CN218548861U - Connecting device of power conversion module and power supply system - Google Patents
Connecting device of power conversion module and power supply system Download PDFInfo
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- CN218548861U CN218548861U CN202222656285.7U CN202222656285U CN218548861U CN 218548861 U CN218548861 U CN 218548861U CN 202222656285 U CN202222656285 U CN 202222656285U CN 218548861 U CN218548861 U CN 218548861U
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Abstract
The application provides a connecting device of a power conversion module and a power supply system, wherein the connecting device comprises a first connecting module, a second connecting module, an insulating assembly, a plurality of connecting conductors and a plurality of groups of fuses; one side of the first connecting module is respectively connected with input or output ports with different potentials of first external equipment through a plurality of groups of fuses, and the other end of the first connecting module is plugged with the second connecting module; one ends of the connecting conductors are respectively connected with the multiple groups of fuses through the first connecting module, and the other ends of the connecting conductors are connected with input or output ports of different potentials of second external equipment through the second connecting module; the insulating assembly is arranged between the connecting conductors and the fuses and used for insulating and dividing the connecting conductors and the fuses with different electric potentials.
Description
Technical Field
The present disclosure relates to power supply systems, and more particularly, to a connecting device for a power conversion module and a power supply system.
Background
In some high-power supply systems, a modular structure is often adopted, that is, a plurality of power change modules are connected in parallel to provide larger power output. The power conversion module is often cooled by a fan, and foreign matters such as dust, swarf, compound particles, condensation and the like are deposited in the power conversion module, and the foreign matters can cause the power conversion module to be out of order. The parallel system is generally provided with a redundancy design, and a single power conversion module has a fault, so long as the fault is isolated, the fault is not expanded, and the influence is small.
When designing a power conversion module, fault isolation is generally performed by an input/output fuse or the like. If these foreign objects are deposited at the external connection of the power conversion module, i.e. outside the input/output fuses of the module, the input/output fuses cannot isolate the fault, and even the risk of fault amplification, such as short-circuiting the busbars of a multi-module parallel system, and even firing at the connection, burning the cables.
The current common solution is to add a fuse outside the connection device of the power conversion module, and the fuse has the function of preventing the short-circuit fault caused by foreign matters at the connection device of the power conversion module, and the fuse protects the bus from being affected by the short circuit. The addition of the fuse wire avoids the problem of fault expansion caused by short circuit at the connecting device, but the cost is increased, and the fuse wire needs to consider the problems of replacement after the fuse wire is fused, and the difficulty of operation and maintenance is increased.
In the connection form of the external connection device of the existing power conversion module, a cable end connection device is connected to a Printed Circuit Board (PCB) Board end connection device; the connector comprises 2 parts, namely a female end (a cable end) and a male end (a connecting PCB end), wherein the lower pin of the connecting device of the PCB end is welded to the PCB end, and fuses with different potentials are welded at a position close to the connecting device. When a short-circuit fault is caused by foreign matters at the ends of the fuse and the PCB, fault isolation can be performed by fusing the fuse; however, when a short-circuit fault is caused by the existence of foreign matter between the fuse and the PCB end connection device, the fuse cannot be fault-isolated, and in a parallel system, the current of other modules flows through the fault, so that the PCB, the cable and the like can be burnt.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a connecting device of a power conversion module and a power supply system, which are used for avoiding the situation that the connecting device of the power conversion module is short-circuited and cannot be isolated due to foreign matters.
To achieve the above object, the present application provides a connecting device for a power conversion module, the device including a first connecting module, a second connecting module, an insulating member, a plurality of connecting conductors, and a plurality of sets of fuses; one side of the first connecting module is respectively connected with input or output ports with different potentials of first external equipment through a plurality of groups of fuses, and the other end of the first connecting module is plugged with the second connecting module; one ends of the connecting conductors are respectively connected with the multiple groups of fuses through the first connecting module, and the other ends of the connecting conductors are connected with input or output ports of different potentials of second external equipment through the second connecting module; the insulating assembly is arranged between the connecting conductors and the fuses and used for insulating and dividing the connecting conductors and the fuses with different electric potentials.
