CN110843702A

CN110843702A - Novel PDU structure

Info

Publication number: CN110843702A
Application number: CN201911057696.0A
Authority: CN
Inventors: 杜朝晖
Original assignee: Wuhan Jiachen Automobile Technology Co Ltd
Current assignee: Wuhan Jiachen Automobile Technology Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-02-28

Abstract

The invention relates to a novel PDU structure, comprising: the novel relay, separate electric plate and insertion components, novel relay, separate electric plate and insertion components set up on the PCB board, the fuse setting separate the electric plate in and with the PCB board welding, insertion components includes PDU socket and bayonet joint, the PDU socket passes through port interface welding on the PCB board, and bayonet joint and PDU socket phase-match, PDU socket and bayonet joint form specific power distribution module with circuit board and other circuit components and parts stable connection. The mode that combines is connected through the inserted sheet and contact pin connection between the bayonet joint of this scheme and the PDU socket, forms specific power distribution module with circuit board and other circuit components and parts stable connection, has saved the step of connecting different modules through the circuit overlap joint among the prior art, has simplified the connection procedure, has eliminated circuit interference's hidden danger, has solved the circuit overlap joint and has piled up the technical problem that leads to power distribution module heat dissipation difference.

Description

Novel PDU structure

Technical Field

The invention relates to the technical field of electric automobile power distribution, in particular to a novel PDU structure.

Background

An element in the electric automobile is called a high-voltage electric high-current distribution unit (PDU for short in English), and the high-voltage electric high-current distribution unit is mainly used for electrically connecting high-voltage components through a busbar and a wiring harness, providing functions of charge and discharge control, high-voltage component power-on control, circuit overload short-circuit protection, high-voltage sampling, low-voltage control and the like for a high-voltage system of a new energy automobile, and protecting and monitoring the operation of the high-voltage system; adopt a large amount of electric wires to connect between the circuit board in the current PDU, lead to the inside electric wire of PDU crisscross, when influencing the heat dissipation, be unfavorable for the modularization production.

Disclosure of Invention

The present invention is directed to provide a novel PDU structure in view of the above situation.

The technical scheme adopted by the invention is as follows: a novel PDU structure, comprising: PCB board, novel relay, fuse, separate electric plate and insertion components, novel relay separate the electric plate and reach insertion components sets up on the PCB board, the fuse sets up separate in the electric plate and with PCB board welding, insertion components includes PDU socket and bayonet joint, the PDU socket passes through port interface welding is in on the PCB board, just the bayonet joint with PDU socket phase-match, the PDU socket reaches the bayonet joint forms specific power distribution module with circuit board and other circuit components and parts stable connection.

The invention has the following effects: the mode that combines is connected through the inserted sheet and contact pin connection between bayonet joint and the PDU socket, forms specific power distribution module with circuit board and other circuit components and parts stable connection, has saved the step of connecting different modules through the circuit overlap joint among the prior art, has simplified the connection procedure, has eliminated the hidden danger of circuit interference, has solved the circuit overlap joint and has piled up the technical problem that leads to power distribution module heat dissipation difference.

Drawings

FIG. 1 is a schematic structural diagram of a novel PDU structure;

FIG. 2 is a schematic diagram of another angle structure of a novel PDU structure;

FIG. 3 is a schematic structural diagram of the PCB shown in FIG. 1;

FIG. 4 is a schematic diagram of the novel relay of FIG. 2;

FIG. 5 is a schematic diagram of the PDU socket of FIG. 1;

FIG. 6 is a schematic structural diagram of the insulating base of FIG. 5;

FIG. 7 is a schematic view of the insert receiving member of FIG. 5;

FIG. 8 is a schematic view of the structure of the needle receiving member of FIG. 5;

FIG. 9 is a schematic view of the structure of the bayonet joint of FIG. 1;

fig. 10 is a schematic view of the plug of fig. 1 at another angle.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

A novel PDU structure is described with reference to the accompanying drawings:

referring to fig. 1-10, a new PDU structure is shown, which includes: PCB board 1, novel relay 2, fuse 3, separate electric plate 4 and plug part 5, novel relay 2 separate electric plate 4 and plug part 5 sets up on the PCB board 1, fuse 3 sets up separate in the electric plate 4 and with PCB board 1 welding.

PCB board 1 includes extexine 11, copper line 12 buries underground in extexine 11, relay interface 14, port interface 13, separate electric plate interface 15 and fuse interface 16 have been seted up on extexine 11, novel relay 2 inserts and establishes in relay interface 14 and with copper line 12 contacts, insertion parts 5's pin is inserted and is established in port interface 13 and with copper line 12 contacts, separate electric plate 4 and insert and establish on separate electric plate interface 15, fuse 3's pin is inserted and is established in fuse interface 16 and with copper line 12 contacts.

The relay interface 14 includes a relay positioning groove 141, a relay fixing hole 142 and a relay welding opening 143, the relay positioning groove 141 is used for positioning the relay, the relay fixing hole 142 is used for bolt-fixing the relay, and the relay welding opening 143 is used for welding pins of the relay.

Separate electric board interface 15 including separating electric board constant head tank 151 and separating electric board and connect hole 152, separate electric board constant head tank 151 and be used for carrying out the partition board location, it is fixed that the joint that separates the electric board that separates electric board connects hole 152 and is used for carrying out the partition board.

The novel relay 2 comprises a relay body 21, wherein the relay body 21 is provided with bolt holes 211 matched with the relay fixing holes 142 and relay positioning plates 212 matched with the relay positioning grooves 141.

In this embodiment, the relay positioning plate 212 is located between the two bolt holes 211, and the relay positioning plate 212, the bolt holes 211 and the pins of the novel relay 2 are located on the same end surface of the relay body 21.

In this embodiment, the height of the relay positioning plate 212 is higher than the height of the pins of the novel relay 2.

During the installation, earlier with relay locating plate 212 inserts relay constant head tank 141 realizes the coarse positioning of relay, makes bolt hole 211 novel relay 2's pin respectively with relay fixed orifices 142 reaches relay welding mouth 143 aligns, stretches into the bolt hole 211 with in the relay fixed orifices 142, make the relay with PCB board 1 is stable fixed, welds again, makes relay and copper line 12 contact.

The fuse 3 is arranged in the insulating plate 4 and both ends of the fuse 3 are welded to the fuse interface 16.

The inserting component 5 comprises a PDU socket 51 and an inserting connector 52, the PDU socket 51 is welded on the PCB board 1 through the port interface 13, and the inserting connector 52 is matched with the PDU socket 51.

The PDU socket 51 includes an insulating base 511, at least one blade accommodation part and at least one pin accommodation part, and specifically, in this embodiment, it has two blade accommodation parts 512 and two pin accommodation parts 513.

The bottom of the insulating base 511 is used for being fixedly mounted with the PCB 1, one side of the insulating base 511 is recessed inwards to form two first accommodating cavities 5111 and two second accommodating cavities 5112, the first accommodating cavity 5111 has a first opening 5111a, and the second accommodating cavity 5112 has a second opening 5112 a;

the two insert accommodating pieces 512 are correspondingly arranged in the two first accommodating cavities 5111 one by one, wherein one end of each insert accommodating piece 512 corresponds to the first opening 5111a and is formed with a strip-shaped groove 2a, and one end of each insert accommodating piece 512, which is far away from the first opening 5111a, extends from the bottom of the insulating base 511 to the outside of the insulating base 511;

specifically, inserted sheet holding member 512 includes stationary blade 5121 and two

connection pieces

5122, 5123, two

connection pieces

5122, 5123 interval set up in the relative both sides of first holding chamber 5111, connection piece 5122 is close to the one end of first opening 5111a is to being close to the direction bending formation bending portion 5124 of connection piece 5123, connection piece 5123 is close to the one end of first opening 5111a is to being close to the direction bending formation bending portion 5125 of connection piece 5122, constitutes between two

bending portions

5124, 5125 the bar groove 2a, two

connection piece

5122, 5123 are close to one side extension of insulating base 511's bottom is formed with

installation department

51222, 51232.

The two pin accommodating parts 513 are correspondingly installed in the second accommodating cavities 5112 one to one, one end of each pin accommodating part 513 corresponds to the second opening 5112a and is formed with a pin opening 5113a, and one end of each pin accommodating part 513, which is far away from the second opening 5112a, extends from the bottom of the insulating base 511 to the outside of the insulating base 511.

Specifically, the pin accommodating part 513 includes a pin sleeve 5131 and a wiring pipe 5132, the pin sleeve 5131 is transversely and fixedly mounted in the second accommodating cavity 5112, the pin opening 5113a is formed at one end of the pin sleeve 5131 close to the second opening 5112a, the other end of the pin sleeve 5131 is formed with a wire opening 5131b, the wiring pipe 5132 is fixedly connected to one end of the pin sleeve 5131 close to the wire opening 5131b, a wiring groove 5132a communicated with the wire opening 5131b is formed on the wiring pipe 5132, and one end of the wiring pipe 5132 far from the pin sleeve 5131 extends to one side close to the bottom of the insulating base 511 to form a mounting end 51321.

The wire harness led out from the PCB 1 is inserted into the pin sleeve 5131 from the wire insertion opening 5131b via the wire groove 5132 a.

The

mounting portions

51222 and 51232 and the mounting end 51321 are connected to the PCB board 1 through the bottom of the insulating base 511.

In order to facilitate the installation and fixation of the insulating base 511 and the PCB board 1, a hook 5113 is formed at the outer side of the bottom of the insulating base.

The plug 52 includes a plug main body 521, an input terminal 522 and an output terminal 523, and the input terminal 522 and the output terminal 523 are respectively mounted on two sides of the plug main body 521.

The plug main body 521 includes a bottom plate 5211, a mounting seat 5212, an insert fixing block 5213 and an insert fixing block 5214, one end of the mounting seat 5212 is fixedly connected to the bottom plate 5211, and the input terminal 522 is mounted on one side of the mounting seat 5212 far away from the bottom plate 11.

The input terminal 522 includes an insert piece group 5221 and a pin group 5222, the insert piece group 5221 and the pin group 5222 are mounted on the plug main body 521 in parallel, the insert piece group 5221 includes an even number of insert pieces 52211, and the pin group 5222 includes an even number of pins 52221.

In this embodiment, the number of the insert pieces 52211 is two, and the number of the pins 52221 is two.

The two insert pieces 52211 are respectively installed at two ends of one side of the plug main body 521 and symmetrically arranged, and the two insert pins 52221 are installed at the middle position of one side of the plug main body 521.

In order to ensure the stable installation of the inserting pieces and the inserting pins and ensure the integral structural stability of the plug-in connector, inserting piece fixing blocks 5213 are installed on the plug main body 521 corresponding to each inserting piece 52211, one end of the plug sheet 52211, which is close to the plug main body 521, is inserted into the plug sheet fixing block 5213, specifically, in this embodiment, the insert fixing block 5213 is fixedly mounted on the mounting seat 5212, and one end of the insert 52211 close to the bottom plate is correspondingly inserted into the insert fixing block 5213, and similarly, the header body 521 is mounted with a pin fixing block 5214 corresponding to each pin 52221, one end of the pin 52221, which is close to the plug main body 521, is inserted into the pin fixing block 5213, specifically, in this embodiment, the pin fixing block 5214 is fixedly mounted on the mounting seat 5212, and one end of the pin 52221 close to the bottom plate is correspondingly inserted into the pin fixing block 5214.

When the corresponding plug-in connector 52 is plugged with the PDU socket 51, the plug-in connector 52 is connected with the PDU socket 51 in a mode of combining plug-in sheet connection and pin connection, the PCB 1 and other circuit components are stably connected to form a specific power distribution module, the step of connecting different modules through circuit lapping in the prior art is omitted, the connection step is simplified, the hidden trouble of circuit interference is eliminated, and the technical problem that the heat dissipation of the power distribution module is poor due to circuit lapping and stacking is solved.

