Anti-surge multilayer structure patch type fuse

Abstract

The utility model relates to the technical field of patch type fuses, and discloses an anti-surge multilayer structure patch type fuse, which comprises an insulating shell and two groups of metal end caps, the insulating shell is composed of an upper shell and a lower shell which are detachable, the opposite sides of the two groups of metal end caps are fixed with the two ends of the lower shell, and the two groups of metal end caps are fixed with the two ends of the lower shell. The upper shell is connected with the two sets of metal end caps in an inserted mode, a first ceramic sleeve is fixed to the top of the lower shell, a second ceramic sleeve is fixed to the bottom of the upper shell, a fuse wire is placed between the first ceramic sleeve and the second ceramic sleeve, an abutting piece is arranged at the bottom of the second ceramic sleeve, and conducting strips are arranged on the two sets of metal end caps. According to the anti-surge multilayer structure surface mount type fuse, through the arrangement of the contact piece, when the fuse wire needs to be dismounted and replaced, the fuse wire can be taken down only by screwing off the bolt and then splitting the upper shell and the lower shell, and the use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to patch fuse technical field, concretely is a kind of anti-surge multilayer structure patch fuse. BACKGROUND

[0002] Patch fuse is a new variety with relatively high technical content in small fuse industry.Patch fuse can be divided into patch current fuse and patch self-recovery fuse.Patch fuse is used in equipment, and vibration of patch fuse can be caused by collision of equipment, which can cause poor contact of fuse circuit in patch fuse after vibration, cannot play the role of protecting circuit, and is damaged by itself, which needs manual replacement, and it is not easy to disassemble the equipment, and it is more difficult to find the damaged patch fuse.

[0003] As disclosed in the patent number "CN220474561U", a patch fuse is directly connected with fuse through No.1 conductive block, wire and No.2 conductive block, when it is necessary to replace the fuse, due to the limitation of No.1 conductive block, wire and No.2 conductive block, the fuse needs to be replaced, and No.2 conductive block needs to be removed first, which has certain disadvantages, therefore, we propose a kind of anti-surge multilayer structure patch fuse. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of anti-surge multilayer structure patch fuse, can replace fuse conveniently, improve replacement speed.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A kind of anti-surge multilayer structure patch fuse, including insulating shell and metal end cap, the insulating shell is composed of detachable upper shell and lower shell, the metal end cap is provided with two groups, the side of two groups the metal end cap is fixed with the two ends of lower shell, the upper shell is inserted with two groups metal end cap, the top of lower shell is fixed with ceramic sleeve one, the bottom of upper shell is fixed with ceramic sleeve two, ceramic sleeve one and ceramic sleeve two are placed with fuse, the bottom of ceramic sleeve two is provided with abutment piece, two groups the metal end cap are all provided with conducting piece;

[0007] The abutment piece includes:

[0008] Abutment block, abutment block is used to abut conducting piece, so that conducting piece and fuse are firmly contacted;

[0009] Moving block, moving block is used to control the movement of abutment block by support rod.

[0010] The utility model also includes the following features:

[0011] The bottom of the ceramic sleeve two is provided with a moving groove, the inner side of the moving groove is fixedly provided with a fixed rod, the fixed rod penetrates through a moving block and is in sliding connection with the moving block, the top of the moving block is fixedly provided with a connecting spring, the end of the connecting spring away from the moving block is fixedly arranged on the inner side of the moving groove, the side surface of the moving block is hingedly provided with a supporting rod, the end of the supporting rod away from the moving block is hingedly connected with a resisting block, the resisting block is slidingly arranged in the moving groove, and the moving groove is in arc shape.

[0012] The top of the metal end cap is provided with a plug-in groove for plug-in of the upper shell.

[0013] The upper shell is fixed with the lower shell through bolts, and the upper shell and the lower shell can be separated by only screwing off the bolts when it is needed to remove.

[0014] The fuse is provided with five layers, and the fuse with the five-layer design can avoid local overheating and improve surge resistance.

