A safe and reliable charger for electric bicycles

Abstract

The utility model relates to the technical field of chargers, and specifically to a safe and reliable electric bicycle charger, comprising a shell, a cover body and a connecting line; the cover body is floatingly arranged on the top of the shell body; a receiving cavity is formed between the shell body and the cover body; a charging module is arranged in the receiving cavity; the connecting line is connected to the receiving cavity; a conducting cavity connected to the receiving cavity is arranged in the connecting line; a first terminal is arranged in the conducting cavity; the charging module is provided with a conductive sleeve; a second terminal for contacting the first terminal is telescopically arranged in the conductive sleeve; and a linkage mechanism is arranged in the conductive sleeve. When the electric bicycle charger is stepped on and crushed, the cover body moves downward, and the downward movement of the cover body drives the second terminal to retract into the conductive sleeve through the linkage mechanism, so that the second terminal is separated from the first terminal, so that the electric bicycle charger loses voltage and stops working, effectively preventing short circuit and electric shock.

Description

Technical Field

[0001] The utility model relates to the technical field of chargers, in particular to a safe and reliable charger for electric bicycles. Background Art

[0002] An electric bicycle is a mechatronic personal transportation tool that uses batteries as auxiliary energy and is based on an ordinary bicycle and is equipped with a motor, controller, battery, handlebars and other operating components and a display instrument system. Electric bicycles have replaced bicycles in my country and become the most common means of transportation on the road. Therefore, electric bicycle chargers have also become a common device in most households.

[0003] However, current electric bicycle chargers are often exposed during charging, or even placed on the ground, making them extremely vulnerable to being stepped on and crushed. Once the outer shell is damaged during the crushing process, the risk of short circuit and electric shock is extremely high. Utility Model Content

[0004] The purpose of the utility model is to provide a safe and reliable electric bicycle charger in view of the above-mentioned deficiencies in the prior art.

[0005] The purpose of the utility model is achieved through the following technical solutions: A safe and reliable electric bicycle charger, comprising a shell, a cover and a connecting line; the cover is floatingly arranged on the top of the shell; an accommodating cavity is formed between the shell and the cover;

[0006] A charging module is provided in the accommodating cavity; the connecting line is connected to the accommodating cavity; a conducting cavity connected to the accommodating cavity is provided in the connecting line; a first terminal is provided in the conducting cavity;

[0007] The charging module is provided with a conductive sleeve; a second terminal for contacting the first terminal is telescopically provided inside the conductive sleeve; and a linkage mechanism is provided on the conductive sleeve;

[0008] When the cover moves downward, the cover drives the second terminal to retract into the conductive sleeve through the linkage mechanism, so that the second terminal is separated from the first terminal.

[0009] The utility model is further configured that the linkage mechanism includes a swing arm rotatably arranged on the conductive sleeve; one end of the swing arm is sleeved outside the second terminal; one end of the swing arm is matched with the second terminal profile;

[0010] A telescopic cavity is provided in the conductive sleeve; the second terminal is telescopically arranged in the telescopic cavity; a first reset spring is provided between the telescopic cavity and the second terminal.

[0011] The utility model is further configured that a fixing pin is provided in the telescopic cavity; and a spiral groove matched with the fixing pin is provided on the outer wall of the second terminal.

[0012] The utility model is further configured that the other end of the swing arm is movably and telescopically provided with a floating pin; the floating pin abuts against the inner side wall of the shell.

[0013] The utility model is further configured that a locking groove is provided at the bottom of the inner side wall of the shell.

[0014] The utility model is further configured as follows: a limit block is provided in the shell; a limit slot is provided in the limit block; a limit rod is provided at the bottom of the cover body; a second return spring is provided between the bottom of the limit rod and the bottom of the limit slot.

[0015] The utility model is further configured that a crushing portion is provided on the top of the limit block; and the crushing portion is provided with a plurality of grooves.

[0016] The utility model is further configured that the cover body is provided with a clearance groove matched with the swing arm.

