Arc-shaped fuse cutter

Abstract

The utility model provides an arc-shaped fuse cutter. The arc-shaped fuse cutter comprises a roller body and a plurality of cutting edges, the roller body is provided with a plurality of rolling tracks corresponding to wires. The shape of the cutting edge projected to the rolling track is arc, the cutting edge is arranged on the rolling track, and the two ends of the cutting edge extend to the edge of the rolling track. The cutting edge is arranged on the roller body and is in an arc shape, specifically, the shape of the projection of the cutting edge to a rolling track is in an arc shape, so that when the arc-shaped fuse cutter is used for cutting a wire, the edge of a notch cut by the cutting edge is in an arc shape, and the arc-shaped notch edge can effectively disperse stress, avoid stress concentration and reduce the phenomenon of fuse breakage; the fracture risk is reduced, and the use safety of the wire is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fuse processing cutter technical field especially, it relates to an arc fuse cutter. BACKGROUND

[0002] At present, with the development of new energy industry, in the energy storage facility construction, new energy transportation equipment obtains more extensive user basis. New energy brings good use experience to the user, but the use safety of the battery cell is still the focus of the user. The main structure of the energy storage device includes a battery assembly and an integrated busbar, the integrated busbar is an integrated arrangement structure for internal power collection, signal collection and battery management of the energy storage device, and is one of important structures for power storage and use of the energy storage device. The safety of the integrated busbar affects the overall safety of the energy storage device, and the safety is not only the design requirement of the manufacturer, but also the core of the user. Most manufacturers try to avoid external circuit short circuit, leakage and other circuit faults when designing the integrated busbar.

[0003] Among them, overload and short circuit are serious circuit faults, which can easily cause internal battery rapid heating, and even cause spontaneous combustion. Therefore, the integrated busbar can use a fuse to avoid battery rapid heating caused by circuit overload and short circuit.

[0004] The local area of the flat wire is cut and processed, and the section is a fuse section, which is used as a fuse, but in the actual use process, there is a problem that the fuse is broken due to stress concentration. INVENTION CONTENTS

[0005] In order to solve the technical problem that the fuse is broken due to stress concentration in the prior art, one of the purposes of the utility model is to provide an arc fuse cutter.

[0006] One of the purposes of the utility model is realized by adopting the following technical scheme:

[0007] An arc fuse cutter, the arc fuse cutter comprises a roller body and a plurality of cutting edges;

[0008] The roller body has a plurality of rolling tracks corresponding to the wires;

[0009] The shape of the cutting edge projected to the rolling track is arc-shaped, the cutting edge is arranged on the rolling track, and the two ends of the cutting edge extend to the edges of the rolling track.

[0010] Optionally, the arc shape includes a full arc shape and a partial arc shape;

[0011] The full arc shape is an integral segment projected to the rolling track and is arc-shaped;

[0012] The partial arc is arc-shaped at both ends and is straight at the middle part.

[0013] Optionally, the arc-shaped fuse cutter comprises a plurality of blades, one end of the blade is a mounting end, the other end is the cutting edge, the mounting end is arranged in the roller body, and the cutting edge is exposed from the roller body.

[0014] Optionally, the arc-shaped fuse cutter further comprises a blade holder;

[0015] The outer circumferential surface of the roller body is provided with a mounting groove;

[0016] The blade holder is detachably arranged in the mounting groove, and the blade holder is provided with a plurality of blade grooves, and the blade grooves are distributed along the axis direction of the roller body;

[0017] The mounting end is detachably arranged in the blade groove of the blade holder, the cutting edge is exposed from the blade holder, and is used for cutting part of the area of the conductor when the roller body is rolled on the conductor.

[0018] Optionally, the mounting end is provided with a limiting hole;

[0019] The blade holder is provided with a pin hole, and the pin hole penetrates through the blade holder along the axis direction of the roller body;

[0020] The arc-shaped fuse cutter further comprises a pin shaft, the pin shaft is arranged in the pin hole, and the pin shaft penetrates through the limiting hole.

[0021] Optionally, the blade groove penetrates from the front surface of the blade holder to the back surface of the blade holder.

[0022] Optionally, the mounting end extends into the back surface of the blade holder.

[0023] Optionally, the blade holder has at most a plurality of groups of blades, each group of blades is distributed along the axis direction of the roller body, and the group of blades comprises two blades, and the two blades are symmetrically arranged on both sides of the rolling track.

[0024] Optionally, in the group of blades, the side surface of one blade close to the other blade is an inner side surface.

