CN214588637U

CN214588637U - Small-sized high-power relay

Info

Publication number: CN214588637U
Application number: CN202120746429.0U
Authority: CN
Inventors: 许赟军; 王钢; 黄果
Original assignee: NINGBO ZETTLER ELECTRONICS CO LTD
Current assignee: NINGBO ZETTLER ELECTRONICS CO LTD
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-11-02
Anticipated expiration: 2031-04-13

Abstract

The utility model discloses a small-sized high-power relay, which comprises a bracket, an iron core, a coil, a yoke, an armature and a movable reed, wherein the end part of the movable reed is provided with a movable reed terminal, a static reed is fixed on the upper bracket, and a static reed terminal which is opposite to the movable reed terminal is arranged on the static reed; the movable spring comprises a first part fixedly matched with the armature, a second part pressed against the yoke iron and an extraction pin, the extraction pin is fixed on the armature, and the end part of the second part of the movable spring is limited between the yoke iron and the extraction pin. The utility model discloses a through drawing forth foot with product movable spring and replacing product yoke drawing forth foot, guaranteeing the condition of enough current-carrying area, the product load circuit reduces the bridging, and the movable contact spring draws forth the foot with the movable contact spring and directly links to each other, and the load passes through the movable contact spring and directly draws forth the foot to the movable contact spring, has improved the stability of relay load circuit, has further reduced the product temperature rise.

Description

Small-sized high-power relay

Technical Field

The utility model relates to a relay field.

Background

The relay is a commonly used electronic component, and the purpose of safe operation is achieved by controlling large current through small current. Generally, a PCB type pin-out relay is welded to install the relay on a circuit board to realize functions. The existing relay movable spring lead-out pin is generally provided with a lead-out pin on a yoke, a load circuit is led out through a static spring piece, a static contact, a movable spring piece and the yoke, a load needs to be bridged through the yoke, the process is serious in heating, and the relay is small in size and cannot rapidly dissipate heat.

Therefore, it is necessary to provide a relay having better electrical conductivity and heat dissipation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a to the not enough of existence among the prior art, provide a small-size high-power relay.

The utility model discloses a realize through following technical scheme: a small-sized high-power relay comprises a support, wherein the support comprises an upper support, a lower support and a connecting pipe for connecting the upper support and the lower support, an iron core is fixed in the connecting pipe, a coil is sleeved outside the connecting pipe, a yoke is fixedly arranged on one side of the support, which is positioned on the coil, an armature iron movably matched with the yoke is arranged at the upper end of the yoke, the small-sized high-power relay also comprises a movable spring, a movable spring terminal is arranged at the end part of the movable spring, a static spring is fixed on the upper support, and a static spring terminal opposite to the movable spring terminal is arranged on the static spring; the movable spring comprises a first part fixedly matched with the armature, a second part pressed against the yoke iron and an extraction pin, the extraction pin is fixed on the armature, and the end part of the second part of the movable spring is limited between the yoke iron and the extraction pin.

In the technical scheme, the yoke is provided with two positioning protrusions, and the leading-out pins are provided with positioning holes matched with the positioning protrusions.

In the technical scheme, the leading-out pin and the movable reed are fixed in a resistance welding mode.

In the technical scheme, the bottom end of the lower support is provided with a groove, and the lower end of the yoke is bent and buckled into the groove.

In the technical scheme, one side of the lower support is provided with a notch groove, the top of the notch groove is provided with a coil blocking plate for blocking the coil, the bottom of the notch groove is located on two sides of the coil blocking plate, lead-out wire holes of the coil are arranged, and positive and negative lead-out wires of the coil penetrate out of the lead-out wire holes.

In the above technical scheme, the lead-out pin is made of copper.

The utility model discloses following beneficial effect has: compared with the prior art, the utility model has the advantages of through drawing forth the foot with product movable spring and replacing product yoke drawing forth the foot, guaranteeing the condition of enough current-carrying area, product load circuit reduces the bridging, and the movable contact spring draws forth the foot directly with the movable contact spring and links to each other, and the load passes through the movable contact spring and directly arrives the movable contact spring and draws forth the foot, has improved relay load circuit's stability, has further reduced the product temperature rise.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the bracket of the present invention.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 2, a small-sized high-power relay includes a bracket 1, where the bracket 1 includes an upper bracket 10, a lower bracket 11, and a connecting pipe 12 connecting the upper bracket 10 and the lower bracket 11, an iron core 2 is fixed in the connecting pipe 12, a coil 3 is sleeved outside the connecting pipe 12, a yoke 4 is fixed on one side of the bracket 1 located at the coil 3, an armature 5 movably matched with the yoke 4 is arranged at the upper end of the yoke 4, and a movable spring 6 is further included, a movable spring terminal is arranged at the end of the movable spring 6, a stationary spring 8 is fixed on the upper bracket 10, and a stationary spring terminal is arranged on the stationary spring 8 and is opposite to the movable spring terminal; the movable spring 6 comprises a first part 60 fixedly matched with the armature 5, a second part 61 pressed against the yoke 4 and an extraction pin 7, wherein the extraction pin 7 is fixed on the armature 5, and the end part of the second part 61 of the movable spring 6 is limited between the yoke 4 and the extraction pin 7.

In the structure, the product movable spring lead-out pins are used for replacing the product yoke lead-out pins, so that the condition of enough current carrying area is ensured, bridging of a product load circuit is reduced, the movable spring piece is directly connected with the movable spring lead-out piece, and the load is directly led out to the movable spring lead-out pins through the movable spring piece, so that the stability of the relay load circuit is improved, and the temperature rise of the product is further reduced.

Furthermore, the lead-out pins 7 are made of copper, and the conductivity and the heat dissipation performance of the copper pins are superior to those of iron lead-out pins, so that the stability of a relay load circuit can be further improved when the relay load circuit is used, and the temperature rise of a product is further reduced.

Two positioning protrusions 40 are arranged on the yoke 4, and positioning holes matched with the positioning protrusions 40 are arranged on the leading-out pins 7. The leading-out pin 7 and the movable reed 6 are fixed in a resistance welding mode.

In the above technical solution, the bottom end of the lower bracket 11 is provided with a groove 110, and the lower end of the yoke 4 is bent and buckled into the groove 110. In order to provide further positioning for the yoke 4 when it is fixed.

A notch groove 111 is formed in one side of the lower support 11, a coil blocking plate 80 for blocking the coil 3 is arranged at the top of the notch groove 111, lead-out wire holes 112 of the coil 3 are formed in positions, located on two sides of the coil blocking plate 80, of the bottom of the notch groove 111, and positive and negative lead-out wires of the coil 3 penetrate out of the lead-out wire holes 112. In the above configuration, by providing the lead wire 112 at the position of the cutaway groove 111, the possibility of contact between the coil 3 and the lead wire 112 can be avoided, and the temperature in the lead wire 112 can be dissipated through the space of the cutaway groove 111.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The foregoing embodiments and description of the invention have been provided in the present application for the purpose of illustrating the principles of the invention and is subject to various changes and modifications without departing from the spirit and scope of the invention. All such variations and modifications are intended to be within the scope of the claimed invention.

Claims

1. A small high-power relay comprises a support (1), wherein the support (1) comprises an upper support (10), a lower support (11) and a connecting pipe (12) for connecting the upper support (10) and the lower support (11), an iron core (2) is fixed in the connecting pipe (12), a coil (3) is sleeved outside the connecting pipe (12), a yoke (4) is fixedly arranged on one side, located on the coil (3), of the support (1), an armature (5) movably matched with the yoke (4) is arranged at the upper end of the yoke (4), the small high-power relay further comprises a movable spring piece (6), a movable spring piece terminal is arranged at the end part of the movable spring piece (6), a fixed spring piece (8) is fixed on the upper support (10), and a fixed spring piece terminal opposite to the movable spring piece terminal is arranged on the fixed spring piece (8); the method is characterized in that: the movable spring (6) comprises a first part (60) fixedly matched with the armature (5) and a second part (61) pressed against the yoke iron (4), and further comprises a lead-out pin (7), the lead-out pin (7) is fixed on the armature (5), and the end part of the second part (61) of the movable spring (6) is limited between the yoke iron (4) and the lead-out pin (7).

2. A small-sized high-power relay according to claim 1, wherein: two positioning protrusions (40) are arranged on the yoke (4), and positioning holes matched with the positioning protrusions (40) are arranged on the leading-out pins (7).

3. A small-sized high-power relay according to any one of claims 1 or 2, wherein: the leading-out pin (7) and the movable reed (6) are fixed in a resistance welding mode.

4. A small-sized high-power relay according to claim 1, wherein: the bottom end of the lower support (11) is provided with a groove (110), and the lower end of the yoke (4) is bent and buckled into the groove (110).

5. The small-sized high-power relay according to claim 1, wherein one side of the lower bracket (11) is provided with a notch groove (111), the top of the notch groove (111) is provided with a coil blocking plate (80) for blocking the coil (3), the bottom of the notch groove (111) is provided with lead-out holes (112) of the coil (3) at two sides of the coil blocking plate (80), and positive and negative lead-out wires of the coil (3) penetrate out of the lead-out holes (112).

6. A small-sized high-power relay according to claim 1, characterized in that the lead-out pin (7) is made of copper.