CN215097112U

CN215097112U - Power distribution device, charging device and equipment

Info

Publication number: CN215097112U
Application number: CN202121508926.3U
Authority: CN
Inventors: 孙杰; 杜云鹏; 巩少雄; 贾淑文; 赵启凡
Original assignee: Xian Tgood Intelligent Charging Technology Co Ltd
Current assignee: Xi'an Telai Intelligent Charging Technology Co.,Ltd.
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-12-10
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a power distribution device, charging device and equipment. The utility model provides a second line connection be the first wiring end between the first switch group of adjacent connection, and each second line intersects in the second wiring end, just because such structural arrangement for when power distribution device is in the practical application charging (current input end connects the charging power unit, current output end connects charging terminal), the quantity of the charging power unit that every charging terminal can directly be called increases to some extent, thereby corresponding the switch quantity that has reduced the start, switch control logic has been simplified, and then programming volume has been reduced, the programming degree of difficulty has been reduced, programming efficiency has been improved.

Description

Power distribution device, charging device and equipment

Technical Field

The utility model relates to an electric automobile field of charging especially relates to a power distribution device, charging device and equipment.

Background

Charging stations for electric vehicles are usually provided with a plurality of charging power units for converting ac power supplied from the power grid into dc power, and a charging topology for allocating the charging power units to the charging guns. Currently, a common charging topology is shown in fig. 1 (patent CN202010337478.9 mentions), in fig. 1, the charging topology includes 6 charging power units (P1-P6), 15-pair dc contactors (K1-K15), and 6 charging guns (M1-M6, also called charging terminals), and its operation principle is as follows: and the charging power unit is distributed for the charging gun to use by controlling the opening condition of the direct current contactor.

However, the charging topology as shown in fig. 1 has the following problems: for example, when the charging gun M1 is used, the charging power unit that can be directly called by the charging gun M1 only has P1, P2, P4 and P6, and the charging power units P3 and P5 both need the charging gun M1 to cross over one charging power unit to be called, which results in that when the charging power unit is called by the charging gun M1, the number of the enabled contactors is large, so that the software control logic of the contactors is complex, and further the programming amount of software is large, the programming difficulty is high, and the programming efficiency is low.

Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a power distribution device, charging device and equipment, power distribution device are in the practical application when charging (charging power unit is connected to current input end, and charging terminal is connected to current output end), and the quantity of the charging power unit that every charging terminal can directly be called increases to some extent to corresponding switch quantity that has reduced the starting has simplified the on-off control logic, and then has reduced the programming volume, has reduced the programming degree of difficulty, has improved programming efficiency.

In order to solve the above technical problem, the utility model provides a power distribution device, include:

a plurality of current input terminals;

the first switch group comprises a plurality of groups of first switch units, two groups of first switch units exist, and at least one current input end is connected between the two groups of first switch units;

the number of the first switch groups is at least three, and the first switch groups are sequentially connected to form a closed loop;

second lines, first terminals are arranged between the adjacent first switch groups, each first terminal is connected with the second line, a plurality of the second lines are intersected at the second terminals, and the second terminals are not connected with the first lines;

the second switch group comprises a plurality of groups of second switch units, two groups of second switch units exist, at least one current input end is connected between the two groups of second switch units, at least one second line exists, and at least one group of second switch groups are arranged on the second switch group;

and the current output end is connected with the current input end.

Preferably, the number of the first switch groups is three.

Preferably, there are a plurality of said second lines on which at least one said second set of switches is disposed.

Preferably, there are three of said second lines on which at least one of said second switch sets is disposed.

Preferably, there are two sets of the second switch units in the second switch group, and at least one of the current input terminals is connected between the two sets of the second switch units, and the two sets of the second switch units are connected between the first terminal and the second terminal.

Preferably, each of the second lines is formed by connecting corresponding first and second terminals.

Preferably, among a plurality of the second lines, at least one of the second lines is formed by two lines, a first line is formed by connecting a corresponding first terminal and a second terminal, and a second line is formed by extending the first line along the first terminal.

Preferably, at least one current input end is connected to the second segment of the line, and at least one set of the second switch units is arranged between the current input end and the first terminal.

Preferably, among a plurality of the second lines, at least one of the second lines is formed by three lines, a first line is formed by connecting the corresponding first terminal and the second terminal, a second line is formed by extending the first line along the first terminal, and a third line is formed by extending the first line along the second terminal.

