CN220895433U - Overload protection structure of switching power supply - Google Patents
Overload protection structure of switching power supply Download PDFInfo
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- CN220895433U CN220895433U CN202322372798.XU CN202322372798U CN220895433U CN 220895433 U CN220895433 U CN 220895433U CN 202322372798 U CN202322372798 U CN 202322372798U CN 220895433 U CN220895433 U CN 220895433U
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- power supply
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- circuit breaker
- switching power
- air circuit
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- 230000004075 alteration Effects 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of switching power supplies, and discloses an overload protection structure of a switching power supply, which comprises an air circuit breaker body, wherein a first wiring end part and a second wiring end part are respectively fixed at two ends of the air circuit breaker body, limiting components are detachably arranged at the ends of the first wiring end part and the second wiring end part, each limiting component comprises a limiting part and a pressing part, the pressing part is arranged on the limiting part, and the pressing part is used for pressing the connecting end parts of connecting wires. When the connecting wire is connected, the end part of the connecting wire can pass through the perforation and then is inserted into the wiring hole, the limiting plate is used for blocking the connecting wire, a distance between the connecting wire and the wiring end of the connecting wire is always perpendicular to the wiring hole, the wiring accuracy can be improved, in addition, the threaded rod can be rotated, the abutting plate is used for abutting against one end of the connecting wire connected with the air circuit breaker body, and the connecting wire is prevented from being disconnected with the air circuit breaker body after the screw loosens.
Description
Technical Field
The utility model belongs to the technical field of switching power supplies, and particularly relates to an overload protection structure of a switching power supply.
Background
The switch power supply is a high-frequency electric energy conversion device for converting voltage and current, and an overload protection structure is arranged for protecting the switch power supply in order to avoid danger caused by overload of the switch power supply, wherein an air circuit breaker is one of protection devices for protecting the switch power supply which is commonly used.
When the existing air circuit breaker is used, the existing air circuit breaker is firstly required to be connected in a circuit of a switching power supply, specifically, when the existing air circuit breaker is connected, the connecting end of a connecting wire is inserted into a wiring hole of the air circuit breaker, then a screw is screwed to be abutted against the connecting end of the connecting wire, but in the use process, the screw is loosened sometimes, the electric connection between the air circuit breaker and the switching power supply is affected, accidents are easy to occur, and based on the overload protection structure of the switching power supply, the connection of the double fixed connecting wire and the air circuit breaker is realized, and the improvement of safety is very important.
Disclosure of utility model
The utility model aims to provide an overload protection structure of a switching power supply, which aims to solve the problem that when the existing connecting wire provided in the background art is connected with an air circuit breaker, the electric connection between the air circuit breaker and the switching power supply is influenced by the fact that a screw is used for abutting against the air circuit breaker singly if looseness occurs, and accidents are easy to occur.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a switching power supply's overload protection structure, includes the air circuit breaker body, the both ends of air circuit breaker body are fixed with first wiring tip and second wiring tip respectively, the tip of first wiring tip and second wiring tip all detachably is equipped with the restriction subassembly, the restriction subassembly includes spacing part and supports the pressure part, support the pressure part and locate on the spacing part, just support the connection tip that the pressure part is used for supporting the pressure connecting wire.
Preferably, the limiting part is a limiting plate, and a through hole for the connecting wire to penetrate is formed in the limiting plate.
Preferably, the pressing portion includes:
The threaded rod is screwed on the limiting plate, and the inner end of the threaded rod extends into the through hole;
And the retaining plate is arranged at the inner end of the threaded rod.
Preferably, the end middle positions of the first wiring end part and the second wiring end part are respectively fixed with a fixed column, the axial direction of the fixed column is provided with a thread groove, the middle position of the lower end surface of the limiting plate is fixed with a connecting column, and the outer wall of the connecting column is provided with external threads.
Preferably, the length of the connecting column is longer than the length of the fixing column.
Preferably, a screw is mounted at the outer end of the threaded rod.
Preferably, the outer walls of the first wiring end part and the second wiring end part are connected with screws in a screwing mode, a power gate is arranged on the air circuit breaker body, and the power gate is connected with a flashboard.
Preferably, mounting lugs are fixed on two sides of the air circuit breaker body, and mounting lugs are arranged on the mounting lugs.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The perforation and the corresponding wiring hole are positioned on the same line, when the connecting lines are connected, the end parts of the connecting lines can pass through the perforation and then are inserted into the wiring hole, the limiting plate is utilized to block the connecting lines, the connecting lines can be ensured to be always perpendicular to the wiring hole at a certain distance from the wiring ends, and the wiring accuracy can be improved.
(2) According to the utility model, after the wiring end of the connecting wire is connected with the air circuit breaker body, the threaded rod can be rotated, the abutting plate is abutted against one end of the connecting wire connected with the air circuit breaker body, double limitation is realized by matching with the fastening of the screw, and the connecting wire and the air circuit breaker body can be prevented from being disconnected after the screw is loosened.
(3) When the limiting component is installed, the connecting column provided with the external thread 7 is screwed into the axially-opened thread groove of the fixed column, so that the installation is convenient and quick, and the detachable connection is convenient for the free installation and detachment of the limiting component
Drawings
FIG. 1 is an external view of the present utility model;
FIG. 2 is a top view of the limiting plate of the present utility model;
FIG. 3 is a top view of the fixing post of the present utility model;
In the figure: 1. an air circuit breaker body; 2. a first terminal portion; 3. a second terminal portion; 4. a screw; 5. fixing the column; 6. a limiting plate; 7. an external thread; 8. a threaded rod; 9. a power gate; 10. a flashboard; 11. mounting lugs; 12. a mounting hole; 13. a connecting column; 14. perforating; 15. a retaining plate; 16. a thread groove; 17. screwing the hand.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Fig. 1 is an external view of the present utility model, as shown in the drawing, the overload protection structure of the switching power supply includes an air circuit breaker body 1, the air circuit breaker is a switch which can be automatically opened whenever the current in the circuit exceeds the rated current, after the air circuit breaker body 1 is connected with the switching power supply, the air circuit breaker body 1 can automatically open after the switching power supply is overloaded, so as to protect the switching power supply, a power gate 9 is arranged on the air circuit breaker body 1, a flashboard 10 is connected on the power gate 9, a first wiring end 2 and a second wiring end 3 are respectively fixed at two ends of the air circuit breaker body 1, wiring holes are respectively arranged at two sides of the ends of the first wiring end 2 and the second wiring end 3, screws 4 opposite to the wiring holes are screwed on the outer walls of the first wiring end 2 and the second wiring end 3, and when the air circuit breaker body 1 is connected with a connecting wire of the switching power supply, the connecting pins in the air circuit breaker body 1 are pressed by the screws 4.
Further, mounting lugs 11 are fixed to both sides of the air circuit breaker body 1, and mounting holes 12 are formed in the mounting lugs 11.
Specifically, when the air circuit breaker body 1 is mounted, the screw end portion may be fastened through the mounting hole 12 in the mounting lug 11.
Referring to fig. 1, the ends of the first terminal 2 and the second terminal 3 are detachably provided with a limiting component, the limiting component includes a limiting portion and a pressing portion, the pressing portion is disposed on the limiting portion, and the pressing portion is used for pressing the connecting end of the connecting wire.
In a specific embodiment of the present utility model, as shown in fig. 2, the limiting portion is a limiting plate 6, a through hole 14 for penetrating a connecting wire is formed in the limiting plate 6, the through hole 14 and a corresponding wire connecting hole are located on a same line, when the connecting wire is connected, an end portion of the connecting wire can be inserted into the wire connecting hole after passing through the through hole 14, the connecting wire is blocked by the limiting plate 6, a distance between the connecting wire and a terminal of the connecting wire is always perpendicular to the wire connecting hole, and the accuracy of the wire connecting can be improved.
In one embodiment of the present utility model, referring to fig. 1 to 2, the pressing portion includes:
The threaded rod 8 is screwed on the limiting plate 6, and the inner end of the threaded rod 8 extends into the through hole 14;
and a retaining plate 15, the retaining plate 15 being mounted to the inner end of the threaded rod 8.
Through the technical scheme:
When the air circuit breaker is used, after the wiring end of the connecting wire is connected to the air circuit breaker body 1, the threaded rod 8 can be rotated, the end, connected with the air circuit breaker body 1, of the connecting wire is abutted against by the abutment plate 15, double limitation is realized by matching with the fastening of the screw 4, and the connecting wire and the air circuit breaker body 1 are disconnected after the screw 4 is loosened can be avoided.
Wherein, install the twist hand 17 at the outer tip of threaded rod 8, through twist hand 17 rotation threaded rod 8, the hand application of force of being convenient for is comparatively convenient.
Referring to fig. 1 and 3, fixing columns 5 are fixed at the middle positions of the first terminal 2 and the second terminal 3, screw grooves 16 are formed in the axial direction of the fixing columns 5, connecting columns 13 are fixed at the middle positions of the lower end faces of limiting plates 6, and external threads 7 are formed in the outer walls of the connecting columns 13.
Through the technical scheme:
When the limiting assembly is installed in use, the connecting column 13 provided with the external threads 7 is screwed into the axially-arranged thread groove 16 of the fixing column 5, the installation is convenient and quick, and the detachable connection is convenient for the free installation and detachment of the limiting assembly.
Further, the length of the connection post 13 is longer than that of the fixing post 5.
Specifically, by changing the depth to which the connection post 13 is screwed into the fixing post 5, the interval between the limit plate 6 and the air circuit breaker body 1 can be adjusted.
Secondly, when the through hole 14 and the corresponding wiring hole are not in a line, the limiting plate 6 can be rotated, and the connection of the connecting wire can be performed after the through hole 14 and the corresponding wiring hole are adjusted to be in a line.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An overload protection structure of a switching power supply, which is characterized in that: including air circuit breaker body (1), the both ends of air circuit breaker body (1) are fixed with first wiring tip (2) and second wiring tip (3) respectively, the tip of first wiring tip (2) and second wiring tip (3) all is detachably equipped with the restriction subassembly, the restriction subassembly includes spacing part and supports the pressure part, it locates on the spacing part to support the pressure part, just it is used for supporting the connecting end of pressing the connecting wire to support the pressure part.
2. The overload protection structure of a switching power supply as claimed in claim 1, wherein: the limiting part is a limiting plate (6), and a through hole (14) for the connecting line to penetrate is formed in the limiting plate (6).
3. The overload protection structure of a switching power supply as claimed in claim 2, wherein: the pressing portion includes:
The threaded rod (8) is screwed on the limiting plate (6), and the inner end of the threaded rod (8) extends into the perforation (14);
and the retaining plate (15) is arranged at the inner end of the threaded rod (8).
4. The overload protection structure of a switching power supply as claimed in claim 2, wherein: the connecting device is characterized in that fixing columns (5) are fixed at the middle positions of the first wiring end part (2) and the second wiring end part (3), screw grooves (16) are formed in the axial direction of the fixing columns (5), connecting columns (13) are fixed at the middle positions of the lower end faces of the limiting plates (6), and external threads (7) are formed in the outer walls of the connecting columns (13).
5. The overload protection structure of a switching power supply as claimed in claim 4, wherein: the length of the connecting column (13) is longer than that of the fixing column (5).
6. A switching power supply overload protection structure according to claim 3, wherein: the outer end part of the threaded rod (8) is provided with a screwing hand (17).
7. The overload protection structure of a switching power supply as claimed in claim 1, wherein: the air circuit breaker is characterized in that the outer walls of the first wiring end part (2) and the second wiring end part (3) are connected with screws (4) in a screwed mode, a power supply gate (9) is arranged on the air circuit breaker body (1), and the power supply gate (9) is connected with a gate plate (10).
8. The overload protection structure of a switching power supply as claimed in claim 1, wherein: both sides of the air circuit breaker body (1) are fixed with mounting lugs (11), and mounting holes (12) are formed in the mounting lugs (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322372798.XU CN220895433U (en) | 2023-09-01 | 2023-09-01 | Overload protection structure of switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322372798.XU CN220895433U (en) | 2023-09-01 | 2023-09-01 | Overload protection structure of switching power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220895433U true CN220895433U (en) | 2024-05-03 |
Family
ID=90872471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322372798.XU Active CN220895433U (en) | 2023-09-01 | 2023-09-01 | Overload protection structure of switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220895433U (en) |
-
2023
- 2023-09-01 CN CN202322372798.XU patent/CN220895433U/en active Active
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