Charging pile

Abstract

A charging pile comprises a charging pile shell, an electric appliance part used for supplying power is arranged in the charging pile shell, the electric appliance part is electrically connected with a charging gun used for supplying power to the outside through a charging cable, and the charging cable is arranged in the charging pile shell in a retractable mode. The charging pile shell is internally provided with a wire harness inward-retracting mechanism capable of rotationally retracting the wire harness, the charging cable is sleeved with the wire harness inward-retracting mechanism, the wire harness inward-retracting mechanism makes contact with the charging cable, and the wire harness inward-retracting mechanism is provided with a protection mechanism capable of automatically adapting to the diameter change of the wire harness. According to the invention, the wire harness can be retracted through the wire harness retraction mechanism, the structure is compact, the working efficiency is high, and automatic adaptation can be carried out through the protection mechanism according to the wire diameter change caused by the environment temperature change.

Description

Technical Field

[0001] The invention belongs to the technical field of charging piles and relates to a charging pile. Background Art

[0002] As a kind of energy replenishment equipment, charging piles are widely used in many fields. Especially after the popularization of electric vehicles, charging piles are laid over a large area. Since the current charging piles are all set up outdoors, their wiring harnesses often lack effective protection. At present, a charging pile with a retractable wire has been produced to address this problem. However, such charging piles often use a winding wheel to wind the wiring harness around them. Such a structure occupies too much volume, seriously encroaches on the space of internal electrical components, and has design defects. In addition, the wiring harness is fed into the device by laying rollers at the outlet, such as the integrated wiring harness with a new energy charging pile disclosed in patent 2018214337620, including Fixed cylinder, box body, installation chamber 1, installation chamber 2, rotating shaft 1, conveying roller 1, rotating shaft 2 and conveying roller 2. The box body is connected to the right end of the fixed cylinder. The charging line passes through the fixed cylinder and the box body and extends to the right side of the box body. The installation chamber 1 is set at the left end inside the box body. The rotating shaft 1 is installed inside the installation chamber 1 on the upper side of the charging line. The conveying roller 1 is set on the annular side of the rotating shaft 1, and the lower end of the annular side of the conveying roller 1 fits with the charging line. The rotating shaft 2 is installed inside the installation chamber 1 on the lower side of the charging line. The conveying roller 2 is set on the annular side of the rotating shaft 2, and the upper end of the annular side of the conveying roller 2 fits with the charging line. This design realizes the protection function of the charging pile integrated wiring harness. The patent rotates the conveying roller 1 and the conveying roller 2, and then moves the charging line to the left for recycling. However, this type of component only squeezes and conveys the wiring harness through both sides. It is easy to squeeze and deform the wiring harness for a long time. In addition, because the wiring harness will expand or contract accordingly due to changes in ambient temperature, this kind of wire collection method is easy to cause excessive pressure and damage to the wire skin when the wire harness expands because the roller position remains unchanged. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a charging pile with compact structure, high working efficiency, and the ability to automatically adapt to changes in wire diameter caused by changes in ambient temperature.

[0004] The technical solution adopted by the present invention is:

[0005] A charging pile comprises a charging pile shell, wherein an electrical component for power supply is arranged inside the charging pile shell, wherein the electrical component is electrically connected to a charging gun for external power supply via a charging cable, wherein the charging cable is retractably arranged inside the charging pile shell, wherein a wire harness retracting mechanism capable of rotating and recovering the wire harness is arranged inside the charging pile shell, wherein the wire harness retracting mechanism is sleeved on the outside of the charging cable and is arranged in contact with the charging cable, and wherein a protective mechanism capable of automatically adapting to changes in wire harness diameter is arranged on the wire harness retracting mechanism.

[0006] Furthermore, the wire harness retracting mechanism comprises a mounting ring, on which a plurality of retracting wheels which can rotate synchronously and cooperate to retract the wire harness are spaced apart, and the protection mechanism is arranged on the circumferential surface of the retracting wheel.

[0007] Furthermore, a rotating ring is arranged inside the mounting ring, and a plurality of winding wheel driving columns for driving the winding wheel to rotate are evenly arranged in a ring on one end surface of the rotating ring, and the winding wheel driving columns protrude from the mounting ring, and a plurality of teeth are evenly arranged in a ring on the other end surface of the rotating ring, and the teeth can cooperate with an external driving device to drive the rotating ring to rotate, and sliding grooves are provided on the end surfaces of the mounting ring corresponding to the winding wheel driving columns and the teeth.

[0008] Furthermore, a plurality of connecting blocks are evenly distributed and fixed in an annular shape outside the mounting ring, the connecting blocks are cylindrical, and the take-up wheel is rotatably mounted outside the connecting blocks.

