CN111092000A - Terminal assembly without dismounting and relay provided with terminal assembly without dismounting - Google Patents
Terminal assembly without dismounting and relay provided with terminal assembly without dismounting Download PDFInfo
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- CN111092000A CN111092000A CN201911316967.XA CN201911316967A CN111092000A CN 111092000 A CN111092000 A CN 111092000A CN 201911316967 A CN201911316967 A CN 201911316967A CN 111092000 A CN111092000 A CN 111092000A
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- relay
- terminal assembly
- terminal
- connecting portion
- conductor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/14—Terminal arrangements
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- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The invention provides a disassembly-free terminal assembly and a relay provided with the disassembly-free terminal assembly, and relates to the field of power equipment, wherein the disassembly-free terminal assembly is provided with a test terminal, and comprises a first insulating shell and a first conductor arranged in the first insulating shell, wherein the first conductor is provided with a relay connecting part and a first connecting part which are used for being electrically connected with the relay; the conventional terminal includes a second insulating housing and a second conductive body mounted in the second insulating housing, the second conductive body having a circuit connection portion for electrical connection with an external circuit and a second connection portion; the first insulating shell and the second insulating shell are detachably connected through a connecting piece, and the first connecting portion and the second connecting portion are mutually abutted. The disassembly-free terminal assembly and the relay provided with the disassembly-free terminal can verify the relay on the premise of not disassembling the wiring type relay wiring.
Description
Technical Field
The invention relates to the field of power equipment, in particular to a disassembly-free terminal assembly and a relay provided with the disassembly-free terminal assembly.
Background
A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) meets a predetermined requirement. It is usually applied to automatic control circuit, and it is an "automatic switch" which uses small current to control large current operation, and plays the role of automatic regulation, safety protection, switching circuit, etc. in the circuit.
The relays need to be periodically checked to ensure the normal operation of the automation control circuit. The verification items, periods and acceptance criteria of the relay of the automatic safety protection and power grid device are specified according to all and part of verification items of various functional relays in appendix A in DL 995 plus 2006 inspection regulations of automatic safety protection and power grid devices. In the operation and maintenance work of the field protection and power grid safety automatic device, the calibration work of the relay must be completed according to the regulation requirement.
The relay is divided into a pluggable relay and a wiring type non-pluggable relay, the pluggable relay is convenient to check, a test wire does not need to be disassembled or connected, damage to a relay terminal is small, but due to the characteristics of the pluggable relay, the reliability is not high, the limited situation of application occasions is large, and the pluggable relay is not suitable for application in many occasions. The wiring type non-pluggable relay is high in reliability and using frequency in an important loop, but the wiring type non-pluggable relay needs to be disassembled and wired in verification, damage to terminals is large, and the risk of mis-wiring is large when the relay is recovered after verification.
In view of the above, the present inventors have designed a terminal assembly without being removed and a relay having the terminal assembly without being removed through repeated experiments according to the production and design experience of the field and the related field for many years, so as to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a disassembly-free terminal assembly and a relay provided with the disassembly-free terminal assembly, which can be used for verifying the relay on the premise of not disassembling a wiring type relay wiring.
In order to achieve the above object, the present invention provides a removal-free terminal assembly, wherein the removal-free terminal assembly includes:
the test terminal comprises a first insulating shell and a first conductor arranged in the first insulating shell, wherein the first conductor is provided with a relay connecting part and a first connecting part which are used for being electrically connected with the relay;
a conventional terminal including a second insulating housing and a second conductive body mounted in the second insulating housing, the second conductive body having a circuit connection portion for electrical connection with an external circuit and a second connection portion;
the first insulating shell and the second insulating shell are detachably connected through a connecting piece, and the first connecting portion and the second connecting portion are mutually abutted.
The removal-free terminal assembly as described above, wherein the relay connecting portion has a rod shape and protrudes outside the first insulating housing.
The removal-free terminal assembly as described above, wherein the first connecting portion is rod-shaped and extends out of the first insulating housing.
The disassembly-free terminal assembly is characterized in that the second connecting part is in a rod shape, extends out of the second insulating shell and can abut against the first connecting part.
The disassembly-free terminal assembly is characterized in that the abutting surface between the first connecting part and the second connecting part is an inclined surface.
The disassembly-free terminal assembly as described above, wherein the connecting member is an annular fixing ring, and the fixing ring is sleeved outside the test terminal and the conventional terminal to fix the conventional terminal on the test terminal.
The removal-free terminal assembly as described above, wherein the fixing ring is an elastic fixing ring.
The removal-free terminal assembly as described above, wherein the removal-free terminal assembly further includes a connection terminal, the connection terminal includes a third insulating housing and a third conductor installed in the third insulating housing, the third insulating housing and the second insulating housing are fixedly connected, and the third conductor is connected in series between the second connection portion and the external circuit.
The terminal assembly without removing, as mentioned above, wherein the second insulating housing is provided with a connection port, the third conductor extends out of the third insulating housing, and the third conductor is inserted into the second insulating housing through the connection port and is connected to the second connection portion.
The present invention also provides a relay mounted with a removal-free terminal assembly, wherein the relay is mounted with the removal-free terminal assembly as described above, the relay has a port for electrical connection, and the relay connecting portion is inserted into the first insulating housing and inserted into the port.
Compared with the prior art, the invention has the following characteristics and advantages:
the disassembly-free terminal assembly and the relay provided with the disassembly-free terminal assembly can be used for verifying the relay on the premise of not disassembling the relay and an external loop connecting wire (terminal connecting wire).
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case.
Fig. 1 is a schematic structural view of a terminal assembly without removal according to the present invention;
FIG. 2 is a schematic diagram of a relay in a normal operation on site;
fig. 3 is a schematic diagram of a field during relay verification.
Description of reference numerals:
100. a terminal assembly is not required to be disassembled; 200. A relay;
10. a test terminal; 11. A first insulating housing;
12. a relay connection part; 13. A first connection portion;
20. a conventional terminal; 21. A second insulating housing;
22. a second connecting portion; 30. A connecting member;
40. a connection terminal; 41. A third insulating housing;
42. a third connecting portion; 210. A port.
Detailed Description
The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of illustration only and are not to be construed as limiting the invention in any way. Any possible variations based on the present invention may be conceived by the skilled person in the light of the teachings of the present invention, and these should be considered to fall within the scope of the present invention.
As shown in fig. 1 to 3, the present invention proposes a removal-free terminal assembly 100 and a relay 200 mounted with the removal-free terminal assembly.
The removal-free terminal assembly 100 has a test terminal 10 and a regular terminal 20, the test terminal 10 includes a first insulating housing 11 and a first conductor installed in the first insulating housing 11, the first conductor having a relay connecting portion 12 and a first connecting portion 13 for electrically connecting with the relay 200; the conventional terminal 20 includes a second insulating housing 21 and a second conductive body mounted in the second insulating housing, the second conductive body having a circuit connection portion for electrical connection with an external circuit and a second connection portion 22; the first insulating housing 11 and the second insulating housing 21 are detachably connected by a connecting member 30, and the first connecting portion 13 and the second connecting portion 22 abut against each other.
The present invention also proposes a relay 200 mounted with a removal-free terminal assembly, the relay 200 being mounted with the removal-free terminal assembly 100 as described above, specifically, the relay 200 having a port 210 for electrical connection, the relay connecting portion 12 of the test terminal 10 protruding out of the first insulating housing 11 and being inserted in the port 210.
The removal-free terminal assembly 100 and the relay 200 with the removal-free terminal assembly can verify the relay without removing the wiring (terminal wiring) between the relay and an external circuit. Specifically, during normal operation, the relay connecting portion 1 is inserted into the port 210, the second insulating housing 21 is fixed to the first insulating housing 11, the first connecting portion 13 and the second connecting portion 22 are abutted against each other, and the circuit connecting portion is electrically connected to the external circuit, that is, the relay 200 is electrically connected to the external circuit through the first conductor and the second conductor, or the relay 200 is reliably connected to the external circuit through the removal-free terminal assembly 100, so as to ensure the normal operation of the relay control external circuit; during verification, the second insulating shell 21 is detached from the first insulating shell 11, and the second connecting portion 22 is separated from the first connecting portion 13, so that the relay and the control circuit can be reliably disconnected, and the fact that the external circuit is not affected by the verification of the relay is guaranteed.
The disassembly-free terminal assembly 100 and the relay 200 provided with the disassembly-free terminal assembly are simple in structure, economical, practical, and convenient and reliable to install.
In the present invention, the first insulating housing 11 and the second insulating housing 21 mainly perform the insulating and protecting functions, can be made of soft resin material, and can withstand insulation up to 1000V. Of course, if the relay 200 is a special relay, the verification requires a higher voltage level, and the relay can be customized specifically, or the first insulating housing 11 and the second insulating housing 21 can be made of materials with higher insulating strength.
In the invention, the test terminal 10 is a terminal used in the calibration of the relay 200, the test terminal 10 is reliably connected with a connecting conductor and a connecting part in the relay 200 through the relay connecting part 12, all instruments in the calibration of the relay 200 are connected to the first connecting part 13 of the test terminal 10, the test terminal 10 is a vulnerable part and can be replaced, and the use of the whole disassembly-free terminal assembly 100 is not influenced after the replacement; the regular terminal 20 should be connected to an external circuit, and the first connection portion 13 of the test terminal 10 and the second connection portion 22 of the regular terminal 20 are reliably connected to each other and have equal potential.
In an alternative example of the present invention, the relay connecting portion 12 has a rod shape and protrudes outside the first insulating housing 11. Thus, the relay connector 12 can be inserted into the port 210 of the relay 200, and the test terminal 10 and the relay 200 can be electrically connected.
In the present invention, the port 210 of the relay 200 may be in the form of a port of a conventional relay, and the specific structure of the relay connection portion may be 2.5mm2An inline terminal conductor structure; if the relay 200 needs a special interface for a special relay, the structure of the relay connecting part 12 can be changed into a structure correspondingly matched with the special interface, and other structures do not need to be changed.
In an alternative example of the present invention, the first connecting portion 13 has a rod shape and protrudes outside the first insulating housing 11.
In an alternative example of the present invention, the second connecting portion 22 is rod-shaped, and the second connecting portion 22 extends out of the second insulating housing 21 and can abut against the first connecting portion 13.
In an alternative example of the present invention, the abutting surface between the first connecting portion 13 and the second connecting portion 22 is an inclined surface, so that the contact area between the first connecting portion 13 and the second connecting portion 22 can be increased, the contact resistance can be reduced, and the voltage drop and loss on the terminal can be reduced.
In the present invention, the relay connection portion 12, the first connection portion 13, and the second connection portion 22 may be made of copper conductors.
In an alternative embodiment of the present invention, the connecting member 30 is an annular fixing ring, which is disposed outside the first insulating housing 11 and the second insulating housing 21 to fix the second insulating housing 21 to the first insulating housing 11.
In an alternative example of the present invention, the retainer ring is a resilient retainer ring.
In an alternative example, the fixing ring is a spring ring, which can utilize the mechanical characteristics of the spring to tie the first insulating housing 11 and the second insulating housing tightly and provide a certain pressing force between the first connecting portion 13 and the second connecting portion 22, thereby ensuring a reliable connection between the test terminal 10 and the regular terminal 20 when the relay 200 is in normal operation.
In an alternative example of the present invention, the removal-free terminal assembly 100 further includes a connection terminal 40, the connection terminal 40 includes a third insulating housing 41 and a third conductor installed in the third insulating housing 41, the third insulating housing 41 and the second insulating housing 21 are fixedly connected, and the third conductor is connected in series between the second connection portion and an external circuit (not shown in the figure). After the connecting terminal 40 and the regular terminal 20 are electrically connected, an equal potential is formed, according to the field requirement of the relay 200, the regular terminal 20 can be connected in series with one connecting terminal 40, and the number of the connecting terminals 40 connected in series on the regular terminal 20 can be increased according to the requirement if special requirements exist.
In an alternative example of the present invention, the second insulating housing 21 is provided with a connection port, and the third conductor protrudes out of the third insulating housing 21, and the third conductor is inserted into the second insulating housing 21 through the connection port and is connected to the second connection portion.
Referring to fig. 1 to fig. 3, a detailed operation process of the terminal assembly 100 and the relay 200 with the terminal assembly will be described in detail with reference to the following embodiments:
in this embodiment, the relay 200 is used to control the circuitry of the protection and safety automation device. When the relay connector is used on site, the relay connector 12 needs to be inserted into the port 210 of the relay 200, and the relay bolt is screwed down by a screwdriver, so that the relay connector 12 is prevented from falling off (the port 210, the relay connector 12 and the bolt can all adopt the prior art, and the description is omitted here). An external circuit (a circuit of a protection and safety robot) is wired into the conventional terminal 20 to be electrically connected to the circuit connection portion, and a bolt is tightened with a screwdriver to prevent the boundary of the external circuit from falling. At this time, the first connection portion 13 is exposed outside the first insulating case 11, the second connection portion 22 is exposed outside the second insulating case 21, and other portions are located inside the first insulating case 11, the second insulating case 21, or the relay 200.
In normal operation, as shown in fig. 2, the test terminal 10 is securely connected to the conventional terminal 20, and specifically, the first insulating housing 11 and the second insulating housing 21 are bound together by the connecting member 30, and the first connecting portion 13 and the second connecting portion 22 abut against each other and are firmly fixed together. When the relay is turned on, the external circuit line is electrically connected to the relay 200 via the normal terminal 20 and the test terminal 10, and the operation result is equivalent to directly connecting the external circuit to the relay node.
When the relay is checked, as shown in fig. 3, the connecting piece 30 is firstly opened, then the conventional terminal 20 and the external circuit connection wire connected with the conventional terminal 20 are disconnected from the test terminal 10, and the external circuit connection wire on the conventional terminal 20 does not need to be removed, so that the relay and the external circuit can be reliably disconnected. Finally, the calibration test wire is connected to the first connecting portion 13 of the test terminal 10, and the calibration work of the relay is completed. In the whole verification process, the connection between the relay 200 and the external loop is not removed.
The present invention is not limited to the above embodiments, and in particular, various features described in different embodiments can be arbitrarily combined with each other to form other embodiments, and the features are understood to be applicable to any embodiment except the explicitly opposite descriptions, and are not limited to the described embodiments.
Claims (10)
1. A removal-free terminal assembly, said removal-free terminal assembly comprising:
the test terminal comprises a first insulating shell and a first conductor arranged in the first insulating shell, wherein the first conductor is provided with a relay connecting part and a first connecting part which are used for being electrically connected with the relay;
a conventional terminal including a second insulating housing and a second conductive body mounted in the second insulating housing, the second conductive body having a circuit connection portion for electrical connection with an external circuit and a second connection portion;
the first insulating shell and the second insulating shell are detachably connected through a connecting piece, and the first connecting portion and the second connecting portion are mutually abutted.
2. The terminal assembly of claim 1, wherein said relay connection portion is rod-shaped and extends outside of said first insulative housing.
3. The non-removable terminal assembly according to claim 1, wherein said first connecting portion is rod-shaped and extends outside of said first insulative housing.
4. The terminal assembly of claim 3, wherein said second connecting portion is rod-shaped, said second connecting portion extending outside said second insulative housing and being capable of abutting against said first connecting portion.
5. The terminal assembly of claim 4, wherein the abutment surface between the first and second connection portions is a ramp.
6. The terminal assembly of claim 1, wherein said connector is an annular retainer ring, said retainer ring being disposed over said test terminal and said conventional terminal to retain said conventional terminal to said test terminal.
7. The non-removable terminal assembly according to claim 6, wherein said retainer ring is a resilient retainer ring.
8. The tamper-free terminal assembly of claim 1, further comprising a connection terminal including a third insulative housing and a third conductor mounted within the third insulative housing, the third insulative housing and the second insulative housing being fixedly connected, the third conductor being connected in series between the second connecting portion and the external circuit.
9. The terminal assembly of claim 8, wherein said second insulative housing defines a connection port, said third conductor extends through said third insulative housing, and said third conductor is inserted into said second insulative housing through said connection port and connected to said second connecting portion.
10. A relay mounted with a removal-free terminal assembly, characterized in that the relay is mounted with a removal-free terminal assembly as recited in any one of claims 1 to 9, the relay having a port for electrical connection, the relay connecting portion protruding into the first insulating housing and being inserted into the port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911316967.XA CN111092000A (en) | 2019-12-19 | 2019-12-19 | Terminal assembly without dismounting and relay provided with terminal assembly without dismounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911316967.XA CN111092000A (en) | 2019-12-19 | 2019-12-19 | Terminal assembly without dismounting and relay provided with terminal assembly without dismounting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111092000A true CN111092000A (en) | 2020-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911316967.XA Pending CN111092000A (en) | 2019-12-19 | 2019-12-19 | Terminal assembly without dismounting and relay provided with terminal assembly without dismounting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111092000A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201314921Y (en) * | 2008-11-13 | 2009-09-23 | 保定供电公司 | Socket box used for relay testing |
| CN201682150U (en) * | 2009-12-10 | 2010-12-22 | 河南省电力公司商丘供电公司 | Special plug for wiring in test without detachment |
| CN103630831A (en) * | 2012-08-29 | 2014-03-12 | 上海宝钢工业技术服务有限公司 | Verification system of grounding direction protective relay |
| JP2014191881A (en) * | 2013-03-26 | 2014-10-06 | Hirose Electric Co Ltd | Electrical connection device |
| CN204008717U (en) * | 2014-07-10 | 2014-12-10 | 国家电网公司 | A kind of relay protection experimental fast-wiring conversion equipment |
| CN204103199U (en) * | 2014-09-05 | 2015-01-14 | 国家电网公司 | Short-circuited terminal and short-circuited terminal row |
| CN104991092A (en) * | 2015-06-16 | 2015-10-21 | 国网山东昌乐县供电公司 | Secondary protection test terminal row adaptor |
| CN106526248A (en) * | 2016-11-22 | 2017-03-22 | 国网浙江省电力公司绍兴供电公司 | Integrated safety measure test junction box and use method |
| CN209327405U (en) * | 2018-12-29 | 2019-08-30 | 云南电网有限责任公司电力科学研究院 | A relay protection secondary circuit maintenance terminal |
| CN211350488U (en) * | 2019-12-19 | 2020-08-25 | 国家电网有限公司 | Terminal assembly without dismounting and relay provided with terminal assembly without dismounting |
-
2019
- 2019-12-19 CN CN201911316967.XA patent/CN111092000A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201314921Y (en) * | 2008-11-13 | 2009-09-23 | 保定供电公司 | Socket box used for relay testing |
| CN201682150U (en) * | 2009-12-10 | 2010-12-22 | 河南省电力公司商丘供电公司 | Special plug for wiring in test without detachment |
| CN103630831A (en) * | 2012-08-29 | 2014-03-12 | 上海宝钢工业技术服务有限公司 | Verification system of grounding direction protective relay |
| JP2014191881A (en) * | 2013-03-26 | 2014-10-06 | Hirose Electric Co Ltd | Electrical connection device |
| CN204008717U (en) * | 2014-07-10 | 2014-12-10 | 国家电网公司 | A kind of relay protection experimental fast-wiring conversion equipment |
| CN204103199U (en) * | 2014-09-05 | 2015-01-14 | 国家电网公司 | Short-circuited terminal and short-circuited terminal row |
| CN104991092A (en) * | 2015-06-16 | 2015-10-21 | 国网山东昌乐县供电公司 | Secondary protection test terminal row adaptor |
| CN106526248A (en) * | 2016-11-22 | 2017-03-22 | 国网浙江省电力公司绍兴供电公司 | Integrated safety measure test junction box and use method |
| CN209327405U (en) * | 2018-12-29 | 2019-08-30 | 云南电网有限责任公司电力科学研究院 | A relay protection secondary circuit maintenance terminal |
| CN211350488U (en) * | 2019-12-19 | 2020-08-25 | 国家电网有限公司 | Terminal assembly without dismounting and relay provided with terminal assembly without dismounting |
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Application publication date: 20200501 |