[0017] The beneficial effects of the utility model are as follows: when the electric bicycle charger is trampled and crushed, the cover moves downward, and the cover moves downward to drive the second terminal to retract into the conductive sleeve through the linkage mechanism, so that the second terminal is separated from the first terminal, so that the electric bicycle charger loses voltage and stops working, effectively preventing short circuit and electric shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a structural diagram of the utility model after the cover is hidden;

[0021] Figure 3 It is a cross-sectional view of the utility model;

[0022] Figure 4 It is a partial cross-sectional view of the utility model when the first terminal is in contact with the second terminal;

[0023] Figure 5 It is a partial cross-sectional view of the utility model when the first terminal and the second terminal are separated;

[0024] Figure 6This is a structural exploded view of the charging module, the second terminal, the conductive sleeve and the swing arm of the utility model;

[0025] Among them: 1. Shell; 11. Limit block; 12. Limit groove; 13. Second reset spring; 14. Crushing part; 15. Slot; 2. Cover; 21. Limit rod; 22. Give way groove; 3. Accommodating cavity; 31. Locking groove; 4. Charging module; 5. Connecting wire; 51. Conducting cavity; 52. First terminal; 6. Conductive sleeve; 61. Telescopic cavity; 62. First reset spring; 63. Fixing pin; 7. Second terminal; 71. Spiral groove; 8. Swing arm; 81. Floating pin. DETAILED DESCRIPTION

[0026] The utility model is further described in conjunction with the following embodiments.

[0027] Depend on Figures 1 to 6 It can be seen that the safe and reliable electric bicycle charger described in this embodiment includes a housing 1, a cover 2 and a connecting line 5; the cover 2 is floatingly arranged on the top of the housing 1; an accommodating cavity 3 is formed between the housing 1 and the cover 2;

[0028] The accommodating chamber 3 is provided with a charging module 4; the connecting wire 5 is connected with the accommodating chamber 3; the connecting wire 5 is provided with a conducting chamber 51 connected with the accommodating chamber 3; the conducting chamber 51 is provided with a first terminal 52;

[0029] The charging module 4 is provided with a conductive sleeve 6; a second terminal 7 for contacting the first terminal 52 is telescopically provided inside the conductive sleeve 6; and a linkage mechanism is provided in the conductive sleeve 6;

[0030] When the cover body 2 moves downward, the cover body 2 drives the second terminal 7 to retract into the conductive sleeve 6 through the linkage mechanism, so that the second terminal 7 is separated from the first terminal 52 .

[0031] Specifically, in the safe and reliable electric bicycle charger described in this embodiment, when in normal use, the second terminal 7 extends out of the conductive sleeve 6 and protrudes into the conduction cavity 51 to contact the first terminal 52. At this time, the connecting wire 5, the first terminal 52, the second terminal 7, the conductive sleeve 6 and the charging module 4 are connected in sequence, so that the electric bicycle can be charged normally.

[0032] When the electric bicycle charger is stepped on and crushed, the cover body 2 moves downward, and the cover body 2 moves downward to drive the second terminal 7 to retract into the conductive sleeve 6 through the linkage mechanism, so that the second terminal 7 is separated from the first terminal 52, so that the electric bicycle charger loses voltage and stops working, effectively preventing short circuit and electric shock.

[0033] The embodiment of the invention is a safe and reliable electric bicycle charger, wherein the linkage mechanism comprises a swing arm 8 rotatably arranged on a conductive sleeve 6; one end of the swing arm 8 is sleeved outside a second terminal 7; one end of the swing arm 8 is matched with the second terminal 7;

[0034] A telescopic cavity 61 is provided in the conductive sleeve 6 ; the second terminal 7 is telescopically disposed in the telescopic cavity 61 ; a first return spring 62 is provided between the telescopic cavity 61 and the second terminal 7 .

[0035] In the safe and reliable electric bicycle charger described in this embodiment, a fixing pin 63 is provided in the telescopic cavity 61 ; and a spiral groove 71 cooperating with the fixing pin 63 is provided on the outer wall of the second terminal 7 .

[0036] Specifically, the safe and reliable electric bicycle charger described in this embodiment, as shown in the figure, when in normal use, the second terminal 7 extends out of the conductive sleeve 6 under the action of the first return spring 62, and the second terminal 7 protrudes into the conduction cavity 51 and contacts the first terminal 52. At this time, the other end of the swing arm 8 is located at the inner side wall against the top of the inner side wall and against the bottom of the cover body 2. The connecting line 5, the first terminal 52, the second terminal 7, the conductive sleeve 6 and the charging module 4 are connected in sequence, so that the electric bicycle can be charged normally;

[0037] When the electric bicycle charger is trampled and crushed, the cover body 2 moves downward, and the process of the cover body 2 moving downward presses the other end of the swing arm 8 to swing downward, thereby driving the second terminal 7 to rotate, and under the cooperation of the spiral groove 71 and the fixing pin 63, the second terminal 7 is retracted into the conductive sleeve 6, resulting in the second terminal 7 being separated from the first terminal 52, as shown in the figure, so that the electric bicycle charger loses voltage and stops working, effectively preventing short circuit and electric shock;

[0038] When the pressure applied to the cover 2 is released, the second return spring 13 and the first return spring 62 are reset, so that the second terminal 7 contacts the first terminal 52 again.

[0039] In the safe and reliable electric bicycle charger described in this embodiment, the other end of the swing arm 8 is movably and telescopically provided with a floating pin 81; the floating pin 81 abuts against the inner wall of the housing 1. Specifically, the above arrangement enables the floating pin 81 to abut against the inner wall, thereby enhancing the stability of the overall structure.

[0040] In the safe and reliable electric bicycle charger described in this embodiment, a locking groove 31 is provided at the bottom of the inner wall of the housing 1. In the safe and reliable electric bicycle charger described in this embodiment, a crushing portion 14 is provided at the top of the limit block 11; and the crushing portion 14 has a plurality of slots 15.

[0041] Specifically, when the pressure applied to the cover body 2 is too great, the electric bicycle charger has been damaged and cannot be used anymore. The cover body 2 is pressed down so that the broken part 14 breaks at the groove 15. The cover body 2 continues to be pressed down so that the floating pin 81 at the other end of the swing arm 8 enters into the locking groove 31. When the pressure applied to the cover body 2 is released, the floating pin 81 is clamped in the groove 15, the first return spring 62 and the second return spring 13 cannot be reset, and the first terminal 52 remains separated from the second terminal 7, thereby effectively preventing short circuits and electric shocks.

[0042] In the safe and reliable electric bicycle charger described in this embodiment, a limit block 11 is provided in the housing 1; a limit groove 12 is provided in the limit block 11; a limit rod 21 is provided at the bottom of the cover 2; a second reset spring 13 is provided between the bottom of the limit rod 21 and the bottom of the limit groove 12. Specifically, the above facilitates the cover 2 to float and reset.

[0043] In the safe and reliable electric bicycle charger described in this embodiment, the cover body 2 is provided with a clearance groove 22 that cooperates with the swing arm 8. Through the above arrangement, the swing arm 8 can be given a clearance so that the swing arm 8 can swing normally.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A safe and reliable electric bicycle charger, characterized by: It comprises a shell (1), a cover (2) and a connecting line (5); the cover (2) is floatingly arranged on the top of the shell (1); and an accommodating cavity (3) is formed between the shell (1) and the cover (2); The accommodating chamber (3) is provided with a charging module (4); the connecting wire (5) is in communication with the accommodating chamber (3); the connecting wire (5) is provided with a conducting chamber (51) in communication with the accommodating chamber (3); the conducting chamber (51) is provided with a first terminal (52); The charging module (4) is provided with a conductive sleeve (6); a second terminal (7) for contacting the first terminal (52) is telescopically provided inside the conductive sleeve (6); and a linkage mechanism is provided in the conductive sleeve (6); When the cover body (2) moves downward, the cover body (2) drives the second terminal (7) to retract into the conductive sleeve (6) through the linkage mechanism, so that the second terminal (7) is separated from the first terminal (52).

2. A safe and reliable electric bicycle charger according to claim 1, characterized in that: The linkage mechanism comprises a swing arm (8) rotatably arranged on the conductive sleeve (6); one end of the swing arm (8) is sleeved outside the second terminal (7); one end of the swing arm (8) is in profile fit with the second terminal (7); A telescopic cavity (61) is provided in the conductive sleeve (6); the second terminal (7) is telescopically arranged in the telescopic cavity (61); and a first return spring (62) is provided between the telescopic cavity (61) and the second terminal (7).

3. A safe and reliable electric bicycle charger according to claim 2, characterized in that: A fixing pin (63) is provided in the telescopic cavity (61); and a spiral groove (71) matching with the fixing pin (63) is provided on the outer wall of the second terminal (7).

4. A safe and reliable electric bicycle charger according to claim 2, characterized in that: The other end of the swing arm (8) is movably and telescopically provided with a floating pin (81); the floating pin (81) abuts against the inner side wall of the housing (1).

5. A safe and reliable electric bicycle charger according to claim 4, characterized in that: A locking groove (31) is provided at the bottom of the inner side wall of the housing (1).

6. A safe and reliable electric bicycle charger according to claim 1, characterized in that: A limit block (11) is provided in the shell (1); a limit slot (12) is provided in the limit block (11); a limit rod (21) is provided at the bottom of the cover body (2); and a second return spring (13) is provided between the bottom of the limit rod (21) and the bottom of the limit slot (12).

7. A safe and reliable electric bicycle charger according to claim 6, characterized in that: A crushing portion (14) is provided on the top of the limiting block (11); the crushing portion (14) is provided with a plurality of slots (15).

8. A safe and reliable electric bicycle charger according to claim 2, characterized in that: The cover body (2) is provided with a clearance groove (22) that cooperates with the swing arm (8).

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