CN210692451U

CN210692451U - Contact plate

Info

Publication number: CN210692451U
Application number: CN201922229345.5U
Authority: CN
Inventors: 肖明有; 何桃
Original assignee: Xiamen Yuxin Industry Co Ltd
Current assignee: Xiamen Yuxin Industry Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-06-05
Anticipated expiration: 2029-12-12

Abstract

The utility model relates to a contact plate, which comprises a first connecting plate and at least two extension arms, wherein the opposite side walls of the first connecting plate are provided with a placing groove, a compression spring and a sliding block are arranged in the placing groove, the sliding block protrudes out of the opening of the placing groove, the top wall of the protruding end of the sliding block is horizontally arranged, the bottom wall of the protruding end of the sliding block is obliquely arranged, and the higher side of the bottom wall is far away from the compression spring; the bottom wall of the first connecting plate is provided with a second connecting plate in a stacked mode, two opposite side walls, close to the sliding block, of the second connecting plate are vertically fixed with clamping strips, each clamping strip comprises a fixing portion and a clamping portion located at the top end of the corresponding fixing portion, the top end of each clamping portion extends to the top of the corresponding sliding block, each clamping portion comprises a fixing column and a plurality of clamping teeth close to the second connecting plate, the bottom walls of the clamping teeth are arranged horizontally, the top walls of the clamping teeth are arranged in an inclined mode, and the lower sides of the clamping teeth are; the bottom wall of one of the latch is tightly propped against the top wall of the sliding block. The utility model discloses have the effect that self energy consumption after the reduction contact plate circular telegram.

Description

Contact plate

Technical Field

The utility model belongs to the technical field of electronic components and specifically relates to a contact plate is related to.

Background

The contactor is an electric appliance which utilizes a coil to flow current to generate a magnetic field in industrial electricity to close a contact so as to control a load. In order to increase the heating current of the contactor, the heating current can be increased by alternating current by adopting a method of parallel operation of contactor contacts. The contact plate of the ac contactor is an electronic component, and generally includes a fixed contact support portion and a connection portion, and in order to increase a heat generation current, the thickness of the connection portion needs to be larger than that of the fixed contact support portion.

The utility model discloses a contact plate of contactor is disclosed in chinese utility model patent with publication number CN203055795U, including fixed contact supporting part and connecting portion, connecting portion turn over a constitution by the roughly flat electrically conductive metal sheet that has thickness to electrically conductive metal sheet turns over a back opposite face and pastes the setting mutually, and other one side of connecting portion except that turning over a department is provided with two at least and is an extension arm integrative and have the width with electrically conductive metal sheet, and the extension arm constitutes the fixed contact supporting part. The utility model discloses technical scheme has simple structure, improves the effect of electric current, effective reduction in production cost that generates heat.

In the prior art, similar to the above-mentioned contact plate, in the manufacturing process, the conductive metal plate is folded and the folded conductive metal plate is attached to the contact plate. However, in actual processing, since the conductive metal plate has elasticity, after the conductive metal plate is bent, it is difficult to make two opposite surfaces of the bent conductive metal plate fit with each other, and a certain gap always exists between the two due to the elasticity of the conductive metal plate itself. The existence of the gaps greatly improves the contact resistance between the two opposite surfaces of the conductive metal plate, so that the temperature of the contact plate is increased, and the self-energizing energy consumption of the contact plate is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a contact plate, it has the advantage that reduces self energy consumption of contact plate circular telegram back.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a contact plate comprises a first connecting plate and at least two extending arms with widths, wherein the extending arms are integrally formed on one side of the first connecting plate and form a fixed contact supporting part; the bottom wall of the first connecting plate is provided with a second connecting plate in a stacked mode, two opposite side walls, close to the sliding block, of the second connecting plate are vertically fixed with clamping strips, each clamping strip comprises a fixing portion and a clamping portion, the fixing portion is fixed with the second connecting plate, the clamping portion is located at the top end of the fixing portion, one end, far away from the fixing portion, of each clamping portion protrudes out of the top wall of the second connecting plate and extends to the top of the sliding block, each clamping portion comprises a fixing column and a plurality of clamping teeth integrally formed on one side, close to the sliding block, of the fixing column, the bottom walls of the clamping teeth are horizontally arranged, the top walls of the clamping teeth; the bottom wall of one of the latch is tightly propped against the top wall of the sliding block.

Through adopting above-mentioned technical scheme, pass through anchor clamps centre gripping with first connecting plate and second connecting plate together, at this in-process, the latch can constantly shift up, because the piece diapire that slides is the complex slope form with the roof of latch, consequently the latch can extrude the piece that slides in to the standing groove, and the compression spring in the standing groove this moment is the shrink state.

And when first connecting plate and second connecting plate lateral wall in opposite directions paste when tight, the latch can't continue to shift up this moment, and the sliding block can be in compression spring's effect part protrusion in the standing groove opening down for the sliding block roof supports tightly with the diapire of latch. Because the equal level setting of diapire of sliding block roof and latch, consequently the back is supported tightly to the diapire of sliding block roof and latch, latch and sliding block relatively fixed for first connecting plate and second connecting plate relatively fixed, and then make first connecting plate and second connecting plate keep the state of hugging closely.

At the moment, because no gap exists between the first connecting plate and the second connecting plate, the contact resistance between two opposite surfaces of the conductive metal plate (namely the first connecting plate and the second connecting plate) can be reduced, the power-on heat productivity of the contact plate is reduced, and the self energy consumption of the contact plate after power-on is reduced.

Further: one side of the first connecting plate, which is close to the second connecting plate, is provided with a positioning groove, and a positioning block which is matched with the positioning groove protrudes towards the positioning groove from the second connecting plate.

Through adopting above-mentioned technical scheme, can play the positioning action to first connecting plate and second connecting plate after constant head tank and the locating piece cooperation for the latch can not take place the horizontal slip, improves the joint stability of latch and sliding block, and then improves the stability of contact plate.

Further: the positioning groove and the positioning block are both in a cuboid shape.

Through adopting above-mentioned technical scheme, the locating piece of cuboid form and constant head tank make the locating piece card can not take place the rotation in the constant head tank after going into, not only play the positioning action, play limiting displacement moreover.

Further: the inner wall of the placing groove is provided with a sliding groove from the bottom of the placing groove to the opening direction of the placing groove, one end, close to the opening of the placing groove, of the sliding groove is fixed with an anti-falling block, and the sliding block is protruded towards the inside of the sliding groove to form a sliding block connected with the sliding groove in a sliding mode.

Through adopting above-mentioned technical scheme, the spout plays the guide effect with the slider, and the anticreep piece plays limiting displacement, can avoid the sliding block to break away from the standing groove completely under compression spring's thrust effect, guarantees that the sliding block part is located the standing groove, improves the stability of sliding block, and then improves the stability of contact plate.

Further: the standing groove tank bottom has first stand pipe and second stand pipe with the one side in opposite directions of sliding block protrusion respectively, first stand pipe inner wall and the laminating of second stand pipe outer wall each other, the clearance has between the one end that the standing groove tank bottom was kept away from to first stand pipe and the sliding block, the clearance has between the one end that the sliding block was kept away from to the second stand pipe and the standing groove tank bottom.

Through adopting above-mentioned technical scheme, when the sliding block slided, relative slip can take place between first stand pipe inner wall and the second stand pipe outer wall, played the guide effect to the sliding direction of sliding block, improved sliding block's slip stability.

Further: the first limiting pipe and the second limiting pipe are coaxial with the compression spring.

Through adopting above-mentioned technical scheme, first spacing pipe can overlap outside compression spring or overlap in compression spring with the spacing pipe of second, no matter how first spacing pipe and the spacing pipe of second establish with compression spring and all can play limiting displacement to compression spring, avoids compression spring to take place non-axis motion.

Further: a gap is formed between one side, far away from the fixing column, of the clamping tooth and the side wall of the first connecting plate.

Through adopting above-mentioned technical scheme, when the card tooth causes the surperficial coarse because of some reasons (for example the two processing precision low grade), the clearance between card tooth and the first connecting plate can avoid the two to block, makes things convenient for the card tooth to move up, makes things convenient for the second connecting plate to remove to first connecting plate direction, makes things convenient for the assembly of first connecting plate and second connecting plate.

Further: the top end of the clamping portion is lower than the top wall of the first connecting plate.

Through adopting above-mentioned technical scheme, avoid joint portion to occupy other electronic components's mounted position because of protrusion in first connecting plate roof, improve the stability of contact plate.

To sum up, the utility model discloses a following at least one useful technological effect:

1. by arranging the placing groove, the compression spring and the sliding block and arranging the second connecting plate and the clamping strip, the clamping teeth on the clamping strip can be matched with the sliding block, so that the second connecting plate can be kept in a relatively fixed state when being lifted to be tightly abutted against the first connecting plate, a gapless state is kept between the first connecting plate and the second connecting plate, the contact resistance between two opposite surfaces of the conductive metal plate (namely the first connecting plate and the second connecting plate) is reduced, the power-on heat productivity of the contact plate is reduced, and the self energy consumption of the contact plate after being powered on is reduced;

2. the positioning grooves and the positioning blocks are arranged, so that the sliding blocks are kept meshed with the clamping teeth on the clamping strips, and the stability of the contact plate is improved; the sliding groove and the sliding block are arranged, the anti-falling block plays a role in guiding, the anti-falling block plays a role in limiting, the sliding block is partially positioned in the placing groove, and the stability of the contact plate is improved;

3. through setting up first stand pipe and second stand pipe, can take place relative slip between first stand pipe inner wall and the second stand pipe outer wall, play the guide effect to the direction of sliding block, improve the stability of sliding block.

Drawings

FIG. 1 is an overall view of the present embodiment;

FIG. 2 is a schematic partial exploded view of the present embodiment;

FIG. 3 is a perspective cross-sectional view of FIG. 2;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is an enlarged schematic view of a portion B in fig. 3.

In the figure, 1, a first connecting plate; 2. an extension arm; 3. a fixed contact support section; 4. a placement groove; 5. a compression spring; 6. a sliding block; 7. a second connecting plate; 8. clamping the strip; 801. a fixed part; 802. a clamping part; 8021. fixing a column; 8022. clamping teeth; 9. positioning a groove; 10. positioning blocks; 11. a chute; 12. an anti-drop block; 13. a slider; 14. a first guide tube; 15. a second guide tube.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the present invention, a contact plate includes a first contact plate 1 having a rectangular parallelepiped shape, at least two extension arms 2 having a width are integrally formed on one side of the first contact plate, the number of the extension arms 2 is preferably two in this embodiment, and the two extension arms 2 constitute a fixed contact supporting portion 3.

Referring to fig. 2 and 3, the bottom wall of the first connecting plate 1 is provided with a rectangular positioning groove 9.

Referring to fig. 3 and 4, the opposite side walls of the first connecting plate 1 are provided with rectangular parallelepiped-shaped placing grooves 4. A compression spring 5 is arranged in the placing groove 4, and the compression spring 5 is in a compression state. One end of the compression spring 5, which is far away from the bottom of the placing groove 4, is provided with a sliding block 6, and two ends of the compression spring 5 are respectively abutted against the sliding block 6 and the bottom of the placing groove 4. The sliding block 6 is cuboid, the inner wall of the sliding block 6 is attached to the inner wall of the placing groove 4, and therefore the sliding block 6 can be connected with the inner wall of the placing groove 4 in a sliding mode.

A first guide pipe 14 and a second guide pipe 15 respectively protrude from one side of the bottom of the placing groove 4, which is opposite to the sliding block 6. The first guide tube 14 and the second guide tube 15 are disposed coaxially with the compression spring 5, in this embodiment, the compression spring 5 is sleeved outside the first guide tube 14 and the second guide tube 15, and in other embodiments, the compression spring 5 can also be sleeved inside the first guide tube 14 and the second guide tube 15.

The inner wall of the first guide pipe 14 is attached to the outer wall of the second guide pipe 15. The first guide pipe 14 is provided with a gap between one end far away from the bottom of the placing groove 4 and the sliding block 6, and the second guide pipe 15 is provided with a gap between one end far away from the sliding block 6 and the bottom of the placing groove 4, so that the first guide pipe 14 and the second guide pipe 15 can slide relatively in the placing groove 4.

The top wall and the diapire of standing groove 4 have all seted up spout 11 from 4 tank bottoms of standing groove to 4 opening directions of standing groove, and the length direction of spout 11 is parallel with compression spring 5's axis direction. The spout 11 is close to standing groove 4 open-ended one end and is fixed with anticreep piece 12, and

anticreep piece

12 and 1 integrated into one piece of first connecting plate, anticreep piece 12 make the slide close to standing groove 4 open-ended one end and seal. The sliding block 6 has the slider 13 of being connected with spout 11 slides towards protruding in the spout 11, and after the sliding block 6 removed 4 opening directions in standing groove, slider 13 can be spacing by anticreep piece 12 for sliding block 6 can not break away from standing groove 4 completely.

One end protrusion in standing groove 4's opening that compression spring 5 was kept away from to sliding block 6, sliding block 6 protrusion is the level setting in 4 open-ended one end roof of standing groove, and sliding block 6 protrusion is the slope setting in 4 open-ended one end diapalls of standing groove and its higher one side keeps away from compression spring 5, therefore sliding block 6 protrusion is right angle trapezoidal form in 4 open-ended one end of standing groove.

The bottom wall of the first connection plate 1 is provided with a rectangular parallelepiped second connection plate 7 in a stacked manner. The top wall of the second connecting plate 7 is tightly abutted to the bottom wall of the first connecting plate 1, so that the gap between the first connecting plate 1 and the second connecting plate 7 is extremely small, and the resistance between the first connecting plate 1 and the second connecting plate 7 is extremely low. The second connecting plate 7 is provided with a rectangular positioning block 10 protruding towards the positioning groove 9, and the positioning block 10 is attached to the inner wall of the positioning groove 9 to realize the matching relationship between the positioning block 10 and the positioning groove 9.

Referring to fig. 4 and 5, the second connecting plate 7 is provided with two vertical clamping strips 8 on two opposite side walls close to the sliding block 6. The clip strip 8 includes a fixing portion 801 fixed with the second connecting plate 7 and a clip portion 802 integrally formed on the top end of the fixing portion 801. The fixing portion 801 is rectangular and is integrally formed with the second connecting plate 7. One end of the clamping portion 802, which is far away from the fixing portion 801, protrudes out of the top wall of the second connecting plate 7 and extends to the top of the sliding block 6, and the top end of the clamping portion 802 is lower than the top wall of the first connecting plate 1, so that the top end of the clamping portion 802 is located between the top wall of the sliding block 6 and the top wall of the first connecting plate 1.

The fastening portion 802 includes a fixing post 8021 and a plurality of fastening teeth 8022 integrally formed on one side of the fixing post 8021 close to the sliding block 6. The fixing column 8021 is rectangular, the cross section of the latch 8022 is right-angled and triangular, and the latches 8022 are distributed from top to bottom at intervals. The bottom wall of the latch 8022 is horizontally arranged, the top wall of the latch 8022 is obliquely arranged, and the lower side of the top wall is far away from the fixing column 8021. The bottom wall of one of the latch 8022 abuts against the top wall of the sliding block 6, so that the clip strip 8 cannot move downwards, and the first connecting plate 1 and the second connecting plate 7 are kept in an abutting state.

A gap is formed between one side of the latch 8022, which is far away from the fixing column 8021, and the side wall of the first connecting plate 1, and the gap enables the latch 8022 not to be locked by the side wall of the first connecting plate 1 in the upward moving process.

The implementation principle of the embodiment is as follows:

when the first connecting plate 1 and the second connecting plate 7 are installed, the first connecting plate 1 and the second connecting plate 7 are clamped together by a clamp. In the process, the positioning block 10 is clamped into the positioning groove 9 to realize positioning.

Meanwhile, the latch 8022 also moves up continuously, and since the bottom wall of the sliding block 6 and the top wall of the latch 8022 are in a matched inclined shape, the latch 8022 extrudes the sliding block 6 into the placement groove 4, and the compression spring 5 in the placement groove 4 is in a contracted state at this time. When the first connecting plate 1 and the second connecting plate 7 are attached tightly, the latch 8022 cannot move upwards continuously, the sliding block 6 partially protrudes out of the opening of the placing groove 4 under the action of the compression spring 5, so that the top wall of the sliding block 6 is abutted tightly against the bottom wall of the latch 8022, the first connecting plate 1 and the second connecting plate 7 are fixed relatively, and the first connecting plate 1 and the second connecting plate 7 are kept attached tightly.

At this time, because the amount of the gap between the first connecting plate 1 and the second connecting plate 7 is extremely small and can be ignored, the contact resistance between the two opposite surfaces of the conductive metal plates (i.e. the first connecting plate 1 and the second connecting plate 7) is greatly reduced, the heat productivity of the contact plate when the contact plate is electrified is reduced, and the self energy consumption of the contact plate after the contact plate is electrified is reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A contact plate, includes first connecting plate (1) and integrated into one piece in at least two extension arms (2) that have a width of first connecting plate (1) one side, extension arm (2) constitute fixed contact supporting part (3), its characterized in that: the device comprises a first connecting plate (1) and a second connecting plate (4), wherein the first connecting plate is provided with a placing groove (4), a compression spring (5) is arranged in the placing groove (4), one end, far away from the bottom of the placing groove (4), of the compression spring (5) is provided with a sliding block (6) connected with the placing groove (4) in a sliding mode, one end, far away from the compression spring (5), of the sliding block (6) protrudes out of an opening of the placing groove (4), the top wall, protruding out of the opening of the placing groove (4), of one end of the sliding block (6) is horizontally arranged, the bottom wall, protruding out of the opening of the placing groove (4), of the end is obliquely arranged, and the higher side of the sliding block is far;

the bottom wall of the first connecting plate (1) is provided with a second connecting plate (7) in a stacked mode, two opposite side walls, close to the sliding block (6), of the second connecting plate (7) are vertically fixed with clamping strips (8), each clamping strip (8) comprises a fixing portion (801) fixed with the second connecting plate (7) and a clamping portion (802) located at the top end of the corresponding fixing portion (801), one end, far away from the fixing portion (801), of each clamping portion (802) protrudes out of the top wall of the second connecting plate (7) and extends to the top of the corresponding sliding block (6), each clamping portion (802) comprises a fixing column (8021) and a plurality of clamping teeth (8022) integrally formed on one side, close to the corresponding sliding block (6), of the fixing column (8021), the bottom wall of each clamping tooth (8022) is horizontally arranged, the top wall of each clamping tooth (8022) is obliquely arranged, and the lower side of each clamping tooth (;

the bottom wall of one of the latch teeth (8022) is tightly propped against the top wall of the sliding block (6).

2. A touch plate as recited in claim 1, wherein: one side of the first connecting plate (1) close to the second connecting plate (7) is provided with a positioning groove (9), and a positioning block (10) matched with the positioning groove (9) protrudes from the second connecting plate (7) towards the positioning groove (9).

3. A touch plate as recited in claim 2, wherein: the positioning groove (9) and the positioning block (10) are both in a cuboid shape.

4. A touch plate as recited in claim 1, wherein: the inner wall of the placing groove (4) is provided with a sliding groove (11) from the bottom of the placing groove (4) to the opening direction of the placing groove (4), one end, close to the opening of the placing groove (4), of the sliding groove (11) is fixed with an anti-falling block (12), and a sliding block (13) connected with the sliding groove (11) in a sliding mode protrudes towards the sliding groove (11) of the sliding block (6).

5. A touch plate as recited in claim 1, wherein: standing groove (4) tank bottom and sliding block (6) one side in opposite directions bulge respectively and have first stand pipe (14) and second stand pipe (15), first stand pipe (14) inner wall and second stand pipe (15) outer wall laminate each other, first stand pipe (14) are kept away from and are had the clearance between one end of standing groove (4) tank bottom and sliding block (6), the clearance has between one end of sliding block (6) and standing groove (4) tank bottom is kept away from in second stand pipe (15).

6. A contact plate as claimed in claim 5, wherein: the first guide pipe (14) and the second guide pipe (15) are coaxial with the compression spring (5).

7. A touch plate as recited in claim 1, wherein: a gap is reserved between one side, far away from the fixing column (8021), of the latch (8022) and the side wall of the first connecting plate (1).

8. A touch plate as recited in claim 1, wherein: the top end of the clamping part (802) is lower than the top wall of the first connecting plate (1).