[0009] Furthermore, the connecting block is provided with a through slot for the take-up wheel driving column to pass through, and the middle part of the circumferential surface of the connecting block is provided with a guide ring that enables the take-up wheel to rotate along.

[0010] Furthermore, the inner side of the take-up wheel is evenly provided with inclined rifling that cooperates with the take-up wheel driving column to drive the take-up wheel to rotate, and the middle part of the inner side of the take-up wheel is provided with a guide groove that cooperates with the guide ring for guidance.

[0011] Furthermore, the mounting ring is provided with a plurality of mounting seats for fixing.

[0012] Furthermore, the protection mechanism includes a plurality of extrusion plates, which are evenly distributed on the circumference of the take-up wheel in a retractable and sliding ring. When the wire harness expands, the extrusion plates can be retracted into the take-up wheel and contact the wire harness to cooperate with the take-up, so that the take-up wheel will not squeeze the wire harness; when the wire harness shrinks, the extrusion plates can extend out of the take-up wheel and contact the wire harness to cooperate with the take-up, ensuring normal take-up. That is, it can automatically adapt to changes in wire diameter caused by changes in ambient temperature.

[0013] Furthermore, a resetting compression spring is fixedly provided on the bottom walls on both sides of the compression plate, and the other end of the compression spring is fixedly connected to the grooved bottom surface of the take-up wheel.

[0014] Furthermore, a trigger groove is symmetrically arranged on one side surface of the extrusion plate, and a trigger plate that is triggered to slide outward is arranged below the trigger groove. The lower end of the trigger plate is slidably arranged in the slot through a guide rod with a return spring, and the trigger plate is provided with a trigger tooth for positioning the extrusion plate, and the trigger tooth is a structure that is inclined on the lower side and horizontal on the upper side.

[0015] Furthermore, an auxiliary groove is provided on the other side of the extrusion plate at a position corresponding to the trigger groove, and the top surface of the auxiliary groove is set higher than the top surface of the trigger groove. An auxiliary plate is slidably installed in the auxiliary groove, and a force unloading block is provided on the side of the auxiliary plate facing the trigger plate. The upper end surface of the force unloading block is connected to the extrusion plate by a force unloading spring, and the lower side of the force unloading block can abut against the trigger tooth to position the extrusion plate.

[0016] The beneficial effects of the present invention are as follows: the wire harness can be retracted by means of a wire harness retracting mechanism, which has a compact structure and high working efficiency, and can automatically adapt to changes in wire diameter caused by changes in ambient temperature through a protective mechanism, thereby avoiding problems such as wire sheath breakage caused by excessive squeezing force during storage due to expansion of the wire harness, or failure to complete storage due to insufficient squeezing force after the wire diameter is reduced. Since no winding method is adopted, more space can be saved for internal electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a charging pile of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall structure of the wire harness retracting mechanism of the present invention;

[0019] Figure 3 yes Figure 2 The main view;

[0020] Figure 4 yes Figure 2 Schematic diagram of the structure after removing some protection mechanisms;

[0021] Figure 5 It is a structural schematic diagram of a take-up wheel equipped with a protection mechanism according to the present invention;

[0022] Figure 6 yes Figure 5 Side view of

[0023] Figure 7 is along Figure 6 A schematic cross-sectional structure diagram along the BB direction;

[0024] Figure 8 yes Figure 7 A schematic diagram of the structure at position C of FIG.

[0025] Fig. 9 It is a structural schematic diagram of the extruded plate of the present invention.

[0026] Among them, there are mounting ring 10, rotating ring 11, connecting block 12, take-up wheel driving column 13, take-up wheel 14, charging pile shell 15, charging cable 16, mounting seat 17, rifling 18, guide groove 19, extrusion plate 20, guide ring 22, charging gun 23, teeth 24, trigger plate 25, auxiliary plate 26, extrusion spring 27, guide rod 28, unloading spring 29, unloading block 30, trigger teeth 31, trigger groove 32, auxiliary groove 33. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific embodiments, but the present invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all possible alternatives, improvements and equivalents within the scope of the claims.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more, unless otherwise clearly defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] Referring to 1-9, this embodiment provides a charging pile, including a charging pile shell 15, wherein electrical components for power supply are arranged inside the charging pile shell 15, and the electrical components are electrically connected to a charging gun 23 for external power supply through a charging cable 16, and the charging cable 16 is retractable and arranged inside the charging pile shell 15, and a wire harness retraction mechanism capable of rotating and recovering the wire harness is arranged inside the charging pile shell 15, and the wire harness retraction mechanism is mounted on the outside of the charging cable 16 and is arranged in contact with it, and a protection mechanism for automatically adapting to changes in the diameter of the wire harness is arranged on the wire harness retraction mechanism.

