CN204758800U - Direct current combination load system - Google Patents
Direct current combination load system Download PDFInfo
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- CN204758800U CN204758800U CN201520539739.XU CN201520539739U CN204758800U CN 204758800 U CN204758800 U CN 204758800U CN 201520539739 U CN201520539739 U CN 201520539739U CN 204758800 U CN204758800 U CN 204758800U
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- 230000005611 electricity Effects 0.000 abstract 3
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model relates to a direct current combination load system, include the anodal and test negative pole of the test of being connected with the measured device to reach positive input terminal and the negative pole input be connected with the adjustable constant voltage power supply's of outside direct current input electricity, the test is anodal to be connected with the positive input terminal electricity, the test negative pole is connected with negative pole input electricity, it has a plurality of load resistance to connect in parallel between test negative pole and the negative pole input, every load resistance goes up to establish ties there is control switch. Have a plurality of load resistance owing to connect in parallel between test negative pole and negative pole input, every load resistance goes up to establish ties has control switch, when the test, select different load resistance, perhaps a plurality of load resistance combination through control switch to the resistance value that the company of making is gone into in the test is different, has reached the purpose of conditioning load resistance as required, simultaneously, can select less load resistance, improves the load current of load system.
Description
Technical field
The utility model relates to electronic apparatus field tests, particularly a kind of direct current combination load system.
Background technology
Load box is a kind of power detecting equipment, mainly detects generator, uninterrupted power source (ups), power transmitting device and safeguards, is that genset and UPS uninterrupted power source periodicmaintenance maintain tool equipment; Current commercially available DC load case is substantially all fixed, and load capacity is non-adjustable.Part programmable DC load case, the load current provided is less than normal again.
Utility model content
The utility model provides a kind of direct current combination load system, the technical matters that above-mentioned load capacity is non-adjustable to solve, load current is less than normal.
In order to solve the problems of the technologies described above, the utility model provides a kind of direct current combination load system, comprise the test positive pole that is connected with measured device and test negative pole, and the electrode input end to be electrically connected with the input end of external dc adjustable stabilized voltage supply and negative input, described test positive pole is electrically connected with electrode input end, described test negative pole is electrically connected with negative input, be parallel with multiple pull-up resistor between described test negative pole and negative input, described each pull-up resistor is in series with gauge tap.
The beneficial effects of the utility model are: owing to being parallel with multiple pull-up resistor between test negative pole and negative input, each pull-up resistor is in series with gauge tap; When testing, select different pull-up resistors by gauge tap, or the combination of multiple pull-up resistor, thus the resistance value making to be connected in test is different, has reached the object of regulating load resistance as required, simultaneously, less pull-up resistor can be selected, improve the load current of load system.
Further, described multiple pull-up resistor is divided into two groups, is respectively first group of pull-up resistor and second group of pull-up resistor; Wherein, the resistance value of each pull-up resistor in described first group of pull-up resistor is unequal, and the resistance value of each pull-up resistor in described second group of pull-up resistor is equal.
The beneficial effect of above-mentioned further scheme is adopted to be: to select first group of pull-up resistor by gauge tap, the rated current providing different size can be combined; Select the second pull-up resistor by gauge tap, the load that the rated current be several times as much as in single second pull-up resistor is provided can be combined.
Further, the voltage of described external dc adjustable stabilized voltage supply is 28V, described first group of pull-up resistor comprises ten pull-up resistors, the resistance value of the first resistance is 285 Ω, the resistance value of the second resistance is 142.5 Ω, the resistance value of the 3rd resistance is 71.25 Ω, the resistance value of the 4th resistance is 35.6 Ω, the resistance value of the 5th resistance is 28.5 Ω, the resistance value of the 6th resistance is 14.25 Ω, and the resistance value of the 7th resistance is 9.5 Ω, and the resistance value of the 8th resistance is 4.75 Ω, the resistance value of the 9th resistance is 2.95 Ω, and the resistance value of the tenth resistance is 1.52 Ω.
The beneficial effect of above-mentioned further scheme is adopted to be: the input voltage adopting 28V, according to above-mentioned pull-up resistor, the electric current that each pull-up resistor is corresponding is respectively: the load current of the first resistance is 0.1A, the load current of the second resistance is 0.2A, the load current of the 3rd resistance is 0.4A, the load current of the 4th resistance is 0.8A, the load current of the 5th resistance is 1A, the load current of the 6th resistance is 2A, the load current of the 7th resistance is 3A, the load current of the 8th resistance is 6A, the load current of the 9th resistance is 10A, the load current of the tenth resistance is 20A, the various current loadings that resolution is 0.1A can be combined into by gauge tap.
Further, described second group of pull-up resistor comprises four pull-up resistors, and the resistance value of each pull-up resistor is wherein: 0.75 Ω.
The beneficial effect of above-mentioned further scheme is adopted to be: the pull-up resistor adopting 0.75 Ω, the load current of its each pull-up resistor can reach 20A, has very high load capacity.
