CN207966460U - A kind of LED display for hiding setting based on stream unit - Google Patents
A kind of LED display for hiding setting based on stream unit Download PDFInfo
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- CN207966460U CN207966460U CN201820232933.7U CN201820232933U CN207966460U CN 207966460 U CN207966460 U CN 207966460U CN 201820232933 U CN201820232933 U CN 201820232933U CN 207966460 U CN207966460 U CN 207966460U
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- stream unit
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- bus bar
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Abstract
The utility model is related to a kind of LED displays for hiding setting based on stream unit, including pinboard, the reception card for being transmitted with computer data there are two power outlet, two power modules and two is set on pinboard, the input terminal of two power outlets is electrically connected with the cities Liang Ge respectively, the output end of two power outlets is electrically connected with the upper end letter ox input side of two power modules respectively, and the output end of two power modules is arranged by conversion terminal to be connect with the mainboard of LED display；The inside of power module is equipped with substrate, is arranged on substrate and flows unit；The inner wall of pinboard is additionally provided with the chamber resettling of the output end current equalizing bus bar for installing the stream unit.Current equalizing bus bar is accommodated in hot-face insulation wire casing by being arranged flow equalizing circuit inside power module, reduces the duty ratio of current equalizing bus bar, ensure that the safety of other electrical equipments by the utility model；Power detecting unit is set, staff's real time monitoring can be made to the operating status of power module.
Description
Technical field
The utility model is related to arrive LED display technical field, more particularly to a kind of hidden based on stream unit is arranged
LED display.
Background technology
As the application of current LED display is more and more extensive, small clearance display screen demand is also more and more, turns in setting
Fishplate bar was all that with current equalizer or stream twisted wire is inserted into to plug on pinboard in the past, since line is longer when installing power module
And it is thin, easily broken crushing also unsightly takes up space, and reconnects two power supplys, but does not have power detecting function, once power supply
Module breaks down, then directly influences whether the operation of LED display；A plurality of current equalizer forms flow equalizing circuit, and flow equalizing circuit is
One is flowed unit, and two power modules correspond to two and flow unit, and it is independent that the two, which flow unit all, and 220V power supplies are arrived
Power module, therefore, the prior art is defective, needs to improve.
Utility model content
The utility model provides a kind of LED display for hiding setting based on stream unit, the above problem of solution.
To solve the above problems, the technical scheme that the utility model is provided is as follows：
A kind of LED display for hiding setting based on stream unit, including pinboard install two electricity in switching plate surface
The reception card that supply socket, two power modules and two are used to transmit with computer data, the input terminal of two power outlets
Connect respectively with two mains supply points, the output ends of two power outlets by forceful electric power line respectively with two power supplys
The upper end letter ox input side of module is electrically connected, and the output end of two power modules is shown by conversion terminal row with LED
The mainboard of screen connects；The inside of two power modules is equipped with substrate, is arranged on substrate and flows unit；The pinboard
Inner wall is additionally provided with the chamber resettling of the output end current equalizing bus bar for housing the stream unit, and the chamber resettling is additionally provided with resistance to
Fire insulation wire casing；The upper end of two power modules is additionally provided with power detecting unit and GND grounding pins, the signal of the power module
Output end is electrically connected through the power detecting unit with the signal acquisition terminal for receiving card.
Preferably, it is equipped with flow equalizing circuit in the stream unit, the flow equalizing circuit includes microcontroller, variable resistance
R1, variable resistance R2, rear class amplifying circuit, differential amplifier circuit, resistance R3, the output current end V1 of power module and stream is single
The outlet side current equalizing bus bar end I1 of member, the both ends of the variable resistance R2 are connect with the both ends of reference voltage V ref, described variable
One end of resistance R1 is connect with the anode of the reference voltage V ref, and the other end of the variable resistance R1 is put by the rear class
Big circuit is electrically connected with one end of the differential amplifier circuit, and the other end of the differential amplifier circuit passes through one resistance R3 of parallel connection
It is electrically connected again with the outlet side current equalizing bus bar end I1 of the output current end V1 of power module and stream unit.
Further, the input terminal of the current equalizing bus bar end I1 is additionally provided with the first electric switch, first electric switch with it is described
Microcontroller is electrically connected.
Further, first electric switch is metal-oxide-semiconductor.
Further, first electric switch is relay switch.
Preferably, the outside of the stream unit is also enclosed with shielded layer.
Preferably, the power detecting unit includes power detecting input terminal U1, current-limiting resistance R6, light emitting diode VD1
With the second electric switch K2 and be sequentially connected in series.
Preferably, the reception card is that A9S types receive card.
Advantageous effect compared with the existing technology is that using the above scheme, the utility model is by setting flow equalizing circuit
It sets inside power module, current equalizing bus bar is accommodated in hot-face insulation wire casing, reduce the duty ratio of current equalizing bus bar, equally will
Power cord and control line are respectively provided with and in chamber resettling, not only ensure that the safety of other electrical equipments, and it is additional to solve current equalizer
The problem of taking up space cancels the mode that general power supply factory directly uses current equalizing bus bar or twisted wire；By the way that power detecting is arranged
The received card of unit is connect with computer control software, and staff's real time monitoring can be made to the operating status of power module, it is known that
Road is which power module is broken, and nor affects on display screen normal work；By the way that the first electric switch is arranged, work as power module failure
When, the connection with current equalizing bus bar is cut off, easy to repair or replacement power module is efficient and convenient；By being arranged outside stream unit
Shielded layer can reduce interference.
Description of the drawings
Illustrate embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment or the prior art
The required attached drawing used is briefly described in description, it is clear that, the accompanying drawings in the following description is only the one of utility model
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the LED display structural schematic diagram that setting is hidden based on stream unit of the utility model；
Fig. 2 is the stream unit electrical schematic diagram of the utility model；
Fig. 3 is the power detecting unit electrical schematic diagram of the utility model.
Shown in the above legend：1, pinboard 2, power outlet 3, power module 4, reception card.
Specific implementation mode
For the ease of understanding the utility model, in the following with reference to the drawings and specific embodiments, the utility model is carried out more detailed
Thin explanation.The preferred embodiment of the utility model is given in attached drawing.But the utility model can be with many different
Form is realized, however it is not limited to this specification described embodiment.Make to this on the contrary, purpose of providing these embodiments is
The understanding of the disclosure of utility model is more thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term used in this specification " fixation ", " integrated molding ",
For illustrative purposes only, the similar unit of structure is to identical label in the figure for "left", "right" and similar statement
Mark.
Unless otherwise defined, technical and scientific term all used in this specification and the skill for belonging to the utility model
The normally understood meaning of technical staff in art field is identical.Art used in the description of the utility model in this specification
Language, which is only for the purpose of describing specific embodiments, is not intended to limitation the utility model.
As shown in Figure 1, the embodiments of the present invention 1 are：
A kind of LED display for hiding setting based on stream unit, including pinboard 1, two are installed on 1 surface of pinboard
The reception cards 4 of 2, two power modules 3 of power outlet and two for being transmitted with computer data, two power outlets 2
Input terminal is connect with two mains supply points respectively, the output ends of two power outlets 2 by forceful electric power line respectively with two
The upper end letter ox input side of the power module 3 is electrically connected, and the output end of two power modules 3 is arranged by conversion terminal
It is connect with the mainboard of LED display；The inside of two power modules 3 is equipped with substrate, is arranged on substrate and flows unit；Institute
The inner wall for stating pinboard 1 is additionally provided with the chamber resettling of the output end current equalizing bus bar for housing the stream unit, described accommodating
Chamber is additionally provided with hot-face insulation wire casing；The upper end of two power modules 3 is additionally provided with power detecting unit and GND grounding pins, described
The signal output end of power module 3 is electrically connected through the power detecting unit with the signal acquisition terminal for receiving card 4.
Further, power detecting unit is for detecting whether power module 3 works normally, i.e., whether output end has output electricity
Pressure；Power detecting unit can be PSM-D21 type power supply supervision units, can also be APSM-JY type DC power supply monitoring units；Power supply
The signal input part of detection unit is electrically connected with the signal output end of power module 3, and the output end for acquiring power module 3 is
No to have output voltage, the signal output end of power detecting unit is electrically connected with the signal acquisition terminal for receiving card 4, for that will collect
Voltage signal be uploaded on computer by receiver, so that staff monitors the operating status of power module 3 in time.
Further, conversion terminal row is that direct current connects plug connector；Forceful electric power line can also install with inside pinboard, it is more beautiful
It sees, reduces and occupy pinboard space；The upper output terminal of two power modules connect plug connector by control line with direct current
It connects, the LED module mainboard inside subsequent LED display is connecting plug connector inserting with direct current, and wherein control line can also be installed
In chamber resettling, required power cord, control line or All other routes on pinboard can be installed and housing in pinboard
In chamber；The input terminal of power module is AC 220/380V, and output end enters LED display for 3.8-5V and gives LED module mainboard
Power supply.
Preferably, as shown in Fig. 2, it is described stream unit in be equipped with flow equalizing circuit, the flow equalizing circuit include microcontroller,
The output current end V1 of variable resistance R1, variable resistance R2, rear class amplifying circuit, differential amplifier circuit, resistance R3, power module
The outlet side current equalizing bus bar end I1 of unit is flowed, the both ends of the variable resistance R2 are connect with the both ends of reference voltage V ref,
One end of the variable resistance R1 is connect with the anode of the reference voltage V ref, and the other end of the variable resistance R1 passes through institute
It states rear class amplifying circuit to be electrically connected with one end of the differential amplifier circuit, the other end of the differential amplifier circuit passes through parallel connection
One resistance R3 is electrically connected with the outlet side current equalizing bus bar end I1 of the output current end V1 of power module and stream unit again.
Further, flow equalizing circuit is may be used more when a module can not provide the electric current of load needs
The mode of a wired in parallel provides total load, but since the output voltage of each module can not be completely the same, output impedance
Characteristic also can different from, at this moment just need to make the output voltage of multiple modules be consistent by flow equalizing circuit, flow equalizing circuit
Its voltage is turned down by power module output voltage is big, is tuned up its voltage by power module output voltage is small, and export
To current equalizing bus bar, and then realizes and flow effect.
Further, differential amplifier circuit is used for the difference between the output voltage of power module and current equalizing bus bar voltage
It is that preceding pole signal is transmitted to rear class amplifying circuit after being amplified, rear class amplifying circuit is used to zoom into prime signal the mould of bigger
The electric current of quasi- variation can obtain 90 times of amplifications of a VI and current equalizing bus bar voltage error in 1 foot of output end of amplifier N104A
Voltage value afterwards, and output voltage is that just, can thus raise the voltage value of Vref, to improve power module output voltage,
Increase power module output current；
Further, differential amplifier circuit includes amplifier N104C and amplifier N104B, the pin 8 of amplifier N104C with
Resistance R9 connections, pin 10 are electrically connected by resistance R13 with the output current end V1 of power module, and pin 9 passes through resistance
R5 is electrically connected with the pin 6 of amplifier N104B, and the pin 7 of amplifier N104B is electrically connected with resistance R10, amplifier N104B's
Pin 5 is electrically connected with one end of resistance R14, and the other end of resistance R14 is electrically connected by the first electric switch K1 and current equalizing bus bar end I1
It connects, positive in parallel with the pin of amplifier N104C 10 and the pin 5 of amplifier N104B respectively, the capacitance of capacitance C2 and capacitance C3
The cathode short circuit of C2 and capacitance C3 is grounded.
Further, rear class amplifying circuit include amplifier N104A, resistance R7 and capacitance C1 connect again it is in parallel with resistance R8,
Resistance R8 is connected in parallel on the both ends of the pin 1 and pin 2 of amplifier N104A, the pin 2 of amplifier N104A again with resistance R9 one
End connection, the pin 3 of amplifier N104A is in parallel with one end of resistance R4 and resistance R10, the other end ground connection of resistance R4.
Further, the input terminal of the current equalizing bus bar end I1 is additionally provided with the first electric switch, first electric switch with it is described
Microcontroller is electrically connected;First electric switch is electrically connected with the microcontroller；Further, microcontroller control first
The closure of electric switch connects current equalizing bus bar, when power module failure, module of cutting off the power when power module works normally
With the connection of current equalizing bus bar.
Further, first electric switch is metal-oxide-semiconductor.
Further, first electric switch is relay switch.
Preferably, the outside of the stream unit is also enclosed with shielded layer.
Preferably, as shown in figure 3, the power detecting unit includes power detecting input terminal U1, current-limiting resistance R6, shines
It diode VD1 and the second electric switch K2 and is sequentially connected in series.
Preferably, the reception card is that A9S types receive card, can also be that A4S types receive card.
Operation principle：V1 represents the output current end of power module, and current equalizing bus bar, current equalizing bus bar are drawn out to by resistance R3
On voltage be two parallel module output currents average value, when power module works independently, current equalizing bus bar is outstanding
Empty, amplifier input is high-impedance state, so this power module electric current VI is consistent with voltage on current equalizing bus bar, that is, this module electricity
Stream and current equalizing bus bar electric current do not have deviation, entire circuit output voltage（1 foot of N104）For 0V.This when is variable by being arranged
The value of resistance R1 and variable resistance R2 can obtain the output voltage of power module itself, when two power module parallel operations
When, if this power module output current is less than average current, i.e. VI voltages are less than current equalizing bus bar voltage, then by checking the mark
After amplification and rear class amplifying circuit, 90 times of a VI and current equalizing bus bar voltage error can be obtained in the pin 1 of amplifier N104A
Amplified voltage value, and output voltage is that just, can thus raise the voltage value of Vref, to improve power module output electricity
Pressure increases power module output current.If this power module output current is more than average current, a low electricity will be exported
Pressure reduces benchmark, to turn down output voltage.
Advantageous effect compared with the existing technology is that using the above scheme, the utility model is by setting flow equalizing circuit
It sets inside power module, current equalizing bus bar is accommodated in hot-face insulation wire casing, reduce the duty ratio of current equalizing bus bar, equally will
Power cord and control line are respectively provided with and in chamber resettling, not only ensure that the safety of other electrical equipments, and it is additional to solve current equalizer
The problem of taking up space cancels the mode that general power supply factory directly uses current equalizing bus bar or twisted wire；By the way that power detecting is arranged
The received card of unit is connect with computer control software, and staff's real time monitoring can be made to the operating status of power module, it is known that
Road is which power module is broken, and nor affects on display screen normal work；By the way that the first electric switch is arranged, work as power module failure
When, the connection with current equalizing bus bar is cut off, easy to repair or replacement power module is efficient and convenient；By being arranged outside stream unit
Shielded layer can reduce interference.
It should be noted that above-mentioned each technical characteristic continues to be combined with each other, the various embodiments not being enumerated above are formed,
It is accordingly to be regarded as the range of the utility model specification record；Also, it for those of ordinary skills, can be according to above stating
It is bright to be improved or converted, and all these modifications and variations should all belong to the protection model of the appended claims for the utility model
It encloses.
Claims (8)
1. a kind of LED display for hiding setting based on stream unit, including pinboard install two power supplys in switching plate surface
The reception card that socket, two power modules and two are used to transmit with computer data, the input terminal point of two power outlets
Do not connect with two mains supply points, the output ends of two power outlets by forceful electric power line respectively with two power supply moulds
The upper end letter ox input side of block is electrically connected, and the output end of two power modules passes through conversion terminal row and LED display
Mainboard connection；It is characterized in that, the inside of two power modules is equipped with substrate, it is arranged on substrate and flows unit；Institute
The inner wall for stating pinboard is additionally provided with the chamber resettling of the output end current equalizing bus bar for housing the stream unit, the accommodating cavity
Room is additionally provided with hot-face insulation wire casing；The upper end of two power modules is additionally provided with power detecting unit and GND grounding pins, the power supply
The signal output end of module be electrically connected through the power detecting unit with the signal acquisition terminal for receiving card, built in forceful electric power line with it is described
Inside chamber resettling.
2. according to the LED display for hiding setting based on stream unit described in claim 1, it is characterised in that：It is described equal
It flows and is equipped with flow equalizing circuit in unit, the flow equalizing circuit includes microcontroller, variable resistance R1, variable resistance R2, rear class amplification
Circuit, differential amplifier circuit, resistance R3, the output current end V1 of power module and the outlet side current equalizing bus bar end for flowing unit
The both ends of I1, the variable resistance R2 are connect with the both ends of reference voltage V ref, one end and the base of the variable resistance R1
The anode connection of quasi- voltage Vref, the other end of the variable resistance R1 pass through the rear class amplifying circuit and the differential amplification
One end of circuit is electrically connected, and the other end of the differential amplifier circuit is electric with the output of power module again by one resistance R3 of parallel connection
The outlet side current equalizing bus bar end I1 for flowing end V1 and stream unit is electrically connected.
3. according to the LED display for hiding setting based on stream unit described in claim 2, it is characterised in that：It is described equal
The input terminal of stream busbar end I1 is additionally provided with the first electric switch, and first electric switch is electrically connected with the microcontroller.
4. according to the LED display for hiding setting based on stream unit described in claim 3, it is characterised in that：Described
One electric switch is metal-oxide-semiconductor.
5. according to the LED display for hiding setting based on stream unit described in claim 3, it is characterised in that：Described
One electric switch is relay switch.
6. according to the LED display for hiding setting based on stream unit described in claim 1, it is characterised in that：It is described equal
The outside of stream unit is also enclosed with shielded layer.
7. according to the LED display for hiding setting based on stream unit described in claim 1, it is characterised in that：The electricity
Source detection unit includes power detecting input terminal U1, current-limiting resistance R6, light emitting diode VD1 and the second electric switch K2 and goes here and there successively
Connection.
8. according to the LED display for hiding setting based on stream unit described in claim 1, it is characterised in that：It is described to connect
It is that A9S types receive card to receive card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820232933.7U CN207966460U (en) | 2018-02-09 | 2018-02-09 | A kind of LED display for hiding setting based on stream unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820232933.7U CN207966460U (en) | 2018-02-09 | 2018-02-09 | A kind of LED display for hiding setting based on stream unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207966460U true CN207966460U (en) | 2018-10-12 |
Family
ID=63738753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820232933.7U Active CN207966460U (en) | 2018-02-09 | 2018-02-09 | A kind of LED display for hiding setting based on stream unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207966460U (en) |
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2018
- 2018-02-09 CN CN201820232933.7U patent/CN207966460U/en active Active
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