CN112103136A

CN112103136A - Time delay relay with anti-interference performance

Info

Publication number: CN112103136A
Application number: CN202010956605.3A
Authority: CN
Inventors: 胡令江
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-12
Filing date: 2020-09-12
Publication date: 2020-12-18

Abstract

The invention discloses a time delay relay with anti-interference performance, comprising: the time delay relay assembly consists of a first time delay relay and a second time delay relay, the front surfaces of the time delay relay assembly are provided with wiring terminal blocks, the tops of the time delay relay assembly are provided with dials, and the isolation transformers are arranged at intervals between the two sides and the middle parts of the two time delay relays; the time delay relay package is composed of a transparent mask, a shell and a base; the first output terminal of the time delay relay plug-in unit is connected to one end of an external manual closing button, the second output terminal is connected to the other end of the time delay relay plug-in unit, the first power supply terminal is connected to any one of the low-voltage side busbar of the external transformer, the second power supply terminal is connected to a zero line, and the third output terminal, the fourth output terminal, the fifth output terminal and the sixth output terminal are all located on one side of the inner portion of the shell and are respectively communicated with the first output terminal, the second output terminal and the power supply terminals. The invention can shield electromagnetic interference and show higher stability in circuit fault or abnormal state.

Description

Time delay relay with anti-interference performance

Technical Field

The invention relates to the technical field of relays, in particular to a time delay relay with anti-interference performance.

Background

The delay relay is a controller whose delay function is realized by electronic circuit, and can be extensively used in automatic control circuit whose rated AC voltage is below 380V, frequency is 50Hz/60Hz and DC voltage is 220V or below for time control and indication. A time delay relay is a very important component in an electrical control system. Generally, the power-on delay and the power-off delay are two types. The operation principle includes an electronic type and a mechanical type. The electronic type adopts the principle that the charging and discharging of a capacitor are matched with an electronic element to realize the time-delay action. The mechanical type is more, and the air bag type of an air bag and a spring is facilitated; of a timepiece escapement; there are also small shaded pole synchronous motors used to drive the cams. When the power system is in failure, the fault equipment can be automatically, quickly and selectively cut off from the power system, so that the rest part of the system can be quickly restored to normal operation, and the fault equipment can not be continuously damaged.

When the electronic product works, the electromagnetic disturbance is generated to the surrounding environment in a radiation and conduction mode, the generated electromagnetic disturbance is limited to a certain level, and the measurement can be carried out by a certain measurement means. The time relay takes the voltage use range of users into consideration, and some products of specifications adopt a switching power supply in a power supply part, so that uninterrupted electromagnetic disturbance can be generated when the time relay is used, and the emission of the time relay does not exceed the specified emission limit. The electronic product has certain anti-electromagnetic interference capability in the electromagnetic environment for working, and the electronic product cannot fail in the working environment. In addition, at present, a low-voltage main switch of a power distribution station is provided with a voltage loss tripper, when a 10 kilovolt line is in power failure or the line fails, the low-voltage main switch of the power distribution station area trips under the action of the voltage loss tripper, and when the failure recovers or the line is powered on, the low-voltage main switch cannot be automatically switched on, which is another big interference problem faced by a time delay relay protection device.

Disclosure of Invention

The invention mainly aims to provide a time delay relay with anti-interference performance, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention discloses a time delay relay with anti-interference performance, comprising:

the time delay relay assembly comprises a first time delay relay and a second time delay relay, the first time delay relay and the second time delay relay are the same in structural configuration, wiring terminal rows are arranged on the front faces of the first time delay relay and the second time delay relay, the first time delay relay and the second time delay relay are connected in parallel, a spacing space is reserved between adjacent faces of the first time delay relay and the second time delay relay, dial plates are arranged on the upper portions of the first time delay relay and the second time delay relay respectively, pointers are fixedly arranged on the dial plates, annular scales are arranged on the dial plates, isolation transformers are arranged on two sides of the first time delay relay and the second time delay relay and at intervals between the two sides and the middle portions of the first time delay relay and the second time delay relay, and coupled iron cores are arranged in the isolation transformers.

The encapsulation of time delay relay comprises transparent face guard, shell and base, and wherein, the shell comprises for the four boards that encircle first time delay relay and second time delay relay, has connect transparent face guard on the shell, and transparent face guard is fixed in the upper portion of shell through bolt or buckle, connects in the base under the shell, and the shell passes through the mounting to be connected on the base, and the base is the cuboid of platykurtic, and four corners of base are opened there are four through-holes.

The time delay relay plug-in comprises a first output terminal, and the first output terminal is connected to one end of an external manual closing button through a wiring plug; the second output terminal is connected to the other end of the external manual closing button through a wiring plug; the first power terminal is connected to any one of the low-voltage side busbars of the external transformer through a wiring plug and supplies power through alternating current 220V; the second power terminal is connected to a zero line of a bus bar at the low-voltage side of the external transformer through a wiring plug; the first output terminal, the second output terminal, a first power supply terminal and a second power supply terminal are fixedly connected through a connecting block; the third output terminal, the fourth output terminal, the fifth output terminal and the sixth output terminal are all located on one side of the inside of the shell, and are respectively communicated with the first output terminal, the second output terminal, the first power supply terminal, the second power supply terminal and the connecting block on one side opposite to the outside of the shell.

Furthermore, the shell is made of stainless steel plates, the thickness of the shell ranges from 1mm to 3mm, the fixing pieces are bolts, and the shell is fixed on the base through four bolts with the diameter of 6 mm.

Furthermore, the transparent mask is made of pvc material, and the thickness is between 1mm and 3 mm.

Furthermore, the thickness of base is 3mm, and four corners of base are opened has four through-holes that the diameter is 6mm, and the through-hole fixed connection is to outside low pressure master switch cabinet.

Furthermore, the first delay relay and the second delay relay are provided with eight terminal ends, wherein the live terminal is connected to the fifth output terminal, the zero terminal is connected to the sixth output terminal, and the first power supply terminal and the second power supply terminal are connected to the 220V alternating current power supply.

Furthermore, the wiring terminal strip of the first time delay relay and the wiring terminal strip of the second time delay relay pass through 1.5mm²The copper plastic wires are connected.

Further, the dial plate is rotatable, the dial cover is transparent, the scales indicate time between 0 and 30S through round concave points, setting delay time of the first delay relay is smaller than that of the second delay relay, the difference between the setting delay time of the first delay relay and that of the second delay relay is smaller than 2S, and the minimum setting time of the first delay relay is larger than 6S.

Furthermore, the magnetic circuit yokes of the first time delay relay and the second time delay relay are inserted on the base, and the coil rack is directly contacted and positioned with the base.

Compared with the prior art, the invention has the following beneficial effects:

first, avoid the time delay interference because of the power failure or trouble

When the electric equipment and the electronic product are used, the voltage is instantaneously dropped or interrupted in a short time due to the fault of a power transformation facility or the sudden large change of a load, the random deviation from the rated voltage lasts for a period of time, and the voltage drop or the short interruption can cause the working voltage of an integrated circuit of the electronic product to be dropped below the minimum working voltage level, so that the delay frequency division function of the integrated circuit of the electronic product can not work normally and reliably, thereby causing delay errors, even leading the product to be automatically reset, and restarting the delay work. The invention can realize the delayed closing of the low-voltage circuit breaker, is similar to the situation that a worker presses a closing button on site, realizes the delayed control by utilizing the self equipment condition, avoids the work that the rush-repair worker frequently arrives at the site manual delivery point, and greatly reduces the power failure time caused by the circuit breaking.

Two, anti-interference ability of common mode and differential mode

The invention adopts a design form that two delay relays are combined into a basic product, and a space for arranging a plurality of isolation transformers can be reserved between the two delay relays. The secondary of the isolation transformer is not connected to ground, and there is no potential difference between any two lines of the isolation transformer and ground. People can not get an electric shock when touching any line, so that the safety is high. And the output end and the input end of the isolation transformer are completely disconnected and isolated, so that the input end of the transformer, namely the power supply voltage supplied by a power grid, is effectively filtered. The windings of the isolation transformer are respectively shielded, and the shielding layers are independently grounded so as to cut off the electric field coupling of the primary side and the secondary side, so that the isolation effect is better. The isolation transformer with the shielding has a common isolation function and has the interference resistance of common mode and differential mode.

Drawings

The illustrative embodiments, drawings, and descriptions herein are presented to illustrate the invention and are not to be construed as limiting the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a partially enlarged view of an output terminal block according to the present invention;

FIG. 4 is an enlarged view of a portion of the dial of the present invention;

FIG. 5 is a partially enlarged schematic view of an isolation transformer according to the present invention;

FIG. 6 is a front cross-sectional view of the present invention;

FIG. 7 is a side cross-sectional view of the present invention;

wherein the figures include the following reference numerals: 1. a transparent mask; 2. a housing; 3. a first time delay relay; 4. a second time delay relay; 5. a base; 51. a fixing member; 60. connecting blocks; 61. a first output terminal; 62. a second output terminal; 63. a first power supply terminal; 64. a second terminal; 65. a wiring plug; 7. a dial plate; 71. a pointer; 72. calibration; 8. an indicator light; 9. an isolation transformer; 101. A third output terminal; 102. a fourth output terminal; 103. a fifth output terminal; 104. a sixth output terminal; 11. a terminal block; 12. and (3) an iron core.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments, but not limited to the embodiments in the following examples.

The first embodiment is as follows:

as shown in fig. 1 to 7, the present embodiment provides a delay relay with interference immunity, including: the time delay relay assembly comprises a first time delay relay 3 and a second time delay relay 4, the first time delay relay 3 and the second time delay relay 4 are time delay relays with the same structure configuration, a wiring terminal bar 11 is arranged on the front surfaces of the first time delay relay 3 and the second time delay relay 4, the first time delay relay 3 and the second time delay relay 4 are connected in parallel, a spacing space is reserved between the adjacent surfaces of the first time delay relay 3 and the second time delay relay 4, a dial 7 is arranged on the upper portions of the first time delay relay 3 and the second time delay relay 4, a pointer 71 is fixedly arranged on the dial 7, annular scales 72 are arranged on the dial, an isolation transformer 9 is arranged on the two sides and the middle of the first time delay relay 3 and the second time delay relay 4, and three coupled iron cores 12 are arranged in the isolation transformer 9.

The encapsulation of time delay relay, by transparent face guard 1, shell 2 and base 5 are constituteed, wherein, shell 2 comprises for four boards around first time delay relay 3 and second time delay relay 4, it has transparent face guard 1 to connect on the shell 2, transparent face guard 1 is fixed in the upper portion of shell 2 through bolt or buckle, connect in base 5 under shell 2, shell 2 passes through mounting 51 to be connected on base 5, base 5 is the cuboid of platykurtic, four corners of base 5 are opened there are four through-holes.

A time delay relay plug-in unit including a first output terminal 61, the first output terminal 61 being connected to one end of an external manual closing button through a connection plug 65; a second output terminal 62 connected to the other end of the external manual closing button through a connection plug 65; the first power terminal 63 is connected to any one of the low-voltage side busbars of the external transformer through a wiring plug 65 and is supplied with power through alternating current 220V; a second power terminal 64 connected to a zero line of a low-voltage bus bar of the external transformer through a connection plug 65; the first output terminal 61, the second output terminal 62, the first power terminal 63 and the second power terminal 64 are fixedly connected through the connecting block 60; the third output terminal 101, the fourth output terminal 102, the fifth output terminal 103, and the sixth output terminal 104 are all located on one side of the inside of the housing 2, and are respectively communicated with the first output terminal 61, the second output terminal 62, the first power terminal 63, the second power terminal 64, and the connection block 60 on the side opposite to the outside of the housing 2.

Example two:

the difference between this embodiment and the first embodiment is:

in this embodiment, the housing 2 is made of a stainless steel plate, the thickness of the stainless steel plate is 1mm to 3mm, the fixing member 51 is a bolt, and the housing 2 is fixed to the base 5 through four bolts with the diameter of 6mm, so that electromagnetic interference can be shielded. Transparent face guard 1 adopts the pvc material, and thickness is between 1mm to 3mm, is convenient for observe the dial plate. The dial 7 is rotatable, the cover is transparent and the scale 72 indicates the time between 0 and 30S by 60 circular pits.

The setting delay time of the first delay relay 3 is less than that of the second delay relay 4, the difference between the setting delay time and the second delay relay is less than 2S, and the minimum setting time of the first delay relay 3 is more than 6S. When the transformer is powered off and power is restored again, the

power supply terminals

63 and 64 detect that the busbar on the low-voltage side of the transformer is electrified again, the closing device automatically starts to delay, after the delay of 6s to 30s, the closing device outputs a closing pulse with adjustable width through the

output terminals

61 and 62, the closing effect and a manual closing loop control the low-voltage main switch to automatically close, the process of simulating the manual button to be pressed to be connected and bouncing to be disconnected is performed, and the process is similar to the process that a worker presses the closing button on the spot.

Example three:

the difference between this embodiment and the first and second embodiments is:

in this embodiment, the thickness of base 5 is 3mm, and four corners of base 5 are opened has four through-holes that the diameter is 6mm, and the through-hole fixed connection is to outside low pressure master switch cabinet. The magnetic circuit yokes of the first time delay relay 3 and the second time delay relay 4 are inserted on the base 5, and the coil rack is directly contacted and positioned with the base 5, so that the whole structure of the time delay relay is more stable due to the design.

The first delay relay 3 and the second delay relay 4 each have eight terminal ends, wherein the live terminal is connected to the fifth output terminal 103, the neutral terminal is connected to the sixth output terminal 104, and the first power terminal 63 and the second power terminal 64 are connected to a 220V ac power supply. The terminal block 11 of the first delay relay 3 and the second delay relay 4 are connected through a 1.5mm2 copper-plastic wire. Thus, the first relay output terminal 61 and the second relay output terminal 62 are connected in series, and a common output is realized.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A time delay relay having interference immunity, comprising:

a first time delay relay (3) and a second time delay relay (4), wherein the first time delay relay (3) and the second time delay relay (4) are time delay relays with the same structure configuration, the front surfaces of the first time delay relay (3) and the second time delay relay (4) are respectively provided with a wiring terminal row (11), the first time delay relay (3) and the second time delay relay (4) are connected in parallel, a spacing space is reserved between the adjacent surfaces of the first time delay relay (3) and the second time delay relay (4), the upper parts of the first time delay relay (3) and the second time delay relay (4) are respectively provided with a dial plate (7), a pointer (71) is fixedly installed on the dial plate (7), the dial plate is provided with circumferential scales (72), and an isolation transformer (9) is arranged at the spacing positions of the two sides and the middle part of the first time delay relay (3) and the second time delay relay (4), a coupled iron core (12) is arranged in the isolation transformer (9);

the transparent mask (1), the shell (2) and the base (5) are packaged by a time delay relay, wherein the shell (2) is formed by four plates surrounding the first time delay relay (3) and the second time delay relay (4), the shell (2) is connected with the transparent mask (1), the transparent mask (1) is fixed on the upper portion of the shell (2) through bolts or buckles, the shell (2) is connected to the base (5) in a downward mode, the shell (2) is connected to the base (5) through a fixing piece (51), the base (5) is a flat cuboid, and four corners of the base (5) are provided with four through holes;

a first output terminal (61), the first output terminal (61) being connected to one end of an external manual closing button through a wiring plug (65); a second output terminal (62) connected to the other end of the external manual closing button through the connection plug (65); a first power terminal (63) which is connected to any one of the external transformer low-voltage side busbar through the wiring plug (65) and is powered by alternating current 220V; a second power terminal (64) connected to a zero line of a low-voltage side busbar of an external transformer through the connection plug (65); the first output terminal (61), the second output terminal (62), the first power supply terminal (63) and the second power supply terminal (64) are fixedly connected through a connecting block (60); the third output terminal (101), the fourth output terminal (102), the fifth output terminal (103) and the sixth output terminal (104) are all located on one side of the inside of the shell (2), and the first output terminal (61), the second output terminal (62), the first power supply terminal (63), the second power supply terminal (64) and the connecting block (60) on the side opposite to the outside of the shell (2) are communicated.

2. The time delay relay with anti-interference performance as claimed in claim 1, wherein: the shell (2) is made of stainless steel plates, the thickness of the shell ranges from 1mm to 3mm, the fixing piece (51) is a bolt, and the shell (2) is fixed on the base (5) through four bolts with the diameter of 6 mm.

3. The time delay relay with anti-interference performance as claimed in claim 1, wherein: the transparent mask (1) is made of pvc material, and the thickness of the transparent mask is 1 mm-3 mm.

4. The time delay relay with anti-interference performance as claimed in claim 1, wherein: the thickness of base (5) is 3mm, four corners of base (5) are opened has four diameters to be 6 mm's through-hole, through-hole fixed connection is to outside low pressure master switch cabinet.

5. The time delay relay with anti-interference performance as claimed in claim 1, wherein: the first time delay relay (3) and the second time delay relay (4) are provided with eight terminal ends, wherein a live wire terminal is connected to the fifth output terminal (103), a zero wire terminal is connected to the sixth output terminal (104), and the first power supply terminal (63) and the second power supply terminal (64) are connected to a 220V alternating current power supply.

6. The time delay relay with anti-interference performance as claimed in claim 5, wherein: the wiring terminals of the first time delay relay (3) and the second time delay relay (4)Row (11) passing 1.5mm²The copper plastic wires are connected.

7. The time delay relay with anti-interference performance as claimed in claim 1, wherein: the dial (7) is rotatable, the dial cover is transparent, the scales (72) indicate time between 0 and 30S through 60 circular concave points, setting delay time of the first delay relay (3) is smaller than that of the second delay relay (4), the difference between the setting delay time and the setting delay time is smaller than 2S, and the minimum setting time of the first delay relay (3) is larger than 6S.

8. The time delay relay with anti-interference performance as claimed in claim 1, wherein: the magnetic circuit yokes of the first time delay relay (3) and the second time delay relay (4) are inserted on the base (5), and the coil rack is directly contacted and positioned with the base (5).