[0025] The cutting edge on the blade is located on the inner side surface.

[0026] Optionally, in the two blade grooves corresponding to the group of blades, the middle parts of the two blade grooves are communicated with each other.

[0027] Compared with the prior art, the utility model has the beneficial effects that:

[0028] The cutting blade is arranged on the roller body, and the shape of the cutting blade is arc-shaped. Specifically, the shape of the cutting blade projected onto the rolling track is arc-shaped. In this way, when the arc-shaped fuse cutter cuts the wire, the edge of the notch cut by the cutting blade is arc-shaped. In this way, the arc-shaped notch edge can effectively disperse stress, avoid stress concentration, reduce the phenomenon of fuse breakage, reduce the risk of breakage, and improve the safety of wire use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of the arc-shaped fuse cutter of the present utility model;

[0030] Figure 2 It is a schematic diagram of the projection of the cutting edge of the arc-shaped fuse cutter of the present invention onto the rolling trajectory;

[0031] Figure 3 This is another structural schematic diagram of the arc-shaped fuse cutter of the present utility model;

[0032] Figure 4 for Figure 3 Exploded diagram of a medium arc fuse cutter;

[0033] Figure 5 This is a schematic structural diagram of the arc-shaped cutting edge in the arc-shaped fuse cutter of the present invention;

[0034] Figure 6 This is a schematic structural diagram of another arc-shaped cutting edge in the arc-shaped fuse cutter of the present invention;

[0035] Figure 7 This is a structural diagram of the blade holder in the arc-shaped fuse cutter of the present utility model;

[0036] Figure 8 for Figure 7 A magnified schematic diagram of the local area A;

[0037] Figure 9 for Figure 7 An enlarged schematic diagram of another embodiment of the local area A.

[0038] Description of the accompanying drawings:

[0039] 1. Drum body; 11. Mounting slot;

[0040] 2. Tool holder; 21. Tool groove; 22. Pin hole; 23. Thin-wall structure;

[0041] 3. Blade; 31. Cutting edge; 32. Mounting end; 33. Limiting hole;

[0042] 4. Pin shaft. DETAILED DESCRIPTION

[0043] The following is a combination of the appended examples of the present applicationFigure 1 To the attached Figure 9 For the technical solutions in the embodiments of the present application, it is obvious that the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, motion condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0045] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art, and when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0046] As Figure 1 , Figure 2 , Figure 5 and Figure 6 indicate, the utility model provides a kind of arc fuse cutter, arc fuse cutter includes cylinder body 1 and several cutting edges 31.Cylinder body 1 has several rolling tracks corresponding to wire, of course, rolling track can be line actually described on cylinder body 1, it can also be the virtual area set to express the position of cutting edge 31.Cutting edge 31 is projected to rolling track in arc shape, cutting edge 31 is set on rolling track, and both ends of cutting edge 31 extend to the edge of rolling track.In the utility model, cutting edge 31 is set on cylinder body 1, and the shape of cutting edge 31 is arc, specifically, the shape of cutting edge 31 projected to rolling track is arc, so that, when cutting wire, the notch edge cut by cutting edge 31 of arc fuse cutter is arc, so that, the notch edge of arc shape can effectively disperse stress, avoid stress concentration, reduce fuse fracture phenomenon, reduce fracture risk, and improve the use safety of wire.

[0047] Specifically, arc includes full arc type and partial arc shape.Full arc type is the whole segment projected to rolling track in arc shape, as shown in Figure 2 , Figure 6 , wherein the arc shape includes but is not limited to crescent shape, half-moon shape and the like.Figure 2 、 Figure 5 As shown in FIG. 1, the partial arc shape includes three sections, i.e., two ends and a middle part, wherein the two ends are arc-shaped and the middle part is straight.

[0048] For the full arc shape, a circular arc is preferred, i.e., the cutting edge 31 is in a circular arc shape, and specifically, the shape of the cutting edge 31 projected to the rolling track is a circular arc.

[0049] In addition, for the cutting edge 31, which is the part of the blade 3 exposed to the roller body 1, specifically, the arc-shaped fuse cutter includes a plurality of blades 3, one end of the blade 3 is the mounting end 32, and the other end is the cutting edge 31, the mounting end 32 is arranged in the roller body 1, and the cutting edge 31 is exposed to the roller body 1.

[0050] Further, as shown in FIG. 1, the arc-shaped fuse cutter further includes a tool holder 2. The outer circumferential surface of the roller body 1 is provided with a mounting groove 11. The tool holder 2 is detachably arranged in the mounting groove 11, and the tool holder 2 is provided with a plurality of tool grooves 21 distributed along the axis direction of the roller body 1. Figure 3 、 Figure 4 The mounting end 32 is detachably arranged in the tool groove 21 of the tool holder 2, and the cutting edge 31 is exposed to the tool holder 2 for cutting part of the area of the conductor when the roller body 1 rolls the conductor.

[0051] The tool holder 2 is provided with a plurality of tool grooves 21 for mounting the blades 3, and the tool holder 2 is the mounting carrier of the blades 3. Through the detachable connection of the tool holder 2, the blades 3 can be integrally detached from the roller body 1, and the tool holder 2 with the appropriate blades 3 is fixed in the mounting groove 11 to realize the quick replacement of the blades 3, so that the parameter performance of the blades 3 in the arc-shaped fuse cutter meets the cutting requirements, avoids the overall replacement of the arc-shaped fuse cutter, and reduces the cost of tool replacement.

[0052] In addition, in addition to the overall replacement of the tool holder 2 and the blades 3, the blades 3 on the tool holder 2 can also be replaced after the tool holder 2 is removed, and then the tool holder 2 and the replaced blades 3 are assembled into the mounting groove 11 to realize the tool replacement of the arc-shaped fuse cutter, and the cost of tool replacement is lower.

[0053] In addition, in addition to the overall replacement of the tool holder 2 and the blades 3, the blades 3 on the tool holder 2 can also be replaced after the tool holder 2 is removed, and then the tool holder 2 and the replaced blades 3 are assembled into the mounting groove 11 to realize the tool replacement of the arc-shaped fuse cutter, and the cost of tool replacement is lower.

[0054] For the detachable arrangement of the tool holder 2 in the mounting groove 11, specifically, the tool holder 2 can be fixed in the mounting groove 11 by locking screws. It can also be achieved by a clamping structure, such as arranging a wave bead screw on the inner wall of the mounting groove 11 and arranging a limiting hole 33 on the corresponding side wall of the tool holder 2, so as to realize the detachable connection of the tool holder 2.

[0055] The detachable connection is between the blade 3 and the blade seat 2. On the one hand, the blade 3 is partially embedded in the blade groove 21 in a plug-in nesting manner. In addition, the blade 3 can be provided with a spring structure on the part extending into the blade groove 21, so that the blade 3 and the blade groove 21 are detachably connected.

[0056] In some detachable connection modes of the blade 3, as shown in Figure 4 、 Figure 5 The mounting end 32 is provided with a limiting hole 33. The blade seat 2 is provided with a pin hole 22 penetrating through the blade seat 2 along the axis direction of the roller body 1. The arc-shaped fuse cutter further comprises a pin shaft 4 penetrating through the pin hole 22 and the limiting hole 33.

[0057] The main structure of the arc-shaped fuse cutter is a roller or a structure similar to a roller. When the arc-shaped fuse cutter is working, it is in a rotating state. Therefore, the blade 3 is in a centrifugal state and has a tendency or possibility to move in a centrifugal manner. When the blade 3 is not firmly fixed, it is easy to be thrown away. Therefore, in the embodiment, the limiting hole 33 is arranged on the mounting end 32 of the blade 3, the pin hole 22 is arranged on the blade seat 2, and the blade seat 2 and the corresponding plurality of blades 3 are connected together through the pin shaft 4, so as to limit the position of the blade 3 and avoid the blade 3 from being separated from the blade seat 2.

[0058] Further, the blade groove 21 penetrates from the front surface of the blade seat 2 to the back surface of the blade seat 2. When the blade 3 is disassembled, after the pin shaft 4 is pulled out, the blade 3 can be directly pushed out from the back surface of the blade seat 2 and slid out of the blade groove 21, for example, by means of a flat tool continuously inserted into the blade groove 21, so that the blade 3 is completely slid out of the blade groove 21, improving the convenience of disassembling the blade 3. In addition, the blade 3 is avoided from being clamped from the front surface of the blade 3 in a clamping manner, avoiding damage to the blade 3 during disassembly.

[0059] In some further embodiments of the blade 3, the mounting end 32 extends to the back surface of the blade seat 2. After the limiting hole 33 is arranged on the mounting end 32, the depth of the blade 3 extending into the blade groove 21 needs to be positioned. The limiting hole 33 is located in the blade groove 21, which is not conducive to directly observing and controlling the position of the limiting hole 33. Therefore, in the embodiment, the back surface of the blade seat 2 is used as the termination surface of the blade 3 extending in. When the blade 3 is assembled, the blade seat 2 is placed on a plane or a straight rod, and then the blade 3 is assembled into the blade groove 21. Therefore, the plane or the straight rod can be used as a positioning or limiting structure of the blade 3, which can uniformly determine the position of each blade 3, that is, uniformly position the limiting hole 33, and align the limiting hole 33 with the pin hole 22. In the embodiment, the blade 3 has a more convenient assembly mode.

[0060] For the blade 3 on the blade seat 2, the blade seat 2 has at most a group of blade groups, each group of blade groups is distributed along the axis direction of the roller body 1, and the blade group comprises two blades 3 which are symmetrically arranged on both sides of the rolling track.

[0061] In the tool group, the side of one blade 3 close to another blade 3 is an inner side. The cutting edge 31 on the blade 3 is located on the inner side.

[0062] In addition, as shown in Figs. Figure 7 , Figure 8 and Figure 9 , the gap between the two tool grooves 21 corresponding to the tool group is small, and the thin wall structure 23 between the two tool grooves 21 is easy to bend and deform, affecting the installation of the subsequent blade 3. In the embodiment, as shown in the figure, the middle part of the two tool grooves 21 corresponding to the tool group is communicated with each other, which can also be said that the thin wall structure 23 is partially or completely removed. The complete removal or partial removal of the thin wall structure 23 makes the middle part of the two tool grooves 21 communicated with each other, avoids or reduces the deformation of the internal thin wall structure 23, reduces the disassembly and assembly difficulty of the blade 3, and improves the disassembly and assembly efficiency of the blade 3.

[0063] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and substitutions made by those skilled in the art on the basis of the present application shall fall within the scope of protection of the present application.

Claims

1. An arc-shaped fuse cutter, characterized in that: The arc-shaped fuse cutter comprises a roller body and a plurality of cutting blades; The roller body is provided with a plurality of rolling tracks corresponding to the conductive wires; The shape of the cutting edge projected onto the rolling track is an arc. The cutting edge is arranged on the rolling track, and both ends of the cutting edge extend to the edge of the rolling track.

2. The arc-shaped fuse cutter according to claim 1, characterized in that: The arc shape includes a full arc shape and a partial arc shape; The full arc shape is an arc shape when projected onto the rolling track; The local arc has arcs at both ends and a straight line in the middle.

3. The arc-shaped fuse cutter according to claim 1, characterized in that: The arc-shaped fuse cutter includes a plurality of blades, one end of the blade is a mounting end, and the other end is the cutting edge. The mounting end is arranged in the roller body, and the cutting edge is exposed from the roller body.

4. The arc-shaped fuse cutter according to claim 3, characterized in that: The arc-shaped fuse cutter also includes a cutter holder; The outer circumferential surface of the drum body is provided with a mounting groove; The knife seat is detachably mounted on the mounting groove, and a plurality of knife grooves are provided on the knife seat, and the knife grooves are distributed along the axis direction of the drum body; The mounting end is detachably arranged in the knife groove of the knife seat, and the cutting edge is exposed from the knife seat and is used to cut off a part of the wire when the roller body rolls the wire.

5. The arc-shaped fuse cutter according to claim 4, characterized in that: The mounting end is provided with a limiting hole; The knife seat is provided with a pin hole, and the pin hole passes through the knife seat along the axis direction of the drum body; The arc-shaped fuse cutter further includes a pin shaft, which is inserted into the pin hole and passes through the limiting hole.

6. The arc-shaped fuse cutter according to claim 5, characterized in that: The knife groove passes through from the front side of the knife seat to the back side of the knife seat.

7. The arc-shaped fuse cutter according to claim 6, characterized in that: The mounting end extends into the back side of the knife seat.

8. The arc-shaped fuse cutter according to claim 7, wherein: The knife seat is provided with at most multiple knife groups, each knife group is distributed along the axis direction of the roller body, and the knife group includes two blades, which are symmetrically arranged on both sides of the rolling track.

9. The arc-shaped fuse cutter according to claim 8, characterized in that: In the knife set, the side surface of one of the blades close to the other blade is the inner side surface; The cutting edge on the blade is located on the inner side.

10. The arc-shaped fuse cutter according to claim 8, wherein: In the two knife grooves corresponding to the knife assembly, middle parts of the two knife grooves are connected to each other.

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