CN207881847U - A kind of hand-held input device - Google Patents
A kind of hand-held input device Download PDFInfo
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- CN207881847U CN207881847U CN201820301156.7U CN201820301156U CN207881847U CN 207881847 U CN207881847 U CN 207881847U CN 201820301156 U CN201820301156 U CN 201820301156U CN 207881847 U CN207881847 U CN 207881847U
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- 239000004065 semiconductor Substances 0.000 claims description 50
- 230000001052 transient effect Effects 0.000 claims description 31
- 230000001629 suppression Effects 0.000 claims description 28
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001131 transforming effect Effects 0.000 abstract description 2
- 230000003071 parasitic effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
The utility model discloses a kind of hand-held input devices, belong to distribution transforming thermometric management technical field, including：Key circuit, display device, communication device including control device and connection control device, and connect the power circuit of control device, key circuit, display device, communication device；Power circuit includes：Power interface, including positive output end and negative output terminal；Reverse-connection preventing circuit is connected between positive output end and negative output terminal；Antistatic circuit is connected between positive output end and negative output terminal；The input terminal of regulator circuit, regulator circuit connects power interface, output end connection key circuit, the control device of regulator circuit；The output end of regulator circuit connects display device by the first power control, and passes through second source control device connection communication device.The advantageous effect of above-mentioned technical proposal is：The problem of power circuit for improving hand-held input device solves in the prior art, and hand-held input device continuous working period is short, unstable working condition.
Description
Technical field
The utility model is related to distribution transforming thermometric management technical field more particularly to a kind of hand-held input devices.
Background technology
Distribution transformer is a kind of high-efficient electric equipment largely used in electrical power trans mission/distribution system, measures distribution transformer ring
It mainly reflects Wen Shengyi important evidence parameter of transformer to border temperature requirements, coordinates the mild environment temperature synthesis of transformer oil
Analysis can be derived that the operating load situation of distribution transformer and normal condition are stable with reference to characteristic.Therefore, to avoid distribution
Transformer is burnt because load abruptly increase breaks down, it will usually temperature measuring equipment be arranged on distribution transformer.
After temperature measuring equipment is installed on distribution transformer, need to debug temperature measuring equipment, currently, to distribution transformer
Temperature measuring equipment debugging, mainly staff directly operates on temperature measuring equipment, since distribution transformer is usually set
It sets aloft or in enclosure space, field adjustable is inconvenient.Therefore occurs the thermometric dress for debugging distribution transformer in the market
The hand-held input device set.The power circuit existing defects of existing hand-held input device cause hand-held input device to continue work
It is short to make the time, unstable working condition.
Invention content
According to the above-mentioned problems in the prior art, a kind of hand-held input device is now provided, improves and holds input device
Power circuit, it is intended to solve in the prior art, to hold that input device continuous working period is short, and unstable working condition is asked
Topic.The utility model adopts the following technical solution：
A kind of hand-held input device, including control device and connect the key circuit of the control device, display device, logical
T unit, and connect the power circuit of the control device, key circuit, display device, communication device；
The power circuit includes：
Power interface, including positive output end and negative output terminal；
Reverse-connection preventing circuit is connected between the positive output end and the negative output terminal；
Antistatic circuit is connected between the positive output end and the negative output terminal；
The input terminal of regulator circuit, the regulator circuit connects the power interface, and the output end of the regulator circuit connects
Connect the key circuit, control device；
The output end of the regulator circuit also connects the display device by one first power control, and passes through
One second source control device connects the communication device.
Preferably, in above-mentioned hand-held input device, the output end of the regulator circuit is also shone by resistance R1 connections one
Diode D1.
Preferably, in above-mentioned hand-held input device, the regulator circuit includes the power supply chip of model XC6206P332
U1；
The 3rd pin of power supply chip U1 be the regulator circuit input terminal, power supply chip U1 the 3rd pin connection described in
Positive output end；
The 1st pin of power supply chip U1 is the output end of the regulator circuit；
The 2nd pin of power supply chip U1 is grounded.
Preferably, in above-mentioned hand-held input device, the antistatic circuit includes：
The cathode of Transient Suppression Diode V1, Transient Suppression Diode V1 connect the positive output end；
The anode of the anode connection Transient Suppression Diode V1 of Transient Suppression Diode V2, Transient Suppression Diode V2, wink
State inhibits the cathode of diode V2 to connect the negative output terminal.
Preferably, in above-mentioned hand-held input device, the reverse-connection preventing circuit includes：
The grid of the metal-oxide-semiconductor chip U2 of model AUIRF7805Q, metal-oxide-semiconductor chip U2 are described just defeated by resistance R2 connections
The drain electrode of outlet, metal-oxide-semiconductor chip U2 connects the negative output terminal, the source electrode ground connection of metal-oxide-semiconductor chip U2；
There is a first node n1, first node n1 connection transient states to inhibit two poles between the source electrode and ground of metal-oxide-semiconductor chip U2
The anode of the anode of pipe V3, Transient Suppression Diode V3 connects the positive output end.
Preferably, in above-mentioned hand-held input device, first power control includes：
Metal-oxide-semiconductor Q1, the source electrode of metal-oxide-semiconductor Q1 connect the output end of the regulator circuit, and the drain electrode connection of metal-oxide-semiconductor Q1 is described aobvious
The energization input of showing device；
The collector of triode Q3, triode Q3 pass through the grid of resistance R3 connection metal-oxide-semiconductors Q1, the emitter of triode Q3
The base stage of ground connection, triode Q3 connects the control device.
Preferably, in above-mentioned hand-held input device, the second source control device includes：
Metal-oxide-semiconductor Q2, the source electrode of metal-oxide-semiconductor Q2 connect the output end of the regulator circuit, and the drain electrode connection of metal-oxide-semiconductor Q2 is described logical
The energization input of T unit；
The collector of triode Q4, triode Q4 pass through the grid of resistance R4 connection metal-oxide-semiconductors Q2, the emitter of triode Q4
The base stage of ground connection, triode Q4 connects the control device.
Preferably, in above-mentioned hand-held input device, the communication device uses Zigbee chips, the Zigbee chips
Model ZM5161P0-2-M.
Preferably, in above-mentioned hand-held input device, the control device uses the place of model MSP430G2553IPW28
Manage device.
Preferably, in above-mentioned hand-held input device, the display device uses the liquid crystal display of model LG12864S-DW
Screen.
The advantageous effect of above-mentioned technical proposal is：The power circuit for improving hand-held input device solves in the prior art, hand
It is short to hold input device continuous working period, the problem of unstable working condition.
Description of the drawings
Fig. 1 is a kind of structure diagram of hand-held input device in the preferred embodiment of the utility model；
Fig. 2 is a kind of circuit diagram of the power circuit of hand-held input device in the preferred embodiment of the utility model.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as the utility model
It limits.
In the preferred embodiment of the utility model, as depicted in figs. 1 and 2, a kind of 1. hand-held input devices are provided, including
Key circuit 2, display device 3, the communication device 4 of control device 1 and connection control device 1, and connect control device 1, press
The power circuit 5 of key circuit 2, display device 3, communication device 4；
Power circuit 5 includes：
Power interface, including positive output end 51 and negative output terminal 52, the positive output end 51 and negative output terminal 52 of power interface
It is separately connected the positive and negative anodes of power supply；
Reverse-connection preventing circuit 53 is connected to 52 between positive output end 51 and negative output terminal；
Antistatic circuit 54 is connected to 52 between positive output end 51 and negative output terminal；
The input terminal of regulator circuit 55, regulator circuit 55 connects power interface, and the output end of regulator circuit 55 connects button
Circuit 2, control device 1；
The output end of regulator circuit 55 also connects display device 3 by one first power control 56, and passes through one
57 connection communication device 4 of second source control device.
In the present embodiment, the processor of the use model of control device 1 MSP430G2553IPW28 of hand-held typing terminal,
Key circuit 2 is 4 × 4 matrix keyboard circuit commonly used in the prior art, display device 3 using model LG12864S-DW's
Liquid crystal display, communication device 4 use Zigbee chips, the model ZM5161P0-2-M of Zigbee chips.
Further, processor MSP430G2553IPW28 is carried out with liquid crystal display LG12864S-DW by SPI pins
Connection, processor MSP430G2553IPW28 is attached with Zigbee chips ZM5161P0-2-M by serial communication pin
, processor MSP430G2553IPW28 is attached with 4X4 matrix keyboards by I/O pin, and all of above connection is all logical
Cross what electric signal connection was realized.
In the present embodiment, power circuit 5 includes reverse-connection preventing circuit 53, and the circuit because power supply that can avoid hand-held input device is anti-
It connects and damages；Further, power circuit 5 includes regulator circuit 55, antistatic circuit 54, improves the stability of power supply, to protect
Barrier, which holds input device, has good working order.
In the preferred embodiment of the utility model, as shown in Fig. 2, regulator circuit 55 includes model XC6206P332's
Power supply chip U1；
The 3rd pin of power supply chip U1 is the input terminal of regulator circuit 55, and the 3rd pin of power supply chip U1 connects positive output
End 51；
The 1st pin of power supply chip U1 is the output end of regulator circuit 55, is set on the line of the 1st pin of power supply chip U1
It is equipped with node n2 and the node n3 between node n2 and the 1st pin of power supply chip U1, node n3 connection capacitance C1, capacitance
C1 is not connected with one end ground connection of node n3, and node n2 connections capacitance C2, capacitance C2 is not connected with one end ground connection of node n2, wherein saving
Point n2 is the output connection of regulator circuit 55；
The 2nd pin of power supply chip U1 is grounded.
In the present embodiment, power supply uses the power supply of model XC6206P332 using 4 No. 7 dry cells of section, regulator circuit 55
Chip U1, the chip power-consumption is low, and the feature with low static state, can reduce the consumption of power supply.Power supply chip U1 outputs 3.3V is straight
Galvanic electricity pressure is arranged two ground capacities in the output end of power supply chip U1, plays the role of filtering, defeated to improve regulator circuit 55
Go out the stability of voltage.
In the preferred embodiment of the utility model, as shown in Fig. 2, antistatic circuit 54 includes：
The cathode of Transient Suppression Diode V1, Transient Suppression Diode V1 connect positive output end 51；
The anode of the anode connection Transient Suppression Diode V1 of Transient Suppression Diode V2, Transient Suppression Diode V2, wink
State inhibits the cathode of diode V2 to connect negative output terminal 52.
In the present embodiment, there is node n4 between positive output end 51 and power supply chip U1, Transient Suppression Diode V1's
Cathode connecting nodes n4.
In the preferred embodiment of the utility model, as shown in Fig. 2, reverse-connection preventing circuit 53 includes：
The grid of the metal-oxide-semiconductor chip U2 of model AUIRF7805Q, metal-oxide-semiconductor chip U2 pass through resistance R2 connection positive output ends
The drain electrode of 51, metal-oxide-semiconductor chip U2 connect negative output terminal 52, the source electrode ground connection of metal-oxide-semiconductor chip U2；
There is a first node n1, first node n1 connection transient states to inhibit two poles between the source electrode and ground of metal-oxide-semiconductor chip U2
The cathode of the anode of pipe V3, Transient Suppression Diode V3 connects positive output end 51.
In the present embodiment, there is node n5 between node n4 and power supply chip U1, the 4th foot of metal-oxide-semiconductor chip U2 is it
Grid passes through resistance R2 connecting nodes n5；The 5-8 feet of metal-oxide-semiconductor chip U2 drain for it, connect negative output terminal 52；Metal-oxide-semiconductor core
The 1-3 feet of piece U2 are its source electrode, ground connection.
Further, in this embodiment having node n6, first node n1 connection winks between node n5 and power supply chip U1
The anode of state inhibition diode V3, the cathode connecting nodes n6 of Transient Suppression Diode V3, Transient Suppression Diode V3 herein
To the effect of voltage stabilizing.Reverse-connection preventing circuit 53 can protect other circuits of hand-held input device in battery reversal connection, avoid holding
Input device damages.
The inside of metal-oxide-semiconductor chip U2 is an enhanced metal-oxide-semiconductor of the N-channel with parasitic diode, when battery correctly connects
When：It just powers on, the parasitic diode conducting of metal-oxide-semiconductor, so the current potential of source electrode is 0.6V, and the current potential of grid is that (power supply is just by VCC
Pole), VCC-0.6V is more than the threshold values cut-in voltage of UGS, will be connected between the drain electrode and source electrode of metal-oxide-semiconductor, due to internal resistance very little,
So just parasitic diode short circuit, pressure drop is almost nil；When power supply is reversed：UGS=0, metal-oxide-semiconductor do not turn on, and negative
The circuit of load is exactly disconnected, to ensure circuit safety.This chip mainly plays an anti-battery reversal connection come after protecting
The operating circuit in face.
In the preferred embodiment of the utility model, the first power control 56 includes：
The output end of the source electrode connection regulator circuit 55 of metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q1, the drain electrode of metal-oxide-semiconductor Q1 connect display device
3 energization input；
The collector of triode Q3, triode Q3 pass through the grid of resistance R3 connection metal-oxide-semiconductors Q1, the emitter of triode Q3
The base stage of ground connection, triode Q3 connects control device 1；
The drain electrode of metal-oxide-semiconductor Q1 is also associated with ground capacity, and further, the drain electrode of metal-oxide-semiconductor Q1 is also connected with transient state and inhibits two
The cathode of pole pipe V4, the anode of the anode connection Transient Suppression Diode V5 of Transient Suppression Diode V4, Transient Suppression Diode
The cathode of V5 connects, and Transient Suppression Diode V4, Transient Suppression Diode V5 are connected between the drain electrode and ground of metal-oxide-semiconductor Q1, rises
To the effect of antistatic.
In the preferred embodiment of the utility model, second source control device 57 includes：
The output end of the source electrode connection regulator circuit 55 of metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q2, the drain electrode connection communication device of metal-oxide-semiconductor Q2
4 energization input；
The collector of triode Q4, triode Q4 pass through the grid of resistance R4 connection metal-oxide-semiconductors Q2, the emitter of triode Q4
The base stage of ground connection, triode Q4 connects control device 1.
In the present embodiment, there are two the control output ends PWM for the tool of control device 1, are separately connected the first power control 56
With the control signal (base stage of triode Q3 and triode Q4) of second source control device 57, pass through the control output ends PWM
The low and high level of output controls the working power of display device 3 and communication device 4.
In the preferred embodiment of the utility model, the output end of regulator circuit 55 also passes through resistance R1 connections one luminous two
Pole pipe D1, light emitting diode D1 play indicative function.
It these are only the utility model preferred embodiment, be not intended to limit the embodiment and protection of the utility model
Range should can appreciate that all with the utility model specification and diagramatic content institute to those skilled in the art
The equivalent replacement made and obviously change obtained scheme, the scope of protection of the utility model should all be included in
It is interior.
Claims (10)
1. a kind of hand-held input device, which is characterized in that including control device and connect the key circuit of the control device, show
Showing device, communication device, and connect the power circuit of the control device, key circuit, display device, communication device；
The power circuit includes：
Power interface, including positive output end and negative output terminal；
Reverse-connection preventing circuit is connected between the positive output end and the negative output terminal；
Antistatic circuit is connected between the positive output end and the negative output terminal；
The input terminal of regulator circuit, the regulator circuit connects the power interface, and the output end of the regulator circuit connects institute
State key circuit, control device；
The output end of the regulator circuit also connects the display device by one first power control, and passes through one the
Two power controls connect the communication device.
2. hand-held input device as described in claim 1, which is characterized in that the output end of the regulator circuit also passes through resistance
One light emitting diode D1 of R1 connections.
3. hand-held input device as described in claim 1, which is characterized in that the regulator circuit includes model
The power supply chip U1 of XC6206P332；
The 3rd pin of power supply chip U1 is the input terminal of the regulator circuit, and the 3rd pin connection of power supply chip U1 is described just defeated
Outlet；
The 1st pin of power supply chip U1 is the output end of the regulator circuit；
The 2nd pin of power supply chip U1 is grounded.
4. hand-held input device as described in claim 1, which is characterized in that the antistatic circuit includes：
The cathode of Transient Suppression Diode V1, Transient Suppression Diode V1 connect the positive output end；
The anode of the anode connection Transient Suppression Diode V1 of Transient Suppression Diode V2, Transient Suppression Diode V2, transient state suppression
The cathode of diode V2 processed connects the negative output terminal.
5. hand-held input device as described in claim 1, which is characterized in that the reverse-connection preventing circuit includes：
The grid of the metal-oxide-semiconductor chip U2 of model AUIRF7805Q, metal-oxide-semiconductor chip U2 pass through the resistance R2 connections positive output
The drain electrode at end, metal-oxide-semiconductor chip U2 connects the negative output terminal, the source electrode ground connection of metal-oxide-semiconductor chip U2；
There is a first node n1, first node n1 connection Transient Suppression Diodes V3 between the source electrode and ground of metal-oxide-semiconductor chip U2
Anode, the anode of Transient Suppression Diode V3 connects the positive output end.
6. hand-held input device as described in claim 1, which is characterized in that first power control includes：
Metal-oxide-semiconductor Q1, the source electrode of metal-oxide-semiconductor Q1 connect the output end of the regulator circuit, and the drain electrode of metal-oxide-semiconductor Q1 connects the display dress
The energization input set；
The collector of triode Q3, triode Q3 pass through the grid of resistance R3 connection metal-oxide-semiconductors Q1, and the emitter of triode Q3 connects
The base stage on ground, triode Q3 connects the control device.
7. hand-held input device as described in claim 1, which is characterized in that the second source control device includes：
Metal-oxide-semiconductor Q2, the source electrode of metal-oxide-semiconductor Q2 connect the output end of the regulator circuit, and the drain electrode of metal-oxide-semiconductor Q2 connects the communication dress
The energization input set；
The collector of triode Q4, triode Q4 pass through the grid of resistance R4 connection metal-oxide-semiconductors Q2, and the emitter of triode Q4 connects
The base stage on ground, triode Q4 connects the control device.
8. hand-held input device as described in claim 1, which is characterized in that the communication device uses Zigbee chips, institute
State the model ZM5161P0-2-M of Zigbee chips.
9. hand-held input device as described in claim 1, which is characterized in that the control device uses model
The processor of MSP430G2553IPW28.
10. hand-held input device as described in claim 1, which is characterized in that the display device uses model
The liquid crystal display of LG12864S-DW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820301156.7U CN207881847U (en) | 2018-03-05 | 2018-03-05 | A kind of hand-held input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820301156.7U CN207881847U (en) | 2018-03-05 | 2018-03-05 | A kind of hand-held input device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207881847U true CN207881847U (en) | 2018-09-18 |
Family
ID=63496593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820301156.7U Active CN207881847U (en) | 2018-03-05 | 2018-03-05 | A kind of hand-held input device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207881847U (en) |
-
2018
- 2018-03-05 CN CN201820301156.7U patent/CN207881847U/en active Active
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 351, building 2, 2388 xiupu Road, Kangqiao Town, Pudong New Area, Shanghai, 200120 Patentee after: Shanghai Haineng Information Technology Co.,Ltd. Address before: Room 351, building 2, 2388 xiupu Road, Kangqiao Town, Pudong New Area, Shanghai, 200120 Patentee before: SHANGHAI HINNER TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |