CN105489327A - Composite load with high power, large current and small volume - Google Patents
Composite load with high power, large current and small volume Download PDFInfo
- Publication number
- CN105489327A CN105489327A CN201511018964.XA CN201511018964A CN105489327A CN 105489327 A CN105489327 A CN 105489327A CN 201511018964 A CN201511018964 A CN 201511018964A CN 105489327 A CN105489327 A CN 105489327A
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- CN
- China
- Prior art keywords
- resistance
- battery lead
- resistor
- power
- lead plate
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/001—Mass resistors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
- H01C7/022—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances
- H01C7/023—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances containing oxides or oxidic compounds, e.g. ferrites
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
- H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances
- H01C7/043—Oxides or oxidic compounds
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Ceramic Engineering (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a composite load with high power, large current and small volume. The composite load is provided with three electrode plates, resistors are electrically connected onto end surfaces of two sides of each electrode plate respectively, one end of a resistor lead on each of the three electrode plates is electrically connected through a pin of respective electrode plate to form a Y shape, the other ends of the resistor leads extend to form three leads, the resistors at the two sides of each electrode plate are respectively a PTC-type resistor and an NTC-type resistor, the PTC-type resistor and the NTC-type resistor are connected in parallel through the electrode plate, and the whole forms a composite power load resistor. The composite load with high power, large current and small volume adopts a functional ceramic technique, and the problem of large space occupied is solved; meanwhile, the volume of the resistor of 100 watts is only 2.5 cubic centimeters, the output resistance value of the resistor can be ensured not to change at (-40)-200 DEG C, and the accuracy of motor detection is improved.
Description
Technical field
The present invention relates to a kind of motor load, specifically a kind of high-power, compound load of big current, small size.
Background technology
In three phase electric machine testing process, need its loading, whether the torque and rotational speed that when detecting three phase electric machine restarting, its supporting starting drive is corresponding meets the demands.Load adopts direct current machine usually, increases dead load resistance to direct current machine, changes exciting voltage, to change the size of three phase electric machine load.Owing to requiring high-power, big current to the load resistance of direct current machine, usual conventional, electric-resistance is metal alloy wires or the composition such as metal film and carbon granules.Therefore its volume is especially big, the resistor of 100 watts, and its volume, at 4000 cubic centimetres, makes the use of client bring certain impact on the space of laying.
Summary of the invention
The loading resistor used when detecting for three phase electric machine in prior art is due to high-power, big current, volume is large, the space of laying is had to the problem of certain requirement, the technical problem to be solved in the present invention is to provide a kind of high-power, compound load of big current, small size.
For solving the problems of the technologies described above, the technical solution used in the present invention is: one of the present invention is high-power, the compound load of big current, small size, there are three battery lead plates, each battery lead plate both sides end face is electrically connected with resistance respectively, the one end of resistance lead on three battery lead plates is electrically connected respectively by the pin of respective battery lead plate and forms Y and connect, and the other end draws formation three lead-in wire.
Each battery lead plate two side resistance is respectively PTC type resistance and NTC type resistance, and PTC type resistance and NTC type resistance are connected in parallel by battery lead plate, the compound power termination resistance of overall formation.
The coated insulating material in described each battery lead plate end, three battery lead plate two ends are mechanically connected by connector; Be wholy set in housing, each pin wiring is drawn by housing; Housing is the round pie of hollow; Round pie is in thickness direction three trimmings.
The present invention has following beneficial effect and advantage:
1. the compound load of the present invention's high-power, big current, small size adopts functional ceramic technology, and solve the problem that space hold is large, its volume of the resistance of same 100 watts only has 2.5 cubic centimetres.
2. the present invention is by changing structure and the material of load resistance, make the load resistance of equal-wattage, reduced volume, save material, reduce installing space, reduce failure rate, owing to adopting the compound power termination resistance of PTC and NTC of one processing and fabricating, can ensure can not change at-40 ~ 200 DEG C of its output resistances, improve the accuracy of electric machines test.
Accompanying drawing explanation
Fig. 1 is the inner schematic diagram of the present invention;
Fig. 2 is mechanical assembly drawing of the present invention;
Fig. 3 is electrode plate structure schematic diagram in the present invention;
Fig. 4 is combined resistance structural representation in the present invention;
Fig. 5 is that the present invention assembles rear structural representation.
Wherein, 1 is battery lead plate, and 2 is pin, and 3 is PTC type resistance, and 4 is NTC type resistance, and 5 is housing, and 6 is screw, and 7 is dielectric film; R1-1 is the first resistance, and R1-2 is the second resistance, and R1-3 is the 3rd resistance, and R2-1 is the 4th resistance, and R2-2 is the 5th resistance, and R2-13 is the 6th resistance, and L1 ~ L3 is the first ~ tri-lead-in wire.
Embodiment
Below in conjunction with Figure of description, the present invention is further elaborated.
As Fig. 1 ~ 5 show, the present invention is high-power, the compound load of big current, small size, there are three battery lead plates 1, each battery lead plate 1 both sides end face is electrically connected with resistance respectively, the one end of resistance lead on three battery lead plates 1 is electrically connected respectively by the pin 2 of respective battery lead plate 1 and forms Y and connect, and the other end draws formation three lead-in wire.
Each battery lead plate 1 liang of side resistance is respectively PTC type resistance 3 and is connected in parallel by battery lead plate 4 with NTC type resistance 4, PTC type resistance 3NTC type resistance 4, the compound power termination resistance of overall formation, as shown in Figure 4.
As shown in Figure 1, in the present embodiment, the first ~ tri-resistance R1-1, R1-2, R1-3 is PTC chip, four ~ six resistance R2-1, R2-2, R2-3 is NTC chip, the the first ~ tri-resistance R1-1 is welded on three battery lead plate two sides respectively, R1-2, R1-3 and four ~ six resistance R2-1, R2-2, R2-3, be equivalent to the first resistance R1-1 and the 4th resistance R2-1 in parallel, second resistance R1-2 and the 5th resistance R2-2 is in parallel, 3rd resistance R1-3 and the 6th resistance R2-3 is in parallel, by the pin 2 of each battery lead plate 1, three groups of resistance are connected into Y again and connect form, the other end draws formation three lead-in wire, namely the first ~ tri-causes line L1 ~ L3, as shown in Figure 1.
The coated insulating material in each battery lead plate 1 end, three battery lead plate 1 two ends are mechanically connected by connector, form structure as figure 5 illustrates.Housing is the round pie of hollow, is highly about 20mm, and in 1 three trimmings of parallel three battery lead plates of thickness direction, Stability Analysis of Structures, is convenient to client's fixed installation, increases fan hot side simultaneously and amasss.
As shown in Figure 2, complete single the coated insulating material in battery lead plate end after welding, the present embodiment adopts dielectric film 7, three battery lead plate 1 two ends are by connector (the present embodiment employing screw) mechanical connection, form a triangular structure, this triangular structure be encased in housing 5 (the present embodiment employing aluminium casing), three lead-out wires are drawn by housing, are connected during use with outside lead again.Housing 5 adopts aluminium casing.
As shown in Figure 3, battery lead plate is square, extends pin 2.
The present invention utilizes functional ceramic technology, PTC is positive temperature coefficient resistor (becoming large along with temperature raises resistance), NTC is negative temperature coefficient resister (diminishing along with temperature raises resistance), utilize their characteristic, the compound power termination resistance of PTC and NTC of the processing and fabricating that is combined into one.And ensure can not change at-40 ~ 200 DEG C of its output resistances.
Claims (6)
1. high-power, the compound load of big current, small size, it is characterized in that: there are three battery lead plates, each battery lead plate both sides end face is electrically connected with resistance respectively, the one end of resistance lead on three battery lead plates is electrically connected respectively by the pin of respective battery lead plate and forms Y and connect, and the other end draws formation three lead-in wire.
2. by high-power, the compound load of big current, small size according to claim 1, it is characterized in that: each battery lead plate two side resistance is respectively PTC type resistance and NTC type resistance, PTC type resistance and NTC type resistance are connected in parallel by battery lead plate, the compound power termination resistance of overall formation.
3., by high-power, the compound load of big current, small size according to claim 1, it is characterized in that: the coated insulating material in described each battery lead plate end, three battery lead plate two ends are mechanically connected by connector.
4., by high-power, the compound load of big current, small size according to claim 1, it is characterized in that: be wholy set in housing, each pin wiring is drawn by housing.
5., by high-power, the compound load of big current, small size according to claim 4, it is characterized in that: housing is the round pie of hollow.
6., by high-power, the compound load of big current, small size according to claim 5, it is characterized in that: round pie is in thickness direction three trimmings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018964.XA CN105489327A (en) | 2015-12-30 | 2015-12-30 | Composite load with high power, large current and small volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018964.XA CN105489327A (en) | 2015-12-30 | 2015-12-30 | Composite load with high power, large current and small volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105489327A true CN105489327A (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511018964.XA Pending CN105489327A (en) | 2015-12-30 | 2015-12-30 | Composite load with high power, large current and small volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105489327A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06208905A (en) * | 1993-01-11 | 1994-07-26 | Fujitsu Ltd | Resistor |
| CN2456178Y (en) * | 2000-12-25 | 2001-10-24 | 展祥电机有限公司 | Resistive load |
| CN1339113A (en) * | 1999-12-02 | 2002-03-06 | 株式会社辰巳菱机 | Dry load test apparatus |
| CN1697977A (en) * | 2003-07-08 | 2005-11-16 | 株式会社兴研 | Dry-type high-voltage load system device and method for preventing chain disconnection/arc discharge of the device |
| CN101335451A (en) * | 2007-06-25 | 2008-12-31 | 新疆新能源股份有限公司 | Transient current buffering suppresser |
| CN104237788A (en) * | 2014-10-10 | 2014-12-24 | 南车株洲电机有限公司 | High-speed permanent magnet traction motor temperature rise testing method and resistor cabinet |
| CN205451955U (en) * | 2015-12-30 | 2016-08-10 | 丹东科亮电子有限公司 | High -power, heavy current, load of little volume recombination type |
-
2015
- 2015-12-30 CN CN201511018964.XA patent/CN105489327A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06208905A (en) * | 1993-01-11 | 1994-07-26 | Fujitsu Ltd | Resistor |
| CN1339113A (en) * | 1999-12-02 | 2002-03-06 | 株式会社辰巳菱机 | Dry load test apparatus |
| CN2456178Y (en) * | 2000-12-25 | 2001-10-24 | 展祥电机有限公司 | Resistive load |
| CN1697977A (en) * | 2003-07-08 | 2005-11-16 | 株式会社兴研 | Dry-type high-voltage load system device and method for preventing chain disconnection/arc discharge of the device |
| CN101335451A (en) * | 2007-06-25 | 2008-12-31 | 新疆新能源股份有限公司 | Transient current buffering suppresser |
| CN104237788A (en) * | 2014-10-10 | 2014-12-24 | 南车株洲电机有限公司 | High-speed permanent magnet traction motor temperature rise testing method and resistor cabinet |
| CN205451955U (en) * | 2015-12-30 | 2016-08-10 | 丹东科亮电子有限公司 | High -power, heavy current, load of little volume recombination type |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160413 |