CN202735493U - Relay loop multiplex circuit for direct-current voltage acquisition of battery inspection - Google Patents
Relay loop multiplex circuit for direct-current voltage acquisition of battery inspection Download PDFInfo
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- CN202735493U CN202735493U CN 201220373379 CN201220373379U CN202735493U CN 202735493 U CN202735493 U CN 202735493U CN 201220373379 CN201220373379 CN 201220373379 CN 201220373379 U CN201220373379 U CN 201220373379U CN 202735493 U CN202735493 U CN 202735493U
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Abstract
The utility model discloses a relay loop multiplex circuit for a direct-current voltage acquisition of a battery inspection. The circuit comprises a plurality of relays, the first and third pins of each relay are connected with an operating voltage, and the second and fourth pins of each relay are connected with the output terminal of a decoder through a diode; and each relay comprises two output pins which are connected with two batteries of a storage battery set respectively, wherein the storage battery set comprises a plurality of batteries connected in series, the positive end of a first battery and the negative end of a second battery are connected and then are connected to the same output pin of a first relay, and the analogical connection is performed in sequence. The circuit solves problems that in a traditional battery inspection, component waste is generated as each battery needs a corresponding solid-state relay and a battery inspection module is large in size. With the circuit, the number of the solid-state relays required is greatly reduced when gating the same number of batteries, and the problems that component waste is generated and the battery inspection module is large in size are effectively overcome.
Description
Technical field
It is multiplexing that the utility model relates to the loop of DC voltage collecting part solid-state relay in the accumulator voltage monitoring system of the direct current cabinet institute adapted in the electric substation, belongs to the electric power monitoring technical field.
Background technology
In the systems such as communication, electric power and microwave, battery pack is important energy storage device, and it can guarantee the uninterrupted power supply of communication facilities and power-equipment.Whether the accumulator running status is normal, directly affects the operation of reliability, security and the accurate stable of various device in the application.If battery pack is used in management that can not be appropriate, such as overcharge, the phenomenons such as overdischarge and cell degradation, all can cause battery to damage or battery capacity sharply descends.The battery inspection instrument system can in time go the rounds to detect to electric battery reliably, detects various real-time running datas and the state of accumulator, automatically detects accumulator failure and sends warning.
Wherein, the voltage of series-connected batteries is generally higher, for voltage detecting has been brought difficulty.A kind of effective, feasible voltage detecting scheme has been proposed for this reason: single battery voltage is gathered, the every batteries of battery pack is carried out cycle detection successively.The voltage of system acquisition cell batteries is relative voltage, for the accuracy that guarantees voltage detecting and the work that does not affect system, adopting decoding scheme chip (seeing Fig. 5, Fig. 6) to carry out cell selects, be that the solid-state relay (see figure 1) is isolated by light coupling relay, enter successively A/D converter by the Single-chip Controlling accumulator voltage, realize the voltage polling function of battery pack.Because the load capacity of light coupling relay is high and volume is little, thereby has solved the isolation between forceful electric power and light current, and make system can realize voltage detecting to the more series-connected batteries of number of batteries.
Solid-state relay (SSR) is a kind of noncontacting switch device that adopts solid-state components to be assembled into, it is a kind of novel electron switch of controlling high-power alternating current-direct current load with little electric signal, the outstanding advantages such as have that volume is little, no-spark, noiselessness, pollution-free, fast without electromagnetic interference (EMI), switching speed, good stability, reliability are high, fully isolation of output input, antijamming capability are strong, and have antidetonation, protection against the tide, corrosion-resistant and anti-riot ability.In addition, the interface of it and digital integrated circuit, operational amplifier and the computing machines such as TTL, CMOS is all very simple, and this is that electromagnetic type relay is incomparable.
Solid-state relay can be divided into interchange (AC-SSR) and direct current (DC-SSR) two classes by the load power source type, and that use among the present invention is dc solid-state relay DC-SSR, such as Fig. 1.Once-through type SSR mostly is four end type SSR, and four end types have referred to two input ends, two output terminals.This is the multi-purpose switch that developed recently gets up, and its theory diagram such as Fig. 2, input end only require very little control electric current, and output is used for DC high-power control occasion, and Q is photoelectrical coupler among the figure, mainly is comprised of light emitting diode and phototriode two parts.It is that light emitting diode and light activated element are contained in the shell of a sealing, as input end, as output terminal, consists of photoelectrical coupler with the latter's lead-in wire with the former lead-in wire.Here photoelectrical coupler is for the coupling pulse signal, and when input low level, luminotron and photosensitive tube all end, and high level is got in output; When being input as high level, the luminotron conducting, photosensitive tube is saturated, output low level.Because input and output by light signal, realized isolation at circuit between the output input, so Q are again photoisolator.
Such as Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, the core devices that the accumulator sampling unit adopts is that hyperchannel is selected code translator 74HC154 and solid-state relay AQW214.Its mentality of designing is, the selection by two code translator 74HC154(code translators is by Single-chip Controlling) timesharing drives solid-state relay AQW214 successively, every batteries voltage in the accumulator selected and recommended on sampling bus IN+, the IN-.The accumulator quantity that native system can be patrolled and examined is not more than 20 joints, the corresponding solid-state relay AQW214 of the gating of every batteries, and solid-state relay AQW214 is equivalent to JKDi(i among Fig. 3≤19, i
Z), solid-state relay has 19, when moving in system, and gating successively.The gating of solid-state relay is realized by the Single-chip Controlling code translator.
The utility model content
Technical problem to be solved in the utility model provides a kind of relay circuit multiplex circuit of battery inspection, and every batteries needed components and parts waste and the bulky problem of battery inspection module that a corresponding solid-state relay causes during the solution conventional batteries was patrolled and examined.
For solving the problems of the technologies described above, the utility model provides a kind of relay circuit multiplex circuit for the collection of battery inspection DC voltage, it is characterized in that, comprise a plurality of relays, the input end of each relay comprises four pins, wherein the first, the 3rd pin connects the operating voltage of 5V, and the second, the 4th pin is connected to respectively the output terminal of code translator through a diode;
Each relay comprises two output pins, is connected with two batteries in the battery pack respectively,
Wherein, comprise the battery of multi-section serial in the battery pack, the negative terminal of the anode of first segment battery and second section battery is connected together, and is connected to the same output pin of first relay,
The negative terminal of the anode of second section battery and the 3rd batteries is connected together, and is connected to one of them output pin of second relay; The negative terminal of the anode of the 3rd batteries and the 4th batteries is connected together, and is connected to another output pin of described second relay, the like connect.
The positive pole of described diode is connected with the input end pin of relay, and negative pole is connected with described code translator.
Described relay is solid-state relay.
By the some actuating of relay in a plurality of relays of gating signal gating of code translator output.
Described code translator is connected with single-chip microcomputer.
The beneficial effect that the utility model reaches:
Circuit of the present utility model has solved components and parts waste and the bulky problem of battery inspection module that every batteries needs a corresponding solid-state relay to cause during conventional batteries is patrolled and examined, by this circuit, the battery of the same quantity of gating, the quantity of required solid-state relay greatly reduces, and has effectively solved waste and the bulky problem of battery inspection module of components and parts.
Description of drawings
Fig. 1 is the dc solid-state relay schematic diagram;
Fig. 2 is the dc solid-state relay fundamental diagram;
Fig. 3 is accumulator battery sampling unit schematic diagram;
Fig. 4 solid-state relay control gating sampling input schematic diagram;
Code translator relay gate fundamental diagram in Fig. 5 prior art;
Code translator relay gate fundamental diagram in Fig. 6 prior art;
Fig. 7 is solid-state relay input end of the present utility model loop principle of multiplexing figure;
Fig. 8 is accumulator battery sampling unit schematic diagram of the present utility model;
Fig. 9 is one of them code translator relay gate fundamental diagram;
Figure 10 is another code translator relay gate fundamental diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection domain of the present utility model with this.