In the above connecting device for a power conversion module, optionally, the first external device is a printed circuit board or a bus connection cable; the second external device is a printed circuit board or a bus connection cable.
In the above connecting device for a power conversion module, optionally, the second connecting module is connected to a second external device through a fuse, and the other end of the connecting conductor is connected to the fuse through the second connecting module.
In the above-described power conversion module connection device, optionally, the printed circuit board includes a plurality of copper foils; one end of each of the multiple groups of fuses is respectively connected with the input and/or output ports of the circuits with different electric potentials in the printed circuit board; the other end of the fuse is connected with the copper foil through the printed circuit board; the connecting conductor is connected with the fuse through the copper foil.
In the above connecting device for a power conversion module, optionally, the insulating assembly includes an extension portion, and the extension portion extends between the copper foils through the first connecting module and/or the second connecting module and is used for performing insulating division between the copper foils.
In the above-described power conversion module connection device, optionally, the second connection module includes an access member and a plurality of guide members; the access piece is used for inserting and connecting the second connecting module with the first connecting module; the guide piece is sleeved outside the connecting conductor through the access piece and used for connecting the connecting conductor with input or output ports of different potentials of second external equipment through fuses.
In the above connecting device for a power conversion module, optionally, the insertion member further includes an insulation reinforcing groove, and the insulation reinforcing groove is disposed between the guide members; the insulation assembly corresponds to the insulation reinforcing groove and is embedded between the guide pieces through the insulation reinforcing groove.
In the above connecting device for a power conversion module, optionally, one or more slots are provided on a side of the printed circuit board, which is connected to the first connecting module; the insulating assembly is embedded in the printed circuit board along the slot and extends to the front and back of the printed circuit board.
In the above connecting device for a power conversion module, optionally, the insulating member is an insulating partition plate or an equivalent partition plate.
The application also provides a power supply system comprising the connecting device of the power conversion module, and the system also comprises a plurality of power converters and a plurality of groups of buses; the power converters are connected in parallel through a plurality of groups of buses; the power converter comprises a printed circuit board, and input or output ports of different circuits in the printed circuit board are connected with the multiple groups of buses in a one-to-one mode through the connecting device.
The beneficial technical effect of this application lies in: simple structure, the connecting device volume has been done under the unchangeable condition and has been insulated by force, can effectively avoid connecting device department because the foreign matter short circuit problem, the cost change is little, does not have the degree of difficulty in the fortune dimension, has improved the reliability of product.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this application, and are not intended to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a connection device of a power conversion module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a first connection module according to an embodiment of the present application;
fig. 3 is a schematic cross-sectional view of a printed circuit board according to an embodiment of the present application;
FIG. 4 is a schematic view of an extended position of an extension portion according to an embodiment of the present application;
fig. 5 is a schematic view of a slotted structure of a printed circuit board according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a second connection module according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a power supply system according to an embodiment of the present application.
Detailed Description
The following detailed description will be provided with reference to the drawings and examples to explain how to apply the technical means to solve the technical problems and to achieve the technical effects. It should be noted that, as long as there is no conflict, the embodiments and the features in the embodiments in the present application may be combined with each other, and the technical solutions formed are all within the scope of the present application.
Additionally, the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions, and while a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than here.
In practical operation, the connection device can be used in three different ranges, i.e. connecting the printed circuit board and the bus connecting cable through the connection device; 2. connecting the printed circuit board and the printed circuit board through a connecting device; 3. connecting the bus connecting cable and the bus connecting cable through a connecting device; the application comprises an insulating component in the use range of the three components, wherein the insulating component is used for effectively insulating and isolating a fuse wire connected with a connecting device; the following examples of the present application will be described with reference to the first structure, and it should be understood by those skilled in the art that the present application is not limited to the embodiments.
Referring to fig. 1, the present application provides a connecting device for a power conversion module, which includes a first connecting module 101, a second connecting module 102, an insulating member 103, a plurality of connecting conductors 105, and a plurality of sets of fuses 106; one side of the first connection module 101 is connected to the input or output ports of the first external device 104 with different potentials through a plurality of sets of fuses 106, and the other end is plugged into the second connection module 102; one ends of the plurality of connection conductors 105 are respectively connected to the plurality of sets of fuses 106 through the first connection module 101, and the other ends are connected to input or output ports of a second external device, which have different potentials, through the second connection module 102; the insulating member 103 is disposed between the plurality of connecting conductors 105 and the plurality of sets of fuses 106, and is configured to perform insulating division on the plurality of connecting conductors 105 and the plurality of fuses 106 of different potentials.
In the above embodiments, the insulating assembly may be a strong insulating partition structure such as an insulating partition or an equivalent partition. In this embodiment, the insulation assembly isolates the connection conductors and the fuses of different potentials, so that each connection conductor and each fuse are separated into a single closed space by the insulation assembly, the connection conductors and the fuses of different potentials cannot be connected through foreign matters, and when any one of the conductors or the fuses of the connection conductors and the fuses has the foreign matters, short-circuit failure cannot be caused, so that the risk of system-level short circuit caused by the foreign matters to the whole power supply system is prevented; the whole structure is simple, the cost is not changed greatly, the operation and maintenance are not difficult, and the reliability of the product is improved. It is worth mentioning that, in practical operation, the first external device may be a printed circuit board or a bus bar connection cable; the second external device may be a printed circuit board or a bus connection cable, and a person skilled in the art may select a specific structure of the first external device and the second external device according to actual needs, and similar to the first connection module, the second connection module may also be connected through a fuse when connecting the printed circuit board or the bus connection cable.
Referring to fig. 2, in an embodiment of the present application, the first connection module includes a hollow housing 201, a fixing member 202, and a connection member 203; the connecting conductor 204 is disposed in the hollow shell 201, and the hollow shell 201 is used for protecting the connecting conductor 204; the fixing component 202 is disposed at one side of the hollow housing 201, and is used for fixing the hollow housing 201 to an input or output side of a printed circuit board 205; one end of the connecting piece 203 is connected with copper foils of input or output ports of the printed circuit board 205 with different potentials through a lower pin 204, and the other end is connected with the connecting conductor 204 through the hollow shell 201.
In this embodiment, a plurality of accommodating spaces can be constructed in the hollow shell through the insulating assembly, and two adjacent accommodating spaces are insulated and divided through the insulating assembly; the connecting conductors are respectively placed in the accommodating spaces, connecting holes are formed in the opposite sides of the accommodating spaces and the PCB, and the connecting conductors are connected with the lower pins through the connecting holes and connected with copper foils of input or output ports of the printed circuit board at different potentials. The fixed subassembly can be for a simple contact pin mode with the cavity casing be fixed in the reservation slot on the PCB board, also can design according to the size of socket, the number of contact, the contact distance, the position of locating hole etc. according to the plug structure of predetermineeing on the PCB board, make it match with special PCB socket to accomplish fixed connection, concrete conditions can select to set for according to actual need, this application does not do further injectly here.
Referring to fig. 3, in an embodiment of the present application, the printed circuit board includes a plurality of copper foils 301; one end of each of the plurality of sets of fuses 302 is connected to an input port and/or an output port of a circuit with different potentials in the printed circuit board 303; the other end of the fuse 302 is connected with the copper foil 301 through the printed circuit board 303; the connection conductor is connected to the fuse 302 through the copper foil 301.
Specifically, the fuse wire in the PCB structure is arranged between the circuits with different electric potentials and the copper foil, so that when any circuit in the PCB fails, the fuse wire can be blown to prevent further influence on the whole power supply system, the structure of the fuse wire can refer to the existing fuse wire structure, and the fuse wire has the function of being blown when the current flowing through the fuse wire is higher than a preset value, so that the connection between the circuits and the copper foil is disconnected; the copper foil is used for facilitating the pin to be connected to the other end of the fuse wire, so that the connection efficiency is improved, the copper foil can be selectively arranged according to actual needs in actual work, and the application is not further limited.
Referring to fig. 4, in practical operation, the insulation assembly may include an extension portion 401, and the extension portion 401 extends between the copper foils 403 through the first connection module 402 and/or the second connection module for performing insulation division between the copper foils 403.
Specifically, the copper foil is often arranged on the back surface of the PCB, that is, the PCB back plate, in this embodiment, the extension portion may be arranged in the slot based on the structure of the PCB, the PCB is connected and fixed to the fixing template through the slot, and the extension portion also separates the adjacent copper foils while supporting and clamping the PCB, thereby preventing the occurrence of a short circuit condition caused by foreign matters between the copper foils. In this embodiment, when the second external device connected by the second connection module is also a PCB, the extension portion will extend between the copper foils on the PCB of the first external device and the PCB of the second external device after penetrating through the first connection module and the second connection module, so as to realize the insulation division of the copper foils.
In an embodiment of the present application, one or more slots are formed on the side of the printed circuit board, which is connected to the first connection module; the insulating assembly is embedded in the printed circuit board along the slot and extends to the front and back of the printed circuit board. Therefore, the extending part can extend to the front side and the back side of the PCB through the PCB to insulate and isolate the copper foil and the fuse, and the extending part forms an integral panel, so that the stability is higher, and the requirement on the manufacturing process is lower. Specifically, as shown in fig. 5, a slot 503 is formed on a connection side of the printed circuit board 501 and the first connection module 502, where the slot 503 is formed based on the copper foil and the position of the fuse, and in actual operation, the fuse and the copper foil are often in the same vertical plane, and therefore, the slot may be a straight embedded slot structure; the extension part adopts a straight plate structure corresponding to the slot to be embedded into the slot, so that the copper foil and the fuse wire are insulated and isolated. Therefore, continuous and complete insulation isolation can be formed among conductors with different potentials of the connecting device, copper foils with different potentials on the PCB and fuses with different potentials on the PCB. Complete insulation isolation, even if deposits are arranged between live conductors of the connecting device and between fuses at the connecting device, short-circuit faults caused by discharge and ignition can not occur. The problem of fault amplification caused by the fact that short circuit faults at the current connecting device cannot be isolated is solved; similarly, when the second connection module is connected to the PCB, the above-mentioned slot structure can be adopted, and thus, detailed description is omitted.
Referring to fig. 6, in an embodiment of the present application, the second connection module includes an access component 601 and a plurality of guiding components 602; the access member 601 is used for inserting and connecting the second connection module with the first connection module; the guide 602 is sleeved outside the connection conductor through the access 601, and is used for connecting the connection conductor with input or output ports of different potentials of a second external device through fuses. Further, the access member 601 further comprises an insulation reinforcing groove 603, and the insulation reinforcing groove 603 is disposed between the guide members 602; the insulation member corresponds to the insulation reinforcing groove 603 and is inserted between the guide members through the insulation reinforcing groove 603.
In actual operation, the guide piece can be fixedly connected with the access piece in actual operation, and the guide piece can be in a structure of a hole groove with the size consistent with that of an external cable, and the external cable is accessed into the connecting conductor through the hole groove; therefore, when in actual use, the external cable can be fixed through the guide piece and then connected with the connecting conductor, and then the second connecting module is connected with the first connecting module in an inserting mode, so that the communication between the PCB and the external cable is realized. The insulation reinforcing groove can be used as an accommodating groove of the insulation assembly, so that an accommodating space of the insulation assembly is provided when the second connecting module is connected with the first connecting module, and meanwhile, the groove structure can further improve the insulation effect and prevent different connecting conductors from being short-circuited; the access piece is the structure of closing with inserting that first connection module is supporting, can refer to the piece of closing in the actual work, and this application is no longer detailed one by one here.
It should be noted that, in the above embodiments and the accompanying drawings, only the PCB board is taken as an example for connecting the bus connecting cable, but the application is not limited to this connection method, and the structure of the connection device can be adjusted adaptively according to actual needs. In practical use, the first connection module and the second connection module can be connected to an external device in the manner shown in the above embodiments, and the devices connected to the first connection module and the second connection module can be PCB boards or bus connection cables.
Referring to fig. 7, the present application further provides a power supply system including the connecting device of the power conversion module, the system further includes a plurality of power converters 701 and a plurality of sets of buses 703; a plurality of the power converters 701 are connected in parallel through a plurality of groups of buses 703; the power converter 701 includes a printed circuit board, and input or output ports of different circuits in the printed circuit board are connected with a plurality of sets of bus bars in a one-to-one manner through the connection device 702. In actual operation, a fuse does not need to be arranged between the connecting device and the bus in the power supply system, and any power converter connected in parallel in the system can avoid the problem of short circuit caused by foreign matters among the fuse, the copper foil and the connecting conductor.
