CN209747410U - Elastic fixing buckle of square relay - Google Patents

Abstract

The utility model relates to a square relay's elastic fixation buckle, include: the mesochite main part has seted up the relay fixed slot, be equipped with the relay buckle in the relay fixed slot, the relay buckle includes first buckle piece and second buckle piece, first buckle piece and second buckle piece one end are fixed in the mesochite main part, and have elasticity, first fretwork groove has been seted up on the first buckle piece, be equipped with first joint lug on the inner wall in first fretwork groove, first joint lug is outstanding in first buckle piece place plane, second fretwork groove has been seted up on the second buckle piece, be equipped with second joint lug on the inner wall in second fretwork groove, second joint lug is outstanding in second buckle piece place plane. The utility model discloses a square relay's elastic fixation buckle has elastic first buckle piece and second buckle piece through the setting, but first buckle piece and second buckle piece buckle not equidimension relay to adapt to not unidimensional relay.

Description

Elastic fixing buckle of square relay

Technical Field

The utility model relates to an electric automobile battery package mechanical structure specifically is a square relay's elastic fixation buckle.

Background

An element called a battery pack circuit breaking unit (BDU for short) is arranged in the electric automobile, and the BDU is mainly used for ensuring the safety of the system by cutting off the current of the battery system through a main contactor based on the command of a whole vehicle controller when the system reports errors; be provided with the relay on the battery package unit that opens circuit, be equipped with the groove that holds the relay in the battery package unit main part that opens circuit, reach fixed relay's effect, there is following problem in current battery package unit package that opens circuit: the accommodating space of the groove for accommodating the relay is constant, and when the relay is replaced, the size of a replacement part is different from that of a replaced part; so that a situation in which the relay cannot be put in occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned current situation, provide a square relay's elastic fixation buckle.

The utility model adopts the technical proposal that: an elastic fixing buckle of a square relay comprises: the middle shell main body is provided with a relay fixing groove, a relay buckle is arranged in the relay fixing groove and comprises a first buckle piece and a second buckle piece, one end of the first buckle piece and one end of the second buckle piece are fixed on the middle shell main body and have elasticity, a first hollowed-out groove is formed in the first buckle piece, a first clamping lug is arranged on the inner wall of the first hollowed-out groove, the first clamping lug protrudes out of the plane where the first buckle piece is located, a second hollowed-out groove is formed in the second buckle piece, a second clamping lug is arranged on the inner wall of the second hollowed-out groove, and the second clamping lug protrudes out of the plane where the second buckle piece is located.

the utility model has the effects that: square relay's elastic fixation buckle, have elastic first buckle piece and second buckle piece through the setting, but first buckle piece and second buckle piece buckle not equidimension relay to adapt to not unidimensional relay.

Drawings

Fig. 1 is a schematic structural view of a battery pack disconnection unit;

Fig. 2 is a schematic structural view of a battery pack disconnecting unit with an upper case assembly removed;

Fig. 3 is a schematic structural view of the component fixing groove in fig. 1;

Fig. 4 is a schematic view of the protecting cover of fig. 1;

FIG. 5 is a schematic view of the middle shell fastener of FIG. 1;

FIG. 6 is a schematic view of the structure of FIG. 5 with the middle shell retaining buckle removed;

FIG. 7 is a schematic view of the structure of the vibration/noise reduction unit shown in FIG. 2;

FIG. 8 is a schematic structural view of FIG. 7 with the shock absorbing and noise reducing units removed;

FIG. 9 is a schematic structural view of the center housing assembly;

FIG. 10 is an enlarged view of the relay securing slot of FIG. 9;

Fig. 11 is an enlarged schematic view of a relay fixing groove at another angle;

FIG. 12 is a schematic view of a FPC assembly;

FIG. 13 is a schematic view of another FPC assembly;

FIG. 14 is a schematic view of the resilient clip of FIG. 12;

FIG. 15 is a schematic cross-sectional view at the socket;

FIG. 16 is a schematic view of the FPC flexible board;

FIG. 17 is a schematic view of the structure of the vibration/noise reduction unit shown in FIG. 2;

FIG. 18 is a schematic view of another angle of the vibration/noise reduction unit shown in FIG. 2.

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 battery pack disconnect unit is described with reference to the accompanying drawings:

Referring to fig. 1-18, a battery pack disconnection unit includes: the flexible printed circuit board comprises an upper shell assembly 1, a middle shell assembly 2 and an FPC assembly 3, wherein the upper shell assembly 1 is connected with the middle shell assembly 2 in a clamped mode, and the FPC assembly 3 is connected with the middle shell assembly 2 in a clamped mode.

The upper casing assembly 1 comprises an upper casing main body 11 and a plurality of protective covers 12 arranged on the upper casing main body 11, wherein the protective covers 12 are hinged to the upper casing main body 11.

go up shell main part 11 with protective cover 12 junction is equipped with articulated portion 111, component fixing slot 112 has been seted up to go up shell main part 11, protective cover fixing through-hole 113 has been seted up on the border of component fixing slot 112.

Protective cover 12 is including being equipped with protective cover main part 121, hinge hook portion 122 and fixed shell fragment 123, hinge hook portion 122 sets up on protective cover main part 121 and with articulated portion 111 is connected, fixed shell fragment 123 sets up on protective cover main part 121 and with upper shell main part 11 joint.

The hinge portion 111 includes a hinge block 1111 and a hinge rod 1112, the hinge block 1111 is disposed on the upper case body 11, and the hinge rod 1112 is fixed on the hinge block 1111.

The end of the hinge part 121 is bent to be hook-shaped, the hinge part 121 is engaged with the hinge rod 1112, and the hinge part 121 is rotatable relative to the hinge rod 1112.

The hinge part 121 is provided with a plurality of hinge reinforcing ribs 1211.

Fixed shell fragment 123 is made by having elastic working of plastics, fixed shell fragment 123 is the U type, one end with protective cover main part 121 is fixed, be equipped with on the other end a plurality of with protective cover fixing through hole 113 assorted protective cover fixed bulge 124.

When fixing the fixed protruding 124 of a plurality of protective covers on the shell fragment 123 with protective cover fixed through hole 113 block, protective cover 12 with component fixed slot 112 forms the different accommodation space of volume, and when the accommodation space volume that forms was minimum, protective cover 12 with epitheca main part 11 butt.

when the protective cover is used, a component is placed in the component fixing groove 112, the protective cover 12 is turned over, and the protective cover fixing protrusion 124 on the fixing elastic sheet 123 is clamped with the protective cover fixing through hole 113; the proper protective cover fixing protrusion 124 can be selected to be clamped with the protective cover fixing through hole 113 according to the size of the component; at this time, the remaining shield cover fixing protrusion 124 plays a role of preventing slipping when the shield cover 12 is opened or closed.

The upper shell assembly 1 further comprises a middle shell fixing buckle 13, the middle shell fixing buckle 13 is connected with the middle shell assembly 2 in a clamped mode, and the middle shell fixing buckle 13 protrudes out of the upper shell main body 11.

The middle shell fixing buckle 13 comprises a main buckle 131, a first protection piece 132 and a second protection piece 133, the main buckle 131, the first protection piece 132 and one end of the second protection piece 133 are fixed to the upper shell body 11, and the first protection piece 132 and the second protection piece 133 are arranged on two sides of the main buckle 131.

the main button 131, the first protective sheet 132, and the second protective sheet 133 are integrally connected to one end of the upper case body 11.

The main buckle 131 is provided with a bayonet 1311.

The middle shell assembly 2 comprises a middle shell main body 21, an upper shell fixing head 22 and a damping and noise reducing unit 23, wherein the upper shell fixing head 22 and the damping and noise reducing unit 23 are arranged on the middle shell main body 21.

A clamping gap 211 is formed in the edge of the middle shell main body 21, the position and the shape of the clamping gap 211 are matched with those of the middle shell fixing buckle 13, and the upper shell fixing head 22 is arranged on the inner wall of the clamping gap 211 and is matched with the bayonet 1311; the inner wall of the clamping gap 211 is made of elastic material.

the upper shell fixing head 22 is provided with an inclined surface 221, and the inclined surface 221 faces the main buckle 131.

When the main buckle 131 is engaged with the upper case fixing head 22 in use, the first protective sheet 132 and the second protective sheet 133 respectively protect the left and right sides of the main buckle 131 to prevent the main buckle 131 from being damaged during the engagement; when the owner detain 131 with during the fixed head 22 separation of epitheca, press first protection piece 132 and second protection piece 133, the joint breach 211 inner wall consequently takes place deformation, the fixed head 22 of epitheca with the owner detains 131 and breaks away from the block state.

The middle shell main body 21 is provided with a damping groove 212, and the inner wall of the damping groove 212 is provided with a semicircular ring clamping sheet 213.

In this embodiment, the inner wall of the damping groove 212 is provided with a reinforcing rib 214 fixed to the semicircular clip plate 213, and the reinforcing rib 214 is used to firmly fix the semicircular clip plate 213.

the vibration and noise reduction unit 23 is clamped with the semicircular clamping sheet 213.

The damping and noise reducing unit 23 comprises a rigid fixing shaft 231 and a flexible damping cylinder 232, wherein the flexible damping cylinder 232 is sleeved on the rigid fixing shaft 231, the end part of the rigid fixing shaft 231 extends to form an abutting end 233, and the abutting end 233 abuts against the end part of the flexible damping cylinder 232.

The flexible damper cylinder 232 includes first butt tip 2321, joint portion 2322 and second butt tip 2323, first butt tip 2321 reaches second butt tip 2323 sets up respectively the both ends of joint portion 2322, joint portion 2322 with semicircle ring joint piece 213 joint, first butt tip 2321 reaches the diameter of second butt tip 2323 is greater than joint portion 2322 and with semicircle ring joint piece 213 butt.

in use, the first and second contact ends 2321 and 2323 of the flexible damper cylinder 232 absorb an impact from the vertical direction, and the engagement portion 2322 absorbs an impact from the horizontal direction.

The middle shell main body 21 is further provided with a relay fixing groove 215, a relay buckle 216 is arranged in the relay fixing groove 215, and the relay buckle 216 is used for fixing a relay.

The relay latch 216 includes a first latch piece 2161 and a second latch piece 2162, and one end of the first latch piece 2161 and one end of the second latch piece 2162 are fixed on the middle case main body 21 and have elasticity.

A first hollow groove 2163 is formed in the first buckle sheet 2161, a first clamping bump 2164 is arranged on the inner wall of the first hollow groove 2163, and the first clamping bump 2164 protrudes out of the plane of the first buckle sheet 2161.

In this embodiment, the first latching protrusion 2164 has a first inclined plane inclined with respect to a vertical plane, and the first inclined plane faces the second latching piece 2162. The first inclined plane facilitates the snapping-in of the relay.

in this embodiment, one end of the first latching tab 2161, which is far away from the middle housing main body 21, has a second inclined plane inclined with respect to the vertical plane, and the second inclined plane faces the second latching tab 2162. The second inclined plane facilitates the snapping-in of the relay.

a second hollow groove 2165 is formed in the second buckle sheet 2162, a second clamping bump 2166 is arranged on the inner wall of the second hollow groove 2165, and the second clamping bump 2166 protrudes out of the plane of the second buckle sheet 2162.

in this embodiment, the second latching protrusion 2166 has a third inclined plane inclined with respect to the vertical plane, and the third inclined plane faces the first latching piece 2161. The third inclined plane facilitates the snapping-in of the relay.

In this embodiment, one end of the second latching tab 2162, which is far away from the middle housing main body 21, has a fourth inclined plane inclined with respect to the vertical plane, and the fourth inclined plane faces the first latching tab 2161. The fourth inclined plane facilitates the snapping-in of the relay.

In this embodiment, the relay fixing groove 215 is further provided with a plug hole 217.

When the relay fixing device is used, the relay slides into the relay fixing groove 215 along the first inclined plane, the second inclined plane, the third inclined plane and the fourth inclined plane, and the first clamping piece 2161, the second clamping piece 2162, the first clamping convex block 2164 and the second clamping convex block 2166 are abutted, so that the relay is fixed; when the relay needs to be taken out, external force is applied to the first buckling piece 2161 and the second buckling piece 2162, so that the first buckling piece and the second buckling piece deform; the first buckling piece 2161, the second buckling piece 2162, the first clamping convex block 2164 and the second clamping convex block 2166 are separated from the abutting state with the relay, and then the relay can be taken out.

FPC assembly 3 includes FPC soft board 31, a plurality of regional PCB hardboards 32, cartridge components and parts 33 set up FPC soft board 31 is one side is last, regional PCB hardboards 32 with cartridge components and parts 33 correspond and set up on the FPC soft board 31 another side, FPC soft board 31 with regional PCB hardboards 32 reaches cartridge components and parts 33 is fixed, regional PCB hardboards 32 with mesochite assembly 2 is fixed.

And a circuit is arranged on the FPC soft board 31.

FPC soft board 31 includes top layer silk screen printing layer 311, top layer solder mask 312, top layer 313, base plate 314, bottom 315, bottom solder mask 316 and bottom silk screen printing layer 317, top layer silk screen printing layer 311 pastes on the top layer solder mask 312, top layer solder mask 312 pastes on the top layer 313, top layer 313 pastes on the base plate 314, base plate 314 pastes on the bottom 315, bottom 315 pastes on the bottom solder mask 316, bottom solder mask 316 pastes on the bottom silk screen printing layer 317.

the regional PCB hard board 32 is fixed with the plug-in component 33 and the FPC soft board 31, and the regional PCB hard board 32 plays a role in supporting the plug-in component 33.

the plug-in component 33 includes a connector 331, a plug terminal 332 and a plug 333, and the connector 331, the plug terminal 332 and the plug 333 are respectively fixed to the FPC flexible board 31 and the area PCB hard board 32.

the plug terminal 332 includes a pair of elastic clamping pieces 3321 arranged oppositely, and a gap is formed between the elastic clamping pieces 3321.

the ends of the oppositely disposed resilient clips 3321 are bent toward the FPC flexible board 31 and form a pair of opposite arc abutting surfaces.

the plug terminal 332 corresponds to the plug hole 217 of the relay fixing groove 215; when the relay is installed, the pins on the relay pass through the plug-in holes 217 and go deep into the plug-in terminals 332 for clamping connection, so that the relay is connected and conducted with the circuit on the FPC assembly 3 while the relay is fixed.

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 (5)

1. the utility model provides a square relay's elastic fixation buckle which characterized in that includes: the middle shell main body is provided with a relay fixing groove, a relay buckle is arranged in the relay fixing groove and comprises a first buckle piece and a second buckle piece, one end of the first buckle piece and one end of the second buckle piece are fixed on the middle shell main body and have elasticity, a first hollowed-out groove is formed in the first buckle piece, a first clamping lug is arranged on the inner wall of the first hollowed-out groove, the first clamping lug protrudes out of the plane where the first buckle piece is located, a second hollowed-out groove is formed in the second buckle piece, a second clamping lug is arranged on the inner wall of the second hollowed-out groove, and the second clamping lug protrudes out of the plane where the second buckle piece is located.

2. The elastic fixing clip of square relay as claimed in claim 1, wherein said first clipping projection has a first inclined plane inclined with respect to a vertical plane, said first inclined plane facing said second clipping plate.

3. The elastic fixing clip of the square relay as claimed in claim 2, wherein an end of the first clip piece away from the middle case main body has a second inclined plane inclined with respect to a vertical plane, the second inclined plane facing the second clip piece.

4. the elastic fixing clip of square relay as claimed in claim 3, wherein said second clipping projection has a third inclined plane inclined with respect to the vertical plane, said third inclined plane facing said first clipping plate.

5. The elastic fixing clip of square relay as claimed in claim 4, wherein the end of the second clip piece away from the middle case main body has a fourth inclined plane inclined with respect to the vertical plane, the fourth inclined plane facing the first clip piece.