Circuit of the prior art, because it is relative voltage that taking into account system gathers the voltage of cell batteries, for the accuracy that guarantees voltage detecting and the work that does not affect system, adopt solid-state relay to isolate, the corresponding solid-state relay AQW214 of every batteries, in the situation that 38 input ports are arranged, can connect 19 batteries series connection (for unified accumulator quantity at most, the present embodiment only describes take accumulator quantity as 19 joints), need 19 solid-state relay AQW214, solid-state relay AQW214 consumption is many, and the battery inspection module whole is long.
The utility model is by carrying out multiplexing method to solid-state relay input end loop, as shown in Figure 8, with above-mentioned situation, 20 input ports are being arranged, in the time of can connecing at most the series connection of 19 batteries, and in the situation that the battery tension sampling principle is identical and function realizes fully, the situation (such as Fig. 3) of 19 solid-state relays of the relative available technology adopting of the usage quantity of solid-state relay AQW214, can only adopt 10 solid-state relays (such as Fig. 8) in the present embodiment, quantity can greatly reduce, and has effectively solved waste and the bulky problem of battery inspection module of components and parts.
The below is introduced the principle of work of accumulator sampling unit, in order to narrate conveniently, represents j solid-state relay AQV214(j=1～19 with JKDj), represent i joint accumulator (i=0～18) with Bi.Because code translator 74HC154 has 16 gating ends, and charge capacity is 19 joints, thus select 2 code translator 74HC154, such as Fig. 9, shown in Figure 10, U1, U2.
The connection of U1 (74HC154) and AQW214 in the 1st collecting unit, method for designing is before seen Fig. 5, Fig. 6.The present invention sees Fig. 9, Figure 10.Suppose, the selection of code translator is respectively by 5.2,5.7 mouthfuls of controls of single-chip microcomputer, when 5.2 mouthfuls be low level, 5.7 mouthfuls when being high level, code translator U1 gating.When code translator U1 gating, by the high-low level of Single-chip Controlling 5.3-5.6 mouth, the truth table of pressing code translator U1 is gating Y0-Y8 successively.When the Y0 gating, see Figure 10, Y0 pin output low level, when Y0 is low level, as shown in Figure 7, with 2 of relay J KD01, the diode current flow that 4 pin link to each other, 2 of relay J KD01,4 pin are low level, 1 of relay J KD01,3 pin link to each other with 5V voltage by resistance, this moment 1,3 pin voltages are greater than 2,4 pin voltages, 1 and 2,3 and 4 simultaneously conductings, this moment relay J KD01 6,8 pin respectively with first segment accumulator B0+, B0 ﹣ joins, according to the principle of work of relay, 5 and 6,7 and 8 pin conductings this moment, JKD01-5 among Fig. 8 in the accumulator sampling unit, the closed conducting of JKD01-7, the first segment cell voltage is delivered on sampling bus IN+ and the IN-, and by the A/D Acquisition Circuit, the voltage of first segment battery is collected by single-chip microcomputer.In like manner can be pushed into the principle of other joint battery tension samplings.
The utility model and circuit before different are the multiplexing of solid-state relay input end, circuit is before seen Fig. 3, Fig. 4, positive and negative two ends BAT0+ and BAT0-such as the first segment battery access respectively 6 of first solid-state relay JKD01,8 ports, namely JKD01-5 and JKD01-7 are responsible for respectively the conducting of first segment battery BAT0-and BAT0+ among Fig. 3; In like manner, the conducting that the JKD02-5 that is connected by second solid-state relay JKD02 port and JKD02-7 are responsible for respectively the positive and negative two ends BAT1-of second section battery and BAT1+.The like, 19 batteries need 19 its conductings of Control altogether.Circuit of the present utility model is seen Fig. 7, shown in Figure 8.Accumulator series connection this moment, and end to end is connected together such as the anode B0+ of first segment battery and the negative terminal B1-of second section battery, from the same port input of first solid-state relay JKD01, i.e. and the simultaneously conducting of responsible B0+ and B1-of JKD01-7 among Fig. 8.For another example, the same port of second solid-state relay JKD02 of the anode B1+ of second section battery and the negative terminal B2-of the 3rd batteries access, namely JKD02-5 is responsible for the conducting of B1+ and B2-simultaneously among Fig. 8; The same input port of second solid-state relay JKD02 of the anode B2+ of the 3rd batteries and the negative terminal B3-of the 4th batteries access, namely JKD02-7 is responsible for the conducting of B2+ and B3-simultaneously among Fig. 8.The like, 19 batteries need 10 relays altogether, thereby have saved the consumption of solid-state relay AQW214, have also reduced its shared volume.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and distortion, these improvement and distortion also should be considered as protection domain of the present utility model.
Claims (5)
1. one kind is used for the relay circuit multiplex circuit that the battery inspection DC voltage gathers, it is characterized in that, comprise a plurality of relays, the input end of each relay comprises four pins, wherein the first, the 3rd pin connects the operating voltage of 5V, and the second, the 4th pin is connected to respectively the output terminal of code translator through a diode;
Each relay comprises two output pins, is connected with two batteries in the battery pack respectively,
Wherein, comprise the battery of multi-section serial in the battery pack, the negative terminal of the anode of first segment battery and second section battery is connected together, and is connected to the same output pin of first relay,
The negative terminal of the anode of second section battery and the 3rd batteries is connected together, and is connected to one of them output pin of second relay; The negative terminal of the anode of the 3rd batteries and the 4th batteries is connected together, and is connected to another output pin of described second relay, the like connect.
2. the relay circuit multiplex circuit for the collection of battery inspection DC voltage according to claim 1 is characterized in that, the positive pole of described diode is connected with the input end pin of relay, and negative pole is connected with described code translator.
3. the relay circuit multiplex circuit for the collection of battery inspection DC voltage according to claim 1 is characterized in that, described relay is solid-state relay.
4. the relay circuit multiplex circuit for the collection of battery inspection DC voltage according to claim 1 is characterized in that, by the some actuating of relay in a plurality of relays of gating signal gating of code translator output.
5. the relay circuit multiplex circuit for the collection of battery inspection DC voltage according to claim 4 is characterized in that, described code translator is connected with single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220373379 CN202735493U (en) | 2012-07-31 | 2012-07-31 | Relay loop multiplex circuit for direct-current voltage acquisition of battery inspection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220373379 CN202735493U (en) | 2012-07-31 | 2012-07-31 | Relay loop multiplex circuit for direct-current voltage acquisition of battery inspection |
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| CN202735493U true CN202735493U (en) | 2013-02-13 |
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| CN 201220373379 Expired - Lifetime CN202735493U (en) | 2012-07-31 | 2012-07-31 | Relay loop multiplex circuit for direct-current voltage acquisition of battery inspection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137167A (en) * | 2015-09-28 | 2015-12-09 | 张家港市泓溢电源科技有限公司 | Lead-acid battery voltage inspection scanning system |
| CN114035063A (en) * | 2021-12-13 | 2022-02-11 | 中国核动力研究设计院 | Voltage monitoring device for reactor storage battery pack |
| CN114362317A (en) * | 2022-01-14 | 2022-04-15 | 上海空间电源研究所 | Single bus type acquisition and inspection type monitoring system of multiple storage battery packs |
-
2012
- 2012-07-31 CN CN 201220373379 patent/CN202735493U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137167A (en) * | 2015-09-28 | 2015-12-09 | 张家港市泓溢电源科技有限公司 | Lead-acid battery voltage inspection scanning system |
| CN114035063A (en) * | 2021-12-13 | 2022-02-11 | 中国核动力研究设计院 | Voltage monitoring device for reactor storage battery pack |
| CN114035063B (en) * | 2021-12-13 | 2024-04-30 | 中国核动力研究设计院 | Voltage monitoring device for reactor storage battery pack |
| CN114362317A (en) * | 2022-01-14 | 2022-04-15 | 上海空间电源研究所 | Single bus type acquisition and inspection type monitoring system of multiple storage battery packs |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |