CN205450199U - Current fault detector is crossed in short circuit of car circuit - Google Patents
Current fault detector is crossed in short circuit of car circuit Download PDFInfo
- Publication number
- CN205450199U CN205450199U CN201620179650.1U CN201620179650U CN205450199U CN 205450199 U CN205450199 U CN 205450199U CN 201620179650 U CN201620179650 U CN 201620179650U CN 205450199 U CN205450199 U CN 205450199U
- Authority
- CN
- China
- Prior art keywords
- circuit
- short circuit
- current
- car
- amperometric
- 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
Landscapes
- Locating Faults (AREA)
Abstract
Current fault detector is crossed in short circuit of car circuit is including current limiter (1), current detection ware (2), current limiter (1) with establish ties mutually current detection ware (2), need not break automobile circuit short circuit that the pencil just can find the fault point and cross current detector, realize the short circuit and cross the way of to take out stitches again when current fault looks for realizing detecting the numerical value of circuit heavy current.
Description
Technical field
This utility model relates to automobile electrically-controlled detection field, particularly car circuit from short circuit overcurrent fault detection instrument.
Background technology
Car circuit from short circuit and overcurrent fault are the phenomena of the failure in maintenance process through being commonly encountered, this fault can cause the phenomenon of blowout when occurring, dangerous generation that electric fuse frequently burns out after changing or circuit catches fire, the current detecting to automobile circuit needs open-circuit line to seal in ammeter to detect and big electric current cannot realize detection simultaneously.To serious short-circuit situation it is also possible to burn out the ammeter of detection.Keeping in repair this type of failure ratio for automobile mechanic cumbersome, particularly this type of failure ratio of accident vehicle is more typically.Even if experienced maintenance mans also can only judge that Position Approximate, wire harness to be broken one one go to smooth out with the fingers and just can find trouble point, the most not only waste time and energy but also affect the attractive in appearance of circuit and safety.
Have developed a wire harness that need not break for solution problems and just can find car circuit from short circuit and the overcurrent detector of trouble point.This equipment can realize short circuit and overcurrent fault search while can not take out stitches again road realize electric current big to circuit numerical value detection.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of car circuit from short circuit overcurrent fault detection instrument, wire harness need not be broken and just can find car circuit from short circuit and the overcurrent detector of trouble point, it is achieved road of can not taking out stitches again while short circuit and overcurrent fault lookup realizes the numerical value detection of electric current big to circuit.
Car circuit from short circuit overcurrent fault detection instrument, including demand limiter, amperometric；Described demand limiter is in series with described amperometric；
Described demand limiter uses big resistance to concatenate in circuit, plays restriction electric current and protective effect, it is to avoid cause because electric current is excessive burns insurance and to circuit and the injury of electrical equipment；
Amperometric includes pincerlike probe, Hall chip, display；Described pincerlike probe is the external interface of described amperometric, and described pincerlike probe is connected with Hall chip, and described Hall chip is connected with described display；The incoming described Hall chip of signal of collection is analyzed by pincerlike probe, and rear incoming described display shows.
Further, described pincerlike probe is two.
A kind of car circuit from short circuit overcurrent fault detection instrument uses as follows:
First, pulling down automobile storage battery positive terminal, limit current to device one end and link storage battery positive pole, the other end links circuit-under-test when in circuit；
Then being in series with described demand limiter by a described pincerlike probe, another described pincerlike probe is connected with circuit-under-test, makes automobile storage battery, demand limiter, amperometric, circuit-under-test form the Guan Bi circuit of a series connection.Have big electric current to flow through two pincerlike probes when circuit-under-test is short-circuited, and produce magnetic field, the change of voltage signal can be produced when Hall chip is near this magnetic field, by this variable signal identification and display just can be found trouble point.
The circuital current value of normal work can also be detected, it is achieved a tractor serves several purposes after fixing.
The beneficial effects of the utility model are, need not break wire harness and just can find car circuit from short circuit and the overcurrent detector of trouble point, it is achieved road of can not taking out stitches again while short circuit and overcurrent fault lookup realizes the numerical value detection of electric current big to circuit.
Accompanying drawing explanation
(with reference to the following drawings, it is better understood with many aspects of the present utility model.Ingredient in accompanying drawing is not necessarily to scale, it is preferred that emphasis is clearly exemplify principle of the present utility model.)
Fig. 1 is logical schematic during this utility model use.
Detailed description of the invention
Being further described detailed description of the invention of the present utility model with embodiment below in conjunction with the accompanying drawings, following example are only used for clearly illustrating the technical solution of the utility model, and can not limit protection domain of the present utility model with this.
As it is shown in figure 1, the concrete technical scheme of this utility model is as follows:
Car circuit from short circuit overcurrent fault detection instrument, including demand limiter 1, amperometric 2；Described demand limiter 1 is in series with described amperometric 2；
Described demand limiter 1 uses big resistance to concatenate in circuit, plays restriction electric current and protective effect, it is to avoid cause because electric current is excessive burns insurance and to circuit and the injury of electrical equipment；
Amperometric 2 includes pincerlike probe, Hall chip, display；Described pincerlike probe is the external interface of described amperometric 2, and described pincerlike probe is connected with Hall chip, and described pincerlike probe is two；Described Hall chip is connected with described display；The incoming described Hall chip of signal of collection is analyzed by pincerlike probe, and rear incoming described display shows.
A kind of car circuit from short circuit overcurrent fault detection instrument uses as follows:
First, pulling down automobile storage battery positive terminal, limit current to device 1 one end and link storage battery positive pole, the other end links circuit-under-test when in circuit；
Then being in series with described demand limiter 1 by a described pincerlike probe, another described pincerlike probe is connected with circuit-under-test, makes automobile storage battery, demand limiter 1, amperometric 2, circuit-under-test form the Guan Bi circuit of a series connection.Have big electric current to flow through two pincerlike probes when circuit-under-test is short-circuited, and produce magnetic field, the change of voltage signal can be produced when Hall chip is near this magnetic field, by this variable signal identification and display just can be found trouble point.
The circuital current value of normal work can also be detected, it is achieved a tractor serves several purposes after fixing.
The above is only preferred embodiments of the present utility model; should be understood that; for those skilled in the art; on the premise of without departing from this utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (2)
1. car circuit from short circuit overcurrent fault detection instrument, it is characterised in that include demand limiter (1), amperometric (2)；Described demand limiter (1) is in series with described amperometric (2)；
Described demand limiter (1) uses big resistance to concatenate in circuit；
Amperometric (2) includes pincerlike probe, Hall chip, display；Described pincerlike probe is the external interface of described amperometric (2), and described pincerlike probe is connected with Hall chip, and described Hall chip is connected with described display；The incoming described Hall chip of signal of collection is analyzed by pincerlike probe, and rear incoming described display shows.
2. car circuit from short circuit overcurrent fault detection instrument as claimed in claim 1, it is characterised in that described pincerlike probe is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179650.1U CN205450199U (en) | 2016-03-09 | 2016-03-09 | Current fault detector is crossed in short circuit of car circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179650.1U CN205450199U (en) | 2016-03-09 | 2016-03-09 | Current fault detector is crossed in short circuit of car circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205450199U true CN205450199U (en) | 2016-08-10 |
Family
ID=56605394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620179650.1U Expired - Fee Related CN205450199U (en) | 2016-03-09 | 2016-03-09 | Current fault detector is crossed in short circuit of car circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205450199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861045A (en) * | 2017-10-13 | 2018-03-30 | 天津市英贝特航天科技有限公司 | Short-circuit chip searching device and method based on direct current CT technology |
-
2016
- 2016-03-09 CN CN201620179650.1U patent/CN205450199U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861045A (en) * | 2017-10-13 | 2018-03-30 | 天津市英贝特航天科技有限公司 | Short-circuit chip searching device and method based on direct current CT technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103499736B (en) | Over-current detection circuit and current foldback circuit | |
| CN206038771U (en) | Electric automobile insulation resistance detection circuitry | |
| CN102751714B (en) | Overvoltage protection circuit and current sampling device | |
| CN101261301A (en) | Locomotive control loop grounding detection circuit and grounding detection method and wire break detection method | |
| CN106655145B (en) | A kind of battery power feeds electric voltage reverse-connection protection circuit | |
| CN103399571A (en) | Detecting device and method applied to high-voltage circuit of electromobile motor controller | |
| CN103592537B (en) | Electric line fault AC impedance follows the tracks of determining method fast | |
| CN103414155A (en) | Neutral point installation electronic type rapid harmonic-vibration eliminating device | |
| CN205450199U (en) | Current fault detector is crossed in short circuit of car circuit | |
| CN210835189U (en) | Arc fault and electric leakage fault detection protection system and charging pile | |
| CN204696641U (en) | A kind of equipment for the protection of high-tension battery using electricity system and the vehicle with this equipment | |
| CN209167865U (en) | A kind of On-off signal detection circuit and monitoring system | |
| CN201449437U (en) | Voltage-withstanding tester with high-voltage protective circuit | |
| CN207703963U (en) | Vehicle complete vehicle wire overloading short-circuit test mechanism | |
| CN107884666A (en) | MBUS bus short circuits detect circuit and its detection method | |
| CN201255763Y (en) | Electric bicycle failure automatic detection and display apparatus and electric bicycle | |
| CN106711952A (en) | Compound amplification type voltage-stabilizing source with multi-point monitoring and protection coexistence | |
| CN109633411B (en) | High-voltage distribution circuit state detection system for special vehicle | |
| CN203275458U (en) | Special terminal for live test of lightening arrester | |
| CN106124841A (en) | The fan testing circuit of a kind of Intelligent charger for electric bicycle and detection method | |
| CN205210160U (en) | Fence detector | |
| CN205049686U (en) | A fault finding device for cutting off power supply tripping operation circuit | |
| CN104407266B (en) | A kind of circuit for detecting charging system current capacity | |
| CN205791478U (en) | A kind of towed elevator phase order of 3-phase AC protector | |
| CN205646943U (en) | Diverging device and high voltage charging circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160810 Termination date: 20180309 |