[0032] The wire harness retracting mechanism of this embodiment includes a mounting ring 10, which is annular in shape as a whole. A plurality of reel wheels 14 that can rotate synchronously and cooperate with the reeling wire harness are spaced apart on the mounting ring 10, and the protection mechanism is arranged on the circumferential surface of the reel wheel 14. A rotating ring 11 is arranged inside the mounting ring 10, and a plurality of reel drive columns 13 for driving the reel wheel 14 to rotate are evenly arranged on one end surface of the rotating ring 11, and the reel drive column 13 protrudes out of the mounting ring 10, and a plurality of teeth 24 are evenly arranged on the other end surface of the rotating ring 11, and the teeth 24 can cooperate with an external driving device to drive the rotating ring 11 to rotate, and the mounting ring 10 is provided with a slide groove on the end surface corresponding to the reel drive column 13 and the teeth 24. A plurality of connecting blocks 12 are evenly fixed on the outside of the mounting ring 10 in an annular manner, and the connecting block 12 is cylindrical, and the reel wheel 14 can be rotatably mounted outside the connecting block 12. The connecting block 12 is provided with a through groove for the take-up wheel driving column 13 to pass through, and a guide ring 22 is provided in the middle of the circumferential surface of the connecting block 12 to enable the take-up wheel 14 to rotate along. The inner side of the take-up wheel 14 is evenly provided with inclined rifling 18 that cooperates with the take-up wheel driving column 13 to drive the take-up wheel 14 to rotate, and the inner middle part of the take-up wheel 14 is provided with a guide groove 19 that cooperates with the guide ring 22 for guidance. The mounting ring 10 is provided with a plurality of mounting seats 17 for fixing. The charging cable 16 is inserted into the mounting ring 10. When the charging cable 16 needs to be recovered, the take-up wheel 14 can be recovered by synchronously rotating the take-up wheel 14, and the take-up wheel 14 can work together to recover the charging cable 16. When it is necessary to control the synchronous rotation of the take-up wheel 14, the external driving device can drive the rotating ring 11 through the teeth 24 to rotate the take-up wheel driving column 13. The movement of the take-up wheel driving column 13 will cause the take-up wheel 14 to rotate under the guidance of the guide groove 19 through the rifling 18.

[0033] The protection mechanism described in this embodiment includes a plurality of extrusion plates 20, and the extrusion plates 20 are evenly distributed on the circumferential surface of the take-up wheel 14 in a retractable and slidable ring shape. When the wire harness expands, the extrusion plates 20 can be retracted into the take-up wheel 14 and contact the wire harness to cooperate with the take-up, so that the take-up wheel 14 will not squeeze the wire harness; when the wire harness shrinks, the extrusion plates 20 can extend out of the take-up wheel 14 and contact the wire harness to cooperate with the take-up, ensuring normal take-up. That is, it can automatically adapt to changes in wire diameter caused by changes in ambient temperature. Extrusion springs 27 are fixedly provided on the bottom walls on both sides of the extrusion plate 20, and the other end of the extrusion spring 27 is fixedly connected to the slotted bottom surface of the take-up wheel 14. A trigger groove 32 is symmetrically arranged on one side of the extrusion plate 20, and a trigger sheet 25 that slides outward when triggered by the trigger groove 32 is arranged below the trigger groove 32. The lower end of the trigger sheet 25 is slidably arranged in the slot through a guide rod 28 with a return spring. A trigger tooth 31 for positioning the extrusion plate 20 is arranged on the trigger sheet 25, and the trigger tooth 31 is a structure with a lower side inclined and an upper side horizontal. An auxiliary groove 33 is arranged on the other side of the extrusion plate 20 corresponding to the position of the trigger groove 32, and the top surface of the auxiliary groove 33 is arranged higher than the top surface of the trigger groove 32. An auxiliary plate 26 is slidably installed in the auxiliary groove 33. A side of the auxiliary plate 26 facing the trigger sheet 25 is provided with a force unloading block 30, and the upper end surface of the force unloading block 30 is connected to the extrusion plate 20 through a force unloading spring 29. The lower side of the force unloading block 30 can abut against the trigger tooth 31 to position the extrusion plate 20. When the wire harness retracting mechanism rotates, the extrusion plate 20 will be squeezed and contacted with the outer skin of the wire harness. At this time, the extrusion plate 20 will overcome the elastic force of the unloading spring 29 and the extrusion spring 27 and move downward. When the cable becomes thicker due to temperature changes, in order to avoid excessive pressure from damaging the wire skin when retracting, the upper end inclined surface of the trigger plate 25 will contact the inclined surface of the top wall of the trigger groove 32, so that the trigger plate 25 moves outward under the guidance of the guide rod 28. At this time, the unloading block 30 moves to the lower side of the trigger tooth 31, so that the unloading spring 29 unloads the force, thereby reducing the extrusion force of the extrusion plate 20 and ensuring the safety of the outer wire skin, so that the extrusion plate 20 will automatically generate unloading behavior after the stroke becomes larger. When the cable becomes thinner, the extrusion plate 20 will reset under the elastic force of the extrusion spring 27. At this time, the unloading spring 29 will pull the unloading block 30 to reset the auxiliary plate 26. During the upward movement, since the lower side of the trigger tooth 31 is an inclined surface, it will not hinder the resetting process.

[0034] The above-described embodiments are only descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A charging pile, comprising a charging pile housing, wherein an electrical component for power supply is arranged inside the charging pile housing, wherein the electrical component is electrically connected to a charging gun for external power supply through a charging cable, wherein the charging cable is retractably arranged in the charging pile housing, and wherein: A wire harness retracting mechanism capable of rotating and recovering the wire harness is arranged inside the charging pile housing. The wire harness retracting mechanism is sleeved on the outside of the charging cable and is arranged in contact with the charging cable. A protection mechanism that automatically adapts to changes in the wire harness diameter is arranged on the wire harness retracting mechanism.

2. A charging pile according to claim 1, characterized in that: The wire harness retracting mechanism comprises a mounting ring, on which a plurality of retracting wheels which can rotate synchronously and cooperate to retract the wire harness are sleeved at intervals, and the protection mechanism is arranged on the circumferential surface of the retracting wheel.

3. A charging pile according to claim 2, characterized in that: A rotating ring is arranged inside the mounting ring, and a plurality of winding wheel driving posts for driving the winding wheel to rotate are evenly arranged in a ring on one end surface of the rotating ring, and the winding wheel driving posts protrude from the mounting ring, and a plurality of teeth are evenly arranged in a ring on the other end surface of the rotating ring, and the teeth can cooperate with an external driving device to drive the rotating ring to rotate, and sliding grooves are provided on the end surfaces of the mounting ring corresponding to the winding wheel driving posts and the teeth.

4. A charging pile according to claim 2, characterized in that: A plurality of connecting blocks are evenly distributed and fixed in an annular shape outside the mounting ring. The connecting blocks are cylindrical, and the wire take-up wheel is rotatably sleeved outside the connecting blocks.

5. A charging pile according to claim 4, characterized in that: The connecting block is provided with a through groove for the take-up wheel driving column to pass through, and a guide ring that enables the take-up wheel to rotate is provided in the middle of the circumferential surface of the connecting block, and the inner side of the take-up wheel is evenly provided with inclined rifling that cooperates with the take-up wheel driving column to drive the take-up wheel to rotate, and a guide groove that cooperates with the guide ring for guidance is provided in the middle of the inner side of the take-up wheel.

6. A charging pile according to claim 2, characterized in that: The mounting ring is provided with a plurality of mounting seats for fixing.

7. A charging pile according to claim 2, characterized in that: The protection mechanism comprises a plurality of extrusion plates, and the extrusion plates are evenly distributed on the circumferential surface of the take-up wheel in a telescopic and slidable ring shape.

8. A charging pile according to claim 7, characterized in that: The bottom walls on both sides of the extrusion plate are fixedly provided with extrusion springs for resetting, and the other end of the extrusion spring is fixedly connected to the grooved bottom surface of the take-up wheel.

9. A charging pile according to claim 7, characterized in that: A symmetrically arranged trigger groove is arranged on one side surface of the extrusion plate, a trigger plate which is triggered to slide outward is arranged below the trigger groove, the lower end of the trigger plate is slidably arranged in the slot through a guide rod with a return spring, the trigger plate is provided with a trigger tooth for positioning the extrusion plate, and the trigger tooth is a structure with an inclined lower side and a horizontal upper side.

10. A charging pile according to claim 9, characterized in that: An auxiliary groove is provided on the other side of the extrusion plate at a position corresponding to the trigger groove, and the top surface of the auxiliary groove is set higher than the top surface of the trigger groove. An auxiliary plate is slidably installed in the auxiliary groove, and a force unloading block is provided on the side of the auxiliary plate facing the trigger plate. The upper end surface of the force unloading block is connected to the extrusion plate through a force unloading spring, and the lower side of the force unloading block can abut against the trigger tooth to position the extrusion plate.

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