CN219874198U - Low-voltage circuit power-on protection terminal - Google Patents
Low-voltage circuit power-on protection terminal Download PDFInfo
- Publication number
- CN219874198U CN219874198U CN202320202165.1U CN202320202165U CN219874198U CN 219874198 U CN219874198 U CN 219874198U CN 202320202165 U CN202320202165 U CN 202320202165U CN 219874198 U CN219874198 U CN 219874198U
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- bridge rectifier
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- base plate
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- 239000003990 capacitor Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 2
- 210000005069 ears Anatomy 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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Abstract
The utility model provides a circuit connection protection terminal for a low-voltage circuit, and belongs to the field of circuit protection. And more particularly to a termination structure for protecting a circuit when a circuit is connected to a low-voltage circuit. The control circuit comprises a transformer, a bridge rectifier, a resistor, a potentiometer, a capacitor and a diode, wherein an alternating current input end of the bridge rectifier is connected with a winding of the transformer in parallel, the resistor and the potentiometer are connected on an anode output end and a cathode output end of the bridge rectifier in series, one end of the resistor is connected with a movable contact of the potentiometer, the other end of the bridge rectifier is connected with the capacitor in parallel with an anode of the diode, an anode output of the bridge rectifier is connected with a cathode of the capacitor C1, a double-pole double-throw relay and a control module are arranged at the tail end of the control circuit, and the control module is connected with the double-pole double-throw relay and performs sealing protection on a circuit board through sealing arrangement.
Description
Technical Field
The utility model provides a circuit connection protection terminal for a low-voltage circuit, and belongs to the field of circuit protection. And more particularly to a termination structure for protecting a circuit when a circuit is connected to a low-voltage circuit.
Background
At present, when a power consumer uses commercial power, the commercial power is generally directly led into the house from a public transformer, and because the neutral point of part of the public transformers in the power system is grounded, the electric shock accident can occur when the power consumer contacts a single power cable in the house, and personal injury is caused; in the prior art, in order to improve the electricity safety of a user, the traditional electric power protection device generally utilizes a transformer to realize the electric isolation between user side cable and electric power system equipment, and in indoor electricity utilization, a protection plug is installed, the existing protection plug needs to be integrally detached for wiring when wiring, independent wiring installation cannot be carried out, after the integral detachment, the installation is difficult, part of components are exposed, the follow-up use is affected, and in addition, the existing tightness is poor, and sealing arrangement cannot be formed.
Disclosure of Invention
The utility model provides a protective device for connecting wires by independently separating the terminals. Simple structure and convenient use.
The utility model discloses a power-on protection terminal of a low-voltage circuit, which is realized in such a way that: the control circuit comprises a transformer, a bridge rectifier, a resistor, a potentiometer, a capacitor and a diode, wherein an alternating current input end of the bridge rectifier is connected with windings of the transformer in parallel, the resistor and the potentiometer are connected in series on positive and negative output ends of the bridge rectifier, one end of the resistor is connected with a movable contact of the potentiometer, the other end of the bridge rectifier is connected with a positive electrode of the capacitor and a positive electrode of the diode in parallel, a positive electrode output of the bridge rectifier is connected with a negative electrode of the capacitor C1 in parallel, the tail end of the control circuit is provided with a double-pole double-throw relay, a control module, the control module is connected with the double-pole double-throw relay, the connection shell comprises a main shell, a base plate, a protective cover and a wiring cover, the main shell is arranged on one side of the base plate and fastened by mounting screws, the protective cover is arranged on the upper side of the main shell, the upper side of the main shell is provided with an opening, the protective cover is of a transparent structure, the circuit board is arranged in the main shell, the circuit board is fixedly arranged on the base plate, the main shell is provided with a wiring cover, the bottom of the main shell is provided with a notch, the two sides of the main shell is symmetrically provided with mounting grooves, the wiring cover is correspondingly arranged on the two sides, the mounting lug is correspondingly arranged in the main shell, the wiring cover is correspondingly provided with the mounting lug, the mounting lug is correspondingly arranged in the wiring cover is correspondingly arranged on the wiring cover, and extends to the side of the main shell, and the wiring cover is correspondingly arranged on the side wall, and the side wall is correspondingly arranged on the side wall, and is provided with a sealing cover, and a sealing cover is arranged on the side, and correspondingly extends into the wiring cover;
a sealing strip is arranged between the base plate and the main shell;
the side wall of the wiring cover is provided with a rubber pad, the wiring hole is of a U-shaped structure, and an insulating rubber sleeve is arranged inside the wiring hole;
the inner cover body is arranged in the main shell and corresponds to the protective cover;
the inner cover body is of a cover body structure formed by weaving metal meshes, and the circuit board is provided with an electricity connection indicator lamp and corresponds to the protective cover;
the lower edge of the main shell extends to one side of the base plate and is abutted against the lower edge of the base plate.
The beneficial effects are that:
1. sealing protection of the circuit board is carried out through sealing arrangement;
2. the protection of the on-off of the circuit is carried out through the bridge rectifier and the transformer;
3. simple structure and convenient use.
Drawings
Fig. 1 is a perspective view of a circuit protection terminal for a low-voltage circuit according to the present utility model.
Fig. 2 is a side view of a circuit protection terminal of the present utility model.
Fig. 3 is a schematic structural diagram of a circuit protection terminal for a low-voltage circuit according to the present utility model.
Fig. 4 is a circuit diagram of a circuit protection terminal for a circuit of the present utility model.
In the accompanying drawings:
1. a main housing; 2. a base plate; 3. a protective cover; 4. a junction cover; 5. a connecting column; 6. an inner cover; 7. a lead-out terminal; 8. a coil; 9. a connection terminal; 10. a circuit board.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
According to the figures 1-4: the utility model discloses a power-on protection terminal of a low-voltage circuit, which is realized in such a way that: comprises a connecting shell and a control circuit, wherein the control circuit comprises a transformer, a bridge rectifier, a resistor, a potentiometer, a capacitor and a diode, an alternating current input end of the bridge rectifier is connected with a winding of the transformer in parallel, the resistor and the potentiometer are connected in series on an anode output end and a cathode output end of the bridge rectifier, one end of the resistor is connected with a movable contact of the potentiometer, the other end of the bridge rectifier is connected with the capacitor and an anode of the diode in parallel, an anode output of the bridge rectifier is connected with a cathode of a capacitor C1, the tail end of the control circuit is provided with a double-pole double-throw relay and a control module, the control module is connected with the double-pole double-throw relay, the connecting shell comprises a main shell 1, a base plate 2, a protective cover 3 and a wiring cover 4, the main shell 1 is arranged on one side of the base plate 2 and fastened by mounting screws, the protective cover 3 is covered on the upper side of the main shell 1 and provided with an opening, the protective cover 3 is of a transparent structure, the circuit board 10 is arranged in the main shell 1, the circuit board 10 is fixedly arranged on the base plate 2, a control circuit is arranged on the circuit board 10, the main shell 1 is provided with a wiring cover 4, the wiring cover 4 is covered and arranged at the bottom of the main shell 1, the bottom of the main shell 1 is provided with a notch, mounting grooves are symmetrically arranged on two sides of the notch, mounting lugs are arranged on two sides of the wiring cover 4 and correspondingly arranged in the mounting grooves, the two sides of the wiring cover 4 are provided with side walls extending to the main shell 1 through screw fastening, the side walls are inclined planes, guide plate groups corresponding to the side walls of the wiring cover 4 are arranged in the notch of the main shell 1, the guide plate groups are obliquely arranged and correspondingly attached to the side walls of the wiring cover 4, two groups of mounting lugs are arranged on the lower edge of the wiring cover 4 and correspondingly attached to the bottom of the main shell 1, the wiring cover 4 is provided with wiring holes through screw fastening and sealing, a wiring terminal 9 is arranged in the main shell 1 and correspondingly extends into the wiring cover 4;
a sealing strip is arranged between the base plate 2 and the main shell 1;
the side wall of the wiring cover 4 is provided with a rubber pad, the wiring hole is of a U-shaped structure, and an insulating rubber sleeve is arranged inside the wiring hole;
the inner cover body 6 is arranged in the main shell 1 and corresponds to the protective cover 3;
the inner cover body 6 is a cover body structure formed by weaving metal meshes, and the circuit board 10 is provided with an electricity connection indicator lamp and corresponds to the protective cover 3;
the lower edge of the main shell 1 extends to one side of the base plate 2 and is abutted against the lower edge of the base plate 2;
through the wiring hole on passing through wiring lid 4 with the wire, connect fixedly through binding post 9, then form the connection, protect through the electrical components who is provided with in the circuit board 10, rearmounted double-pole double-throw relay can control and adjust, cover the wiring lid 4 and close and place on the main casing 1, fasten the lid through the screw and close, form the wiring lid 4 and close the sealing of main casing 1, avoid the pine of wiring end to take off and expose, improve the connection leakproofness, reach the purpose that carries out wiring terminal circular telegram protection.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (6)
1. The utility model provides a low voltage circuit meets electric protection terminal, includes connection casing, control circuit, its characterized in that: the control circuit comprises a transformer, a bridge rectifier, a resistor, a potentiometer, a capacitor and a diode, wherein an alternating current input end of the bridge rectifier is connected with windings of the transformer in parallel, the resistor and the potentiometer are connected on the positive and negative output ends of the bridge rectifier in series, one end of the resistor is connected with a movable contact of the potentiometer, the other end of the bridge rectifier is connected with the capacitor and the positive electrode of the diode in parallel, the positive output end of the bridge rectifier is connected with the negative electrode of the capacitor C1, the tail end of the control circuit is provided with a double-pole double-throw relay, the control module is connected with the double-pole double-throw relay, the connection shell comprises a main shell (1), a base plate (2), a protective cover (3) and a wiring cover (4), the main shell (1) is arranged on one side of the base plate (2) and fastened by mounting screws, the protective cover (3) is covered on the upper side of the main shell (1), the protective cover (3) is of a transparent structure, the circuit board (10) is arranged in the main shell (1) and fixedly arranged on the base plate (2), the control circuit board (10) is provided with a control circuit, the main shell (1) is provided with wiring covers (1) and corresponding wiring covers (4) are arranged on two sides, the mounting grooves (4) are arranged on the two sides of the main shell (1) and the main shell (4) and the wiring cover (4) are symmetrically arranged on the two sides, the wiring lid (4) both sides are provided with the lateral wall that extends to main casing (1), the lateral wall sets up for the inclined plane, be provided with the deflector group that corresponds with wiring lid (4) lateral wall in main casing (1) breach, the deflector group sets up for the slant, and correspond the laminating with wiring lid (4) lateral wall, be provided with two sets of installation ears down along wiring lid (4), installation ear and main casing (1) bottom surface correspond the laminating, and seal through the screw fastening, wiring lid (4) bottom is provided with the wiring hole, be provided with binding post (9) in main casing (1), and correspond to extend to in wiring lid (4).
2. The low voltage circuit power protection terminal of claim 1, wherein: a sealing strip is arranged between the base plate (2) and the main shell (1).
3. The low voltage circuit power protection terminal of claim 1, wherein: the wiring cover (4) lateral wall is provided with the rubber pad, and the wiring hole is U-shaped structure, and inside is provided with insulating gum cover.
4. The low voltage circuit power protection terminal of claim 1, wherein: an inner cover body (6) is arranged in the main shell body (1) and corresponds to the protective cover (3).
5. The low voltage circuit power protection terminal of claim 4, wherein: the inner cover body (6) is a cover body structure formed by weaving metal meshes, and the circuit board (10) is provided with an electricity connection indicator lamp and corresponds to the protective cover (3).
6. The low voltage circuit power protection terminal of claim 1, wherein: the lower edge of the main shell (1) extends to one side of the base plate (2) and is abutted against the lower edge of the base plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320202165.1U CN219874198U (en) | 2023-02-14 | 2023-02-14 | Low-voltage circuit power-on protection terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320202165.1U CN219874198U (en) | 2023-02-14 | 2023-02-14 | Low-voltage circuit power-on protection terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219874198U true CN219874198U (en) | 2023-10-20 |
Family
ID=88338781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320202165.1U Active CN219874198U (en) | 2023-02-14 | 2023-02-14 | Low-voltage circuit power-on protection terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219874198U (en) |
-
2023
- 2023-02-14 CN CN202320202165.1U patent/CN219874198U/en active Active
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