CN202189110U - Air condition controller detecting device having reverse polarity protection circuit - Google Patents
Air condition controller detecting device having reverse polarity protection circuit Download PDFInfo
- Publication number
- CN202189110U CN202189110U CN2011202800179U CN201120280017U CN202189110U CN 202189110 U CN202189110 U CN 202189110U CN 2011202800179 U CN2011202800179 U CN 2011202800179U CN 201120280017 U CN201120280017 U CN 201120280017U CN 202189110 U CN202189110 U CN 202189110U
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- air
- conditioner controller
- unit
- air condition
- direct current
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Abstract
The utility model relates to an air condition controller detecting device and especially to an air condition controller detecting device having a reverse polarity protection circuit. The air condition controller detecting device having the reverse polarity protection circuit includes an air condition controller detecting tool provided with a positive port and a negative port together used for connecting with DC positive and negative output ports of the air condition controller; an overflow protection module. One end of the overflow protection module connects with the air condition controller detecting tool while the other end of the overflow protection module connects with an air condition controller. By adopting the overflow protection module in the utility model, the air condition controller can be prevented from damage caused by reverse polarity of DC when a power source board of the air condition controller is under detection, thereby keeping the air condition controller in a protected state and keeping a whole detecting system in a reliable and stable state.
Description
Technical field
The utility model relates to a kind of air-conditioner controller pick-up unit, is specifically related to a kind of air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit.
Technical background
At present; The air-conditioner controller product is more to be designed to power panel and control panel two parts to air-conditioner controller; 220V alternating current on the power panel converts the output of 300V direct current after through rectification to; Utilize the connector welding that has two distributions to insert 300V direct-flow positive pole, the cathode output end mouth of this power panel then, last this power panel connector that passes through again docks with the connector of control panel, for control panel provides power supply.This kind design because power panel is the direct current input, has the branch of both positive and negative polarity; Make the connector that has two distributions when inserting the both positive and negative polarity output port of power panel, cause reversal connection easily, soon should insert anodal distribution and insert negative pole, and be inserted into positive pole to the distribution that should insert negative pole; Such consequence is; When carrying out testing, in case after the detection frock powers on, can cause the direct damage of the power panel and the control panel of air-conditioner controller; And the efficient of reduction testing, increased the cost that keeps in repair.
The utility model content
The purpose of the utility model is to overcome the deficiency of prior art, and a kind of power panel of air-conditioner controller and air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit that control panel damages avoided is provided.The utility model can improve the efficient of testing, reduces maintenance cost.
To achieve these goals, the utility model adopts following technical scheme:
A kind of air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit; Comprise that air-conditioner controller detects frock; It is provided with the both positive and negative polarity port, is used to connect the direct current both positive and negative polarity output port of air-conditioner controller, and it also comprises over-current protecting unit; One end of said over-current protecting unit detects frock with air-conditioner controller and is connected, and its other end is connected with air-conditioner controller.
In the such scheme, said over-current protecting unit one end is connected with the anodal port that air-conditioner controller detects frock, and its other end is connected with the direct current cathode output end mouth of air-conditioner controller; Perhaps, said over-current protecting unit one end is connected with the negative pole port that air-conditioner controller detects frock, and its other end is connected with the direct current cathode output end mouth of air-conditioner controller.
In the such scheme, the both positive and negative polarity port that said air-conditioner controller detects frock is provided with direct current jack, and air-conditioner controller detects frock and is connected with direct current jack one end through over-current protecting unit, and the said direct current jack other end is connected with air-conditioner controller.
In the such scheme, said over-current protecting unit is the PTC thermistor.
In the such scheme, also comprise the reversal connection pilot lamp, said reversal connection pilot lamp one end detects frock with air-conditioner controller and is connected, and the other end is connected with air-conditioner controller.
In the such scheme, said reversal connection pilot lamp one end is connected with the anodal port that air-conditioner controller detects frock, and the other end is connected with the direct current cathode output end mouth of air-conditioner controller; Perhaps, said reversal connection pilot lamp one end is connected with the negative pole port that air-conditioner controller detects frock, and the other end is connected with the direct current cathode output end mouth of air-conditioner controller.
In the such scheme, said reversal connection pilot lamp is a light emitting diode.
Compared with prior art, the utlity model has following useful effect:
The utility model adopts the PTC thermistor to do overcurrent protection; When the air-conditioner controller power panel detects, can prevent to make air-conditioner controller be in protected state, make whole detection system be in the reliable and stable state because of the reversal connection of direct current polarity causes burning out of air-conditioner controller; And the utility model also is provided with the reversal connection pilot lamp; Make detection person can know the error-polarity connection situation more intuitively, improve the efficient of testing, reduce maintenance cost.
Description of drawings
Fig. 1 is the circuit diagram of the utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is done to specify further, but the embodiment of the utility model is not limited thereto.
The utility model is as shown in Figure 1; A kind of air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit; Comprise that air-conditioner controller detects frock 1, over-current protecting unit 2, direct current jack 8 and reversal connection pilot lamp 9; Air-conditioner controller detects frock 1 and is provided with anodal port 4 and negative pole port 5, and over-current protecting unit 2 is the PTC thermistor, and reversal connection pilot lamp 9 is a light emitting diode; Over-current protecting unit 2 one ends are connected with the anodal port 4 that air-conditioner controller detects frock 1; The other end of over-current protecting unit 2 is connected with direct current jack 8 one ends, and the negative pole port 5 that air-conditioner controller detects frock 1 directly is connected with direct current jack 8 one ends, and the anodal port 4 that air-conditioner controller detects frock 1 is connected with an end of reversal connection pilot lamp 9 through over-current protecting unit 2; The other end of reversal connection pilot lamp 9 is connected with the direct current cathode output end mouth 6 of air-conditioner controller 3, and direct current jack 8 other ends also are connected with direct current cathode output end mouth 7 with the direct current cathode output end mouth 6 of air-conditioner controller 3.
During work, air-conditioner controller is detected frock 1 power on, correct if air-conditioner controller direct current polarity connects; Electric current through the PTC thermistor is just very little, and the PTC thermistor is equal to short circuit, and the voltage in the air-conditioner controller 3 can get into air-conditioner controller and detect frock 1; This moment is under correct polarity connects; The air-conditioner controller pick-up unit can normally carry out testing, and this moment, reversal connection pilot lamp 9 two ends all were anodal, can not form the loop; So the reversal connection pilot lamp does not work, it is correct to show that polarity connects.On the contrary, the direct current both positive and negative polarity reversal connection in air-conditioner controller 3, the electric current in the air-conditioner controller 3 increases; PTC thermistor overcurrent; Its temperature is step evolution and increases, and the PTC resistance increases severely, and moment is equal to opens circuit; Cut off air-conditioner controller 3 and flowed into, played overcurrent protection to the electric current that air-conditioner controller detects frock 1; And this moment; Reversal connection pilot lamp 9 one ends have connected the anodal port 4 of air-conditioner controller detection frock 1, and the other end is exported because of the direct current negative pole that reversal connection has connected air-conditioner controller 3, and; The reversal connection pilot lamp is before inserting over-current protecting unit 2, to be connected with air-conditioner controller 3; So the protection of PTC thermistor is to the not influence of loop of reversal connection pilot lamp 9, reversal connection pilot lamp 9 is bright, shows the pole reversal.
Similarly, over-current protecting unit 2 can be connected air-conditioner controller and detect between the negative pole port 5 and direct current jack 8 of frock 1, and the annexation of miscellaneous part is constant, and the effect of its generation is constant.
Similarly, reversal connection pilot lamp 9 one ends can be connected with the negative pole port 5 that air-conditioner controller detects frock 1, and the other end is connected 3 direct current cathode output end mouth 7 and connects with air-conditioner controller, and the annexation of miscellaneous part is constant, and the effect of its generation is also constant.
Claims (10)
1. air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit; Comprise that air-conditioner controller detects frock (1), it is provided with the both positive and negative polarity port, is used to connect the direct current both positive and negative polarity output port of air-conditioner controller (3); It is characterized in that; Also comprise over-current protecting unit (2), an end of said over-current protecting unit (2) detects frock (1) with air-conditioner controller and is connected, and the other end of over-current protecting unit (2) is connected with air-conditioner controller (3).
2. the air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit according to claim 1; It is characterized in that; Said over-current protecting unit (2) one ends are connected with the anodal port (4) that air-conditioner controller detects frock (1), and its other end is connected with the direct current cathode output end mouth (6) of air-conditioner controller.
3. the air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit according to claim 1; It is characterized in that; Said over-current protecting unit (2) one ends are connected with the negative pole port (5) that air-conditioner controller detects frock (1), and its other end is connected with the direct current cathode output end mouth (7) of air-conditioner controller.
4. the air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit according to claim 3; It is characterized in that; The both positive and negative polarity port that said air-conditioner controller detects frock is provided with direct current jack (8); Air-conditioner controller detects frock (1) and is connected with direct current jack (8) one ends through over-current protecting unit (2), and said direct current jack (8) other end is connected with air-conditioner controller (3).
5. according to each described air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit of claim 1 to 4, it is characterized in that said over-current protecting unit (2) is the PTC thermistor.
6. the air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit according to claim 5; It is characterized in that; Also comprise reversal connection pilot lamp (9), said reversal connection pilot lamp (9) one ends detect frock (1) with air-conditioner controller and are connected, and the other end is connected with air-conditioner controller (3).
7. the air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit according to claim 6; It is characterized in that; Said reversal connection pilot lamp (9) one ends are connected with the anodal port (4) that air-conditioner controller detects frock (1), and the other end is connected with the direct current cathode output end mouth (6) of air-conditioner controller.
8. the air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit according to claim 6; It is characterized in that; Said reversal connection pilot lamp (9) one ends are connected with the negative pole port (5) that air-conditioner controller detects frock (1), and the other end is connected with the direct current cathode output end mouth (7) of air-conditioner controller.
9. the air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit according to claim 7 is characterized in that said reversal connection pilot lamp (9) is a light emitting diode.
10. the air-conditioner controller pick-up unit that has the protection to error-polarity connection circuit according to claim 8 is characterized in that said reversal connection pilot lamp (9) is a light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202800179U CN202189110U (en) | 2011-08-03 | 2011-08-03 | Air condition controller detecting device having reverse polarity protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202800179U CN202189110U (en) | 2011-08-03 | 2011-08-03 | Air condition controller detecting device having reverse polarity protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189110U true CN202189110U (en) | 2012-04-11 |
Family
ID=45920550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202800179U Expired - Fee Related CN202189110U (en) | 2011-08-03 | 2011-08-03 | Air condition controller detecting device having reverse polarity protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189110U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659603A (en) * | 2014-06-26 | 2015-05-27 | 柳州市够旺贸易有限公司 | Socket |
| WO2021109054A1 (en) * | 2019-12-05 | 2021-06-10 | Suzhou Littelfuse Ovs Co., Ltd. | Relay assembly with reverse connection protection |
-
2011
- 2011-08-03 CN CN2011202800179U patent/CN202189110U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659603A (en) * | 2014-06-26 | 2015-05-27 | 柳州市够旺贸易有限公司 | Socket |
| WO2021109054A1 (en) * | 2019-12-05 | 2021-06-10 | Suzhou Littelfuse Ovs Co., Ltd. | Relay assembly with reverse connection protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20170803 |