Switching power supply for electric vehicle

Abstract

The utility model discloses a switching power supply for an electric vehicle, which relates to the technical field of electric vehicle power supplies and comprises a battery holder, side frames fixedly arranged on two sides of the upper end of the battery holder, a pressing plate fixedly arranged at the tops of the side frames, a fixed shaft fixedly arranged in the middle of the side frames, and a reel sleeved on the fixed shaft. An electric vehicle outer plate is arranged in front of the battery holder, a placement groove is formed in the electric vehicle outer plate, the electric wire penetrates through the placement groove, a switch cavity is formed in the position, located on one side of the placement groove, of the electric vehicle outer plate, the switch cavity is provided with a through second clamping groove, and a limiting rod is installed in the second clamping groove through a second rotating shaft; clamping grooves in a circumferential array are formed in one side of the coiling drum, and limiting strips are fixedly arranged at the positions, located in the clamping grooves, of the limiting rods. The charging device is simple in structure, convenient to operate, high in practicability and suitable for popularization, the power line can be pulled out and extended, charging is facilitated, the switch mechanism is arranged, the power line is fixed when pulled out, and automatic winding can be achieved by turning on a switch.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle power supply technology, specifically relating to a switching power supply for electric vehicles. Background Technology

[0002] Electric bicycles, also known as "electric vehicles," are purely electric vehicles powered by a battery and driven by an electric motor. In recent years, they have become very popular in my country. When in use, the battery is charged via a charging cable, and the battery is connected to the vehicle's electrical system via wires and a plug to provide power, with the battery acting as the power source to drive the bicycle.

[0003] When charging, the plug is usually fixed to the vehicle body. Due to the increasing number of electric vehicles, the charging points will be full, which may result in the charger not being long enough, causing inconvenience in charging. Utility Model Content

[0004] The purpose of this utility model is to provide a switching power supply for electric vehicles. It has a simple structure, allows the power cord to be pulled out for easy charging, and is equipped with a switch mechanism that fixes the cord when it is pulled out and automatically retracts it when the switch is turned on. It is easy to operate, highly practical, and suitable for widespread application.

[0005] This utility model provides the following technical solution: a switching power supply for electric vehicles, including a battery holder, side frames fixedly provided on both sides of the upper end of the battery holder, a pressure plate fixedly provided on the top of the side frames, a fixed shaft fixedly provided in the middle of the side frames, a coiled drum sleeved on the fixed shaft, a spiral spring with a spiral cross-section fixed between the coiled drum and the fixed shaft, and an electric wire wound on the coiled drum, the electric wire being connected to the circuit of the battery holder;

[0006] The front of the battery holder is the outer panel of the tram. The outer panel of the tram has a recessed placement groove through which the wire passes. The outer panel of the tram has a switch cavity on one side of the placement groove. The switch cavity has a through first clamping groove on its outer side and a through second clamping groove on its inner side. The first clamping groove is equipped with a toggle button via a first rotating shaft. The second clamping groove is equipped with a limit rod via a second rotating shaft. One side of the reel has a circumferential array of slots. The limit rod is fixed with a limit strip at the slot. The limit rod and the toggle button are connected by a spring rocker mechanism.

[0007] Preferably, a hemispherical groove is fixedly provided in the placement groove, the wire passes through the center line of the hemispherical seat and is fixedly connected to the hemispherical seat, and the front end of the hemispherical seat is provided with a power connection port.

[0008] Preferably, the outer wall of the wire is slidably connected to the inner wall of the pressure plate.

[0009] Preferably, the portion of the toggle switch located on the other side of the first rotating shaft is a toggle bar, and the portion of the limiting rod located on the other side of the second rotating shaft is a rotating bar. The toggle bar and the rotating bar are in contact, and the upper and lower sides of the toggle bar and the rotating bar are slidably connected to the upper and lower side walls of the switch cavity. A support spring is fixedly provided on one side of the rotating bar.

[0010] The beneficial effects of this utility model are: simple structure, the power cord can be pulled out for easy charging, and a switch mechanism is provided to fix the cord when pulled out, and automatically rewind it when the switch is turned on. It is convenient to operate and highly practical, as detailed below:

[0011] (1) This utility model is equipped with a reel drum. When charging, the toggle switch is moved to one side, the hemispherical base is held, and the power interface is pulled out from the placement slot. During this process, the wire coiled on the reel drum is pulled out, and the reel drum rotates accordingly, tightening the internal spiral spring. When the toggle switch is released, the limit bar is reset and locked into the slot of the reel drum, and the reel drum cannot rotate. At this time, the pulled-out wire remains fixed. The extended part of the wire allows the charger to be inserted further away, and the user can hold the hemispherical base and the charger with both hands to plug and unplug, making the operation more convenient.

[0012] (2) This utility model is provided with a switch cavity. When the wire is being wound up or down, the toggle button is tossed to one side. Under the action of the first rotating shaft, the toggle bar presses down on the rotating bar towards the support spring. The limiting rod on the other side of the second rotating shaft where the rotating bar is located is lifted up, thereby separating the limiting bar from the slot. When the wire is not subjected to external force, the vortex spring resets and drives the winding drum to rotate, so that the wire can be automatically wound up. When the winding reaches the end, the hemispherical seat is pulled into the hemispherical groove. Its arc structure will not bump or block in the hemispherical groove. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is an overall schematic diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is an enlarged view of point A of this utility model;

[0017] The markings in the diagram are as follows: 1. Battery holder; 2. Side frame; 3. Pressure plate; 4. Reel drum; 5. Fixed shaft; 6. Rotary spring; 7. Slot; 8. Wire; 9. Tram outer panel; 10. Placement slot; 11. Hemispherical slot; 12. Switch cavity; 13. First clamping slot; 14. Hemispherical seat; 15. Power connection port; 16. Limiting rod; 17. Limiting strip; 18. Second clamping slot; 19. First rotating shaft; 20. Toggle button; 21. Second rotating shaft; 22. Toggle bar; 23. Rotating bar; 24. Support spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The structural features of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] See Figure 1-2A switching power supply for electric vehicles includes a battery holder 1. Side brackets 2 are fixedly mounted on both sides of the upper end of the battery holder 1. A pressure plate 3 is fixedly mounted on the top of the side brackets 2. A fixed shaft 5 is fixedly mounted in the middle of the side brackets 2. A coiled drum 4 is sleeved on the fixed shaft 5. A spiral spring 6 with a spiral cross-section is fixed between the coiled drum 4 and the fixed shaft 5. The spiral spring 6 rotates the coiled drum 4. A wire 8 is wound on the coiled drum 4. The wire 8 is connected to the circuit of the battery holder 1. The outer wall of the wire 8 is flush with the inner wall of the pressure plate 3. The sliding connection prevents the two wires of the electric wire 8 from getting stuck together at the same time. The front of the battery holder 1 is the outer panel 9 of the electric vehicle. The outer panel 9 of the electric vehicle has a recessed placement groove 10. The electric wire 8 passes through the placement groove 10. A hemispherical groove 11 is fixedly installed in the placement groove 10. The electric wire 8 passes through the center line of the hemispherical seat 14 and is fixedly connected to the hemispherical seat 14. The hemispherical seat 14 is pulled into the hemispherical groove 11. Its arc structure will not bump or be blocked in the hemispherical groove 11. The front end of the hemispherical seat 14 has a power connection port 15 for connecting to the charger.

[0023] See Figure 2-3 The outer panel 9 of the tram has a switch cavity 12 on one side of the placement slot 10. The switch cavity 12 has a through first clamping slot 13 on the outer side and a through second clamping slot 18 on the inner side. The first clamping slot 13 is equipped with a toggle button 20 through a first rotating shaft 19. The second clamping slot 18 is equipped with a limit rod 16 through a second rotating shaft 21. Moving the toggle button 20 causes the limit rod 16 to tilt. The reel 4 has a circumferential array of slots 7 on one side. The limit rod 16 is fixed with a limit strip 17 at the slot 7. The limit strip 17 is inserted into the slot 7 of the reel 4, and the reel 4 cannot rotate. The limit rod 16 and the toggle button 20 are connected by a spring-rocker mechanism.

[0024] See Figure 2-3 The part of the toggle button 20 located on the other side of the first rotating shaft 19 is the toggle bar 22, and the part of the limit rod 16 located on the other side of the second rotating shaft 21 is the rotating bar 23. The toggle bar 22 and the rotating bar 23 are in contact. The upper and lower sides of the toggle bar 22 and the rotating bar 23 are slidably connected to the upper and lower side walls of the switch cavity 12. A support spring 24 is fixedly provided on one side of the rotating bar 23. When the toggle bar 22 presses down on the rotating bar 23 towards the support spring 24, the limit rod 16 on the other side of the second rotating shaft 21 where the rotating bar 23 is located is lifted up. The support spring 24 makes the limit bar 17 stuck in the slot 7 when there is no external force.

[0025] This utility model relates to a switching power supply for electric vehicles. It has a simple structure, allowing the power cord to be extended for easy charging. It also features a switch mechanism that secures the cord when extended and automatically retracts it when the switch is turned on. It is easy to operate, highly practical, and suitable for widespread application.

[0026] For specific usage, please refer to... Figure 1-2When charging, the toggle button 20 is moved to one side, the hemispherical base 14 is engaged, and the power port 15 is pulled out from the placement slot 10. During this process, the wire 8 coiled on the reel 4 is pulled out, and the reel 4 rotates accordingly, tightening the internal spiral spring 6. When the toggle button 20 is released, the limit bar 17 is reset and locked into the slot 7 of the reel 4, and the reel 4 cannot rotate. At this time, the pulled-out wire 8 remains fixed. The extended part of the wire 8 allows the charger to be inserted further away, and the user can hold the hemispherical base 14 and the charger with both hands to plug and unplug them.

[0027] Reference Figure 2-3 When the wire 8 is being wound up or down, the toggle button 20 is moved to one side. Under the action of the first rotating shaft 19, the toggle bar 22 presses the rotating bar 23 down toward the support spring 24. The limiting rod 16 on the other side of the second rotating shaft 21 where the rotating bar 23 is located is lifted up, thereby separating the limiting bar 17 from the slot 7. When the wire 8 is not subjected to external force, the vortex spring 6 returns to its original position, driving the reel 4 to rotate, thus automatically winding up the wire 8. When the winding reaches the end, the hemispherical seat 14 is pulled into the hemispherical groove 11.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A switching power supply for electric vehicles, comprising a battery holder (1), characterized in that, Side frames (2) are fixedly provided on both sides of the upper end of the battery holder (1). A pressure plate (3) is fixedly provided on the top of the side frame (2). A fixed shaft (5) is fixedly provided in the middle of the side frame (2). A coiled drum (4) is sleeved on the fixed shaft (5). A spiral spring (6) with a spiral cross section is fixed between the coiled drum (4) and the fixed shaft (5). An electric wire (8) is coiled on the coiled drum (4). The electric wire (8) is connected to the circuit of the battery holder (1). The front of the battery holder (1) is the outer panel (9) of the tram. The outer panel (9) of the tram is provided with a recessed placement groove (10). The wire (8) passes through the placement groove (10). The outer panel (9) of the tram is provided with a switch cavity (12) on one side of the placement groove (10). The switch cavity (12) is provided with a through first clamping groove (13) on the outer side and a through second clamping groove (18) on the inner side. The first clamping groove (13) is provided with a toggle button (20) installed through a first rotating shaft (19). The second clamping groove (18) is provided with a limit rod (16) installed through a second rotating shaft (21). The side of the reel (4) is provided with a circumferential array of slots (7). The limit rod (16) is provided with a limit strip (17) fixed at the slot (7). The limit rod (16) and the toggle button (20) are connected by a spring rocker mechanism.

2. The switching power supply for electric vehicles according to claim 1, characterized in that, The placement slot (10) is fixedly provided with a hemispherical slot (11), the wire (8) passes through the center line of the hemispherical seat (14) and is fixedly connected to the hemispherical seat (14), and the front end of the hemispherical seat (14) is provided with a power inlet (15).

3. The switching power supply for electric vehicles according to claim 1, characterized in that, The outer wall of the wire (8) is slidably connected to the inner wall of the pressure plate (3).

4. A switching power supply for electric vehicles according to claim 1, characterized in that, The portion of the toggle button (20) located on the other side of the first rotating shaft (19) is a toggle bar (22), and the portion of the limit rod (16) located on the other side of the second rotating shaft (21) is a rotating bar (23). The toggle bar (22) and the rotating bar (23) are in contact. The upper and lower sides of the toggle bar (22) and the rotating bar (23) are slidably connected to the upper and lower side walls of the switch cavity (12). A support spring (24) is fixedly provided on one side of the rotating bar (23).

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