CN221596216U - Current overload protection device - Google Patents
Current overload protection device Download PDFInfo
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- CN221596216U CN221596216U CN202323118156.3U CN202323118156U CN221596216U CN 221596216 U CN221596216 U CN 221596216U CN 202323118156 U CN202323118156 U CN 202323118156U CN 221596216 U CN221596216 U CN 221596216U
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- Prior art keywords
- protection device
- shell
- overcurrent protector
- current overload
- overload protection
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- 230000001012 protector Effects 0.000 claims abstract description 41
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 28
- 230000000694 effects Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of protection devices and discloses a current overload protection device which comprises a protection shell and an overcurrent protector main body, wherein an opening is formed in the front face of the protection shell, the overcurrent protector main body is arranged in the protection shell, a limiting frame is arranged at the lower end of the inner part of the protection shell, radiating fins are arranged between the bottom surface of the inner part of the protection shell and the limiting frame, the lower end of the overcurrent protector main body is clamped into the limiting frame, a through hole is formed in the upper wall of the protection shell, and a compression assembly is arranged on the upper wall of the protection shell through the through hole. This current overload protection device through setting up hold-down subassembly and spacing frame, realizes that overcurrent protector main part installation is dismantled conveniently, through setting up fan and heat radiation fins, guarantees the inside radiating effect of protecting crust.
Description
Technical Field
The utility model relates to the technical field of protection devices, in particular to a current overload protection device.
Background
The overload current refers to a current exceeding a rated current, i.e., a loop current greater than the rated current carrying capacity of the loop conductor is an overcurrent.
The current overload protection device is a device for current overload protection; when it enters the setting state, the relay in the protection will be automatically released, the protector will exit the protection state, the misoperation to the motor in the setting state is effectively prevented, the overcurrent protector is the most common current overload protection device.
Because current overcurrent protector installs the protecting crust additional in its outside generally for the inside overcurrent protector of protection, overcurrent protector installs inside the protecting crust through the fixed screw, and installation operation step is loaded down with trivial details, inconvenient later stage dismantles the maintenance, and overcurrent protector wiring department is under external force pulling effect, drops easily, and because set up the protecting crust and lead to overcurrent protector can not in time effectively dispel the heat, influences result of use, and life, consequently need provide a current overload protection device, in order to solve above-mentioned problem.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a current overload protection device which solves the problems mentioned in the background.
The utility model provides the following technical scheme: a current overload protection device comprising:
the front of the protective shell is provided with an opening;
The overcurrent protector body is arranged inside the protective shell;
The lower end of the inner part of the protective shell is provided with a limit frame, a heat radiation fin is arranged between the bottom surface of the inner part of the protective shell and the limit frame, the lower end of the overcurrent protector main body is clamped into the limit frame, the upper wall of the protective shell is provided with a perforation, and the upper wall of the protective shell is provided with a compression assembly through the perforation;
the compression assembly comprises a compression plate, and the compression plate is arranged on the upper end surface of the overcurrent protector body.
Preferably, the bottom plate front end of spacing frame is provided with the solidus subassembly, the solidus subassembly includes bar fixing base, bar line ball board and fastening bolt, bar fixing base lower extreme and the bottom plate fixed connection of spacing frame, bar line ball board sets up in bar fixing base top, corresponding arc spacing groove has all been seted up to bar fixing base and the opposite one side of bar line ball board.
Preferably, fastening bolts are arranged at two ends of the strip-shaped line pressing plate, and the lower ends of the fastening bolts penetrate through the strip-shaped line pressing plate and are in threaded connection with the strip-shaped fixing seat.
Preferably, the inner wall of the protecting shell, which is close to one end of the opening, is provided with a sliding door, which can slide, the lower end of the sliding door is provided with a strip-shaped notch.
Preferably, positioning holes are formed in two ends of the surface of the upper end of the movable door, and positioning pins matched with the positioning holes are arranged at the front end of the upper wall of the protective shell.
Preferably, the pressing assembly further comprises two limiting columns, a connecting rod and a reset spring, wherein the two limiting columns are respectively arranged at two ends of the surface of the upper end of the pressing plate, the upper ends of the limiting columns penetrate through the through holes and are fixedly connected with the connecting rod, and the reset spring is arranged inside the protecting shell and is located between the pressing plate and the upper wall of the protecting shell.
Preferably, a fan is arranged on the side wall of one side, deviating from the opening, of the protective shell, side plates are fixedly arranged at the lower ends of two sides of the protective shell, and mounting holes are formed in the side plates.
Compared with the prior art, the utility model has the following beneficial effects:
1. This current overload protection device through setting up and compressing tightly the subassembly, upwards pulls the connecting rod, drives the movable platen and reciprocates through spacing post, and reset spring is in compression state this moment, and then in inserting spacing frame with overcurrent protector main part lower extreme card, unclamp the connecting rod, reset spring release energy drives the clamp plate and moves down and compress tightly overcurrent protector main part, guarantees its stability, and easy operation is convenient, labour saving and time saving.
