CN218631703U - Breaking unit and electrical apparatus comprising a rechargeable battery pack - Google Patents
Breaking unit and electrical apparatus comprising a rechargeable battery pack Download PDFInfo
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- CN218631703U CN218631703U CN202222697091.1U CN202222697091U CN218631703U CN 218631703 U CN218631703 U CN 218631703U CN 202222697091 U CN202222697091 U CN 202222697091U CN 218631703 U CN218631703 U CN 218631703U
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Abstract
A breaking unit and an electric apparatus including a rechargeable battery pack, the breaking unit including: a housing; the main charging module comprises a main charging shaft, a main charging contact and a main charging static contact, wherein the main charging static contact is fixedly arranged in the shell, the main charging contact is fixedly arranged on the main charging shaft and can move between an open position and a closed position under the driving of the main charging shaft, the main charging contact is separated from the main charging static contact at the open position, and the main charging contact is contacted with the main charging static contact at the closed position so as to close a main charging loop; the pre-charging module comprises a pre-charging shaft, a pre-charging moving contact, a pre-charging static contact and a resistor, wherein the pre-charging static contact is fixedly arranged in the shell, the pre-charging shaft can be driven independently of the main charging shaft, the pre-charging moving contact is fixedly arranged on the pre-charging shaft and can move between an open position and a closed position under the driving of the pre-charging shaft, the pre-charging moving contact is separated from the pre-charging static contact at the open position, and the pre-charging moving contact is contacted with the pre-charging static contact at the closed position so as to close a pre-charging loop.
Description
Technical Field
The utility model relates to a divide disconnected unit and contain electrical equipment of rechargeable battery group.
Background
In energy storage application scenarios such as an energy storage power station, two charging loops are usually arranged in parallel for charging a battery pack. One of them is connected with a larger resistor in series so as to reduce the current after being switched on, and is called as 'pre-charging'; the other is a normal loop, and the rated current during normal charging is called as 'main charging' after the loop is switched on.
In the existing solution, a general-purpose isolating switch, a contactor and a control circuit are usually used to realize the above functions in a combined manner, and the wiring is complicated and the maintainability is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks and deficiencies, it is an object of the present invention to at least solve the above-mentioned problems of the prior art.
The utility model provides a divide disconnected unit is applicable to the electrical equipment who contains rechargeable battery group, include: a housing; the main charging module comprises a main charging shaft, a main charging contact and a main charging static contact, wherein the main charging static contact is fixedly arranged in the shell, the main charging contact is fixedly arranged on the main charging shaft and can move between an open position and a closed position under the driving of the main charging shaft, the main charging contact is separated from the main charging static contact at the open position, and the main charging contact is contacted with the main charging static contact at the closed position so as to close a main charging loop; the pre-charging module comprises a pre-charging shaft, a pre-charging moving contact, a pre-charging static contact and a resistor, wherein the pre-charging static contact is fixedly arranged in the shell, the pre-charging shaft can be driven independently of the main charging shaft, the pre-charging moving contact is fixedly arranged on the pre-charging shaft and can move between an open position and a closed position under the driving of the pre-charging shaft, the pre-charging moving contact is separated from the pre-charging static contact at the open position, the pre-charging moving contact is contacted with the pre-charging static contact at the closed position to close a pre-charging circuit,
when the battery pack of the energy storage power station needs to be charged, the pre-charging shaft is configured to drive the pre-charging contact to move from the open position to the closed position so as to close the pre-charging loop, and after a preset time, the main charging shaft drives the main charging contact to move from the open position to the closed position so as to close the main charging loop.
Advantageously, the pre-charge shaft moves the pre-charge contacts from the closed position to the open position after the main charge shaft moves the main charge contacts to the closed position.
Advantageously, the main charging stationary contact comprises an inlet side main charging stationary contact and an outlet side main charging stationary contact, and the main charging shaft is pivotably mounted in the housing such that the main charging stationary contact pivots between an off position and a moving position to be separated from or in contact with the inlet side main charging stationary contact and the outlet side main charging stationary contact.
