Adjustable terminal structure in charging gun

Abstract

An adjustable terminal structure inside a charging gun is arranged on a gun body of the charging gun and comprises a supporting seat, a wiring terminal, a connecting block and a wire fixing block. The supporting seat is detachably mounted in the accommodating cavity of the gun body; the head end of the wiring terminal is mounted on the supporting seat, and the tail end of the wiring terminal can be inserted into the charging interface of the gun body; the connecting block penetrates through the supporting seat and is rotatably connected with the head end of the wiring terminal, and the connecting block is electrically connected with the wiring terminal; the wire fixing block is installed on the connecting block and electrically connected with the connecting block, and the wire fixing block is used for being connected with a power supply cable located in the containing cavity; the angle position of the power supply cable can be adjusted by rotating the connecting block, and the power supply cable can supply power to the wiring terminal through the wire fixing block and the connecting block; during installation, the connection block is rotated to change the angle position of the power supply cable, so that the power supply cable avoids the inner wall of the accommodating cavity or the circuit element, and extrusion is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging guns, and particularly relates to an adjustable terminal structure inside a charging gun. Background Art

[0002] New energy vehicles have the advantages of low pollution, low energy consumption, low noise, etc., and are more and more widely used in life. Charging products such as charging guns used in conjunction with them have also developed rapidly. The charging guns on the market mainly consist of a gun body and a wiring terminal. A charging interface for plugging into a vehicle is provided on the gun body. The wiring terminal is installed inside the gun body and is electrically connected to a power supply cable, and the wiring terminal extends to the charging interface to supply power to the vehicle.

[0003] In the prior art, the wiring terminal and the power supply cable are connected and fixed by means of crimping or welding, etc., which makes the installation position of the power supply cable inside the gun body unable to be adjusted. Also, because various circuit components are installed inside the gun body, after the power supply cable with an unadjustable installation position is assembled, it is easy to be squeezed by the inner wall of the gun body or the circuit components arranged inside the gun body. Under the action of pressure, it may cause the solder joint between the power supply cable and the wiring terminal to fall off, and may also cause the gun body to crack or the circuit components to be damaged. Summary of the Utility Model

[0004] Technical Problem to be Solved

[0005] The utility model provides an adjustable terminal structure inside a charging gun, which can adjust the installation position of the power supply cable for avoidance to prevent extrusion.

[0006] Technical Solution

[0007] To achieve the above object, the utility model provides the following technical solution:

[0008] An adjustable terminal structure inside a charging gun is arranged on the gun body of the charging gun, and it includes a support seat, a wiring terminal, a coupling block and a wire fixing block. The support seat is detachably installed in the accommodation cavity of the gun body. The head end of the wiring terminal is installed on the support seat, and the tail end of the wiring terminal can be inserted into the charging interface of the gun body. The coupling block penetrates through the support seat and is rotatably connected to the head end of the wiring terminal, and the coupling block is electrically connected to the wiring terminal. The wire fixing block is installed on the coupling block and is electrically connected to the coupling block, and the wire fixing block is used for connecting the power supply cable located in the accommodation cavity. Rotating the coupling block can adjust the angular position of the power supply cable, and the power supply cable can supply power to the wiring terminal through the wire fixing block and the coupling block.

[0009] Preferably, the support seat is installed in the accommodation cavity by screws for easy disassembly.

[0010] Preferably, a rotating hole is provided at the head end of the terminal block, a rotating shaft is provided on the connecting block, the rotating shaft is rotatably connected to the rotating hole, and the outer wall of the rotating shaft contacts the inner wall of the rotating hole to achieve electrical connection.

[0011] Preferably, an insertion cavity with an outward opening is provided inside the terminal block, and an installation groove communicating with the rotating hole is opened on the bottom wall of the insertion cavity; the tail end of the rotating shaft extends into the installation groove, and a plug sleeve that abuts against the bottom wall of the installation groove is further provided at the tail end of the rotating shaft.

[0012] Preferably, a positioning strip is further included, the positioning strip is arranged in the insertion cavity, one end of the positioning strip is clamped to close the installation groove, and the other end of the positioning strip extends along the length direction of the insertion cavity.

[0013] Preferably, the rotating shaft and the rotating hole are in interference fit.

[0014] Preferably, a first locking bolt is threadedly connected to the terminal block, and one end of the first locking bolt can penetrate into the rotating hole and abut against the outer wall of the rotating shaft to fix the rotating shaft in the rotating hole.

[0015] Preferably, a guide groove is provided on the connecting block, a guide head is provided on the wire fixing block, the guide head is slidably connected to the guide groove, and the guide head contacts the inner wall of the guide groove to achieve electrical connection.

[0016] Preferably, the guide head and the guide groove are in interference fit.

[0017] Preferably, a sliding groove communicating with the guide groove is further provided on the connecting block, and the sliding groove is in the same length direction as the guide groove; a second locking bolt is slidably installed in the sliding groove, one end of the second locking bolt abuts against the connecting block, and the other end of the second locking bolt extends into the guide groove and is threadedly connected to the guide head.

[0018] Preferably, the terminal block, the connecting block and the wire fixing block are all made of copper material to improve the conductivity.

[0019] Beneficial effects

[0020] The adjustable terminal structure inside a charging gun provided by the present utility model, by designing a detachable support seat for installing the terminal block, facilitates the installation and disassembly of the terminal block in the gun body; by designing a connecting block for connecting the wire fixing block and the terminal block to make the power supply cable and the terminal block energized; and the rotational design of the connecting block can drive the wire fixing block to rotate to adjust the angular position of the power supply cable, so that while the power supply cable fully adapts to the internal space of the accommodation cavity, it can avoid squeezing objects such as the inner wall of the accommodation cavity or circuit components, solve problems such as solder joint detachment, gun body cracking or circuit component damage, improve the overall assembly stability, and extend the overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0022] Figure 1 shows the schematic diagram of the overall usage state of the present utility model Figure 1 ;

[0023] Figure 2 shows Figure 1 the front view of

[0024] Figure 3 shows Figure 2 the sectional view A-A of

[0025] Figure 4 shows Figure 3 the enlarged view at position A in

[0026] Figure 5 shows Figure 1 the exploded schematic diagram of

[0027] Figure 6 shows the schematic diagram of the internal structure of the charging gun of the present utility model

[0028] Figure 7 shows the schematic diagram of the adjustable terminal structure of the present utility model

[0029] Figure 8 shows the schematic diagram of the structure of a part of the present utility model Figure 1 ;

[0030] Figure 9 shows Figure 8 the sectional view of

[0031] Figure 10 shows Figure 8 the exploded schematic diagram of Figure 1 ;

[0032] Figure 11 shows Figure 8 the exploded schematic diagram of Figure 2 。

[0033] In the drawings: 1 gun body, 10 accommodation cavity, 11 charging interface, 12 power supply cable, 2 support base, 3 wiring terminal, 30 insertion cavity, 301 installation groove, 302 positioning strip, 31 rotation hole, 32 first locking bolt, 4 connection block, 41 rotating shaft, 411 insertion pin sleeve, 42 guide groove, 43 sliding groove, 44 second locking bolt, 5 wire fixing block, 51 guide head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without making creative efforts shall fall within the protection scope of the present application. It can be understood that the accompanying drawings are only for reference and illustration, and are not used to limit the present application. The connection relationships shown in the drawings are only for clear description and do not limit the connection methods.

[0035] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. It should also be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations. The terms used in the description of this application in this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0036] Refer to the attached Figure 1 - attached Figure 7 , an adjustable terminal structure inside a charging gun, which is arranged on the gun body 1 of the charging gun. It includes a support base 2, a wiring terminal 3, a connection block 4, and a wire fixing block 5; the support base 2 is detachably installed in the accommodation cavity 10 of the gun body 1; the head end of the wiring terminal 3 is installed on the support base 2, and the tail end of the wiring terminal 3 can be inserted into the charging interface 11 of the gun body 1; the connection block 4 penetrates through the support base 2 and is rotatably connected to the head end of the wiring terminal 3, and the connection block 4 is electrically connected to the wiring terminal 3; the wire fixing block 5 is installed on the connection block 4 and is electrically connected to the connection block 4, and the wire fixing block 5 is used to connect the power supply cable 12 located in the accommodation cavity 10; rotating the connection block 4 can adjust the angular position of the power supply cable 12, and the power supply cable 12 can supply power to the wiring terminal 3 through the wire fixing block 5 and the connection block 4.

[0037] Specifically, before installation, the support base 2 is located outside the accommodation cavity 10, while the wiring terminal 3, the connection block 4, and the wire fixing block 5 are all located at the support base 2, and the wire fixing block 5 is connected to the power supply cable 12;

[0038] During installation, first open the gun body 1 to expose the accommodation cavity 10, then install the support base 2 into the accommodation cavity 10 and insert the wiring terminal 3 into the charging interface 11. Next, judge the layout space of the accommodation cavity 10 and rotate the connection block 4 according to the specific situation, so that the connection block 4 drives the wire fixing block 5 to the corresponding position. During this process, the power supply cable 12 is displaced under the action of the wire fixing block 5 to perfectly adapt to the internal space of the accommodation cavity 10, and then smoothly avoid the inner wall of the accommodation cavity 10 and the circuit components installed in the accommodation cavity 10. In addition, if there is still extrusion after installing the power supply cable 12, the connection block 4 can be rotated continuously for adjustment.

[0039] In summary, the utility model designs a detachable support base 2 for installing the wiring terminal 3, which facilitates the installation and removal of the wiring terminal 3 in the gun body 1; designs a connection block 4 for connecting the wire fixing block 5 and the wiring terminal 3 to make the power supply cable 12 and the wiring terminal 3 energized; and the rotational design of the connection block 4 can drive the wire fixing block 5 to rotate to adjust the angular position of the power supply cable 12, so that the power supply cable 12 fully adapts to the internal space of the accommodation cavity 10 while avoiding squeezing objects such as the inner wall of the accommodation cavity 10 or circuit components, solving problems such as solder joint detachment, gun body 1 cracking or circuit component damage, improving the overall assembly stability, and extending the overall service life.

[0040] Refer to the appendix Figure 5 - appendix Figure 7 The support base 2 can be detachably fixed in the accommodation cavity 10 by means of snap connection, bonding, etc. Since there are various methods, the utility model does not limit this. For the convenience of understanding, in this embodiment, the support base 2 fits against the inner wall of the accommodation cavity 10 and is installed in the accommodation cavity 10 by screws for easy disassembly.

[0041] Refer to the appendix Figure 7 - appendix Figure 11 The first end of the wiring terminal 3 is provided with a rotating hole 31, and the connection block 4 is provided with a rotating shaft 41. The rotating shaft 41 is rotatably connected to the rotating hole 31, and the outer wall of the rotating shaft 41 contacts the inner wall of the rotating hole 31. Furthermore, while realizing the rotational connection between the connection block 4 and the first end of the wiring terminal 3, the electrical connection between the connection block 4 and the wiring terminal 3 is achieved. Compared with other design methods, this design is not only simple in structure, but also has a large contact surface between the rotating shaft 41 and the rotating hole 31, which can improve the power-on stability.

[0042] Refer to the appendix Figure 7 - appendix Figure 11 The wiring terminal 3 is internally provided with an insertion cavity 30 opening outwards, and an installation groove 301 communicating with the rotating hole 31 is opened on the bottom wall of the insertion cavity 30. The tail end of the rotating shaft 41 extends into the installation groove 301, and a plug sleeve 411 abutting against the bottom wall of the installation groove 301 is further provided at the tail end of the rotating shaft 41.

[0043] Specifically, when installing the connecting block 4, first insert the tail end of the rotating shaft 41 into the installation groove 301, then place the pin sleeve 411 in the installation groove 301 to sleeve the tail end of the rotating shaft 41, and ensure that the pin sleeve 411 reaches the bottom wall of the installation groove 301; the design of the pin sleeve 411 can facilitate the installation of the connecting block 4 and can prevent the connecting block 4 from detaching from the terminal 3.

[0044] Refer to the appendix Figure 9 - appendix Figure 10 In the present utility model, there is also a positioning strip 302. The positioning strip 302 is arranged in the insertion cavity 30, and one end of the positioning strip 302 is snap-connected to close the installation groove 301, while the other end of the positioning strip 302 extends along the length direction of the insertion cavity 30; on the one hand, the positioning strip 302 can be used to assist the charging interface 11 in plugging into the charging port on the vehicle, improving the plugging convenience of the charging gun, and on the other hand, it can also enclose the pin sleeve 411 in the installation groove 301.

[0045] Refer to the appendix Figure 5 - appendix Figure 11 Considering that during actual use, since the charging gun needs to be frequently moved, there is a possibility that the power supply cable 12 returns to its original state after the position is adjusted. Therefore, it is also necessary to make the connecting block 4 stop stably at the current position after rotation to prevent the power supply cable 12 from returning to its original state; to solve this problem, it is necessary to provide damping to the rotating shaft 41. There are many related methods, and the present utility model does not limit this. For the convenience of understanding, the following methods are exemplified in this embodiment:

[0046] Firstly, the rotating shaft 41 and the rotating hole 31 are designed to be in interference fit, and the friction between the rotating shaft 41 and the rotating hole 31 is relied on to provide damping. When the user rotates the connecting block 4, the applied force should be greater than the friction between the rotating shaft 41 and the rotating hole 31, and after rotating to the appropriate position, release the connecting block 4.

[0047] Secondly, a first locking bolt 32 is threadedly connected to the terminal 3. One end of the first locking bolt 32 can penetrate into the rotating hole 31 and press against the outer wall of the rotating shaft 41; when fixing the connecting block 4, tighten the first locking bolt 32 to fix the rotating shaft 41 in the rotating hole 31; when loosening the first locking bolt 32 to disengage from the outer wall of the rotating shaft 41, the restriction on the rotating shaft 41 can be released, facilitating the user to continue rotating the connecting block 4.

[0048] It should be noted that in the first method, after the terminal block 3 is installed on the charging interface 11, the user can rotate the connection block 4 in the receiving cavity 10 to adjust the position of the cable. The disadvantage is that after long-term use, the outer wall of the rotating shaft 41 is prone to wear and cannot normally contact the inner wall of the rotating hole 31. If the second method is adopted, since the first locking bolt 32 will be blocked after the terminal block 3 is installed on the charging interface 11, it is necessary to adjust the position of the connection block 4 in advance before installing the terminal block 3, which may cause a certain position deviation of the power supply cable 12 after installation.

[0049] Refer to the appendix Figure 7 - appendix Figure 11 In order to increase the adjustable range of the cable, in the present utility model, a guide groove 42 is provided on the connection block 4, and a guide head 51 is provided on the wire fixing block 5. The guide head 51 is slidably connected to the guide groove 42, and the guide head 51 contacts the inner wall of the guide groove 42 to achieve electrical connection.

[0050] Specifically, after rotating the connection block 4, moving the guide head 51 along the guide groove 42 can adjust the angular position and translational position of the wire fixing block 5, so that after assembly, the power supply cable 12 can deflect in multiple directions such as up, down, left, and right to more precisely avoid the inner wall of the receiving cavity 10 and the circuit elements installed in the receiving cavity 10.

[0051] Refer to the appendix Figure 7 - appendix Figure 11 Considering that during actual use, the power supply cable 12 after position adjustment may return to its original state, it is also necessary to make the wire fixing block 5 stay stably at the current position after movement to limit the power supply cable 12 from returning to its original state. To solve this problem, it is necessary to provide damping to the guide head 51. There are many related methods, and the present utility model does not limit this. For the convenience of understanding, the following methods are exemplified in this embodiment:

[0052] First, the guide head 51 and the guide groove 42 are in interference fit, and the friction between the guide head 51 and the guide groove 42 is relied on to provide damping. When the user moves the wire fixing block 5, the force applied should be greater than the friction between the guide head 51 and the guide groove 42, and then release the wire fixing block 5 after moving to the appropriate position.

[0053] Second, the connecting block 4 is further provided with a sliding groove 43 communicating with the guiding groove 42, and the sliding groove 43 is in the same length direction as the guiding groove 42; a second locking bolt 44 is slidably installed in the sliding groove 43, one end of the second locking bolt 44 abuts against the connecting block 4, and the other end of the second locking bolt 44 extends into the guiding groove 42 and is threadedly connected to the guiding head 51; when the second locking bolt 44 is screwed to disengage from the connecting block 4, the restriction on the guiding head 51 can be released, facilitating the user to move the wire fixing block 5 along the guiding groove 42. At the same time, the second locking bolt 44 also moves along the sliding groove 43; after the wire fixing block 5 moves to a suitable position, the second locking bolt 44 is screwed to abut against the connecting block 4, and the guiding head 51 can be fixed in the guiding groove 42 to restrict the movement of the wire fixing block 5.

[0054] It should be noted that, adopting the first method, after the support base 2 is installed in the receiving cavity 10, the user can move the wire fixing block 5 in the receiving cavity 10 to adjust the position of the cable. The disadvantage is that after long-term use, the guiding head 51 is prone to wear and cannot normally contact the inner wall of the guiding groove 42; if the second method is adopted, since the support base 2 will block the second locking bolt 44 after being installed in the receiving cavity 10, it is necessary to adjust the position of the wire fixing block 5 before installing the support base 2, which may cause a certain position deviation of the power supply cable 12 after installation.

[0055] Refer to the appendix Figure 7 - appendix Figure 11 , the terminal block 3, the connecting block 4 and the wire fixing block 5 are all made of materials with electrical conductivity. There are various types of relevant materials, which are not limited in this utility model. For the convenience of understanding, the terminal block 3, the connecting block 4 and the wire fixing block 5 in this embodiment are all made of copper materials to improve the electrical conductivity.

[0056] It should also be noted that although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application.

Claims

1. An adjustable terminal structure inside a charging gun, which is arranged on the gun body (1) of the charging gun, and is characterized in that, Comprising: A support base (2), which is detachably installed in the accommodation cavity (10) of the gun body (1); A terminal block (3), the head end of the terminal block (3) is installed on the support base (2), and the tail end of the terminal block (3) can be inserted into the charging interface (11) of the gun body (1); A coupling block (4), the coupling block (4) penetrates through the support base (2) and is rotatably connected to the head end of the terminal block (3), and the coupling block (4) is electrically connected to the terminal block (3); A wire fixing block (5), the wire fixing block (5) is installed on the coupling block (4) and is electrically connected to the coupling block (4), and the wire fixing block (5) is used to connect the power supply cable (12) located in the accommodation cavity (10); Wherein, rotating the coupling block (4) can adjust the angular position of the power supply cable (12), and the power supply cable (12) can supply power to the terminal block (3) through the wire fixing block (5) and the coupling block (4).

2. The adjustable terminal structure inside a charging gun according to claim 1, characterized in that, A rotating hole (31) is provided at the head end of the terminal block (3), a rotating shaft (41) is provided on the coupling block (4), the rotating shaft (41) is rotatably connected to the rotating hole (31), and the outer wall of the rotating shaft (41) contacts the inner wall of the rotating hole (31) to achieve electrical connection.

3. The adjustable terminal structure inside a charging gun according to claim 2, wherein, An insertion cavity (30) with an outward opening is provided inside the terminal block (3), and an installation groove (301) communicating with the rotating hole (31) is opened on the bottom wall of the insertion cavity (30); the tail end of the rotating shaft (41) extends into the installation groove (301), and a plug sleeve (411) abutting against the bottom wall of the installation groove (301) is further provided at the tail end of the rotating shaft (41).

4. The adjustable terminal structure inside a charging gun according to claim 3, wherein, A positioning strip (302) is further included, the positioning strip (302) is arranged in the insertion cavity (30), one end of the positioning strip (302) is clamped to close the installation groove (301), and the other end of the positioning strip (302) extends along the length direction of the insertion cavity (30).

5. The adjustable terminal structure inside a charging gun according to claim 2, characterized in that, The rotating shaft (41) and the rotating hole (31) are in interference fit.

6. The adjustable terminal structure inside a charging gun according to claim 2, characterized in that, A first locking bolt (32) is threadedly connected to the terminal block (3), one end of the first locking bolt (32) can penetrate into the rotating hole (31) and abut against the outer wall of the rotating shaft (41) to fix the rotating shaft (41) in the rotating hole (31).

7. The adjustable terminal structure inside a charging gun according to claim 1, characterized in that, A guide groove (42) is provided on the coupling block (4), a guide head (51) is provided on the wire fixing block (5), the guide head (51) is slidably connected to the guide groove (42), and the guide head (51) contacts the inner wall of the guide groove (42) to achieve electrical connection.

8. The adjustable terminal structure inside a charging gun according to claim 7, characterized in that, The guide head (51) and the guide groove (42) are in interference fit.

9. The adjustable terminal structure inside a charging gun according to claim 7, characterized in that, A sliding groove (43) communicating with the guide groove (42) is further provided on the coupling block (4), and the sliding groove (43) is in the same length direction as the guide groove (42); a second locking bolt (44) is slidably installed in the sliding groove (43), one end of the second locking bolt (44) abuts against the coupling block (4), and the other end of the second locking bolt (44) extends into the guide groove (42) and is threadedly connected to the guide head (51).

10. The adjustable terminal structure inside a charging gun according to claim 1, characterized in that, The terminal block (3), the connection block (4) and the wire fixing block (5) are all made of copper materials to improve the conductivity.

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