CN114559843A

CN114559843A - Charging butt joint self-adaptive adjusting structure

Info

Publication number: CN114559843A
Application number: CN202210265172.6A
Authority: CN
Inventors: 潘显成; 王勇; 李黎明; 刘济海; 赵宇; 朱坤
Original assignee: Anhui Heli Co Ltd
Current assignee: Anhui Heli Co Ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-05-31
Anticipated expiration: 2042-03-17
Also published as: CN114559843B

Abstract

The invention discloses a charging butt joint self-adaptive adjusting structure, which comprises a charging pile and a vehicle body charging end, wherein a vehicle body electrode is arranged at the front end of the vehicle body charging end, and a charging electrode matched with the vehicle body electrode is arranged at the front end of the charging pile: the front end of the charging pile is pivoted with a first guide structure, and the first guide structure comprises a guide groove and a guide block arranged at the central line position of the guide groove; the front end lower edge of the charging end of the vehicle body is provided with an opening, the bottom of the charging end of the vehicle body is provided with a second guide structure communicated with the opening, the second guide structure comprises a guide rail, and the guide rail comprises a reducing section and a parallel section which is connected to the reducing end of the reducing section and used for containing a guide block. In the charging process of the vehicle, large left-right deviation can be allowed when the electrodes are butted; the vehicle docking process can be allowed to have large angle deviation, and the flexible pin joint of the guide groove and the base plate makes up the angle deviation in the charging docking process.

Description

Charging butt joint self-adaptive adjusting structure

Technical Field

The invention relates to the technical field of automatic guided vehicles, in particular to a charging butt joint self-adaptive adjusting structure.

Background

An Automated Guided Vehicle (AGV) is an Automated Guided Vehicle (AGV) having an Automated guidance device such as a magnetic stripe, a track, or a laser, which travels along a planned route, is powered by a battery, and is equipped with safety protection and various auxiliary mechanisms (e.g., a transfer and assembly mechanism). Usually, a plurality of AGVs, a control computer, a navigation device, a charging device and peripheral accessory devices form an AGV system, and the main working principle of the AGV system is that under the monitoring and task scheduling of the control computer, the AGVs can accurately walk according to a specified path to complete a series of operation tasks after reaching a task designated position, and the control computer can determine whether to charge a charging area automatically according to the electric quantity of the AGVs.

The automatic guided vehicle requires that the vehicle body charging structure can be reliably butted with the charging pile in the automatic charging process. Fill electric pile under the general condition and fix on ground, when needing to charge, the automated guided vehicle traveles and fills electric pile fixed position, realizes automobile body structure and the butt joint of filling electric pile. Because the position of filling electric pile is fixed, the automated guided vehicle initiative is close to and fills electric pile, and the relative position between the automobile body structure of charging and the electric pile that fills after the butt joint inevitably can take place to deviate. Especially when many cars dock same electric pile that fills, positional deviation will be bigger. As shown in fig. 7 to 8, such deviation is mainly expressed as a deviation in left and right positions and an angular deviation. At present, in order to ensure that reliable docking can still be achieved after deviation occurs, the common method is to make the electrode of the vehicle body and the electrode of the charging pile very large, and even if the deviation occurs, the electrode of the vehicle body and the electrode of the charging pile have a certain contact ratio, so that the reliability during charging is ensured.

Above-mentioned scheme can solve to a certain extent and control the deviation problem, but can not effectively solve the angle deviation problem to the charging structure spare can be done bigger, all brings many negative effects to whole car structural arrangement, whole car outward appearance and cost control.

Disclosure of Invention

The invention aims to provide the technical field of automatic guided vehicles, and aims to solve the problems in the background art, and the reliable butt joint between a vehicle body electrode and a charging pile can still be realized under the condition that the vehicle body electrode and the charging electrode are not very large.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a butt joint self-adaptation adjustment structure charges, is including filling electric pile and automobile body end of charging, the automobile body end of charging front end is equipped with the automobile body electrode, fill the electric pile front end be equipped with automobile body electrode assorted charging electrode: the front end of the charging pile is pivoted with a first guide structure, and the first guide structure comprises a guide groove and a guide block arranged at the central line position of the guide groove; the front end lower edge of the charging end of the vehicle body is provided with an opening, the bottom of the charging end of the vehicle body is provided with a second guide structure communicated with the opening, the second guide structure comprises a guide rail, and the guide rail comprises a reducing section and a parallel section which is connected to the reducing end of the reducing section and used for containing a guide block.

As a further scheme of the invention: the guide groove is formed by encircling a guide plate and side plates connected to two sides of the guide plate.

As a further scheme of the invention: the base comprises a bottom plate and end plates connected to two sides of the bottom plate; the first guide structure further comprises a first guide rod penetrating through the side plate, and the end part of the first guide rod is connected with the end plate; and return springs are symmetrically sleeved on the peripheries of the first guide rods positioned on the two sides of the guide plate.

As a further scheme of the invention: the charging pile also comprises a charging seat and a substrate connected below the charging seat in a sliding manner; the base plate is placed on the bottom plate, waist-shaped holes are symmetrically formed in two sides of the base plate, second guide rods penetrate through the waist-shaped holes, and the end portions of the second guide rods are connected with the end plates; the first guide rod is parallel to the second guide rod.

As a further scheme of the invention: fill electric pile still includes the thimble of locating its front end symmetrically.

As a further scheme of the invention: the second guide rod is in clearance fit connection with the waist-shaped hole.

Compared with the prior art, the invention has the beneficial effects that:

the vehicle body electrode and the charging electrode are not required to be large, smooth butt joint of the vehicle body electrode and the charging electrode during charging can be ensured, arrangement of a charging structure is facilitated, and the vehicle charging structure is friendly to vehicle design.

During the charging process of the vehicle, the deviation of the electrodes in the butt joint can be allowed to play a role in correction. The angle of the tapered section is larger, so that larger left-right deviation is allowed when the electrodes are butted, and the allowable deviation range is larger; can allow the vehicle butt joint in-process to have great angular deviation, the guide way has compensatied the angular deviation of the butt joint in-process that charges with the nimble pin joint of filling electric pile base plate.

The structure of automobile body electrode is fairly simple, because the general case is that a plurality of AGV vehicles share one and fills electric pile, simple structure's automobile body charging structure can better control cost, convenient production.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a charging pile, a first guiding structure and a base in the invention;

FIG. 3 is a schematic structural diagram of a charging pile according to the present invention;

FIG. 4 is a schematic view of the charging terminal of the vehicle body according to the present invention;

FIG. 5 is a bottom view of the charging end of the vehicle body according to the present invention;

FIG. 6 is a schematic view of the structure of the guide groove and the guide block of the present invention;

FIG. 7 is a schematic diagram illustrating a left-right deviation between a charging post and a charging end of a vehicle body in the prior art;

fig. 8 is a schematic diagram illustrating an angular deviation between a charging pile and a charging end of a vehicle body in the related art;

in the figure: the charging device comprises a charging pile 1, a charging electrode 11, a charging seat 12, a base plate 13, a waist-shaped hole 131, a thimble 14, a pin shaft 15, a charging end 2, a body electrode 21, an opening 22, an insulating plate 23, a mounting surface 24, a first guide structure 3, a guide groove 31, a guide plate 311, a side plate 312, a guide block 32, a first guide rod 33, a reset spring 34, a second guide rod 35, a base 4, a base plate 41, an end plate 42, a guide rail 5, a tapered section 51 and a parallel section 52.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or communication connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, in the embodiment of the invention, a charging butt joint adaptive adjustment structure comprises a charging pile 1 and a vehicle body charging end 2, wherein the charging pile 1 is fixed on the ground, and the vehicle body charging end 2 is installed on an AGV vehicle; the front end of the charging end 2 of the car body is provided with a car body electrode 21, the front end of the charging pile 1 is provided with a charging electrode 11 matched with the car body electrode 21, and when the AGV forklift is charged, the car body electrode 21 is in butt joint with the charging electrode 11. Wherein: the front end of the charging pile 1 is pivoted with a first guide structure 3, and the first guide structure 3 comprises a guide groove 31 and a guide block 32 arranged at the central line position of the guide groove; an opening 22 is opened to the lower edge of the front end of the vehicle body charging end 2, a second guide structure communicated with the opening 22 is arranged at the bottom of the vehicle body charging end 2, the second guide structure comprises a guide rail 5, and the guide rail 5 comprises a tapered section 51 and a parallel section 52 connected to the tapered end of the tapered section 51 and used for accommodating the guide block 32. The whole guide rail 5 has a cross section of a funnel shape, and during the process that the charging end 2 of the vehicle body is close to the charging pile 1, the guide rail 5 slides on the upper end face of the guide groove 31, and the guide block 32 slides into the parallel section 52 through the tapered section 51 until the vehicle body electrode 21 is butted with the charging electrode 11. The gradual-expanding end of convergent section 51 has great width, and at the butt joint in-process that charges, even the initial automobile body charges and holds 2 movements to take place to deviate, convergent section 51 also can play the effect of correcting the skew, along with the automobile body charges and holds 2 constantly being close to, and finally guide block 32 still can slide in parallel section 52 smoothly, has guaranteed the accurate butt joint of automobile body electrode 21 with charging electrode 1.

Further, the guide groove 31 is surrounded by a guide plate 311 and side plates 312 connected to both sides of the guide plate 311. The distance between the two side plates 312 is slightly larger than the width of the divergent end of the tapered section 51, and the side plates 312 limit the degree of the deviation movement of the side-to-side movement of the tapered section 51.

Further, the device also comprises a base 4, wherein the base 4 comprises a bottom plate 41 and end plates 42 connected to two sides of the bottom plate 41; the first guide structure 3 further comprises a first guide rod 33 penetrating the edge plate 312, and the end of the first guide rod 33 is connected with the end plate 42; the same return springs 34 are symmetrically sleeved on the peripheries of the first guide rods 33 positioned on the two sides of the guide plate 311; the guide groove 31 is slidable left and right on the first guide bar 33. At the in-process that automobile body charging end 2 was close to and fills electric pile 1, if automobile body charging end 2 takes place the position deviation, then can cause the striking to first guide structure 3, and guide way 31 receives the striking can horizontal hunting, and reset spring 34 helps guide way 31 to reset to the intermediate position fast through the elastic deformation of self this moment.

Further, the charging pile 1 further comprises a charging seat 12 and a substrate 13 connected below the charging seat 12 in a sliding manner; the charging base 12 is filled with a battery assembly, and the charging base 12 can move back and forth relative to the substrate 13. The base plate 13 is placed on the bottom plate 42, waist-shaped holes 131 are symmetrically formed in two sides of the base plate 13, second guide rods 35 penetrate through the waist-shaped holes 131, and the end portions of the second guide rods 35 are connected with the end plate 42; the first guide bar 33 is parallel to the second guide bar 35. When the guide slot 31 is impacted and swings left and right, the base 13 will swing slightly, and the waist-shaped hole 131 is connected with the second guide rod 35 in a clearance fit manner, so that the freedom degree of the swing of the base 13 is released.

Further, as shown in fig. 6, both side edges of the guide plate 311 are parallel to the length direction of the guide block 32; the side of the guide plate 311 connected with the base plate 13 protrudes outwards to form a first convex part, the side of the base plate 13 connected with the guide plate 311 also protrudes outwards to form a second convex part, and the first convex part and the second convex part are pivoted together through a pin shaft 15 penetrating through the first convex part and the second convex part. The end of the side plate 312 near the first protrusion is bent toward the inner side of the guiding plate 311 to form a bent portion partially covering both sides of the first protrusion, and the bent portion stops the tapered section 51 to further limit the excessive deviation of the tapered section 51.

Further, fill electric pile 1 still includes the thimble 14 of locating its front end symmetrically. The number of the thimbles 14 is two, and the thimbles are symmetrically arranged at two sides of the charging electrode 11. The front end of the vehicle body charging terminal 2 is provided with a wide mounting surface 24, a projecting insulating plate 23 is fitted into the mounting surface, and the vehicle body electrode 21 is fitted into the insulating plate 23.

When the AGV vehicle was automatic to charge, automobile body charging end 2 was gradually close to filling electric pile 1 along with the vehicle. Ideally, the charging end 2 of the body is aligned with the charging post 1, i.e. the guide block 32 is just inserted into the parallel portion 52 of the guide rail 5. The insertion of the guide blocks 32 into the parallel segments 52 ensures that the body electrodes 12 correspond exactly one to the charging electrodes 11. When the AGV further drives to the charging pile 1, a certain contact force is achieved between the body electrode 12 and the charging electrode 11, and the AGV starts to charge.

In most non-ideal situations, the charging end 2 of the vehicle body and the charging pile 1 can be dislocated or deviated in the horizontal direction. At this time, when the AGV vehicle is driven toward the charging pile 1 step by step, the side plate 312 comes into contact with the tapered section 51 of the guide rail 5 first. The tapered section 51 forces the guide groove 31 to slide left and right on the first guide bar 33. The guide slot 31 carries the base 13 to deflect through the hinge pin 15. Subsequently, one side of the thimble 14 contacts the upper mounting surface 24, and the mounting surface 24 will push the thimble 14 to force the waist-shaped hole 131 at the tail of the base 13 to deflect relative to the second guide rod 35 until the other side of the mounting surface 24 contacts the other thimble 14 and both sides are stressed in the same direction. The lengths of the two ejector pins 14 are consistent, so that the plane of the vehicle body electrode 21 is parallel to the plane of the charging pile electrode 11 after the mounting surface 24 is in contact with the ejector pins 14, and the contact force between the electrodes is uniform. As the AGV vehicle approaches further toward charging post 1, charging dock 12 slides rearward relative to base 13 and guide blocks 32 engage inside parallel segments 52 of guide rail 5. Therefore, the vehicle body electrodes 12 correspond to the charging electrodes 11 one by one, and the contact force of each pair of electrodes is uniform.

Although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such descriptions are provided for clarity, and it is understood that the specification is incorporated herein by reference, and the embodiments described in each embodiment may be combined as appropriate to form other embodiments, which will be apparent to those skilled in the art.

Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The utility model provides a butt joint self-adaptation adjustment structure charges, charges end (2) including filling electric pile (1) and automobile body, automobile body charges end (2) front end and is equipped with automobile body electrode (21), fill electric pile (1) front end be equipped with automobile body electrode (21) assorted charging electrode (11), its characterized in that:

the front end of the charging pile (1) is pivoted with a first guide structure (3), and the first guide structure (3) comprises a guide groove (31) and a guide block (32) arranged at the central line position of the guide groove;

an opening (22) is formed in the lower edge of the front end of the vehicle body charging end (2), a second guide structure communicated with the opening (22) is arranged at the bottom of the vehicle body charging end (2), the second guide structure comprises a guide rail (5), and the guide rail (5) comprises a gradually-reducing section (51) and a parallel section (52) which is connected to the gradually-reducing end of the gradually-reducing section (51) and used for containing a guide block (32).

2. The adaptive adjusting structure for charging butt joint according to claim 1, wherein the guide groove (31) is surrounded by a guide plate (311) and side plates (312) connected to two sides of the guide plate (311).

3. A charging docking adaptive adjustment structure according to claim 2, further comprising a base (4), wherein the base (4) comprises a bottom plate (41), and end plates (42) connected to two sides of the bottom plate (41); the first guide structure (3) further comprises a first guide rod (33) penetrating through the side plate (312), and the end part of the first guide rod (33) is connected with an end plate (42); and return springs (34) are symmetrically sleeved on the peripheries of the first guide rods (33) positioned on the two sides of the guide plate (311).

4. The adaptive adjusting structure for charging butt joint according to claim 3, characterized in that the charging pile (1) further comprises a charging base (12), and a substrate (13) slidably connected below the charging base (12); the base plate (13) is placed on the bottom plate (42), waist-shaped holes (131) are symmetrically formed in two sides of the base plate (13), a second guide rod (35) penetrates through the waist-shaped holes (131), and the end portion of the second guide rod (35) is connected with the end plate (42); the first guide rod (33) is parallel to the second guide rod (35).

5. The charging docking self-adaptive adjustment structure according to claim 1, wherein the charging pile (1) further comprises ejector pins (14) symmetrically arranged at the front end of the charging pile.

6. The adaptive adjusting structure for charging butt joint of claim 4, wherein the second guide rod (35) is in clearance fit connection with the kidney-shaped hole (131).