CN209766259U

CN209766259U - Integrated static contact

Info

Publication number: CN209766259U
Application number: CN201920679285.4U
Authority: CN
Inventors: 程福涛; 李登芳
Original assignee: Zhejiang Jian Shen Electrical Appliances Co Ltd
Current assignee: Zhejiang Jian Shen Electrical Appliances Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2019-12-10
Anticipated expiration: 2029-05-13

Abstract

The utility model relates to the technical field of contact elements and discloses an integrated static contact, which comprises a contact blade and a contact bridge, wherein the contact bridge comprises a connecting sheet and an extending sheet, and a through hole is formed on the connecting sheet; the extension sheet is provided with a bulge matched with the contact blade, and the contact blade is arranged on the bulge through an installation structure; the mounting structure comprises a containing groove and a positioning assembly, wherein the containing groove is formed on the protrusion and can be used for containing the contact blade; the positioning assembly fixes the contact blade. The utility model has the advantages of it is following and effect: the new mechanical structure of this scheme utilization, the storage tank that forms on the arch of extension piece provides the space for the holding of contact piece, and the cooperation of locating plate and constant head tank realizes further fixed after the contact piece installation to can increase contact and bellied area of contact when brazing, make contact and bellied connection inseparabler, appear contact failure problem and influence contact element's electrical property when avoiding the welding heating.

Description

integrated static contact

Technical Field

The utility model belongs to the technical field of the technique of contact element and specifically relates to a static contact of integration is related to.

Background

The contact element can be widely applied to relays, contactors, load switches, medium and low voltage circuit breakers, switching appliances such as household appliances and automobile appliances, low voltage appliance products and the like; with the development of switching appliances toward high voltage, large current, miniaturization and long service life, the requirements on the electrical properties of contact materials are higher and higher.

In the prior art, the welded contact element is usually formed by soldering a sheet-like contact to a contact bridge; brazing, which is a welding method that after brazing filler metal lower than the melting point of a weldment and the weldment are heated to the melting temperature of the brazing filler metal at the same time, the liquid brazing filler metal is used for filling the gaps of solid workpieces to connect the metals.

The welding surface of the sheet contact which is welded at present is a plane, and the welding surface of the contact bridge is in an arc-shaped bulge corresponding to the welding surface of the sheet contact, so that the contact area of the contact and the contact bridge is limited, the problem of poor contact is caused during welding heating, the electrical property of a contact element can be influenced, the electrical appliance is caused to fail prematurely or safety accidents occur, and the improvement is still needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the not enough of prior art existence, the utility model provides an integration static contact makes the contact and touches the more zonulae occludens of bridge, appears contact failure problem when avoiding the welding heating.

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

an integrated static contact comprises a contact blade and a contact bridge, wherein the contact bridge comprises a connecting sheet and an extending sheet, and a through hole is formed in the connecting sheet; the extension sheet is provided with a bulge matched with the contact blade, and the contact blade is arranged on the bulge through an installation structure; the mounting structure comprises a containing groove and a positioning assembly, wherein the containing groove is formed on the protrusion and can be used for containing the contact blade; the positioning assembly fixes the contact blade.

through adopting above-mentioned technical scheme, the storage tank that forms on the arch of extension piece provides the space for the holding of contact piece, and the positioning assembly is supplementary to realize the further fixed after the contact piece installation to can increase contact and bellied area of contact when brazing, make contact and bellied connection inseparabler, appear contact failure problem and influence the electrical property of contact element when avoiding the welding heating.

The utility model discloses further set up to: the positioning assembly comprises an inserting sheet and a slot, the slot is formed on the contact sheet, and the inserting sheet is fixed in the accommodating groove and inserted into the slot; the inserting sheet is matched with the movable structure to position the contact blade.

By adopting the technical scheme, the slot formed on the contact blade is correspondingly inserted with the insertion sheet in the accommodating groove, so that the contact blade is accurately positioned in the accommodating groove to realize primary positioning; the inserting pieces are matched with the movable structure, so that the contact blades are further fixed in the accommodating groove through the movable structure, and the brazing operation is facilitated.

The utility model discloses further set up to: the movable structure comprises a connecting plate, a positioning plate and a positioning groove, the connecting plate is movably connected in the contact piece, an installation groove is formed in the accommodating groove, the positioning plate is fixedly connected with the connecting plate and positioned outside the contact piece, and the positioning plate is accommodated in the installation groove; the locating slot is formed at one side of the mounting groove, and the locating plate is inserted and positioned in the locating slot.

Through adopting above-mentioned technical scheme, the locating plate of fixing on the connecting plate is located the mounting groove, when the connecting plate was movable in the contact piece, can drive the locating plate and slide to the constant head tank from the mounting groove to realize the further fixed of contact piece in the storage tank through the locating plate butt in the constant head tank.

The utility model discloses further set up to: the contact blade is internally provided with a movable groove, the connecting plate is accommodated and movably connected with the movable groove, the movable groove is communicated with the slot, the connecting plate penetrates through the movable groove and is positioned above the slot, and the inserting piece drives the connecting plate to move.

By adopting the technical scheme, the movable groove formed in the contact blade provides space for the sliding of the connecting plate; the connecting plate wears to locate the one end in the activity groove of slot intercommunication, and is located the top of slot, from this when the inserted sheet is pegged graft in the slot, can be by the slip of inserted sheet drive connecting plate, then the cooperation of control locating plate and constant head tank reaches the purpose of fixed contact blade.

The utility model discloses further set up to: an inclined surface is formed on the side wall of the connecting plate corresponding to the inserting sheet, and the inclined surface is close to one side of one end of the inserting sheet, which is close to the movable groove, in an inclined mode.

Through adopting above-mentioned technical scheme, the inclined plane that forms on the lateral wall that the connecting plate corresponds the inserted sheet can make the process that inserted sheet drive connecting plate slided change in the realization.

The utility model discloses further set up to: the insert is provided with a chamfer plane matched with the inclined plane.

Through adopting above-mentioned technical scheme, form on the inserted sheet with inclined plane complex scarf, make the structure of inserted sheet and connecting plate cooperation motion more reasonable.

The utility model discloses further set up to: the connecting piece and the extending piece are integrally formed.

Through adopting above-mentioned technical scheme, connection piece and extension piece integrated into one piece have avoided traditional static contact to need the problem of installation riveting subassembly, make the production of static contact more convenient.

The utility model discloses further set up to: the contact bridge further comprises a wiring board formed on one side of the connecting sheet in an extending mode, and a fixing hole is formed in the wiring board.

By adopting the technical scheme, the connecting plate is formed by extending the connecting plate, the circuit can be directly welded on the connecting plate and can also penetrate into the fixing hole formed on the connecting plate, and the connecting plate is fixed on the connecting plate by extruding a bolt.

To sum up, the utility model discloses following beneficial effect has:

1. The accommodating groove formed on the protrusion of the extension piece provides a space for accommodating the contact blade, and the positioning assembly assists in further fixing the contact blade after the contact blade is installed, so that the contact area of the contact and the protrusion can be increased when soldering is carried out, the contact and the protrusion are connected more tightly, and the problem of poor contact during welding and heating is avoided from affecting the electrical property of a contact element;

2. The positioning plate fixed on the connecting plate is positioned in the mounting groove, and when the connecting plate moves in the contact piece, the positioning plate can be driven to slide from the mounting groove to the positioning groove, so that the contact piece is further fixed in the accommodating groove by abutting against the positioning groove;

3. The inclined plane that forms on the lateral wall that the connecting plate corresponds the inserted sheet can make the process that inserted sheet drive connecting plate slided change in realizing, forms on the inserted sheet with inclined plane complex scarf, makes the structure of inserted sheet and connecting plate cooperation motion more reasonable.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic partial exploded view highlighting the engagement of the contact blade with the projection of the present embodiment;

FIG. 3 is a schematic view of the contact blade of the present embodiment;

FIG. 4 is a cross-sectional view of the contact blade of this embodiment shown mounted to a projection in mating relation;

Fig. 5 is an enlarged schematic view of a portion a in fig. 4.

Reference numerals: 1. a contact blade; 11. a movable groove; 2. contacting the bridge; 21. connecting sheets; 211. a through hole; 22. an extension piece; 221. a protrusion; 23. a wiring board; 231. a fixing hole; 3. a mounting structure; 4. a containing groove; 41. mounting grooves; 5. a positioning assembly; 51. inserting sheets; 511. a chamfer plane; 52. a slot; 6. a movable structure; 61. a connecting plate; 611. an inclined surface; 62. positioning a plate; 63. and (6) positioning a groove.

Detailed Description

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

An integrated static contact comprises a contact blade 1 and a contact bridge 2, wherein the contact bridge 2 comprises a connecting sheet 21, an extending sheet 22 and a wiring board 23 which are integrally formed, the extending sheet 22 extends to form one side of the connecting sheet 21, and the wiring board 23 extends to form the other side, opposite to the extending sheet 22, of the connecting sheet 21; the connecting piece 21 is provided with a through hole 211, and the wiring board 23 is provided with a fixing hole 231; the integrally formed connecting sheet 21 and the extending sheet 22 avoid the problem that riveting components need to be installed on the traditional static contact, so that the production of the static contact is more convenient.

as shown in fig. 1 and 2, the extension blade 22 is formed with a protrusion 221 for engaging with the contact blade 1, and the contact blade 1 is mounted on the protrusion 221 through the mounting structure 3; the mounting structure 3 includes a receiving groove 4 and a positioning assembly 5, the receiving groove 4 is formed on the protrusion 221 and is used for receiving the contact blade 1, so that the contact blade 1 is initially positioned on the protrusion 221, and the positioning assembly 5 further fixes the contact blade 1.

As shown in fig. 2 and 4, the positioning assembly 5 includes two insertion pieces 51, and the two insertion pieces 51 are fixed at two opposite ends of the accommodating groove 4.

As shown in fig. 3 and 4, the positioning assembly 5 further includes slots 52, the two slots 52 are respectively formed at two ends of the bottom of the contact blade 1, the insertion pieces 51 can be inserted into the corresponding slots 52, and after the contact blade 1 is accurately positioned in the accommodating slot 4 under the cooperation of the insertion pieces 51 and the slots 52, the contact blade 1 is further positioned by the movable structure 6 engaged with the insertion pieces 51, so that the contact blade 1 is stably fixed in the accommodating slot 4.

As shown in fig. 3 and 4, the movable structure 6 includes an "L" shaped connecting plate 61, two opposite "L" shaped movable slots 11 are formed in the contact blade 1 and located inside the two slots 52, the connecting plate 61 is accommodated in the movable slot 11 and can move in the movable slot 11 along the horizontal direction, the upper portion of the movable slot 11 is communicated with the slots 52, the connecting plate 61 is inserted into the movable slot 11 and located above the slots 52, and the connecting plate 61 can be driven to move when the insertion piece 51 is inserted into the slots 52.

as shown in fig. 4 and 5, the connecting plate 61 is formed with an inclined surface 611 on the side wall corresponding to the insertion piece 51, one end of the inclined surface 611 close to the insertion piece 51 is inclined toward the side close to the movable slot 11, and the insertion piece 51 is formed with a chamfered surface 511 engaged with the inclined surface 611, so that when the insertion piece 51 is inserted into the insertion slot 52, the chamfered surface 511 abuts against the inclined surface 611, thereby pushing the connecting plate 61 to move toward the side away from the insertion piece 51.

As shown in fig. 4, the movable structure 6 further includes a positioning plate 62 and a positioning slot 63, two opposite mounting slots 41 are formed in the accommodating slot 4 and located inside the two insertion pieces 51, the positioning plate 62 is fixedly connected to the lower portion of the connecting plate 61 and located outside the contact blade 1, the positioning plates 62 on the two connecting plates 61 extend in opposite directions, and the positioning plates 62 are accommodated in the mounting slots 41; the positioning groove 63 is formed at one side of the mounting groove 41, and when the connecting plate 61 moves, the positioning plate 62 can be driven to be inserted into the positioning groove 63, so that the positioning can be abutted to the top wall of the positioning groove 63, and the positioning of the positioning plate 62 in the positioning groove 63 is realized.

The specific operation flow of this embodiment is as follows:

When the contact blade 1 is positioned on the extension piece 22, firstly, the contact blade 1 is accommodated in the accommodating groove 4, the insertion piece 51 is correspondingly inserted into the slot 52, at this time, the positioning plate 62 is accommodated in the mounting groove 41, the top of the insertion piece 51 abuts against the bottom of the connecting plate 61 penetrating through one end of the slot 52, the contact blade 1 is pressed downwards, the insertion piece 51 is upwards inserted into the top of the slot 52, the connecting plate 61 moves towards one side far away from the insertion piece 51 under the matching of the inclined surface 611 and the inclined plane 511, and the positioning plate 62 moves towards one side close to the positioning groove 63; when the insertion piece 51 abuts against the top of the slot 52, the positioning plate 62 is accommodated in the positioning slot 63 and abuts against the top wall of the positioning slot 63, thereby achieving stable engagement of the contact blade 1 and the protrusion 221, and enabling the contact blade 1 and the protrusion 221 to be connected more tightly during soldering.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. the utility model provides an integration static contact, includes contact blade (1) and touches bridge (2), its characterized in that: the contact bridge (2) comprises a connecting piece (21) and an extending piece (22), wherein a through hole (211) is formed in the connecting piece (21); the extension blade (22) is provided with a projection (221) matched with the contact blade (1), and the contact blade (1) is mounted on the projection (221) through a mounting structure (3); the mounting structure (3) comprises a containing groove (4) and a positioning assembly (5), wherein the containing groove (4) is formed on the protrusion (221) and can be used for containing the contact blade (1); the positioning assembly (5) fixes the contact blade (1).

2. An integral static contact as claimed in claim 1, wherein: the positioning assembly (5) comprises an inserting sheet (51) and an inserting groove (52), the inserting groove (52) is formed in the contact blade (1), and the inserting sheet (51) is fixed in the accommodating groove (4) and inserted into the inserting groove (52); the inserting sheet (51) is matched with the movable structure (6) to position the contact blade (1).

3. An integral static contact as claimed in claim 2, wherein: the movable structure (6) comprises a connecting plate (61), a positioning plate (62) and a positioning groove (63), the connecting plate (61) is movably connected in the contact blade (1), an installation groove (41) is formed in the accommodating groove (4), the positioning plate (62) is fixedly connected to the connecting plate (61) and located outside the contact blade (1), and the positioning plate (62) is accommodated in the installation groove (41); the positioning groove (63) is formed in one side of the mounting groove (41), and the positioning plate (62) is spliced and positioned in the positioning groove (63).

4. An integral static contact as claimed in claim 3, wherein: a movable groove (11) is formed in the contact blade (1), the connecting plate (61) is accommodated and movably connected to the movable groove (11), the movable groove (11) is communicated with the slot (52), the connecting plate (61) penetrates through the movable groove (11) and is located above the slot (52), and the inserting piece (51) drives the connecting plate (61) to move.

5. An integral static contact as claimed in claim 4, wherein: an inclined surface (611) is formed on the side wall of the connecting plate (61) corresponding to the insertion sheet (51), and one end, close to the insertion sheet (51), of the inclined surface (611) inclines towards one side close to the movable groove (11).

6. An integral static contact as claimed in claim 5, wherein: the inserting piece (51) is provided with a chamfer surface (511) matched with the inclined surface (611).

7. An integral static contact as claimed in claim 1, wherein: the connecting piece (21) and the extending piece (22) are integrally formed.

8. an integral static contact as claimed in claim 1, wherein: the contact bridge (2) further comprises a wiring board (23) formed on one side of the connecting sheet (21) in an extending mode, and a fixing hole (231) is formed in the wiring board (23).