Preferably, at least one current input end is connected to the second segment of circuit, and at least one set of second switch units is arranged between the current input end and the first terminal; and at least one current input end is connected to the third section of circuit, and at least one group of second switch units is arranged between the current input end and the second terminal.

In order to solve the above technical problem, the utility model also provides a charging device, including any kind of above-mentioned power distribution device, still include:

a charging power unit connected with the current input terminal.

In order to solve the above technical problem, the utility model also provides a charging device, including above-mentioned charging device, still include:

the charging terminal is connected with the current output end; all the charging power units correspondingly connected with the current input end of the same switch group form the same power module group.

Preferably, the charging apparatus further includes:

and the current input end is connected with the current output end through the third switching unit.

The utility model provides a power distribution device, include: a plurality of current input terminals; the first switch group comprises a plurality of groups of first switch units, two groups of first switch units exist, and at least one current input end is connected between the two groups of first switch units; the number of the first switch groups is at least three, and the first switch groups are sequentially connected to form a closed-loop first circuit; the first terminals are arranged between the adjacent first switch groups, each first terminal is connected with a second circuit, the second circuits are intersected at the second terminals, and the second terminals are not connected with the first circuits; the second switch group comprises a plurality of groups of second switch units, two groups of second switch units are provided, at least one current input end is connected between the two groups of second switch units, at least one second line is provided, and at least one group of second switch group is arranged on the second switch group; and the current output end is connected with the current input end. It can be seen that, the second lines of the present application are connected to the first terminals between the first switch sets connected adjacently, and each second line intersects with the second terminal, so that due to such a structural arrangement, when the power distribution apparatus is actually applied to charging (the current input end is connected to the charging power unit, and the current output end is connected to the charging terminal), the number of the charging power units that can be directly called by each charging terminal is increased, thereby correspondingly reducing the number of enabled switches, simplifying the switch control logic, further reducing the programming amount, reducing the programming difficulty, and improving the programming efficiency.

The utility model also provides a charging device and equipment have the same beneficial effect with above-mentioned power distribution device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a charging topology in the prior art;

fig. 2 is a schematic structural diagram of a first power distribution apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a second power distribution apparatus according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a third power distribution apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fourth power distribution apparatus according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first charging device according to an embodiment of the present invention;

fig. 7 is an electrical connection schematic diagram of a first charging device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a second charging apparatus provided in an embodiment of the present invention;

fig. 9 is an electrical connection schematic diagram of a second charging device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a charging system according to an embodiment of the present invention.

Detailed Description

The core of the utility model is to provide a power distribution device, charging device and equipment, power distribution device is when the practical application charges (charging power unit is connected to current input end, and charging terminal is connected to current output end), and the quantity of the charging power unit that every charging terminal can directly be called increases to some extent to corresponding switch quantity that has reduced the starting has simplified the on-off control logic, and then has reduced the programming volume, has reduced the programming degree of difficulty, has improved programming efficiency.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a first power distribution apparatus according to an embodiment of the present invention.

The application provides a power distribution apparatus, including:

a plurality of current input terminals A;

a first switch group Z1, wherein the first switch group Z1 comprises a plurality of groups of first switch units U1, and two groups of first switch units U1 are provided, and at least one current input end A is connected between the two groups of first switch units U1;

the number of the first switch groups Z1 is at least three, and the multiple groups of the first switch groups Z1 are sequentially connected to form a first closed-loop circuit;

second lines, wherein first terminals B are arranged between the adjacent first switch groups Z1, each first terminal B is connected with a second line, a plurality of second lines intersect at a second terminal C, and the second terminal C is not connected with the first lines;

a second switch group Z2, the second switch group Z2 including a plurality of groups of second switch units U2, there being two groups of second switch units U2, between which at least one current input terminal a is connected, and there being at least one second line on which at least one group of second switch groups Z2 is disposed;

and the current output end is connected with the current input end A.

Specifically, the power distribution device comprises a plurality of current input ends A and current output ends; the current output end is connected with the current input end A, the current input end A is used for being connected with the charging power unit, and the current output end is used for being connected with the charging terminal.

In the power distribution device, a first switch group Z1 and a second switch group Z2 are also included; the first switch group Z1 comprises a plurality of groups of first switch units U1, and in the first switch group Z1, two groups of first switch units U1 exist, between which at least one current input end a is connected; the second switch group Z2 includes a plurality of groups of second switch units U2, and in the second switch group Z2, there are two groups of second switch units U2, between which at least one current input terminal a is connected.

The number of the first switch groups Z1 is at least three, and the first switch groups Z1 are sequentially connected to form a first circuit of a closed loop. First terminals B are provided between the first switch groups Z1 connected adjacently, each of the first terminals B is connected with a second wiring, a plurality of the second wirings intersect at the second terminal C, and among the plurality of the second wirings, there is at least one second wiring on which at least one second switch group Z2 is provided.

It should be noted that the second terminal C is not connected to the first line, that is, the second terminal C is located outside the first line, which excludes the situation that the second terminal C is directly disposed on the first line; meanwhile, the fact that the second terminal C is not "connected" to the first line means that the second terminal C is not directly connected to the first line, and as shown in fig. 2, the second terminal C is indirectly connected to the first line through the second line and the second switch group Z2, which is the case of "the second terminal C is not connected to the first line" in the present application.

It can be seen that, the second lines of the present application are connected to the first terminals between the first switch sets connected adjacently, and each second line intersects with the second terminal, so that due to such a structural arrangement, when the power distribution apparatus is actually applied to charging (the current input end is connected to the charging power unit, and the current output end is connected to the charging terminal), the number of the charging power units that can be directly called by each charging terminal is increased, thereby correspondingly reducing the number of enabled switches, simplifying the switch control logic, further reducing the programming amount, reducing the programming difficulty, and improving the programming efficiency.

On the basis of the above-described embodiment:

as an alternative embodiment, the number of the first switch group Z1 is three.

Specifically, the number of the first switch groups Z1 in the present application is three, and of course, the number of the first switch groups Z1 in the present application may be more than three, and the present application is not particularly limited herein.

As an alternative embodiment, there are a plurality of second lines on which at least one second switch group Z2 is arranged.

Specifically, when the number of the first switch groups Z1 of the present application is three, the number of the second lines is three. Of the three second lines, there may be only one second line on which at least one second switch group Z2 is provided, as shown in fig. 3; there may also be a plurality of second lines on which at least one second set of switches Z2 (preferred) is arranged.

As an alternative embodiment, there are three second lines on which at least one second group of switches Z2 is arranged.

Specifically, when the number of the second lines of the present application is three, for the case where there are a plurality of second lines, the case where at least one second switch group Z2 is provided thereon is divided into two: 1) of the three second lines, there are only two second lines on which at least one second switch group Z2 is provided, as shown in fig. 4; 2) among the three second lines, there are three second lines on which at least one second switch group Z2 (preferred) is provided, as shown in fig. 2.

As an alternative embodiment, there are two sets of second switch units U2 in the second switch group Z2, between which at least one current input terminal a is connected, and which are connected between the first terminal B and the second terminal C.

Specifically, the second switch group Z2 of the present application includes a plurality of groups of second switch units U2, and in the second switch group Z2, there are two groups of second switch units U2, between which at least one current input terminal a is connected, and which are connected between the first terminal B and the second terminal C.

As an alternative embodiment, each second line is formed by connecting a corresponding first terminal B with a second terminal C.

Specifically, as shown in fig. 2 to 4, each second line of the present application is formed by connecting a corresponding first terminal B and a second terminal C, that is, one of the terminals of each second line is the corresponding first terminal B, and the other terminal is the second terminal C.

As an alternative embodiment, at least one second line among the plurality of second lines is formed by two lines, the first line is formed by connecting the corresponding first terminal B and the second terminal C, and the second line extends from the first line along the first terminal B.

Specifically, as shown in fig. 5, of the three second lines, there are only two second lines, which are composed of two lines, a first line is formed by connecting the corresponding first terminal B and the second terminal C, and a second line extends from the first line along the first terminal B.

It should be noted that "extending" in this embodiment means "extending from the first segment of the line along the first terminal", and the extending direction is not limited as long as it does not intersect with other lines.

As an alternative embodiment, at least one second line is present among the plurality of second lines, and is composed of two lines, at least one current input terminal a is connected to the second line, and at least one set of second switch units U2 is disposed between the current input terminal a and the first terminal B.

Specifically, as shown in fig. 5, among the three second lines, there are only two second lines, which are composed of two segments of lines. On the second section of the line, at least one current input a (for connecting the charging power unit) is connected, and at least one set of second switching units U2 is arranged between the current input a and the first terminal B.

