CN203278178U - Explosion-proof commodity inspection box for compressor - Google Patents
Explosion-proof commodity inspection box for compressor Download PDFInfo
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- CN203278178U CN203278178U CN 201320212095 CN201320212095U CN203278178U CN 203278178 U CN203278178 U CN 203278178U CN 201320212095 CN201320212095 CN 201320212095 CN 201320212095 U CN201320212095 U CN 201320212095U CN 203278178 U CN203278178 U CN 203278178U
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- explosion
- commodity inspection
- inspection box
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Abstract
The utility model provides an explosion-proof commodity inspection box for a compressor. The explosion-proof commodity inspection box comprises a box and an electric control part that is provided in the box. The electric control part consists of a main control panel and a display panel that are connected with each other. The main control panel comprises a main control chip, a switching power supply circuit, a voltage stabilization circuit, a dial-up selection circuit, a data storage circuit, a buzzer circuit, an external display panel circuit, a high-and-low voltage protection detection circuit, a relay drive circuit, a current detection module and a communication circuit for external communication. The voltage stabilization circuit, the dial-up selection circuit, the data storage circuit, the buzzer circuit, the external display panel circuit, the high-and-low voltage protection detection circuit, the relay drive circuit, the current detection module and the communication circuit are connected to the main control chip in one-to-one correspondence. The voltage stabilization circuit and the relay drive circuit are connected to the switching power supply circuit respectively. By adopting the abovementioned technical scheme, the explosion-proof commodity inspection box can be used for single-phase compressor overcurrent fault detection and three-phase compressor overcurrent fault detection, and compressor explosion is prevented by detecting a current value.
Description
Technical field
The utility model relates to the technical field of the explosion-proof detection of compressor, refers in particular to the explosion-proof commodity inspection box of a kind of compressor.
Background technology
The method that when be used for controlling commodity inspection in prior art, the explosion-proof current detecting of compressor and pressure detecting adopt is pressure or the current values with artificial naked-eye observation demonstration, when numerical value reaches abnormal, cut off the electricity supply by artificial manual method, and then realize that the danger that prevents the compressor blast occurs.There is personnel's slow or vision erroneous judgement situation hand-manipulated in this kind mode, has potential safety hazard.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of safe and reliable, superior performance, easy to operate, control the explosion-proof commodity inspection box of accurate, adaptable compressor.
for achieving the above object, technical scheme provided by the utility model is: the explosion-proof commodity inspection box of a kind of compressor, it includes box and is placed in the interior automatically controlled part of this box, this automatically controlled part is comprised of interconnective master control borad and display panel, wherein, described master control borad includes main control chip, switching power circuit, voltage stabilizing circuit, dial-up is selected circuit, data storage circuitry, buzzer circuit, external display board circuit, high-low pressure protection testing circuit, relay drive circuit, current detection module and the communicating circuit that is used for external communication, described voltage stabilizing circuit, dial-up is selected circuit, data storage circuitry, buzzer circuit, external display board circuit, high-low pressure protection testing circuit, relay drive circuit, current detection module, communicating circuit respectively with main control chip corresponding joining one by one, simultaneously, this voltage stabilizing circuit and relay drive circuit be the connecting valve power circuit respectively.
Described display panel includes key circuit and digital pipe display circuit, and wherein, described key circuit is connected with the external display board circuit of master control borad respectively with digital pipe display circuit.
Described current detection module mainly is comprised of four or more current detection circuit, wherein, described current detection circuit includes instrument transformer, the first filter circuit, rectifier bridge, the second filter circuit, the bleeder circuit that joins successively, and this bleeder circuit and main control chip join.
Described the first filter circuit includes bypass resistance and the filter capacitor that is connected in parallel.
Described the second filter circuit include be connected in parallel polarity electrochemical capacitor and nonpolarity electrochemical capacitor arranged.
Described bleeder circuit includes voltage regulation resistance, bypass resistance, shunt capacitance, voltage stabilizing didoe, wherein, described bypass resistance, shunt capacitance, voltage stabilizing didoe formation in parallel are successively organized side by side, one pin and second filter circuit of voltage regulation resistance join, its another pin and above-mentioned arranged side by side group join, simultaneously, this side by side group connect main control chip, and this is organized with the second filter circuit side by side and is connected in parallel.
Described dial-up selects circuit to adopt 8 toggle switchs, the setting of address when these 8 toggle switchs are used for centralized control.
Described digital pipe display circuit adopts 6 figure place codes to show.
The model of described instrument transformer is 0057W.
The model of described main control chip is 4416.
The utility model is after having adopted such scheme, can be used for the detection of single-phase compressor over current fault and three-phase compressor over current fault detects, prevent the compressor blast by detecting current value, when current value reaches a certain set point, system's automatic cut-off power, and the generation alarm signal, occur thereby play the accident that prevents the compressor blast.Have the following advantages:
1, independence: different interval electric currents (by 1.5 times of the normal running current upper limit) and pressure controlling value are set for the machine of different type of machines, different electrical power voltage, only realize for the corresponding machine outage, do not affect operation and the test of commodity inspection room other machines;
2, the time is accurate: adopt microcomputerized control, one of each air port configuration (is mainly used in distinguishing the moment locked rotor current of machine energising operation) in the time of also 〉=5 seconds, the machine auto-breaking when the machine running current reaches set point.
Description of drawings
Fig. 1 is schematic diagram in kind of the present utility model.
Fig. 2 is master control borad circuit theory diagrams of the present utility model.
Fig. 3 is display board circuit schematic diagram of the present utility model.
Fig. 4 is the circuit theory diagrams of current detection module of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with specific embodiment.
referring to accompanying drawing 1 to shown in accompanying drawing 4, the explosion-proof commodity inspection box of the described compressor of the present embodiment, it includes box 1 and is placed in the interior automatically controlled part of this box 1, and this automatically controlled part is comprised of interconnective master control borad and display panel, wherein, described master control borad includes main control chip IC1, switching power circuit 201, be used for the 15V voltage transition is become the voltage stabilizing circuit 202 of 5V voltage, dial-up is selected circuit 203, it is the current failure memory chip of 24C02 that data storage circuitry 204(adopts model), buzzer circuit 205, external display board circuit 206, high-low pressure protection testing circuit 207, relay drive circuit 208, current detection module 209 and the communicating circuit 210 that is used for external communication, described voltage stabilizing circuit 202, dial-up is selected circuit 203, data storage circuitry 204, buzzer circuit 205, external display board circuit 206, high-low pressure protection testing circuit 207, relay drive circuit 208, current detection module 209, communicating circuit 210 respectively with main control chip IC1 corresponding joining one by one, the model of this main control chip IC1 is 4416, and simultaneously, this voltage stabilizing circuit 202 and relay drive circuit 208 be connecting valve power circuit 201 respectively, this relay drive circuit 208 adopts three relays, is respectively X1A, X2A, X3A, relay X1A, X2A controls A.C. contactor, and X3A controls the output of reporting to the police, and in normal operation, A.C. contactor will often leave, and therefore wants relay X1A, X2A is closure state, when breaking down, when A.C. contactor disconnects, reports to the police and exports, and X3A is closed, X1A, X2A disconnects, the operation principle of described relay is: when main control chip IC1 output high level, and the triode of relay drive circuit 208 (model is 9013) conducting, collector electrode output low level, voltage between relay two ends is 12V at this moment, relay closes.The described display panel of the present embodiment includes key circuit 301 and digital pipe display circuit 302, this key circuit 301 is connected with the external display board circuit 206 of master control borad respectively with digital pipe display circuit 302, this key circuit 301 includes four buttons, is respectively "+" key, "-" key, " resetting " key, " switching " key.in addition, the described current detection module 209 of the present embodiment mainly is comprised of four current detection circuits 211, wherein, each current detection circuit 211 includes instrument transformer, the first filter circuit 211-1, rectifier bridge, the second filter circuit 211-2, the bleeder circuit 211-3 that the model of joining successively is 0057W, and this first filter circuit 211-1 includes bypass resistance and the filter capacitor that is connected in parallel, this second filter circuit 211-2 include be connected in parallel polarity electrochemical capacitor and nonpolarity electrochemical capacitor arranged, and the winding in parallel ground that has polarity electrochemical capacitor and nonpolarity electrochemical capacitor to consist of after parallel connection, this bleeder circuit 211-3 includes voltage regulation resistance, bypass resistance, shunt capacitance, voltage stabilizing didoe, described bypass resistance, shunt capacitance, voltage stabilizing didoe formation in parallel is successively organized side by side, one pin of voltage regulation resistance and the second filter circuit 211-2 join, its another pin and above-mentioned arranged side by side group join, simultaneously, group connects main control chip IC1 side by side, and, group is connected in parallel with the second filter circuit 211-2 side by side, during use, zero line, live wire, phase line is passed respectively four instrument transformers, when electric current is arranged, instrument transformer detects electric current, current value is converted into analog voltage, the chip mouth is translated into the AD value after this analog voltage being detected, by ready-made AD table and the current value table of comparisons before, single-chip microcomputer passes the size of the electric wire current value on this inductance as can be known up till now, thereby can further carry out condition judgment.In addition, the described digital pipe display circuit 302 of the present embodiment adopts 6 figure place codes to show, wherein, 1, the situation that shows of 2,3 charactrons is as follows: a), during correcting state, the instrument transformer number of show proofreading and correct, b), when adjusting the overcurrent parameter, show an air-conditioning number of adjusting the overcurrent value parameter, c), all the other states, the air-conditioning of a display setting number; 4, the situation that shows of 5,6 charactrons is as follows: a), during correcting state, the instrument transformer that shows current correction is proofreaied and correct the after-current value, b), when adjusting the overcurrent parameter, show the overcurrent value of an air-conditioning number of adjusting, c), all the other states, show the lowest high-current value of four instrument transformers.The described dial-up of the present embodiment selects circuit 203 to adopt 8 toggle switchs, and when these 8 toggle switchs are used for centralized control, the setting of address, must set the address by toggle switch when installing first, sets the address corresponding with the work item, and disable address repeats.
Be below illustrating of the explosion-proof commodity inspection box of the present embodiment above-mentioned compressor:
1, the single-phase compressor over current fault detects: according to the compressor overcurrent protection value of user's setting, surpass continuously lasting 8 seconds of setting overcurrent value if detect power firestreak, arbitrary line current of zero line, relay disconnects, cut off commodity inspection platform power supply and show failure code " P3 ", buzzer continuous alarm; Otherwise normal commodity inspection operation.
2, the three-phase compressor over current fault detects: according to the compressor overcurrent protection value of user's setting, surpass lasting 8 seconds of setting overcurrent value if detect arbitrary current continuity of three phase lines, relay disconnects, and cuts off commodity inspection platform power supply and shows failure code " P3 ", buzzer continuous alarm; Otherwise normal commodity inspection operation.
3, charactron shows:
1., charactron viewing area 1(1,2,3) show a power number that arranges, example: 1.0 represent 1 type.
2., charactron viewing area 2(4,5,6) show current lowest high-current value, when breaking down, charactron viewing area 2 shows corresponding failure codes.
4, four buttons:
"+" button: 1., the current value correcting state: a), when flash in instrument transformer number number zone, press this key, can regulate the instrument transformer number, adjustment is sequentially 1--〉2--3--4--1; B), when the current value integer-bit is flashed, press this key, the integer-bit of this transformer current value of recoverable, correcting unit is 1A, correcting range-6A～+ 6A; C), when the current value decimal place is flashed, press this key, the decimal place of this transformer current value of recoverable, correcting unit is 0.1A, correcting range-6A～+ 6A.
When 2., adjusting the overcurrent parameter: a), when flash in air-conditioning number zone, press this key, can regulate an air-conditioning number of adjustment, adjustment is sequentially 1.0P--〉1.5P--〉2.0P--〉2.5P--〉3.0P--〉3.5P--〉4.0P--〉4.5P--〉5.0P--1.0P; B), when the overcurrent value integer-bit is flashed, press this key, the integer-bit of current number overcurrent value adds 1, adjusting range 0A～55A; C), when the overcurrent value decimal place is flashed, press this key, the decimal place of current number overcurrent value adds 0.1A, adjusting range 0A～55A.
"-" key: press this key, can regulate current type, the type flickering display,
During the current value correcting state: a), when flash in instrument transformer number number zone, press this key, can regulate the instrument transformer number, adjustment is sequentially 1--〉4--〉3--〉2--〉1; B), when the current value integer-bit is flashed, press this key, the integer-bit of the transformer current value of current correction subtracts 1, correcting range-6A～+ 6A; C), when the current value decimal place is flashed, press this key, the decimal place of the transformer current value of current correction subtracts 1, correcting range-6A～+ 6A;
" switching " key: changeable adjustable zone during correcting state, when adjusting the overcurrent parameter.
Key " resets ": a), after fault, press this key, if detection failure is recovered, the commodity inspection box recloses commodity inspection platform power supply, rejudges fault; If detection failure is not recovered, the commodity inspection box can not reclose commodity inspection platform power supply.B), when showing correcting state or adjusting the overcurrent parameter state, press this key, withdraw from and show correcting state or adjust the overcurrent parameter state, recover to show current value; And parameter is saved in the current failure memory chip of data storage circuitry 204.
5, current failure memory chip data storage format:
Can by the change parameters, final parameter be saved in the current failure memory chip.
6, troubleshooting:
| ? | Failure code | Troubleshooting |
| Current failure | P3 | Fault can restart by reset key after getting rid of |
| The current failure memory fault | P1 | Irrecoverable, the professional person keeps in repair |
| ? | ? | ? |
The examples of implementation of the above are only the preferred embodiment of the utility model, are not to limit practical range of the present utility model with this, therefore the variation that all shapes according to the utility model, principle are done all should be encompassed in protection range of the present utility model.
Claims (10)
1. explosion-proof commodity inspection box of compressor, it is characterized in that: it includes box (1) and is placed in the interior automatically controlled part of this box (1), this automatically controlled part is comprised of interconnective master control borad and display panel, and wherein, described master control borad includes main control chip (IC1), switching power circuit (201), voltage stabilizing circuit (202), dial-up is selected circuit (203), data storage circuitry (204), buzzer circuit (205), external display board circuit (206), high-low pressure protection testing circuit (207), relay drive circuit (208), current detection module (209) and the communicating circuit (210) that is used for external communication, described voltage stabilizing circuit (202), dial-up is selected circuit (203), data storage circuitry (204), buzzer circuit (205), external display board circuit (206), high-low pressure protection testing circuit (207), relay drive circuit (208), current detection module (209), communicating circuit (210) respectively with main control chip (IC1) corresponding joining one by one, simultaneously, this voltage stabilizing circuit (202) and relay drive circuit (208) be connecting valve power circuit (201) respectively.
2. the explosion-proof commodity inspection box of a kind of compressor according to claim 1, it is characterized in that: described display panel includes key circuit (301) and digital pipe display circuit (302), wherein, described key circuit (301) is connected with the external display board circuit (206) of master control borad respectively with digital pipe display circuit (302).
3. the explosion-proof commodity inspection box of a kind of compressor according to claim 1, it is characterized in that: described current detection module (209) mainly is comprised of four or more current detection circuit (211), wherein, described current detection circuit (211) includes instrument transformer, the first filter circuit (211-1), rectifier bridge, the second filter circuit (211-2), the bleeder circuit (211-3) that joins successively, and this bleeder circuit (211-3) joins with main control chip (IC1).
4. the explosion-proof commodity inspection box of a kind of compressor according to claim 3, it is characterized in that: described the first filter circuit (211-1) includes bypass resistance and the filter capacitor that is connected in parallel.
5. the explosion-proof commodity inspection box of a kind of compressor according to claim 3 is characterized in that: described the second filter circuit (211-2) include be connected in parallel polarity electrochemical capacitor and nonpolarity electrochemical capacitor arranged.
6. the explosion-proof commodity inspection box of a kind of compressor according to claim 3, it is characterized in that: described bleeder circuit (211-3) includes voltage regulation resistance, bypass resistance, shunt capacitance, voltage stabilizing didoe, wherein, described bypass resistance, shunt capacitance, voltage stabilizing didoe formation in parallel are successively organized side by side, one pin of voltage regulation resistance and the second filter circuit (211-2) join, its another pin and above-mentioned arranged side by side group join, simultaneously, group connects main control chip (IC1) side by side, and this is organized with the second filter circuit (211-2) side by side and is connected in parallel.
7. the explosion-proof commodity inspection box of a kind of compressor according to claim 1, is characterized in that: 8 toggle switchs of described dial-up selection circuit (203) employing, the setting of address when these 8 toggle switchs are used for centralized control.
8. the explosion-proof commodity inspection box of a kind of compressor according to claim 2, is characterized in that: described digital pipe display circuit (302) employing 6 figure place codes demonstrations.
9. the explosion-proof commodity inspection box of a kind of compressor according to claim 3, it is characterized in that: the model of described instrument transformer is 0057W.
10. the explosion-proof commodity inspection box of a kind of compressor according to claim 1, it is characterized in that: the model of described main control chip (IC1) is 4416.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212095 CN203278178U (en) | 2013-04-24 | 2013-04-24 | Explosion-proof commodity inspection box for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212095 CN203278178U (en) | 2013-04-24 | 2013-04-24 | Explosion-proof commodity inspection box for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278178U true CN203278178U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320212095 Withdrawn - After Issue CN203278178U (en) | 2013-04-24 | 2013-04-24 | Explosion-proof commodity inspection box for compressor |
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| Country | Link |
|---|---|
| CN (1) | CN203278178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280764A (en) * | 2013-04-24 | 2013-09-04 | 广东志高空调有限公司 | Anti-explosion commodity inspection box of compressor |
-
2013
- 2013-04-24 CN CN 201320212095 patent/CN203278178U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280764A (en) * | 2013-04-24 | 2013-09-04 | 广东志高空调有限公司 | Anti-explosion commodity inspection box of compressor |
| CN103280764B (en) * | 2013-04-24 | 2016-09-07 | 广东志高空调有限公司 | A kind of compressor anti-explosion commodity inspection box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |