CN204269713U - Multi input impedance operating voltage proving installation - Google Patents
Multi input impedance operating voltage proving installation Download PDFInfo
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- CN204269713U CN204269713U CN201420674733.9U CN201420674733U CN204269713U CN 204269713 U CN204269713 U CN 204269713U CN 201420674733 U CN201420674733 U CN 201420674733U CN 204269713 U CN204269713 U CN 204269713U
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- resistance
- conduit
- salient point
- operating voltage
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Abstract
The utility model relates to multi input impedance operating voltage proving installation.The utility model solves the problem of prior art precision deficiency, described fixed housing is located on described device body, described connection conduction element comprises base conductor and bonding conductor, be connected by elastic wire between described bonding conductor with described base conductor, described base conductor is fixed on described central through hole and is electrically connected with the first test side, second end of the first resistance is disposed in the first described via position, second end of the second resistance is disposed in the second described via position, second end of the 3rd resistance is disposed in the 3rd described via position, second end of the 4th resistance is disposed in the 4th described via position, described first conduit, second conduit, 3rd conduit and the 4th conduit are U-lag road, second test side is connected with the second link of the voltage table in device body.The utility model proving installation precision is high.
Description
Technical field
The utility model belongs to test chart, particularly a kind of multi input impedance operating voltage proving installation.
Background technology
In the safety testing field of electric equipment products, the Measurement accuracy of electric equipment products internal operating voltages is the prerequisite of product electrical strength and creepage distance and electric clearance measurement, for also there being clear and definite definition (operating voltage: when utensil is to determine voltage and to run in normal working conditions in operating voltage standard, the ceiling voltage that the part considered is born), because two output impedance measured when operating voltage is tested are unknown, therefore in measuring process, test result is not identical because input impedance is different to there will be different instrument, and fall far short with the operating voltage of reality, just current, the input impedance of general desk-top multimeter is about 200k, the input impedance of handheld multimeter is 1M about Ω, operating voltage test request can not be met, the test of current operating voltage also has use oscillograph to carry out, although it is main anti-up to 66M Ω that input inquired into by the oscillograph of 100: 1, but its measuring accuracy aspect cannot reach the requirement that operating voltage is measured.Therefore, we to propose a kind of multi input impedance operating voltage testing scheme imperative.
China Patent Publication No. CN 203012007 U, publication date on June 19th, 2013, disclose a kind of Novel voltmeter, comprise: shell body, described shell body inside is provided with pointer voltage table unit and digital voltage table unit, described pointer voltage table unit and the parallel connection of digital voltage table unit, described pointer voltage table unit is provided with needle dc voltmeter switch, and described digital voltage table unit is provided with digital voltmeter switch.Like the prior art, its measuring accuracy aspect cannot reach the requirement that operating voltage is measured to this technical scheme.
Utility model content
The test that the utility model object is to solve current operating voltage also has use oscillograph to carry out, although it is main anti-up to 66M Ω that input inquired into by the oscillograph of 100: 1, but its measuring accuracy aspect cannot reach the problem of the requirement that operating voltage is measured, and provides a kind of multi input impedance operating voltage proving installation with good measuring accuracy.
The utility model solves the technical scheme that its technical matters adopts: a kind of multi input impedance operating voltage proving installation, comprise device body and the first test side, second test side, the first resistance that resistance value reduces successively is provided with in described device body, second resistance, 3rd resistance and the 4th resistance, the first end of the first resistance, the first end of the second resistance, the first end of the 3rd resistance is all connected with the first link of the voltage table in device body with the first end of the 4th resistance, multi input impedance operating voltage proving installation also include one connect conduction element and with the fixed housing being connected conduction element and matching, described fixed housing is located on described device body, described fixed housing is set with a central through hole, first via, second via, 3rd via and the 4th via, described connection conduction element comprises base conductor and bonding conductor, be connected by elastic wire between described bonding conductor with described base conductor, described base conductor is fixed on described central through hole and is electrically connected with the first test side, central through hole is communicated with the first via by the first conduit, central through hole is communicated with the second via by the second conduit, central through hole is communicated with the 3rd via by the 3rd conduit, central through hole is communicated with the 4th via by the 4th conduit, second end of the first resistance is disposed in the first described via position, second end of the second resistance is disposed in the second described via position, second end of the 3rd resistance is disposed in the 3rd described via position, second end of the 4th resistance is disposed in the 4th described via position, described first conduit, second conduit, 3rd conduit and the 4th conduit are U-lag road, second test side is connected with the second link of the voltage table in device body.The technical program can manual switchover be incision and the excision of resistance, after instrument is the first test side and the second test side access measuring circuit, can control linkage conduction element, the 4th resistance is switched to one by one from the first resistance, and the voltage recorded under different input resistance condition, accordingly by calculating, measured operating voltage can be obtained, the voltage measured is accurately reasonable, there are enough precision, the technical program is comparatively stable when switching simultaneously, mainly U-lag road, there are two bendings, when test, bonding conductor position is fixed, action can not be there is in bonding conductor when test, there will not be false triggering action, and when being in center through hole, voltage cannot be detected, prevent the generation that mistake is measured.
As preferably, the first conducting salient point is provided with bottom described first via, the second conducting salient point is provided with bottom second via, the 3rd conducting salient point is provided with bottom 3rd via, the 4th conducting salient point is provided with bottom 4th via, described first conducting salient point is electrically connected with the second end of the first resistance, described second conducting salient point is electrically connected with the second end of the second resistance, described 3rd conducting salient point is electrically connected with the second end of the 3rd resistance, and described 4th conducting salient point is electrically connected with the second end of the 4th resistance.
As preferably, the upper surface center of described bonding conductor is connected with described base conductor by spring, and the lower surface of described bonding conductor is provided with the concave point matched with all conducting salient points.Central authorities are arranged, and concave point and conducting salient point coupling, be connected firmly during test.
Substantial effect of the present utility model is: the technical program can manual switchover be incision and the excision of resistance, after instrument is the first test side and the second test side access measuring circuit, can control linkage conduction element, the 4th resistance is switched to one by one from the first resistance, and the voltage recorded under different input resistance condition, accordingly by calculating, measured operating voltage can be obtained, the voltage measured is accurately reasonable, has enough precision.
Accompanying drawing explanation
Fig. 1 is a kind of electrical block diagram of the present embodiment;
Fig. 2 is a kind of shell mechanism schematic diagram of the present embodiment.
In figure: 1, fixed housing, 2, base conductor, 3, elastic wire, 4, bonding conductor, the 5, second conducting salient point, 6, concave point, the 7, the 3rd conduit, the 8, the 3rd via, 9, voltage table, the 10, first test side, the 11, second test side.
Embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
Embodiment:
A kind of multi input impedance operating voltage proving installation (see accompanying drawing 1 and accompanying drawing 2), comprise device body and the first test side, second test side, the first resistance that resistance value reduces successively is provided with in described device body, second resistance, 3rd resistance and the 4th resistance, the first end of the first resistance, the first end of the second resistance, the first end of the 3rd resistance is all connected with the first link of the voltage table 9 in device body with the first end of the 4th resistance, multi input impedance operating voltage proving installation also include one connect conduction element and with the fixed housing 1 being connected conduction element and matching, described fixed housing is located on described device body, described fixed housing is set with a central through hole, first via, second via, 3rd via and the 4th via, described connection conduction element comprises base conductor 2 and bonding conductor 4, be connected by elastic wire 3 between described bonding conductor with described base conductor, described base conductor is fixed on described central through hole and is electrically connected with the first test side 10, central through hole is communicated with the first via by the first conduit, central through hole is communicated with the second via by the second conduit, central through hole is communicated with the 3rd via 8 by the 3rd conduit 7, central through hole is communicated with the 4th via by the 4th conduit, second end of the first resistance is disposed in the first described via position, second end of the second resistance is disposed in the second described via position, second end of the 3rd resistance is disposed in the 3rd described via position, second end of the 4th resistance is disposed in the 4th described via position, described first conduit, second conduit, 3rd conduit and the 4th conduit are U-lag road, second test side 11 is connected with the second link of the voltage table in device body.The first conducting salient point is provided with bottom described first via, the second conducting salient point 5 is provided with bottom second via, the 3rd conducting salient point is provided with bottom 3rd via, the 4th conducting salient point is provided with bottom 4th via, described first conducting salient point is electrically connected with the second end of the first resistance, described second conducting salient point is electrically connected with the second end of the second resistance, and described 3rd conducting salient point is electrically connected with the second end of the 3rd resistance, and described 4th conducting salient point is electrically connected with the second end of the 4th resistance.The upper surface center of described bonding conductor is connected with described base conductor by spring, and the lower surface of described bonding conductor is provided with the concave point 6 matched with all conducting salient points.
The present embodiment can manual switchover be incision and the excision of resistance, after instrument is the first test side and the second test side access measuring circuit, can control linkage conduction element, the 4th resistance is switched to one by one from the first resistance, and the voltage recorded under different input resistance condition, accordingly by calculating, measured operating voltage can be obtained, the voltage measured is accurately reasonable, there are enough precision, the technical program is comparatively stable when switching simultaneously, there will not be false triggering action, and when being in center through hole, voltage cannot be detected, prevent the generation that mistake is measured.
Above-described embodiment is one of the present utility model preferably scheme, not does any pro forma restriction to the utility model, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (3)
1. a multi input impedance operating voltage proving installation, comprise device body and the first test side, second test side, it is characterized in that: in described device body, be provided with the first resistance that resistance value reduces successively, second resistance, 3rd resistance and the 4th resistance, the first end of the first resistance, the first end of the second resistance, the first end of the 3rd resistance is all connected with the first link of the voltage table in device body with the first end of the 4th resistance, multi input impedance operating voltage proving installation also include one connect conduction element and with the fixed housing being connected conduction element and matching, described fixed housing is located on described device body, described fixed housing is set with a central through hole, first via, second via, 3rd via and the 4th via, described connection conduction element comprises base conductor and bonding conductor, be connected by elastic wire between described bonding conductor with described base conductor, described base conductor is fixed on described central through hole and is electrically connected with the first test side, central through hole is communicated with the first via by the first conduit, central through hole is communicated with the second via by the second conduit, central through hole is communicated with the 3rd via by the 3rd conduit, central through hole is communicated with the 4th via by the 4th conduit, second end of the first resistance is disposed in the first described via position, second end of the second resistance is disposed in the second described via position, second end of the 3rd resistance is disposed in the 3rd described via position, second end of the 4th resistance is disposed in the 4th described via position, described first conduit, second conduit, 3rd conduit and the 4th conduit are U-lag road, second test side is connected with the second link of the voltage table in device body.
2. multi input impedance operating voltage proving installation according to claim 1, it is characterized in that: bottom described first via, be provided with the first conducting salient point, the second conducting salient point is provided with bottom second via, the 3rd conducting salient point is provided with bottom 3rd via, the 4th conducting salient point is provided with bottom 4th via, described first conducting salient point is electrically connected with the second end of the first resistance, described second conducting salient point is electrically connected with the second end of the second resistance, described 3rd conducting salient point is electrically connected with the second end of the 3rd resistance, described 4th conducting salient point is electrically connected with the second end of the 4th resistance.
3. multi input impedance operating voltage proving installation according to claim 2, it is characterized in that: the upper surface center of described bonding conductor is connected with described base conductor by spring, the lower surface of described bonding conductor is provided with the concave point matched with all conducting salient points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674733.9U CN204269713U (en) | 2014-11-13 | 2014-11-13 | Multi input impedance operating voltage proving installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674733.9U CN204269713U (en) | 2014-11-13 | 2014-11-13 | Multi input impedance operating voltage proving installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204269713U true CN204269713U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420674733.9U Expired - Fee Related CN204269713U (en) | 2014-11-13 | 2014-11-13 | Multi input impedance operating voltage proving installation |
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| CN (1) | CN204269713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738727A (en) * | 2019-01-09 | 2019-05-10 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | A kind of test circuit of operating voltage test device, method and device |
-
2014
- 2014-11-13 CN CN201420674733.9U patent/CN204269713U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738727A (en) * | 2019-01-09 | 2019-05-10 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | A kind of test circuit of operating voltage test device, method and device |
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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 |
Granted publication date: 20150415 Termination date: 20171113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |