Vehicle-mounted charger

Abstract

The utility model discloses a vehicle-mounted charger which comprises a charger body and a clamp unit detachably installed on the charger body, and the charger body comprises an insertion rod portion and a charging connection portion. The clamp unit comprises a mounting sleeve detachably mounted on the outer wall of the charging connecting part through a mounting mechanism, a pair of pressing arms which are arranged in a symmetrical state and of which the middle parts are mounted on the mounting sleeve through first hinge shafts, and a pair of pressing tools which are arranged in a symmetrical state and are fixedly mounted at the end parts, far away from the inserting rod part, of the corresponding pressing arms respectively; each first hinge shaft is provided with a first torsion spring used for pushing the pressing arms to rotate so that the pressing tool can press the end of the charging wire, the inner diameter of the mounting sleeve is larger than the outer diameter of the charging connecting part, and after the charging wire is inserted into the charging connecting part, the pair of pressing arms is loosened, the first torsion springs can push the pressing arms to rotate so that the pressing tool can press the end of the charging wire. And the pressing tool is driven to press the end part of the charging wire, so that loosening between the charging wire and the charging connecting part in the running process of the automobile is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field related to vehicle chargers, and in particular to a vehicle charger. Background Art

[0002] The car charger is an accessory designed to facilitate car owners to charge digital products anytime and anywhere with the car charger. This type of product generally has overload protection, short circuit protection, high voltage input protection, high temperature protection, and four safety protection functions to ensure safe use. The car charger can be used in the car as well as at home, realizing the three-in-one multifunctional use of car charging, direct charging, and USB charging. The car charger is an accessory designed to facilitate the use of the car power supply to charge digital products anytime and anywhere.

[0003] my country's utility model patent "On-board charger" with publication number CN220342062U discloses an on-board charger that can charge two load devices at the same time by setting two output ports, that is, the first output port can be connected to a load device, and the second output port can also be connected to a load device, thereby improving the charging efficiency. In addition, the first protocol control unit is connected to the first output port, and then the protocol conversion is performed on the first output port, thereby realizing the fast charging function; the second protocol control unit is connected to the second output port, and then the protocol conversion is performed on the second output port, thereby realizing the fast charging function.

[0004] However, the above patent still has the following shortcomings. When the car encounters an uneven road surface during driving, the car will be bumpy during driving. The USB interface itself will be worn out after multiple plugging and unplugging, resulting in reduced connection strength. In addition, the bumps during driving will cause the charging cable and the vehicle charging cable to loosen, resulting in poor guide contact or slow charging speed. Therefore, it is necessary to design a vehicle charger. Utility Model Content

[0005] In view of the above technical problems, the purpose of the utility model is to overcome the problem in the prior art that the bumps during driving may cause the charging cable and the on-board charger to become loose.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a vehicle charger, comprising: a charger body and a clamp unit detachably mounted on the charger body, the charger body comprising an insertion rod portion and a charging connection portion, the clamp unit comprising a mounting sleeve detachably mounted on the outer wall of the charging connection portion through a mounting mechanism, a pair of symmetrically arranged pressure arms and the middle portions of which are mounted on the mounting sleeves through a first hinge shaft, and a pair of symmetrically arranged pressure tools respectively fixedly mounted on the corresponding pressure arms away from the ends of the insertion rod portion, each first hinge shaft being mounted with a first torsion spring for pushing the pressure arm to rotate so that the pressure tool is pressed on the end of the charging cable, and the inner diameter of the mounting sleeve is larger than the outer diameter of the charging connection portion.

[0007] Preferably, the mounting mechanism comprises a plurality of mounting bolts which are all threadedly mounted on the mounting sleeve and whose ends can abut against the outer wall of the charging connection portion.

[0008] Preferably, a flange portion connected to the first hinge shaft protrudes from the outer wall of the mounting sleeve away from the insertion rod portion, and the pressure arm is provided with a limiting arm that can abut against the side of the flange portion away from the insertion rod portion.

[0009] Preferably, an anti-loosening unit is installed on the insertion rod portion, and at least one installation groove in the same length direction is recessed on the side wall of the insertion rod portion;

[0010] The anti-loosening unit includes at least one group of anti-loosening mechanisms installed in corresponding installation grooves and a threaded sleeve coaxially threadedly installed on the end of the insertion rod part close to the charging connection part and connected to the anti-loosening mechanism. Rotating the threaded sleeve can cause the anti-loosening mechanism to contact the inner wall of the socket.

[0011] Preferably, the anti-loosening mechanism comprises a guide bar which is parallel to the insertion rod portion and fixedly installed in the installation groove, a slide plate which is slidably connected to the guide bar in the same length direction, a connecting rod connected to one end of the slide plate close to the threaded sleeve, a second hinge shaft which is installed in the installation groove and is located on the side of the slide plate away from the threaded sleeve and whose length direction is perpendicular to the length direction of the guide bar, a rotating plate which is installed on the second hinge shaft on the side away from the threaded sleeve, and a second torsion spring which is installed on the second hinge shaft and is used to push the rotating plate to rotate in accordance with the installation groove;

[0012] The end of the connecting rod away from the slide is slidably connected to the threaded sleeve, and a first wedge-shaped portion is formed on the side of the slide away from the thread, and a second wedge-shaped portion is formed on the side of the rotating plate close to the threaded sleeve, which matches the first wedge-shaped portion and is located on the side of the first wedge-shaped portion away from the axis of the insertion rod portion.

[0013] Preferably, an annular groove of the same length is recessed on the side of the threaded sleeve away from the charging connection part, a limiting piece inserted into the annular groove is provided at the end of the connecting rod away from the slide plate, and a ring piece is coaxially installed on the threaded sleeve to partially cover the annular groove to limit the limiting piece in the annular groove.

[0014] Preferably, the rotating plate is recessed with a groove for inserting the end of the second torsion spring.

[0015] According to the above technical solution, the utility model provides a vehicle charger, which has the following beneficial effects when in use: first, after the charging cable is plugged into the charging connection part, the pair of pressing arms are loosened, and the first torsion spring pushes the pressing arm to rotate, driving the pressing tool to press the end of the charging cable to prevent the charging cable and the charging connection part from loosening during the driving of the car;

[0016] Secondly, because the inner diameter of the mounting sleeve is larger than the outer diameter of the charging connection portion, the clamp unit can be installed on charger bodies of different specifications, which is highly practical.

[0017] Other features and advantages of the utility model will be described in detail in the subsequent specific implementation mode; and the parts not involved in the utility model are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of a vehicle charger provided by the present invention;

[0020] Figure 2 It is a cross-sectional view of a vehicle charger provided by the present invention;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of a clamp unit of a vehicle charger provided by the present invention;

[0022] Figure 4 This is a car charger provided by this utility Figure 1 The enlarged schematic diagram of point B in the middle;

[0023] Figure 5 This is a car charger provided by this utility Figure 1 The enlarged schematic diagram of point A in the middle;

[0024] Figure 6 This is a car charger provided by this utility Figure 2 Enlarged schematic diagram of point C in the middle.

[0025] Description of Reference Numerals

[0026] 1. Insertion rod part; 2. Charging connection part; 3. Installation sleeve; 4. Pressing arm; 5. Pressing tool; 6. Installation bolt; 7. Flange part; 8. Limiting arm; 9. Installation groove; 10. Threaded sleeve; 11. Guide strip; 12. Slide plate; 13. Connecting rod; 14. Turn plate; 15. First wedge-shaped part; 16. Second wedge-shaped part; 17. Annular slide groove; 18. Limiting piece; 19. Ring piece. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0028] In the present utility model, unless otherwise stated, directional words such as "upper, lower, inside, outside" contained in a term merely represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0029] like Figure 1-6 As shown, a vehicle charger comprises: a charger body and a clamp unit detachably mounted on the charger body, the charger body comprising an insertion rod portion 1 and a charging connection portion 2, the clamp unit comprising a mounting sleeve 3 detachably mounted on the outer wall of the charging connection portion 2 by a mounting mechanism, a pair of pressure arms 4 symmetrically arranged and mounted on the mounting sleeve 3 at the middle through a first hinge shaft, and a pair of pressure tools 5 symmetrically arranged and respectively fixedly mounted on the corresponding pressure arms 4 away from the end of the insertion rod portion 1, each first hinge shaft is equipped with a first torsion spring for pushing the pressure arm 4 to rotate so that the pressure tool 5 is pressed on the end of the charging line, and the inner diameter of the mounting sleeve 3 is larger than the outer diameter of the charging connection portion 2.

[0030] The charger body is an existing mature technology, and the specific structure and working principle will not be elaborated in this article.

[0031] When the charging cable needs to be plugged into the charging connector 2, first pinch the ends of the pair of pressing arms 4 away from the pressing tool 5, so that the ends of the pair of pressing arms 4 away from the pressing tool 5 are close to each other, so that the distance between the pair of pressing tools 5 is increased, which is convenient for the operator to plug the charging cable into the charging connector 2, and then release the pair of pressing arms 4. The first torsion spring will push the pressing arm 4 to rotate, driving the pressing tool 5 to press on the end of the charging cable to prevent the charging cable and the charging connector 2 from loosening during the driving of the car.

[0032] Since the inner diameter of the mounting sleeve 3 is larger than the outer diameter of the charging connection portion 2 , the clamp unit can be installed on charger bodies of different specifications, and is highly practical.

[0033] The mounting mechanism includes a plurality of mounting bolts 6 which are all threadedly mounted on the mounting sleeve 3 and whose ends can abut against the outer wall of the charging connection part 2 .

[0034] When installing the mounting sleeve 3, first loosen the mounting bolt 6 so that the mounting bolt 6 moves away from the axis of the mounting sleeve 3. After the mounting sleeve 3 is mounted on the charging connector 2, rotate the mounting bolt 6 in the opposite direction so that the mounting bolt 6 contacts the outer wall of the charging connector 2, thereby fixing the mounting sleeve 3 on the charging connector 2.

[0035] A flange portion 7 connected to the first hinge shaft protrudes from the outer wall of the installation sleeve 3 away from the insertion rod portion 1, and a limiting arm 8 that can abut against the flange portion 7 on the side away from the insertion rod portion 1 is provided on the pressure arm 4.

[0036] The limiting arm 8 is used to limit the rotation range of the pressing arm 4. After the charging cable is pulled out from the charging connector 2, the first torsion spring will cause the pressing arm 4 to continue to rotate. If there is no limiting effect of the limiting arm 8, the pressing tool 5 will be pressed on the top of the charging connector 2. At this time, a pair of pressing arms 4 tend to be parallel, which is not conducive to the operator pinching a pair of pressing arms 4 away from the ends of the pressing tool 5.

[0037] The rod insertion part 1 is provided with an anti-loosening unit, and the side wall of the rod insertion part 1 is provided with at least one installation groove 9 in the same length direction;

[0038] The anti-loosening unit includes at least one set of anti-loosening mechanisms installed in corresponding installation grooves 9 and a threaded sleeve 10 coaxially threadedly installed on the end of the insertion rod 1 close to the charging connection part 2 and connected to the anti-loosening mechanism. Rotating the threaded sleeve 10 can cause the anti-loosening mechanism to contact the inner wall of the socket.

[0039] After the insertion rod 1 is inserted into the socket of the car, the threaded sleeve 10 is rotated to drive the anti-loosening mechanism to contact the inner wall of the socket, thereby preventing the charger body from loosening during the driving of the car.

[0040] The anti-loosening mechanism includes a guide bar 11 which is parallel to the insertion rod portion 1 and fixedly installed in the installation groove 9, a slide plate 12 which is slidably connected to the guide bar 11 in the same length direction, a connecting rod 13 which is connected to one end of the slide plate 12 close to the threaded sleeve 10, a second hinge shaft which is installed in the installation groove 9 and is located on the side of the slide plate 12 away from the threaded sleeve 10 and whose length direction is perpendicular to the length direction of the guide bar 11, a rotating plate 14 which is installed on the second hinge shaft on the side away from the threaded sleeve 10, and a second torsion spring which is installed on the second hinge shaft and is used to push the rotating plate 14 to rotate in close contact with the installation groove 9;

[0041] The end of the connecting rod 13 away from the slide plate 12 is slidably connected to the threaded sleeve 10, and a first wedge-shaped portion 15 is formed on the side of the slide plate 12 away from the thread, and a second wedge-shaped portion 16 matching the first wedge-shaped portion 15 and located on the side of the first wedge-shaped portion 15 away from the axis of the insertion rod portion 1 is formed on the side of the rotating plate 14 close to the threaded sleeve 10.

[0042] After the insertion rod part 1 is inserted into the socket of the car, the threaded sleeve 10 is rotated to push the slide plate 12 to slide on the guide strip 11 close to the second hinge axis through the connecting rod 13. The first wedge-shaped part 15 on the slide plate 12 will squeeze into between the second wedge-shaped part 16 and the bottom wall of the mounting groove 9, and will push the rotating plate 14 to rotate around the second hinge axis away from the axis of the insertion rod part 1, so that the rotating plate 14 contacts the inner wall of the socket, and the insertion rod part 1 is firmly fixed in the socket.

[0043] An annular groove 17 of the same length is recessed on one side of the threaded sleeve 10 away from the charging connection part 2, and a limiting member 18 inserted into the annular groove 17 is provided at the end of the connecting rod 13 away from the slide plate 12. A ring piece 19 is coaxially mounted on the threaded sleeve 10 and partially covers the annular groove 17 to limit the limiting member 18 in the annular groove 17.

[0044] When the threaded sleeve 10 is rotated, the limit piece 18 slides in the annular groove 17, and the thread will move along the axial direction, driving the slide plate 12 to slide through the connecting rod 13; when installing, the ring piece 19 is removed to facilitate the insertion of the limit piece 18 into the annular groove 17, and then the ring piece 19 is installed on the threaded sleeve 10.

[0045] The rotating plate 14 is provided with a groove for inserting the end of the second torsion spring.

[0046] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0048] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A vehicle charger, characterized in that: include: A charger body and a clamp unit detachably mounted on the charger body, the charger body comprising an insertion rod portion (1) and a charging connection portion (2), the clamp unit comprising a mounting sleeve (3) detachably mounted on the outer wall of the charging connection portion (2) via a mounting mechanism, a pair of pressure arms (4) symmetrically arranged and both of which are mounted on the mounting sleeve (3) at their middle portions via a first hinge shaft, and a pair of pressure tools (5) symmetrically arranged and respectively fixedly mounted on the ends of the corresponding pressure arms (4) away from the insertion rod portion (1), each first hinge shaft being mounted with a first torsion spring for pushing the pressure arm (4) to rotate so that the pressure tool (5) is pressed onto the end of the charging cable, and the inner diameter of the mounting sleeve (3) is larger than the outer diameter of the charging connection portion (2).

2. The vehicle charger according to claim 1, characterized in that: The mounting mechanism comprises a plurality of mounting bolts (6) which are all threadedly mounted on the mounting sleeve (3) and whose ends can abut against the outer wall of the charging connection part (2).

3. The vehicle charger according to claim 1, characterized in that: A flange portion (7) connected to the first hinge shaft protrudes from the outer wall of the mounting sleeve (3) away from the insertion rod portion (1), and a limiting arm (8) capable of abutting against the side of the flange portion (7) away from the insertion rod portion (1) is provided on the pressure arm (4).

4. The vehicle charger according to claim 1, characterized in that: An anti-loosening unit is installed on the rod insertion part (1), and at least one installation groove (9) having the same length direction is recessed on the side wall of the rod insertion part (1); The anti-loosening unit comprises at least one anti-loosening mechanism installed in a corresponding installation groove (9) and a threaded sleeve (10) coaxially threadedly installed on the end of the insertion rod part (1) close to the charging connection part (2) and connected to the anti-loosening mechanism, and the threaded sleeve (10) can be rotated to cause the anti-loosening mechanism to contact the inner wall of the insertion hole.

5. The vehicle charger according to claim 4, characterized in that: The anti-loosening mechanism comprises a guide bar (11) parallel to the rod insertion portion (1) and fixedly installed in the installation groove (9), a slide plate (12) slidably connected to the guide bar (11) in the same length direction, a connecting rod (13) connected to one end of the slide plate (12) close to the threaded sleeve (10), a second hinge shaft installed in the installation groove (9) and located on the side of the slide plate (12) away from the threaded sleeve (10) and with a length direction perpendicular to the length direction of the guide bar (11), a rotating plate (14) installed on the second hinge shaft on the side away from the threaded sleeve (10), and a second torsion spring installed on the second hinge shaft for pushing the rotating plate (14) to rotate in contact with the installation groove (9); The end of the connecting rod (13) away from the slide plate (12) is slidably connected to the threaded sleeve (10); a first wedge-shaped portion (15) is formed on the side of the slide plate (12) away from the thread; and a second wedge-shaped portion (16) matching the first wedge-shaped portion (15) and located on the side of the first wedge-shaped portion (15) away from the axis of the rod insertion portion (1) is formed on the side of the rotating plate (14) close to the threaded sleeve (10).

6. The vehicle charger according to claim 5, characterized in that: An annular groove (17) having the same length direction is recessed on the side of the threaded sleeve (10) away from the charging connection part (2); a limiting member (18) inserted into the annular groove (17) is provided at the end of the connecting rod (13) away from the slide plate (12); and a ring piece (19) partially covering the annular groove (17) is coaxially mounted on the threaded sleeve (10) to limit the limiting member (18) in the annular groove (17).

7. The vehicle charger according to claim 5, characterized in that: The rotating plate (14) is recessed with a groove for the end of the second torsion spring to be inserted into.

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