CN213905250U - Clapper type relay with consistent fall of pole face of iron core and knife edge of yoke - Google Patents

Abstract

The utility model discloses a clapper type relay with consistent fall between the pole face of an iron core and the knife edge of a yoke, which comprises a coil rack, the yoke and the iron core; the coil rack comprises flanges at two ends, a winding window between the flanges at the two ends and an iron core mounting hole penetrating through the flanges at the two ends; a flange of the coil frame is provided with a first attaching end face and a second attaching end face which face the outside of the flange, and the head of the iron core is positioned between the first attaching end face and the second attaching end face; one side of the L-shaped yoke is attached to the second attaching end face and presses the inner side face of the head of the iron core to the first attaching end face, the first attaching end face is provided with an adjusting convex portion, and the adjusting convex portion presses the outer side face of the head of the iron core to one side of the L-shaped yoke through deformation, so that the consistency of the fall of the pole face of the iron core and the knife edge of the yoke is guaranteed. The utility model discloses can guarantee iron core polar surface and yoke edge of a knife drop uniformity to guarantee the normal use of relay.

Description

Clapper type relay with consistent fall of pole face of iron core and knife edge of yoke

Technical Field

The utility model relates to a relay technical field especially relates to a clapper formula relay of iron core polar surface and yoke edge of a knife drop uniformity.

Background

A relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is commonly used in automatic control circuits, and which is actually an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. A kind of electric relay of the prior art, adopt and clap the type magnetic circuit structure, this kind of clap type electric relay includes the coil former, yoke, iron core and movable spring armature part, the coil former includes the flange of both ends, the wire winding window between the flanges of both ends and runs through the iron core mounting hole of the flange of both ends, the iron core is inserted in the iron core mounting hole of the coil former, one end of the iron core is used as the polar surface and used for cooperating with armature in the movable spring armature part, another end of the iron core is usually riveted with the yoke and fixed, the movable spring armature part is connected with yoke and made the head of the armature cooperate in the knife edge of the yoke, thus realize the clapping type movement of the armature to the pole surface of the iron core, because the head of the armature uses the knife edge of the yoke as the axis of rotation, to realize clapping to the pole surface of the iron core, therefore, require to be in the corresponding cooperation position between pole surface of the yoke and the iron core, so can guarantee the normal movement of the armature, namely, the consistency of the fall of the pole face of the iron core and the knife edge of the yoke iron is ensured. In the relay in the prior art, the other end of the iron core is fixed with the yoke by riveting, so that the inconsistency of fall between the pole face of the iron core and the knife edge of the yoke is easily generated, and the normal use of the relay is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a clapping formula relay of iron core polar surface and yoke edge of a knife drop uniformity, through institutional advancement, can guarantee iron core polar surface and yoke edge of a knife drop uniformity to guarantee the normal use of relay.

The utility model provides a technical scheme that its technical problem adopted is: a clapper type relay with consistent fall of an iron core pole face and a yoke knife edge comprises a coil rack, a yoke and an iron core; the coil rack comprises flanges at two ends, a winding window between the flanges at the two ends and an iron core mounting hole penetrating through the flanges at the two ends; the coil frame is characterized in that the yoke iron is bent into an L shape through a bending part, one L-shaped side of the yoke iron is matched outside one flange of the coil frame, the other L-shaped side of the yoke iron crosses flanges at two ends of the coil frame, and the end surface of the other L-shaped side of the yoke iron is a knife edge; one end of the iron core is provided with a head part with the size larger than that of the iron core mounting hole, and the end surface of the other end of the iron core is set as an iron core polar surface; the other end of the iron core passes through the iron core mounting hole from the outside of one flange of the coil frame to the outside of the other flange of the coil frame; one flange of the coil frame is provided with a first attaching end face and a second attaching end face which face the outside of the flange, and the first attaching end face is arranged at the hole edge of the iron core mounting hole; the head of the iron core is positioned between the first attaching end face and the second attaching end face; one side of the L-shaped yoke is attached to the second attaching end face and presses the inner side face of the head of the iron core to the first attaching end face, the first attaching end face is provided with an adjusting convex portion, and the adjusting convex portion presses the outer side face of the head of the iron core to one side of the L-shaped yoke through deformation, so that the consistency of the fall of the pole face of the iron core and the knife edge of the yoke is guaranteed.

The axis of the iron core mounting hole of the coil rack is horizontally arranged.

The cross section of the iron core mounting hole of the coil frame is rectangular; the iron core is T type structure, the head of iron core includes mid portion and to the extension piece that both sides extend, two extension pieces of iron core support respectively in first laminating terminal surface, the adjustment convex part is two, is in respectively on the first laminating terminal surface corresponding with two extension piece positions of iron core.

The second joint end faces are arranged at two positions, are respectively positioned outside two sides of the iron core mounting hole, and are far away from the iron core mounting hole relative to the first joint end faces; one side of the L-shaped yoke is provided with an opening extending upwards from the bottom end so as to separate one side of the L-shaped yoke into two leg structures, and the two leg structures of the yoke are respectively attached to the second attaching end surfaces.

The second attaching end face is further provided with a protruding bud, a leg-shaped structure of the yoke is provided with a through hole, when the leg-shaped structure of the yoke is attached to the second attaching end face, the through hole of the leg-shaped structure of the yoke is matched with the protruding bud of the second attaching end face of the coil rack and is fixed through hot melting treatment.

And the bottom of the leg-shaped structure of the yoke is provided with an interference fit part which is used for being fixedly inserted with the base of the relay.

Furthermore, a piece of magnetic steel is clamped between the head of the iron core and the other side of the L shape of the yoke, and the magnetic pole surfaces of the magnetic steel are respectively contacted with the head of the iron core and the other side of the L shape of the yoke.

The opening of the yoke iron extends to the bending part of the yoke iron; the other side of the L-shaped yoke extends towards the opening and is provided with a magnetic conduction part, and the magnetic conduction part is pressed on the magnetic steel.

The leg-shaped structure of the yoke is also provided with a notch facing to the outside at the position corresponding to the bending part of the yoke.

The size of the magnetic steel is the same as or nearly the same as that of the head of the iron core.

One flange of the coil frame comprises a baffle plate containing the iron core mounting hole and a convex body which is protruded from two sides of the baffle plate along the axial direction of the iron core mounting hole; the first attaching end face is arranged on the outer side face of the baffle, and the second attaching end face is arranged on the front end face of the convex body; the head of the iron core is matched between the two convex bodies.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model adopts the structure that one end of the iron core is provided with the head part with the size larger than that of the iron core mounting hole, and the end surface of the other end of the iron core is arranged as the pole surface of the iron core; the other end of the iron core passes through the iron core mounting hole from the outside of one flange of the coil frame to the outside of the other flange of the coil frame; one flange of the coil frame is provided with a first attaching end face and a second attaching end face which face the outside of the flange, and the first attaching end face is arranged at the hole edge of the iron core mounting hole; the head of the iron core is positioned between the first attaching end face and the second attaching end face; one side of the L shape of the yoke is attached to the second attaching end face and presses the inner side face of the head of the iron core to the first attaching end face, the first attaching end face is provided with an adjusting convex portion, and the adjusting convex portion presses the outer side face of the head of the iron core to one side of the L shape of the yoke through deformation. The utility model discloses a this kind of structure can guarantee iron core polar surface and yoke edge of a knife drop uniformity to can guarantee the normal use of relay.

2. The utility model discloses owing to adopted the head of iron core with go back centre gripping magnet steel between the another side of the L type of yoke, the magnetic pole face of magnet steel respectively with the head of iron core with the another side of the L type of yoke contacts. The utility model discloses a this kind of structure, the magnet steel is located between yoke and the iron core in the direction of height, has avoided prior art clapper type relay because the magnet steel is located between yoke and the iron core in the horizontal direction, in clapper process, causes the armature to transmit the power to the magnet steel through the iron core, leads to the cracked phenomenon of magnet steel to take place; the utility model discloses a magnetic pole face of magnet steel all contacts with the material face of yoke, iron core to avoided part blanking face unevenness to lead to the magnetic leakage phenomenon to appear.

3. The utility model adopts the opening extending upwards from the bottom end on one side of the L-shaped yoke to separate one side of the L-shaped yoke into the two-leg structure, and the utility model can reduce the magnetic short circuit among the yoke, the magnetic steel and the iron core by utilizing the opening between the two legs of the yoke, thereby improving the magnetic utilization rate; the utility model adopts the leg-shaped structure of the yoke, and the position corresponding to the bending part of the yoke is also provided with the notch facing outwards, thereby further reducing the magnetic short circuit and improving the magnetic utilization rate; the utility model discloses owing to adopted the another side of the L type of yoke to the opening extension is equipped with magnetic conduction portion, magnetic conduction portion presses on the magnet steel, the utility model discloses can further improve the magnetism utilization ratio.

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 of the clapping type relay with the consistent difference between the pole face of the iron core and the knife edge of the yoke.

Drawings

Fig. 1 is a schematic perspective view (without a housing) of an embodiment of the present invention;

fig. 2 is a structural sectional view of an embodiment of the present invention;

FIG. 3 is an exploded schematic view of a partial configuration of an embodiment of the present invention;

fig. 4 is a schematic perspective view of the iron core, yoke and moving spring armature components of an embodiment of the present invention;

fig. 5 is a front view of the core, yoke and bobbin of an embodiment of the invention in cooperation;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

fig. 7 is a top view of the core, yoke and bobbin of an embodiment of the present invention in cooperation;

fig. 8 is a sectional view taken along line B-B in fig. 7 (without terminals included);

fig. 9 is a schematic perspective view of a bobbin according to an embodiment of the present invention;

fig. 10 is a schematic perspective view of a yoke according to an embodiment of the present invention;

fig. 11 is a schematic perspective view of an iron core according to an embodiment of the present invention.

Detailed Description

Examples

Referring to fig. 1 to 11, the clapper relay of the present invention, which has a consistent difference between the pole face of the iron core and the knife edge of the yoke, includes a base 1, a coil rack 2, a yoke 3, an iron core 4 and a movable spring armature component 5; the coil frame 2 comprises flanges 21 and 22 at two ends, a winding window 23 between the flanges at two ends and an iron core mounting hole 24 penetrating through the flanges at two ends; the yoke 3 is bent into an L shape by a bending part 31, one side 32 of the L shape of the yoke is matched outside one flange 21 of the coil rack, the other side 33 of the L shape of the yoke crosses the flanges 21 and 22 at the two ends of the coil rack and the winding window 23 thereof, and the end surface of the other side 33 of the L shape of the yoke is set as a knife edge 331; a head 41 with a size larger than that of the iron core mounting hole is arranged at one end of the iron core 4, and an end face 42 at the other end of the iron core is set as an iron core pole face; the other end of the iron core 4 passes through the iron core mounting hole 24 from the outside of one flange 21 of the coil frame to the outside of the other flange 22 of the coil frame; one flange 21 of the coil rack is provided with a first attaching end surface 211 and a second attaching end surface 212 which face the outside of the flange, and the first attaching end surface 211 is arranged at the hole edge of the iron core mounting hole 24; the head 41 of the iron core is positioned between the first attaching end surface 211 and the second attaching end surface 212; the L-shaped side 32 of the yoke is attached to the second attaching end surface 212 and presses the inner side surface of the head 41 of the iron core to the first attaching end surface 211, the first attaching end surface 211 is provided with an adjusting protrusion 25, and the adjusting protrusion 25 presses the outer side surface of the head 41 of the iron core to the L-shaped side 32 of the yoke through deformation, so that the consistency of the fall of the pole surface 42 of the iron core and the yoke knife edge 331 is ensured. The armature 51 of the moving spring armature member 5 is fitted at the yoke edge 331.

In this embodiment, the axis of the core mounting hole 24 of the bobbin 2 is horizontally disposed.

In this embodiment, the cross section of the iron core mounting hole 24 of the coil bobbin 2 is rectangular; the iron core 4 is of a T-shaped structure, the head 41 of the iron core includes a middle portion 411 and two extending blocks 412 extending to two sides, the two extending blocks 412 of the iron core respectively support against the first attaching end face 211, and the two adjusting protrusions 25 are respectively located on the first attaching end face 211 corresponding to the two extending blocks 412 of the iron core.

In this embodiment, the second attaching end surface 212 is located at two positions, respectively outside two sides of the iron core mounting hole 24, and is further away from the iron core mounting hole 24 relative to the first attaching end surface 211; one side 32 of the L-shape of the yoke is provided with an opening 321 extending upward from the bottom end to separate the one side 32 of the L-shape of the yoke into two leg structures 322, and the two leg structures 322 of the yoke are respectively attached to the second attaching end surfaces 212.

In this embodiment, the second attaching end surface 212 is further provided with a protruding bud 26, the leg structure 322 of the yoke is provided with a through hole 323, and when the leg structure 322 of the yoke is attached to the second attaching end surface 212, the through hole 323 of the leg structure of the yoke 3 is matched with the protruding bud 26 of the second attaching end surface of the bobbin 2 and fixed by hot melting.

In this embodiment, the bottom of the leg structure 322 of the yoke is provided with an interference fit portion 324 for being inserted and fixed with the base 1 of the relay.

Further, a piece of magnetic steel 6 is further clamped between the head 41 of the iron core and the other side 33 of the L shape of the yoke, and the magnetic pole surfaces of the magnetic steel 6 are respectively contacted with the head 41 of the iron core and the other side 33 of the L shape of the yoke.

Further, the opening 321 of the yoke extends to the bent portion 31 of the yoke; the other side 33 of the L-shape of the yoke is provided with a magnetic conducting part 332 extending towards the opening, and the magnetic conducting part 332 is pressed on the magnetic steel 6.

In this embodiment, the leg structure 322 of the yoke is further provided with a notch 34 facing outward at a position corresponding to the bent portion 31 of the yoke.

In this embodiment, the size of the magnetic steel 6 is the same as or nearly the same as the size of the head 41 of the iron core.

In this embodiment, one of the flanges 21 of the bobbin includes a baffle 213 including the core mounting hole and a protrusion 214 protruding from both sides of the baffle in the axial direction of the core mounting hole; the first attaching end surface 211 is disposed on the outer side surface of the baffle 213, and the second attaching end surface 212 is disposed on the front end surface of the convex body 214 (i.e., the axis of the core mounting hole 24 of the coil frame is used as the front and rear sides); the head 41 of the core fits between the two bosses 214.

The utility model discloses a clapper type relay of iron core polar surface and yoke edge of a knife drop uniformity, adopted one end of iron core 4 to be equipped with the size and be greater than the head 41 of iron core mounting hole, the terminal surface 42 of the other end of iron core is established to the iron core polar surface; the other end of the iron core 4 passes through the iron core mounting hole 24 from the outside of one flange 21 of the coil frame to the outside of the other flange 22 of the coil frame; one flange 21 of the coil frame is provided with a first attaching end surface 211 and a second attaching end surface 212 facing the outside of the flange 21, and the first attaching end surface 211 is arranged at the hole edge of the iron core mounting hole 24; the head 41 of the iron core is positioned between the first attaching end surface 211 and the second attaching end surface 212; the L-shaped side 32 of the yoke is attached to the second attachment end surface 212 and presses the inner side surface of the head 41 of the core against the first attachment end surface 211, and the first attachment end surface 211 is provided with an adjustment protrusion 25, and the adjustment protrusion 25 presses the outer side surface of the head 41 of the core against the L-shaped side 32 of the yoke by deformation. The utility model discloses a this kind of structure can guarantee iron core pole face 42 and yoke edge of a knife 331 drop uniformity to can guarantee the normal use of relay.

The utility model discloses a clapping type relay of iron core polar surface and yoke edge of a knife drop uniformity has adopted the head 41 of iron core with it is a magnet steel 6 still to centre gripping between the another side 33 of the L type of yoke, the magnetic pole face of magnet steel 6 respectively with the head 41 of iron core with the another side 33 of the L type of yoke contacts. In the structure of the utility model, the magnetic steel 6 is positioned between the yoke 3 and the iron core 4 in the height direction, thereby avoiding the occurrence of the phenomenon that the magnetic steel is broken because the magnetic steel is positioned between the yoke and the iron core in the horizontal direction in the clapping process of the clapping type relay in the prior art, which causes the armature to transmit force to the magnetic steel through the iron core; the utility model discloses a magnetic pole face of magnet steel all contacts with the material face of yoke, iron core to avoided part blanking face unevenness to lead to the magnetic leakage phenomenon to appear.

The utility model discloses a clapper type relay of iron core polar surface and yoke edge of a knife drop uniformity, one side 32 that has adopted the L type of yoke is equipped with the opening 321 that extends upwards by the bottom in order to separate one side of the L type of yoke into two leg shape structures 322, the utility model discloses utilize the opening 321 between the two legs of yoke can reduce the magnetic short circuit between yoke, magnet steel, the iron core, improve the magnetism utilization ratio; the utility model adopts the leg-shaped structure 322 of the yoke, and the notch 34 facing to the outside is arranged at the position corresponding to the bending part of the yoke, thereby further reducing the magnetic short circuit and improving the magnetic utilization rate; the utility model discloses because the another side 33 of the L type that has adopted the yoke to the opening extension is equipped with magnetic conduction portion 332, magnetic conduction portion 332 presses on magnet steel 6, the utility model discloses can further improve the magnetism utilization ratio.

The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solutions disclosed above can be used by those skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. A clapper type relay with consistent fall of an iron core pole face and a yoke knife edge comprises a coil rack, a yoke and an iron core; the coil rack comprises flanges at two ends, a winding window between the flanges at the two ends and an iron core mounting hole penetrating through the flanges at the two ends; the coil frame is characterized in that the yoke iron is bent into an L shape through a bending part, one L-shaped side of the yoke iron is matched outside one flange of the coil frame, the other L-shaped side of the yoke iron crosses flanges at two ends of the coil frame, and the end surface of the other L-shaped side of the yoke iron is a knife edge; one end of the iron core is provided with a head part with the size larger than that of the iron core mounting hole, and the end surface of the other end of the iron core is set as an iron core polar surface; the method is characterized in that: the other end of the iron core passes through the iron core mounting hole from the outside of one flange of the coil frame to the outside of the other flange of the coil frame; one flange of the coil frame is provided with a first attaching end face and a second attaching end face which face the outside of the flange, and the first attaching end face is arranged at the hole edge of the iron core mounting hole; the head of the iron core is positioned between the first attaching end face and the second attaching end face; one side of the L-shaped yoke is attached to the second attaching end face and presses the inner side face of the head of the iron core to the first attaching end face, the first attaching end face is provided with an adjusting convex portion, and the adjusting convex portion presses the outer side face of the head of the iron core to one side of the L-shaped yoke through deformation, so that the consistency of the fall of the pole face of the iron core and the knife edge of the yoke is guaranteed.

2. The clapper relay of claim 1, wherein the iron core pole face and yoke knife edge fall are consistent, and the clapper relay comprises: the axis of the iron core mounting hole of the coil rack is horizontally arranged.

3. The clapper relay of claim 2, wherein the iron core pole face and yoke knife edge fall are consistent, and the clapper relay comprises: the cross section of the iron core mounting hole of the coil frame is rectangular; the iron core is T type structure, the head of iron core includes mid portion and to the extension piece that both sides extend, two extension pieces of iron core support respectively in first laminating terminal surface, the adjustment convex part is two, is in respectively on the first laminating terminal surface corresponding with two extension piece positions of iron core.

4. The clapper relay of claim 3, wherein the iron core pole face and yoke knife edge fall are consistent, and the clapper relay is characterized in that: the second joint end faces are arranged at two positions, are respectively positioned outside two sides of the iron core mounting hole, and are far away from the iron core mounting hole relative to the first joint end faces; one side of the L-shaped yoke is provided with an opening extending upwards from the bottom end so as to separate one side of the L-shaped yoke into two leg structures, and the two leg structures of the yoke are respectively attached to the second attaching end surfaces.

5. The clapper relay of claim 4, wherein the iron core pole face and yoke knife edge fall are consistent, and the clapper relay is characterized in that: the second attaching end face is further provided with a protruding bud, a leg-shaped structure of the yoke is provided with a through hole, when the leg-shaped structure of the yoke is attached to the second attaching end face, the through hole of the leg-shaped structure of the yoke is matched with the protruding bud of the second attaching end face of the coil rack and is fixed through hot melting treatment.

6. The clapper relay of claim 5, wherein the iron core pole face and yoke knife edge fall are consistent, and the clapper relay is characterized in that: and the bottom of the leg-shaped structure of the yoke is provided with an interference fit part which is used for being fixedly inserted with the base of the relay.

7. The clapper relay of claim 4, wherein the iron core pole face and yoke knife edge fall are consistent, and the clapper relay is characterized in that: furthermore, a piece of magnetic steel is clamped between the head of the iron core and the other side of the L shape of the yoke, and the magnetic pole surfaces of the magnetic steel are respectively contacted with the head of the iron core and the other side of the L shape of the yoke.

8. The clapper relay of claim 7, wherein the iron core pole face and yoke knife edge fall are consistent, and the clapper relay comprises: the opening of the yoke iron extends to the bending part of the yoke iron; the other L-shaped edge of the yoke extends towards the opening to form a magnetic conduction part, and the magnetic conduction part is pressed on the magnetic steel; the leg-shaped structure of the yoke is also provided with a notch facing to the outside at the position corresponding to the bending part of the yoke.

9. The clapper relay of claim 7, wherein the iron core pole face and yoke knife edge fall are consistent, and the clapper relay comprises: the size of the magnetic steel is the same as or nearly the same as that of the head of the iron core.

10. The clapper relay of claim 3, wherein the iron core pole face and yoke knife edge fall are consistent, and the clapper relay is characterized in that: one flange of the coil frame comprises a baffle plate containing the iron core mounting hole and a convex body which is protruded from two sides of the baffle plate along the axial direction of the iron core mounting hole; the first attaching end face is arranged on the outer side face of the baffle, and the second attaching end face is arranged on the front end face of the convex body; the head of the iron core is matched between the two convex bodies.

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