[0015] The technical effects achieved by the utility model are as follows:

[0016] (1) The anti-surge multi-layer structure chip fuse is convenient to use, and only needs to screw off the bolts, then separates the upper shell and the lower shell, and then removes the fuse when it is needed to remove and replace the fuse.

[0017] (2) After the upper shell and the lower shell are assembled, the ceramic sleeve one and the ceramic sleeve two clamp the fuse, at this time, the moving block is in contact with the surface of the fuse and moves upward, the moving block pushes the resisting block to move away from the moving block through the supporting rod, and the resisting block is in contact with the conductive sheet, so that the conductive sheet is in firm contact with the contact point of the fuse, and the stability during use is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a sectional front view structural schematic diagram of the utility model;

[0020] Figure 3 It is a fuse structure schematic diagram of the utility model;

[0021] Figure 4The upper shell, the ceramic sleeve two and the abutting piece are connected, and the sectional structure schematic view is shown in the figure.

[0022] Figure 5 The utility model discloses Figure 4 The middle A amplification structure schematic view is shown in the figure.

[0023] In the figure: 1, upper shell;2, lower shell;3, abutting piece;31, abutting block;32, moving block;33, support rod;34, moving groove;35, fixed rod;36, connecting spring;5, metal end cap;6, ceramic sleeve one;7, ceramic sleeve two;8, fuse;9, conducting sheet;10, plug-in slot;11, bolt. DETAILED DESCRIPTION

[0024] In order to make the utility model's purpose and advantage more clearly clear, the following is with example to the utility model carries out specific explanation. It should be understood that the following text is only used to describe one or several specific implementation modes of the utility model, and does not strictly limit the protection scope of the utility model specifically requested. As used in this text, the terms "parallel" and "perpendicular" are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human error.

[0025] Combining Figures 1 to 5 The specific features of the anti-surge multilayer structure chip fuse are described in detail as follows:

[0026] An anti-surge multilayer structure chip fuse, comprising an insulating shell and a metal end cap 5, the insulating shell is composed of a detachable upper shell 1 and a lower shell 2, the metal end cap 5 is provided with two groups, the two groups of metal end caps 5 are fixed with the two ends of the lower shell 2 on the side facing each other, the upper shell 1 is plugged with the two groups of metal end caps 5, the top of the lower shell 2 is fixed with a ceramic sleeve one 6, the bottom of the upper shell 1 is fixed with a ceramic sleeve two 7, a fuse 8 is placed between the ceramic sleeve one 6 and the ceramic sleeve two 7, the bottom of the ceramic sleeve two 7 is provided with an abutting piece 3, the two groups of metal end caps 5 are each provided with a conducting sheet 9, the abutting piece 3 comprises: an abutting block 31, a moving block 32, a support rod 33, a moving groove 34, a fixed rod 35, and a connecting spring 36.

[0027] The bottom of the ceramic sleeve two 7 is provided with a moving groove 34, the inner side of the moving groove 34 is fixedly provided with a fixed rod 35, the fixed rod 35 penetrates through the moving block 32 and is in sliding connection with the moving block 32, the top of the moving block 32 is fixedly provided with a connecting spring 36, one end of the connecting spring 36 away from the moving block 32 is fixedly arranged at the inner side of the moving groove 34, the side surface of the moving block 32 is hingedly provided with a supporting rod 33, one end of the supporting rod 33 away from the moving block 32 is hingedly connected with the abutting block 31, the abutting block 31 is slidingly arranged in the moving groove 34, the moving groove 34 is arc-shaped, after the upper shell 1 and the lower shell 2 are assembled, the ceramic sleeve one 6 and the ceramic sleeve two 7 will clamp the fuse 8, at this time, the moving block 32 is abutted on the surface of the fuse 8 and is moved upward, the moving block 32 pushes the abutting block 31 to move away from the moving block 32 through the supporting rod 33, the abutting block 31 is abutted on the conductive sheet 9, so that the conductive sheet 9 is firmly abutted on the contact position of the fuse 8, and the stability during use is ensured, when it is needed to remove and replace the fuse 8, the upper shell 1 and the lower shell 2 can be disassembled, and the fuse 8 can be taken down, so that the use is convenient.

[0028] The top of the metal end cap 5 is provided with a plug-in groove 10, which can be plugged with the upper shell 1. The upper shell 1 is fixed with the lower shell 2 through the bolt 11, and is fastened through the bolt 11, when it is needed to remove, the bolt 11 can be unscrewed to complete the disassembly of the upper shell 1 and the lower shell 2. The fuse 8 is provided with five layers, through the five-layer designed fuse 8, local overheating is avoided, and the surge resistance is improved.

[0029] Based on the above embodiment, after the upper shell 1 and the lower shell 2 are assembled, the ceramic sleeve one 6 and the ceramic sleeve two 7 will clamp the fuse 8, at this time, the moving block 32 is abutted on the surface of the fuse 8 and is moved upward, the moving block 32 pushes the abutting block 31 to move away from the moving block 32 through the supporting rod 33, the abutting block 31 is abutted on the conductive sheet 9, so that the conductive sheet 9 is firmly abutted on the contact position of the fuse 8, and the stability during use is ensured, when it is needed to remove and replace the fuse 8, the upper shell 1 and the lower shell 2 can be disassembled by unscrewing the bolt 11, the fuse 8 can be taken down and replaced, and the use is convenient.

Claims

1. An anti-surge multilayer construction chip fuse comprising an insulating outer shell and a metal end cap (5), characterized in that: The insulating shell is composed of detachable upper shell (1) and lower shell (2), the metal end cap (5) is provided with two groups, two groups of the metal end cap (5) is fixed with the two ends of the lower shell (2) on the opposite side, the upper shell (1) is inserted with two groups of metal end cap (5), the top of the lower shell (2) is fixed with ceramic sleeve one (6), the bottom of the upper shell (1) is fixed with ceramic sleeve two (7), the ceramic sleeve one (6) and ceramic sleeve two (7) are placed with fuse (8), the bottom of the ceramic sleeve two (7) is provided with abutting piece (3), two groups of the metal end cap (5) are provided with conductive sheet (9) on the upper surface of the metal end cap (5); The abutting piece (3) comprises: Abutting block (31), abutting block (31) is used for abutting conductive sheet (9), so that the conductive sheet (9) is firmly contacted with the fuse (8); Moving block (32), moving block (32) is used for moving abutting block (31) through support rod (33).

2. The surge resistant multi-layer construction chip fuse of claim 1, wherein: The bottom of the ceramic sleeve two (7) is provided with moving groove (34), the inner side of the moving groove (34) is fixed with fixed rod (35), the fixed rod (35) penetrates through the moving block (32) and is slidably connected with the moving block (32), the top of the moving block (32) is fixed with connecting spring (36).

3. The surge resistant multi-layer construction chip fuse of claim 2, wherein: The end of the connecting spring (36) away from the moving block (32) is fixed on the inner side of the moving groove (34), the side surface of the moving block (32) is hinged with support rod (33).

4. The surge resistant multi-layer construction chip fuse of claim 3, wherein: The end of the support rod (33) away from the moving block (32) is hinged with abutting block (31), the abutting block (31) is slidably installed in the moving groove (34).

5. The surge resistant multi-layer construction chip fuse of claim 2, wherein: The moving groove (34) is arc-shaped.

6. The surge resistant multi-layer construction chip fuse of claim 1, wherein: The top of the metal end cap (5) is provided with insertion slot (10).

7. The surge resistant multi-layer construction chip fuse of claim 1, wherein: The upper shell (1) is fixed with the lower shell (2) through bolt (11).

8. The surge resistant multi-layer construction chip fuse of claim 1, wherein: The fuse (8) is provided with five layers.

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