CN219040393U

CN219040393U - Combined fuse convenient to use in narrow and small space

Info

Publication number: CN219040393U
Application number: CN202223247413.9U
Authority: CN
Inventors: 谢德贵; 杨红霞
Original assignee: Dongguan Andu Electronics Co ltd
Current assignee: Dongguan Andu Electronics Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-05-16
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses a combined fuse convenient to use in a narrow space, which comprises a base, a fuse body and a locking piece, wherein a positioning screw rod is arranged on the base, and the fuse body and the locking piece are arranged on the positioning screw rod. According to the utility model, the fuse can be conveniently connected into a circuit by arranging the base with the conductive arm, the fuse body positioned by the positioning screw rod and the locking piece and the two conductive rings connected by the conductive bridge, so that the structure layout is compact, the occupied space is small, and the installation requirement of the fuse in a narrow space can be met; through setting up insulating arm, first insulating part, fourth insulating part and the fifth insulating part of establishing on the base to and establish the second insulating part on the fuse body and establish the third insulating part on the retaining member, can establish tight insulation protection between base and external, base and positioning screw, positioning screw and fuse body, fuse body and external between, ensure the safe in utilization behind the fuse access circuit.

Description

Combined fuse convenient to use in narrow and small space

Technical Field

The utility model relates to the technical field of automobile fuses, in particular to a combined fuse which is convenient to use in a narrow space.

Background

Fuses, commonly known as fuses, are an important component of an in-car circuit and are generally used for over-current protection of the circuit. In the process of connecting the lines, in order to ensure that the fuse is stably connected with the lines, the fuse is generally fixed on the base, and then the base is fixed on the fixed support in the vehicle. The conventional automotive fuses mainly comprise forkbolt type and bolt type structures, the transverse and longitudinal dimensions of the automotive fuses are generally large, and when the installation space is relatively narrow, the fuse is difficult to position, and a special supporting base is generally required to be designed.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides the combined fuse which is convenient to use in a narrow space, has compact structural layout and smaller occupied space, can meet the installation requirement of the fuse in the narrow space, can establish tight insulation protection between the fuse and the outside, and ensures the use safety of the fuse after being connected into a circuit.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a modular fuse for use in a confined space, comprising:

the base is of an L-shaped structure, the longitudinal arm of the base is an insulating arm, and the transverse arm of the base is a conductive arm; a positioning screw rod extending longitudinally is arranged on the transverse arm of the base, a first insulating part is arranged at the joint of the positioning screw rod and the transverse arm, and the end part of the first insulating part extends to the middle part of the positioning screw rod;

the fuse body comprises a second insulating part sleeved on the periphery of the first insulating part, the upper end part and the lower end part of the second insulating part are respectively provided with a conductive ring, the two conductive rings are coaxially arranged on the periphery of the positioning screw rod, the two conductive rings are connected through a conductive bridge arranged on the second insulating part, and the conductive bridge is arranged on the end face, far away from the positioning screw rod, of the fuse body;

the locking piece is arranged on the positioning screw in a matching way and is in threaded connection with the positioning screw, and a third insulating part is arranged on the locking piece; in the locked state, the first insulating portion extends to above the fuse body.

As a further explanation of the above technical solution:

in the above technical solution, the transverse arm includes a zigzag conductive plate, a fourth insulating portion, and a fifth insulating portion: the conductive plate is provided with a first conductive part and a second conductive part which are parallel, the first conductive part and the second conductive part are respectively provided with a positioning hole groove, and the positioning screw rod penetrates through one positioning hole groove and is fixed on the second conductive part; the fourth insulating part is arranged at the lower end of the second conductive part, and the two ends of the fourth insulating part are respectively extended to the first conductive part and the longitudinal arm; the fifth insulating part is arranged at the periphery of the joint of the first conductive part and the second conductive part.

In the above technical solution, the first insulating portion, the fourth insulating portion, the fifth insulating portion, and the longitudinal arm are integrally formed.

In the above technical solution, the second insulating portion has a square structure, the bottom end portion of the second insulating portion is adapted to the second conductive portion, the side wall of the second insulating portion is adapted to the longitudinal arm, and a through hole adapted to the first insulating portion is formed in the center of the second insulating portion.

In the above technical scheme, an insulating protective cover is further arranged on the fuse body at the periphery of the conductive bridge, and two ends of the insulating protective cover are respectively embedded on the upper end face and the lower end face of the second insulating part.

In the above technical scheme, the insulating protective cover is a transparent protective cover.

In the above technical scheme, the base and the fuse body are independent structures.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the base with the conductive arm, the fuse body which is limited and positioned through the positioning screw rod and the locking piece and the two conductive rings which are connected through the conductive bridge are arranged, so that the fuse can be very conveniently connected into a circuit, the structure layout is compact, the occupied space is small, and the installation requirement of the fuse in a narrow space can be met; through setting up insulating arm, first insulating part, fourth insulating part and the fifth insulating part of establishing on the base to and establish the second insulating part on the fuse body and establish the third insulating part on the retaining member, can form tight insulation protection between base and external, base and locating screw, locating screw and fuse body, fuse body and external, ensure the safe in utilization behind the fuse access circuit.

Drawings

Fig. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic view of the structure of the base in the present embodiment;

FIG. 3 is a schematic view of the structure of the base and the positioning screw in the present embodiment;

fig. 4 is a schematic structural view of the fuse body in the present embodiment.

In the figure: 10. a base; 11. a longitudinal arm; 12. a transverse arm; 121. a conductive plate 122, a fourth insulating portion; 123. a fifth insulating portion; 1. a first conductive portion; 2. a second conductive portion; 3. positioning hole slots; 13. a first insulating portion; 20. positioning a screw; 30. a fuse body; 31. a second insulating portion; 311. a through hole; 32. a conductive ring; 33. a conductive bridge; 34. an insulating protective cover; 40. a locking member; 41. and a third insulating portion.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended for purposes of illustrating the present application and are not to be construed as limiting the present application. In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a number", "a plurality" or "a plurality" is two or more, unless explicitly defined otherwise. In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be. In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1, a combination fuse for use in a small space, comprising:

the base 10, the base 10 is L-shaped structure, the longitudinal arm 11 is an insulating arm, and the transverse arm 12 is a conductive arm; a positioning screw rod 20 extending longitudinally is arranged on the transverse arm 12 of the base 10, a first insulating part 13 is arranged at the joint of the positioning screw rod 20 and the transverse arm 12, and the end part of the first insulating part 13 extends to the middle part of the positioning screw rod 20;

the fuse body 30 comprises a second insulating part 31 sleeved on the periphery of the first insulating part 13, wherein the upper end part and the lower end part of the second insulating part 31 are respectively provided with a conductive ring 32, the two conductive rings 32 are coaxially arranged on the periphery of the positioning screw 20, the two conductive rings 32 are connected through a conductive bridge 33 arranged on the second insulating part 31, and the conductive bridge 33 is arranged on the end face of the fuse body 30 far away from the positioning screw 20;

the locking piece 40 is arranged on the positioning screw rod 20 in a matching way and is in threaded connection with the positioning screw rod, and a third insulation part 41 is arranged on the locking piece 40; in the locked state, the first insulating portion 13 extends above the fuse body 30.

The utility model can very conveniently connect the fuse into the circuit to have compact structural layout and small occupied space by arranging the base 10 with the conductive arms, the fuse body 30 which is limited and positioned by the positioning screw rod 20 and the locking piece 40 and the two conductive rings 32 which are connected by the conductive bridge 33, and can meet the installation requirement of the fuse in a narrow space.

Specifically, as shown in fig. 2, the lateral arm 12 includes a zigzag conductive plate 121, a fourth insulating portion 122, and a fifth insulating portion 123: the conductive plate 121 is provided with a first conductive part 1 and a second conductive part 2 which are parallel, the first conductive part 1 and the second conductive part 2 are provided with a positioning hole groove 3, and the positioning screw rod 20 passes through the positioning hole groove 3 and is fixed on the second conductive part 2; the fourth insulating part 122 is provided at the lower end of the second conductive part 2, and both ends thereof are extended to the first conductive part 121 and the longitudinal arm 11, respectively; the fifth insulating portion 123 is provided at the periphery of the junction of the first conductive portion 1 and the second conductive portion 2.

Specifically, the first insulating portion 13, the fourth insulating portion 122, the fifth insulating portion 123, and the longitudinal arm 11 are integrally molded.

In this embodiment, the positioning screw 20 and the conductive plate 121 are both placed in a plastic mold for in-mold molding, the first insulating portion 13 and the fourth insulating portion 122 are directly wrapped around the periphery of the positioning screw 20, the fourth insulating portion 122, the fifth insulating portion 123 and the longitudinal arm 11 are directly wrapped around the periphery of the conductive plate 121, so that the connection is stable, secondary assembly is not required, the insulating performance between the portions can be ensured, and the use safety is ensured.

Specifically, as shown in fig. 3, the second insulating portion 31 has a square structure, the bottom end portion of the second insulating portion is adapted to the second conductive portion 122, the side wall of the second insulating portion is adapted to the longitudinal arm 11, and a through hole 311 adapted to the first insulating portion 13 is provided at the center of the second insulating portion; the fuse body 30 is further provided with an insulating protection cover 34 on the periphery of the conductive bridge 33, and two ends of the insulating protection cover 34 are respectively embedded on the upper end face and the lower end face of the second insulating part 31.

Specifically, the insulating shield 34 is a transparent shield.

It will be appreciated that the transparent insulating shield 34 facilitates an operator's visual inspection of whether the conductive bridge 33 is fused from the outside.

The utility model can establish tight insulation protection between the base 10 and the outside, between the base 10 and the positioning screw 20, between the positioning screw and the fuse body 30, and between the fuse body 30 and the outside by arranging the insulation arms, the first insulation part 13, the fourth insulation part 122 and the fifth insulation part 123 which are arranged on the base 10, the second insulation part 31 which is arranged on the fuse body 30 and the third insulation part 41 which is arranged on the locking piece 40, thereby ensuring the use safety after the fuse is connected into a circuit.

Specifically, the base 10 and the fuse body 20 are independent structures.

The base and the fuse body are arranged as mutually matched but independent individuals, so that the circuit connection operation in a narrow space is facilitated. When the fuse is used, the terminal of the element is fixed on the positioning hole groove 3 on the first conductive part 1, the first conductive part 1 is pushed against or embedded into the element, the fifth insulating part 123 is ensured to be abutted against the insulating part on the element, the fuse body 30 is sleeved on the positioning screw 20, the insulating protective cover 34 is ensured to face outwards, the other end of the circuit is pressed on the conductive ring 32, the locking piece 40 is screwed, the other terminal, the fuse body 30 and the base 10 are pressed together, and at the moment, one end of the circuit is communicated with the other end of the circuit through the conductive plate 121 and the two conductive rings 32 connected through the conductive bridge 33; finally, the longitudinal arm 11 and the first insulating portion 13 of the base 10 are inserted into the installation space. In the application, can be according to the actual structure in installation space, install suitable support tight piece additional in the side of fuse, ensure that the base is not movable, it is convenient to install, flexible operation.

The above description should not be taken as limiting the scope of the utility model, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims

1. A modular fuse for use in a confined space, comprising:

2. The combination fuse of claim 1, wherein the transverse arm comprises a zigzag-shaped conductive plate, a fourth insulating portion, and a fifth insulating portion: the conductive plate is provided with a first conductive part and a second conductive part which are parallel, the first conductive part and the second conductive part are respectively provided with a positioning hole groove, and the positioning screw rod penetrates through one positioning hole groove and is fixed on the second conductive part; the fourth insulating part is arranged at the lower end of the second conductive part, and the two ends of the fourth insulating part are respectively extended to the first conductive part and the longitudinal arm; the fifth insulating part is arranged at the periphery of the joint of the first conductive part and the second conductive part.

3. The combination fuse of claim 2, wherein the first, fourth, fifth and longitudinal arms are integrally formed.

4. The combination fuse of claim 2, wherein the second insulating portion has a square structure, a bottom end portion thereof is adapted to the second conductive portion, a side wall thereof is adapted to the longitudinal arm, and a through hole is provided at a center thereof, the through hole being adapted to the first insulating portion.

5. The combination fuse of claim 1, wherein the fuse body is further provided with an insulating shield on the periphery of the conductive bridge, and two ends of the insulating shield are respectively embedded on the upper end face and the lower end face of the second insulating portion.

6. The combination fuse of claim 5, wherein the insulating shield is a transparent shield.

7. The combination fuse of any one of claims 1-6, wherein the base and the fuse body are of independent construction.