A push rod type relay

Abstract

The application relates to the technical field of relays, in particular to a push rod type relay which comprises a shell, a base, a magnetic circuit assembly and a contact piece assembly, the shell is provided with a containing cavity; the base is arranged in the containing cavity, one side of the base is provided with a recess and an embedding groove; the magnetic circuit assembly comprises a coil framework, a coil group and two coil pins, the coil framework is provided with a winding part and an embedding part, the coil group is wound on the winding part, the coil framework is inserted from one side of the base and the winding part is arranged in the recess, the embedding part is embedded with the embedding groove, one end of the two coil pins is connected with the coil group and the other end is bent after extending out of a cavity opening of the containing cavity; the contact piece assembly comprises a moving contact pin and a static contact pin, one end of the moving contact pin and the static contact pin is bent along the width direction of the shell after extending out of the cavity opening, the moving contact pin, the static contact pin and the coil pin are bent, the recess is arranged to accommodate the coil framework, the advantages of pin bending, smaller overall height size and side insertion of the coil framework are realized.

Description

Technical Field

[0001] This application relates to the field of relay technology, and more specifically to a push rod relay. Background Technology

[0002] A relay is an electrical switching device that controls the on / off state of a circuit through electromagnetic effects. Relays include push-rod relays, which transmit power between the armature and the moving spring via a push rod.

[0003] Patent document (CN2922109Y) discloses a relay including a yoke, an armature, a stationary contact, a moving contact, and push rods. The tail of each push rod is connected to the armature, and its head is linked to its corresponding moving contact. (See the accompanying drawings in the specification.) Figure 1 As can be seen, the pins of the stationary contact piece, the moving contact piece, and the coil pins all extend straight out of the housing; however, this results in a relatively large overall height of the relay.

[0004] Therefore, there is a need for a push rod relay with bent pins, smaller overall height, and coil insertion on the side of the coil frame. Summary of the Invention

[0005] The main objective of this application is to provide a push-rod type relay, wherein the push-rod type relay includes a housing, a base, a magnetic circuit assembly, and a contact assembly. The housing has a receiving cavity; the base is disposed within the receiving cavity, and one side of the base has a notch and a groove; the magnetic circuit assembly includes a coil frame, a coil group, and two coil leads. The coil frame has a winding portion and a fitting portion. The coil group is wound around the winding portion. The coil frame is inserted from one side of the base, with the winding portion placed within the notch, and the fitting portion engaging with the groove. The two coil pins are connected at one end to the coil assembly, and the other ends of the two coil pins are bent a predetermined distance along the width direction of the housing after extending out of the cavity. The contact assembly includes a moving contact pin and a stationary contact pin. One end of the moving contact pin and the stationary contact pin are bent a predetermined distance along the width direction of the housing after extending out of the cavity. By bending the moving contact pin, the stationary contact pin, and the coil pins, a notch is provided to accommodate the coil frame, achieving the advantages of pin bending, smaller overall height, and side insertion of the coil frame.

[0006] Another objective of this application is to provide a push-rod type relay, wherein the magnetic circuit assembly further includes a yoke and an armature, the push-rod type relay further includes a push rod, the contact assembly further includes a moving spring and a stationary spring, one end of the yoke is located at one end of the coil frame having the winding portion, the armature is oscillatingly mounted at the other end of the yoke, one end of the push rod is connected to the other end of the armature away from the yoke, the moving spring and the stationary spring are both mounted on the base and spaced at a predetermined distance, and the end of the push rod away from the armature is connected to the moving spring, the moving spring is fixedly connected to the moving contact pin, and the stationary spring is fixedly connected to the stationary contact pin, so that the moving spring and the stationary spring contact when the coil assembly is energized.

[0007] To achieve at least one of the above-mentioned objectives, this application provides a push-rod relay, wherein the push-rod relay comprises:

[0008] The housing has a receiving cavity;

[0009] A base, wherein the base is disposed within the receiving cavity, and one side of the base has a notch and a groove;

[0010] A magnetic circuit assembly includes a coil frame, a coil group, and two coil pins. The coil frame has a winding portion and a fitting portion. The coil group is wound on the winding portion. The coil frame is inserted from one side of the base and the winding portion is placed in the notch. The fitting portion is engaged with the groove. One end of the two coil pins is connected to the coil group. The other end of the two coil pins is bent a predetermined distance along the width direction of the outer shell after extending out of the cavity opening.

[0011] A contact assembly, comprising a moving contact pin and a stationary contact pin, wherein one end of the moving contact pin and the stationary contact pin is bent a predetermined distance along the width direction of the housing after extending out of the cavity opening.

[0012] In one or more embodiments of this application, the magnetic circuit assembly further includes a yoke and an armature; the push rod relay further includes a push rod; the contact assembly further includes a moving spring and a stationary spring; one end of the yoke is located at one end of the coil frame having the winding portion; the armature is oscillatingly mounted at the other end of the yoke; one end of the push rod is connected to the other end of the armature away from the yoke; the moving spring and the stationary spring are both mounted on the base and spaced apart by a predetermined distance; and the end of the push rod away from the armature is connected to the moving spring; the moving spring is fixedly connected to the moving contact pin; and the stationary spring is fixedly connected to the stationary contact pin.

[0013] In one or more embodiments of this application, the notch has an extension piece on the side near the coil pin, the end of the yoke near the armature passes between the extension piece and the sidewall of the notch, and the coil frame also includes a notch located between the winding portion and the fitting portion.

[0014] In one or more embodiments of this application, the center of the winding portion has a first insertion hole, the end of the yoke away from the armature has a second insertion hole, and the magnetic circuit assembly further includes an iron core, the iron core passing through the first insertion hole and the second insertion hole.

[0015] In one or more embodiments of this application, the magnetic circuit assembly further includes a compression spring, the two ends of which are respectively connected to the end of the armature away from the push rod and the end of the yoke close to the armature.

[0016] In one or more embodiments of this application, the armature has a groove at one end near the yoke, the compression spring has two hooks at one end, one end of the compression spring is riveted to the armature, and the hooks on the other end of the compression spring extend into the groove and abut against the groove wall.

[0017] In one or more embodiments of this application, the end of the armature near the push rod has a groove, and the end of the push rod has a hook that extends into the groove.

[0018] In one or more embodiments of this application, the push rod has a groove, and the base also has a protrusion that extends into the groove.

[0019] In one or more embodiments of this application, the other side of the base has two mounting slots, one of which contains the moving spring and the other contains the stationary spring.

[0020] In this embodiment, the push-rod relay includes a housing, a base, a magnetic circuit assembly, and a contact assembly. The housing has a receiving cavity; the base is disposed within the receiving cavity, and one side of the base has a notch and a groove; the magnetic circuit assembly includes a coil frame, a coil group, and two coil pins. The coil frame has a winding portion and a fitting portion. The coil group is wound on the winding portion. The coil frame is inserted from one side of the base, and the winding portion is placed in the notch. The fitting portion is engaged with the groove. One end of the two coil pins is connected to the coil group, and the other end of the two coil pins is bent a predetermined distance along the width direction of the housing after extending out of the cavity. The contact assembly includes a moving contact pin and a stationary contact pin. One end of the moving contact pin and the stationary contact pin is bent a predetermined distance along the width direction of the housing after extending out of the cavity. By bending the moving contact pin, the stationary contact pin, and the coil pins, and providing a notch to accommodate the coil frame, the advantages of pin bending, smaller overall height, and side insertion of the coil frame are achieved. Attached Figure Description

[0021] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 The figure shows a schematic diagram of the structure of a push rod relay according to this application;

[0023] Figure 2 The diagram illustrates the structure of the base with a magnetic circuit assembly at a certain angle.

[0024] Figure 3 The diagram shows a structural schematic of the base from a certain perspective;

[0025] Figure 4 The diagram illustrates the structure of the coil frame;

[0026] Figure 5 The diagram illustrates the structure of the magnetic circuit assembly at a certain angle.

[0027] Figure 6 The figure shows a schematic diagram of a push rod relay without a housing.

[0028] Figure 7 The diagram shows a schematic of the magnetic circuit assembly from another angle. Detailed Implementation

[0029] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0030] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0031] While ordinal numbers such as "first," "second," etc., will be used to describe various components, there is no limitation on which components are used herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0033] Indicative push-rod relay, reference Figures 1 to 7 A preferred embodiment of the present invention provides a push-rod relay, comprising a housing 10, a base 20, a magnetic circuit assembly 30, and a contact assembly 40.

[0034] Specifically, such as Figure 1 As shown, the outer casing 10 has a receiving cavity 101; the base 20 is disposed in the receiving cavity 101; the magnetic circuit assembly 30 includes two coil leads 301, one end of the two coil leads 301 is bent a predetermined distance along the width direction of the outer casing 10 after extending out of the cavity opening of the receiving cavity 101; the contact assembly 40 includes a moving contact lead 401 and a stationary contact lead 402, one end of the moving contact lead 401 and the stationary contact lead 402 is bent a predetermined distance along the width direction of the outer casing 10 after extending out of the cavity opening of the receiving cavity 101. In this application, the bending angle is 90°.

[0035] It should be noted that by bending the stationary contact pin 402, the moving contact pin 401, and the coil pin 301 90° after extending out of the cavity of the receiving cavity 101, compared with the prior art where the pins extend vertically, this application uses the width dimension of the push rod relay itself to compensate for the height dimension of the push rod relay, which has the advantages of bending the pins and having a smaller overall height dimension.

[0036] Furthermore, such as Figure 3 As shown, one side of the base 20 has a notch 201 and a groove 202; as Figure 2 and Figure 4 As shown, the magnetic circuit assembly 30 further includes a coil frame 302 and a coil group 303. The other ends of the two coil pins 301 are connected to the coil group 303. The coil frame 302 has a winding portion 3021 and a fitting portion 3022. The coil group 303 is wound on the winding portion 3021. The coil frame 302 is inserted from one side of the base 20, and the winding portion 3021 is placed in the recess 201. The fitting portion 3022 is fitted into the groove 202.

[0037] It should be noted that after the coil assembly 303 is wound onto the winding portion 3021, since one side of the notch 201 is open, the assembler can align the fitting portion 3022 of the coil frame 302 with the groove 202 and insert the coil frame 302 from one side of the notch 201. Compared with the prior art, this method has the advantage of side insertion of the coil frame and convenient installation.

[0038] Furthermore, such as Figure 5 and Figure 6 As shown, the magnetic circuit assembly 30 further includes a yoke 304 and an armature 305, the push rod relay further includes a push rod 50, and the contact assembly 40 further includes a moving spring 403 and a stationary spring 404. One end of the yoke 304 is located at one end of the coil frame 302 having the winding portion 3021. The armature 305 is oscillatingly mounted at the other end of the yoke 304. One end of the push rod 50 is connected to the other end of the armature 305 away from the yoke 304. The moving spring 403 and the stationary spring 404 are both mounted on the base 20 and spaced apart by a predetermined distance. The end of the push rod 50 away from the armature 305 is connected to the moving spring 403. The moving spring 403 is fixedly connected to the moving contact pin 401, and the stationary spring 404 is fixedly connected to the stationary contact pin 402. The fixed connection method includes, but is not limited to, welding or integral stamping.

[0039] It should be noted that a moving spring point is fixedly provided on the moving spring 403, and a stationary spring point is fixedly provided on the stationary spring 404. The moving spring 403 is normally separated from the stationary spring 404, and the armature 305 is normally spaced at a predetermined distance from the coil frame 302. When the coil assembly 303 is energized, the armature 305 swings at a predetermined angle towards the coil frame 302 under the action of magnetic force, and drives the push rod 50 to slide a predetermined distance in the corresponding direction. Since the push rod 50 is connected to the moving spring 403, the moving spring 403 is pushed and abuts against the stationary spring 404 at a certain moment, realizing the conduction of the moving contact pin 401 and the stationary contact pin 402.

[0040] Furthermore, such as Figure 7 As shown, the magnetic circuit assembly 30 also includes a compression spring 306, the two ends of which are connected to the end of the armature 305 away from the push rod 50 and the end of the yoke 304 near the armature 305, respectively.

[0041] It should be noted that the compression spring 306 is elastic. When the armature 305 moves toward the coil frame 302, the compression spring 306 is deformed by force. When the coil assembly 303 is de-energized, the armature 305 swings away from the coil frame 302 under the elastic force of the compression spring 306, and the moving spring point on the moving spring plate 403 separates from the stationary spring point on the stationary spring plate 404.

[0042] Furthermore, such as Figure 2 and Figure 3 As shown, the notch 201 has an extension piece 2012 on the side near the coil pin 301. The end of the yoke 304 near the armature 305 passes between the extension piece 2012 and the side wall of the notch 201. The coil frame 302 also includes a notch 3023, which is located between the winding portion 3021 and the fitting portion 3022.

[0043] It should be noted that the yoke 304 is L-shaped. The yoke 304 is installed by inserting it between the extension piece 2012 and the side wall of the recess 201. Furthermore, by providing the notch 3023 on the coil frame 302, the coil frame 302 and the yoke 304 do not interfere with each other during side insertion.

[0044] Furthermore, such as Figure 4 and Figure 5 As shown, the winding portion 3021 has a first insertion hole 30211 at its center, and the yoke 304 has a second insertion hole 3041 at its end opposite to the armature 305. The magnetic circuit assembly 30 also includes an iron core 307, which passes through the first insertion hole 30211 and the second insertion hole 3041. The first insertion hole 30211 and the second insertion hole 3041 provide space for placing the iron core 307.

[0045] Furthermore, such as Figure 7 As shown, to achieve the connection of the two ends of the compression spring 306 to the armature 305 and the yoke 304 respectively, the end of the armature 305 near the yoke 304 has a groove 3051, and one end of the compression spring 306 has two hooks 3061. One end of the compression spring 306 is riveted to the armature 305, and the hooks 3061 on the other end of the compression spring 306 extend into the groove 3051 and abut against the groove wall of the groove 3051.

[0046] Furthermore, to achieve the connection between the armature 305 and the push rod 50, such as... Figure 7As shown, the armature 305 has a hook groove 3052 at one end near the push rod 50, and the push rod 50 has a hook 501 at one end, which extends into the hook groove 3052.

[0047] Furthermore, to guide the push rod 50, such as... Figure 6 As shown, the push rod 50 has a groove 502, and the base 20 also has a protrusion 203, which extends into the groove 502.

[0048] Furthermore, to achieve the installation of the moving spring 403 and the stationary spring 404, as follows: Figure 6 As shown, the other side of the base 20 has two mounting grooves 204. The moving spring 403 is provided in one mounting groove 204, and the stationary spring 404 is provided in the other mounting groove 204.

[0049] In summary, the push-rod relay described in the embodiments of this application is explained, which provides advantages such as pin bending, smaller overall height, and coil frame side insertion.

[0050] It is worth mentioning that, in this embodiment, the push-rod relay has a simple structure, does not involve complex manufacturing processes or expensive materials, and is highly economical. At the same time, for manufacturers, the push-rod relay provided in this application is easy to produce and inexpensive, which is more conducive to controlling production costs and further facilitates product promotion and use.

[0051] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from these principles.

Claims

1. A push-rod type relay, characterized in that: The push-rod type relay includes The housing has a receiving cavity; A base, wherein the base is disposed within the receiving cavity, and one side of the base has a notch and a groove; A magnetic circuit assembly includes a coil frame, a coil group, and two coil pins. The coil frame has a winding portion and a fitting portion. The coil group is wound on the winding portion. The coil frame is inserted from one side of the base and the winding portion is placed in the notch. The fitting portion is engaged with the groove. One end of the two coil pins is connected to the coil group. The other end of the two coil pins is bent a predetermined distance along the width direction of the outer shell after extending out of the cavity opening. A contact assembly, comprising a moving contact pin and a stationary contact pin, wherein one end of the moving contact pin and the stationary contact pin is bent a predetermined distance along the width direction of the housing after extending out of the cavity opening.

2. The push-rod relay according to claim 1, characterized in that: The magnetic circuit assembly further includes a yoke and an armature; the push rod relay further includes a push rod; the contact assembly further includes a moving spring and a stationary spring; one end of the yoke is located at one end of the coil frame having the winding portion; the armature is oscillatingly mounted at the other end of the yoke; one end of the push rod is connected to the other end of the armature away from the yoke; the moving spring and the stationary spring are both mounted on the base and spaced at a predetermined distance; the end of the push rod away from the armature is connected to the moving spring; the moving spring is fixedly connected to the moving contact pin; and the stationary spring is fixedly connected to the stationary contact pin.

3. The push-rod relay according to claim 2, characterized in that: The notch has an extension piece on the side near the coil pin, and the end of the yoke near the armature passes between the extension piece and the side wall of the notch. The coil frame also includes a notch located between the winding portion and the fitting portion.

4. The push-rod relay according to claim 3, characterized in that: The winding section has a first insertion hole at its center, and the yoke has a second insertion hole at the end opposite to the armature. The magnetic circuit assembly also includes an iron core, which passes through the first insertion hole and the second insertion hole.

5. The push-rod relay according to claim 2, characterized in that: The magnetic circuit assembly also includes a compression spring, the two ends of which are respectively connected to the end of the armature away from the push rod and the end of the yoke close to the armature.

6. The push-rod relay according to claim 5, characterized in that: The armature has a groove at one end near the yoke, and the compression spring has two hooks at one end. One end of the compression spring is riveted to the armature, and the hooks on the other end of the compression spring extend into the groove and abut against the groove wall.

7. The push-rod relay according to claim 2, characterized in that: The armature has a groove at one end near the push rod, and the push rod has a hook at one end, which extends into the groove.

8. The push-rod relay according to claim 2, characterized in that: The push rod has a groove, and the base also has a protrusion that extends into the groove.

9. The push-rod relay according to claim 2, characterized in that: The base has two mounting slots on the other side, one of which contains the moving spring and the other contains the stationary spring.

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