This scheme adopts between bayonet joint and the PDU socket to be connected through the inserted sheet and the mode that the contact pin combines, forms specific power distribution module with circuit board and other circuit components and parts stable connection, has saved the step of connecting different modules through the circuit overlap joint among the prior art, has simplified the connection procedure, has eliminated circuit interference's hidden danger, has solved the circuit overlap joint and has piled up the technical problem that leads to power distribution module heat dissipation difference.

The above description is only exemplary of the present invention and should not be taken as limiting, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A novel PDU structure, comprising: PCB board, novel relay, fuse, separate electric plate and insertion components, novel relay separate the electric plate and reach insertion components sets up on the PCB board, the fuse sets up separate in the electric plate and with PCB board welding, insertion components includes PDU socket and bayonet joint, the PDU socket passes through port interface welding is in on the PCB board, just the bayonet joint with PDU socket phase-match, the PDU socket reaches the bayonet joint forms specific power distribution module with circuit board and other circuit components and parts stable connection.

2. The new PDU structure of claim 1, wherein the PDU receptacle comprises:

the bottom of the insulating base is used for being fixedly installed with a circuit board, one side of the insulating base is inwards recessed to form at least one first accommodating cavity and at least one second accommodating cavity, each first accommodating cavity is provided with a first opening, and each second accommodating cavity is provided with a second opening;

the inserting piece accommodating pieces are correspondingly arranged in the first accommodating cavity one by one, one end of each inserting piece accommodating piece corresponds to the first opening and is provided with a strip-shaped groove, and one end, far away from the first opening, of each inserting piece accommodating piece extends to the outside of the insulating base from the bottom of the insulating base;

the contact pin accommodating pieces are installed in the second accommodating cavities in a one-to-one correspondence mode, one ends of the contact pin accommodating pieces correspond to the second openings and are provided with contact pin ports, and one ends, far away from the second openings, of the contact pin accommodating pieces extend to the outside of the insulating base from the bottom of the insulating base.

3. The new PDU structure of claim 1, wherein said plug comprises a plug main body, an input terminal and an output terminal, said input terminal and said output terminal are respectively installed on both sides of said plug main body, said input terminal comprises a plug sheet set and a plug pin set, said plug sheet set and said plug pin set are installed on said plug main body in parallel, said plug sheet set comprises an even number of plug sheets, said plug pin set comprises an even number of plug pins.

4. The novel PDU structure of claim 2, wherein the insert receiving member comprises a fixing piece and two connecting pieces, the two connecting pieces are disposed at opposite sides of the first receiving cavity at intervals, one end of any one of the connecting pieces near the first opening is bent toward the other end of the connecting piece to form a bent portion, the two bent portions form the strip-shaped groove therebetween, and one side of the two connecting pieces near the bottom of the insulation base extends to form a mounting portion.

5. The novel PDU structure of claim 4, wherein the pin receiving member comprises a pin sleeve and a wiring tube, the pin sleeve is transversely and fixedly mounted in the second receiving cavity, the pin opening is formed at one end of the pin sleeve close to the second opening, the other end of the pin sleeve is formed with a wire opening, the wiring tube is fixedly connected to one end of the pin sleeve close to the wire opening, a wiring groove communicated with the wire opening is formed on the wiring tube, and a mounting end is formed by extending one end of the wiring tube far away from the pin sleeve to one side close to the bottom of the insulation base.

6. The new PDU structure of claim 3, wherein the pin groups are installed at both ends of one side of the plug main body, and the pins at both ends of the plug main body are symmetrically arranged with respect to each other, and the pin groups are installed at a middle position of one side of the plug main body.

7. The novel PDU structure of claim 6, wherein a blade fixing block is installed on the plug main body corresponding to each blade, and one end of the blade close to the plug main body is inserted into the blade fixing block.

8. The novel PDU structure of claim 7, wherein the novel relay comprises a relay body, the relay body is provided with bolt holes and a relay positioning plate, the relay positioning plate is located between two bolt holes, and the relay positioning plate, the bolt holes and the pins of the novel relay are located on the same end face of the relay body.