Charging gun with replaceable end

Abstract

The utility model relates to the technical field of charging equipment, in particular to a charging gun with a replaceable end, which comprises a charging gun body, a lead is mounted on the rear surface of the charging gun body, a charging needle head is mounted inside the front end of the charging gun body, and a screwing device is mounted on the outer side of the charging needle head and is used for rotationally connecting a charging end; the charging end is arranged at the front end of the rotary connection device and used for being connected with external charging equipment. The protective cover is movably installed outside the front end of the charging end and used for protecting the charging end. According to the charging gun with the replaceable end head, the clamping block arranged at the front end of the charging end head is inserted into the clamping groove and is buckled with the arc-shaped clamping strip in a staggered and rotating mode, the charging end head and the charging gun body are connected, meanwhile, the locking piece is clamped into the clamping groove, the charging end head cannot be separated from the connecting part, the charging end head is further provided with the protective cover, and the protective cover is arranged on the charging end head. And the protective cover is tightly attached to the charging end, so that external dust or rainwater is effectively prevented from being in contact with the charging end.

Description

Technical Field

[0001] The utility model relates to the technical field of charging equipment, in particular to a charging gun with a replaceable end. Background Art

[0002] A charging pile is a charging device that provides energy for electric vehicles. Its function is similar to that of a gas pump in a gas station. It can be fixed on the ground or on a wall and installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. It can charge various types of electric vehicles according to different voltage levels. These charging stations basically use charging guns to charge electric vehicles. However, due to their own shortcomings, the plug of the existing charging gun is prone to aging and damage.

[0003] In order to solve the deficiencies of the above-mentioned prior art, it was found through search that: the authorization announcement number CN106532339B discloses a charging gun with a replaceable plug and an assembly method thereof, including a charging gun body and a plug arranged at the end of the charging gun body, the plug having a charging interface that can be electrically connected to an external device to be charged, the charging gun body and the plug are connected in a detachable manner, that is, the charging gun body has a connection interface that matches the plug, a locking ring is arranged outside the connection interface, the plug is plugged and installed at the connection interface, and the plug is locked at the connection interface by rotating the locking ring, so that the plug cannot be detached from the connection interface.

[0004] Although this solution adopts a detachable assembly method between the charging gun body and the charging plug, when the plug is damaged, it only needs to be removed from the charging gun body and replaced with a new plug, without replacing the entire charging gun, which can greatly reduce the cost of using the charging gun and reduce waste. However, there is still a disadvantage: the locking ring installed in the annular groove interferes with the card block, and the locking ring is easily affected by external force, which causes the locking ring position to shift and the plug to lose its restriction, thereby causing the replaced new plug to fall off. Utility Model Content

[0005] The purpose of the utility model is to provide a charging gun with a replaceable terminal to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A charging gun with replaceable terminals comprises: a charging gun body, a wire is installed on the rear surface of the charging gun body, a charging needle is installed inside the front end of the charging gun body, a screw-on device is installed outside the charging needle for rotatably connecting the charging terminal; the charging terminal is arranged at the front end of the screw-on device for connecting an external charging device; and a protective cover, the protective cover is movably installed outside the front end of the charging terminal for protecting the charging terminal.

[0008] Preferably, the screw-on device is arranged at the front end of the charging gun body, including an annular body, an arc-shaped clamping strip arranged at the front end of the annular body, and a clamping slot. The annular body is nested inside the front end of the charging gun body. The arc-shaped clamping strip and the clamping slot are both located at the front end of the annular body and are movably connected to the charging terminal. A locking piece is arranged inside the arc-shaped clamping strip.

[0009] Preferably, a plurality of card blocks are arranged at the front end of the charging terminal, the shape of the card blocks corresponds to the shape of the card slot, and the charging terminal has a charging interface inside which can be electrically connected to an external device to be charged.

