Vehicle-mounted USB charging box

Abstract

The utility model discloses a vehicle-mounted USB charging box, which comprises a charging box main body, a bidirectional clamping mechanism and a placement support member, the bidirectional clamping mechanism and the placement support member are mounted on two opposite sides of the charging box main body, the bidirectional clamping mechanism comprises a locking adjusting block, an elastic piece and a guide clamping member, and one side of the charging box main body is provided with a first mounting groove. The locking adjusting block is adjustably mounted on one side of the first mounting groove, the other side of the first mounting groove is provided with an isolation plate perpendicular to the locking adjusting block, the guide clamping components are movably arranged on the two symmetrical sides of the isolation plate, the elastic pieces are arranged between the guide clamping components and the isolation plate, and the locking adjusting block is used for controlling locking and unlocking of the guide clamping components. The charging box main body is also provided with a heat dissipation ventilation cavity. According to the utility model, by introducing the bidirectional clamping mechanism, the placement supporting member and the heat dissipation ventilation cavity, the installation flexibility and the heat dissipation effect of the charging box are improved, and the placement and watching use requirements of a user on a portable electronic product during charging are met.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted auxiliary equipment, in particular to a vehicle-mounted USB charging box. Background Art

[0002] In the era of rapidly advancing automotive electronics, in-vehicle charging equipment has become an indispensable aid for drivers' daily travel. With the widespread adoption of portable electronic devices such as smartphones and tablets, the demand for in-vehicle charging is growing. Especially for long-distance driving or family outings, how to efficiently and conveniently charge these devices while ensuring driving safety has become a pressing issue.

[0003] Although there are many types of car charging boxes on the market, most of them use the traditional cigarette lighter interface for power supply and are directly fixed in a certain position in the car, such as near the center console. Although this method can meet basic charging needs, it has obvious limitations. On the one hand, the fixed position design limits the flexibility of charging, and it is difficult to adjust the position according to the specific needs of passengers. It is especially inconvenient when the rear passengers need to charge. Moreover, there is a lack of structure to place portable electronic devices while charging, which makes it difficult to meet the needs of passengers to watch and use while charging. On the other hand, traditional car charging boxes often lack effective heat dissipation design, which can easily lead to overheating after long-term use, affecting charging efficiency and service life, and even posing a safety hazard. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies in the existing technology, and its main purpose is to provide a vehicle-mounted USB charging box, which solves the technical problems of traditional vehicle-mounted charging boxes, such as insufficient installation flexibility, poor heat dissipation effect, and lack of a convenient support structure for placing electronic products.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a vehicle-mounted USB charging box, comprising:

[0007] A charging box body, wherein a first mounting groove is formed on one side of the charging box body, and a second mounting groove is formed on a side of the charging box body away from the first mounting groove;

[0008] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod having a check valve in said linking rod and a check valve in said linking rod.

[0009] A supporting member is placed and movably installed on the second mounting slot. A heat dissipation ventilation cavity is further provided at one end of the charging box body close to the first mounting slot. Heat dissipation fins are provided in the heat dissipation ventilation cavity. A plurality of heat dissipation ventilation slots are provided on the side of the heat dissipation ventilation cavity away from the second mounting slot. The heat dissipation ventilation slots extend to the outside of the charging box body.

[0010] As a preferred solution, the charging box body is provided with a power interface at one end close to the first mounting groove, and a charging interface at the other end. The placement support member is rotatably connected to the charging box body at one end close to the power interface, and an operating arc groove is provided at the other end. The placement support member is also provided with a placement groove on the side close to the second mounting groove.

[0011] As a preferred solution, second elastic tooth parts are installed at both ends of the locking adjustment block, and the second elastic tooth parts are used to adjust the longitudinal position of the locking adjustment block in the first installation groove relative to the guide clamping member. Second adjustment tooth grooves corresponding to the second elastic tooth parts are provided on the opposite side walls of the first installation groove, and a first unlocking protrusion is also installed on the second elastic tooth part. First avoidance grooves corresponding to the first unlocking protrusion are provided on the opposite side walls of the first installation groove, and the first unlocking protrusion can drive the locking adjustment block to move back and forth along the length direction of the first avoidance groove.

[0012] As a preferred solution, a first avoidance groove is provided at both lateral ends of the locking adjustment block, the second elastic tooth part is arranged on the first avoidance groove, the second elastic tooth part includes a second elastic arm and a second tooth hook, the second tooth hook is installed on one end of the second elastic arm, the other end of the second elastic arm is fixedly connected to the locking adjustment block, and the second tooth hook is set with a gap between the locking adjustment block and the second tooth hook.

[0013] As a preferred solution, a pressing plate is protruding from the side of the guide clamping member away from the isolation plate, and second avoidance grooves corresponding to the pressing plate are opened on the opposite side walls of the first mounting groove, and one end of the pressing plate passes through the second avoidance groove and extends to the outside of the charging box body.

[0014] As a preferred solution, a first clamping jaw is rotatably installed on the side where the two guide clamping members are close to each other, and a first accommodating groove corresponding to the first clamping jaw is provided on the guide clamping member. A second clamping jaw is rotatably installed on the side where the two guide clamping members are away from each other, and a second accommodating groove corresponding to the second clamping jaw is provided on the guide clamping member.

[0015] As a preferred solution, the clamping ends of the first clamping jaw and the second clamping jaw are both provided with an elastic rubber pad layer, and the outer surface of the elastic rubber pad layer is provided with rough texture.

[0016] As a preferred solution, a guide protrusion is further provided on a side of the guide clamping member away from the locking adjustment block, and a guide sliding groove adapted to the guide protrusion is formed on a side wall of the first mounting groove.

[0017] As a preferred solution, a second avoidance groove corresponding to the first elastic tooth part is provided on the guide clamping member, and the first elastic tooth part is arranged on the second avoidance groove. The first elastic tooth part includes a first elastic arm and a first tooth hook. The first tooth hook is installed on one end of the first elastic arm, and the other end of the first elastic arm is fixedly connected to the guide clamping member. The first tooth hook is set with a gap between it and the guide clamping member.

[0018] As a preferred solution, a control circuit board is further included, which is arranged in the charging box body, and the side of the heat dissipation fin away from the heat dissipation ventilation groove is in contact with the control circuit board.

[0019] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly improves the installation flexibility by designing a flexibly adjustable guide clamping component and a locking adjustment block, as well as a first adjustment groove and a second adjustment groove respectively matched therewith, so that the user can choose the installation method according to specific needs and adjust the position. Both the front and rear passengers of the vehicle can easily enjoy the convenient charging service. The setting of the support component not only provides a stable support platform for the portable electronic devices being charged, but also meets the needs of passengers watching and using while charging, further improving the user experience. At the same time, the design of the heat dissipation fins, heat dissipation ventilation slots and heat dissipation ventilation cavity effectively improves the heat dissipation effect of the vehicle-mounted USB charging box, reduces the risk of overheating during long-term use, thereby ensuring the charging efficiency and service life, and eliminating potential safety hazards.

[0020] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a vehicle-mounted USB charging box according to an embodiment of the present application;

[0022] Figure 2 This is a structural diagram of a vehicle-mounted USB charging box from another perspective of an embodiment of the present application;

[0023] Figure 3 This is a structural diagram of the vehicle-mounted USB charging box in the first working state of an embodiment of the present application;

[0024] Figure 4 2 is a schematic structural diagram of the vehicle-mounted USB charging box in the second working state of an embodiment of the present application;

[0025] Figure 5 This is a schematic diagram of the exploded structure of the vehicle-mounted USB charging box according to an embodiment of the present application;

[0026] Figure 6 This is a schematic diagram of the exploded structure of the vehicle-mounted USB charging box from another perspective of an embodiment of the present application;

[0027] Figure 7 This is an embodiment of the present application Figure 5 A enlarged view;

[0028] Figure 8 This is an embodiment of the present application Figure 6 Enlarged view of point B.

[0029] Description of reference numerals:

[0030] 10. Charging box body; 11. First mounting slot; 111. Second adjustment slot; 112. First avoidance slot; 113. Second avoidance slot; 114. Guide slot; 12. Second mounting slot; 13. Heat dissipation and ventilation cavity; 14. Heat dissipation fins; 15. Heat dissipation and ventilation slot; 16. Power port; 17. Charging port;

[0031] 20. Bidirectional clamping mechanism; 21. Locking adjustment block; 211. First adjustment tooth groove; 212. Second elastic latching member; 213. First unlocking protrusion; 214. First avoidance groove; 215. Second elastic arm; 216. Second tooth hook; 22. Elastic member; 23. Guide clamping member; 231. First elastic latching member; 232. First clamping jaw; 233. First accommodating groove; 234. Second clamping jaw; 235. Second accommodating groove; 236. Guide protrusion; 237. Second avoidance groove; 238. First elastic arm; 239. First tooth hook; 24. Isolation plate; 25. Guide support rod;

[0032] 30. Place the support member; 31. Operate the arc groove; 32. Place the groove;

[0033] 40. Elastic rubber cushion layer;

[0034] 50. Press plate. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0037] See also Figures 1 to 8 The present invention provides a vehicle-mounted USB charging box, comprising:

[0038] The charging box body 10 has a first mounting groove 11 on one side of the charging box body 10, and a second mounting groove 12 on the side of the charging box body 10 away from the first mounting groove 11. The design of the first mounting groove 11 and the second mounting groove 12 provides installation space for the installation of subsequent components.

[0039] The two-way clamping mechanism 20, as a key installation and adjustment component, can be adjustably installed on the first installation slot 11 to achieve a variety of stable clamping methods. The two-way clamping mechanism 20 includes a locking adjustment block 21, an elastic member 22 and a guide clamping member 23. The locking adjustment block 21 can be adjustably installed on one side of the first installation slot 11. An isolation plate 24 arranged vertically to the locking adjustment block 21 is installed in the middle of the other side of the first installation slot 11. Guide support rods 25 are fixedly installed on both sides of the isolation plate 24. The setting of the isolation plate 24 not only plays a structural separation role, but also serves as the installation basis of the guide support rod 25, thereby enhancing the stability of the overall structure. The guide clamping member 23 is sleeved and installed on the guide support rod 25. The two guide clamping members 23 can move in opposite directions along the guide support rod 25. This design can not only meet the clamping installation method of the guide clamping members 23 approaching each other, but also meet the clamping method of the guide clamping members 23 when they are away from each other. The installation method of installing in the gap significantly improves the installation flexibility and adaptability of the vehicle-mounted USB box. The elastic member 22 is arranged between the guide clamping member 23 and the isolation plate 24, and is sleeved and installed on the guide support rod 25, providing the necessary elastic force and reset ability for clamping, ensuring that two-way clamping can be normally achieved. The two guide clamping members 23 are each installed with a first elastic tooth member 231 on the side close to the locking adjustment block 21. The tooth directions of the two first elastic tooth members 231 are opposite. The locking adjustment block 21 is close to the isolation plate 24. Both ends are provided with first adjustment tooth grooves 211 that are adapted to the first elastic tooth member 231. The locking adjustment block 21 is used to control the locking and loosening of the guide clamping member 23. By adjusting the engaging relationship between the first elastic tooth member 231 and the first adjustment tooth groove 211, the guide clamping member 23 can be quickly fixed and released, meeting the needs of two-way clamping and significantly improving the adjustment flexibility.

[0040] A support member 30 is placed and movably installed on the second mounting slot 12. The support member 30 is placed to provide users with a convenient electronic product placement platform, supporting watching or using electronic devices while charging. A heat dissipation ventilation cavity 13 is also provided at one end of the charging box body 10 close to the first mounting slot 11. Heat dissipation fins 14 are provided in the heat dissipation ventilation cavity 13. This design effectively increases the heat dissipation area and improves the heat dissipation efficiency. A plurality of heat dissipation ventilation grooves 15 are provided on the side of the heat dissipation ventilation cavity 13 away from the second mounting slot 12. The heat dissipation ventilation grooves 15 pass through to the outside of the charging box body 10 to form an efficient air convection channel, which further ensures that the heat during charging can be dissipated in time and extends the service life of the vehicle-mounted USB charging box.

[0041] In particular, when the car USB charging box is clamped and installed at the car air-conditioning outlet, the heat dissipation ventilation slot 15 faces the car air-conditioning outlet, and the cold air flow can enter the heat dissipation ventilation cavity 13 through the heat dissipation ventilation slot 15 and flow out from both ends of the heat dissipation ventilation cavity 13, efficiently taking away the heat dissipated by the heat dissipation fins 14, further improving the heat dissipation efficiency.

[0042] In this example, see Figures 1 to 2 The charging box body 10 is provided with a power interface 16 at one end near the first mounting slot 11, and a charging interface 17 at the other end. The power interface 16 is convenient for connecting to the vehicle power supply, providing stable power input for the charging box, and ensuring the normal operation of the charging function. The charging interface 17 is convenient for users to connect charging devices to achieve a fast and convenient charging experience. The end of the placement support member 30 near the power interface 16 is rotatably connected to the charging box body 10. This design not only enables the placement support member 30 to flexibly rotate and adjust the angle to adapt to the different usage needs of the user, but also ensures the stability and durability of the connection. An operating arc groove 31 is provided at the other end of the placement support member 30. This humanized design makes it easy for users to rotate the placement support member 30 out of the second mounting slot 12, improves the user experience, and meets ergonomic requirements. The placement support member 30 is also provided with a placement groove 32 on the side near the second mounting slot 12, which can firmly place mobile phones, tablets and other electronic products, effectively preventing the device from slipping or shaking during charging, and protecting the safety of the device.

[0043] See also Figures 5 to 8 , second elastic tooth pieces 212 are installed at both ends of the locking adjustment block 21, and the second elastic tooth pieces 212 are used to adjust the longitudinal position of the locking adjustment block 21 in the first installation groove 11 relative to the guide clamping member 23, ensuring close cooperation and flexible adjustment with the guide clamping member 23, thereby meeting diverse fixing requirements. Second adjusting tooth grooves 111 corresponding to the second elastic tooth pieces 212 are opened on the opposite side walls of the first installation groove 11, which are tightly engaged with the second elastic tooth pieces 212, which not only provides reliable support for the stable positioning of the locking adjustment block 21, but also realizes the adjustment The precise steps during the process improve the accuracy and reliability of the adjustment. A first unlocking protrusion 213 is also installed on the second elastic tooth part 212. This design allows the user to apply force easily, and the locking adjustment block 21 can be unlocked and moved through simple operations, which improves the convenience of operation and user experience. First avoidance grooves 112 corresponding to the first unlocking protrusion 213 are provided on the opposite side walls of the first installation groove 11. The first unlocking protrusion 213 can drive the locking adjustment block 21 to move back and forth along the length direction of the first avoidance groove 112, ensuring a smooth and unobstructed adjustment process.

[0044] Furthermore, a first avoidance groove 214 is opened at both lateral ends of the locking adjustment block 21, and a second elastic tooth member 212 is arranged on the first avoidance groove 214. The second elastic tooth member 212 includes a second elastic arm 215 and a second tooth hook 216. The second tooth hook 216 is installed on one end of the second elastic arm 215, and the other end of the second elastic arm 215 is fixedly connected to the locking adjustment block 21. The second elastic arm 215 can be flexibly bent and reset, thereby providing the necessary elasticity and supporting force for the second tooth hook 216 during the adjustment process, ensuring accurate engagement with the second adjustment tooth groove 111 in the first installation groove 11, and realizing precise adjustment and locking of the position of the locking adjustment block 21. The second tooth hook 216 is set with a gap between it and the locking adjustment block. This design ensures that the second tooth hook 216 has sufficient activity space to realize locking and loosening operations with the second adjustment tooth groove 111.

[0045] A pressing plate 50 is protruding from the side of the guide clamping member 23 away from the isolation plate 24, and a second avoidance groove 113 corresponding to the pressing plate 50 is opened on the opposite side walls of the first mounting groove 11. One end of the pressing plate 50 passes through the second avoidance groove 113 and extends to the outside of the charging box body 10. The second avoidance groove 113 provides the necessary space and path for the movement of the pressing plate 50, so that the user can conveniently operate the guide clamping member 23 through the pressing plate 50, thereby improving user experience and operating efficiency.

[0046] See also Figure 3 and Figure 4 A first clamping jaw 232 is rotatably installed on the side where the two guide clamping members 23 are close to each other, and a first accommodating groove 233 corresponding to the first clamping jaw 232 is provided on the guide clamping member 23. A second clamping jaw 234 is rotatably installed on the side where the two guide clamping members 23 are away from each other, and a second accommodating groove 235 corresponding to the second clamping jaw 234 is provided on the guide clamping member 23. The design of the first accommodating groove 233 and the second accommodating groove 235 optimizes the spatial structure and makes the structure more compact.

[0047] It should be noted that the guide clamping member 23 has two working states. When in the first working state, the first clamping jaws 232 are close to each other to achieve a clamping operation. When in the second working state, the second clamping jaws 234 are away from each other to achieve a stretched and clamped installation at the gap.

[0048] The clamping ends of the first clamping jaw 232 and the second clamping jaw 234 are both provided with an elastic rubber pad layer 40, which effectively reduces the wear on the surface of the equipment during the clamping process. At the same time, the elastic properties of the elastic rubber pad layer 40 are utilized to adapt to the slight errors in the clamping process and improve the clamping stability. The outer surface of the elastic rubber pad layer 40 is provided with rough texture, which increases the friction between the clamping end and the installation location, further enhances the stability of the clamping, and prevents accidental slipping caused by unstable installation.

[0049] Furthermore, a guide protrusion 236 is provided on the side of the guide clamping member 23 away from the locking adjustment block 21, and a guide groove 114 adapted to the guide protrusion 236 is provided on the side wall of the first mounting groove 11, which effectively guides the sliding trajectory of the guide protrusion 236 and ensures the stability and accuracy of the guide clamping member 23 during the movement.

[0050] The guide clamping member 23 is provided with a second avoidance groove 237 corresponding to the first elastic tooth member 231. The first elastic tooth member 231 is arranged on the second avoidance groove 237. The second avoidance groove 237 provides the necessary space for the installation and operation of the first elastic tooth member 231, ensuring the normal function of the tooth. The first elastic tooth member 231 includes a first elastic arm 238 and a first tooth hook 239. The first tooth hook 239 is installed on one end of the first elastic arm 238, and the other end of the first elastic arm 238 is fixedly connected to the guide clamping member 23. The first tooth hook 239 and the guide clamping member 23 are set with a gap to ensure that there is sufficient operating space for engagement, locking and unlocking.

[0051] The vehicle-mounted USB charging box also includes a control circuit board, which is arranged in the charging box body 10. The heat dissipation fins 14 are in contact with the control circuit board on the side away from the heat dissipation ventilation grooves 15, effectively dissipating the heat generated by the control circuit board, avoiding performance degradation or damage due to overheating, and ensuring the long-term stable operation of the vehicle-mounted USB charging box.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A car-mounted USB charging box, characterized in that: include: A charging box body (10), wherein a first mounting groove (11) is provided on one side of the charging box body (10), and a second mounting groove (12) is provided on a side of the charging box body (10) away from the first mounting groove (11); A bidirectional clamping mechanism (20) is adjustably mounted on the first mounting groove (11), the bidirectional clamping mechanism (20) comprising a locking adjustment block (21), an elastic member (22) and a guide clamping member (23), the locking adjustment block (21) being adjustably mounted on one side of the first mounting groove (11), an isolation plate (24) vertically arranged to the locking adjustment block (21) being mounted in the middle of the other side of the first mounting groove (11), guide rods (25) being fixedly mounted on both sides of the isolation plate (24), the guide clamping member (23) being sleeved and mounted on the guide rods (25), and the two guide clamping members (23) being able to move along the guide rods (25). 5) Move in the opposite direction, the elastic member (22) is arranged between the guide clamping member (23) and the isolation plate (24), and is sleeved and installed on the guide support rod (25), and the two guide clamping members (23) are both installed with a first elastic tooth member (231) on one side close to the locking adjustment block (21), and the teeth of the two first elastic tooth members (231) are opposite, and the two ends of the locking adjustment block (21) on the side close to the isolation plate (24) are provided with first adjustment tooth grooves (211) adapted to the first elastic tooth member (231), and the locking adjustment block (21) is used to control the locking and loosening of the guide clamping member (23); A support member (30) is placed and movably mounted on the second mounting groove (12); a heat dissipation ventilation cavity (13) is further provided at one end of the charging box body (10) close to the first mounting groove (11); a heat dissipation ventilation cavity (13) is provided with a heat dissipation fin (14); a side of the heat dissipation ventilation cavity (13) away from the second mounting groove (12) is provided with a plurality of heat dissipation ventilation grooves (15); and the heat dissipation ventilation grooves (15) are extended to the outside of the charging box body (10).

