CN210212288U - Novel external power supply wall box - Google Patents
Novel external power supply wall box Download PDFInfo
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- CN210212288U CN210212288U CN201920963702.8U CN201920963702U CN210212288U CN 210212288 U CN210212288 U CN 210212288U CN 201920963702 U CN201920963702 U CN 201920963702U CN 210212288 U CN210212288 U CN 210212288U
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Abstract
The utility model discloses a novel external power supply wall box is provided with the box body, and the wall of this box body is provided with external power supply interface, vehicle mounted power source interface and power output interface, and inside is provided with the mounting bracket, and this mounting bracket from the bottom up has set gradually contactor, wave filter and control circuit board, external power source interface, vehicle mounted power source interface are in proper order through contactor, wave filter connection power output interface, control circuit board is used for detecting the power supply condition of each interface of external power source interface, vehicle mounted power source interface to according to the interface of supplying power among power condition control contactor with power output interface connection external power source interface, the vehicle mounted power source interface.
Description
Technical Field
The utility model relates to a specially adapted electrical components on the vehicle especially relates to a novel external power supply wall box.
Background
The power supply wall box is an electric device which has the functions of connecting an external power supply to a load input end through a wall box panel and protecting, detecting and alarming. The current power supply wall box has small current carrying capacity due to limited space and cannot meet the requirements of loads with large rated current. And the existing power wall box is manually operated when an external power supply is switched, and the operation is complex.
SUMMERY OF THE UTILITY MODEL
For solving above technical problem, the utility model provides a novel external power supply wall box can set up the great electrical equipment of bearing capacity in the limited space of power supply wall box to insert the external power supply of heavy current, can carry out automatic switch-over simultaneously, increase operating personnel convenience.
The technical scheme is as follows:
the utility model provides a novel external power supply wall box, is provided with the box body, and the wall of this box body is provided with external power supply interface, vehicle mounted power source interface and power output interface, and inside is provided with the mounting bracket, and this mounting bracket from the top down has set gradually control circuit board to and bear the great wave filter of electric current and 2 contactors, external power source interface, vehicle mounted power source interface are respectively in proper order through contactor, wave filter connection power output interface, control circuit board is used for detecting the power supply condition of external power source interface, vehicle mounted power source interface, and when external power source interface connection external power source, control circuit board passes through contactor intercommunication power output interface and external power source interface.
Furthermore, the mounting bracket is provided with 3 mounting panels, and 3 mounting panels set up side by side inside the box body, and the both sides of mounting panel are fixed with the box body inner wall, contactor, wave filter and control circuit board are installed respectively on 3 mounting panels.
Furthermore, the mounting plate located in the middle of the box body is connected with a plurality of support columns, one ends of the support columns are fixed with the mounting plate, and the other ends of the support columns penetrate through the mounting plate located below downwards and are fixed with the bottom of the box body.
Furthermore, a lightning protection device is arranged between the filter and the contactor.
Furthermore, a leakage protector is arranged between the filter and the power output interface.
Further, the control circuit board is provided with:
the switching module is used for detecting the power supply condition of each interface of the external power supply interface and the vehicle-mounted power supply interface and controlling the contactor to switch the interfaces according to the power supply condition;
the detection module is used for measuring the voltages of the external power supply interface and the vehicle-mounted power supply interface, determining a fault condition according to the voltages and controlling the alarm output interface corresponding to the fault condition to output an alarm signal;
and the alarm module is used for sending out a corresponding prompt signal according to the input interface of the alarm signal.
Furthermore, the mounting frame is also provided with a relay, and the relay is provided with 2 normally closed contacts, 2 normally open contacts, 2 coil contacts and 2 common contacts;
2 normally closed contacts are respectively connected with a vehicle-mounted power interface, 2 normally open contacts are respectively connected with an external power interface, 2 coil contacts are respectively connected with the external power interface, and 2 public contacts are connected with a power end of the switching module through a transformer.
Furthermore, the power supply end and the measuring end of the detection module are respectively connected with 2 common contacts of the relay.
Furthermore, the alarm module is connected with an overvoltage indicator lamp, a ground indicator lamp, a leakage indicator lamp and a buzzer, and the overvoltage indicator lamp, the ground indicator lamp, the leakage indicator lamp and the buzzer are respectively connected with the overvoltage alarm interface, the ground alarm interface, the leakage alarm interface and the sound alarm interface of the alarm module.
Has the advantages that: adopt the utility model discloses a novel external power supply wall box can improve the electric current bearing capacity of power supply wall box, satisfies the mobile unit's demand, can carry out external power supply automatically and switch, and convenient operation can carry out fault detection to external power supply and mobile unit, improves the security, plays the guard action to load circuit, equipment.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a rear view of FIG. 2;
fig. 4 is a schematic block diagram of the circuit of the present invention;
fig. 5 is a circuit connection diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the following examples and drawings.
As shown in fig. 1, fig. 2 and fig. 3, a novel external power supply wall box is provided with a box body 1, a wall surface of the box body 1 is provided with an external power supply interface 9, a vehicle-mounted power supply interface 10 and a power output interface 11, a mounting frame 2 is arranged inside the box body, a control circuit board 5 is sequentially arranged on the mounting frame 2 from top to bottom, a filter 4 with large bearing current and 2 contactors 3 are arranged, the external power supply interface 9 and the vehicle-mounted power supply interface 10 are respectively connected with the power output interface 11 through the contactors 3 and the filter 4 in sequence, the control circuit board 5 is used for detecting the power supply conditions of the external power supply interface 9 and the vehicle-mounted power supply interface 10, and when the external power supply interface 9 is connected with an external power supply, the control circuit board 5 is communicated with the power output interface 11 and the.
Specifically, in order to improve the current carrying capacity, the contactor 3 and the filter 4 are both of a type carrying large current, for example, the contactor 3 is a contactor of a type LC1D95M7C, and the filter 4 is S320-150 KS. In order to install the electrical equipment with larger volume in a limited space, the electrical equipment is arranged in parallel so as to save the installation space.
The control circuit board 5 can detect the voltage of the external power interface 9 and the vehicle-mounted power interface 10, when the external power interface 9 is connected with an external power supply, the control circuit board 5 controls the circuit between the external power interface 9 and the power output interface 11 to be conducted through the contactor 3, and disconnects the circuit between the vehicle-mounted power interfaces 10 through the contactor 3 connected with the vehicle-mounted power interface 10, so that the external power supply is switched.
In this embodiment, preferably, as shown in fig. 3, the mounting frame 2 is provided with 3 mounting plates 6, the 3 mounting plates 6 are arranged in parallel inside the box body 1, the two sides of the mounting plates 6 are fixed to the inner wall of the box body 1, and the contactor 3, the filter 4 and the control circuit board 5 are sequentially mounted on the 3 mounting plates 6. A terminal 8 is provided on the mounting plate 3 on which the filter 4 is located, and the contactor 3 is connected to the filter 4 through the terminal 8.
Specifically, 3 mounting plates 6 divide the interior of the box body 1 into 3 spaces, wherein the lowermost space is the largest and is used for mounting the contactor, the middle space is smaller and is used for mounting the filter 4, and the uppermost space is the smallest and is used for mounting the control circuit board 5, so that the electrical equipment can be conveniently mounted in the limited space.
In this embodiment, preferably, as shown in fig. 3, a plurality of support columns 7 are connected to the mounting plate 6 located at the middle position of the box body 1, one end of each support column 7 is fixed to the mounting plate 6, and the other end of each support column 7 passes through the mounting plate 6 located below downwards and is fixed to the bottom of the box body 1.
Particularly, the supporting column 7 can support the mounting plate 6 for mounting the filter 4, and the firmness and the safety of the equipment are improved.
In this embodiment, as shown in fig. 4 and 5, a lightning protector U1 is preferably provided between the filter 4 and the contactor 3. The lightning protection device U1 can play a protective role in lightning electricity, and the safety of equipment is improved.
In this embodiment, a leakage protector U2 is preferably disposed between the filter 4 and the power output interface 11. The leakage protector U2 can protect the circuit in the case of leakage.
In the present embodiment, preferably, as shown in fig. 4, the control circuit board 5 is provided with:
the switching module is used for detecting the power supply conditions of the external power supply interface 9 and the vehicle-mounted power supply interface 10 and controlling the contactor 3 to switch the power supply loop according to the power supply conditions;
the detection module is used for measuring the voltages of the external power supply interface 9 and the vehicle-mounted power supply interface 10, determining a fault condition according to the voltages, and controlling an alarm output interface corresponding to the fault condition to output an alarm signal;
and the alarm module is used for sending out a corresponding prompt signal according to the input interface of the alarm signal.
Specifically, the switching module may detect voltage values of the external power interface 9 and the vehicle-mounted power interface 10, so as to determine whether the external power interface 9 is connected with an external power source, and when the external power interface 9 is connected with the external power source, the switching control module controls the contactor 3 to turn on a power supply loop between the external power interface 9 and the power output interface 11, and turn off the power supply loop between the vehicle-mounted power interface 10 and the power output interface 11, thereby implementing automatic switching of the power supply loop.
The detection module can determine the state of the power supply by detecting the voltage of the power supply and determine the fault condition according to the state of the power supply. The detection module is provided with a plurality of alarm output interfaces, and each alarm output interface corresponds to a fault condition.
And all the alarm output interfaces of the detection module are correspondingly connected with the input interfaces of the alarm module one by one. The detection module controls the corresponding alarm output interface to output an alarm signal according to the fault condition. The alarm module sends out corresponding prompt signals according to the input interface which receives the alarm signals, thereby achieving the functions of sending out alarms and prompting fault types.
In this embodiment, preferably, as shown in fig. 5, a relay 16 is further disposed on the mounting bracket 2, and the relay 16 is provided with 2 normally closed contacts, 2 normally open contacts, 2 coil contacts and 2 common contacts;
2 normally closed contacts are respectively connected with the vehicle-mounted power supply interface 10, 2 normally open contacts are respectively connected with the external power supply interface 9, 2 coil contacts are respectively connected with the external power supply interface 9, and 2 public contacts are connected with the power supply end of the switching module through the transformer U3.
Specifically, since the vehicle-mounted power interface 10 is fixedly connected to the vehicle-mounted power supply, the vehicle-mounted power supply can supply power to the control circuit board 5 in real time through the normally closed switch of the relay 16, so as to ensure the operation of the control circuit board 5. When an external power supply is connected, the normally open switch of the relay 16 is closed, so that the power supply of the control circuit board 5 is switched to the external power supply, and the electric quantity consumption of the vehicle-mounted power supply is reduced.
In this embodiment, it is preferable that the power terminal and the measurement terminal of the detection module are respectively connected to 2 common contacts of the relay 16.
Specifically, when no external power supply is connected, the detection module can detect the state of the vehicle-mounted power supply in real time so as to monitor the fault condition of the vehicle-mounted power supply. When the external power supply is connected, the detection module can detect the state of the external power supply so as to monitor the external power supply and play a role in real-time protection.
In this embodiment, as shown in fig. 4 and 5, preferably, the alarm module is connected to an overvoltage indicator 12, a ground indicator 13, a leakage indicator 14 and a buzzer 15, and the overvoltage indicator 12, the ground indicator 13, the leakage indicator 14 and the buzzer 15 are respectively connected to the overvoltage alarm interface, the ground alarm interface, the leakage alarm interface and the sound alarm interface of the alarm module.
Specifically, the alarm module may select a corresponding alarm interface output signal according to the input interface receiving the alarm signal, so as to control the buzzer 15 to sound an alarm, and control the corresponding indicator light to light up to indicate the fault type.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (9)
1. The utility model provides a novel circumscribed power wall box which characterized in that: be provided with the box body, the wall of this box body is provided with external power source interface, vehicle mounted power source interface and power output interface, and inside is provided with the mounting bracket, and this mounting bracket from the top down has set gradually control circuit board to and bear electric current big wave filter and 2 contactors, external power source interface, vehicle mounted power source interface are respectively through contactor, wave filter connection power output interface in proper order, control circuit board is used for detecting the power supply condition of external power source interface, vehicle mounted power source interface, and when external power source interface connection external power source, control circuit board passes through contactor intercommunication power output interface and external power source interface.
2. A novel external power supply wall box according to claim 1, characterized in that: the mounting bracket is provided with 3 mounting panels, and 3 mounting panels set up side by side inside the box body, and the both sides of mounting panel are fixed with the box body inner wall, contactor, wave filter and control circuit board are installed respectively on 3 mounting panels.
3. A novel external power supply wall box according to claim 2, characterized in that: the mounting plate located in the middle of the box body is connected with a plurality of support columns, one ends of the support columns are fixed with the mounting plate, and the other ends of the support columns downwards penetrate through the mounting plate located below and are fixed with the bottom of the box body.
4. A novel external power supply wall box according to claim 1, characterized in that: and a lightning protection device is arranged between the filter and the contactor.
5. A novel external power supply wall box according to claim 1, characterized in that: and an electric leakage protector is arranged between the filter and the power output interface.
6. A novel external power supply wall box according to claim 1, characterized in that said control circuit board is provided with:
the switching module is used for detecting the power supply condition of each interface of the external power supply interface and the vehicle-mounted power supply interface and controlling the contactor to switch according to the power supply condition;
the detection module is used for measuring the voltages of the external power supply interface and the vehicle-mounted power supply interface, determining a fault condition according to the voltages and controlling the alarm output interface corresponding to the fault condition to output an alarm signal;
and the alarm module is used for sending out a corresponding prompt signal according to the input interface of the alarm signal.
7. The novel external power supply wall box according to claim 6, wherein a relay is further arranged on the mounting frame, and the relay is provided with 2 normally closed contacts, 2 normally open contacts, 2 coil contacts and 2 common contacts;
2 normally closed contacts are respectively connected with a vehicle-mounted power interface, 2 normally open contacts are respectively connected with an external power interface, 2 coil contacts are respectively connected with the external power interface, and 2 public contacts are connected with a power end of the switching module through a transformer.
8. A novel external power supply wall box according to claim 7, characterized in that the power supply end and the measuring end of the detection module are respectively connected with 2 common contacts of the relay.
9. A novel external power supply wall box according to claim 6, characterized in that the alarm module is connected with an overvoltage indicator lamp, a ground indicator lamp, a leakage indicator lamp and a buzzer, and the overvoltage indicator lamp, the ground indicator lamp, the leakage indicator lamp and the buzzer are respectively connected with the overvoltage alarm interface, the ground alarm interface, the leakage alarm interface and the sound alarm interface of the alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920963702.8U CN210212288U (en) | 2019-06-25 | 2019-06-25 | Novel external power supply wall box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920963702.8U CN210212288U (en) | 2019-06-25 | 2019-06-25 | Novel external power supply wall box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210212288U true CN210212288U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920963702.8U Active CN210212288U (en) | 2019-06-25 | 2019-06-25 | Novel external power supply wall box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210212288U (en) |
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2019
- 2019-06-25 CN CN201920963702.8U patent/CN210212288U/en active Active
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