As an alternative embodiment, among the plurality of second lines, there is at least one second line, which is composed of three lines, a first line is formed by connecting the corresponding first terminal B and the second terminal C, a second line extends from the first line along the first terminal B, and a third line extends from the first line along the second terminal C.

Specifically, as shown in fig. 5, among the three second lines, there is only one second line, which is composed of three lines, a first line is formed by connecting corresponding first terminals B and second terminals C, a second line extends from the first line along the first terminals B, and a third line extends from the first line along the second terminals C.

Note that "extending" in the present embodiment does not limit the extending direction as long as it does not intersect with other lines.

As an alternative embodiment, at least one current input terminal a is connected to the second segment of the line, and at least one set of second switch units U2 is arranged between the current input terminal a and the first terminal B; at least one current input end A is connected to the third segment of the circuit, and at least one group of second switch units U2 is arranged between the current input end A and the second terminal C. Specifically, as shown in fig. 5, among the three second lines, there is only one second line consisting of three-segment lines. On the second section of the line, at least one current input a (for connecting the charging power unit) is connected, and at least one set of second switching units U2 is arranged between the current input a and the first terminal B. Similarly, at least one current input a (for connecting the charging power unit) is connected to the third segment of the line, and at least one set of second switching units U2 is disposed between the current input a and the second terminal C.

The present application further provides a charging device, including any one of the above power distribution devices, further including:

and the charging power unit is connected with the current input end A.

Specifically, the charging device of the present application includes a power distribution device and a charging power unit, and the charging power unit is connected with a current input end a in the power distribution device. More specifically, in the power distribution apparatus, each current input terminal a may be connected to one charging power unit, and of course, each current input terminal a may also be connected to a plurality of charging power units or not connected to a charging power unit, and the application is not particularly limited herein.

For the introduction of the power distribution device in the charging device provided in the present application, please refer to the embodiments of the power distribution device described above, which is not described herein again.

The present application further provides a charging apparatus, including above-mentioned charging device, still include:

the charging terminal is connected with the current output end; all the charging power units correspondingly connected with the current input end A of the same switch group form the same power module group.

Specifically, the charging device of the present application includes a charging device and a charging terminal (e.g., a charging gun) connected to a current output terminal within the power distribution device. More specifically, in the power distribution apparatus, each current output terminal may be connected to one charging terminal, or a plurality of current output terminals may be connected to the same charging terminal, and the present application is not particularly limited thereto.

It should be noted that all the charging power units correspondingly connected to the current input terminal a of the same switch group form the same power module group. For example, there are two groups of first switch units U1 in the first switch group Z1, between which at least one current input terminal a is connected, and all charging power units connected to these current input terminals a form the same power module group; two groups of second switch units U2 exist in the second switch group Z2, at least one current input end A is connected between the two groups of second switch units U2, and all charging power units connected with the current input ends A form the same power module group.

As an alternative embodiment, the charging device further comprises:

and a current input terminal A of the third switching unit U3 is connected with a current output terminal through the third switching unit U3.

Further, the charging device of the present application further includes a third switching unit U3, and the current input terminal a is connected to the current output terminal through at least one third switching unit U3.

Specifically, the charging device shown in fig. 6 can be obtained according to the description of the above embodiment, and fig. 7 is an electrical connection schematic diagram of the charging device shown in fig. 6. The charging apparatus includes 6 charging terminals (denoted by "G"), 6 power module groups (denoted by "R"), and 18 switching units (denoted by "K"). It should be noted that each group of switch units includes two switch units, both of which are separately denoted by +, — for example, one switch unit in the first group of switch units K1 is denoted by K1+, and the other switch unit is denoted by K1 (-for other groups of switch units are also denoted by this, and the description of this application is omitted here).

Based on the charging device shown in fig. 6, each charging terminal can directly call 5 power module groups, for example, when the charging terminal G1 is in use, the power module groups that the charging terminal G1 can directly call are R1, R2, R3, R4, and R5, and compared with the charging topology structure of the same 6 guns as shown in fig. 1, the number of charging power units that each charging terminal can directly call in the charging device shown in fig. 6 is increased, so that the number of enabled switches is correspondingly reduced, the switch control logic is simplified, the amount of programming is reduced, the programming difficulty is reduced, and the programming efficiency is improved.

Moreover, the charging topology shown in fig. 1 also has a problem that the charging power unit cannot be called under some conditions, for example, when the charging gun M1 is idle and the charging guns M2-M6 are in use, the charging power unit P1 cannot be called by the charging guns M3 and M5; when the charging guns M1 and M5 are idle and the charging guns M2, M3, M4 and M6 are used, the charging power units P1 and P5 cannot be called by the charging gun M3; when the charging guns M2 and M5 are idle and the charging guns M1, M3, M4 and M6 are used, the charging power unit P2 cannot be called by the charging guns M4 and M6, and the charging power unit P5 cannot be called by the charging guns M1 and M3, which is not favorable for improving the vacancy condition of the charging power unit. However, the power distribution apparatus of the present application improves the charging topology, and obviously improves the vacancy condition of the charging power unit, such as the charging device shown in fig. 6, when the charging terminal G5 is idle and the charging terminals G1, G2, G3, G4, and G6 are in use, the power module group R5 cannot be called by the charging terminal G3 only.

In addition, according to the above description of the embodiments, the charging device shown in fig. 8 can be obtained, and fig. 9 is an electrical connection schematic diagram of the charging device shown in fig. 8. The charging apparatus includes 4 charging terminals (denoted by "M"), 10 power module groups (denoted by "P"), and 20 switching units (denoted by "K").

For any charging device, the switch control strategy is as follows: respectively setting power supply priority of each power module group for each charging terminal; and determining a target power module group distributed to the target terminal from the idle power module groups according to the power requirement of the target terminal (any charging terminal) and the corresponding power supply priority, and connecting the target terminal with the target power module group by controlling the on-off of each switch unit so as to provide the electric energy required by the target terminal.

For the introduction of the charging device in the charging apparatus provided in the present application, please refer to the above-mentioned embodiments of the charging device, which is not described herein again.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a charging system according to an embodiment of the present invention.

The charging system may include a plurality of power units 100 (referred to as the charging power unit), a plurality of charging terminals 200, a power distribution apparatus 300, and a control apparatus 400 for implementing the switching control policy, and may further include a centralized control apparatus 500 integrated with functions of charging control, order management, local billing, uploading to a cloud platform, and the like.

For an introduction of the power distribution apparatus 300 in the charging system provided in the present application, reference is made to the above-mentioned embodiments of the power distribution apparatus, and details of the present application are not repeated herein.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A power distribution apparatus, comprising:

a plurality of current input terminals;

and the current output end is connected with the current input end.

2. The power distribution apparatus of claim 1, wherein the first switch set is three in number.

3. The power distribution apparatus of claim 2, wherein there are a plurality of said second lines on which at least one of said second switch sets is disposed.

4. A power distribution apparatus according to claim 3, wherein there are three said second lines on which at least one said second switch group is disposed.

5. The power distribution apparatus of any of claims 1-4, wherein there are two sets of said second switch units in said second switch set, with at least one of said current inputs connected therebetween, and with both connected between said first terminal and said second terminal.

6. The power distribution apparatus of claim 5, wherein each of the second lines is formed by connecting corresponding first and second terminals.

7. The power distribution apparatus according to claim 5, wherein at least one of the second lines is present among the plurality of second lines, and is composed of two lines, a first line is formed by connecting the corresponding first terminals to the second terminals, and a second line is formed by extending the first line along the first terminals.

8. The power distribution apparatus of claim 7, wherein at least one of the current input terminals is connected to the second segment of the line, and at least one set of the second switching units is provided between the current input terminal and the first terminal.

9. The power distribution apparatus of claim 5 wherein at least one of said second plurality of lines is comprised of three segments, a first segment of said lines being formed by corresponding connection of a first terminal to a second terminal, a second segment of said lines extending from said first segment of said lines along said first terminal, and a third segment of said lines extending from said first segment of said lines along said second terminal.

10. The power distribution apparatus of claim 9, wherein at least one of the current input terminals is connected to the second segment of the line, and at least one set of the second switching units is provided between the current input terminal and the first terminal; and at least one current input end is connected to the third section of circuit, and at least one group of second switch units is arranged between the current input end and the second terminal.

11. A charging apparatus comprising the power distribution apparatus according to any one of claims 1 to 10, further comprising:

a charging power unit connected with the current input terminal.

12. A charging device, comprising the charging apparatus as set forth in claim 11, further comprising:

13. The charging device of claim 12, further comprising: