer diameter of the protective cover gradually increases in a tapered shape from the connecting ring end to the magnetic ring end.

3. The electric vehicle charging connector according to claim 2, characterized in that, Both the magnetic ring and the protective cover are flexible and deformable.

4. The electric vehicle charging connector according to claim 1, characterized in that, The snap-fit ​​assembly includes: Two pairs of elastic elements are fixed in a pair of pins respectively; and Two pairs of locking heads are fixed to the ends of the two pairs of elastic elements away from the connecting ring, and are locked onto the outer wall of the locking ring at the end away from the connecting ring.

5. An electric vehicle charging connector according to claim 4, characterized in that, Each pair of pins has a groove carved into its outer wall, and the two pairs of elastic elements are respectively installed in a pair of grooves.

6. An electric vehicle charging connector according to claim 5, characterized in that, Both pairs of card heads are arranged in a triangular shape.

7. An electric vehicle charging connector according to claim 6, characterized in that, Both ends of the inner wall of the pair of slots are chiseled with beveled surfaces.

8. An electric vehicle charging connector according to claim 1, characterized in that, The locking assembly includes: The locking ring rotates within the fixed ring and has a pair of clearance grooves corresponding to the L-shaped locking claws. A rotating shaft rotates on a fixed ring, and a gear is fixed at one end near the locking ring. The inner wall of the locking ring has grooves that match the gear. The knob is fixed to the end of the shaft away from the gear, and its top is located outside the retaining ring.

9. An electric vehicle charging connector according to claim 8, characterized in that, A limiting groove is chiseled on the outer wall of the locking ring, and a limiting block is fixed on the inner wall of the fixing ring. The limiting groove slides on the limiting block.

10. An electric vehicle charging connector according to claim 9, characterized in that, The outer wall of the knob is provided with protective texture.

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