Further, described direct current combination load system also comprises electric cabinet and load box, and described test positive pole, described test negative pole, described negative input, described electrode input end and described gauge tap are arranged on described electric cabinet; Described pull-up resistor is arranged in described load box, and described electric cabinet and described load box are electrically connected by cable.
The beneficial effect of above-mentioned further scheme is adopted to be: because the heating of pull-up resistor is higher, to need to take special cooling measure, be independently arranged in load box by pull-up resistor, independently heat dissipation equipment is set, improve radiating efficiency.
Further, described gauge tap is toggle switch.
The beneficial effect of above-mentioned further scheme is adopted to be: toggle switch operation is very simple, user-friendly.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the utility model direct current combination load system,
Fig. 2 is the utility model direct current combination load system electric control box structure figure,
Fig. 3 is the utility model direct current combination load system load box structure figure.
In accompanying drawing, the list of parts representated by each label is as follows:
01, electric cabinet, 011, front panel, 012, large resistance value pull-up resistor, 013, cabinet, 014, rear panel, 015, D.C. contactor, 0111, small area analysis load control switch region, 0112, big current gauge tap region, 0141, electric cabinet cable bonding pad, 02, load box, 021, feet, 022, load box cable bonding pad
Embodiment
Below in conjunction with drawings and embodiments, the utility model is further described.
The circuit theory diagrams of the utility model direct current combination load system are see Fig. 1, a kind of direct current combination load system, comprise the test positive pole JZ2 that is connected with measured device and test negative pole JZ1, and the electrode input end DC+ to be electrically connected with the input end of institute external dc adjustable stabilized voltage supply and negative input DC-, test positive pole JZ2 is electrically connected with electrode input end DC+, test negative pole JZ1 is electrically connected DC-with negative input, multiple pull-up resistor is parallel with between test negative pole JZ1 and negative input DC-, each pull-up resistor is in series with gauge tap, the resistance middle rank 14 of wherein connecting, be respectively the first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, 5th resistance R5, 6th resistance R6, 7th resistance R7, 8th resistance R8, 9th resistance R9 and the tenth resistance R10, second group of pull-up resistor comprises four pull-up resistor R11, R12, R13 and R14, R1 is connected in series gauge tap S1, R2 and is connected in series gauge tap S2, R3 serial connection gauge tap S3, R4 is connected in series gauge tap S4, R5 and is connected in series gauge tap S5, R6 serial connection gauge tap S6, R7 is connected in series gauge tap S7, R8 is connected in series gauge tap S8, R9 and is connected in series gauge tap S9, R10 serial connection gauge tap S10, R11 is connected in series gauge tap S11, R12 is connected in series gauge tap S12, R13 and is connected in series gauge tap S13, R14 serial connection gauge tap S14, the resistance value of the first resistance is 285 Ω, the resistance value of the second resistance is 142.5 Ω, the resistance value of the 3rd resistance is 71.25 Ω, the resistance value of the 4th resistance is 35.6 Ω, and the resistance value of the 5th resistance is 28.5 Ω, and the resistance value of the 6th resistance is 14.25 Ω, the resistance value of the 7th resistance is 9.5 Ω, the resistance value of the 8th resistance is 4.75 Ω, and the resistance value of the 9th resistance is 2.95 Ω, and the resistance value of the tenth resistance is 1.52 Ω, the resistance value that second group of pull-up resistor comprises four pull-up resistors R11, R12, R13 and R14 is all 0.75 Ω.
Input the voltage of direct-flow voltage regulation of 28.5V at electrode input end DC+ and negative input DC-, electric current corresponding on each pull-up resistor is respectively: the corresponding 0.2A of R1 corresponding 0.1A, R2, the corresponding 1A of R3 corresponding 0.4A, R4 corresponding 0.8A, R5, the corresponding 6A of R6 corresponding 2A, R7 corresponding 3A, R8, the corresponding 10A of R9, the corresponding 40A of R10 corresponding 10A, R11 corresponding 40A, R12, the corresponding 40A of R13 corresponding 40A, R14.
The load capacity that whole like this direct current combination load system just may be used for 200A and following DC load current detects, the range regulation of 0.1A-203.5A can be provided, achieve the free adjustment that resolution is 0.1A, substantially increase the usable range of direct current combination load system.
The utility model direct current combination load system electric control box structure figure, electric cabinet 01 comprises cabinet 013, the inside of cabinet 013 is provided with four large ohmic load resistance 012, with D.C. contactor 015, front panel 011 is provided with the tested test positive pole be connected and tests negative pole, small area analysis load control switch area 0 111 and big current gauge tap area 0 112, four gauge tap be electrically connected with four large ohmic load resistance 012 are provided with in small area analysis load control switch area 0 111, big current gauge tap area 0 112 is provided with ten gauge tap be connected with ten pull-up resistors in load box 02, front panel 011 is also provided with emergency stop switch and Test Switchboard box pilot lamp, rear panel 014 is provided with for the electrode input end of the input end electrical connection of the fan of cabinet 013 internal cooling, electric cabinet cable bonding pad 0141 and institute's external dc adjustable stabilized voltage supply and negative input, and electric cabinet cable bonding pad 0141 is provided with the interface corresponding with interface in load box cable bonding pad 022.
The utility model direct current combination load system load box structure figure, comprise the pull-up resistor that load box 02 inside is provided with ten small resistance value, be electrically connected with counter structure in load box cable bonding pad 022 on load box 02 respectively, go out to be respectively equipped with feet 021 at angle, four, the bottom of load box 02, be provided with powerful fan Hot-air fan in the inside of load box 02, the joint on load box 02 is powered for fanning Hot-air fan by external power source; Interface in electric cabinet cable bonding pad 0141 is electrically connected with the interface in load box cable bonding pad 022 by cable.
Direct current combination load system of the present utility model, also can be arranged in load box by whole pull-up resistor; The voltage of voltage regulation value of different voltage and different load resistor value can be selected according to actual service condition.
In description of the present utility model, it is to be appreciated that term " first ", " second ", " the 3rd ", " the 4th " only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, be limited with " first ", " second ", " the 3rd ", " the 4th " feature can express or impliedly comprise at least one this feature.
In the utility model, being connected is make the connection of two element internals or the interaction relationship of two elements by pipeline.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
Above the utility model direct current combination load system is described in detail, applies specific case herein and principle of the present utility model and embodiment are set forth.The explanation of above embodiment just understands core concept of the present utility model for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. a direct current combination load system, comprise the test positive pole that is connected with measured device and test negative pole, and the electrode input end to be electrically connected with the input end of external dc adjustable stabilized voltage supply and negative input, described test positive pole is electrically connected with electrode input end, described test negative pole is electrically connected with negative input, it is characterized in that, between described test negative pole and negative input, be parallel with multiple pull-up resistor, described each pull-up resistor is in series with gauge tap.
2. direct current combination load system according to claim 1, is characterized in that, described multiple pull-up resistor is divided into two groups, is respectively first group of pull-up resistor and second group of pull-up resistor; Wherein, the resistance value of each pull-up resistor in described first group of pull-up resistor is unequal, and the resistance value of each pull-up resistor in described second group of pull-up resistor is equal.
3. direct current combination load system according to claim 2, it is characterized in that, the voltage of described external dc adjustable stabilized voltage supply is 28V, described first group of pull-up resistor comprises ten pull-up resistors, the resistance value of the first resistance is 285 Ω, the resistance value of the second resistance is 142.5 Ω, the resistance value of the 3rd resistance is 71.25 Ω, the resistance value of the 4th resistance is 35.6 Ω, the resistance value of the 5th resistance is 28.5 Ω, the resistance value of the 6th resistance is 14.25 Ω, the resistance value of the 7th resistance is 9.5 Ω, the resistance value of the 8th resistance is 4.75 Ω, the resistance value of the 9th resistance is 2.95 Ω, the resistance value of the tenth resistance is 1.52 Ω.
4. direct current combination load system according to claim 3, is characterized in that, described second group of pull-up resistor comprises four pull-up resistors, and the resistance value of each pull-up resistor is wherein: 0.75 Ω.
5. the direct current combination load system according to the arbitrary claim of Claims 1-4, it is characterized in that, described direct current combination load system also comprises electric cabinet (01) and load box (02), and described test positive pole, described test negative pole, described negative input, described electrode input end and described gauge tap are arranged on described electric cabinet (01); Described pull-up resistor is arranged in described load box (02), and described electric cabinet (01) and described load box (02) are electrically connected by cable.
6. direct current combination load system according to claim 5, is characterized in that, described gauge tap is toggle switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520539739.XU CN204758800U (en) | 2015-07-23 | 2015-07-23 | Direct current combination load system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520539739.XU CN204758800U (en) | 2015-07-23 | 2015-07-23 | Direct current combination load system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204758800U true CN204758800U (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520539739.XU Expired - Fee Related CN204758800U (en) | 2015-07-23 | 2015-07-23 | Direct current combination load system |
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| CN (1) | CN204758800U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271877A (en) * | 2017-06-13 | 2017-10-20 | 合肥雄川机械销售有限公司 | A kind of znr circuit test in parallel and logic control system |
| CN107907840A (en) * | 2017-12-20 | 2018-04-13 | 惠州市鑫晖源科技有限公司 | The power source loads test system of compatible polytypic |
| CN110187155A (en) * | 2019-06-27 | 2019-08-30 | 中国船舶电站设备有限公司 | Formula load device is pressed dry in a kind of direct current |
-
2015
- 2015-07-23 CN CN201520539739.XU patent/CN204758800U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271877A (en) * | 2017-06-13 | 2017-10-20 | 合肥雄川机械销售有限公司 | A kind of znr circuit test in parallel and logic control system |
| CN107907840A (en) * | 2017-12-20 | 2018-04-13 | 惠州市鑫晖源科技有限公司 | The power source loads test system of compatible polytypic |
| CN110187155A (en) * | 2019-06-27 | 2019-08-30 | 中国船舶电站设备有限公司 | Formula load device is pressed dry in a kind of direct current |
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| 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: 20151111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |