CN112185767A

CN112185767A - Driving device for relay and relay with same

Info

Publication number: CN112185767A
Application number: CN202011182260.7A
Authority: CN
Inventors: 王兴生
Original assignee: Fuyang Zhongjiao Intelligent Technology Co ltd
Current assignee: Fuyang Zhongjiao Intelligent Technology Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-01-05

Abstract

The invention discloses a driving device for a relay, and relates to the technical field of relays. The invention comprises a push rod and a movable iron core; a supporting plate is fixedly arranged at the top of the pushing rod; a pair of moving contacts is fixed on the top of the supporting plate; the bottom of the supporting plate is provided with a movable iron core; a supporting plate is transversely arranged below the supporting plate; the bottom of the supporting plate is integrally formed with a pair of guide rods. The invention also provides a relay, which comprises a driving device; the driving device can be matched in a cavity formed in the upper shell and the lower shell in a vertically movable manner; a heat dissipation pipeline is fixed at the top of the upper shell and extends into the upper shell; a positioning guide piece is fixed at the bottom of the lower shell; a driving coil is arranged in the positioning guide piece. According to the invention, the driving device is movably matched in the upper shell and the lower shell, and the heat dissipation pipeline is fixed at the top of the upper shell, so that the problems that the push rod is difficult to suck and release after the existing relay is used for a period of time, and the heat is difficult to discharge in time are solved.

Description

Driving device for relay and relay with same

Technical Field

The invention belongs to the technical field of relays, and particularly relates to a driving device for a relay and the relay with the same.

Background

The power relay is a high-voltage high-power supply switching-on and switching-off device, a low-voltage coil flows through current to generate electromagnetic force, a movable iron core drives a push rod to enable a movable contact plate to be in contact with a stationary contact to be in high-voltage switching-on, after the low-voltage coil is powered off, the push rod drives the movable contact plate to be switched off from the stationary contact under the reaction force of a reset elastic piece, and frequent on-off control of a circuit is achieved through the frequent motion process. The relay is widely applied to the fields of power generation, power distribution and power utilization of electric vehicles, solar power generation and energy storage power stations.

After the existing relay is used for a period of time, the push rod is easy to become unsmooth due to the increase of resistance, and the attraction and the release are insensitive. In addition, the internal parts of the existing relay easily generate a large amount of heat when the relay is clutched, and the heat is difficult to be discharged in time, so that the service life of the relay is greatly shortened.

Disclosure of Invention

The invention aims to provide a driving device for a relay and the relay with the same.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a driving device for a relay, which comprises a push rod and a movable iron core, wherein the push rod is connected with the movable iron core; a supporting plate is fixedly arranged at the top of the pushing rod; a pair of moving contacts is fixed on the top of the supporting plate; a movable iron core is arranged at the bottom of the supporting plate; a supporting plate is transversely arranged below the supporting plate; the bottom of the supporting plate is integrally formed with a pair of guide rods.

Furthermore, a first elastic reset piece and a shock pad are adjusted on the peripheral side surface of the push rod; the shock pad is a hollow boss structure, and with the inside joint cooperation of the first elasticity piece that resets.

Furthermore, the side surface of the periphery of the guide rod is sleeved with a second elastic reset piece, and the second elastic reset piece is matched with the bottom of the supporting plate.

A relay comprising said drive means; the driving device can be movably matched in a cavity formed in the upper shell and the lower shell up and down; a heat dissipation pipeline is fixed at the top of the upper shell and extends into the upper shell; a positioning guide piece is fixed at the bottom of the lower shell; a driving coil is arranged in the positioning guide piece; a pair of leading-out ends is fixed at the top of the upper shell; a connecting rod is fixed at the bottom of the leading-out end, and a static contact is arranged at the bottom of the connecting rod.

Further, an annular channel for limiting is fixedly arranged on the inner bottom surface of the lower shell; the middle part of the bottom surface in the annular groove channel protrudes upwards to form an annular limiting block.

Furthermore, the top of the heat dissipation pipeline is matched with a rainproof cover body; a perforated transverse plate is fixed on the inner wall of the heat dissipation pipeline; an electric lifting rod is fixed on the upper surface of the transverse plate with the holes, and the telescopic end of the electric lifting rod is fixed with the bottom of the rainproof cover body.

Furthermore, a fan for exhausting air is arranged below the transverse plate with the holes; a temperature sensor is arranged above or below the fan; the electric lifting rod, the fan and the temperature sensor are respectively connected with the controller, when the temperature sensor detects that the temperature in the device exceeds a preset value, the electric lifting rod is controlled by the controller to eject out the rainproof cover body, and meanwhile, the fan is started to timely discharge heat in the device through the heat dissipation pipeline, so that the device is prevented from being damaged.

Furthermore, a plurality of groups of heat dissipation holes are formed in the peripheral side face of the lower end of the heat dissipation pipeline, and when the fan is started, heat is discharged from the bottom of the heat dissipation pipeline and the heat dissipation holes, so that the heat dissipation effect of the fan is improved; the heat dissipation pipeline is made of heat conduction and insulation materials.

Further, the positioning guide is of an annular structure; the upper surface of the positioning guide piece is provided with a pair of blind holes; the blind hole is uniformly distributed with a plurality of groups of vent holes along the circumferential direction.

Further, the driving coil is fixed on the top of a base; the bottom of the base is provided with a clamping groove; a cover body is detachably fixed on the upper surface of the driving coil; the middle part of the cover body is provided with a through hole.

The invention has the following beneficial effects:

1. according to the invention, the plurality of groups of heat dissipation holes are formed in the peripheral side surface of the lower end of the heat dissipation pipeline, so that when the fan is started, heat is discharged from the bottom of the heat dissipation pipeline and the heat dissipation holes, and the heat dissipation effect of the fan is improved.

2. The electric lifting rod, the fan and the temperature sensor are respectively connected with the controller, when the temperature sensor detects that the temperature in the device exceeds a preset value, the controller controls the electric lifting rod to push out of the rainproof cover body, and meanwhile, the fan is started to discharge the heat in the device in time through the heat dissipation pipeline, so that the device is prevented from being damaged.

3. According to the invention, the pair of blind holes are formed in the upper surface of the positioning guide piece, and the inner walls of the blind holes are in sliding fit with the guide rod, so that the push rod can stably rise or fall conveniently, and the motion stability of the push rod is improved; the blind holes are uniformly provided with a plurality of groups of vent holes, so that the resistance generated when the push rod ascends or descends is reduced.

4. According to the invention, the clamping groove is formed at the bottom of the base, and the inner wall of the clamping groove is clamped with the annular limiting block, so that the driving coil can be rapidly installed and fixed in the lower shell, and meanwhile, the driving coil is convenient to disassemble.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a driving apparatus for a relay according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

in the drawings, the components represented by the respective reference numerals are listed below:

1-push rod, 2-upper shell, 3-lower shell, 4-heat dissipation pipe, 5-positioning guide piece, 6-drive coil, 101-support plate, 102-movable contact, 103-movable iron core, 104-first elastic reset piece, 105-shock pad, 106-supporting plate, 107-guide rod, 108-second elastic reset piece, 201-leading-out end, 202-connecting rod, 203-static contact, 301-annular channel, 302-annular limiting block, 401-rainproof cover, 402-fan, 403-perforated transverse plate, 404-electric lifting rod, 405-temperature sensor, 406-heat dissipation hole, 501-blind hole, 502-vent hole, 601-base, 602-clamping groove, 603-cover and 604-through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention is a driving device for a relay, including a push rod 1 and a movable iron core 103; a supporting plate 101 is fixedly arranged at the top of the push rod 1; a pair of moving contacts 102 is fixed on the top of the supporting plate 101; the bottom of the supporting plate 101 is provided with a movable iron core 103; a supporting plate 106 is transversely arranged below the supporting plate 101; a pair of guide bars 107 are integrally formed at the bottom of the plate 106.

Preferably, as shown in fig. 1, a first elastic reset piece 104 and a shock pad 105 are adjusted on the peripheral side surface of the push rod 1, so as to buffer and damp the movement of the push rod 1; the shock pad 105 is a hollow boss structure and is engaged with the interior of the first elastic reset element 104.

Preferably, as shown in fig. 1, the second elastic restoring member 108 is sleeved on the peripheral side of the guide rod 107 and is engaged with the bottom of the supporting plate 106.

A relay includes a driving device; the driving device can be movably matched in the cavity formed in the upper shell 2 and the lower shell 3 up and down; a heat dissipation pipeline 4 is fixed at the top of the upper shell 2 and extends into the upper shell 2, so that heat in the upper shell 2 can be conveniently discharged through the heat dissipation pipeline 4; a positioning guide 5 is fixed at the bottom of the lower shell 3; a driving coil 6 is arranged in the positioning guide 5; a pair of leading-out terminals 201 are fixed on the top of the upper shell 2; a connecting rod 202 is fixed at the bottom of the leading-out end 201, and a fixed contact 203 is arranged at the bottom of the connecting rod 202.

Preferably, as shown in fig. 1 and 3, an annular channel 301 for limiting is fixedly installed on the inner bottom surface of the lower shell 3; the middle part of the inner bottom surface of the annular groove channel 301 protrudes upwards to form an annular limiting block 302.

Preferably, as shown in fig. 1-2, a rain cover 401 is fitted on the top of the heat dissipation pipe 4; a perforated transverse plate 403 is fixed on the inner wall of the heat dissipation pipeline 4; an electric lifting rod 404 is fixed on the upper surface of the transverse plate 403 with holes, the telescopic end of the electric lifting rod 404 is fixed with the bottom of the rainproof cover 401, and the rainproof cover 401 is ejected or closed by lifting the electric lifting rod 404, so that heat extraction and sealing are performed.

Preferably, as shown in fig. 1-2, a fan 402 for exhausting air is arranged below the transverse plate 403 with holes; a temperature sensor 405 is arranged above or below the fan 402; electric lift pole 404, fan 402 and temperature sensor 405 are connected with the controller respectively, and when temperature sensor 405 detected the device in the temperature exceeded the default, through the ejecting rain-proof lid 401 of controller control electric lift pole 404, start fan 402 simultaneously with the heat in the device in time discharge through heat dissipation pipeline 4, avoid damaging the device.

Preferably, as shown in fig. 1-2, a plurality of sets of heat dissipation holes 406 are formed on the lower peripheral side surface of the heat dissipation pipe 4, and when the fan 402 is started, heat is discharged from the bottom of the heat dissipation pipe 4 and the heat dissipation holes 406, so that the heat dissipation effect of the fan 402 is improved; the heat dissipation pipeline 4 is made of a heat conduction insulating material, so that a large amount of heat generated when the moving contact 102 is in clutch with the static contact 203 can be discharged in time, and the service life of the device is prolonged.

Preferably, as shown in fig. 1, the positioning guide 5 is of an annular structure; the upper surface of the positioning guide piece 5 is provided with a pair of blind holes 501, the inner walls of the blind holes 501 are in sliding fit with the guide rod 107, so that the push rod 1 can stably ascend or descend, and the motion stability of the push rod 1 is improved; the blind hole 501 is evenly provided with a plurality of groups of vent holes 502 along the circumferential direction, so that the resistance generated when the push rod 1 ascends or descends is reduced.

Preferably, as shown in fig. 1, the driving coil 6 is fixed on top of a base 601; the bottom of the base 601 is provided with a clamping groove 602, and the inner wall of the clamping groove 602 is clamped with the annular limiting block 302, so that the driving coil 6 can be quickly installed and fixed in the lower shell 3, and meanwhile, the dismounting is convenient; a cover 603 is detachably fixed on the upper surface of the driving coil 6 and is used for assisting the matching of the top of the driving coil 6; the middle of the cover 603 is provided with a through hole 604 for the movable iron core 103 to pass through when moving up and down.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A drive device for a relay includes a push rod (1) and a movable iron core (103); the method is characterized in that:

a supporting plate (101) is fixedly arranged at the top of the push rod (1); a pair of moving contacts (102) is fixed on the top of the supporting plate (101); a movable iron core (103) is arranged at the bottom of the supporting plate (101);

a supporting plate (106) is transversely arranged below the supporting plate (101); the bottom of the supporting plate (106) is integrally formed with a pair of guide rods (107).

2. The drive device for the relay according to claim 1, wherein a first elastic reset member (104) and a shock pad (105) are adjusted on the peripheral side surface of the push rod (1); the shock pad (105) is of a hollow boss structure and is matched with the inner portion of the first elastic reset piece (104) in a clamping mode.

3. The driving device for the relay according to claim 1, wherein a second elastic reset member (108) is sleeved on the peripheral side surface of the guide rod (107) and is matched with the bottom of the supporting plate (106).

4. A relay, characterized by comprising a drive device according to any one of claims 1 to 3; the driving device can be matched in a cavity formed in the upper shell (2) and the lower shell (3) in a vertically movable mode;

a heat dissipation pipeline (4) is fixed at the top of the upper shell (2) and extends into the upper shell (2); a positioning guide piece (5) is fixed at the bottom of the lower shell (3); a driving coil (6) is arranged in the positioning guide piece (5);

a pair of leading-out ends (201) is fixed at the top of the upper shell (2); a connecting rod (202) is fixed at the bottom of the leading-out end (201), and a static contact (203) is arranged at the bottom of the connecting rod (202).

5. The relay according to claim 4, characterized in that the inner bottom surface of the lower housing (3) is fixedly provided with an annular groove channel (301) for limiting; the middle part of the inner bottom surface of the annular groove (301) protrudes upwards to form an annular limiting block (302).

6. A relay according to claim 4 or 5, characterized in that a rain cover (401) is fitted on top of the heat dissipation duct (4);

a perforated transverse plate (403) is fixed on the inner wall of the heat dissipation pipeline (4); an electric lifting rod (404) is fixed on the upper surface of the transverse plate with the hole (403), and the telescopic end of the electric lifting rod (404) is fixed with the bottom of the rainproof cover body (401).

7. A relay according to claim 6, characterized in that a fan (402) for exhausting air is arranged below the perforated cross plate (403); a temperature sensor (405) is arranged above or below the fan (402);

the electric lifting rod (404), the fan (402) and the temperature sensor (405) are respectively connected with the controller.

8. The relay according to claim 6, wherein the heat dissipation pipe (4) is provided with a plurality of sets of heat dissipation holes (406) on the lower peripheral side; the heat dissipation pipeline (4) is made of a heat conduction and insulation material.

9. A relay according to claim 4 or 7, characterized in that the positioning guide (5) is of an annular configuration; the upper surface of the positioning guide piece (5) is provided with a pair of blind holes (501);

the blind hole (501) is uniformly distributed with a plurality of groups of vent holes (502) along the circumferential direction.

10. A relay according to claim 4 or 8, wherein the drive coil (6) is fixed to the top of a base (601); the bottom of the base (601) is provided with a clamping groove (602);

a cover body (603) is detachably fixed on the upper surface of the driving coil (6); the middle part of the cover body (603) is provided with a through hole (604).