2. This current overload protection device through being provided with the arc spacing groove that bar fixing base and its top were seted up, can effectively play the winding displacement effect, avoids the mutual interference between the circuit, drives bar line ball board through rotating fastening bolt and moves down, can effectively compress tightly the electric wire of connecting overcurrent protector main part, avoids under the external force pulling effect, and the connector lug department that leads to drops.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the current overload protection device of the present utility model;
FIG. 2 is a second schematic diagram of the overall structure of the current overload protection device of the present utility model;
FIG. 3 is a cross-sectional view of a protective housing of the current overload protection apparatus of the present utility model;
Fig. 4 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.
In the figure: 1. a protective shell; 101. a chute; 102. a positioning pin; 2. an overcurrent protector body; 3. a movable door; 301. a bar-shaped notch; 302. positioning holes; 4. a fan; 5. a compression assembly; 501. a pressing plate; 502. a limit column; 503. a connecting rod; 504. a return spring; 6. a limit frame; 601. a heat radiation fin; 7. a wire fixing assembly; 701. a bar-shaped fixing seat; 702. a strip-shaped line pressing plate; 703. and (5) fastening a bolt.
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.
Referring to fig. 1-4, a current overload protection device includes:
The protective shell 1, the front of the protective shell 1 is provided with an opening;
the overcurrent protector comprises an overcurrent protector body 2, wherein the overcurrent protector body 2 is arranged inside a protective shell 1;
A limiting frame 6 is arranged at the lower end of the inner part of the protective shell 1, a radiating fin 601 is arranged between the bottom surface of the inner part of the protective shell 1 and the limiting frame 6, the lower end of the overcurrent protector main body 2 is clamped into the limiting frame 6, a through hole is formed in the upper wall of the protective shell 1, and a compression assembly 5 is arranged on the upper wall of the protective shell 1 through the through hole;
the pressing assembly 5 includes a pressing plate 501, and the pressing plate 501 is provided on the upper end surface of the overcurrent protector main body 2.
Wherein; the bottom plate front end of spacing frame 6 is provided with solidus subassembly 7, and solidus subassembly 7 includes bar fixing base 701, bar line ball board 702 and fastening bolt 703, and bar fixing base 701 lower extreme and the bottom plate fixed connection of spacing frame 6, bar line ball board 702 set up in bar fixing base 701 top, and corresponding arc spacing groove has all been seted up to bar fixing base 701 and bar line ball board 702 opposite side, through the arc spacing groove that is provided with bar fixing base 701 and its top and sets up, can effectively play the winding displacement effect, avoids the mutual interference between the circuit.
Wherein; the two ends of the strip-shaped line pressing plate 702 are respectively provided with a fastening bolt 703, the lower ends of the fastening bolts 703 penetrate through the strip-shaped line pressing plate 702 to be in threaded connection with the strip-shaped fixed seat 701, the strip-shaped line pressing plate 702 is driven to move downwards by rotating the fastening bolts 703, and the electric wire connected with the overcurrent protector main body 2 can be effectively pressed, so that the falling of the connector lug caused by the pulling action of external force is avoided.
Wherein; the spout 101 has been seted up to shield shell 1 near opening one end inner wall, shield shell 1 is provided with slidable dodge gate 3 through spout 101, bar notch 301 has been seted up to dodge gate 3 lower extreme, locating hole 302 has all been seted up at dodge gate 3 upper end surface both ends, shield shell 1 upper wall front end is provided with the locating pin 102 that mutually supports with locating hole 302, through opening dodge gate 3, the overcurrent protector main part 2 of installation or maintenance of being convenient for, when dodge gate 3 is closed, can play certain dustproof effect.
Wherein; the compressing assembly 5 further comprises two limiting columns 502, a connecting rod 503 and a reset spring 504, the two limiting columns 502 are respectively arranged at two ends of the upper end surface of the pressing plate 501, the upper ends of the limiting columns 502 penetrate through the through holes and are fixedly connected with the connecting rod 503, the reset spring 504 is arranged inside the protecting shell 1 and between the pressing plate 501 and the upper wall of the protecting shell 1, when the overcurrent protector main body 2 is installed, the connecting rod 503 is pulled upwards, the pressing plate 501 is driven to move upwards synchronously through the limiting columns 502, the reset spring 504 is in a compressed state at the moment, the lower end of the overcurrent protector main body 2 is clamped into the limiting frame 6, the connecting rod 503 is loosened, the reset spring 504 releases energy, and the pressing plate 501 is driven to move downwards to compress the overcurrent protector main body 2, so that the stability of the overcurrent protector is guaranteed, and the compressing assembly is simple and convenient to operate, and time and labor are saved.
Wherein; the fan 4 is arranged on the side wall of one side, deviating from the opening, of the protective housing 1, the side plates are fixedly arranged at the lower ends of the two sides of the protective housing 1, the mounting holes are formed in the side plates, heat generated by the operation of the overcurrent protector main body 2 can be timely transferred to the radiating fins 601, the fan 4 is used for effectively accelerating the air circulation inside the protective housing 1, and the heat on the radiating fins 601 can be effectively taken away in the air flowing process inside the protective housing 1, so that the radiating effect is ensured.
When the overcurrent protector is installed on the working principle, the connecting rod 503 is pulled upwards, the pressing plate 501 is driven to move upwards synchronously through the limiting column 502, the reset spring 504 is in a compressed state at the moment, the lower end of the overcurrent protector 2 is clamped into the limiting frame 6, the connecting rod 503 is loosened, the reset spring 504 releases energy, the pressing plate 501 is driven to move downwards to press the overcurrent protector 2, the stability of the overcurrent protector is guaranteed, and the operation is simple and convenient, and time and labor are saved.
Further, through the arc spacing groove that is provided with bar fixing base 701 and its top and offer, can effectively play the winding displacement effect, avoid the mutual interference between the circuit, drive bar line ball board 702 through rotating fastening bolt 703 and move down, can effectively compress tightly the electric wire of connecting overcurrent protector main part 2, avoid under the external force pulling the effect, the connector lug department that leads to drops, the heat that overcurrent protector main part 2 work produced can in time transmit to radiator fin 601, work through fan 4, the inside circulation of air of protecting crust 1 is effectively accelerated, the inside air flow in-process of protecting crust 1 can effectively take away the heat on the radiator fin 601, guarantee the radiating effect.
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 (7)
1. A current overload protection device comprising:
The protective shell (1), the front of the protective shell (1) is provided with an opening;
The overcurrent protector comprises an overcurrent protector body (2), wherein the overcurrent protector body (2) is arranged inside a protective shell (1);
the protection device is characterized in that a limiting frame (6) is arranged at the lower end of the inner part of the protection shell (1), radiating fins (601) are arranged between the bottom surface of the inner part of the protection shell (1) and the limiting frame (6), the lower end of the overcurrent protector main body (2) is clamped into the limiting frame (6), a through hole is formed in the upper wall of the protection shell (1), and a compression assembly (5) is arranged on the upper wall of the protection shell (1) through the through hole;
The compression assembly (5) comprises a compression plate (501), and the compression plate (501) is arranged on the upper end surface of the overcurrent protector body (2).
2. The current overload protection device according to claim 1, wherein a wire fixing assembly (7) is arranged at the front end of the bottom plate of the limiting frame (6), the wire fixing assembly (7) comprises a bar-shaped fixing seat (701), a bar-shaped wire pressing plate (702) and a fastening bolt (703), the lower end of the bar-shaped fixing seat (701) is fixedly connected with the bottom plate of the limiting frame (6), the bar-shaped wire pressing plate (702) is arranged above the bar-shaped fixing seat (701), and corresponding arc-shaped limiting grooves are formed in one side, opposite to the bar-shaped fixing seat (701), of the bar-shaped wire pressing plate (702).
3. The current overload protection device according to claim 2, wherein fastening bolts (703) are arranged at two ends of the strip-shaped wire pressing plate (702), and the lower ends of the fastening bolts (703) penetrate through the strip-shaped wire pressing plate (702) to be in threaded connection with the strip-shaped fixing seat (701).
4. The current overload protection device according to claim 1, wherein the inner wall of the protecting shell (1) close to one end of the opening is provided with a sliding groove (101), the protecting shell (1) is provided with a sliding movable door (3) through the sliding groove (101), and the lower end of the movable door (3) is provided with a strip-shaped notch (301).
5. The current overload protection device according to claim 4, wherein positioning holes (302) are formed in two ends of the upper end surface of the movable door (3), and positioning pins (102) matched with the positioning holes (302) are arranged at the front end of the upper wall of the protective shell (1).
6. The current overload protection device according to claim 1, wherein the pressing assembly (5) further comprises two limiting posts (502), a connecting rod (503) and a return spring (504), the two limiting posts (502) are respectively arranged at two ends of the upper end surface of the pressing plate (501), the upper ends of the limiting posts (502) penetrate through the through holes and are fixedly connected with the connecting rod (503), and the return spring (504) is arranged inside the protecting shell (1) and is located between the pressing plate (501) and the upper wall of the protecting shell (1).
7. The current overload protection device according to claim 1, wherein a fan (4) is arranged on the side wall of one side, away from the opening, of the protective shell (1), side plates are fixedly arranged at the lower ends of two sides of the protective shell (1), and mounting holes are formed in the side plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323118156.3U CN221596216U (en) | 2023-11-20 | 2023-11-20 | Current overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323118156.3U CN221596216U (en) | 2023-11-20 | 2023-11-20 | Current overload protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221596216U true CN221596216U (en) | 2024-08-23 |
Family
ID=92411116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323118156.3U Active CN221596216U (en) | 2023-11-20 | 2023-11-20 | Current overload protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221596216U (en) |
-
2023
- 2023-11-20 CN CN202323118156.3U patent/CN221596216U/en active Active
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