CN211980518U - Magnetic shield for microminiature relay of state grid electric meter - Google Patents
Magnetic shield for microminiature relay of state grid electric meter Download PDFInfo
- Publication number
- CN211980518U CN211980518U CN202020755336.XU CN202020755336U CN211980518U CN 211980518 U CN211980518 U CN 211980518U CN 202020755336 U CN202020755336 U CN 202020755336U CN 211980518 U CN211980518 U CN 211980518U
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- relay
- accommodating space
- top surface
- accommodation space
- magnetic shield
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Abstract
The utility model relates to a magnetic shield for national grid ammeter subminiature relay, including the magnetic shield body, for being used for holding, screening relay's accommodation space, accommodation space mainly encloses to close by a top surface and at least three side and forms, make accommodation space's bottom form and put into or take out the opening of relay, at least one injection hole has been seted up on the accommodation space top surface, after the opening that the relay passes through the accommodation space bottom is put into the accommodation space of magnetic shield body in, through to pouring into the downthehole injecting glue water of pouring into, realize face-to-face bonding between the inner wall that can make the accommodation space top surface and the top surface of corresponding relay, and realize face-to-face bonding between the inner wall of at least one accommodation space side and the side of corresponding relay. The utility model discloses not only realized the magnetic field shielding of relay, can not disturb the original mounting means of relay moreover.
Description
Technical Field
The utility model relates to a relay field specifically is a separate magnetic shield that is used for state net ammeter subminiature relay.
Background
An electromagnetic relay is an electromagnetic component in which one or more output quantities produce predetermined transitions when an input electrical signal reaches a prescribed condition, and functions mainly as an automatic switch for turning on or off a controlled circuit.
On one hand, the microminiature electromagnetic relay has no function of preventing an external strong magnetic field (less than 300 mT), and has hidden troubles of electricity stealing or damage by using strong magnetism after the ammeter is installed; on the other hand, the new national grid standard puts a definite requirement on the external magnetic field resistance of the electromagnetic relay, and the 300mT magnetic field is required to be applied to the outer side of the shell of the three-phase electric energy meter, so that the electric energy meter can keep normal operation and the accuracy meets the requirement.
Disclosure of Invention
The utility model aims to provide a: in view of the above-mentioned deficiencies of the prior art, the magnetic shield for the ultra-small relay of the grid electric meter is provided, which not only realizes the magnetic field shielding of the relay, but also does not interfere with the original installation mode of the relay.
The utility model adopts the technical proposal that the magnetic shield for the microminiature relay of the state grid ammeter comprises a magnetic shield body, the magnetic shield body is an accommodating space for accommodating and shielding the relay, the accommodating space is mainly formed by enclosing a top surface and at least three side surfaces, an opening for placing or taking out the relay is formed at the bottom of the accommodating space, at least one injection hole is formed in the top surface of the accommodating space, when the relay is put into the accommodating space of the magnetism isolating cover body through the opening at the bottom of the accommodating space, the inner wall of the top surface of the containing space and the top surface of the corresponding relay can be bonded face to face by pouring glue into the pouring hole, and the inner wall of at least one side surface of the accommodating space is bonded with the side surface of the corresponding relay in a face-to-face mode.
Preferably, the magnetism isolating cover body is made of iron and magnetic conductive materials.
Preferably, the top surface and all the side surfaces of the accommodating space are of an integrally formed structure.
The utility model has the advantages that: the utility model discloses not only realized the magnetic field shielding of relay, can not disturb the original mounting means of relay moreover.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an installation diagram of the present invention.
The reference numbers in the figures mean: 1-magnetic shield body; 101-a containment space; 102-pouring a hole; 2, a relay; 201 — appliance pin.
Detailed Description
Referring to fig. 1 and 2: the utility model relates to a magnetic shield for state net ammeter subminiature relay, including magnetic shield body 1. The utility model discloses not only realized relay 2's magnetic field shielding, can not disturb the mounting means of relay 2 originally moreover.
The magnetism isolating cover body 1 is an accommodating space 101 for accommodating and shielding the relay 2, the size of the accommodating space 101 is matched with the outline of the relay 2, and after the relay 2 is arranged in the accommodating space 101, the electric appliance pins 201 of the relay 2 are exposed out of the accommodating space 101, so that the relay 2 can be conveniently installed and used.
The accommodating space 101 is mainly formed by enclosing a top surface and at least three side surfaces, so that an opening for placing or taking out the relay is formed at the bottom of the accommodating space 101. In this embodiment, the accommodating space 101 is mainly enclosed by a top surface and four side surfaces.
At least one pouring hole 102 is formed on the top surface of the accommodating space 101. In this embodiment, a pouring hole 102 is formed in a top surface of the accommodating space 101, and the pouring hole 102 communicates with the accommodating space 101. The size of the injection hole 102 is set according to actual conditions.
After the relay 2 is placed into the accommodating space 101 of the magnetism isolating cover body 1 through the opening at the bottom of the accommodating space 101, glue (for example, epoxy glue) is poured into the pouring hole 102, so that the inner wall of the top surface of the accommodating space 101 and the top surface of the corresponding relay 2 can be bonded face to face, the inner wall of at least one side surface of the accommodating space 101 and the side surface of the corresponding relay 2 can be bonded face to face, and besides, the side surfaces of one or more other accommodating spaces 101 are directly bonded with the peripheral wall of the relay 2. The separation and the falling of the magnetic shield and the relay 2 are avoided.
In order to enable the glue to rapidly flow to and fill the gap between the accommodating space 101 and the corresponding relay 2 arranged in the accommodating space 101, a plurality of first diversion trenches are formed in the inner wall of the top surface of the accommodating space 101, the starting end of each first diversion trench is communicated with the injection hole 102, and the tail end of each first diversion trench horizontally diverges and extends to the periphery. A plurality of second diversion trenches are formed in the inner wall of the side surface (four side surfaces) of the accommodating space 101, the starting end of each second diversion trench is communicated with the tail end of the corresponding first diversion trench, and the tail end does not extend out of the bottom of the corresponding side surface, so that a blind structure is formed. The second flow guide grooves on the inner wall of each side face are mutually parallel, and the depth and the width of each second flow guide groove from top to bottom (from the starting end to the tail end) gradually decrease progressively so as to facilitate the speed of dispersion and permeation of glue.
Preferably, the magnetism isolating cover body 1 is made of iron and magnetic conductive materials. Of course, other shielding materials may be selected. For example, electrical pure iron.
Preferably, the top surface and all the side surfaces of the accommodating space 101 are of an integrally formed structure. On one hand, the shielding effect is better, and on the other hand, the manufacture is simpler and more convenient.
The utility model discloses a this kind of design, magnetism shield can also be through the assembly of 2 one-to-one of batchization's mode and relay, sell again, and the assembly mode is simple. Fix a plurality of relays 2 on mounting platform through conventional fixed mode, aim at a corresponding relay 2 respectively with a plurality of magnet shields through a plurality of arms, and from top to bottom move, until every magnet shield and a corresponding relay 2 cover together, then the glue that will prepare in advance through another a plurality of robotic arms is corresponding respectively and slowly pours into the notes hole 102 of pouring of corresponding magnet shield, accomplishes batch assembly. The motion tracks of the mechanical arm can be realized by the control of a PLC (programmable logic controller) or a single chip microcomputer and the like in a conventional programming mode.
The above detailed description is only for the purpose of illustration, but not for the purpose of limitation. Although the present invention has been described in detail with reference to the specific embodiments thereof, it will be understood by those skilled in the art that: the above-mentioned specific technical solutions can still be modified, or some technical features thereof can be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the present invention in its essence.
Claims (3)
1. The utility model provides a separate magnetic cover for national grid ammeter subminiature relay, includes separating magnetic cover body, its characterized in that:
the magnetic shield body is an accommodating space for accommodating and shielding the relay,
the accommodating space is mainly formed by enclosing a top surface and at least three side surfaces,
the bottom of the accommodating space is formed with an opening for inserting or taking out the relay,
the top surface of the containing space is provided with at least one pouring hole,
after the relay is placed into the accommodating space of the magnetism isolating cover body through the opening in the bottom of the accommodating space, glue is poured into the pouring holes, so that the inner wall of the top surface of the accommodating space and the top surface of the corresponding relay can be bonded face to face, and the inner wall of the side surface of at least one accommodating space and the side surface of the corresponding relay can be bonded face to face.
2. The flux barrier cover for a microminiature relay of a grid electric meter according to claim 1, wherein: the magnetism isolating cover body is made of a magnetic conducting material.
3. The flux barrier cover for a microminiature relay of a grid electric meter according to claim 1, wherein: the top surface and all the side surfaces of the accommodating space are of an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020755336.XU CN211980518U (en) | 2020-05-09 | 2020-05-09 | Magnetic shield for microminiature relay of state grid electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020755336.XU CN211980518U (en) | 2020-05-09 | 2020-05-09 | Magnetic shield for microminiature relay of state grid electric meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211980518U true CN211980518U (en) | 2020-11-20 |
Family
ID=73370648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020755336.XU Active CN211980518U (en) | 2020-05-09 | 2020-05-09 | Magnetic shield for microminiature relay of state grid electric meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211980518U (en) |
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2020
- 2020-05-09 CN CN202020755336.XU patent/CN211980518U/en active Active
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