CN210897137U

CN210897137U - Electromagnetic relay

Info

Publication number: CN210897137U
Application number: CN201921986713.4U
Authority: CN
Inventors: 曾德高
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-06-30
Anticipated expiration: 2029-11-15

Abstract

The utility model relates to an electromagnetic relay, be in including casing and setting coil pack in the casing, suction disc, first iron, reed, static piece and be used for the encapsulation the bottom plate of casing, coil pack includes coil skeleton and follows draw forth and pass on the coil skeleton the stitch that the bottom plate extends, suction disc and first iron are installed respectively coil skeleton's axial both ends, on the coil skeleton, the one end that is close to the suction disc forms the mount, the static piece fixed mounting be in the mount, the reed has movable contact and the electrically conductive connection piece of fixed mounting on the suction disc, on the static piece, remote in one side of suction disc has the edge the static connection portion of the lateral wall of casing is extended, and at least part protrusion in the static piece, on the first iron, remote have in one side of connecting plate follow the mounting panel is extended, And at least a part of the cord connecting portion protrudes from the side wall of the housing. The effect of the relay is embodied to be more flexible in application of installation space.

Description

Electromagnetic relay

Technical Field

The utility model particularly relates to an electromagnetic relay.

Background

The electromagnetic relay is used as a signal switch element and is widely applied to various circuit boards, and the main characteristic is that the electromagnetic relay is embodied as an automatic switch element which controls larger current or voltage by using smaller current and voltage signals, so that the electromagnetic relay is widely used as a main control element in the fields of intelligent electrical or intelligent home control and automatic machinery, however, with the progress of times, the design of products such as a time switch, an over-voltage and under-voltage protector, a water pump controller and the like is more and more refined, so that various products form the trend of gradually moving towards small volume development, while the electromagnetic relay in the prior art is particularly embodied as that the electromagnetic relay extends towards the direction corresponding to a bottom plate, namely towards the top end plate of a relay shell because the distribution structure of a static connection part and a flexible wire part is unreasonable, so make the relay among the prior art set up on the circuit board after, its static wiring portion and patchcord connecting portion to the extension of casing top board direction have occupied the space of certain direction of height, especially under the condition that the product casing is miniaturized more and more, how the volume of each spare part on the reduction circuit board of maximize has just become urgent of affairs, and the wiring structure of relay on the circuit board also is the important factor that influences the small volume of product, on this basis, the utility model discloses the distribution to the static wiring portion and patchcord connecting portion of electromagnetic relay among the prior art has carried out further design improvement.

Disclosure of Invention

An object of the utility model is to provide an electromagnetic relay of novel in design, simple structure, this relay is applied to in the product, can further reduce the installation space requirement to the product casing.

To achieve the above object, the present invention provides an electromagnetic relay, comprising a housing, a coil assembly, a suction plate, a yoke, a reed, a stator, and a bottom plate for enclosing the housing, wherein the coil assembly comprises a coil frame for winding a wire, an iron core axially penetrating the coil frame, and a leg extending from the coil frame and fixed to a circuit board by soldering, the suction plate and the yoke are respectively mounted at two axial ends of the coil frame, the yoke has a mounting plate attached to one end of the coil frame and a connecting plate perpendicular to the mounting plate and extending to the other end of the coil frame, one end of the coil frame, which is close to the suction plate, is formed with a fixing frame at a distance from one side of the connecting plate, the fixed sheet is provided with a contact and is fixedly arranged in the fixed frame, the reed is provided with a movable contact piece fixedly arranged on the suction plate and a conductive connecting piece which extends from the tail end of the movable contact piece and is fixedly arranged on the connecting plate, wherein the movable contact piece is fixedly arranged on the suction plate in a riveting way, the conductive connecting piece is also fixedly arranged on the connecting plate in a riveting way, one end of the movable contact piece, which is far away from the conductive connecting piece, is provided with a contact part which extends along the movable contact piece and extends into the fixed frame, the contact part is provided with a contact which corresponds to the contact on the fixed sheet in the longitudinal direction, one side of the fixed sheet, which is far away from the suction plate, is provided with a fixed connection part which extends along the fixed sheet and at least partially protrudes out of the side wall of the shell, one side of the iron, which is far away from the connecting plate, is provided with a fixed connection part which extends along, And at least part of the flexible wire connecting part is protruded out of the side wall of the shell, and the static wire connecting part and the flexible wire connecting part are used for external electric conductors (including flexible connecting wires or hard connecting plates), so that the electronic components are switched on and off.

As a further setting of the utility model, have respectively on the connecting plate of still and indisputable respectively and pass first location portion and the second location portion that the bottom plate extends, first location portion and second location portion carry out effectual location installation before the mode such as soldering is fixed in the circuit board at the stitch, can guarantee from this that the staff pulls the wiring to the flexible coupling on quiet line portion and the patchcord connecting portion, are unlikely to the skew of relay and damage, and simultaneously, the sampling circuit hookup location on the circuit board also can be regarded as to location portion.

As the utility model discloses a further setting again, the mount with coil skeleton is the integral type structure, and the bottom of mount forms and is used for inserting and establishes the forward slot of still, on the forward slot, be close to one side of suction disc forms and is used for the overlap joint the step wall of reed, the setting of step wall have guaranteed to have certain stroke interval between the contact on the reed and the contact on the still, have improved the security, have also improved the ability of resistant impulse current.

Through the improvement to the above-mentioned technical scheme of prior art, the utility model discloses electromagnetic relay's beneficial effect embodies as follows: because among the prior art, static wiring portion and patchcord connecting portion all pass the top board of casing and this top board of perpendicular to extends, so form the bottom plate (be used for threading the line foot and fix on the circuit board) and static wiring portion and soft connecting portion between the vertical distance is great, especially when it is applied to the product inner chamber, the casing inner chamber of product must guarantee to have enough big vertical distance to be used for holding this relay, this contradicts with the thought that the customer itself expects with product toward exquisiteness and little volume development, correspondingly, under most of the circumstances, when some products that use the relay need carry out function upgrade and diversified demand, the installation space of saving alright further satisfy the design requirement, embody the utility model discloses an effect that the flexibility of installation can be promoted.

Drawings

Fig. 1 is a perspective view of a prior art electromagnetic relay.

Fig. 2 is a schematic perspective view of the electromagnetic relay according to the present invention.

Fig. 3 is a perspective view of fig. 2 with the housing removed.

Fig. 4 is a perspective view of fig. 3 with the bobbin and stitch removed.

Fig. 5 is a schematic perspective view of the middle bobbin of the present invention.

Fig. 6 is a perspective view of the middle spring plate of the present invention.

Fig. 7 is a perspective view of a middle iron of the present invention.

Fig. 8 is another perspective view of fig. 3 with the bobbin removed.

Detailed Description

Fig. 1-8 show that this embodiment adopts an electromagnetic relay, including a housing 1 and a coil assembly (not marked in the drawings), a suction plate 3, a yoke 4, a reed 5, a stator 6 and a bottom plate 7 for packaging the housing, which are disposed in the housing 1, and fig. 3 shows in combination with fig. 4 and 5 that the coil assembly includes a coil bobbin 20 for winding a wire and an iron core 200 axially penetrating the coil bobbin 20 and a leg 21 led out from the coil bobbin 20 and extending through the bottom plate 7, and it should be known to those skilled in the art that the leg 21 is inserted on a circuit board and fixed on the circuit board by soldering or the like, and is shown in fig. 3 that the suction plate 3 and the yoke 4 are respectively disposed at two axial ends of the coil bobbin 20, and further shows in combination with fig. 4 and 7 that the yoke 4 has a mounting plate 40 attached to one end of the coil bobbin 20 and a mounting plate 40 perpendicular to the mounting plate 40 and perpendicular to the mounting plate 40 A connecting plate 41 extending to the other end of the bobbin 20 (i.e., the end where the suction plate 3 is located), a fixed frame 202 formed on the bobbin 20 near one end of the suction plate 3 and distant from one side of the connecting plate 41 in the transverse direction, and a fixed frame 202 formed on the fixed plate 6 and fixed in the fixed frame 202, as shown in fig. 6, the spring 5 has a movable contact piece 50 fixed on the suction plate 3 and a conductive connecting piece 51 extending from the tail end of the movable contact piece 50 and fixed on the connecting plate 41, in this embodiment, the movable contact piece 50 is fixed on the suction plate 3 by riveting, and the conductive connecting piece 51 is fixed on the connecting plate 41 by riveting, the end of the movable contact piece 50 distant from the conductive connecting piece 51 has a contact part 500 extending along the movable contact piece 50 and extending into the fixed frame 202, the contacts 60 on the contact part 500 are arranged corresponding to the contacts 60 on the stator 6 in the longitudinal direction, as further shown in fig. 3, the stator 6 is provided with a static wire part 61 which is extended along the stator 6 and at least partially protrudes out of the side wall 10 of the housing 1 on the side far away from the suction plate 3 in the transverse direction, the yoke 4 is provided with a flexible wire connecting part 42 which is extended along the mounting plate 40 and at least partially protrudes out of the side wall 10 of the housing 1 on the side far away from the connecting plate 41, and the static wire part 61 and the connecting part 42 are connected by means of flexible wires or the like of external conductors (including flexible wires or hard connecting plates), so that the electronic components can be switched on and off by spot welding.

As can be seen from comparison between the electromagnetic relay in the prior art shown in fig. 1 and the electromagnetic relay in the present embodiment shown in fig. 2 to 4, the main improvement direction of the electromagnetic relay in the present embodiment is based on the improvement that the structure in which the fixed wire portion 61 and the cord connecting portion 42 protrude from the top end plate 11 of the housing 1 in the prior art is changed to protrude from the side wall 10 of the housing 1, and thus the fixed wire portion 61 and the cord connecting portion 42 are effectively prevented from being excessively small in the wiring and mounting in the product, and the effect of saving the mounting space in the vertical direction of the circuit board is achieved.

In addition, as shown in fig. 8, the connecting plates 41 of the stator 5 and the yoke 4 are respectively provided with a first positioning portion 62 and a second positioning portion 410 which extend through the bottom plate 7, in this embodiment, as can be seen from fig. 3 and 5, the fixing frame 202 and the coil bobbin 20 are formed in an integral structure, the bottom of the fixing frame 202 forms a forward slot 2020 for inserting the stator 6, a step wall 2021 for overlapping the spring 5 is formed on one side of the forward slot 2020 and close to the suction plate 3, and the step wall 2021 is provided, so that a certain stroke distance is ensured between the contact 60 on the spring 5 and the contact 60 on the stator 6, the safety is improved, and the capability of resisting impact current is also improved.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and the above-described embodiments and the description only illustrate the principle of the present invention, and that there are various changes and modifications of the present invention, which are introduced by the spirit of the technical solution of the present invention and fall within the scope of the claims of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an electromagnetic relay, includes the casing and sets up coil pack, suction disc, early iron, reed, static piece in the casing and be used for the encapsulation the bottom plate of casing, coil pack wears to establish including coil skeleton and the axial that is used for the coiling wire iron core on the coil skeleton and follow draw forth and pass on the coil skeleton the stitch that the bottom plate extends, suction disc and early iron are installed respectively the axial both ends of coil skeleton, and early iron has the laminating and sets up the mounting panel and the perpendicular to in coil skeleton one end the mounting panel extends to the connecting plate of the coil skeleton other end, on the coil skeleton, be close to the one end of suction disc and remote in one side of connecting plate form the mount, have contact on the static piece and fixed mounting in the mount, the reed has movable contact and follow of fixed mounting on the suction disc the tail end of movable contact extends the movable contact piece, And the conductive connecting sheet is fixedly installed on the connecting plate, one end of the movable contact piece, which is far away from the conductive connecting sheet, is provided with a contact part which extends along the movable contact piece and extends into the fixed frame, and the contact part is provided with a contact which is correspondingly arranged with the contact on the fixed piece in the longitudinal direction, and the conductive connecting sheet is characterized in that: the fixed sheet is provided with a fixed connection wire part which extends along the fixed sheet and at least partially protrudes out of the side wall of the shell on one side far away from the suction plate, and the iron is provided with a flexible wire connecting part which extends along the mounting plate and at least partially protrudes out of the side wall of the shell on one side far away from the connecting plate.

2. An electromagnetic relay according to claim 1, characterized in that: the connecting plates of the stator and the yoke are respectively provided with a positioning part which passes through the bottom plate to extend.

3. An electromagnetic relay according to claim 1 or 2, characterized in that: the fixing frame and the coil framework are of an integrated structure, a forward slot for inserting the still is formed in the bottom of the fixing frame, and a step wall for overlapping the reeds is formed on one side, close to the suction plate, of the forward slot.