CN218769380U - Fuse protector - Google Patents

Abstract

The application belongs to the technical field of electrical components, and particularly relates to a fuse. This application aims at solving among the prior art fuse and passes through the bolt fastening, leads to the problem that the dismouting is complicated, inefficiency. The fuse comprises a fusing main body, a connecting body, a buckle and a base; the first side of the connecting body is fixedly connected with the fusing main body to form a whole, and the connecting body is in conductive connection with the fusing main body; the buckle is rotatably arranged on the base and rotates towards the connecting body, so that the buckle is clamped with the second side of the connecting body, the fusing main body and the connecting body are fixed on the base, the connecting body is ensured to be in conductive connection with the connecting terminal, and the electrical safety of the fuse protector is improved; the buckle deviates from the connector and rotates to make the buckle break away from the second side of connector, thereby dismantle fusing main part and connector from the base, easy operation is convenient, need not with the help of the instrument, labour saving and time saving, it is efficient.

Description

Fuse protector

Technical Field

The application relates to the technical field of electrical elements, in particular to a fuse.

Background

The fuse is an electric element which is installed in a circuit, melts a melt by heat generated by the fuse after a current exceeds a specified value for a period of time, and accordingly breaks the circuit to protect the safe operation of the circuit. The fuse is widely applied to high-low voltage distribution systems, transportation tools such as rail transit and electric equipment.

As a protector for short circuit and overcurrent, it is one of the most common protection devices used in fuses, and also belongs to a device which is easy to damage and needs to be replaced frequently. In the related art, the fuse is usually fixed by a plurality of bolts, and although stable and reliable, the fuse needs to be installed and disassembled by tools, which not only makes the disassembly complicated, but also wastes time and labor and is inefficient.

SUMMERY OF THE UTILITY MODEL

The application provides a fuse to solve prior art in the fuse pass through the bolt fastening, lead to the technical problem that the dismouting is complicated, inefficiency.

In order to solve the technical problem, the following technical scheme is adopted in the application:

the application provides a fuse, including: the fuse comprises a fusing main body, a connector, a buckle and a base; the connecting body is provided with a first side and a second side which are opposite, the first side of the connecting body is fixedly connected with the fusing main body, and the connecting body is in conductive connection with the fusing main body; the buckle is rotatably arranged on the base and rotates towards the connecting body, so that the buckle is clamped with the second side of the connecting body; the buckle rotates away from the connecting body so that the buckle is separated from the second side of the connecting body; be provided with connecting terminal on the base, connecting terminal with the connector electrically conducts and is connected, connecting terminal be used for with the fuse is installed in treating the protection circuit.

Compared with the prior art, the fuse that this application provided has following advantage:

the fuse provided by the application comprises a fusing main body, a connecting body, a buckle and a base; the connecting body is provided with a first side and a second side which are opposite, the first side of the connecting body is fixedly connected with the fusing main body, and the connecting body is in conductive connection with the fusing main body; the buckle is rotatably arranged on the base and rotates towards the connecting body, so that the buckle is clamped with the second side of the connecting body; the buckle rotates away from the connecting body so as to enable the buckle to be separated from the second side of the connecting body; the base is provided with a connecting terminal, the connecting terminal is in conductive connection with the connecting body, and the connecting terminal is used for installing the fuse in a circuit to be protected. Through the arrangement, the fusing main body and the connecting body form a whole, the buckle is rotatably arranged on the base to form a whole, and the buckle rotates towards the connecting body to be clamped with the connecting body, so that the fusing main body and the connecting body are fixed on the base, the connecting body is ensured to be in conductive connection with the connecting terminal, and the electrical safety of the fuse is improved; the buckle deviates from the connector and rotates and break away from the connector to dismantle fusing main part and connector from the base, easy operation is convenient, need not with the help of instrument, labour saving and time saving, and is efficient.

As an improvement of the above-mentioned fuse of this application, the buckle with be provided with the joint groove on one in the second side of connector, the buckle with it is protruding to have the joint on another in the second side of connector, the joint protruding with joint groove joint.

As an improvement of the fuse of the present application, a second side of the connecting body is provided with a clamping groove; the buckle includes the main part and the joint is protruding, the first end of main part rotationally install in on the base, the joint protruding set up in the main part orientation one side of connector.

As an improvement of the above fuse of the present application, the main body portion is inclined away from the connecting body such that the second end of the main body portion is spaced from the second side of the connecting body.

As an improvement of the fuse of the present application, the clamping groove includes a groove bottom wall, a top side wall and a bottom side wall, the groove bottom wall is opposite to the side surface of the second side of the connector, and the top side wall and the bottom side wall are oppositely disposed on the groove bottom wall; the top sidewall slopes away from the bottom sidewall; the protruding orientation of joint the tip of top lateral wall is provided with first transition circular arc.

As an improvement of the fuse of the present application, the latch further includes an abutting portion, the abutting portion is connected to the first end of the main body portion, and the abutting portion is located on a side of the main body portion facing the connecting body; the abutting part, the clamping protrusion and the part of the main body part between the clamping protrusion and the abutting part form a matching opening; the second side of the connector is also provided with a notch matched with the abutting part, and the notch and the clamping groove are provided with an interval; the part of the connector between the notch and the clamping groove is matched with the matching opening.

As an improvement of the fuse of the present application, a junction of the abutting portion and the main body portion is provided with a second transition arc.

As an improvement of the fuse of the present application, the buckle is provided with a first rotating hole, and the base is provided with a second rotating hole coaxial with the first rotating hole; the fuse also comprises a rotating shaft, and the rotating shaft is rotatably arranged in the first rotating hole and the second rotating hole.

As an improvement of the fuse of the present application, the base includes an insulating bottom plate and two mounting plates oppositely disposed on the insulating bottom plate, and an accommodating space is provided between the two mounting plates; the two mounting plates are provided with second rotating holes; the bottom end of the connecting body and the bottom end of the buckle are both positioned in the accommodating interval; the connecting terminal is positioned at the end part of the insulating bottom plate, and a gap is formed between the connecting terminal and the mounting plate; a metal connecting piece is embedded in the insulating bottom plate and is respectively in conductive connection with the connecting terminal and the connecting body; and the insulating bottom plate is also provided with a mounting hole.

As an improvement of the fuse of the present application, the connecting body is riveted or screwed to the fuse main body.

As an improvement of the fuse of the present application, the number of the connecting bodies and the number of the buckles are two, the two connecting bodies are respectively fixed on two sides of the fuse main body, and the two buckles respectively clamp the two connecting bodies on the base; the base is provided with two connecting terminals.

In addition to the technical problems addressed by the present application, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the fuse provided by the present application, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present application or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only a part of the embodiments of the present application, and the drawings and the description are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for a person skilled in the art by referring to a specific embodiment, and other drawings can be obtained from the drawings without inventive efforts for the person skilled in the art.

FIG. 1 is a schematic structural diagram of a fuse provided in an embodiment of the present application;

FIG. 2 is an exploded view of a fuse provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a fuse body of a fuse according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a connection body of a fuse provided in an embodiment of the present application;

FIG. 5 is a schematic view illustrating an assembly of a connecting body and a fuse body of a fuse according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a base of a fuse provided in an embodiment of the present application;

FIG. 7 is a top view of a base of a fuse provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a buckle of the fuse provided in the embodiment of the present application;

fig. 9 is an assembly diagram of a clip and a base of a fuse according to an embodiment of the present disclosure.

Description of reference numerals:

100: fusing the body; 110: a body portion; 120: a connecting portion; 121: a first connection hole;

200: a connector; 210: a main board body; 211: a clamping groove; 2111: a tank bottom wall; 2112: a top sidewall; 2113: a bottom sidewall; 212: a notch; 220: connecting the plate bodies; 221: a second connection hole; 222: a socket;

300: buckling; 310: clamping the protrusions; 311: a first transition arc; 320: a main body part; 321: a first rotary hole; 330: an abutting portion; 331: a second transition arc; 340: a mating opening;

400: a base; 410: a connection terminal; 420: an insulating base plate; 421: mounting holes; 430: mounting a plate; 431: a second rotary hole; 432: a receiving space;

510: a fastener; 520: a rotating shaft.

Detailed Description

The fuse is an electrical element which is arranged in a circuit, melts a melt by heat generated by the fuse after a period of time when current exceeds a specified value, and accordingly breaks the circuit to protect the safe operation of the circuit. The fuse is widely applied to high-low voltage distribution systems, transportation tools such as rail transit and electric equipment.

As a short circuit and overcurrent protector, it is one of the most common protective devices for fuses, and also belongs to a device which is easy to damage and needs to be replaced from time to time. In the related art, the fuse is usually fixed by a plurality of bolts, and although stable and reliable, needs to be mounted and dismounted by means of a tool. For example, in a lithium battery energy storage system, a fuse for protecting a battery short circuit in a battery cluster is mostly fixed on a cabinet bracket through a bolt, and when the fuse needs to be replaced, the fuse needs to be replaced by a special tool, which wastes time and labor and is low in efficiency. Therefore, a fuse with a quick connection is designed to solve the above problems.

In some schemes, increase plastic casing in the outside of fuse, plastic casing passes through the buckle fixed, though can dismantle fast, nevertheless need increase in the technology and install the technology in the shell with the fuse, structurally increases plastic casing, not only makes the structure complicated, with high costs, influences production efficiency moreover.

In view of this, an embodiment of the present application provides a fuse, which includes a fuse main body, a connector, a buckle, and a base, wherein the fuse main body is fixedly connected to the connector, the buckle is fixed to the base, and the buckle is connected to the connector in a snap-fit manner. The fusing main part is in conductive contact with the connecting body, the connecting body is in conductive connection with the connecting terminal arranged on the base, and the connecting terminal is further used for electrically connecting the fuse in a circuit, so that the fusing main part is electrically connected in the circuit to play a role in overcurrent protection. Because the connector passes through the buckle joint on the base, the dismouting is simple and convenient, and is efficient, need not with the help of the instrument, labour saving and time saving.

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

FIG. 1 is a schematic structural diagram of a fuse provided in an embodiment of the present application; fig. 2 is a schematic structural diagram of a buckle of a fuse according to an embodiment of the present application.

With reference to fig. 1 and 2, an embodiment of the present application provides a fuse, including: the fuse body 100, the connecting body 200, the clip 300 and the base 400.

The fuse body 100 is a component having a current protection function, and a melt is disposed therein, and when a current on the melt exceeds a predetermined value, the melt is melted by its own heat to be disconnected, thereby performing a current protection function.

The connecting body 200 is fixedly coupled to the fuse body 100 to form an integral body, and is mounted to the base 400 or detached from the base 400. The connecting body 200 has a first side and a second side opposite to each other, wherein the first side of the connecting body 200 is a side facing the fuse body 100, and the second side of the connecting body 200 is a side facing away from the fuse body 100. The first side of the connecting body 200 is fixedly connected to the fuse body 100, such that the connecting body 200 and the fuse body 100 form a single body.

There are various fixing connection methods for the connecting body 200 and the fuse body 100, for example, the connecting body 200 is riveted with the fuse body 100; for another example, the connecting body 200 is threadedly coupled to the fuse body 100. In this way, the reliability of the fixed connection between the connecting body 200 and the fuse body 100 can be ensured, thereby ensuring the reliability of the conductive connection between the connecting body 200 and the fuse body 100.

FIG. 3 is a schematic structural diagram of a fuse body of a fuse according to an embodiment of the present disclosure; fig. 4 is a schematic structural diagram of a connecting body of a fuse provided in an embodiment of the present application; fig. 5 is an assembly diagram of a connecting body and a fuse body of a fuse according to an embodiment of the present disclosure.

In some specific connection manners, referring to fig. 3, the fuse body 100 includes a body portion 110 and a connection portion 120, wherein the fuse body is disposed on the body portion 110, and the connection portion 120 is used for being fixedly connected with the connection body 200. The connection portion 120 is provided with a first connection hole 121. Referring to fig. 4, the connecting body 200 includes a main body 210 and two connecting body 220, the two connecting body 220 are respectively disposed on two surfaces of a first side of the main body 210, and thus, the two connecting body 220 and the main body 210 form a socket 222 opened toward the fuse body 100. The two connecting plate bodies 220 are respectively provided with a second connecting hole 221, and the two second connecting holes 221 are coaxial. Thus, referring to fig. 3 to 5, the connecting portion 120 of the fuse body 100 is inserted into the socket 222, the rivet 510 is inserted into the two second connecting holes 221 and the first connecting hole 121, and both ends of the rivet 510 are upset, so that the connecting plate body 220 and the connecting portion 120 are riveted together, so that the fuse body 100 and the connecting body 200 form a single body. When the fuse needs to be replaced, the fuse body 100 and the connecting body 200 are removed as a whole from the base 400 to be replaced.

It can be understood that, in order to improve the reliability and stability of the riveting between the connection plate body 220 and the connection portion 120, a plurality of second connection holes 221, for example, two, three, etc., may be provided on the connection plate body 220, and accordingly, the first connection holes 121 provided on the connection portion 120 and the second connection holes 221 provided on one connection plate body 220 are the same in number and corresponding in position. Of course, the number of the rivets 510 at this time is the same as the number of the first connection holes 121. As shown in fig. 4, two second connection holes 221 are formed in one connection plate 220 at intervals along the Z-axis direction, as shown in fig. 3, two first connection holes 121 are formed in the connection portion 120 at intervals along the Z-axis direction, and as shown in fig. 5, two rivets 510 are respectively riveted in the two first connection holes 121 and the corresponding second connection holes 221. Of course, this is not a limitation on the number and arrangement of the first connection holes 121.

Of course, the fixing method of the fuse body 100 and the connecting body 200 is not limited thereto. Alternatively, the fuse body 100 has two connecting portions 120 spaced apart from each other, and a socket is formed between the two connecting portions 120 and the body portion 110, and one connecting plate 220 is inserted into the socket, and then the connecting plate 220 and the connecting portion 120 are fixedly connected by rivets, screws or other fasteners. Alternatively, one connecting portion 120 and one connecting plate body 220 may be provided, respectively, and the fixed connection of the connecting portion 120 and the connecting plate body 220 may be achieved by bolts and nuts.

While the mechanical fixing connection between the connecting body 200 and the fuse body 100 is described above, in the embodiment of the present invention, the connecting body 200 and the fuse body 100 need to be electrically connected.

The connecting body 200 of the embodiment of the present application is a metal piece, for example, the connecting body 200 is a connecting copper bar. The connecting body 200 is electrically connected to the fuse body 100, and serves to electrically connect the fuse body 100 to a circuit to be protected. Alternatively, the connecting body 200 and the fuse body 100 are electrically connected by a fixed connection of a mechanical structure, and the connecting portion 120 is a metal member and is fixedly connected by a rivet of a metal structure, so that the connecting body 200 and the fuse body 100 are electrically connected. Alternatively, the connecting portion 120 is an insulating member, a metal connecting member is embedded in the connecting portion 120, and the connecting body 200 and the fuse body 100 are fixedly connected in such a manner that the connecting body 200 contacts the metal connecting member embedded in the connecting portion 120, thereby achieving conductive connection between the connecting body 200 and the fuse body 100.

After the connecting body 200 and the fuse body 100 are fixedly connected to form a whole, in order to realize the conductive connection between the connecting body 200 and the circuit to be protected, with reference to fig. 1 and fig. 2, a connecting terminal 410 is disposed on the base 400 of the embodiment of the present application, the connecting terminal 410 is electrically connected to the connecting body 200, and the connecting terminal 410 is used to install the fuse in the circuit to be protected, for example, the connecting terminal 410 electrically connects the fuse to a high voltage cable through the cable, so as to perform an overcurrent protection function.

The connecting terminal 410 may have various structural forms, for example, the connecting terminal 410 may be a terminal post, and a nut is matched to realize conductive connection with a cable; as another example, the connection terminal 410 may be a threaded hole that mates with a bolt to make a conductive connection with a cable.

The conductive connection between the connection terminal 410 and the connection body 200 is specifically described below with reference to fig. 6 and 7, where fig. 6 is a schematic structural diagram of a base of a fuse provided in the embodiment of the present application, and fig. 7 is a top view of the base of the fuse provided in the embodiment of the present application.

As shown in fig. 6 and 7, the base 400 of the embodiment of the present application includes an insulating base plate 420 and two mounting plates 430 disposed on the insulating base plate 420 in an opposite manner, wherein the insulating base plate 420 and the two mounting plates 430 are both elongated plates extending along the X-axis direction, the two mounting plates 430 are disposed on the insulating base plate 420 at intervals along the Y-axis direction, and an accommodating space 432 is provided between the two mounting plates 430. Of course, the insulating base plate 420 may have other shapes, such as a circular plate.

The insulating base plate 420 is used to fix the fuse to a predetermined component, for example, a housing, a bracket, etc. Illustratively, the insulating base plate 420 is provided with a mounting hole 421, such that a bolt passes through the mounting hole 421 to be screwed with a predetermined component, thereby achieving the fixed mounting of the insulating base plate 420. The number of the mounting holes 421 may be plural, so as to improve the reliability of the fuse fixing. For example, the mounting holes 421 are provided in four, and arranged in a rectangular matrix on the insulating base plate 420. Of course, this is not a limitation on the number and arrangement of the mounting holes 421.

The insulating base plate 420 of the embodiment of the present application is an insulating member, and realizes the fixed mounting of the fuse. The mounting plate 430 may also be an insulating member, and thus the fuse body 100 and the connecting body 200 may be insulated from predetermined components, thereby improving safety of the fuse.

The connection terminal 410 is located at an end of the insulating base plate 420, and the connection terminal 410 has a space from the mounting plate 430; the insulating substrate 420 is embedded with metal connectors, and the metal connectors are electrically connected to the connection terminals 410 and the connection body 200, respectively. In this way, the fuse body 100 is electrically connected to the circuit to be protected through the connecting body 200, the metal connecting member and the connecting terminal 410.

Optionally, a portion of the metal connector is exposed in the receiving space 432, and the bottom end of the connecting body 200 is received in the receiving space 432, such that the bottom end of the connecting body 200 contacts the metal connector to achieve the conductive connection between the connecting body 200 and the metal connector. Moreover, the bottom end of the connecting body 200 is accommodated in the accommodating space 432, and the bottom end of the connecting body can also play a role in shielding and protecting the connecting body 200, thereby playing a role in improving the safety of the fuse.

It should be noted that the fuse body 100 is electrically connected to the circuit to be protected, and usually two ends of the fuse body are electrically connected to the circuit to be protected respectively. As such, in the embodiment of the present application, two connection terminals 410 are provided, and the two connection terminals 410 are respectively disposed at two ends of the mounting board 430. Moreover, two connecting bodies 200 and two fasteners 300 are respectively disposed, and the two connecting bodies 200 are respectively fixed to two sides of the fuse main body 100; each connector 200 is electrically connected with one of the connection terminals 410 through a metal connector, and each connector 200 is connected to the base 400 through a clip 300.

Referring to fig. 1 and 2 again, the buckle 300 is rotatably mounted on the base 400, and the buckle 300 rotates towards the connecting body 200, so that the buckle 300 is clamped with the second side of the connecting body 200, thereby connecting the connecting body 200 to the base 400; the buckle 300 deviates from the connecting body 200 to rotate, so that the buckle 300 is separated from the second side of the connecting body 200, and thus, the connecting body 200 and the fusing main body 100 fixedly connected with the connecting body 200 can be disassembled from the base 400, the operation is simple and convenient, the efficiency is high, the tool is not needed, time and labor are saved, and the fuse is disassembled quickly and conveniently.

Buckle 300 can rotate for base 400, for example, buckle 300 passes through hinge mount on base 400, and for another example, buckle 300 is last to be provided with globular connector, be provided with on base 400 with spherical recess, globular connector cooperatees with spherical recess for buckle 300 can rotate for base 400.

In the embodiment of the present application, the latch 300 is rotatably connected to the mounting plate 430 of the base 400 through a rotating shaft 520, and particularly refer to fig. 6 to 9, where fig. 8 is a schematic structural diagram of the latch of the fuse provided in the embodiment of the present application; fig. 9 is an assembly diagram of a clip and a base of a fuse according to an embodiment of the present disclosure.

As shown in fig. 6 and 7, the two mounting plates 430 of the base 400 are provided with second rotation holes 431, and the second rotation holes 431 of the two mounting plates 430 are coaxially arranged. Referring to fig. 8, the buckle 300 is provided with a first rotation hole 321, and the first rotation hole 321 is coaxial with the second rotation hole 431. Referring to fig. 9 again, the bottom end of the buckle 300 is located in the accommodating space 432, and the rotating shaft 520 is rotatably installed in the first rotating hole 321 and the second rotating hole 431, so that the buckle 300 can rotate relative to the base 400, and thus the buckle 300 and the base 400 form a whole. Because the base 400 is fixed on the predetermined component, the buckle 300 is fixed relative to the predetermined component, and when the buckle 300 and the base 400 are disassembled, the buckle 300 and the base 400 are relatively fixed and can not be disassembled, so that the fixed connection mode of the buckle 300 and the base 400 and the fixed connection mode of the base 400 and the predetermined component can not affect the convenience of operation when the fuse is replaced.

The bottom end of the buckle 300 of the present embodiment is located in the accommodating space 432, which can play a role of limiting the movement of the buckle 300, thereby facilitating the improvement of the stability and reliability of the connection between the buckle 300 and the base 400.

The buckle 300 and the connecting body 200 are clamped, so that the connection is stable and reliable; and the disassembly and the assembly are simple and convenient, time and labor are saved, and the efficiency of the fuse replacement is improved.

In some embodiments of the clip 300 being clipped to the connector 200, referring to fig. 4 and 8, one of the second sides of the clip 300 and the connector 200 is provided with a clipping groove 211, and the other of the second sides of the clip 300 and the connector 200 is provided with a clipping protrusion 310, and the clipping protrusion 310 is clipped to the clipping groove 211. So set up, not only can realize buckle 300 and connector 200's joint, simple structure moreover, convenient processing, it is with low costs.

With continued reference to fig. 4, a second side of the connecting body 200 is provided with a clamping groove 211, specifically, a second side of the main board 210 of the connecting body 200 is provided with a clamping groove 211; correspondingly, referring to fig. 8, the clip 300 includes a main body 320 and a clip protrusion 310, the main body 320 has a first end and a second end opposite to each other, the first end of the main body 320 faces a positive direction of the Z axis, and the second end of the main body 320 faces a negative direction of the Z axis. The first end of the main body 320 is rotatably mounted on the base 400, that is, the first rotating hole 321 is disposed at the first end of the main body 320. The clamping protrusion 310 is disposed on one side of the main body 320 facing the connector 200, so as to be conveniently clamped with the clamping groove 211 or be conveniently separated from the clamping groove 211. In the embodiment of the application, the clamping groove 211 is formed in the second side of the connecting body 200, so that the processing is simple; the clamping protrusion 310 is arranged on the buckle 300 instead of the clamping groove, so that the structural strength of the buckle 300 is improved.

To facilitate the detachment of the buckle 300 from the connecting body 200, referring to fig. 1 in particular, the main body 320 is inclined away from the connecting body 200, such that the second end of the main body 320 is spaced apart from the second side of the connecting body 200. The inclination angle of the main body 320 is not limited in the embodiment of the present application.

With continued reference to fig. 4, the clamping groove 211 includes a groove bottom wall 2111, a top side wall 2112 and a bottom side wall 2113, the groove bottom wall 2111 is opposite to the side of the second side of the connecting body 200, the top side wall 2112 and the bottom side wall 2113 are oppositely disposed on the groove bottom wall 2111, the top side wall 2112 is disposed at the top end of the groove bottom wall 2111, and the bottom side wall 2113 is disposed at the bottom end of the groove bottom wall 2111, so as to form the clamping groove 211 facing the opening of the buckle 300. Top lateral wall 2112 deviates from the slope of bottom lateral wall 2113, plays the effect of guide, makes things convenient for buckle 300 card to go into joint groove 211, perhaps, makes things convenient for buckle 300 to deviate from in joint groove 211, improves the convenience of buckle 300 and the installation of connector 200 and dismantlement, does benefit to the efficiency that improves connector 200 and fusing main body 100 and dismantle.

In addition, referring to fig. 8, the end of the clamping protrusion 310 facing the top sidewall 2112 is provided with a first transition arc 311, which not only avoids stress concentration, but also facilitates the clamping and releasing of the buckle 300, and further improves the disassembling efficiency of the connecting body 200 and the fusing main body 100.

With reference to fig. 8, the clip 300 of the present embodiment further includes an abutting portion 330, the abutting portion 330 is connected to the first end of the main body portion 320, and the abutting portion 330 is located on a side of the main body portion 320 facing the connecting body 200, so that the abutting portion 330 is opposite to the clipping protrusion 310 at an interval. The abutting portion 330, the clamping protrusion 310 and the main body portion 320 between the clamping protrusion 310 and the abutting portion 330 form a mating opening 340, and the opening side of the mating opening 340 faces the connecting body 200.

The second transition arc 331 is disposed at a position where the abutting portion 330 is connected to the main body portion 320, and the second transition arc 331 is in line contact with the insulating bottom plate 420 of the base 400, so that the rotation of the buckle 300 relative to the base 400 is smoother and more labor-saving.

With reference to fig. 2 and 4, the second side of the connecting body 200 is further provided with a notch 212, and the notch 212 is matched with the abutting portion 330, so that the rotation of the buckle 300 relative to the connecting body 200 in an unstressed state can be avoided, and a limiting effect is achieved; the gap 212 and the clamping groove 211 have an interval; the portion of the connector 200 between the notch 212 and the clip groove 211 is matched with the matching opening 340, which is beneficial to improving the stability and reliability of the clip connection between the clip 300 and the connector 200.

In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A fuse, comprising: the fuse comprises a fusing main body, a connector, a buckle and a base;

the connecting body is provided with a first side and a second side which are opposite, the first side of the connecting body is fixedly connected with the fusing main body, and the connecting body is in conductive connection with the fusing main body;

the buckle is rotatably arranged on the base and rotates towards the connecting body, so that the buckle is clamped with the second side of the connecting body; the buckle rotates away from the connecting body, so that the buckle is separated from the second side of the connecting body;

be provided with connecting terminal on the base, connecting terminal with the connector electrically conducts and is connected, connecting terminal be used for with the fuse is installed in treating the protection circuit.

2. The fuse of claim 1, wherein one of the buckle and the second side of the connector is provided with a clamping groove, and the other of the buckle and the second side of the connector is provided with a clamping protrusion, and the clamping protrusion is clamped with the clamping groove.

3. The fuse of claim 2, wherein the second side of the connecting body is provided with a catching groove;

the buckle includes the main part and the joint is protruding, the first end of main part rotationally install in on the base, the joint protruding set up in the main part orientation one side of connector.

4. A fuse as recited in claim 3, wherein the body portion is angled away from the connecting body such that the second end of the body portion is spaced from the second side of the connecting body.

5. The fuse of claim 3, wherein the snap-in slot includes a slot bottom wall, a top side wall, and a bottom side wall, the slot bottom wall opposing a side of the second side of the connector, the top side wall and the bottom side wall being disposed opposite the slot bottom wall; the top sidewall slopes away from the bottom sidewall;

the protruding orientation of joint the tip of top lateral wall is provided with first transition circular arc.

6. The fuse of claim 3, wherein the catch further comprises an abutment portion connected to the first end of the main body portion, the abutment portion being located on a side of the main body portion facing the connecting body; the abutting part, the clamping protrusion and the part of the main body part between the clamping protrusion and the abutting part form a matching opening;

the second side of the connector is also provided with a notch matched with the abutting part, and the notch and the clamping groove are provided with an interval; the part of the connector between the notch and the clamping groove is matched with the matching opening.

7. A fuse as per any of claims 1-6, characterised in that the said clip is provided with a first rotary hole and the said base is provided with a second rotary hole coaxial with the first rotary hole;

the fuse also comprises a rotating shaft, and the rotating shaft is rotatably arranged in the first rotating hole and the second rotating hole.

8. The fuse of claim 7, wherein the base includes an insulating base plate and two mounting plates oppositely disposed on the insulating base plate with a receiving space therebetween; the two mounting plates are provided with second rotating holes; the bottom end of the connecting body and the bottom end of the buckle are both positioned in the accommodating interval;

the connecting terminal is positioned at the end part of the insulating bottom plate, and a gap is formed between the connecting terminal and the mounting plate; a metal connecting piece is embedded in the insulating bottom plate and is respectively in conductive connection with the connecting terminal and the connecting body;

and the insulating bottom plate is also provided with a mounting hole.

9. A fuse as per any of claims 1-6, characterised in that the connecting body is riveted or screwed to the fuse body.

10. A fuse according to any one of claims 1 to 6, wherein there are two connecting bodies and two fasteners, the two connecting bodies are fixed to two sides of the fuse body, and the two fasteners are used to fasten the two connecting bodies to the base; the base is provided with two connecting terminals.

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