CN207181635U - Ripple test instrument - Google Patents
Ripple test instrument Download PDFInfo
- Publication number
- CN207181635U CN207181635U CN201721177419.XU CN201721177419U CN207181635U CN 207181635 U CN207181635 U CN 207181635U CN 201721177419 U CN201721177419 U CN 201721177419U CN 207181635 U CN207181635 U CN 207181635U
- Authority
- CN
- China
- Prior art keywords
- direct current
- joint
- test instrument
- rectifier bridge
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
It the utility model is related to a kind of charger auxiliary equipment, especially ripple test instrument, it includes the first joint, second joint, second joint connects the first end of the movable end of direct current relay and the resistance of direct current relay respectively, second end of resistance connects the second end of the electromagnet, the fire-wire interfaces of the normally-closed contact connecting test instrument main frame of direct current relay, second end of the normally opened contact connection rectifier bridge of direct current relay, rectifier bridge is just, the direct current of cathode output end difference connecting test instrument main frame is just, negative pole interface, when power taking clipper joint alternating current, the electromagnet of relay can not drive, armature contact still closes with normally-closed contact, therefore the exchange interface of tester is powered；When power taking clipper joint direct current, the electromagnet of relay attracts armature contact connection normally opened contact, therefore direct current enters DC interface, and the both positive and negative polarity for automatically being clamped power taking by the rectifier bridge comprising four diodes is exported and corrected.
Description
Technical field
It the utility model is related to a kind of charger auxiliary equipment, especially ripple test instrument.
Background technology
In recent years, a large amount of uses of valve-regulated battery, higher requirement is proposed to the performance of charger.Former State Grid
The standard of correlation has been formulated in ripple control of the portion just to dc source.The charger precision of voltage regulation, precision of steady current, ripple factor are carried
Go out to clearly require.The damage of battery be often ripple factor it is excessive caused by.Charger is in long-term operation, its ripple system
Number total amount changes.In order to control the ripple factor and ripple content (AC ripple amount) of every group of charger, in industry specially
Develop ripple test instrument.
Existing ripple test instrument is typically provided with dc source sampling structure and AC power sampling structure, Ran Houfen simultaneously
Do not analyzed by inputting microcomputer through mould revolution (A/D) circuit after voltage division processing.Dc source sampling structure and AC power
Sampling structure is usually the signal input interface of two groups of independence, and voltage division processing structure is also entirely different corresponding to them.
After long-term use, the mark of two groups of signal input interfaces may obscure, in addition the access of operating personnel
Error may also cause exchange being electrically accessed direct current signal input interface, and DC partial voltage process circuit may be caused breakdown.Remove
Outside this, the both positive and negative polarity of direct current signal is reversed may also to cause DC partial voltage process circuit breakdown.
The content of the invention
In view of the shortcomings of the prior art, though the utility model provide it is a kind of by exchange be electrically accessed direct current signal interface or
By the reversed ripple test device that can also work as usual of the both positive and negative polarity of direct current signal interface.
The technical solution of the utility model is：
Ripple test instrument, it is characterised in that：It includes the first joint, the second joint, direct current relay, rectifier bridge
With tester main frame, first joint connects the first end of the electromagnet of direct current relay, the of rectifier bridge respectively
One end and the zero line interface of tester main frame, second joint connect the movable end and direct current of direct current relay respectively
The first end of the resistance of driving relay, the second end of the resistance connect the second end of the electromagnet, and the direct current drives
The fire-wire interfaces of the normally-closed contact connecting test instrument main frame of ejector half relay, the normally opened contact of the direct current relay connect
Connect the second end of rectifier bridge, the direct-flow positive pole interface of the cathode output end connecting test instrument main frame of the rectifier bridge, the rectification
The direct current negative pole interface of the cathode output end connecting test instrument main frame of bridge.
First joint and the second joint are the end setting of two cables being fixed on outside tester main frame and cable
There are power taking pincers.Its effect is easy for being overlapped on Devices to test.
The direct current relay, rectifier bridge are arranged in tester mainframe box, and its effect is moistureproof, dust-proof.
The beneficial effects of the utility model are：When power taking clipper joint alternating current, the electromagnet of relay can not drive, living
Movable contact still closes with normally-closed contact, therefore the exchange interface of tester is powered；When power taking clipper joint direct current, relay
Electromagnet attracts armature contact connection normally opened contact, therefore direct current enters DC interface, and by comprising four diodes
The both positive and negative polarity of power taking pincers is exported and corrected by rectifier bridge automatically, and guarantee will not do the both positive and negative polarity of the DC interface of input test instrument
Instead.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, ripple test instrument, it is characterised in that：It include the first joint, the second joint, direct current after
Electrical equipment, rectifier bridge and tester main frame, first joint connect respectively the electromagnet of direct current relay first end,
The first end of rectifier bridge and the zero line interface (N) of tester main frame, second joint connect direct current relay respectively
Movable end (S1) and direct current relay resistance (R1) first end, the resistance (R1) the second end connection described in
Second end of electromagnet, the fire-wire interfaces (L) of the normally-closed contact connecting test instrument main frame of the direct current relay are described
Second end of the normally opened contact connection rectifier bridge of direct current relay, the cathode output end connecting test instrument of the rectifier bridge
The direct-flow positive pole interface of main frame, the direct current negative pole interface of the cathode output end connecting test instrument main frame of the rectifier bridge.
First joint and the second joint are the end setting of two cables being fixed on outside tester main frame and cable
There are power taking pincers.Its effect is easy for being overlapped on Devices to test.
The direct current relay, rectifier bridge are arranged in tester mainframe box, and its effect is moistureproof, dust-proof.
Simply illustrate principle of the present utility model and most preferred embodiment described in above-described embodiment and specification, do not taking off
On the premise of the spirit and scope of the utility model, the utility model also has various changes and modifications, these changes and improvements
Both fall within claimed the scope of the utility model.
Claims (3)
1. ripple test instrument, it is characterised in that：It include the first joint, the second joint, direct current relay, rectifier bridge and
Tester main frame, first joint connect the first end of the electromagnet of direct current relay, the first of rectifier bridge respectively
End and the zero line interface of tester main frame, second joint connects the movable end of direct current relay respectively and direct current drives
The first end of the resistance of ejector half relay, the second end of the resistance connect the second end of the electromagnet, the DC driven
The fire-wire interfaces of the normally-closed contact connecting test instrument main frame of type relay, the normally opened contact connection of the direct current relay
Second end of rectifier bridge, the direct-flow positive pole interface of the cathode output end connecting test instrument main frame of the rectifier bridge, the rectifier bridge
Cathode output end connecting test instrument main frame direct current negative pole interface.
2. ripple test instrument according to claim 1, it is characterised in that：First joint and the second joint are two solid
The cable being scheduled on outside tester main frame and the end of cable are provided with power taking pincers.
3. ripple test instrument according to claim 2, it is characterised in that：The direct current relay, rectifier bridge are set
Put in tester mainframe box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721177419.XU CN207181635U (en) | 2017-09-14 | 2017-09-14 | Ripple test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721177419.XU CN207181635U (en) | 2017-09-14 | 2017-09-14 | Ripple test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207181635U true CN207181635U (en) | 2018-04-03 |
Family
ID=61747386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721177419.XU Expired - Fee Related CN207181635U (en) | 2017-09-14 | 2017-09-14 | Ripple test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207181635U (en) |
-
2017
- 2017-09-14 CN CN201721177419.XU patent/CN207181635U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20180914 |