Advantageously, the pre-charging static contact comprises an inlet-side pre-charging static contact and an outlet-side pre-charging static contact, and the pre-charging shaft is pivotally mounted in the housing, so that the pre-charging contact pivots between an off position and a moving position to be separated from or in contact with the inlet-side pre-charging static contact and the outlet-side pre-charging static contact.
Advantageously, the outlet side pre-charging stationary contact is connected to the outlet side main pre-charging stationary contact via a conductive connector.
Advantageously, the inlet side pre-charging static contact is connected to the inlet side main pre-charging static contact via another conductive connector.
Advantageously, a main charging microswitch is further included, mounted within the housing, for indicating whether the main charging circuit is closed.
Advantageously, the main charging shaft is provided with a protrusion, and the main charging transmission member is pivotally arranged in the housing, and when the main charging shaft drives the main charging contact to rotate from the off position to the on position, the protrusion can press against one end of the main charging transmission member, so that the main charging transmission member pivots around the pivot center thereof to make the other end of the main charging transmission member press against the main charging microswitch, thereby triggering the main charging microswitch; when the main charging shaft drives the main charging contact to rotate from the closed position to the open position, the protrusion is separated from the pressing on one end of the main charging transmission member, so that the main charging transmission member pivots around the pivot center of the main charging transmission member to enable the other end of the main charging transmission member to be separated from the pressing on the main charging microswitch, and the main charging microswitch is disconnected.
Advantageously, a pre-charge micro-switch is further included, mounted within the housing, for indicating whether the pre-charge circuit is closed.
Advantageously, the pre-charging shaft is provided with a protrusion, and the pre-charging transmission member is pivotally arranged in the housing, and when the pre-charging shaft drives the pre-charging moving contact to rotate from the open position to the closed position, the protrusion can press against one end of the pre-charging transmission member, so that the pre-charging transmission member pivots around the pivot center thereof to make the other end of the pre-charging transmission member press against the pre-charging microswitch, thereby triggering the pre-charging microswitch; when the pre-charging shaft drives the pre-charging moving contact to rotate from the closed position to the open position, the protrusion is separated from abutting against one end of the pre-charging transmission member, so that the pre-charging transmission member pivots around the pivot center of the pre-charging transmission member to enable the other end of the pre-charging transmission member to be separated from abutting against the pre-charging microswitch, and the pre-charging microswitch is disconnected.
The utility model also provides an electrical equipment who contains rechargeable battery group, it includes as above disconnected unit.
Advantageously, the electrical device is an energy storage power station.
Drawings
The above and other features and advantages of exemplary embodiments of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, which are for illustrative purposes only and do not limit the scope of the present invention in any way, wherein:
fig. 1 shows an internal perspective view of a breaking unit according to the present invention.
Fig. 2 shows a plan view of a pre-charge module of a breaking unit according to the present invention.
Fig. 3 shows a plan view of a breaking unit according to the invention.
Detailed Description
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The foregoing and other features, aspects and utilities of the present disclosure will be apparent from the following detailed description of the embodiments when read in conjunction with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Therefore, the directional terminology used is intended to be illustrative and not restrictive, and furthermore, like reference numerals designate like elements throughout the embodiments.
Fig. 1 shows an inner perspective view of a breaking unit. As shown in fig. 1, the breaking unit includes a housing 1, and a main charging module 2 and a pre-charging module 3 disposed in the housing. The main charging module 2 comprises a main charging shaft 21, a main charging contact 22 and a main charging static contact, the main charging static contact is fixedly installed in the housing, the main charging contact 22 is fixedly installed on the main charging shaft 21, and the main charging contact can be driven by the main charging shaft 21 to move between an open position separated from the main charging static contact and a closed position contacted with the main charging static contact. In this example, the main charging shaft 21 is pivotally mounted within the housing such that the main charging contact 22 pivots between an open position and a closed position, but those skilled in the art will appreciate that the present application is not limited to a pivoting main charging shaft.
The pre-charging module 3 comprises a pre-charging shaft 31, a pre-charging contact 32 and a pre-charging static contact. The pre-charging fixed contact is fixedly arranged in the shell, the pre-charging shaft 31 can be driven independently of the main charging shaft 21, and the pre-charging contact 32 is fixedly arranged on the pre-charging shaft 31 and can move between an open position separated from the pre-charging fixed contact and a closed position contacted with the pre-charging fixed contact under the driving of the pre-charging shaft 31. The pre-charge module 3 further comprises a resistor (not shown) which is well known to the person skilled in the art and the size of which may also be chosen on a case-by-case basis. In this example, the pre-charge shaft 31 is pivotally mounted within the housing such that the pre-charge contacts 32 pivot between an open position and a closed position, but those skilled in the art will appreciate that the present application is not limited to a pivoting pre-charge shaft.
When an electrical device (such as an energy storage power station) including a rechargeable battery pack needs to charge the battery pack, the pre-charging shaft 31 is firstly driven to drive the pre-charging contact 32 to reach a closed position where the pre-charging contact contacts with the pre-charging contact so as to close a pre-charging loop, and at the moment, the current for charging the battery pack cannot be too large due to the existence of the resistor. After a period of time, the main charging shaft 21 is driven to drive the main charging contact 22 to reach a closed position where the main charging contact is in contact with the main charging contact, so as to close the main charging loop, and at this time, also due to the existence of the resistor, a large part of current flows to the battery pack through the main charging loop. Then, the precharge shaft 31 can be driven again to move the precharge contactor 32 from the closed position to the open position.
In the above description, it is described that the pre-charging shaft 31 is driven first and then the main charging shaft 21 is driven, and how to drive the pre-charging shaft 31 first and then the main charging shaft 21 is not the focus of the present application, and therefore, the description is omitted here. A person skilled in the art can conceive of various suitable drive mechanisms to achieve the above-mentioned driving based on the inventive concept of the present application, for example, the drive mechanism may comprise a driving member for driving the pre-charging shaft 31 and the main charging shaft 21, respectively, by driving the pre-charging shaft 31 and the main charging shaft 21 in sequence. Alternatively, the drive mechanism may comprise a drive member which drives both the pre-charge shaft 31 and the main charge shaft 21, and a delay means which prevents the main charge shaft from being driven immediately when the drive member is rotated, but which does not drive the main charge shaft until a certain time has elapsed, such delay means being implemented by a "lost motion" or "spring" as is commonly used in the art. In short, the specific form of the driving mechanism can be selected as needed as long as the driving mechanism can achieve the driving of the pre-charging shaft 31 first and then the main charging shaft 21.
In this example, the main charging static contact includes an inlet side main charging static contact 23 and an outlet side main charging static contact 24, and the pre-charging static contact includes an inlet side pre-charging static contact 33 and an outlet side pre-charging static contact 34. In this example, the outlet-side pre-charging static contact 34 is connected to the outlet-side main charging static contact 24 through a conductive connector 38 located in the housing 1, so as to short-circuit the outlet-side pre-charging static contact 34 with the outlet-side main charging static contact. In addition, the inlet side pre-charging stationary contact 33 may also be connected to the inlet side main charging stationary contact 23 via another conductive connecting component (not shown) located in the housing 1, so as to short-circuit the inlet side pre-charging stationary contact 33 with the inlet side main charging stationary contact 23. However, it should be understood by those skilled in the art that, in addition to the conductive connector for shorting the inlet-side pre-charging static contact and the inlet-side main charging static contact and/or shorting the outlet-side pre-charging static contact and the outlet-side main charging static contact in the housing 1, similar conductive connectors may be used for shorting outside the housing 1, and the specific embodiments are well known to those skilled in the art and therefore will not be described herein in detail.
The pre-charge module also includes a pre-charge micro-switch 35, shown in fig. 2, mounted within the housing for indicating whether the pre-charge circuit is closed. Specifically, the protrusion 37 is disposed on the pre-charging shaft 31, and a pre-charging transmission member 36 is pivotally disposed in the housing, when the pre-charging shaft 31 drives the pre-charging contact 32 to rotate from the open position to the closed position, the protrusion 37 can press against one end of the pre-charging transmission member 36, so that the pre-charging transmission member pivots around the pivot center O1 thereof to make the other end of the pre-charging transmission member press against the pre-charging microswitch, thereby triggering the pre-charging microswitch. When the pre-charge shaft 31 rotates the pre-charge contact 32 from the closed position to the open position, the protrusion 37 disengages from the pressing against one end of the pre-charge transmission member 36, so that the pre-charge transmission member 36 pivots about its pivot center to disengage the other end of the pre-charge transmission member 36 from the pressing against the pre-charge microswitch, thereby disconnecting the pre-charge microswitch. The pre-charge transmission 36 operates like a "lever".
By adjusting the position of the pivot center O1 of the pre-charging transmission member 37, the lever ratio can be adjusted, and further, the effective closing position of different pre-charging moving contacts and the contact interval (OP value) of different pre-charging micro-switches can be matched.
Similarly, the primary charging module also includes a primary charging microswitch 25 mounted within the housing for indicating whether the primary charging circuit is closed. As shown in fig. 3, the main charging shaft 21 is provided with a protrusion 27, and the main charging transmission member 26 is pivotally disposed in the housing, when the main charging shaft 21 drives the main charging contact 22 to rotate from the open position to the closed position, the protrusion 27 can press against one end of the main charging transmission member 26, so that the main charging transmission member 26 pivots around the pivot center O2 thereof to make the other end of the main charging transmission member 26 press against the main charging microswitch, thereby triggering the main charging microswitch. When the main charging shaft 21 drives the main charging contact 22 to rotate from the closed position to the open position, the protrusion 27 disengages from the abutting against one end of the main charging transmission member, so that the main charging transmission member pivots around the pivot center thereof to disengage the other end of the main charging transmission member from the abutting against the main charging microswitch, thereby disconnecting the main charging microswitch.
By adjusting the position of the pivot center O2 of the main charging transmission member 27, the lever ratio can be adjusted, and further, the effective switching-on positions of different main charging contacts and the contact intervals (OP values) of different main charging micro switches can be matched.
Thus, by providing a breaking unit with a pre-charging module (pre-charging function), the number of components of the energy storage power station is reduced, the cost is saved, and the wiring is simplified.
Although the present invention has been described in the specification and illustrated in the drawings with reference to various embodiments, it will be understood by those skilled in the art that the above embodiments are merely preferred embodiments, and that certain technical features in the embodiments may not be necessary to solve specific technical problems, so that these technical features may not be included or omitted without affecting the solution of the technical problems or the formation of the technical solutions; furthermore, the features, elements, and/or functions of one embodiment may be combined, coupled, or coordinated with the features, elements, and/or functions of one or more other embodiments as appropriate, unless the combination, coupling, or coordination is clearly not practical.
Claims (12)
1. A breaking unit adapted to an electrical apparatus containing a rechargeable battery pack, the breaking unit comprising:
a housing;
the main charging module comprises a main charging shaft, a main charging contact and a main charging static contact, the main charging static contact is fixedly arranged in the shell, the main charging contact is fixedly arranged on the main charging shaft and can move between an open position and a closed position under the driving of the main charging shaft, the main charging contact is separated from the main charging static contact at the open position, and the main charging contact is contacted with the main charging static contact at the closed position so as to close a main charging loop;
the pre-charging module comprises a pre-charging shaft, a pre-charging moving contact, a pre-charging static contact and a resistor, wherein the pre-charging static contact is fixedly arranged in the shell, the pre-charging shaft can be driven independently of the main charging shaft, the pre-charging moving contact is fixedly arranged on the pre-charging shaft and can move between an open position and a closed position under the driving of the pre-charging shaft, the pre-charging moving contact is separated from the pre-charging static contact at the open position, the pre-charging moving contact is contacted with the pre-charging static contact at the closed position to close a pre-charging circuit,
when the battery pack of the electrical equipment needs to be charged, the pre-charging shaft is configured to drive the pre-charging contact to move from the open position to the closed position so as to close the pre-charging loop, and after a preset time, the main charging shaft drives the main charging contact to move from the open position to the closed position so as to close the main charging loop.
2. The breaking unit of claim 1, wherein the pre-charge shaft moves the pre-charge contact from the closed position to the open position after the main charge shaft moves the main charge contact to the closed position.
3. The breaking unit of claim 1, wherein the main charging stationary contact comprises an inlet side main charging stationary contact and an outlet side main charging stationary contact, and the main charging shaft is pivotally mounted in the housing such that the main charging contact pivots between an off position and a moving position to be separated from or in contact with the inlet side main charging stationary contact and the outlet side main charging stationary contact.
4. The breaking unit of claim 3, wherein the pre-charging stationary contact comprises an inlet side pre-charging stationary contact and an outlet side pre-charging stationary contact, and the pre-charging shaft is pivotally mounted within the housing such that the pre-charging stationary contact pivots between an off position and a moving position to separate from or contact the inlet side pre-charging stationary contact and the outlet side pre-charging stationary contact.
5. The breaking unit of claim 4, wherein the outlet side pre-charging stationary contact is connected to the outlet side main charging stationary contact via a conductive connector.
6. The breaking unit of claim 4, wherein the inlet side pre-charging stationary contact is connected to an inlet side main charging stationary contact via another conductive connector.
7. The breaking unit of claim 3, further comprising a main charging microswitch mounted in the housing for indicating whether the main charging circuit is closed.
8. The breaking unit of claim 7, wherein the main charging shaft is provided with a protrusion, and the main charging transmission member is pivotably disposed in the housing, and when the main charging shaft rotates the main charging contact from the open position to the closed position, the protrusion can press against one end of the main charging transmission member, so that the main charging transmission member pivots about its pivot center such that the other end of the main charging transmission member presses against the main charging microswitch, thereby triggering the main charging microswitch; when the main charging shaft drives the main charging contact to rotate from the closed position to the open position, the protrusion is separated from the pressing on one end of the main charging transmission member, so that the main charging transmission member pivots around the pivot center of the main charging transmission member to enable the other end of the main charging transmission member to be separated from the pressing on the main charging microswitch, and the main charging microswitch is disconnected.
9. The breaking unit of claim 4, further comprising a pre-charge microswitch mounted within the housing for indicating whether the pre-charge circuit is closed.
10. A breaking unit as claimed in claim 9, wherein the pre-charge shaft is provided with a protrusion and the pre-charge transmission member is pivotably arranged in the housing, the protrusion being capable of pressing against one end of the pre-charge transmission member when the pre-charge shaft rotates the pre-charge contact from the open position to the closed position, whereby the pre-charge transmission member pivots about its pivot centre such that the other end of the pre-charge transmission member presses against the pre-charge microswitch, thereby triggering the pre-charge microswitch; when the pre-charging shaft drives the pre-charging moving contact to rotate from the closed position to the open position, the protrusion breaks away from the abutting pressure on one end of the pre-charging transmission member, so that the pre-charging transmission member pivots around the pivot center of the pre-charging transmission member to enable the other end of the pre-charging transmission member to break away from the abutting pressure on the pre-charging microswitch, and the pre-charging microswitch is disconnected.
11. An electrical apparatus comprising a rechargeable battery pack, characterized in that the electrical apparatus comprises a breaking unit according to any one of claims 1 to 10.
12. The electrical equipment of claim 11, wherein the electrical equipment is an energy storage power station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222697091.1U CN218631703U (en) | 2022-10-13 | 2022-10-13 | Breaking unit and electrical apparatus comprising a rechargeable battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222697091.1U CN218631703U (en) | 2022-10-13 | 2022-10-13 | Breaking unit and electrical apparatus comprising a rechargeable battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218631703U true CN218631703U (en) | 2023-03-14 |
Family
ID=85470732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222697091.1U Active CN218631703U (en) | 2022-10-13 | 2022-10-13 | Breaking unit and electrical apparatus comprising a rechargeable battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218631703U (en) |
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2022
- 2022-10-13 CN CN202222697091.1U patent/CN218631703U/en active Active
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