CN210925892U

CN210925892U - Relay convenient to welded fastening

Info

Publication number: CN210925892U
Application number: CN201921864118.3U
Authority: CN
Inventors: 杜朝晖
Original assignee: Wuhan Jason Automobile Technology Co ltd
Current assignee: Wuhan Jason Automobile Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-03
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to a relay convenient to welded fastening, include: the relay positioning device comprises a relay body, wherein bolt holes matched with relay fixing holes and a relay positioning plate matched with a relay positioning groove are formed in the relay body. The scheme is provided with a positioning plate and bolt holes, the positioning plate is firstly used for carrying out initial positioning, the relay is fixed through the bolt holes, and finally welding is carried out; the whole alignment and installation process is fast and rapid, and the pins can be effectively prevented from being damaged.

Description

Relay convenient to welded fastening

Technical Field

The utility model relates to an electric automobile power distribution technical field specifically is a relay convenient to welded fastening.

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; when the existing relay is installed on a circuit board in the existing PDU, the time for pin alignment is long, and the pins of the relay can be damaged by carelessness.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned current situation, provide a relay convenient to welded fastening.

The utility model adopts the technical proposal that: a relay for facilitating solder attachment, comprising: the relay positioning device comprises a relay body, wherein bolt holes matched with relay fixing holes and a relay positioning plate matched with a relay positioning groove are formed in the relay body.

The utility model has the effects that: the relay is provided with a positioning plate and bolt holes, the positioning plate is firstly used for carrying out initial positioning, the relay is fixed through the bolt holes, and finally welding is carried out; the whole alignment and installation process is fast and rapid, and the pins can be effectively prevented from being damaged.

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 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 following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

A relay which facilitates weld attachment is described in connection with the accompanying drawings:

referring to fig. 1-10, a new PDU structure is shown, which includes: the circuit board comprises a PCB (printed circuit board) 1, a relay 2, a fuse 3, an electricity isolation plate 4 and an inserting component 5, wherein the relay 2, the electricity isolation plate 4 and the inserting component 5 are arranged on the PCB 1, and the fuse 3 is arranged in the electricity isolation plate 4 and welded with the PCB 1.

The PCB board 1 comprises an outer surface layer 11 and a copper wire 12, the copper wire 12 is buried in the outer surface layer 11, a relay interface 14, a port interface 13, an electricity isolating plate interface 15 and a fuse interface 16 are arranged on the outer surface layer 11, the relay 2 is inserted in the relay interface 14 and is in contact with the copper wire 12, pins of the insertion component 5 are inserted in the port interface 13 and are in contact with the copper wire 12, the electricity isolating plate 4 is inserted on the electricity isolating plate interface 15, and pins of the fuse 3 are inserted in the fuse interface 16 and are in contact with the copper wire 12.

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 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.

The relay positioning plate 212 is relative the relay body 21 is vertical, the relay positioning plate 212 is kept away from the corner of the side of the relay body 21 adopts circular arc transition, reduces in the installation process with the probability of damaging of PCB board 1.

A bump 22 is formed on the side wall of the relay body 21, one end of a pin of the relay 2 is embedded in the bump 22 and connected with a component inside the relay body 21, and the other end of the pin of the relay 2 protrudes out of the bump 22.

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 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 relay 2.

During installation, insert relay locating plate 212 earlier relay constant head tank 141 realizes the coarse positioning of relay, makes bolt hole 211 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.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A relay convenient to weld fixation, comprising: the relay positioning device comprises a relay body, wherein bolt holes matched with relay fixing holes and a relay positioning plate matched with a relay positioning groove are formed in the relay body.

2. The relay convenient to weld and fix as claimed in claim 1, wherein the relay positioning plate is vertical relative to the relay body, and corners of the side edges of the relay positioning plate far away from the relay body are in arc transition.

3. The relay convenient for welding and fixing as claimed in claim 2, wherein a bump is formed on the side wall of the relay body, one end of the pin of the relay is embedded in the bump and connected with the component inside the relay body, and the other end of the pin of the relay protrudes out of the bump.

4. The relay convenient for welding and fixing as claimed in claim 3, wherein the relay positioning plate is located between two bolt holes, and the relay positioning plate, the bolt holes and the pins of the relay are located on the same end face of the relay body.