WO2016201902A1

WO2016201902A1 - Current collection head apparatus

Info

Publication number: WO2016201902A1
Application number: PCT/CN2015/095664
Authority: WO
Inventors: 索建国; 陈敏坚; 孙宁; 王秋红; 郭瑾玉; 张彦林; 林平; 张海丰; 李军
Original assignee: 南车株洲电力机车有限公司
Priority date: 2015-06-16
Filing date: 2015-11-26
Publication date: 2016-12-22
Also published as: CN104859455A; CN104859455B; AT520872B1; AT520872A2; AT520872A5

Abstract

A current collection head apparatus, comprising: a connecting assembly, configured to be connected to a current collection head drive mechanism; a lateral current collection assembly, connected to the connecting assembly by means of a rotary connecting piece, a plurality of transverse electrodes being integrated on one side, and the electrodes being distributed in parallel at intervals in an up-down direction; and a guide assembly, connected to a rotary portion of the rotary connecting piece, located above the connecting assembly and/or the lateral current collection assembly, and provided with a rolling component. The current collection head is small in size, light in weight and flexible in rotation, and can locate current collection accurately, stably and safely, thereby improving the charging performance and guaranteeing normal and safe running of vehicles.

Description

Collecting head device

The present application claims priority to the Chinese Patent Office, filed on Jun. 16, 2015, the entire disclosure of which is hereby incorporated by reference.

Technical field

The invention relates to the field of fast charging power supply technology, in particular to a power collecting head device for rapidly charging an electric vehicle such as an energy storage type electric bus.

Background technique

With the development of society, the development concept of urban rail transit such as energy conservation and environmental protection has been continuously improved, and energy storage type electric bus vehicles have emerged. The so-called energy storage type electric bus vehicles refer to the use of super capacitors to store electric energy as power for traction. The top receiving electrical device is subjected to flow and backflow, and the passenger is quickly charged in the tens of seconds of getting on and off the platform. One charge can ensure that the energy storage electric bus is operated to the next station and then charged. The model has been used more and more.

The electrical receiver is installed on the roof of the energy storage bus, and is a charging and receiving device for the energy storage bus. When the energy storage bus stops at the charging station, the power receiver rises, and the collector head contacts the power supply rail of the charging station to realize charging of the energy storage bus.

The collector head of the energy storage type trolleyless electric bus receiver needs to arrange at least three electrodes of positive, negative and grounding contacts or contact plates. Each charging must correspond to three electrodes of positive, negative and ground on the charging station. However, the positions of the trolley buses are not consistent at each parking position. Therefore, the collector head device must be designed with the deviation of the parking, including the deviation of the lateral displacement of the vehicle, the longitudinal yaw angle of the vehicle, and the slight sway of the vehicle body when getting on and off the passenger.

The conventional collector head device is bulky and has only one degree of rotational freedom. In the case of relatively large parking deviation, it will not be able to ensure that all the electrodes are in good contact. The charging process is prone to sparking and burning the power supply rail and the collector head device. .

Therefore, how to improve the accuracy and stability of the contact between the collector head and the power supply rail is a technical problem that a person skilled in the art needs to solve.

Summary of the invention

It is an object of the invention to provide a current collecting head device. The collecting head is small in size, light in weight and flexible in rotation, and can accurately and stably and stably perform positioning and receiving electricity, thereby improving charging performance and ensuring normal and safe driving of the vehicle.

To achieve the above object, the present invention provides a current collecting head device comprising:

a connecting component for connecting the collector head driving mechanism;

a lateral power receiving component connected to the connecting component through a rotating connector, and a plurality of lateral electrodes are integrated on one side, and the electrodes are arranged in parallel in a manner of being spaced apart from each other;

A guiding assembly is coupled to the rotating portion of the rotary joint and above the connecting assembly and/or the lateral power receiving assembly, and is provided with a rolling member.

Preferably, the connecting component is a spring suspension device, comprising:

a connecting plate having a left shaft hole and a right shaft hole;

a movable bracket connected to the connecting plate by a left support shaft and a right support shaft;

The support spring is disposed between the connecting plate and the movable bracket, one end of which is supported by the connecting plate, and the other end is supported by the movable bracket.

Preferably, a linear bearing is respectively disposed between the left shaft hole and the left support shaft and between the right shaft hole and the right support shaft.

Preferably, the connecting plate is provided with an adjusting screw, and one end of the supporting spring is supported by the adjusting screw.

Preferably, the rotary joint comprises:

a bracket for connecting the connecting component;

a power receiving component mounting plate for mounting the lateral power receiving component;

The universal joint has a fixing portion connected to the bracket, and a universal rotating portion is connected to the power receiving assembly mounting plate.

Preferably, the universal joint is a ball joint moving mechanism.

Preferably, the universal joint comprises a connecting shaft and a universal bearing, one end of the connecting shaft is connected with the bracket, and the other end is connected to the inner ring of the universal bearing through a sleeve, the The outer ring of the bearing is connected to the power receiving component mounting plate.

Preferably, the power receiving component mounting plate is provided with a guiding component mounting plate, and the guiding component is mounted above the guiding component mounting plate.

Preferably, the method further includes an elastic recovery device disposed between the bracket and the power receiving component mounting plate for maintaining a position of the power receiving component mounting plate relative to the bracket.

Preferably, the elastic recovery device comprises:

The first elastic support pin is disposed at a position above the universal joint in a horizontal direction, the fixed end is connected to the bracket, and the telescopic end is supported on the power receiving assembly mounting plate;

a second elastic support pin is disposed at a position below the universal joint in a horizontal direction, and a fixed end is connected to the bracket, and a telescopic end is supported on the power receiving assembly mounting plate;

The third elastic support pin is longitudinally arranged in a left-right direction, and the fixed end is connected to the bracket, and the telescopic end is supported upward on the horizontal support portion corresponding to the power receiving component mounting plate.

Preferably, the guiding assembly comprises a wheel bracket, and the wheel bracket extends outwardly in the circumferential direction with a radial arm, and the ends of the arms are respectively provided with supporting disks, and the top of each of the supporting disks is provided A ball or roller that can roll freely.

Preferably, the lateral power receiving component is provided with an insulating spacer, and each of the electrodes is respectively mounted on the insulating spacer through a buffer at both ends.

Preferably, the buffer comprises a telescopic shaft, an outer casing and a spring elastically connecting the telescopic shaft and the outer casing inside the outer casing, the outer casing or the telescopic shaft connecting the electrodes, and the telescopic shaft or outer casing connecting the insulation Partition.

Preferably, the buffers of the electrodes are connected by a first link and a second link which are symmetrically arranged left and right, and the opposite ends of the first link and the second link are hinged, and the other ends are respectively The corresponding buffer is hinged and the middle portion is hinged to the insulating spacer.

Preferably, the electrode mounting side of the insulating spacer is provided with a lateral transition plate corresponding to each of the electrodes.

According to the present invention, a plurality of electrodes for receiving electricity are integrally mounted on a lateral power receiving assembly in a spaced parallel manner, and a connecting member and a lateral power receiving component are connected by a rotating connecting member, thereby forming a side-by-side receiving Electrical multi-degree of freedom, multi-pole collector head device. In use, the current collecting head device is installed on the upper part of the current receiving device, and is driven by the collecting head driving mechanism, firstly rising approximately vertically until the guiding assembly touches the guiding mechanism such as the guiding plate at the top of the charging station, under the further action of the driving force, The guiding assembly is in full contact with the guiding plate, and then the collecting head is in close contact with the guiding plate and laterally moved until the electrodes of the laterally receiving components are respectively in contact with the charging poles corresponding to the charging station and are closely fitted to achieve a flowable state in the lateral direction. During the movement, the rolling parts of the guiding assembly roll on the guide plate Travel to avoid dry friction and assist in maintaining the position of the collector head so that it can accurately and stably interface with the charging pole. The current collecting head device has large flow guiding capability and reliable insulation performance, and has compact structure, small volume, light weight and flexible rotation, and can accurately and stably and stably perform positioning and receiving electricity, thereby improving charging performance and ensuring normal vehicle. Drive safely.

DRAWINGS

1 is a front elevational view showing one side of an electrode surface of a current collecting head device according to the present invention;

Figure 2 is a left side view of the current collecting head device shown in Figure 1;

Figure 3 is a rear elevational view of the current collecting head device of Figure 1;

Figure 4 is a plan view of the current collecting head device shown in Figure 1;

Figure 5 is a perspective view of the current collecting head device shown in Figure 1 at a rear side view;

Figure 6 is a half cross-sectional view of the spring suspension device shown in Figure 1;

Figure 7 is a right side view of the spring suspension device of Figure 6;

Figure 8 is a half cross-sectional view of the rotary joint shown in Figure 1;

Figure 9 is a right side view of the rotary joint of Figure 8;

Figure 10 is a perspective view of the current collecting head device shown in Figure 1 under a front side view;

Figure 11 is a reference view showing the state of use of the current collecting head device of the present invention.

In the picture:

1. Connection assembly 11. Connection plate 121. Left support shaft 122. Right support shaft 12. Movable bracket 13. Adjustment screw 14. Linear bearing 15. Spring

2. Lateral power receiving components 21. Insulation spacer 22. Buffer 23. Electrode 221. Telescopic shaft 222. Housing 24. Transition plate 25. First link 26. Second link

3. Rotating connector 31. Bracket 32. Connecting shaft 33. Universal bearing 34. Power receiving component mounting plate 35. Bushing 36. Guide assembly mounting plate

4. Guide assembly 41. Roulette bracket 42. Arm 43. Support plate 44. Ball

51. First elastic support pin 52. Second elastic support pin 53. Third elastic support pin

6. Contact rail 7. Collector head 8. Guide plate 9. Vehicle 10. Receiver

detailed description

The present invention will be further described in detail below in conjunction with the drawings and embodiments.

The terms upper, lower, inner and outer are used to establish the positional relationship based on the position shown in the drawing. Depending on the drawing, the corresponding positional relationship may change accordingly. Therefore, it cannot be understood as Absolute limits on the scope of protection.

1 to FIG. 5, FIG. 1 is a front view of the electrode surface side of the current collecting head device provided by the present invention; FIG. 2 is a left side view of the current collecting head device shown in FIG. 1; 4 is a top view of the current collecting head device shown in FIG. 1; and FIG. 5 is a perspective view of the current collecting head device shown in FIG. 1 at a rear side viewing angle.

In a specific embodiment, the collector head device provided by the present invention is mainly composed of a connecting component 1, a lateral power receiving component 2, a rotating connecting component 3, and a guiding component 4, and the parts are sequentially connected by bolts to form a overall.

Wherein, the connecting component 1 is used for mounting the entire collector head device on a driving mechanism of the power receiver (such as a four-bar linkage mechanism), and the lateral power receiving component 2 is connected to the connecting component 1 through the rotating connector 3, and the guiding component 4 It is connected to the rotating portion of the rotary joint 3 and is located above the joint assembly 1 and the lateral power receiving assembly 2, and is provided with a rolling member.

Since the lateral power receiving assembly 2 is also connected to the rotating portion of the rotary joint 3, in operation, the guide assembly 4 rotates together with the lateral power receiving assembly 2 with respect to the joint assembly 1, so that the guide assembly 4 can also be mounted in the lateral direction. The effect of the power receiving unit 2 is substantially the same as that of the rotating portion directly mounted on the rotary joint member 3, and can be determined according to actual needs such as component size and arrangement space.

Please refer to FIG. 6 and FIG. 7. FIG. 6 is a half cross-sectional view of the spring suspension device shown in FIG. 1. FIG. 7 is a right side view of the spring suspension device shown in FIG.

The connecting component 1 is a mounting interface component of the collector head and the power receiver, and is designed in the form of a spring suspension device, which is mainly formed by connecting the connecting plate 11 and the movable bracket 12 through the support shaft.

The connecting plate 11 is provided with a bolt hole for connecting the collector head driving mechanism, and one side facing the electrode direction is provided with a longitudinal left sleeve and a right sleeve, and the left support shaft 121 and the right support shaft 122 of the movable bracket 12 respectively Installed in the left sleeve and the right sleeve of the connecting plate 11, both ends of each support shaft and the movable bracket 12 are fixed by a lock nut, between the left shaft hole and the left support shaft, and between the right shaft hole and the right support shaft The linear bearing 14 is nested respectively, so that the movable bracket 12 and the connecting plate 11 are vertically slidably connected, and the movable bracket 12 is movable relative to the connecting plate 11 in the axial direction of the supporting shaft.

A cylindrical compression spring 15 is further disposed between the connecting plate 11 and the movable bracket 12. One end of the spring 15 acts on the adjusting screw 13 on the connecting plate 11, and the other end acts on the movable bracket 12. The mounting height of the adjusting screw 13 can be performed. Adjusting to provide a suitable spring force, through the internal spring 15, can provide a certain buffer when the collector head rises and collides with the charging station ceiling to avoid damage to the collector head due to excessive impact force.

Please refer to FIG. 8 and FIG. 9. FIG. 8 is a half cross-sectional view of the rotary joint shown in FIG. 1. FIG. 9 is a right side view of the rotary joint shown in FIG.

The function of the rotary joint 3 is to enable the lateral power receiving assembly 2 to have a multi-directional rotational freedom, which employs a universal joint joint mechanism and is provided with a spring recovery device.

Specifically, the rotary joint 3 is mainly connected by a bracket 31, a connecting shaft 32, a universal bearing 33, a power receiving assembly mounting plate 34, and the like. One end of the connecting shaft 32 is threaded, and is connected to the bracket 21, and is tightly mounted. The nut is locked, and the other end is provided with a step, and is connected to the inner ring of the universal bearing 33 through the sleeve 35. The outer ring of the universal bearing 33 is connected to the power receiving assembly mounting plate 34 by bolts.

The guide assembly 4 is designed in the form of a disc, and the disc holder 41 has six radial arms 42 extending outward in the circumferential direction. The ends of the arms 42 are respectively provided with support discs 43. The tops of the support discs 43 are upwardly arched. Curved and mounted at the highest center position with freely rolling balls 44 (or rollers), the middle of the top of the power receiving assembly plate 34 is bolted to a guide assembly that extends rearwardly in cantilever form The plate 36, the wheel support 41 is mounted above the guide assembly mounting plate 36. On the one hand, the wheel can define the height of the power receiving electrode by cooperation with the ceiling, and on the other hand, the ball can be slid toward the charging pole along the ceiling.

The bracket 31 is further provided with a spring recovery device, wherein the first elastic support pin 51 is arranged horizontally in a horizontal direction above the universal bearing, the fixed end is connected to the bracket 31, and the telescopic end is supported on the power receiving assembly mounting plate 34; The second elastic support pin 52 is disposed at a position below the universal bearing member in the horizontal direction, and the fixed end is connected to the bracket 31, and the telescopic end is supported on the power receiving assembly mounting plate 34; the third elastic supporting pin 53 is vertically arranged in the left and right directions, The fixed end is connected to the bracket 31, and the telescopic end is supported upward on a horizontal support portion corresponding to both sides of the guide assembly mounting plate 36.

The function of the spring recovery device is to enable the lateral power receiving component 2 to be restored when the wheel is not in contact with the charging station ceiling and the lateral power receiving component 2 is not in contact with the charging pole, that is, when the lateral power receiving component 2 is not subjected to an external force. To the initial position of the bracket 31.

The design of the universal joint with the universal joint ensures that the electrode has multiple degrees of freedom, so that the electrode and the charging pole are more stable, the flow quality is higher, and the spring recovery device makes the collector head inoperative. It always stays in the initial state, making up for the shortcomings of the universal joint.

Please refer to FIG. 10 together. FIG. 10 is a perspective view of the current collecting head device shown in FIG. 1 under the front side viewing angle.

As shown in the figure, the lateral power receiving component 2 is mainly composed of an insulating spacer 21, a buffer 22, and an electrode 23, and is a component that contacts the charging pole and transmits a current, and is connected between the rotating connector 3. The insulating partition 21 ensures the insulation performance of the power receiver and the energy storage bus body. The insulating partition 21 is pre-embedded with a screw sleeve for fixing with the power receiving assembly mounting plate 34 of the rotary joint 3 by bolting.

The number of electrodes 23 is four, which are positive pole, negative pole, grounding pole and signal pole, wherein the signal pole is an optional configuration, and the other three are extremely necessary configuration. When working, the charging current flows from the positive pole, through the high voltage cable, the bus storage. The power source can be discharged from the negative electrode to form a charging circuit. The grounding pole is connected with the frame structure of the power receiver and the body of the energy storage bus to provide grounding protection.

The electrode 23 is made of a conductor material, and the four lateral electrodes are integrated together on the insulating spacer 21, and the plates on the outer side of the insulating spacer 21 are sequentially arranged in parallel from top to bottom, and the lengths of the electrodes are equal, and the contact faces are located in the same vertical direction. In the plane, on the side in the longitudinal direction of the insulating spacer 21, the electrode 23 is separated from the insulating spacer 21 by a certain distance.

Two buffers 22 are mounted between each of the electrodes 23 and the insulating spacer 21 to provide a certain buffer when the electrodes 23 are in contact with the charging poles. The buffer 22 includes a telescopic shaft 221, a housing 222, and an elastic connection inside the housing 222. The shaft 221 and the spring of the outer casing 222 (not shown in the figure) are connected to the back surface of the electrode 23, and the telescopic shaft 221 is connected to the insulating spacer 21.

Four insulating plates 24 are mounted on the insulating partition 21 by bolting at a certain distance. The bumper 22 is bolted to the transition plate 24, and the two buffers of each electrode are connected by two connecting rods. Together, wherein the opposite ends of the first link 25 and the second link 26 are hinged, the other ends are respectively hinged with the corresponding buffers 22, the middle portion is hinged with the transition plate 24, and the two buffers 22 are connected by the connecting rods. The mechanisms are connected together to achieve synchronous buffering and to avoid stuck faults that may be caused by uneven force.

The use of the insulating spacer 21 solves the problem of electrical insulation of the collector head, and makes the structure simpler. The size of the collector head can be made smaller and lighter, and the collector head adopts a spring shock absorbing structure at two places. Avoiding structural damage caused by impact will greatly improve reliability and service life.

Please refer to FIG. 11. FIG. 11 is a reference diagram of a use state of the current collecting head device according to the present invention.

In actual use, the contact rail 6 is mounted at the charging location by a bracket (or other means), usually a bus stop, and is located at the side above the vehicle, and the electrodes are arranged in a manner consistent with the arrangement of the electrodes of the collector head 7. The two are in parallel contact, and the length of each electrode of the contact rail 6 is greater than the length of the collector head electrode, so that the collector head can contact the contact rail 6 in a large area before and after the vehicle enters the station, and the width of each electrode of the contact rail 6 It can be slightly wider than the width of the collector head electrode to improve the stability of the flow.

The guide plate 8 (or the guide rail, the ceiling) is horizontally mounted above the contact rail 6 in a manner perpendicular to the side of the contact rail for limiting the vertical freedom of the collector head after it is raised to a certain height so that it does not continue The upward movement is performed, and the lateral movement is changed to the outside. Specifically, a flat steel plate or the like can be used, and the electric receiver 10 of the vehicle 9 is mounted on the roof in a manner perpendicular to the longitudinal direction of the vehicle body, and the collector head 7 can be driven to perform the lifting movement and the lateral direction. motion.

When the vehicle 9 is in the station and the power collector collector head 7 needs to be in contact with the contact rail 6, the collector head 7 is raised in an approximately vertical manner in a vertical plane perpendicular to the longitudinal direction of the vehicle body.

When the collector head 7 is raised to a height of about 1500 mm, the wheel of the collector head 7 touches the guide plate 8 of the charging station, and no longer rises upward under the restriction of the guide plate 8, and under the further action of the driving force, the wheel The six balls 44 on the disc are in full contact with the guide plate 8, and then the collector head 7 is moved laterally against the guide plate 8 in a vertical plane perpendicular to the longitudinal direction of the vehicle body, and the movable distance is 0-700 mm. Between the two, until it comes into contact with the contact rail 6 and fits snugly to reach a flowable state.

The above-mentioned embodiments are only a few preferred embodiments of the present invention, and are not limited thereto. On this basis, targeted adjustments can be made according to actual needs, thereby obtaining different implementation manners. For example, the swivel connector employs other forms of ball joint motion mechanisms; alternatively, the guide assembly is designed to resemble other shapes of the wheel disc and the like. Since there are many ways to implement, there is no longer an example here.

The current collecting head device provided by the present invention has been described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples. The description of the above embodiments is only for the purpose of understanding the core concepts of the present invention. It should be noted that those skilled in the art can also make several improvements to the present invention without departing from the principles of the present invention. Modifications, such modifications and modifications are also intended to fall within the scope of the appended claims.

Claims

A collector head device, comprising:

a connecting component for connecting the collector head driving mechanism;

a lateral power receiving component connected to the connecting component through a rotating connector, and a plurality of lateral electrodes are integrated on one side, and the electrodes are arranged in parallel in a manner of being spaced apart from each other;

A guiding assembly is coupled to the rotating portion of the rotary joint and above the connecting assembly and/or the lateral power receiving assembly, and is provided with a rolling member.
The current collecting head device according to claim 1, wherein the connecting component is a spring suspension device, comprising:

a connecting plate having a left shaft hole and a right shaft hole;

a movable bracket connected to the connecting plate by a left support shaft and a right support shaft;

The support spring is disposed between the connecting plate and the movable bracket, one end of which is supported by the connecting plate, and the other end is supported by the movable bracket.
The current collecting head device according to claim 2, wherein a linear bearing is disposed between the left shaft hole and the left support shaft and between the right shaft hole and the right support shaft.
The current collecting head device according to claim 2 or 3, wherein the connecting plate is provided with an adjusting screw, and one end of the supporting spring is supported by the adjusting screw.
The current collecting head device according to claim 1, wherein the rotary joint comprises:

a bracket for connecting the connecting component;

a power receiving component mounting plate for mounting the lateral power receiving component;

The universal joint has a fixing portion connected to the bracket, and a universal rotating portion is connected to the power receiving assembly mounting plate.
The current collecting head device according to claim 5, wherein the universal joint member is a ball joint moving mechanism.
A current collecting head device according to claim 6, wherein said universal joint member includes a connecting shaft and a universal bearing, one end of said connecting shaft is connected to said bracket, and the other end is passed through a bushing and a seat. The inner ring of the universal bearing is connected, and the outer ring of the universal bearing is connected to the power receiving component mounting plate.
A current collecting head device according to claim 5, wherein said power receiving unit The mounting plate is provided with a guiding assembly mounting plate, and the guiding assembly is mounted above the guiding assembly mounting plate.
The current collecting head device according to any one of claims 5 to 8, further comprising an elastic recovery device disposed between the bracket and the power receiving component mounting plate for holding the power receiving component The position of the plate relative to the bracket.
A current collecting head device according to claim 9, wherein said elastic recovery means comprises:

The first elastic support pin is disposed at a position above the universal joint in a horizontal direction, the fixed end is connected to the bracket, and the telescopic end is supported on the power receiving assembly mounting plate;

a second elastic support pin is disposed at a position below the universal joint in a horizontal direction, and a fixed end is connected to the bracket, and a telescopic end is supported on the power receiving assembly mounting plate;

The third elastic support pin is longitudinally arranged in a left-right direction, and the fixed end is connected to the bracket, and the telescopic end is supported upward on the horizontal support portion corresponding to the power receiving component mounting plate.
A current collecting head device according to claim 1, 2, 3, 5, 6, 7, or 8, wherein said guide assembly comprises a wheel bracket, said wheel bracket extending outward in a circumferential direction To the arms, the ends of the arms are respectively provided with support disks, and the tops of the support disks are provided with balls or rollers that can freely roll.
The current collecting head device according to claim 1, 2, 3, 5, 6, 7, or 8, wherein the lateral power receiving component is provided with an insulating spacer, and each of the electrodes is buffered at both ends The device is mounted to the insulating spacer.
A current collecting head device according to claim 12, wherein said damper comprises a telescopic shaft, a casing, and a spring that elastically connects said telescopic shaft and said casing inside said casing, said casing or telescopic shaft connection In the electrode, the telescopic shaft or outer casing is connected to the insulating spacer.
The current collecting head device according to claim 12, wherein the buffers of the electrodes are connected by a first link and a second link which are symmetrically arranged left and right, the first link and the first link The opposite ends of the two links are hinged, the other ends are respectively hinged with corresponding buffers, and the middle portion is hinged with the insulating spacer.
The current collecting head device according to claim 12, wherein the electrode mounting side of the insulating spacer is provided with a lateral transition plate corresponding to each of the electrodes.