2. The vehicle-mounted USB charging box according to claim 1, characterized in that: The charging box body (10) is provided with a power interface (16) at one end close to the first mounting groove (11), and a charging interface (17) at the other end; the placement support member (30) is rotatably connected to the charging box body (10) at one end close to the power interface (16), and is provided with an operating arc groove (31) at the other end; and the placement support member (30) is also provided with a placement groove (32) on one side close to the second mounting groove (12).

3. The vehicle-mounted USB charging box according to claim 1, characterized in that: A second elastic tooth piece (212) is installed at both ends of the locking adjustment block (21), and the second elastic tooth piece (212) is used to adjust the longitudinal position of the locking adjustment block (21) in the first installation groove (11) relative to the guide clamping member (23). Second adjustment tooth grooves (111) corresponding to the second elastic tooth piece (212) are provided on opposite side walls of the first installation groove (11). A first unlocking protrusion (213) is also installed on the second elastic tooth piece (212). First avoidance grooves (112) corresponding to the first unlocking protrusion (213) are provided on opposite side walls of the first installation groove (11). The first unlocking protrusion (213) can drive the locking adjustment block (21) to move back and forth along the length direction of the first avoidance groove (112).

4. The vehicle-mounted USB charging box according to claim 3, characterized in that: The locking adjustment block (21) is provided with first avoidance grooves (214) at both transverse ends, the second elastic toothed member (212) is arranged on the first avoidance grooves (214), the second elastic toothed member (212) comprises a second elastic arm (215) and a second toothed hook (216), the second toothed hook (216) is mounted on one end of the second elastic arm (215), the other end of the second elastic arm (215) is fixedly connected to the locking adjustment block (21), and the second toothed hook (216) is arranged with a gap between the locking adjustment block (21).

5. The vehicle-mounted USB charging box according to claim 1, characterized in that: A pressing plate (50) is protruded from one side of the guide clamping member (23) away from the isolation plate (24), and a second avoidance groove (113) corresponding to the pressing plate (50) is opened on the opposite side walls of the first mounting groove (11), and one end of the pressing plate (50) passes through the second avoidance groove (113) and extends to the outside of the charging box body (10).

6. The vehicle-mounted USB charging box according to claim 5, characterized in that: A first clamping jaw (232) is rotatably mounted on one side of the two guide clamping members (23) that are close to each other, and a first receiving groove (233) corresponding to the first clamping jaw (232) is provided on the guide clamping member (23); a second clamping jaw (234) is rotatably mounted on one side of the two guide clamping members (23) that are away from each other, and a second receiving groove (235) corresponding to the second clamping jaw (234) is provided on the guide clamping member (23).

7. The vehicle-mounted USB charging box according to claim 6, characterized in that: The clamping ends of the first clamping jaw (232) and the second clamping jaw (234) are both provided with an elastic rubber pad layer (40), and the outer surface of the elastic rubber pad layer (40) is provided with rough lines.

8. The vehicle-mounted USB charging box according to claim 1, characterized in that: A guide protrusion (236) is further provided on the side of the guide clamping member (23) away from the locking adjustment block (21), and a guide sliding groove (114) adapted to the guide protrusion (236) is provided on the side wall of the first mounting groove (11).

9. The vehicle-mounted USB charging box according to claim 1, characterized in that: The guide clamping member (23) is provided with a second avoidance groove (237) corresponding to the first elastic tooth member (231), and the first elastic tooth member (231) is arranged on the second avoidance groove (237). The first elastic tooth member (231) includes a first elastic arm (238) and a first tooth hook (239), and the first tooth hook (239) is installed on one end of the first elastic arm (238). The other end of the first elastic arm (238) is fixedly connected to the guide clamping member (23), and the first tooth hook (239) is set with a gap with the guide clamping member (23).

10. The vehicle-mounted USB charging box according to claim 1, characterized in that: It also includes a control circuit board, which is arranged in the charging box body (10), and the heat dissipation fin (14) is in contact with the control circuit board on a side away from the heat dissipation ventilation slot (15).

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