Over-current device

Abstract

The utility model relates to the technical field of current devices, and discloses an overcurrent device which comprises a shell, the outer wall of the shell is provided with a side wall, the outer wall of the side wall is provided with a middle groove, the outer wall of the side wall is provided with a side edge groove, the outer wall of the shell is provided with an outer porcelain bushing, the outer wall of the outer porcelain bushing is sleeved with an inner porcelain bushing, and the inner porcelain bushing is provided with an inner groove. The inner wall of the outer porcelain bushing is sleeved with a conductive copper column, the outer wall of the conductive copper column is sleeved with a fastening ring, the outer wall of the conductive copper column is sleeved with a fastening nut, the outer wall of the conductive copper column is sleeved with a reinforcing ring, and the outer wall of the conductive copper column is connected with a connecting copper sheet. Through mutual cooperative use of the current coils, the electromagnetic partition plate and the outer sleeve plate on the device, mutual influence between the two current coils in the device is isolated when electric energy flows, then the outer sleeve plate covers the top of the electromagnetic partition plate and wraps the two current coils, and electromagnetic influence of the inside and the outside is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to current device technical field, concretely is a kind of overcurrent device. BACKGROUND

[0002] Overcurrent is the current that exceeds rated current;The loop current that is greater than the rated load current of loop conductor is overcurrent;It includes overload current and short-circuit current;Its distinction is that the overcurrent before loop insulation damage is called overload current;The overcurrent after insulation damage is called short-circuit current.

[0003] The existing overcurrent device is used, and the current of the current coil in the usual overcurrent device is output, the current flows along the fixed direction of the current coil, which lacks the practicability in the market, when the device needs unidirectional current to be set to bidirectional current, and the overcurrent device is set to bidirectional current, electromagnetic interference between opposite currents needs to be avoided, effective measures are needed to avoid this situation, and in the process of using the overcurrent device, the influence of the device inside and outside also needs to be avoided, therefore a kind of overcurrent device solving the above problems is needed. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides an overcurrent device, with the advantages of isolating electromagnetism, eliminating electromagnetism and insulation protection, and solves the problems raised in the above background art.

[0005] The utility model provides following technical scheme: an overcurrent device, including the casing, the outer wall of casing is equipped with side wall, the outer wall of side wall is equipped with middle slot, the outer wall of side wall is equipped with side slot, the outer wall of casing is equipped with outer porcelain sleeve, the outer wall of outer porcelain sleeve is sleeved with inner porcelain sleeve, the inner wall of outer porcelain sleeve is sleeved with conductive copper column, the outer wall of conductive copper column is sleeved with fastening ring, the outer wall of conductive copper column is sleeved with fastening nut, the outer wall of conductive copper column is sleeved with reinforcing ring, the outer wall of conductive copper column is connected with connecting copper sheet, the outer wall of connecting copper sheet is connected with current coil, the outer wall of current coil is equipped with fixing piece, the bottom of fixing piece is connected with reinforcing nail, the inner wall of electromagnetic baffle is screwed with connecting nail, the top of electromagnetic baffle is placed with outer sleeve plate, the inner wall of outer sleeve plate is connected with screw.

[0006] As a preferred technical scheme of the utility model, the inner wall diameter of the middle slot is adapted to the outer wall diameter of the electromagnetic baffle, and the electromagnetic baffle is supported in the inner cavity center of the outer sleeve plate.

[0007] As a preferred technical scheme of the utility model, the number of current coils is two, and the two current coils are symmetrically arranged in the inner cavity of the casing.

[0008] As a preferred embodiment of this utility model, the outer ceramic sleeve and the inner ceramic sleeve are made of alumina ceramic material, and the outer ceramic sleeve and the inner ceramic sleeve are disposed on both sides of the shell.

[0009] As a preferred embodiment of this utility model, the current coil is installed using a 45° inclined structure, and multiple fasteners are also installed using a 45° inclined structure.

[0010] As a preferred embodiment of this utility model, the two sides of the outer jacket plate are inserted into the inner cavity of the side groove, and screws are threaded to the bottom of the two sides of the outer jacket plate.

[0011] As a preferred embodiment of this utility model, the electromagnetic separator and the outer jacket are made of aluminum, and the electromagnetic separator is disposed between the two current coils.

[0012] As a preferred embodiment of this utility model, the conductive copper pillar, the connecting copper sheet, and the current coil are made of metallic copper, and one end of the conductive copper pillar is located on the outside of the device.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This overcurrent device, through the coordinated use of the current coils, electromagnetic partition, and outer jacket, allows the current coils to be symmetrically arranged in the inner cavity of the housing, with the two current coils facing each other. During this process, the electromagnetic partition isolates them, thus isolating the two current coils from each other when they flow electrical energy. Furthermore, the outer jacket covers the top of the electromagnetic partition and wraps around the two current coils, preventing electromagnetic interference from the inside and outside.

[0015] 2. This overcurrent device, through the cooperation of the outer porcelain sleeve, inner porcelain sleeve, shell, and conductive copper column, allows the outer and inner porcelain sleeves to fit onto the outer wall of the conductive copper column. Under the clamping of the outer and inner porcelain sleeves, the shell is positioned in the middle. When the outer end of the conductive copper column is connected to external power equipment and the inner end is connected to a current coil, the outer and inner porcelain sleeves isolate the current in the inner cavity of the conductive copper column from the shell, thereby ensuring that the outer surface of the device is in a safe state and can be freely removed. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the shell structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the shell of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the electromagnetic separator structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the screw structure of this utility model.

[0022] In the diagram: 1. Shell; 2. Side wall; 3. Intermediate groove; 4. Side groove; 5. Outer porcelain sleeve; 6. Inner porcelain sleeve; 7. Conductive copper pillar; 8. Fastening ring; 9. Fastening nut; 10. Fastening ring; 11. Connecting copper sheet; 12. Current coil; 13. Fixing component; 14. Reinforcing nail; 15. Electromagnetic partition; 16. Connecting nail; 17. Outer plate; 18. Screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 An overcurrent device includes a housing 1, with a side wall 2 on the outer wall of the housing 1. A central groove 3 and a side groove 4 are formed on the outer wall of the side wall 2. An outer ceramic sleeve 5 is provided on the outer wall of the housing 1. An inner ceramic sleeve 6 is fitted onto the outer wall of the outer ceramic sleeve 5. A conductive copper post 7 is fitted onto the inner wall of the outer ceramic sleeve 5. A fastening ring 8 and a fastening nut 9 are fitted onto the outer wall of the conductive copper post 7. A reinforcing ring 10 is fitted onto the outer wall of the conductive copper post 7. A connecting copper sheet 11 is connected to the outer wall of the conductive copper post 7. A current coil 12 is connected to the outer wall of the connecting copper sheet 11. The outer wall of the current coil 12 is provided with… There is a fixing member 13, and a reinforcing nail 14 is connected to the bottom of the fixing member 13. An electromagnetic partition 15 is placed in the inner cavity of the housing 1. A connecting nail 16 is threaded to the inner wall of the electromagnetic partition 15. An outer sleeve 17 is placed on the top of the electromagnetic partition 15. A screw 18 is connected to the inner wall of the outer sleeve 17. Through the mutual cooperation of the electromagnetic partition 15 and the connecting nail 16, when the electromagnetic partition 15 is placed in the inner cavity of the housing 1, the connecting nail 16 passes through the inner wall of the housing 1 from the bottom of the housing 1 and enters the inner wall of the electromagnetic partition 15, thereby fixing the electromagnetic partition 15 in the inner cavity of the housing 1.

[0025] In a preferred embodiment, the inner diameter of the intermediate groove 3 is adapted to the outer diameter of the electromagnetic partition 15, and the electromagnetic partition 15 is supported at the center of the inner cavity of the outer sleeve plate 17. By adapting the inner diameter of the intermediate groove 3 to the outer diameter of the electromagnetic partition 15, the electromagnetic partition 15 is placed in the inner cavity of the housing 1 before the outer sleeve plate 17. The height of the inner wall of the intermediate groove 3 fits the top outer wall of the electromagnetic partition 15, so that the electromagnetic partition 15 can be placed in the inner cavity of the housing 1. When the outer sleeve plate 17 is placed on top of the electromagnetic partition 15, the top of the electromagnetic partition 15 provides centerline support at the bottom of the outer sleeve plate 17.

[0026] In a preferred embodiment, there are two current coils 12, and the two current coils 12 are symmetrically arranged in the inner cavity of the housing 1. The two current coils 12 on the device are symmetrically arranged in the inner cavity of the housing 1 and are arranged facing each other, so that the two current coils 12 on the device can perform electrical energy overcurrent operation and return current operation respectively.

[0027] In a preferred embodiment, the outer ceramic sleeve 5 and the inner ceramic sleeve 6 are made of alumina ceramic material, and the outer ceramic sleeve 5 and the inner ceramic sleeve 6 are disposed on both sides of the housing 1. Due to the characteristic that the outer ceramic sleeve 5 and the inner ceramic sleeve 6 of the device are made of alumina ceramic material, the outer ceramic sleeve 5 and the inner ceramic sleeve 6 of the device have high insulation, high temperature resistance and good wear resistance. Thus, when the outer ceramic sleeve 5 and the inner ceramic sleeve 6 of the device are sleeved on the outer wall of the conductive copper column 7 and disposed on both sides of the housing 1, the outer ceramic sleeve 5 and the inner ceramic sleeve 6 of the device can fully exert their insulation function.

[0028] In a preferred embodiment, the current coil 12 is installed in a 45° inclined structure, and multiple fasteners 13 are also installed in a 45° inclined structure. By installing the current coil 12 in a 45° inclined structure, after the current coil 12 is installed, the fasteners 13 are also installed in an inclined manner, and the current coil 12 is fixed in the inner cavity of the housing 1. Thus, the fasteners 13 are fixed by the bottom reinforcing nails 14, thereby fixing the current coil 12 in the inner cavity of the housing 1.

[0029] In a preferred embodiment, the two sides of the outer sleeve plate 17 are engaged into the inner cavity of the side groove 4, and the bottom of the two sides of the outer sleeve plate 17 is threaded with screws 18. By engaging the two sides of the outer sleeve plate 17 into the inner cavity of the side groove 4, the side groove 4 on the device is positioned on both sides of the outer wall of the side wall 2. When the outer sleeve plate 17 is placed on the top of the housing 1, the two outer walls of the outer sleeve plate 17 are engaged into the inner groove of the side groove 4, and the bottom of the outer sleeve plate 17 is threaded with screws 18, so that the screws 18 on the device pass through the inner wall of the housing 1 and connect with the outer sleeve plate 17, thereby installing the outer sleeve plate 17 on the inner wall of the housing 1.

[0030] In a preferred embodiment, the electromagnetic separator 15 and the outer jacket 17 are made of aluminum. The electromagnetic separator 15 is disposed between the two current coils 12. By making the electromagnetic separator 15 and the outer jacket 17 of the device into aluminum, the electromagnetic separator 15 is disposed between the current coils 12. When the current coils 12 transmit current, the electromagnetic separator 15 provides electromagnetic shielding between the two current coils 12. The outer jacket 17 is wrapped around the outside of the current coils 12. The aluminum electromagnetic separator 15 and the outer jacket 17 have the ability to reflect and absorb electromagnetic radiation, thereby providing electromagnetic shielding between the current coils 12 and between the current coils 12 and the outside world through the electromagnetic separator 15 and the outer jacket 17.

[0031] In a preferred embodiment, the conductive copper pillar 7, the connecting copper sheet 11, and the current coil 12 are made of metallic copper. One end of the conductive copper pillar 7 is located on the outside of the device. Because the conductive copper pillar 7, the connecting copper sheet 11, and the current coil 12 are made of metallic copper, the end of the conductive copper pillar 7 located on the outside of the device is connected to the power equipment. When the power equipment outputs current, the conductive copper pillar 7 transmits the current to the connecting copper sheet 11, and the connecting copper sheet 11 transfers the current to the current coil 12. The conductive copper pillar 7, the connecting copper sheet 11, and the current coil 12 made of metallic copper have high conductivity, which allows the current to pass through efficiently, thereby avoiding and reducing energy loss.

[0032] The working principle involves the coordinated use of the current coils 12, electromagnetic partition 15, and outer jacket 17. The current coils 12 are symmetrically arranged within the inner cavity of the housing 1, facing each other. The electromagnetic partition 15 isolates them, preventing interference between the two current coils 12 during electrical energy flow. The outer jacket 17 covers the top of the electromagnetic partition 15 and encloses the two current coils 12, preventing electromagnetic interference from the outside world. Through the coordinated use of the outer porcelain sleeve 5, inner porcelain sleeve 6, housing 1, and conductive copper pillar 7 on the device, the outer porcelain sleeve 5 and inner porcelain sleeve 6 are fitted onto the outer wall of the conductive copper pillar 7. Under the clamping of the outer porcelain sleeve 5 and inner porcelain sleeve 6, the housing 1 is located in the middle. When the outer end of the conductive copper pillar 7 is connected to external power equipment and the inner end is connected to the current coil 12, the outer porcelain sleeve 5 and inner porcelain sleeve 6 isolate the current in the inner cavity of the conductive copper pillar 7 from the housing 1, thereby making the outer surface of the device safe and free to be removed.

[0033] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An overcurrent device, comprising a housing (1), characterized in that: The outer wall of the housing (1) is provided with a side wall (2), the outer wall of the side wall (2) is provided with a central groove (3), the outer wall of the side wall (2) is provided with a side groove (4), the outer wall of the housing (1) is provided with an outer ceramic sleeve (5), the outer wall of the outer ceramic sleeve (5) is fitted with an inner ceramic sleeve (6), the inner wall of the outer ceramic sleeve (5) is fitted with a conductive copper pillar (7), the outer wall of the conductive copper pillar (7) is fitted with a fastening ring (8), the outer wall of the conductive copper pillar (7) is fitted with a fastening nut (9), and the outer wall of the conductive copper pillar (7) is fitted with a reinforcing ring (10). The outer wall of the conductive copper column (7) is connected to a connecting copper sheet (11), the outer wall of the connecting copper sheet (11) is connected to a current coil (12), the outer wall of the current coil (12) is provided with a fixing member (13), the bottom of the fixing member (13) is connected to a reinforcing nail (14), the inner cavity of the housing (1) is provided with an electromagnetic partition (15), the inner wall of the electromagnetic partition (15) is threaded with a connecting nail (16), the top of the electromagnetic partition (15) is provided with an outer jacket (17), and the inner wall of the outer jacket (17) is connected with a screw (18).

2. The overcurrent device according to claim 1, characterized in that: The inner diameter of the intermediate groove (3) is adapted to the outer diameter of the electromagnetic separator (15), and the electromagnetic separator (15) is supported at the center of the inner cavity of the outer jacket plate (17).

3. The overcurrent device according to claim 1, characterized in that: The number of current coils (12) is two, and the two current coils (12) are symmetrically arranged in the inner cavity of the housing (1).

4. The overcurrent device according to claim 1, characterized in that: The outer ceramic sleeve (5) and the inner ceramic sleeve (6) are made of alumina ceramic material, and the outer ceramic sleeve (5) and the inner ceramic sleeve (6) are located on both sides of the shell (1).

5. An overcurrent device according to claim 1, characterized in that: The current coil (12) is installed in a 45° inclined structure, and multiple fasteners (13) are also installed in a 45° inclined structure.

6. The overcurrent device according to claim 1, characterized in that: The two sides of the outer sleeve plate (17) are inserted into the inner cavity of the side groove (4), and screws (18) are threaded to the bottom of the two sides of the outer sleeve plate (17).

7. An overcurrent device according to claim 1, characterized in that: The electromagnetic separator (15) and the outer jacket (17) are made of aluminum, and the electromagnetic separator (15) is located between the two current coils (12).

8. An overcurrent device according to claim 1, characterized in that: The conductive copper pillar (7), connecting copper sheet (11) and current coil (12) are made of metallic copper, and one end of the conductive copper pillar (7) is located on the outside of the device.

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