CN207502678U - Detect the device of contactor mirror image contact - Google Patents
Detect the device of contactor mirror image contact Download PDFInfo
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- CN207502678U CN207502678U CN201721166825.6U CN201721166825U CN207502678U CN 207502678 U CN207502678 U CN 207502678U CN 201721166825 U CN201721166825 U CN 201721166825U CN 207502678 U CN207502678 U CN 207502678U
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Abstract
A kind of device for detecting contactor mirror image contact, driving device including the moving component movement for driving contactor, the detection power supply to form main contact measure loop and auxiliary contact measure loop is connect with the main contact of contactor and auxiliary contact respectively, show that main contact is closed the signal indicating device of breaking signal with auxiliary contact and measures the measuring element of moving component movement travel respectively, signal indicating device includes being arranged on the main contact signal indicating device for being used to indicate main contact contact closure in main contact measure loop and is arranged on the auxiliary contact signal indicating device that auxiliary contact contact closure is used in auxiliary contact measure loop；Measuring element connect the distance for measuring moving component movement with moving component, main noddle on contactor includes at least one set of moving contact and static contact being oppositely arranged, auxiliary contact includes auxiliary moving contact and auxiliary static contact, and moving contact and auxiliary moving contact are mounted on moving component.The utility model also provides a kind of method for detecting contactor mirror image contact.
Description
Technical field
The utility model is related to low-voltage electrical apparatus detection field, more particularly to a kind of method for detecting contactor mirror image contact and
Device.
Background technology
With the development of industrial control technology, in circuit for controlling motor, contactor is reliably detected by mirror image contact
State, more and more wider using the application as safety precautions, the auxiliary contact of more and more user demand contactors need to expire
The requirement of sufficient mirror image contact.
It is provided according to GB/T 14048.4-2010 annex F：
The definition of mirror image contact is：" under the conditions of F.7 defined, it is impossible in the close position simultaneously with connecting main contact
Disjunction auxiliary contact "；
The detection of mirror image contact is tested：" the 9th chapter is applicable in, and supplements following requirement.Experiment should according to F.7.2 and
F.7.3 it carries out "；
F.7.2 test requirements document includes：
It " should be tested under the conditions of clean on new product.Test procedure is as follows：
A) melting welding occurs in order to simulate a main electrode, it should which a main contact is maintained at closed position, such as can lead to
Cross welding or the mode pasted each contact is connected together (for example, for double break contact, can be by welding by two contacts
It is welded together).Welding or the thickness pasted should not make the distance between contact that significant changes, and used method occur
It should illustrate in test report.
B1) coil without it is electrically operated when, it should apply impact test voltage at mirror image contact both ends, be at sea level
F.1,2.5kV (is modified, F.1 table is to calculate gained according to table in GB14048.1-2006 12) according to following table.Should not have broken
Bad property is discharged.
B2) as b1) alternative, when coil without it is electrically operated when, it should by direct method measure contact between
Air gap；Air gap should be more than 0.5mm.If there is two or more contact air gaps, then contact air gap and should be more than
0.5mm。”
Method is recommended according to the detection of GB/T 14048.4-2010, contact is used to what is welded or paste on new product
Mode connects together, and inevitably generates damage to product contact, cause product can not normal use again, cause the wave of resource
Take；Meanwhile when being operated by the alternative of b2, because product contact is all in interiors of products, the surrounding of contact, which exists for realizing, goes out
The part or structure of the functions such as arc, insulation, therefore the air gap operation that most of product is directly measured between contact is more difficult；In addition, for
It is required that contact air gap be more than 0.5mm, when being fluctuated such as fruit product individual part size, the size of gaps may be influenced,
It can not efficiently monitor whether bulk article meets the requirements using method measured directly.
Invention content
A kind of easy to detect quick, the testing result the purpose of the utility model is to overcome the defects of the prior art, providing
Accurately, the method and apparatus of contactor mirror image contact simple in structure.
To achieve the above object, the utility model employs following technical solution：
A kind of device for detecting contactor mirror image contact, the driving device that the moving component 2 including driving contactor moves
1, the inspection to form main contact measure loop and auxiliary contact measure loop is connect with the main contact of contactor and auxiliary contact respectively
Power supply is surveyed, shows that main contact is closed the signal indicating device 5 of breaking signal and measures moving component 2 with auxiliary contact respectively and moves
The measuring element of stroke, signal indicating device 5 include being arranged in main contact measure loop being used to indicate main contact contact closure
Main contact signal indicating device 51 and being arranged in auxiliary contact measure loop touched for the auxiliary of auxiliary contact contact closure
Head signal indicating device 52；Measuring element is connect with moving component 2 measures the distance that moving component 2 moves, and the master of contactor touches
Head includes at least one set of moving contact 31 being oppositely arranged and static contact 41, and auxiliary contact includes auxiliary moving contact 32 and auxiliary stationary contact
First 42, moving contact 31 and auxiliary moving contact 32 are mounted on moving component 2.
Further, control unit is further included, control unit is connect with measuring element, control unit and main contact measure loop
It is connected with auxiliary contact measure loop, control unit obtains first according to the signal of auxiliary contact measure loop by measuring element
Distance value a, control unit obtain second distance value b, control unit according to the signal of main contact measure loop by measuring element
Judge the sequential of the signal of auxiliary contact measure loop and the signal of main contact measure loop, and calculate second distance value b and the
The difference of one distance value a exports testing result.
Further, the positioning device for fixed contact is further included.
Further, the driving device 1 is electric drive or manual actuation.
Further, the driving device 1 includes stretching out the connector of contactor case top with the moving component 2 of contactor
The connector of 21 connections, the motion thread bar being connect with connector and the motor being connect with motion thread bar.
Further, the signal indicating device is signal lamp.
Further, the measuring element is dial gauge.
Further, the main contact of the contactor includes multigroup moving contact 31 being oppositely arranged and static contact 41, Duo Zudong
It connects again after 41 parallel connection of contact 31 and static contact main contact signal indicating device 51, auxiliary contact refers to auxiliary contact signal
Showing device 52 is in parallel.
Further, the driving device 1 is located at the surface of moving component 2；Moving contact 31 is located at the upper of static contact 41
Side, auxiliary moving contact 32 are located at the lower section of auxiliary static contact 42.
A kind of method of device detection contactor mirror image contact using above-mentioned detection contactor mirror image contact, including under
Row step：
Step 1：The moving contact 31 of the main contact of contactor and static contact 41 are connect to form main contact inspection with detection power supply
The auxiliary moving contact 32 of auxiliary contact and auxiliary static contact 42 are connect to form auxiliary contact and detect back with detecting power supply by survey time road
Road；
Step 2：Measuring element starts to measure, and 1 drive motion components 2 of driving device act, auxiliary contact signal designation dress
When putting 52 instructions auxiliary moving contact 32 and auxiliary 42 disjunction of static contact, the first distance value a is recorded, moving component 2 continues to act, main
When contact signal indicating device 51 indicates that any group of moving contact 31 and static contact 41 are closed, second distance value b is recorded；
Step 3：Calculate the difference of second distance value b and the first distance value a.
Further, auxiliary contact signal indicating device 52 first indicates auxiliary contact disjunction, main contact signal indicating device 51
Instruction main contact is closed afterwards, and when second distance value b and the first distance value a differences calculated is more than threshold value, product qualification；Instead
It, product is unqualified.
The utility model is referred to by the working condition of driving device driving device drive motion components simulating contact device, signal
Showing device is used to indicate the connection closed state of main contact and auxiliary contact, measuring element according to the instruction of signal indicating device come
The electric clearance for obtaining main contact is measured, signal indicating device and measuring element mutual cooperation can complete the inspection to mirror image contact
It surveys, detection method is simple, and detection is accurate.Signal indicating device is signal lamp.Measuring element is dial gauge.The utility model also carries
A kind of method for detecting contactor mirror image contact is supplied
Description of the drawings
Fig. 1 is the structure diagram of the device of the utility model detection contactor mirror image contact；
Fig. 2 is the structure diagram of the utility model contactor to be detected；
Fig. 3 is the circuit diagram of the utility model main contact terminal circuit；
Fig. 4 is the circuit diagram in the utility model auxiliary contact circuit；
Fig. 5 is the flow chart of the utility model detection mirror image contact.
Specific embodiment
Below in conjunction with the embodiment that attached drawing 1 to 5 provides, the detection contactor mirror image contact of the utility model is further illustrated
Method and apparatus specific embodiment.The method and apparatus of the detection contactor mirror image contact of the utility model be not limited to
The description of lower embodiment.
As shown in Figs. 1-5, the device of the utility model detection contactor mirror image contact, the movement portion including driving contactor
The driving device 1 that part 2 moves, connect to form main contact measure loop and auxiliary with the main contact of contactor and auxiliary contact respectively
The detection power supply of contact measure loop, show respectively main contact and auxiliary contact be closed breaking signal signal indicating device 5 and
The measuring element of 2 movement travel of moving component is measured, signal indicating device 5 includes being arranged in main contact measure loop to refer to
Show the main contact signal indicating device 51 of main contact contact closure and be arranged in auxiliary contact measure loop and be used for auxiliary contact
The auxiliary contact signal indicating device 52 of contact closure；Measuring element connect with moving component 2 measure moving component 2 move away from
From the main contact of contactor includes at least one set of moving contact 31 being oppositely arranged and static contact 41, and it is dynamic that auxiliary contact includes auxiliary
Contact 32 and auxiliary static contact 42, moving contact 31 and auxiliary moving contact 32 are mounted on moving component 2.The utility model passes through drive
The working condition of dynamic device driving device drive motion components simulating contact device, signal indicating device are used to indicate main contact and auxiliary
The closure disjunction state of contact is helped, the electrical of main contact is obtained to measure by measuring element according to the instruction of signal indicating device
Gap, signal indicating device and measuring element mutual cooperation can complete the detection to mirror image contact, and detection method is simple, and detection is accurate
Really.
The detection method of the detection contactor mirror image contact of the utility model, includes the following steps：
Step 1：The moving contact 31 of the main contact of contactor and static contact 41 are connect to form main contact inspection with detection power supply
The auxiliary moving contact 32 of auxiliary contact and auxiliary static contact 42 are connect to form auxiliary contact and detect back with detecting power supply by survey time road
Road；
Step 2：Measuring element starts to measure, and 1 drive motion components 2 of driving device act, auxiliary contact signal designation dress
When putting 52 instructions auxiliary moving contact 32 and auxiliary 42 disjunction of static contact, the first distance value a is recorded, moving component 2 continues to act,
When main contact signal indicating device 51 indicates that any group of moving contact 31 and static contact 41 are closed, second distance value b is recorded；
Step 3：Calculate the difference of second distance value b and the first distance value a.Auxiliary contact signal indicating device 52 first refers to
Show auxiliary contact disjunction, instruction main contact is closed after main contact signal indicating device 51, and calculate second distance value b and first away from
When difference (main contact electric clearance) from value a is more than threshold value 0.5mm, product is qualified；Conversely, product is unqualified.
The utility model indicates the closure disjunction state of main contact and auxiliary contact by signal indicating device, refers in signal
The stroke of moving component is measured when showing device indicates by measuring element to calculate electric clearance, detection method is simply accurate.Meter
Amount element can be directly connected to measure its movement travel with moving component 2, can also be connect with driving device 1, measure movement indirectly
The stroke of component 2.
The utility model further includes the positioning device for fixed contact.The driving device 1 for electric drive or
Manual actuation.The difference of first distance value a and second distance value b, auxiliary contact signal indicating device 52 and main contact signal refer to
The instruction sequencing of showing device 51 and can also be by manually judging or using other logical-arithmetic units.
As shown in Figs 1-4, contactor has three-phase main contact and a phase disjunction auxiliary contact, and main contact is by 31 He of moving contact
Static contact 41 forms, and auxiliary contact is made of auxiliary moving contact 32 and auxiliary static contact 42, moving contact 31 and auxiliary moving contact 32
Moving component, that is, contact mounted on contact bridge supports on 2 that static contact 41 and auxiliary static contact 42 are mounted on contactor housing
On, contact supports that 2 can be by the action of external driver device 1, and the moving contact 31 with dynamic main contac is leaned on to 41 direction of static contact
Closely, it is closed, the auxiliary moving contact 32 of auxiliary contact is driven to be disconnected far from auxiliary static contact 42；The main contact and auxiliary of contactor
Contact is connected in respectively in diagram signal circuit：It connects again after three-phase main contact parallel connection main contact signal indicating device 51,
It connects again main contact signal indicating device 51 after group 41 parallel connection of moving contact 31 and static contact, auxiliary contact parallel connection auxiliary contact
Signal indicating device 52.Certainly, the auxiliary contact can be that contactor ontology carries or external installation.
As shown in Figure 1, specifically, the driving device 1 is located at the surface of moving component 2；Moving contact 31 is located at stationary contact
First 41 top, auxiliary moving contact 32 are located at the lower section of auxiliary static contact 42.The signal indicating device is signal lamp, can also
It is that other have other devices of similar signal instruction function, such as instrument, honey device.The measuring element is dial gauge, also may be used
With using the device and composite module that there is logical operation, measure, such as sensor.
The driving device 1 is electric drive or manual actuation.The utility model provides specifically one embodiment, institute
It states driving device 1 and includes the connector for stretching out the connector 21 of contactor case top with the moving component 2 of contactor and connecting, with
The motion thread bar of connector connection and the motor being connect with motion thread bar.Certainly, motion thread bar can also connect one
A hand disk is rotated by hand drive threaded rod, and drive motion components 2 move.During detection, without opening contactor, drive
The connector of device 1 and the connector 21 of the stretching contactor case top of moving component 2 are attached and directly drive moving component 2
(i.e. the contact of contactor is supported).In addition, measuring element can be connect with the connector 21 of moving component 2 carries out stroke measurment.
When driving device 1 is manual actuation, original state, auxiliary moving contact 32 and auxiliary static contact 42 are closed, and are driven manually
Dynamic moving component 2 acts, when the instruction auxiliary moving contact 32 of indicator light 52 is with 42 disjunction of static contact is assisted, pause motion component 2,
The first distance value a is read from dial gauge；Continue drive motion components 2, indicator light 51 indicates any group of moving contact 31 and static contact
During 41 closure, pause motion component 2 reads second distance value b from dial gauge.
When driving device 1 is automatic driving, the utility model provides a kind of the excellent of device for detecting contactor mirror image contact
Embodiment is selected, including control unit, control unit is connect with measuring element, and control unit is touched with main contact measure loop and auxiliary
Head measure loop connection, control unit obtain the first distance value a according to the signal of auxiliary contact measure loop by measuring element,
Control unit obtains second distance value b, control unit judgement auxiliary according to the signal of main contact measure loop by measuring element
The sequential of the signal of contact measure loop and the signal of main contact measure loop, and calculate second distance value b and the first distance value a
Difference, export testing result.Main contact measure loop and auxiliary contact measure loop connect input instruction letter with control unit
Number, original state, auxiliary moving contact 32 and auxiliary static contact 42 are closed, and control unit starts motor drive motion components 2 and acts,
When auxiliary contact signal indicating device 52 indicates auxiliary moving contact 32 and auxiliary 42 disjunction of static contact, control unit is from dial gauge
Read the first distance value a；When main contact signal indicating device 51 indicates that any group of moving contact 31 and static contact 41 are closed, control
Unit reads second distance value b from dial gauge, control unit receive the signal of 52 disjunction of auxiliary contact signal indicating device earlier than
The closure signal of main contact signal indicating device 51, and when second distance value b and the first distance value a differences are more than threshold value 0.5mm
Product is qualified；Conversely, product is unqualified.
The device of the detection contactor mirror image contact of the utility model further includes mounting bracket, and the station platform of mounting bracket is equipped with
The positioning device of fixed contact, positioning device include fixed plate and movable plate, and movable plate is by the sliding rail on station platform and admittedly
Fixed board cooperation accommodates contactor, and movable plate is connect with elastic component or movable plate is connect with accommodating cylinder.In the upper of positioning device
Side is equipped with driving device 1 and the measuring element being connect with driving device 1, and the driving device 1 includes the movement portion with contactor
The connector that part 2 connects, the motion thread bar being connect with connector and the motor being connect with motion thread bar, measuring element
It is connect with motion thread bar.Control panel is equipped in the side of workbench, control panel is equipped with start button and signal refers to
The indicator light of showing device 5 is additionally provided with the detection lamp of instruction testing result, detection power supply and control unit is equipped in workbench.Control
Unit processed connect acquisition with measuring element and obtains measured value；Control unit connect control driving device 1 with the motor of driving device 1
Drive moving component action；Control unit connect with main contact measure loop, auxiliary contact measure loop obtain main contact be closed,
The signal of auxiliary contact disjunction, control unit can also be by being connected in main contact measure loop, auxiliary contact measure loop
Main contact signal indicating device 51, auxiliary contact signal indicating device 52 obtain signal；Control unit and instruction testing result
Detection lamp connection be used to indicate test result.Main contact measure loop is equipped with to be connected with the moving contact 31 and static contact 41 of main contact
The terminals connect, auxiliary contact measure loop are equipped with and auxiliary moving contact 32 and the terminals that static contact 42 is assisted to connect.Certainly,
The operation keys such as start button, stop button are also provided on control panel.
Illustrate the detection process of detection contactor mirror image contact with reference to Fig. 1-5：
Original state, auxiliary contact moving contact 32 are in closed state with auxiliary static contact 42, when driving device promotion connects
Tentaculum moving component contact supports 2 movements, moving contact 31, auxiliary moving contact 32 is driven to move, after moving certain displacement, auxiliary is dynamic
Contact 32 shows signal with auxiliary 42 disjunction of static contact, disjunction twinkling signal instruction device 52, illustrates that auxiliary contact disconnects, this
When, a stroke value a can be read in measuring element dial gauge；Driving device continues to move, then after moving certain displacement, main contact
Any one moving contact 31 and static contact 41 are closed in three-phase, and main contact signal indicating device 51 shows signal, illustrates main contact
It is closed, at this point, another stroke value b can be read in measuring element dial gauge.
The signal of two signal indicating devices 51,52 shows that sequential meets 52 and shown prior to 51, and two strokes read
Value a, b meets b-a ＞ 0.5mm, then can determine that the auxiliary contact meets mirror image contact in 14048.4 annex F of GB/T and tests
F.7.2 it requires.
The above content is combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, several simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (8)
1. a kind of device for detecting contactor mirror image contact, it is characterised in that：
Driving device (1) including moving component (2) movement for driving contactor, is touched respectively with the main contact of contactor and auxiliary
Head connection forms the detection power supply of main contact measure loop and auxiliary contact measure loop, shows main contact and auxiliary contact respectively
It is closed the signal indicating device (5) of breaking signal and measures the measuring element of moving component (2) movement travel, signal indicating device
(5) be used to indicate in main contact measure loop including being arranged on main contact contact closure main contact signal indicating device (51) and
It is arranged on the auxiliary contact signal indicating device (52) that auxiliary contact contact closure is used in auxiliary contact measure loop；
Measuring element is connect with moving component (2) measures the distance that moving component (2) moves, and the main contact of contactor is included at least
One group of moving contact (31) being oppositely arranged and static contact (41), auxiliary contact include auxiliary moving contact (32) and auxiliary static contact
(42), moving contact (31) and auxiliary moving contact (32) are on moving component (2).
2. the device of detection contactor mirror image contact according to claim 1, it is characterised in that：Further include control unit,
Control unit is connect with measuring element, and control unit is connect with main contact measure loop and auxiliary contact measure loop.
3. the device of detection contactor mirror image contact according to claim 1, it is characterised in that：It further includes and is connect for fixation
The positioning device of tentaculum.
4. the device of detection contactor mirror image contact according to claim 1 or 2, it is characterised in that：The driving device
(1) it is electric drive or manual actuation.
5. the device of detection contactor mirror image contact according to claim 1 or 2, it is characterised in that：The driving device
(1) connector that the connector (21) including moving component (2) the stretching contactor case top with contactor is connect, with connecting
The motion thread bar of head connection and the motor being connect with motion thread bar.
6. the device of detection contactor mirror image contact according to claim 1 or 2, it is characterised in that：The signal designation
Device is signal lamp；The measuring element is dial gauge.
7. the device of detection contactor mirror image contact according to claim 1 or 2, it is characterised in that：The contactor
Main contact includes multigroup moving contact (31) being oppositely arranged and static contact (41), and multigroup moving contact (31) and static contact (41) are in parallel
It connects again after connection main contact signal indicating device (51), auxiliary contact is in parallel with auxiliary contact signal indicating device (52).
8. the device of detection contactor mirror image contact according to claim 1 or 2, it is characterised in that：The driving device
(1) positioned at the surface of moving component (2)；Moving contact (31) is located at positioned at the top of static contact (41), auxiliary moving contact (32)
Assist the lower section of static contact (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721166825.6U CN207502678U (en) | 2017-09-12 | 2017-09-12 | Detect the device of contactor mirror image contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721166825.6U CN207502678U (en) | 2017-09-12 | 2017-09-12 | Detect the device of contactor mirror image contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207502678U true CN207502678U (en) | 2018-06-15 |
Family
ID=62498601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721166825.6U Active CN207502678U (en) | 2017-09-12 | 2017-09-12 | Detect the device of contactor mirror image contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207502678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490762A (en) * | 2017-09-12 | 2019-03-19 | 浙江正泰电器股份有限公司 | The method and apparatus for detecting contactor mirror image contact |
-
2017
- 2017-09-12 CN CN201721166825.6U patent/CN207502678U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490762A (en) * | 2017-09-12 | 2019-03-19 | 浙江正泰电器股份有限公司 | The method and apparatus for detecting contactor mirror image contact |
| CN109490762B (en) * | 2017-09-12 | 2024-05-14 | 浙江正泰电器股份有限公司 | Method and device for detecting mirror contact of contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHEJIANG ZHENGTAI CONTACTORS Co.,Ltd. Assignor: ZHEJIANG CHINT ELECTRICS Co.,Ltd. Contract record no.: X2021330000744 Denomination of utility model: Device for detecting mirror contact of contactor Granted publication date: 20180615 License type: Common License Record date: 20211111 |
|
| EE01 | Entry into force of recordation of patent licensing contract |