CN211905617U - Multi-channel testing device - Google Patents
Multi-channel testing device Download PDFInfo
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- CN211905617U CN211905617U CN202020112837.6U CN202020112837U CN211905617U CN 211905617 U CN211905617 U CN 211905617U CN 202020112837 U CN202020112837 U CN 202020112837U CN 211905617 U CN211905617 U CN 211905617U
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052802 copper Inorganic materials 0.000 claims abstract description 43
- 239000010949 copper Substances 0.000 claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 238000005070 sampling Methods 0.000 claims description 30
- 238000010586 diagram Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A multi-channel testing device is characterized in that the positive ends of DC/DC cabinets are sequentially connected in series to a positive bus through soft copper bars, the negative ends of the DC/DC cabinets are sequentially connected in series to a negative bus through the soft copper bars, so that a plurality of DC/DC cabinets can be connected in parallel to the positive bus and the negative bus through the soft copper bars, and when the DC/DC cabinets need to be additionally connected, the DC/DC cabinets which are connected with the positive bus and the negative bus can be connected through the soft copper bars, long positive buses and long negative buses do not need to be reserved in advance for capacity expansion requirements, cables do not need to be led out from the bottom of one DC/DC cabinet, and the problem that wires are easily worn and wasted in the traditional technical scheme is solved in a wire inlet mode at the bottom of the other DC/DC cabinet.
Description
Technical Field
The utility model belongs to the technical field of high-power rack, especially, relate to a multichannel testing arrangement.
Background
At present, a traditional battery test system comprises a DC/DC cabinet, the DC/DC cabinet is connected with a battery pack to test the battery pack, because the DC/DC cabinet has limited channels, in order to test a plurality of battery packs simultaneously, a positive bus and a negative bus are commonly used to connect a plurality of DC/DC cabinets, the DC/DC cabinets are connected with the DC/DC cabinet through cables, during connection, wires are led out from the bottom of one DC/DC cabinet and led in from the bottom of one DC/DC cabinet, a large amount of wires are wasted by adopting the mode, and the wires are easy to wear.
Therefore, the problems that the wire is easy to wear and the wire is wasted exist in the traditional technical scheme.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a multichannel testing arrangement aims at solving the problem that the wire rod that exists easily weares and wears and extravagant wire rod among the traditional technical scheme.
The utility model discloses a first aspect of the embodiment provides a multichannel testing arrangement, multichannel testing arrangement includes: the testing device comprises a plurality of soft copper bars and at least one DC/DC cabinet for testing electronic devices, wherein the positive terminal of each DC/DC cabinet is sequentially connected in series to a positive bus through the soft copper bars, and the negative terminal of each DC/DC cabinet is sequentially connected in series to a negative bus through the soft copper bars.
In one embodiment, the casing of the DC/DC cabinet is provided with two knock-out holes for shielding two pairs of positive and negative terminals, and the two knock-out holes are respectively located on two opposite side walls of the casing.
In one embodiment, the two knockout holes on one of the DC/DC cabinets are diametrically opposed.
In one embodiment, the positive terminal and the negative terminal of the DC/DC cabinet are hard copper bars.
In one embodiment, the connection of each soft copper bar is a detachable connection.
In one embodiment, at least one screw hole is respectively formed at two ends of the soft copper bar, and the soft copper bar is fixed to the positive bus or the negative bus or fixed to a positive end or a negative end of the DC/DC cabinet through screws.
In one embodiment, the alternating current power supply further comprises an AC/DC cabinet, an input end of the AC/DC cabinet is connected with alternating current, a positive output end of the AC/DC cabinet is connected with the positive bus, a negative output end of the AC/DC cabinet is connected with the negative bus, and the AC/DC cabinet is used for converting the alternating current into direct current and outputting the direct current to the positive bus and the negative bus.
In one embodiment, the multichannel testing device further comprises a transformer cabinet, wherein an input end of the transformer cabinet is connected with an external power supply, an output end of the transformer cabinet is connected with an input end of the AC/DC cabinet, and the transformer cabinet is used for converting commercial power of the external power supply into target alternating current.
In one embodiment, the electronic device is a battery, and the DC/DC cabinet further comprises:
a control circuit;
the input end of the DC-DC conversion circuit is connected with the positive bus and the negative bus, the control end of the DC-DC conversion circuit is connected with the control circuit, and the DC-DC conversion circuit is used for converting direct current of the positive bus and the negative bus into target direct current under the control of the control circuit;
the output voltage sampling circuit is connected to the output end of the DC-DC conversion circuit and is used for collecting target direct current output by the DC-DC conversion circuit;
the battery sampling circuit is connected to two ends of the battery and is used for collecting the battery voltage of the battery;
the first switch and the second switch, the first end of the first switch with the positive pole of the output end of the DC-DC conversion circuit and the first end of the output voltage sampling circuit are connected, the second end of the first switch with the positive pole of the battery and the first end of the battery sampling circuit are connected, the first end of the second switch with the negative pole of the output end of the DC-DC conversion circuit and the second end of the output voltage sampling circuit are connected, the second end of the second switch with the negative pole of the battery and the second end of the battery sampling circuit are connected.
In one embodiment, the DC/DC cabinet further comprises a tank circuit connected to an output of the DC-DC conversion circuit.
According to the multichannel testing device, the positive ends of the DC/DC cabinets are sequentially connected in series to the positive bus through the soft copper bars, the negative ends of the DC/DC cabinets are sequentially connected in series to the negative bus through the soft copper bars, so that the plurality of DC/DC cabinets can be connected in parallel to the positive bus and the negative bus through the soft copper bars, and when the DC/DC cabinets are additionally connected, the DC/DC cabinets which are connected with the positive bus and the negative bus can be connected through the soft copper bars, long positive buses and long negative buses do not need to be reserved in advance for capacity expansion requirements, cables do not need to be led out from the bottom of one DC/DC cabinet, and cables are led in from the bottom of the other cabinet in an incoming line mode, so that the problems that wires are easily worn and wasted in the traditional technical scheme are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a multi-channel testing apparatus according to an embodiment of the present invention;
FIG. 2 is a left side view and a right side view of a DC/DC cabinet in the multi-channel testing apparatus shown in FIG. 1;
fig. 3 is another schematic structural diagram of a multi-channel testing device according to an embodiment of the present invention;
fig. 4 is another schematic structural diagram of a multi-channel testing device according to an embodiment of the present invention;
FIG. 5 is an exemplary circuit schematic of a DC/DC cabinet in the multi-channel test apparatus shown in FIG. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a schematic structural diagram of a multi-channel testing device according to a first aspect of the embodiment of the present invention is shown, for convenience of description, only the parts related to the embodiment are shown, and detailed descriptions are as follows:
in the multi-channel testing apparatus of the present embodiment, the multi-channel testing apparatus includes: the testing device comprises a plurality of soft copper bars 20 and at least one DC/DC cabinet 110 for testing electronic devices, wherein the positive end of each DC/DC cabinet 110 is sequentially connected in series with a positive bus 11 through the soft copper bars 20, and the negative end of each DC/DC cabinet 110 is sequentially connected in series with a negative bus 12 through the soft copper bars 20.
It should be understood that the electronic device may be a battery, a battery pack, a battery module, a battery pack, etc., wherein the battery pack is an assembled battery that connects a plurality of individual battery modules in series-parallel. The positive bus 11 and the negative bus 12 are a DC bus 10, and the positive bus 11 and the negative bus 12 are used for accessing DC power, wherein the positive bus 11 is used for accessing positive DC power, and the negative bus 12 is used for accessing negative DC power, optionally, the other ends of the positive bus 11 and the negative bus 12 may be connected to a DC power supply or the like to output DC power to each DC/DC cabinet 110.
It should be understood that one DC/DC cabinet 110 can test a plurality of electronic devices simultaneously according to the number of channels per se, and a larger number of electronic devices can be tested simultaneously by connecting a plurality of DC/DC cabinets 110 in parallel, each DC/DC cabinet 110 in this embodiment is connected to the positive bus 11 and the negative bus 10, the DC/DC cabinet 110 includes a DC/DC conversion circuit, and the rest is set according to the detection requirements of the electronic devices, the multi-channel testing apparatus of this embodiment is intended to provide a scalable multi-channel testing apparatus structure, which is applicable to all DC/DC cabinets 110 for detecting electronic devices, and the specific circuit of the DC/DC cabinet 110 is not limited.
It should be understood that when the multi-channel test apparatus includes N parallel DC/DC cabinets 110, the positive end of the first DC/DC cabinet 110 is connected to the positive bus 11 through a soft copper bar 20, the negative end of the first DC/DC cabinet 110 is connected to the negative bus 12 through a soft copper bar 20, the positive end of the second DC/DC cabinet 110 is connected to the positive end of the first DC/DC cabinet 110 through a soft copper bar 20, the negative end of the second DC/DC cabinet 110 is connected to the negative end of the first DC/DC cabinet 110 through a soft copper bar 20, the positive end of the ith DC/DC cabinet 110 is connected to the positive end of the (i-1) th DC/DC cabinet 110 through a soft copper bar 20, the negative end of the ith DC/DC cabinet 110 is connected to the negative end of the (i-1) th DC/DC cabinet 110 through a soft copper bar 20, wherein i is more than or equal to 2 and less than or equal to N, and i and N are integers.
In the multi-channel testing device in the embodiment, the positive ends of the DC/DC cabinets 110 are sequentially connected in series to the positive bus 11 through the soft copper bars 20, the negative ends of the DC/DC cabinets 110 are sequentially connected in series to the negative bus 12 through the soft copper bars 20, so that a plurality of DC/DC cabinets 110 can be coupled to the positive and negative bus bars 11 and 12 through the flexible copper bars 20, and when additional access to the DC/DC cabinets 110 is required, the flexible copper bars 20 are connected to the DC/DC cabinet 110 connected with the positive bus 11 and the negative bus 12, so that the longer positive bus 11 and the longer negative bus 12 do not need to be reserved in advance for capacity expansion, cables do not need to be led out from the bottom of one DC/DC cabinet 110, and wires are led in from the bottom of the other DC/DC cabinet 110, and the problems that wires are easy to wear and waste in the traditional technical scheme are solved.
Referring to fig. 2, in one embodiment, the method includes: the casing of the DC/DC cabinet 110 is provided with two knock-out holes 31 and 32 for shielding the two pairs of positive and negative terminals, and the two knock-out holes 31 and 32 are respectively located on two opposite side walls of the casing. Optionally, when the knock-out hole 31 is disposed on the left side wall of the housing of the DC/DC cabinet 110, the knock-out hole 32 is disposed on the right side wall of the housing of the DC/DC cabinet 110.
It should be understood that two pairs of positive terminals are located across the positive terminals of the DC/DC cabinet 110, and two pairs of negative terminals are located across the negative terminals of the DC/DC cabinet 110.
It should be understood that the knock-out hole 31 and the knock-out hole 32 in the present embodiment are formed by cutting off most of the hole edges and leaving only some adhesive portions, and the DC/DC cabinet 110 in the present embodiment is provided with the knock-out hole 31 and the knock-out hole 32 through its housing, so that when the DC/DC cabinet 110 needs to be accessed into the multi-channel testing apparatus for work, the DC/DC cabinet 110 can be quickly accessed into the multi-channel testing apparatus through the knock-out hole 31 and the knock-out hole 32, thereby achieving the requirement of capacity expansion.
In one embodiment, the knockout hole 31 and the knockout hole 32 on the DC/DC cabinet are in positive opposition
In one embodiment, the height of the knockout hole 31 and the height of the knockout hole 32 are greater than or equal to the pitch of the positive terminal and the negative terminal of the DC/DC cabinet 110 so that the pair of positive terminal and the negative terminal are completely exposed.
In one embodiment, the positive and negative terminals of the DC/DC cabinet 110 are stiff copper bars.
Optionally, in other embodiments, the positive terminals of the adjacent DC/DC cabinets 110 may be connected by a hard copper bar, and the negative terminals of the adjacent DC/DC cabinets 110 may be connected by a hard copper bar.
In one embodiment, the connection of the soft copper bars 20 is a detachable connection. Optionally, the flexible copper bars 20 may be connected between the DC/DC cabinets 110 by means of a buckle, a screw connection, or the like, so that the flexible copper bars 20 may be detachably connected to the DC/DC cabinets 110, and when the DC/DC cabinets 110 need to quit working due to a fault or other reasons, the DC/DC cabinets 110 may be detached.
In one embodiment, at least one screw hole is formed at each end of the soft copper row 20, and the soft copper row 20 is fixed to the positive bus bar 11 or the negative bus bar 12, or to the positive end or the negative end of the DC/DC cabinet 110 by screws.
Referring to fig. 3, in an embodiment, the AC/DC cabinet further includes an AC/DC cabinet 200, an input end of the AC/DC cabinet 200 is connected to AC power, a positive output end of the AC/DC cabinet 200 is connected to the positive bus 11, a negative output end of the AC/DC cabinet 200 is connected to the negative bus 12, and the AC/DC cabinet 200 is configured to convert the AC power into DC power and output the DC power to the positive bus 11 and the negative bus 12. It should be understood that AC/DC cabinet 200 is a high power cabinet that includes AC/DC conversion circuitry.
Referring to fig. 4, in an embodiment, the power supply further includes a transformer 300 cabinet, an input end of the transformer 300 cabinet is connected to the external power source 40, an output end of the transformer 300 cabinet is connected to an input end of the AC/DC cabinet 200, and the transformer 300 cabinet is used for converting the commercial power of the external power source 40 into the target alternating current.
It should be understood that the external power source 40 may be an ac power source, a power grid, etc.
Referring to fig. 5, in one embodiment, the electronic device is a battery 50, and the DC/DC cabinet 110 further includes: a control circuit 111, a DC-DC conversion circuit 112, an output voltage sampling circuit 113, a battery sampling circuit 114, a first switch 115 and a second switch 116, wherein the input end of the DC-DC conversion circuit 112 is connected with the positive bus 11 and the negative bus 12, the control end of the DC-DC conversion circuit 112 is connected with the control circuit 111, the output voltage sampling circuit 113 is connected with the output end of the DC-DC conversion circuit 112, the battery sampling circuit 114 is connected with two ends of the battery 50, the first end of the first switch 115 is connected with the positive electrode of the output end of the DC-DC conversion circuit 112 and the first end of the output voltage sampling circuit 113, the second end of the first switch 115 is connected with the positive electrode of the battery 50 and the first end of the battery sampling circuit 114, the first end of the second switch 116 is connected with the negative electrode of the output end of the DC-DC conversion circuit 112 and the second end of the output voltage sampling circuit 113, a second terminal of the second switch 116 is connected to the negative terminal of the battery 50 and a second terminal of the battery sampling circuit 114; the DC-DC conversion circuit 112 is configured to convert the direct current of the positive bus 11 and the negative bus 12 into a target direct current under the control of the control circuit 111; the output voltage sampling circuit 113 is used for collecting the target direct current output by the DC-DC conversion circuit 112; the battery sampling circuit 114 is used to collect the voltage of the battery 50.
It should be understood that the control circuit 111 in the present embodiment may be constituted by an MCU; the DC-DC conversion circuit 112 may be constituted by a rectifier bridge; the output voltage sampling circuit 113 may be constituted by a sampling resistor, a voltmeter, a voltage sensor, or the like; the battery sampling circuit 114 may be composed of a sampling resistor, a voltmeter, or a voltage sensor; the first switch 115 and the second switch 116 may be configured as mechanical switches or controllable electronic switches, such as contactors, breakers, switching tubes, and the like.
One principle of the DC/DC cabinet 110 in this embodiment is as follows, when the DC/DC cabinet 110 in this embodiment is used to detect the capacity of the battery 50, the DC/DC cabinet 110 in this embodiment may first close the first switch 115 and the second switch 116, then obtain the output voltage of the DC-DC conversion circuit 112 through the output voltage sampling circuit 113, obtain the voltage of the battery 50 through the battery sampling circuit 114, when the voltage of the battery 50 is equal to the output voltage of the DC-DC conversion circuit 112, open the first switch 115 and the second switch 116 and count time, and calculate the capacity of the battery 50 by testing the discharge time and the discharge voltage of the battery 50.
Optionally, the DC/DC rack 110 further includes a plurality of control circuits 111, a DC-DC conversion circuit 112, an output voltage sampling circuit 113, a battery sampling circuit 114, a first switch 115, and a second switch 116, that is, one DC/DC rack 110 can test a plurality of batteries 50 at the same time.
Referring to fig. 5, in one embodiment, the DC/DC cabinet 110 further includes a tank circuit 117, and the tank circuit 117 is connected to the output terminal of the DC-DC conversion circuit 112. It should be understood that the tank circuit 117 may be formed by a plurality of parallel-connected tank elements, such as tank capacitors.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A multi-channel test apparatus, comprising: the testing device comprises a plurality of soft copper bars and at least one DC/DC cabinet for testing electronic devices, wherein the positive terminal of each DC/DC cabinet is sequentially connected in series to a positive bus through the soft copper bars, and the negative terminal of each DC/DC cabinet is sequentially connected in series to a negative bus through the soft copper bars.
2. The multi-channel test device of claim 1, comprising: the shell of the DC/DC cabinet is provided with two knock-off holes for shielding two pairs of positive terminals and negative terminals, and the two knock-off holes are respectively positioned on two oppositely arranged side walls of the shell.
3. The multi-channel test device of claim 2, comprising: the two knockout holes on one of the DC/DC cabinets are diametrically opposed.
4. The multi-channel test device of claim 1, wherein the positive and negative terminals of the DC/DC cabinet are stiff copper bars.
5. The multi-channel testing device of claim 1, wherein the connection of each of the copper flex banks is a detachable connection.
6. The multi-channel testing device of claim 5, wherein at least one screw hole is formed at each end of the flexible copper bar, and the flexible copper bar is fixed to the positive bus bar or the negative bus bar or the positive end or the negative end of the DC/DC cabinet through screws.
7. The multi-channel testing device as claimed in any one of claims 1 to 6, further comprising an AC/DC cabinet, wherein an input end of the AC/DC cabinet is connected with alternating current, a positive output end of the AC/DC cabinet is connected with the positive bus, a negative output end of the AC/DC cabinet is connected with the negative bus, and the AC/DC cabinet is used for converting the alternating current into direct current and outputting the direct current to the positive bus and the negative bus.
8. The multi-channel testing device of claim 7, further comprising a transformer cabinet, wherein an input terminal of the transformer cabinet is connected to an external power source, and an output terminal of the transformer cabinet is connected to an input terminal of the AC/DC cabinet, and the transformer cabinet is configured to convert a commercial power of the external power source into a target alternating current.
9. The multi-channel test device of any one of claims 1-6, wherein the electronic device is a battery, the DC/DC cabinet further comprising:
a control circuit;
the input end of the DC-DC conversion circuit is connected with the positive bus and the negative bus, the control end of the DC-DC conversion circuit is connected with the control circuit, and the DC-DC conversion circuit is used for converting direct current of the positive bus and the negative bus into target direct current under the control of the control circuit;
the output voltage sampling circuit is connected to the output end of the DC-DC conversion circuit and is used for collecting target direct current output by the DC-DC conversion circuit;
the battery sampling circuit is connected to two ends of the battery and is used for collecting the battery voltage of the battery;
the first switch and the second switch, the first end of the first switch with the positive pole of the output end of the DC-DC conversion circuit and the first end of the output voltage sampling circuit are connected, the second end of the first switch with the positive pole of the battery and the first end of the battery sampling circuit are connected, the first end of the second switch with the negative pole of the output end of the DC-DC conversion circuit and the second end of the output voltage sampling circuit are connected, the second end of the second switch with the negative pole of the battery and the second end of the battery sampling circuit are connected.
10. The multi-channel test device of claim 9, wherein the DC/DC cabinet further comprises a tank circuit coupled to an output of the DC-DC conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020112837.6U CN211905617U (en) | 2020-01-17 | 2020-01-17 | Multi-channel testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020112837.6U CN211905617U (en) | 2020-01-17 | 2020-01-17 | Multi-channel testing device |
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| CN211905617U true CN211905617U (en) | 2020-11-10 |
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| CN202020112837.6U Active CN211905617U (en) | 2020-01-17 | 2020-01-17 | Multi-channel testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763921A (en) * | 2020-12-23 | 2021-05-07 | ***电子科技（镇江）有限公司 | Automatic test system and method for battery pack |
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- 2020-01-17 CN CN202020112837.6U patent/CN211905617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763921A (en) * | 2020-12-23 | 2021-05-07 | ***电子科技（镇江）有限公司 | Automatic test system and method for battery pack |
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Address after: 518000 1903a, block a, Zhongguan Times Square, 4168 Liuxian Avenue, Pingshan community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee after: REPOWER TECHNOLOGY Co.,Ltd. Address before: 4 / F, No.2 factory building, tongfuyu industrial town, Liuxian Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee before: REPOWER TECHNOLOGY Co.,Ltd. |
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Address after: 518000 floor 11, building A3, Nanshan Zhiyuan, No. 1001, Xueyuan Avenue, Changyuan community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee after: REPOWER TECHNOLOGY Co.,Ltd. Address before: 518000 1903a, block a, Zhongguan Times Square, 4168 Liuxian Avenue, Pingshan community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee before: REPOWER TECHNOLOGY Co.,Ltd. |