[0010] Preferably, the protective cover includes a connecting block and a fixing groove, the connecting block is fixedly installed on the inner upper surface of the protective cover, and a fixing groove is opened inside the connecting block, and a groove with a shape matching the connecting block is opened above the front end of the charging gun body, an opening and a connecting plate are provided above the groove, one end of the connecting plate passes through the opening and is fixedly connected to the limiting block, and a movable block is installed on the other end.

[0011] Preferably, the locking member includes an arc-shaped movable plate and a limit block arranged at the end of the arc-shaped movable plate, a slot is opened at the end of the arc-shaped movable plate, a fixed shaft is installed inside the slot, a sliding groove is arranged inside the limit block, the limit block is movably connected to the outside of the fixed shaft through the sliding groove, and a plurality of limit grooves are arranged at the end of the arc-shaped clamping strip.

[0012] Preferably, the charging circuit in the charging gun body is electrically connected to the charging needle; the charging interface is provided with a charging needle extending backward, and when the charging terminal is plugged and installed at the rotating device 3, the charging interface in the charging terminal is connected to the charging circuit in the charging gun body through the charging needle in the rotating device 3.

[0013] Preferably, the rotation path of the clamping block on the charging terminal is staggered with the position of the arc-shaped clamping strip.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model adopts a rotating card-jointed assembly method. When the charging terminal is damaged, it only needs to be removed from the charging gun body and replaced with a new terminal. There is no need to replace the entire charging gun, which greatly reduces the use cost of the charging gun and reduces waste.

[0016] 2. By setting the card block and the arc card strip to be rotatably connected and limiting the position through the locking piece, it is prevented that the card block and the arc card strip deviate due to external force, thereby causing the replaced new end to lose the limit and fall off.

[0017] 3. The utility model is provided with a protective cover, which fits tightly to the charging terminal in the charging gun body, effectively preventing external dust or rain from contacting the charging terminal, thereby avoiding damage to the charging terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model when the charging gun body and the port are separated;

[0020] Figure 3 It is a schematic diagram of the state when the clamping groove and the arc-shaped clamping strip in the rotary connection device of the utility model are connected;

[0021] Figure 4 It is a schematic diagram of the rotating state of the rotary connection device of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the protective cover in the utility model;

[0023] Figure 6 It is a schematic diagram of the utility model when the movable block and the limiting block are connected;

[0024] Figure 7 It is a structural schematic diagram of the connection block and the movable block in the utility model when they are connected;

[0025] Figure 8 This is a schematic diagram of the locking member structure in the utility model;

[0026] Fig. 9 It is a schematic diagram of the structure of the limiting position of the locking member in the utility model.

[0027] In the figure: 1. Charging gun body; 2. Wire; 3. Rotary connection device; 31. Card slot; 32. Arc-shaped card strip; 33. Ring-shaped body; 4. Charging terminal; 41. Card block; 42. Charging interface; 5. Protective cover; 51. Connecting block; 52. Fixed groove; 53. Groove; 54. Opening; 55. Connecting plate; 56. Limiting block; 57. Movable block; 6. Charging needle; 7. Locking piece; 71. Arc-shaped movable plate; 72. Limiting block; 73. Notch; 74. Fixed shaft; 75. Limiting groove; 76. Slide groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 9 , the utility model provides a technical solution:

[0030] A charging gun with replaceable terminals comprises: a charging gun body 1, a wire 2 is installed on the rear surface of the charging gun body 1, a charging needle 6 is installed inside the front end of the charging gun body 1, a screw-on device 3 is installed outside the charging needle 6 for rotatably connecting to a charging terminal 4; the charging terminal 4 is arranged at the front end of the screw-on device 3 for connecting to an external charging device; a protective cover 5, the protective cover 5 is movably installed outside the front end of the charging terminal 4 for protecting the charging terminal 4.

[0031] Specifically, the screw-on device 3 is arranged at the front end of the charging gun body 1, and includes an annular body 33, an arc-shaped clamping strip 32 arranged at the front end of the annular body 33, and a clamping groove 31. The annular body 33 is nested inside the front end of the charging gun body 1, and the arc-shaped clamping strip 32 and the clamping groove 31 are both located at the front end of the annular body 33 and are movably connected to the charging terminal 4. A locking piece 7 is arranged inside the arc-shaped clamping strip 32.

[0032] Specifically, a plurality of card blocks 41 are disposed at the front end of the charging terminal 4 , and the shape of the card blocks 41 corresponds to the shape of the card slot 31 . The charging terminal 4 has a charging interface 42 therein that can be electrically connected to an external device to be charged.

[0033] Specifically, the protective cover 5 includes a connecting block 51 and a fixing groove 52. The connecting block 51 is fixedly installed on the inner upper surface of the protective cover 5, and a fixing groove 52 is opened inside the connecting block 51. A groove 53 with a shape matching the connecting block 51 is opened above the front end of the charging gun body 1. An opening 54 and a connecting plate 55 are provided above the groove 53. One end of the connecting plate 55 passes through the opening 54 and is fixedly connected to the limiting block 56, and a movable block 57 is installed at the other end.

[0034] Specifically, the locking member 7 includes an arc-shaped movable plate 71 and a limit block 72 arranged at the end of the arc-shaped movable plate 71, a slot 73 is opened at the end of the arc-shaped movable plate 71, a fixed shaft 74 is installed inside the slot 73, a slide groove 76 is arranged inside the limit block 72, the limit block 72 is movably connected to the outside of the fixed shaft 74 through the slide groove 76, and a plurality of limit grooves 75 are arranged at the end of the arc-shaped clamping strip 32.

[0035] Specifically, the charging circuit in the charging gun body 1 is electrically connected to the charging needle 6; the charging interface 42 is provided with a charging needle 6 extending backward. When the charging terminal 4 is plugged and installed at the rotating device 3, the charging interface 42 in the charging terminal 4 is connected to the charging circuit in the charging gun body 1 through the charging needle 6 in the rotating device 3.

[0036] Specifically, the rotation path of the clamping block 41 on the charging terminal 4 is staggered with the position of the arc clamping strip 32.

[0037] In the utility model, a clamping block 41 provided at the front end of the charging terminal 4 is inserted into the clamping slot 31, and the charging terminal 4 is rotated to drive the clamping block 41 and the arc clamping strip 32 to rotate alternately. The clamping block 41 rotates to the clamping slot 31 below the arc clamping strip 32 and forms a clamping fit, thereby realizing the connection between the charging terminal 4 and the charging gun body 1. When the charging terminal 4 is damaged, only a new terminal needs to be replaced instead of the entire charging gun, which can effectively reduce the use cost of the charging gun.

[0038] In the present invention, when the charging terminal 4 is rotated and engaged into the groove 53 below the arc-shaped clamping strip 32, the arc-shaped movable plate 71 in the locking member 7 is pulled from the arc-shaped clamping strip 32 to the clamping groove 31, and the limiting block 72 is fixed in the limiting groove 75 at the same time, so as to achieve the limiting function, and prevent the clamping block 41 from being separated from the arc-shaped clamping strip 32 due to external force, so that the charging terminal 4 is separated from the rotating device 3.

[0039] In the utility model, by providing a protective cover 5 at the charging terminal 4, the user can cover the protective cover 5 on the front end of the charging gun body 1, insert the connecting block 51 into the groove 53, and insert the connecting plate 55 above the groove 53 into the fixing groove 52 from the opening 54, so as to fix the protective cover 5. The protective cover 5 fits tightly to the charging terminal 4 in the charging gun body 1, effectively preventing external dust or rain from contacting the charging terminal.

[0040] The working principle of this embodiment is as follows: When in use, the card block 41 provided at the front end of the charging port 4 is inserted into the card slot 31, and the charging terminal 4 is rotated to drive the card block 41 and the arc-shaped card strip 32 to rotate alternately. At this time, the card block 41 rotates to the card slot 31 below the arc-shaped card strip 32 and forms a card-engaged fit (see Figure 3-Figure 4), the connection between the charging terminal 4 and the charging gun body 1 is realized. In order to prevent the block 41 from being separated from the arc-shaped card strip 32 due to external force, the arc-shaped movable plate 71 in the locking member 7 is pulled from the arc-shaped card strip 32 to the card groove 31, and the limit block 72 is slidably connected to the limit groove 75 for fixation. Then the protective cover 5 is put on the front end of the charging gun body 1, and the connecting block 51 is inserted into the groove 53, and the connecting plate 55 above the groove 53 is inserted into the fixing groove 52 from the opening 54 to fix the protective cover 5. The protective cover 5 is tightly fitted to the charging terminal 4 in the charging gun body 1, so as to protect the charging terminal 4.

[0041] The remaining parts not described in this utility model are existing or known technologies.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A charging gun with a replaceable end, characterized in that: include: A charging gun body (1), wherein a wire (2) is installed on the rear surface of the charging gun body (1), a charging needle (6) is installed inside the front end of the charging gun body (1), and a rotating device (3) is installed on the outside of the charging needle (6) for rotatingly connecting to a charging terminal (4); The charging terminal (4) is arranged at the front end of the rotary connection device (3) and is used to connect to an external charging device; A protective cover (5) is movably mounted outside the front end of the charging terminal (4) and is used to protect the charging terminal (4).

2. A charging gun with replaceable terminal according to claim 1, characterized in that: The screw-on device (3) is arranged at the front end of the charging gun body (1), and comprises an annular body (33), an arc-shaped clamping strip (32) arranged at the front end of the annular body (33), and a clamping groove (31); the annular body (33) is nested inside the front end of the charging gun body (1); the arc-shaped clamping strip (32) and the clamping groove (31) are both located at the front end of the annular body (33) and are movably connected to the charging terminal (4); a locking piece (7) is arranged inside the arc-shaped clamping strip (32).

3. The charging gun with replaceable terminal according to claim 1, characterized in that: A plurality of card blocks (41) are arranged at the front end of the charging terminal (4), the shape of the card blocks (41) corresponds to the shape of the card slot (31), and the charging terminal (4) has a charging interface (42) inside that can be electrically connected to an external device to be charged.

4. The charging gun with replaceable terminal according to claim 1, characterized in that: The protective cover (5) comprises a connecting block (51) and a fixing groove (52); the connecting block (51) is fixedly mounted on the inner upper surface of the protective cover (5), and a fixing groove (52) is provided inside the connecting block (51); a groove (53) having a shape matching that of the connecting block (51) is provided above the front end of the charging gun body (1); an opening (54) and a connecting plate (55) are provided above the groove (53); one end of the connecting plate (55) passes through the opening (54) and is fixedly connected to the limiting block (56), and the other end is provided with a movable block (57).

5. The charging gun with replaceable terminal according to claim 2, characterized in that: The locking member (7) comprises an arc-shaped movable plate (71) and a limiting block (72) arranged at the end of the arc-shaped movable plate (71); a notch (73) is provided at the end of the arc-shaped movable plate (71); a fixed shaft (74) is installed inside the notch (73); a sliding groove (76) is provided inside the limiting block (72); the limiting block (72) is movably sleeved on the outside of the fixed shaft (74) through the sliding groove (76); and a plurality of limiting grooves (75) are provided at the end of the arc-shaped clamping strip (32).

6. The charging gun with replaceable terminal according to claim 3, characterized in that: The charging circuit in the charging gun body (1) is electrically connected to the charging needle (6); the charging interface (42) is provided with a charging needle (6) extending backwards, and when the charging terminal (4) is plugged and installed at the screw-on device (3), the charging interface (42) in the charging terminal (4) is connected to the charging circuit in the charging gun body (1) through the charging needle (6) in the screw-on device (3).

7. The charging gun with replaceable terminal according to claim 1, characterized in that: The rotation path of the clamping block (41) on the charging terminal (4) is interlaced with the position of the arc-shaped clamping strip (32).

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