The beneficial technical effect of this application lies in: simple structure, connecting device volume has accomplished strong insulation under the unchangeable condition, can effectively avoid connecting device department because the foreign matter short circuit problem, the cost change is little, does not have the degree of difficulty in the fortune dimension. The reliability of the product is improved.
The above-mentioned embodiments are further described in detail for the purpose of illustrating the invention, and it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A connecting device of a power conversion module is characterized by comprising a first connecting module, a second connecting module, an insulating component, a plurality of connecting conductors and a plurality of groups of fuses, wherein the first connecting module is connected with the second connecting module;
one side of the first connecting module is respectively connected with input or output ports of different potentials of first external equipment through a plurality of groups of fuses, and the other end of the first connecting module is plugged with the second connecting module;
one ends of the connecting conductors are respectively connected with the multiple groups of fuses through the first connecting module, and the other ends of the connecting conductors are connected with input or output ports of second external equipment at different potentials through the second connecting module;
the insulating assembly is arranged between the connecting conductors and the fuses and used for insulating and dividing the connecting conductors and the fuses with different electric potentials.
2. The connecting device of a power conversion module according to claim 1, wherein the first external device is a printed circuit board or a bus bar connection cable; the second external device is a printed circuit board or a bus connection cable.
3. The connecting device for a power conversion module according to claim 2, wherein the second connecting block is connected to a second external device through a fuse, and the other end of the connecting conductor is connected to the fuse through the second connecting block.
4. The power conversion module connection device according to claim 2, wherein the printed circuit board comprises a plurality of copper foils;
one end of each of the multiple groups of fuses is respectively connected with the input and/or output ports of the circuits with different electric potentials in the printed circuit board;
the other end of the fuse is connected with the copper foil through the printed circuit board;
the connecting conductor is connected with the fuse through the copper foil.
5. The power conversion module connection device according to claim 4, wherein the insulation member comprises an extension portion extending between the copper foils through the first connection module and/or the second connection module for insulation division between the copper foils.
6. The power conversion module connecting device according to claim 1, wherein the second connecting module includes an access member and a plurality of guide members;
the access piece is used for inserting and connecting the second connecting module with the first connecting module;
the guide piece is sleeved outside the connecting conductor through the access piece and used for connecting the connecting conductor with input or output ports of different potentials of second external equipment through fuses.
7. The connecting device for a power conversion module according to claim 6, wherein the inlet member further includes an insulation reinforcing groove provided between the guide members; the insulation assembly corresponds to the insulation reinforcing groove and is embedded between the guide members through the insulation reinforcing groove.
8. The connecting device for a power conversion module according to claim 2, wherein the printed circuit board is provided with one or more slots on the side thereof where the printed circuit board meets the first connecting module; the insulating assembly is embedded in the printed circuit board along the slot and extends to the front and back of the printed circuit board.
9. The connecting device for power conversion modules according to claim 1, wherein the insulating member is an insulating spacer or an equivalent spacer.
10. A power supply system comprising a connection device of the power conversion module according to any one of claims 1 to 9, characterized in that the system further comprises a plurality of power converters and a plurality of sets of bus bars;
the power converters are connected in parallel through a plurality of groups of buses;
the power converter comprises a printed circuit board, and input or output ports of different circuits in the printed circuit board are connected with the multiple groups of buses in a one-to-one mode through the connecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222656285.7U CN218548861U (en) | 2022-09-30 | 2022-09-30 | Connecting device of power conversion module and power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222656285.7U CN218548861U (en) | 2022-09-30 | 2022-09-30 | Connecting device of power conversion module and power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218548861U true CN218548861U (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222656285.7U Active CN218548861U (en) | 2022-09-30 | 2022-09-30 | Connecting device of power conversion module and power supply system |
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| Country | Link |
|---|---|
| CN (1) | CN218548861U (en) |
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- 2022-09-30 CN CN202222656285.7U patent/CN218548861U/en active Active
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