CN214588630U - Connection structure and relay of end are drawn forth with load to relay base - Google Patents

Abstract

The utility model discloses a connection structure of a relay base and a load leading-out end and a relay, wherein the connection structure comprises the base of the relay and the load leading-out end, the base is provided with an insertion hole, and the load leading-out end is inserted in the insertion hole; the method is characterized in that: the first surface of the load leading-out end is provided with a first convex part, the inner side surface of the insertion hole is correspondingly provided with a groove, the first convex part is meshed with the groove, and one end of the first convex part penetrates through the groove along the insertion direction of the load leading-out end and is set to be a tilting part tilting and abutting against the edge of the groove. The utility model discloses can prevent that the load from drawing forth the end and taking place to rotate and draw forth the end to the load and play the stopping effect to the installation stress that prevents the load wire of customer end or copper bar production causes the load to draw forth the end not hard up and influence the contact reliability of relay internal contact, simultaneously, the utility model discloses can also draw forth the end to the load and play preliminary fixed, prevent to take place to shift before the point is glued.

Description

Connection structure and relay of end are drawn forth with load to relay base

Technical Field

The utility model relates to a relay field especially relates to a connection structure and relay of end are drawn forth with load to relay base.

Background

A relay is an electronic control device, and is an electric appliance that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) meets a predetermined requirement.

A high current relay is one type of relay that has a number of load terminals for electrical connection with load wires or copper bars of a client. When a large-current relay is installed, the sectional area of a load wire or a copper bar of a client is large, so that the rigidity is high, the flexibility is low, when the load leading-out end of the relay is locked, the installation stress is easily generated, the load leading-out end is loosened, the contact state of a contact inside the relay is influenced, the product parameters are changed, and the contact is ablated, the temperature is excessively increased and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that prior art exists, provide a connection structure and relay of end are drawn forth with the load to relay base, its installation stress that can prevent the load wire of customer end or copper bar production influences the contact reliability of relay contact.

The utility model provides a technical scheme that its technical problem adopted is: a connection structure of a relay base and a load leading-out end comprises a base of a relay and the load leading-out end, wherein the base is provided with an insertion hole, and the load leading-out end is inserted in the insertion hole; the first surface of the load leading-out end is provided with a first convex part, the inner side surface of the insertion hole is correspondingly provided with a groove, the first convex part is meshed with the groove, and one end of the first convex part penetrates through the groove along the insertion direction of the load leading-out end and is set to be a tilting part tilting and abutting against the edge of the groove.

Further, the first surface is one of two opposite surfaces of the load leading-out end in the thickness direction; the number of the first convex parts is a plurality of, the first convex parts are distributed at intervals along the width direction of the load leading-out end, the number of the grooves is a plurality of, and the grooves correspond to the first convex parts one to one.

Further, the first protrusion has a second surface facing away from the first surface, and the distance between the second surface and the first surface is gradually reduced along the insertion direction.

Furthermore, at least one of two faces of the load leading-out end, which are back to each other in the width direction, is provided with a barb, and the barb is clamped on the side face of the insertion hole where the load leading-out end is located.

Furthermore, the number of the load leading-out ends and the number of the inserting holes are both a plurality, and the load leading-out ends correspond to the inserting holes one by one; the first surface of at least one load leading-out end is also provided with a second convex part, the second convex part and the first convex part are distributed along the length direction of the load leading-out end, and the second convex part is positioned on one side of the first convex part far away from the tilting part of the first convex part and is meshed with the corresponding groove.

Further, the second protrusion has a third surface facing away from the first surface, and the distance between the third surface and the first surface is gradually reduced along the insertion direction.

Furthermore, the base is in one side at the portion place of cocking is equipped with the edge the extension board that the cartridge direction of end was drawn forth to the load, the end is drawn forth to the load and a face that its first surface carried on the back mutually passes lean on this extension board behind the cartridge hole, and this extension board is drawn forth the both sides on the width direction of end at the load and is equipped with spacing portion respectively.

Further, the size of the limiting part in the thickness direction of the load leading-out end is smaller than the thickness of the load leading-out end; the number of the load leading-out ends and the number of the inserting holes are a plurality of, the load leading-out ends correspond to the inserting holes one to one, and the extending plates are provided with retaining walls between the adjacent load leading-out ends.

Furthermore, the extension plate is provided with a first stud hole, the load leading-out end is provided with a second stud hole, and the first stud hole corresponds to the second stud hole; an annular first dispensing groove is formed in the periphery of a first stud hole of one side, back to the load leading-out end, of the extension plate, and the first dispensing groove is communicated with the first stud hole in the inner side of the extension plate; and a second glue dispensing groove is formed in the insertion hole of the base.

The utility model provides a relay in addition, include as above the utility model discloses a relay base and load draw forth the connection structure of end.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. because the first surface that the end was drawn forth to the load is equipped with first convex part, the downthehole side correspondence of cartridge is equipped with the recess, first convex part and groove engagement, and first convex part one end is drawn forth the cartridge direction of end along the load and is passed the recess to be established into the perk and support in the perk portion at recess edge, make the utility model discloses can prevent that the load from drawing forth the end and taking place to rotate and draw forth the end to the load and play the stopping effect, thereby prevent that the installation stress that load wire or the copper bar of customer end produced from arousing that the load draws forth the end not hard up and influence the contact reliability of relay internal contact, simultaneously, the utility model discloses can also draw forth the end to the load and play tentatively fixed, prevent to take place to shift before the point glues.

2. The quantity of first convex part is a plurality of, with a plurality of recess one-to-ones, can further improve the utility model discloses draw forth the fixed effect of end to the load.

3. The first convex part has a second surface deviating from the first surface, the distance between the second surface and the first surface is along the insertion direction is gradually reduced, so that each load leading-out end is convenient to insert into the base during assembly, plastic scraps can be prevented from being generated, the generated pretightening force is larger along with the increase of the assembly depth, the load leading-out end is made to be attached to the base datum plane, the height consistency and the centering performance of the contact are guaranteed, the stability of relay parameters is improved, and meanwhile, the next-step split riveting action is facilitated.

4. At least one of two faces that the end was drawn forth to the load carried on the back mutually on its width direction is equipped with the barb, and this barb card is drawn forth the cartridge hole side at end place in the load to further draw forth the end to play the stopping effect to the load.

5. The second convex part is arranged, so that the stability of the load leading-out end can be enhanced, and the situation that the load leading-out end is in an unstable state due to the fact that only the first convex part supports the seesaw effect caused by the support of the first convex part is prevented. The second projection has a third surface facing away from the first surface, and the distance between the third surface and the first surface is gradually reduced along the inserting direction, so that the load leading-out terminal is convenient to insert into the base when being assembled.

6. The limiting part is arranged to wrap and support the load leading-out end, so that the movement of the load leading-out end is further limited. Particularly, the size of the limiting part in the thickness direction of the load leading-out end is smaller than the thickness of the load leading-out end, so that the limiting effect is achieved, and the installation by customers is facilitated. And a retaining wall is designed between the adjacent load leading-out ends, so that short circuit can be prevented.

7. The first dispensing groove enables the load leading-out end, the stud and the base to be dispensed and then connected into a whole, and therefore installation stress is dispersed.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment, and the connection structure of the relay base and the load leading-out terminal and the relay are not limited to the embodiment.

Drawings

Fig. 1 is an exploded view of the connection structure of the present invention (arrows in the figure indicate the direction of insertion of load terminals);

FIG. 2 is a front view of one of the load terminals of the present invention prior to being split and riveted;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a front view of one of the load terminals of the present invention after being split and riveted;

FIG. 5 is an enlarged schematic view of portion B of FIG. 4;

fig. 6 is a front view of the base of the present invention;

FIG. 7 is an enlarged schematic view of portion C of FIG. 6;

fig. 8 is a schematic perspective view of the connection structure of the present invention;

FIG. 9 is an enlarged schematic view of portion D of FIG. 8;

fig. 10 is a schematic perspective view of a relay according to the present invention;

fig. 11 is a front view of the relay of the present invention;

fig. 12 is an E-E cross-sectional view of the relay of the present invention;

figure 13 is a cross-sectional F-F view of the relay of the present invention;

fig. 14 is a bottom view of the relay of the present invention;

fig. 15 is a G-G cross-sectional view of the relay of the present invention.

Detailed Description

In an embodiment, please refer to fig. 1 to fig. 15, the connection structure of a relay base and a load terminal of the present invention includes a base 1 and a load terminal 2 of a relay, the base 1 is provided with an insertion hole 11, and the load terminal 2 is inserted into the insertion hole 11. The base 1 is vertical, and the load leading-out end 2 is horizontal. The first surfaces 25 of the load terminals 2 are respectively provided with first protrusions 21, the inner side surfaces of the insertion holes 11 are correspondingly provided with grooves 111, the first protrusions 21 are engaged with the grooves 111, and one end of each first protrusion 21 passes through the groove 111 along the insertion direction of the load terminal 2 and is configured as a tilting portion 212 which tilts (specifically, but not limited to, a split riveting manner) and abuts against the edge of the groove 111. The first protrusion 21 is specifically a long-strip-shaped boss structure and is located in the length direction of the load leading-out terminal 2. The number of the load leading-out terminals 2 and the number of the insertion holes 11 are several, the load leading-out terminals 2 correspond to the insertion holes 11 one by one, and specifically, the number of the load leading-out terminals 2 and the number of the insertion holes 11 are two, but not limited to this.

In this embodiment, the first surface 25 is one of two opposite surfaces of the load terminal 2 in the thickness direction. Since the load terminal 2 is horizontal, the first surface 25 is an upper surface of the load terminal 2. The number of the first protrusions 21 is several, the first protrusions 21 are distributed at intervals along the width direction of the load leading-out terminal 2, the number of the grooves 111 is several, and the grooves 111 correspond to the first protrusions 21 one by one.

In this embodiment, the first protrusion 21 has a second surface 211 facing away from the first surface 25, and the distance between the second surface 211 and the first surface 25 decreases in the insertion direction. The second surface 211 is an upper surface of the first protrusion 21, and the second surface 211 is an inclined surface, so that the first protrusion 21 has a trapezoidal boss structure with a lower end and a higher end.

In this embodiment, at least one of two opposite surfaces of the load leading-out end 2 in the width direction thereof is provided with a barb 22, and the barb 22 is clamped on the side surface of the insertion hole 11 where the load leading-out end 2 is located.

In this embodiment, the first surface 25 of the load terminal 2 with a longer length is further provided with a second protrusion 23, the second protrusion 23 and the first protrusion 21 are distributed along the length direction of the load terminal 2, and the second protrusion 23 is located on a side of the first protrusion 21 away from the raised portion 212 and is engaged with the corresponding groove 111. The second protrusion 23 is also in the form of an elongated protrusion and is located in the longitudinal direction of the load terminal 2. The number of the second protrusions 23 is several, and the second protrusions 23 correspond to the first protrusions 21 one by one. In other embodiments, the first surface of each load terminal is provided with the second protrusion.

In this embodiment, the second protrusion 23 has a third surface 231 facing away from the first surface 25, and the distance between the third surface 231 and the first surface 25 decreases along the inserting direction. The third surface 231 is an upper surface of the second protrusion 23, and the third surface 231 is an inclined surface, so that the second protrusion 23 has a trapezoid boss structure with a lower end and a higher end.

In this embodiment, the base 1 is provided with an extending plate 12 extending along the insertion direction of the load terminals 2 on the side where the tilting portion 212 is located, one surface of the load terminals 2 opposite to the first surface 25 of the load terminals passes through the insertion hole 11 and then abuts against the extending plate 12, the extending plate 12 is provided with a limiting portion 121 on each side of the load terminals 2 in the width direction, the limiting portion 121 is in a long protruding rib structure and is located in the length direction of the load terminals 2, and the dimension of the limiting portion 121 in the thickness direction of the load terminals 2 (i.e., the height of the limiting portion 121) is smaller than the thickness of the load terminals 2. The extension plate 12 is provided with a retaining wall 122 between the adjacent load terminals 2.

In this embodiment, the extension plate 12 is provided with a plurality of first stud holes 123, the plurality of load terminals 2 are respectively provided with second stud holes 24, the plurality of first stud holes 123 correspond to the second stud holes 24 of the plurality of load terminals 2 one to one, and the studs 3 can pass through the first stud holes 123 (the studs 3 are matched with nuts to connect the load terminals 2 with load wires or copper bars of a client). An annular first dispensing groove 124 is respectively formed on the periphery of each first stud hole 123 of the extension plate 12 on the side opposite to the load leading-out end 2, and as shown in fig. 14, the first dispensing groove 124 is communicated with the first stud hole 123 on the inner side thereof. A second dispensing groove 112 is formed in each insertion hole 11 of the base 1, as shown in fig. 15.

The utility model discloses a connection structure of end is drawn forth with load to relay base, its load draw forth end 2 and set up first convex part 21 and split and rivet into behind perk portion 212, in X, Y, Z three is all drawn forth end 2 to the load and has carried on spacingly, fixes it on base 1, can prevent effectively that the transport is glued before the point or the point is glued the back and is baked the in-process, and the load is drawn forth end 2 and is for the skew design position of base 1, influences product property ability. Meanwhile, the contact reliability of the internal contact of the relay is prevented from being influenced by the looseness of the load leading-out end 2 caused by the installation stress generated by a load lead or a copper bar of the client. The first convex part 21 is split and riveted and then is further subjected to dispensing treatment, so that a dual fixing effect is achieved, the binding force between the base 1 and the load leading-out end 2 is enhanced, the influence of the installation stress of an external load wire or a copper bar is reduced to the maximum extent, and the working reliability of the relay is ensured.

The first convex part 21 and the second convex part 23 are of trapezoidal boss structures with low outer parts and high inner parts, so that the load leading-out end 2 can be conveniently inserted into the base 1 during assembly, plastic scraps can be prevented from being generated, the generated pretightening force is larger along with the increase of the installation depth, the load leading-out end 2 is enabled to be tightly attached to the reference surface of the base 1, the height consistency and the centering performance of contacts are ensured, and the stability of relay parameters is improved; meanwhile, the next riveting splitting action is facilitated.

The limiting part 121 embraces the load leading-out end 2 to prevent shaking, and glue is dispensed on the first glue dispensing groove 124, so that the stud 3, the load leading-out end 2 and the base 1 are combined into a whole, and the stress area is increased. When the nut is screwed, the torsion can be transmitted to the whole base 1 and the shell 4 of the relay; in the use process, the torsion, the pulling force and the like of the load lead can be dispersed to the base 1 and the shell 4, the problem that the load leading-out end 2 and the base 1 are fixed in a single-point manner in the prior art is solved, and the influence of the installation torsion and the stress of the load lead on the performance of the relay is eliminated.

The barb 22 designed on the load leading-out end 2 is in interference fit after being pressed into the base 1, and the barb 22 is clamped into the base 1 to achieve the anti-withdrawal effect.

Referring to fig. 10-15, a relay of the present invention includes a housing 4, a core part 5, and a connection structure between a relay base and a load terminal according to the present invention. The shell 4 is connected and matched with the base 1, and the movement part 5 is contained in a shell cavity of the shell. The movement portion 5 includes a magnetic circuit portion, a stationary spring portion, and a movable spring portion.

The utility model discloses a relay, it all is the same with prior art or can adopt prior art to realize not to relate to the part.

The above-mentioned embodiment is only used for further explaining the utility model discloses a connection structure and relay of end is drawn forth with load to relay base, nevertheless the utility model discloses do not confine the embodiment to, all be according to the utility model discloses a technical entity all falls into the protection scope of the technical scheme of the utility model to any simple modification, the equivalent change and the decoration that the above embodiment was done.

Claims (10)

1. A connection structure of a relay base and a load leading-out end comprises a base of a relay and the load leading-out end, wherein the base is provided with an insertion hole, and the load leading-out end is inserted in the insertion hole; the method is characterized in that: the first surface of the load leading-out end is provided with a first convex part, the inner side surface of the insertion hole is correspondingly provided with a groove, the first convex part is meshed with the groove, and one end of the first convex part penetrates through the groove along the insertion direction of the load leading-out end and is set to be a tilting part tilting and abutting against the edge of the groove.

2. The relay socket and load outlet connection structure according to claim 1, wherein: the first surface is one of two opposite surfaces of the load leading-out end in the thickness direction; the number of the first convex parts is a plurality of, the first convex parts are distributed at intervals along the width direction of the load leading-out end, the number of the grooves is a plurality of, and the grooves correspond to the first convex parts one to one.

3. The relay socket and load outlet connection structure according to claim 1, wherein: the first projection has a second surface facing away from the first surface, and the distance between the second surface and the first surface is gradually reduced along the insertion direction.

4. The relay socket and load outlet connection structure according to claim 1, wherein: at least one of two faces of the load leading-out end back to back in the width direction is provided with a barb, and the barb is clamped on the side face of the insertion hole where the load leading-out end is located.

5. The relay mount and load tap connection structure of any one of claims 1-4, wherein: the number of the load leading-out ends and the number of the inserting holes are a plurality, and the load leading-out ends correspond to the inserting holes one by one; the first surface of at least one load leading-out end is also provided with a second convex part, the second convex part and the first convex part are distributed along the length direction of the load leading-out end, and the second convex part is positioned on one side of the first convex part far away from the tilting part of the first convex part and is meshed with the corresponding groove.

6. The structure of claim 5, wherein: the second projection has a third surface facing away from the first surface, and the distance between the third surface and the first surface is gradually reduced along the insertion direction.

7. The relay mount and load tap connection structure of any one of claims 1-4, wherein: the base is in one side at cocked portion place is equipped with the edge the extension board that the cartridge direction of end was drawn forth to the load extends, the load is drawn forth a face that the end was carried on the back rather than the first surface and is passed lean on this extension board behind the cartridge hole, and this extension board is drawn forth the both sides on the width direction of end at the load and is equipped with spacing portion respectively.

8. The relay socket and load outlet connection structure of claim 7, wherein: the size of the limiting part in the thickness direction of the load leading-out end is smaller than the thickness of the load leading-out end; the number of the load leading-out ends and the number of the inserting holes are a plurality of, the load leading-out ends correspond to the inserting holes one to one, and the extending plates are provided with retaining walls between the adjacent load leading-out ends.

9. The relay socket and load outlet connection structure of claim 7, wherein: the extension plate is provided with a first stud hole, the load leading-out end is provided with a second stud hole, and the first stud hole corresponds to the second stud hole; an annular first dispensing groove is formed in the periphery of a first stud hole of one side, back to the load leading-out end, of the extension plate, and the first dispensing groove is communicated with the first stud hole in the inner side of the extension plate; and a second glue dispensing groove is formed in the insertion hole of the base.

10. A relay, characterized by: a connection structure including the relay socket as claimed in any one of claims 1 to 9 and a load outlet.

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