CN218678862U - Self-protection driving power supply for broken line - Google Patents
Self-protection driving power supply for broken line Download PDFInfo
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- CN218678862U CN218678862U CN202223181866.6U CN202223181866U CN218678862U CN 218678862 U CN218678862 U CN 218678862U CN 202223181866 U CN202223181866 U CN 202223181866U CN 218678862 U CN218678862 U CN 218678862U
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Abstract
The utility model relates to a power technical field especially relates to a broken string self preservation protects drive power supply, is applied to the power supply of weak current power supply unit in the pit, include: the intrinsically safe flameproof shell comprises a cover plate and a bottom cavity, wherein a first input port, a second output port, a first output port and a second output port are formed in the side wall of the bottom cavity; the vary voltage module is located the bottom cavity, includes: the transformer comprises a main voltage transformation circuit, a standby voltage transformation circuit, a voltage transformation input end and a voltage transformation output end which are connected in parallel, wherein the voltage transformation input end is connected with a first input port and a second input port, and the voltage transformation output end is connected with a first output port and a second output port; the clamping module is positioned in the bottom cavity, is connected with the voltage transformation output end and comprises a TVS (transient voltage suppressor) tube and an anti-detonator circuit which are connected in parallel; connect detection module, be located the bottom chamber, connect first delivery outlet and second delivery outlet, include: the device comprises a detection contact and a control mechanism, wherein one end of the control mechanism is connected with the detection contact, and the other end of the control mechanism is connected with a voltage transformation output end; the safety of underground power utilization is improved.
Description
Technical Field
The utility model relates to the technical field of power, especially, relate to a broken string self preservation protects drive power supply.
Background
Traditional drive power supply only can play the effect of step-down steady voltage, because the environment in the pit is more abominable, though can provide a stable voltage source, in case vary voltage module or cable go wrong, can't effectively cut off the protection, consequently has certain potential safety hazard.
Therefore, how to avoid such a potential safety hazard is a technical problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been made to provide a disconnection self-protection driving power supply that overcomes or at least partially solves the above-mentioned problems.
The utility model provides a broken string self preservation protects drive power supply is applied to the power supply of weak current power supply unit in the pit, include:
this ann's flame proof casing includes: the sealing ring embedding groove is formed in the cover plate, the sealing ring is embedded in the sealing ring embedding groove, and a first input port, a second output port, a first output port and a second output port are formed in the side wall of the bottom cavity;
a voltage transformation module located within the bottom cavity, comprising: the transformer comprises a main transformer circuit, a standby transformer circuit, a transformer input end and a transformer output end, wherein the main transformer circuit and the standby transformer circuit are connected in parallel, the transformer input end is connected with a first input port and a second input port, and the transformer output end is connected with a first output port and a second output port;
the clamping module is located in the bottom cavity and connected with the voltage transformation output end, and the clamping module comprises: the TVS tube and the anti-detonator circuit are connected in parallel;
connect detection module, be located the bottom cavity is connected first delivery outlet and second delivery outlet include: the device comprises a detection contact and a control mechanism, wherein one end of the control mechanism is connected with the detection contact, and the other end of the control mechanism is connected with a voltage transformation output end;
and the filtering module is positioned in the bottom cavity and connected between the voltage transformation input end and a grounding end.
Preferably, the control mechanism comprises a linear displacement sensor and a switch, one end of the switch is connected with the detection contact, and the other end of the switch is connected with the voltage transformation output end.
Preferably, the control mechanism further comprises: and the spring is connected between the detection contact and the switch so as to rebound the switch when the detection contact is reset.
Preferably, the surface temperature detection module, attached to the voltage transformation module, includes:
the chip thermistor comprises a chip thermistor and a control circuit, wherein the control circuit is connected with the voltage transformation output end.
Preferably, the method further comprises the following steps: and the fusing module is connected between the voltage transformation module and the clamping module.
Preferably, the intrinsically safe flameproof shell is provided with a fixed pin.
The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:
the utility model provides a pair of broken string self preservation protects drive power supply is applied to the power supply of weak current power supply unit in the pit, include: the intrinsically safe flameproof shell comprises a cover plate and a bottom cavity, wherein the cover plate is fixed on the bottom cavity through screws, the cover plate is provided with a sealing ring embedding groove, a sealing ring is embedded in the sealing ring embedding groove, and the side wall of the bottom cavity is provided with a first input port, a second output port, a first output port and a second output port; the vary voltage module is located the bottom cavity, includes: the transformer comprises a main transformer circuit, a standby transformer circuit, a transformer input end and a transformer output end, wherein the main transformer circuit and the standby transformer circuit are connected in parallel, the transformer input end is connected with a first input port and a second input port, and the transformer output end is connected with a first output port and a second output port; the clamping module is positioned in the bottom cavity, is connected with the voltage transformation output end and comprises a TVS (transient voltage suppressor) tube and an anti-detonator circuit which are connected in parallel; connect detection module, be located the bottom chamber, connect first delivery outlet and second delivery outlet, include: the device comprises a detection contact and a control mechanism, wherein one end of the control mechanism is connected with the detection contact, and the other end of the control mechanism is connected with a voltage transformation output end; the filtering module is located in the bottom cavity and connected between the voltage transformation input end and the grounding end, and unsafe power utilization conditions are effectively protected through the clamping module and the joint detection module, so that the safety of underground power utilization is improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a schematic structural diagram of a broken line self-protection driving power supply in an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
The embodiment of the utility model provides a disconnection self preservation protects drive power supply is applied to the power supply of weak current power supply unit in the pit, as shown in figure 1, include:
the intrinsically safe flameproof shell 101 comprises a cover plate and a bottom cavity, wherein the cover plate is fixed on the bottom cavity through screws, the cover plate is provided with a sealing ring embedding groove, a sealing ring is embedded in the sealing ring embedding groove, and the side wall of the bottom cavity is provided with a first input port 1011, a second output port 1012, a first output port 1013 and a second output port 1014;
the transformer module 102, located in the bottom cavity 101, includes: the main transformer circuit 1021, the standby transformer circuit 1022, the transformer input end 1023 and the transformer output end 1024, the main transformer circuit 1021 and the standby transformer circuit 1022 are connected in parallel, the transformer input end 1023 is connected with the first input port 1011 and the second input port 1012, and the transformer output port 1024 is connected with the first output port 1013 and the second output port 1014;
the clamping module 103 is located in the bottom cavity 101, and is connected to the voltage transformation output terminal 1024, including: a TVS tube 1031 and a detonator prevention circuit 1032 which are connected in parallel;
a connector detection module 104, located in the bottom chamber 101, connecting the first outlet 1013 and the second outlet 1014, comprising: the detection device comprises a detection contact 1041 and a control mechanism 1042, wherein one end of the control mechanism 1042 is connected with the detection contact 1041, and the other end of the control mechanism 1042 is connected with a voltage transformation output end;
and the filtering module 105 is positioned in the bottom cavity 101 and is connected between the transformation input end 1023 and the ground end.
In a specific embodiment, the flameproof housing 101 includes: a cover plate and a bottom cavity, wherein a first input port 1011, a second input port 1012, a first output port 1013 and a second output port 1014 are arranged on the side wall of the cover plate.
The transformer module 102 adopts a parallel connection mode of a main transformer circuit 1021 and a standby transformer circuit 1022, wherein a transformer input end 1023 is connected with a first input port 1011 and a second input port 1012, and a transformer output end 1024 is connected with a first output port 1013 and a second output port 1014. The driving capability is increased through the main path and the standby path of input and output. Under normal conditions, the main voltage circuit 1021 converts the input 127V ac voltage into 12V dc voltage that can be used by weak current equipment according to the coal mine safety label. When the main voltage transformation circuit 1021 is failed, the standby voltage transformation circuit 1022 can be switched to implement voltage transformation.
The TVS tube used in the clamping module 103 can perform rapid overvoltage protection on the circuit, so that internal damage caused by misconnection of a connected load can be avoided, and the driving power supply is protected to a certain extent; the anti-detonator circuit is used for effectively protecting the lightning condition.
The connector detection module 104 includes a detection contact 1041 and a control mechanism 1042, where the control mechanism 1042 includes: a linear displacement sensor and a switch, wherein the linear displacement sensor is used for detecting whether the detection contact 1041 located at the first output port 1013 or the second output port 1014 moves to the right position, and when the detection contact is moved to the right position, the switch is controlled to be closed, so that the power supply end supplies power to the load through the voltage transformation output end 1024.
In a specific implementation process, when a plug of an input voltage is inserted into a socket, the detection contact 1041 is pressed down, power supply is normal at the moment, namely the linear displacement sensor detects that the detection contact 1041 moves in place, the control switch is closed, power supply is achieved, if the detection contact 1041 is not pressed down or not pressed in place, the plug is considered to be in virtual connection, if power supply is carried out, sparks can occur, and gas explosion is easily caused under a mine. Therefore, the joint detection module 104 can effectively avoid this situation.
The control mechanism 1042 further includes a spring, which is connected between the detection contact 1041 and the switch, and is used to rebound the switch when the detection contact 101 is reset, so as to achieve the open circuit.
The filter module 105 adopts a filter circuit, and since the driving power supply is installed near a transformer or a motor controller and used for controlling system power supply, a casing is often interfered by heavy electromagnetic noise, and a power supply end may affect a voltage reduction and stabilization effect when being provided for the transformer module 102, the filter module 105 is connected between a voltage transformation input end and a grounding end of the pressing module 102 to filter the electromagnetic noise, so that the power output stability is improved, and the service life of the power supply is prolonged.
In an optional embodiment, the method further comprises: the surface temperature detection module 106, attached to the transformer module 102, includes:
the control circuit is connected with the voltage transformation output end 1024 and is used for cutting off power supply of the power supply end when the patch thermistor senses that the temperature is too high, so that module spontaneous combustion caused by failure after aging of the voltage transformation module 102 is avoided, and module burning loss caused by output short circuit or too high load is also avoided. The control circuit specifically adopts a relay.
In an optional embodiment, the method further comprises: and the fusing module 107 is connected between the voltage transformation module 102 and the clamping module 103. This fusing module 107 includes the fuse seat and sets up the fuse in the fuse seat, and wherein this fuse seat has dampproofing dustproof function, prevents that the output from damaging to lead to steam to get into the fuse seat inner chamber and make fuse pin oxidation lead to fusing voltage to rise or lose efficacy.
In an optional embodiment, the intrinsically safe flameproof enclosure 101 can avoid accidents caused by explosion.
In an optional embodiment, the intrinsically safe flameproof housing 101 is further provided with a fixing pin 108 for fixing the intrinsically safe flameproof housing.
The embodiment of the utility model provides an in one or more technical scheme, have following technological effect or advantage at least:
the utility model provides a pair of broken string self preservation protects drive power supply is applied to weak current power supply unit's in the pit power supply, include: the intrinsically safe flameproof shell comprises a cover plate and a bottom cavity, wherein the cover plate is fixed on the bottom cavity through screws, the cover plate is provided with a sealing ring embedding groove, a sealing ring is embedded in the sealing ring embedding groove, and the side wall of the bottom cavity is provided with a first input port, a second output port, a first output port and a second output port; the vary voltage module is located the bottom cavity, includes: the transformer comprises a main transformer circuit, a standby transformer circuit, a transformer input end and a transformer output end, wherein the main transformer circuit and the standby transformer circuit are connected in parallel, the transformer input end is connected with a first input port and a second input port, and the transformer output end is connected with a first output port and a second output port; the clamping module is positioned in the bottom cavity, is connected with the voltage transformation output end and comprises a TVS (transient voltage suppressor) tube and an anti-detonator circuit which are connected in parallel; connect detection module, be located the bottom chamber, connect first delivery outlet and second delivery outlet, include: the device comprises a detection contact and a control mechanism, wherein one end of the control mechanism is connected with the detection contact, and the other end of the control mechanism is connected with a voltage transformation output end; the filtering module is located in the bottom cavity and connected between the voltage transformation input end and the grounding end, unsafe power utilization conditions are effectively protected through the clamping module and the joint detection module, and therefore safety of underground power utilization is improved.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. The utility model provides a disconnected line self preservation protects driving power supply, is applied to the power supply of weak current power supply unit in the pit, its characterized in that includes:
this ampere of flame proof casing includes: the sealing ring embedding groove is formed in the cover plate, the sealing ring is embedded in the sealing ring embedding groove, and a first input port, a second output port, a first output port and a second output port are formed in the side wall of the bottom cavity;
a voltage transformation module located within the bottom cavity, comprising: the transformer comprises a main transformer circuit, a standby transformer circuit, a transformer input end and a transformer output end, wherein the main transformer circuit and the standby transformer circuit are connected in parallel, the transformer input end is connected with a first input port and a second input port, and the transformer output end is connected with a first output port and a second output port;
the clamping module is located in the bottom cavity and connected with the voltage transformation output end, and the clamping module comprises: the TVS tube and the anti-detonator circuit are connected in parallel;
connect detection module, be located the bottom cavity is connected first delivery outlet and second delivery outlet include: the device comprises a detection contact and a control mechanism, wherein one end of the control mechanism is connected with the detection contact, and the other end of the control mechanism is connected with a voltage transformation output end;
and the filtering module is positioned in the bottom cavity and connected between the voltage transformation input end and the grounding end.
2. The self-protecting power supply of claim 1, wherein the control mechanism includes a linear displacement sensor and a switch, one end of the switch is connected to the detection contact, and the other end of the switch is connected to the transformer output.
3. The self-protected power supply of claim 2, wherein said control mechanism further comprises: and the spring is connected between the detection contact and the switch so as to rebound the switch when the detection contact is reset.
4. The self-protection driving power supply for wire breakage of claim 1, wherein the surface temperature detection module, attached to the transformation module, comprises:
the chip thermistor comprises a chip thermistor and a control circuit, wherein the control circuit is connected with the voltage transformation output end.
5. The self-protected power supply of claim 1, further comprising: and the fusing module is connected between the voltage transformation module and the clamping module.
6. The self-protecting drive power supply of claim 1, wherein the intrinsically safe flameproof housing is provided with fixing pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223181866.6U CN218678862U (en) | 2022-11-28 | 2022-11-28 | Self-protection driving power supply for broken line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223181866.6U CN218678862U (en) | 2022-11-28 | 2022-11-28 | Self-protection driving power supply for broken line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218678862U true CN218678862U (en) | 2023-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223181866.6U Active CN218678862U (en) | 2022-11-28 | 2022-11-28 | Self-protection driving power supply for broken line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218678862U (en) |
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2022
- 2022-11-28 CN CN202223181866.6U patent/CN218678862U/en active Active
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