CN210430145U - Wiring device and household appliance - Google Patents
Wiring device and household appliance Download PDFInfo
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- CN210430145U CN210430145U CN201921613626.4U CN201921613626U CN210430145U CN 210430145 U CN210430145 U CN 210430145U CN 201921613626 U CN201921613626 U CN 201921613626U CN 210430145 U CN210430145 U CN 210430145U
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Abstract
The application provides a termination and domestic appliance. The wiring device comprises a shell, an internal connection terminal and an external connection terminal. The internal terminal and the external terminal are respectively arranged on the shell, the internal terminal is used for being connected with the controller, the external terminal is used for being connected with the weak current power supply, and the external terminal is electrically connected with the internal terminal. In addition, the wiring device further comprises a thermistor, and the thermistor is electrically connected between the internal terminal and the external terminal. Use the technical scheme of the utility model, through connect thermistor including between internal terminal and external terminal electricity, if the mistake with the power cord of forceful electric power supply when receiving external terminal on, owing to connect thermistor's existence, when voltage surpassed thermistor's calorific value tolerance, will break off external terminal and the electricity of internal terminal and be connected, avoid the electric current of forceful electric power supply to burn out the controller, guarantee control system's normal operating.
Description
Technical Field
The utility model relates to a domestic appliance technical field particularly, relates to a termination and domestic appliance.
Background
At present, a communication wiring board and a power wiring board for an air conditioner are basically placed at adjacent positions, and the potential risk of power supply wrong wiring to the communication wiring board exists. It is necessary to know that the power supply of the communication wiring board must be weak, and if a power line is mistakenly connected to the wiring terminal of the communication wiring board, the strong power is directly supplied to the communication circuit where the controller is located. Because the communication circuit is not voltage-resistant, the controller can be burnt out, and the unit can not operate.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a termination and domestic appliance to solve among the prior art termination existence because connect wrong electric wire and the technical problem that the controller that leads to burns out.
An embodiment of the present application provides a wiring device, including: a housing; the internal terminal is arranged on the shell and is used for being connected with the controller; the external terminal is arranged on the shell, is electrically connected with the internal terminal and is used for being connected with a weak current power supply; the wiring device further includes: and the thermistor is electrically connected between the internal terminal and the external terminal.
In one embodiment, the external connection terminal and the internal connection terminal are electrically connected by two lead wires, respectively.
In one embodiment, thermistors are provided on each of the two lead wires.
In one embodiment, the wiring device further includes: and the voltage dividing device is connected between the two leads in parallel.
In one embodiment, the wiring device further includes: and the piezoresistor is connected between the two leads in parallel.
In one embodiment, the wiring device further includes a PCB board, and the internal connection terminal and the external connection terminal are connected to the PCB board, respectively.
In one embodiment, the internal terminal and the controller are connected through a direct plug-in electric structure or a transverse plug-in electric structure.
In one embodiment, the wiring device further includes a voltage detector for detecting a power receiving voltage of the external terminal.
In one embodiment, the wiring device further comprises a display electrically connected to the voltage detector, the display being configured to display the received power voltage detected by the voltage detector.
In one embodiment, the wiring device further comprises a buzzer, wherein the buzzer is electrically connected with the voltage detector and is triggered when the electrified voltage detected by the voltage detector exceeds a preset value.
In one embodiment, the wiring device is a communication wiring device, and the external terminal is used for being connected with a communication power supply.
The application also provides a household appliance which comprises the wiring device.
In the above embodiment, the thermistor is electrically connected between the internal terminal and the external terminal, and if the power line of the strong power supply is mistakenly connected to the external terminal, due to the existence of the thermistor, when the voltage exceeds the heat resistance value of the thermistor, the electrical connection between the external terminal and the internal terminal is disconnected, so that the controller is prevented from being burnt by the current of the strong power supply, and the normal operation of the control system is ensured.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is an external structural schematic view of an embodiment of a wiring device according to the present invention;
FIG. 2 is a schematic illustration of an application state of the wiring lug of FIG. 1;
FIG. 3 is a schematic view of the internal structure of the wiring lug of FIG. 1;
fig. 4 is an electrical schematic of the wiring lug of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Fig. 1, 2 and 4 show an embodiment of the wiring device of the present invention, which includes a housing 10, an internal terminal 20 and an external terminal 30. The internal terminal 20 and the external terminal 30 are respectively arranged on the shell 10, the internal terminal 20 is used for being connected with a controller, the external terminal 30 is used for being connected with a weak current power supply, and the external terminal 30 is electrically connected with the internal terminal 20. In addition, the wiring device further includes a thermistor 40, and the thermistor 40 is electrically connected between the internal terminal 20 and the external terminal 30.
Use the technical scheme of the utility model, through connect thermistor 40 in the electricity between internal terminal 20 and external terminal 30, if the mistake with the power cord of forceful electric power supply when receiving external terminal 30 on, owing to connect thermistor 40's existence, when voltage surpassed thermistor 40's heat-resisting value, will break off external terminal 30 and the electricity of internal terminal 20 and be connected, avoid the electric current of forceful electric power supply to burn out the controller, guarantee control system's normal operating.
Alternatively, the internal terminals 20 and/or the external terminals 30 may be multi-bit wiring boards.
Preferably, in the technical solution of this embodiment, the thermistor 40 is a PTC resistor, and the current-limiting function is realized through an R-V characteristic curve of the PTC resistor, so as to ensure that the current value on the wiring device does not exceed its rated current, and improve the safety of the unit, thereby effectively protecting the controller from being burned by a strong current introduced by mistake. Alternatively, the PTC resistor may be plural, that is, plural PTC resistors may be provided on the lead.
As shown in fig. 4, in the present embodiment, the external connection terminal 30 and the internal connection terminal 20 are electrically connected by two lead wires, respectively. Optionally, in the technical solution of this embodiment, the thermistors 40 are respectively disposed on the two lead wires. As other alternative embodiments, it is also possible to provide the thermistor 40 on one of the two leads.
More preferably, as shown in fig. 3 and 4, the wiring device further includes: the voltage divider 50, voltage divider 50 connect in parallel between two lead wires, can realize the partial pressure function through voltage divider 50, guarantee to the voltage value on the termination not more than its rated voltage, improve unit security. More preferably, in order to further improve the safety of the wiring device, the wiring device further comprises a piezoresistor, and the piezoresistor is connected between the two leads in parallel.
As shown in fig. 3 and 4, in the solution of the present embodiment, the wiring device further includes a PCB board 60, and the internal terminal 20 and the external terminal 30 are respectively connected to the PCB board 60. Optionally, in the technical solution of the present embodiment, the external terminal 30 is directly connected to the PCB board 60 through a copper sheet, and the internal terminal 20 is connected to the PCB board 60 through a terminal wire.
It should be noted that, in general, experiments and connections between the internal connection terminal 20 and the related devices are all in the form of screwing, and the screwing needs to be repeated manually when the wires are disconnected, which affects the production efficiency. Therefore, as a preferred embodiment, inscription terminal 20 is connected through direct plug-in connection electric structure or horizontal plug-in connection electric structure between the controller, so can avoid on the production line installation wiring or need repeated dismantlement to beat the screw when testing, can promote production efficiency greatly, it is very convenient to dismantle, is difficult not hard up moreover, can ensure the effective fastening nature of wiring. Preferably, in the technical solution of the present embodiment, a 250-direct plug-in structure is adopted.
Optionally, as shown in fig. 4, in the technical solution of this embodiment, the wiring device further includes a voltage detector, and the voltage detector is configured to detect a power connection voltage of the external terminal 30. By detecting the power connection voltage of the external terminal 30, it can be determined whether the strong power supply is connected incorrectly.
More preferably, the wiring device further comprises a display 70, and the display 70 is electrically connected to the voltage detector. In this way, the display 70 can visually display the detected power voltage detected by the voltage detector for easy viewing by the operator. The power-off processing and the rewiring are timely prompted to the operator, the controller is prevented from being burnt, and the unit cannot normally and effectively operate. In the technical solution of the present embodiment, the display 70 is an LED display, and as another alternative implementation, the display 70 may also be another type.
As shown in fig. 4, as a more preferable embodiment, the wiring device further includes a buzzer, the buzzer is electrically connected to the voltage detector, and when the power receiving voltage detected by the voltage detector exceeds a predetermined value, the buzzer is triggered to alarm. When a wrong power cord is connected, the buzzer can be used for more visually reminding an operator.
Specifically, in the technical scheme of the utility model, can integrate functional device such as voltage detector, display 70 or bee calling organ on the PCB board. When the household appliance works normally, the condition of voltage fluctuation connected to the wiring device can be monitored at any time, and information can be provided for the running state of the household appliance.
Preferably, in the technical solution of this embodiment, the wiring device is a communication wiring device, and the external terminal 30 is used for connecting with a communication power supply. Correspondingly, the PCB is also a PCB integrated with the communication function.
Therefore, adopt the utility model discloses a termination can be so that wiring convenient operation, improves the efficiency of production line, realizes subtracting the crew and increases effects, reduces the human cost and the assemble duration of domestic appliance production, improves the security of unit. If the strong power supply is mistakenly connected to the external terminal 30, the protection can be carried out in time, and an operator is synchronously reminded of wrong wiring.
It should be noted that the utility model also provides a household appliance, this household appliance includes foretell termination. The household appliance adopting the wiring device can improve the safety performance of the household appliance and ensure the normal and stable operation of the household appliance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A wiring device comprising:
a housing (10);
the internal terminal (20) is arranged on the shell (10) and is used for being connected with a controller;
the external terminal (30) is arranged on the shell (10), is electrically connected with the internal terminal (20) and is used for being connected with a weak current power supply;
characterized in that, termination still includes:
a thermistor (40), wherein the thermistor (40) is electrically connected between the internal connection terminal (20) and the external connection terminal (30).
2. The wiring device according to claim 1, wherein the external terminal (30) and the internal terminal (20) are electrically connected by two leads, respectively.
3. The wiring device according to claim 2, wherein the thermistors (40) are provided on the two lead wires, respectively.
4. The wiring lug of claim 2, further comprising: a voltage dividing device (50), the voltage dividing device (50) being connected in parallel between the two leads.
5. The wiring lug of claim 2, further comprising: the piezoresistor is connected between the two leads in parallel.
6. The wiring device according to claim 1, further comprising a PCB board (60), wherein the internal terminal (20) and the external terminal (30) are connected to the PCB board (60), respectively.
7. The wiring lug according to claim 6, wherein the internal terminal (20) is connected to the controller by a direct plug electrical structure or a cross plug electrical structure.
8. The wiring device according to claim 1, further comprising a voltage detector for detecting a power receiving voltage of the external terminal (30).
9. The wiring lug according to claim 8, further comprising a display (70), wherein the display (70) is electrically connected to the voltage detector, and wherein the display (70) is configured to display the detected applied voltage from the voltage detector.
10. The wiring device according to claim 8, further comprising a buzzer electrically connected to the voltage detector, the buzzer being triggered when the voltage detector detects a power-on voltage exceeding a predetermined value.
11. A wiring device according to any one of claims 1 to 10, characterized in that the wiring device is a communication wiring device, and the external terminal (30) is used for connection with a communication power source.
12. A household appliance comprising a wiring device, characterized in that it is a wiring device according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921613626.4U CN210430145U (en) | 2019-09-25 | 2019-09-25 | Wiring device and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921613626.4U CN210430145U (en) | 2019-09-25 | 2019-09-25 | Wiring device and household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210430145U true CN210430145U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921613626.4U Active CN210430145U (en) | 2019-09-25 | 2019-09-25 | Wiring device and household appliance |
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|---|---|
| CN (1) | CN210430145U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600904A (en) * | 2019-09-25 | 2019-12-20 | 珠海格力电器股份有限公司 | Wiring device and household appliance |
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2019
- 2019-09-25 CN CN201921613626.4U patent/CN210430145U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600904A (en) * | 2019-09-25 | 2019-12-20 | 珠海格力电器股份有限公司 | Wiring device and household appliance |
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Effective date of registration: 20201012 Address after: No. 18 Zhilan Road, Jiangning District, Nanjing City, Jiangsu Province, 210000 (Jiangning High-tech Park) Patentee after: Gree Electric (Nanjing) Co., Ltd Patentee after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 519070 Guangdong city of Zhuhai Province Qianshan No. six Patentee before: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI |